| 1 | /* X Communication module for terminals which understand the X protocol. |
| 2 | Copyright (C) 1989, 1993, 1994 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Emacs. |
| 5 | |
| 6 | GNU Emacs is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GNU Emacs is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GNU Emacs; see the file COPYING. If not, write to |
| 18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | /* Xt features made by Fred Pierresteguy. */ |
| 21 | |
| 22 | /* On 4.3 these lose if they come after xterm.h. */ |
| 23 | /* On HP-UX 8.0 signal.h loses if it comes after config.h. */ |
| 24 | /* Putting these at the beginning seems to be standard for other .c files. */ |
| 25 | #include <signal.h> |
| 26 | |
| 27 | #include <config.h> |
| 28 | |
| 29 | #include <stdio.h> |
| 30 | |
| 31 | /* Need syssignal.h for various externs and definitions that may be required |
| 32 | by some configurations for calls to signal later in this source file. */ |
| 33 | #include "syssignal.h" |
| 34 | |
| 35 | #ifdef HAVE_X_WINDOWS |
| 36 | |
| 37 | #include "lisp.h" |
| 38 | #include "blockinput.h" |
| 39 | |
| 40 | /* This may include sys/types.h, and that somehow loses |
| 41 | if this is not done before the other system files. */ |
| 42 | #include "xterm.h" |
| 43 | #include <X11/cursorfont.h> |
| 44 | |
| 45 | #ifndef USG |
| 46 | /* Load sys/types.h if not already loaded. |
| 47 | In some systems loading it twice is suicidal. */ |
| 48 | #ifndef makedev |
| 49 | #include <sys/types.h> |
| 50 | #endif /* makedev */ |
| 51 | #endif /* USG */ |
| 52 | |
| 53 | #ifdef BSD |
| 54 | #include <sys/ioctl.h> |
| 55 | #endif /* ! defined (BSD) */ |
| 56 | |
| 57 | #include "systty.h" |
| 58 | #include "systime.h" |
| 59 | |
| 60 | #ifndef INCLUDED_FCNTL |
| 61 | #include <fcntl.h> |
| 62 | #endif |
| 63 | #include <ctype.h> |
| 64 | #include <errno.h> |
| 65 | #include <setjmp.h> |
| 66 | #include <sys/stat.h> |
| 67 | #include <sys/param.h> |
| 68 | |
| 69 | #include "dispextern.h" |
| 70 | #include "termhooks.h" |
| 71 | #include "termopts.h" |
| 72 | #include "termchar.h" |
| 73 | #if 0 |
| 74 | #include "sink.h" |
| 75 | #include "sinkmask.h" |
| 76 | #endif /* ! 0 */ |
| 77 | #include "gnu.h" |
| 78 | #include "frame.h" |
| 79 | #include "disptab.h" |
| 80 | #include "buffer.h" |
| 81 | #include "window.h" |
| 82 | #include "keyboard.h" |
| 83 | #include "intervals.h" |
| 84 | |
| 85 | #ifdef USE_X_TOOLKIT |
| 86 | extern XtAppContext Xt_app_con; |
| 87 | extern Widget Xt_app_shell; |
| 88 | extern void free_frame_menubar (); |
| 89 | extern void _XEditResCheckMessages (); |
| 90 | #endif /* USE_X_TOOLKIT */ |
| 91 | |
| 92 | #ifndef USE_X_TOOLKIT |
| 93 | #define x_any_window_to_frame x_window_to_frame |
| 94 | #define x_top_window_to_frame x_window_to_frame |
| 95 | #endif |
| 96 | |
| 97 | #ifdef USE_X_TOOLKIT |
| 98 | #ifndef XtNinitialState |
| 99 | #define XtNinitialState "initialState" |
| 100 | #endif |
| 101 | #endif |
| 102 | |
| 103 | #define XMapWindow XMapRaised /* Raise them when mapping. */ |
| 104 | |
| 105 | #ifdef FD_SET |
| 106 | /* We could get this from param.h, but better not to depend on finding that. |
| 107 | And better not to risk that it might define other symbols used in this |
| 108 | file. */ |
| 109 | #ifdef FD_SETSIZE |
| 110 | #define MAXDESC FD_SETSIZE |
| 111 | #else |
| 112 | #define MAXDESC 64 |
| 113 | #endif |
| 114 | #define SELECT_TYPE fd_set |
| 115 | #else /* no FD_SET */ |
| 116 | #define MAXDESC 32 |
| 117 | #define SELECT_TYPE int |
| 118 | |
| 119 | /* Define the macros to access a single-int bitmap of descriptors. */ |
| 120 | #define FD_SET(n, p) (*(p) |= (1 << (n))) |
| 121 | #define FD_CLR(n, p) (*(p) &= ~(1 << (n))) |
| 122 | #define FD_ISSET(n, p) (*(p) & (1 << (n))) |
| 123 | #define FD_ZERO(p) (*(p) = 0) |
| 124 | #endif /* no FD_SET */ |
| 125 | |
| 126 | /* For sending Meta-characters. Do we need this? */ |
| 127 | #define METABIT 0200 |
| 128 | |
| 129 | #define min(a,b) ((a)<(b) ? (a) : (b)) |
| 130 | #define max(a,b) ((a)>(b) ? (a) : (b)) |
| 131 | \f |
| 132 | /* Nonzero means we must reprint all windows |
| 133 | because 1) we received an ExposeWindow event |
| 134 | or 2) we received too many ExposeRegion events to record. |
| 135 | |
| 136 | This is never needed under X11. */ |
| 137 | static int expose_all_windows; |
| 138 | |
| 139 | /* Nonzero means we must reprint all icon windows. */ |
| 140 | |
| 141 | static int expose_all_icons; |
| 142 | |
| 143 | #if defined (SIGIO) && defined (FIONREAD) |
| 144 | int BLOCK_INPUT_mask; |
| 145 | #endif /* ! defined (SIGIO) && defined (FIONREAD) */ |
| 146 | |
| 147 | /* The id of a bitmap used for icon windows. |
| 148 | One such map is shared by all Emacs icon windows. |
| 149 | This is zero if we have not yet had a need to create the bitmap. */ |
| 150 | |
| 151 | static Bitmap icon_bitmap; |
| 152 | |
| 153 | /* Font used for text icons. */ |
| 154 | |
| 155 | static FONT_TYPE *icon_font_info; |
| 156 | |
| 157 | /* Stuff for dealing with the main icon title. */ |
| 158 | |
| 159 | extern Lisp_Object Vcommand_line_args, Vsystem_name; |
| 160 | char *x_id_name; |
| 161 | |
| 162 | /* Initial values of argv and argc. */ |
| 163 | extern char **initial_argv; |
| 164 | extern int initial_argc; |
| 165 | |
| 166 | /* This is the X connection that we are using. */ |
| 167 | |
| 168 | Display *x_current_display; |
| 169 | |
| 170 | /* The cursor to use for vertical scroll bars on x_current_display. */ |
| 171 | static Cursor x_vertical_scroll_bar_cursor; |
| 172 | |
| 173 | /* Frame being updated by update_frame. This is declared in term.c. |
| 174 | This is set by update_begin and looked at by all the |
| 175 | XT functions. It is zero while not inside an update. |
| 176 | In that case, the XT functions assume that `selected_frame' |
| 177 | is the frame to apply to. */ |
| 178 | extern struct frame *updating_frame; |
| 179 | |
| 180 | /* The frame (if any) which has the X window that has keyboard focus. |
| 181 | Zero if none. This is examined by Ffocus_frame in frame.c. Note |
| 182 | that a mere EnterNotify event can set this; if you need to know the |
| 183 | last frame specified in a FocusIn or FocusOut event, use |
| 184 | x_focus_event_frame. */ |
| 185 | struct frame *x_focus_frame; |
| 186 | |
| 187 | /* This is a frame waiting to be autoraised, within XTread_socket. */ |
| 188 | struct frame *pending_autoraise_frame; |
| 189 | |
| 190 | /* The last frame mentioned in a FocusIn or FocusOut event. This is |
| 191 | separate from x_focus_frame, because whether or not LeaveNotify |
| 192 | events cause us to lose focus depends on whether or not we have |
| 193 | received a FocusIn event for it. */ |
| 194 | struct frame *x_focus_event_frame; |
| 195 | |
| 196 | /* The frame which currently has the visual highlight, and should get |
| 197 | keyboard input (other sorts of input have the frame encoded in the |
| 198 | event). It points to the X focus frame's selected window's |
| 199 | frame. It differs from x_focus_frame when we're using a global |
| 200 | minibuffer. */ |
| 201 | static struct frame *x_highlight_frame; |
| 202 | |
| 203 | /* From .Xdefaults, the value of "emacs.WarpMouse". If non-zero, |
| 204 | mouse is moved to inside of frame when frame is de-iconified. */ |
| 205 | |
| 206 | static int warp_mouse_on_deiconify; |
| 207 | |
| 208 | /* During an update, maximum vpos for ins/del line operations to affect. */ |
| 209 | |
| 210 | static int flexlines; |
| 211 | |
| 212 | /* During an update, nonzero if chars output now should be highlighted. */ |
| 213 | |
| 214 | static int highlight; |
| 215 | |
| 216 | /* Nominal cursor position -- where to draw output. |
| 217 | During an update, these are different from the cursor-box position. */ |
| 218 | |
| 219 | static int curs_x; |
| 220 | static int curs_y; |
| 221 | |
| 222 | /* Reusable Graphics Context for drawing a cursor in a non-default face. */ |
| 223 | static GC scratch_cursor_gc; |
| 224 | |
| 225 | /* Mouse movement. |
| 226 | |
| 227 | In order to avoid asking for motion events and then throwing most |
| 228 | of them away or busy-polling the server for mouse positions, we ask |
| 229 | the server for pointer motion hints. This means that we get only |
| 230 | one event per group of mouse movements. "Groups" are delimited by |
| 231 | other kinds of events (focus changes and button clicks, for |
| 232 | example), or by XQueryPointer calls; when one of these happens, we |
| 233 | get another MotionNotify event the next time the mouse moves. This |
| 234 | is at least as efficient as getting motion events when mouse |
| 235 | tracking is on, and I suspect only negligibly worse when tracking |
| 236 | is off. |
| 237 | |
| 238 | The silly O'Reilly & Associates Nutshell guides barely document |
| 239 | pointer motion hints at all (I think you have to infer how they |
| 240 | work from an example), and the description of XQueryPointer doesn't |
| 241 | mention that calling it causes you to get another motion hint from |
| 242 | the server, which is very important. */ |
| 243 | |
| 244 | /* Where the mouse was last time we reported a mouse event. */ |
| 245 | static FRAME_PTR last_mouse_frame; |
| 246 | static XRectangle last_mouse_glyph; |
| 247 | |
| 248 | /* The scroll bar in which the last X motion event occurred. |
| 249 | |
| 250 | If the last X motion event occurred in a scroll bar, we set this |
| 251 | so XTmouse_position can know whether to report a scroll bar motion or |
| 252 | an ordinary motion. |
| 253 | |
| 254 | If the last X motion event didn't occur in a scroll bar, we set this |
| 255 | to Qnil, to tell XTmouse_position to return an ordinary motion event. */ |
| 256 | static Lisp_Object last_mouse_scroll_bar; |
| 257 | |
| 258 | /* Record which buttons are currently pressed. */ |
| 259 | unsigned int x_mouse_grabbed; |
| 260 | |
| 261 | /* This is a hack. We would really prefer that XTmouse_position would |
| 262 | return the time associated with the position it returns, but there |
| 263 | doesn't seem to be any way to wrest the timestamp from the server |
| 264 | along with the position query. So, we just keep track of the time |
| 265 | of the last movement we received, and return that in hopes that |
| 266 | it's somewhat accurate. */ |
| 267 | static Time last_mouse_movement_time; |
| 268 | |
| 269 | /* These variables describe the range of text currently shown |
| 270 | in its mouse-face, together with the window they apply to. |
| 271 | As long as the mouse stays within this range, we need not |
| 272 | redraw anything on its account. */ |
| 273 | static int mouse_face_beg_row, mouse_face_beg_col; |
| 274 | static int mouse_face_end_row, mouse_face_end_col; |
| 275 | static int mouse_face_past_end; |
| 276 | static Lisp_Object mouse_face_window; |
| 277 | static int mouse_face_face_id; |
| 278 | |
| 279 | /* 1 if a mouse motion event came and we didn't handle it right away because |
| 280 | gc was in progress. */ |
| 281 | static int mouse_face_deferred_gc; |
| 282 | |
| 283 | /* FRAME and X, Y position of mouse when last checked for |
| 284 | highlighting. X and Y can be negative or out of range for the frame. */ |
| 285 | static FRAME_PTR mouse_face_mouse_frame; |
| 286 | static int mouse_face_mouse_x, mouse_face_mouse_y; |
| 287 | |
| 288 | /* Nonzero means defer mouse-motion highlighting. */ |
| 289 | static int mouse_face_defer; |
| 290 | |
| 291 | /* `t' if a mouse button is depressed. */ |
| 292 | |
| 293 | extern Lisp_Object Vmouse_depressed; |
| 294 | |
| 295 | /* Tells if a window manager is present or not. */ |
| 296 | |
| 297 | extern Lisp_Object Vx_no_window_manager; |
| 298 | |
| 299 | /* Timestamp that we requested selection data was made. */ |
| 300 | extern Time requestor_time; |
| 301 | |
| 302 | /* ID of the window requesting selection data. */ |
| 303 | extern Window requestor_window; |
| 304 | |
| 305 | /* Nonzero enables some debugging for the X interface code. */ |
| 306 | extern int _Xdebug; |
| 307 | |
| 308 | extern Lisp_Object Qface, Qmouse_face; |
| 309 | |
| 310 | static int x_noop_count; |
| 311 | |
| 312 | |
| 313 | /* From time to time we get info on an Emacs window, here. */ |
| 314 | |
| 315 | static WINDOWINFO_TYPE windowinfo; |
| 316 | |
| 317 | extern int errno; |
| 318 | |
| 319 | /* A mask of extra modifier bits to put into every keyboard char. */ |
| 320 | extern int extra_keyboard_modifiers; |
| 321 | |
| 322 | extern Display *XOpenDisplay (); |
| 323 | extern Window XCreateWindow (); |
| 324 | |
| 325 | extern Cursor XCreateCursor (); |
| 326 | extern FONT_TYPE *XOpenFont (); |
| 327 | |
| 328 | static void flashback (); |
| 329 | static void redraw_previous_char (); |
| 330 | static void redraw_following_char (); |
| 331 | static unsigned int x_x_to_emacs_modifiers (); |
| 332 | |
| 333 | static int fast_find_position (); |
| 334 | static void note_mouse_highlight (); |
| 335 | static void clear_mouse_face (); |
| 336 | static void show_mouse_face (); |
| 337 | |
| 338 | void dumpborder (); |
| 339 | static int XTcursor_to (); |
| 340 | static int XTclear_end_of_line (); |
| 341 | |
| 342 | \f |
| 343 | /* Starting and ending updates. |
| 344 | |
| 345 | These hooks are called by update_frame at the beginning and end |
| 346 | of a frame update. We record in `updating_frame' the identity |
| 347 | of the frame being updated, so that the XT... functions do not |
| 348 | need to take a frame as argument. Most of the XT... functions |
| 349 | should never be called except during an update, the only exceptions |
| 350 | being XTcursor_to, XTwrite_glyphs and XTreassert_line_highlight. */ |
| 351 | |
| 352 | extern int mouse_track_top, mouse_track_left, mouse_track_width; |
| 353 | |
| 354 | static |
| 355 | XTupdate_begin (f) |
| 356 | struct frame *f; |
| 357 | { |
| 358 | int mask; |
| 359 | |
| 360 | if (f == 0) |
| 361 | abort (); |
| 362 | |
| 363 | flexlines = f->height; |
| 364 | highlight = 0; |
| 365 | |
| 366 | BLOCK_INPUT; |
| 367 | |
| 368 | if (f == mouse_face_mouse_frame) |
| 369 | { |
| 370 | /* Don't do highlighting for mouse motion during the update. */ |
| 371 | mouse_face_defer = 1; |
| 372 | if (!NILP (mouse_face_window)) |
| 373 | { |
| 374 | int firstline, lastline, i; |
| 375 | struct window *w = XWINDOW (mouse_face_window); |
| 376 | |
| 377 | /* Find the first, and the last+1, lines affected by redisplay. */ |
| 378 | for (firstline = 0; firstline < f->height; firstline++) |
| 379 | if (FRAME_DESIRED_GLYPHS (f)->enable[firstline]) |
| 380 | break; |
| 381 | |
| 382 | lastline = f->height; |
| 383 | for (i = f->height - 1; i >= 0; i--) |
| 384 | { |
| 385 | if (FRAME_DESIRED_GLYPHS (f)->enable[i]) |
| 386 | break; |
| 387 | else |
| 388 | lastline = i; |
| 389 | } |
| 390 | |
| 391 | /* Can we tell that this update does not affect the window |
| 392 | where the mouse highlight is? If so, no need to turn off. */ |
| 393 | if (! (firstline > (XFASTINT (w->top) + window_internal_height (w)) |
| 394 | || lastline < XFASTINT (w->top))) |
| 395 | /* Otherwise turn off the mouse highlight now. */ |
| 396 | clear_mouse_face (); |
| 397 | } |
| 398 | } |
| 399 | |
| 400 | UNBLOCK_INPUT; |
| 401 | } |
| 402 | |
| 403 | static |
| 404 | XTupdate_end (f) |
| 405 | struct frame *f; |
| 406 | { |
| 407 | int mask; |
| 408 | |
| 409 | BLOCK_INPUT; |
| 410 | |
| 411 | x_display_cursor (f, 1); |
| 412 | |
| 413 | if (f == mouse_face_mouse_frame) |
| 414 | mouse_face_defer = 0; |
| 415 | #if 0 |
| 416 | /* This fails in the case of having updated only the echo area |
| 417 | if we have switched buffers. In that case, FRAME_CURRENT_GLYPHS |
| 418 | has no relation to the current contents, and its charstarts |
| 419 | have no relation to the contents of the window-buffer. |
| 420 | I don't know a clean way to check |
| 421 | for that case. window_end_valid isn't set up yet. */ |
| 422 | if (f == mouse_face_mouse_frame) |
| 423 | note_mouse_highlight (f, mouse_face_mouse_x, mouse_face_mouse_y); |
| 424 | #endif |
| 425 | |
| 426 | XFlushQueue (); |
| 427 | UNBLOCK_INPUT; |
| 428 | } |
| 429 | |
| 430 | /* This is called after a redisplay on frame F. */ |
| 431 | |
| 432 | static |
| 433 | XTframe_up_to_date (f) |
| 434 | FRAME_PTR f; |
| 435 | { |
| 436 | if (mouse_face_deferred_gc || f == mouse_face_mouse_frame) |
| 437 | { |
| 438 | note_mouse_highlight (mouse_face_mouse_frame, |
| 439 | mouse_face_mouse_x, mouse_face_mouse_y); |
| 440 | mouse_face_deferred_gc = 0; |
| 441 | } |
| 442 | } |
| 443 | \f |
| 444 | /* External interface to control of standout mode. |
| 445 | Call this when about to modify line at position VPOS |
| 446 | and not change whether it is highlighted. */ |
| 447 | |
| 448 | XTreassert_line_highlight (new, vpos) |
| 449 | int new, vpos; |
| 450 | { |
| 451 | highlight = new; |
| 452 | } |
| 453 | |
| 454 | /* Call this when about to modify line at position VPOS |
| 455 | and change whether it is highlighted. */ |
| 456 | |
| 457 | static |
| 458 | XTchange_line_highlight (new_highlight, vpos, first_unused_hpos) |
| 459 | int new_highlight, vpos, first_unused_hpos; |
| 460 | { |
| 461 | highlight = new_highlight; |
| 462 | XTcursor_to (vpos, 0); |
| 463 | XTclear_end_of_line (updating_frame->width); |
| 464 | } |
| 465 | |
| 466 | /* This is used when starting Emacs and when restarting after suspend. |
| 467 | When starting Emacs, no X window is mapped. And nothing must be done |
| 468 | to Emacs's own window if it is suspended (though that rarely happens). */ |
| 469 | |
| 470 | static |
| 471 | XTset_terminal_modes () |
| 472 | { |
| 473 | } |
| 474 | |
| 475 | /* This is called when exiting or suspending Emacs. |
| 476 | Exiting will make the X-windows go away, and suspending |
| 477 | requires no action. */ |
| 478 | |
| 479 | static |
| 480 | XTreset_terminal_modes () |
| 481 | { |
| 482 | /* XTclear_frame (); */ |
| 483 | } |
| 484 | \f |
| 485 | /* Set the nominal cursor position of the frame. |
| 486 | This is where display update commands will take effect. |
| 487 | This does not affect the place where the cursor-box is displayed. */ |
| 488 | |
| 489 | static int |
| 490 | XTcursor_to (row, col) |
| 491 | register int row, col; |
| 492 | { |
| 493 | int mask; |
| 494 | int orow = row; |
| 495 | |
| 496 | curs_x = col; |
| 497 | curs_y = row; |
| 498 | |
| 499 | if (updating_frame == 0) |
| 500 | { |
| 501 | BLOCK_INPUT; |
| 502 | x_display_cursor (selected_frame, 1); |
| 503 | XFlushQueue (); |
| 504 | UNBLOCK_INPUT; |
| 505 | } |
| 506 | } |
| 507 | \f |
| 508 | /* Display a sequence of N glyphs found at GP. |
| 509 | WINDOW is the x-window to output to. LEFT and TOP are starting coords. |
| 510 | HL is 1 if this text is highlighted, 2 if the cursor is on it, |
| 511 | 3 if should appear in its mouse-face. |
| 512 | JUST_FOREGROUND if 1 means draw only the foreground; |
| 513 | don't alter the background. |
| 514 | |
| 515 | FONT is the default font to use (for glyphs whose font-code is 0). |
| 516 | |
| 517 | Since the display generation code is responsible for calling |
| 518 | compute_char_face and compute_glyph_face on everything it puts in |
| 519 | the display structure, we can assume that the face code on each |
| 520 | glyph is a valid index into FRAME_COMPUTED_FACES (f), and the one |
| 521 | to which we can actually apply intern_face. |
| 522 | Call this function with input blocked. */ |
| 523 | |
| 524 | #if 1 |
| 525 | /* This is the multi-face code. */ |
| 526 | |
| 527 | static void |
| 528 | dumpglyphs (f, left, top, gp, n, hl, just_foreground) |
| 529 | struct frame *f; |
| 530 | int left, top; |
| 531 | register GLYPH *gp; /* Points to first GLYPH. */ |
| 532 | register int n; /* Number of glyphs to display. */ |
| 533 | int hl; |
| 534 | int just_foreground; |
| 535 | { |
| 536 | /* Holds characters to be displayed. */ |
| 537 | char *buf = (char *) alloca (f->width * sizeof (*buf)); |
| 538 | register char *cp; /* Steps through buf[]. */ |
| 539 | register int tlen = GLYPH_TABLE_LENGTH; |
| 540 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; |
| 541 | Window window = FRAME_X_WINDOW (f); |
| 542 | int orig_left = left; |
| 543 | |
| 544 | while (n > 0) |
| 545 | { |
| 546 | /* Get the face-code of the next GLYPH. */ |
| 547 | int cf, len; |
| 548 | int g = *gp; |
| 549 | |
| 550 | GLYPH_FOLLOW_ALIASES (tbase, tlen, g); |
| 551 | cf = FAST_GLYPH_FACE (g); |
| 552 | |
| 553 | /* Find the run of consecutive glyphs with the same face-code. |
| 554 | Extract their character codes into BUF. */ |
| 555 | cp = buf; |
| 556 | while (n > 0) |
| 557 | { |
| 558 | g = *gp; |
| 559 | GLYPH_FOLLOW_ALIASES (tbase, tlen, g); |
| 560 | if (FAST_GLYPH_FACE (g) != cf) |
| 561 | break; |
| 562 | |
| 563 | *cp++ = FAST_GLYPH_CHAR (g); |
| 564 | --n; |
| 565 | ++gp; |
| 566 | } |
| 567 | |
| 568 | /* LEN gets the length of the run. */ |
| 569 | len = cp - buf; |
| 570 | |
| 571 | /* Now output this run of chars, with the font and pixel values |
| 572 | determined by the face code CF. */ |
| 573 | { |
| 574 | struct face *face = FRAME_DEFAULT_FACE (f); |
| 575 | FONT_TYPE *font = FACE_FONT (face); |
| 576 | GC gc = FACE_GC (face); |
| 577 | |
| 578 | /* HL = 3 means use a mouse face previously chosen. */ |
| 579 | if (hl == 3) |
| 580 | cf = mouse_face_face_id; |
| 581 | |
| 582 | /* First look at the face of the text itself. */ |
| 583 | if (cf != 0) |
| 584 | { |
| 585 | /* It's possible for the display table to specify |
| 586 | a face code that is out of range. Use 0 in that case. */ |
| 587 | if (cf < 0 || cf >= FRAME_N_COMPUTED_FACES (f) |
| 588 | || FRAME_COMPUTED_FACES (f) [cf] == 0) |
| 589 | cf = 0; |
| 590 | |
| 591 | if (cf == 1) |
| 592 | face = FRAME_MODE_LINE_FACE (f); |
| 593 | else |
| 594 | face = intern_face (f, FRAME_COMPUTED_FACES (f) [cf]); |
| 595 | font = FACE_FONT (face); |
| 596 | gc = FACE_GC (face); |
| 597 | } |
| 598 | |
| 599 | /* Then comes the distinction between modeline and normal text. */ |
| 600 | else if (hl == 0) |
| 601 | ; |
| 602 | else if (hl == 1) |
| 603 | { |
| 604 | face = FRAME_MODE_LINE_FACE (f); |
| 605 | font = FACE_FONT (face); |
| 606 | gc = FACE_GC (face); |
| 607 | } |
| 608 | |
| 609 | #define FACE_DEFAULT (~0) |
| 610 | |
| 611 | /* Now override that if the cursor's on this character. */ |
| 612 | if (hl == 2) |
| 613 | { |
| 614 | if ((!face->font |
| 615 | || (int) face->font == FACE_DEFAULT |
| 616 | || face->font == f->display.x->font) |
| 617 | && face->background == f->display.x->background_pixel |
| 618 | && face->foreground == f->display.x->foreground_pixel) |
| 619 | { |
| 620 | gc = f->display.x->cursor_gc; |
| 621 | } |
| 622 | /* Cursor on non-default face: must merge. */ |
| 623 | else |
| 624 | { |
| 625 | XGCValues xgcv; |
| 626 | unsigned long mask; |
| 627 | |
| 628 | xgcv.background = f->display.x->cursor_pixel; |
| 629 | xgcv.foreground = face->background; |
| 630 | /* If the glyph would be invisible, |
| 631 | try a different foreground. */ |
| 632 | if (xgcv.foreground == xgcv.background) |
| 633 | xgcv.foreground = face->foreground; |
| 634 | if (xgcv.foreground == xgcv.background) |
| 635 | xgcv.foreground = f->display.x->cursor_foreground_pixel; |
| 636 | if (xgcv.foreground == xgcv.background) |
| 637 | xgcv.foreground = face->foreground; |
| 638 | /* Make sure the cursor is distinct from text in this face. */ |
| 639 | if (xgcv.background == face->background |
| 640 | && xgcv.foreground == face->foreground) |
| 641 | { |
| 642 | xgcv.background = face->foreground; |
| 643 | xgcv.foreground = face->background; |
| 644 | } |
| 645 | xgcv.font = face->font->fid; |
| 646 | xgcv.graphics_exposures = 0; |
| 647 | mask = GCForeground | GCBackground | GCFont | GCGraphicsExposures; |
| 648 | if (scratch_cursor_gc) |
| 649 | XChangeGC (x_current_display, scratch_cursor_gc, mask, &xgcv); |
| 650 | else |
| 651 | scratch_cursor_gc = |
| 652 | XCreateGC (x_current_display, window, mask, &xgcv); |
| 653 | gc = scratch_cursor_gc; |
| 654 | #if 0 |
| 655 | /* If this code is restored, it must also reset to the default stipple |
| 656 | if necessary. */ |
| 657 | if (face->stipple && face->stipple != FACE_DEFAULT) |
| 658 | XSetStipple (x_current_display, gc, face->stipple); |
| 659 | #endif |
| 660 | } |
| 661 | } |
| 662 | |
| 663 | if ((int) font == FACE_DEFAULT) |
| 664 | font = f->display.x->font; |
| 665 | |
| 666 | if (just_foreground) |
| 667 | XDrawString (x_current_display, window, gc, |
| 668 | left, top + FONT_BASE (font), buf, len); |
| 669 | else |
| 670 | { |
| 671 | XDrawImageString (x_current_display, window, gc, |
| 672 | left, top + FONT_BASE (font), buf, len); |
| 673 | /* Clear the rest of the line's height. */ |
| 674 | if (f->display.x->line_height != FONT_HEIGHT (font)) |
| 675 | XClearArea (x_current_display, window, left, |
| 676 | top + FONT_HEIGHT (font), |
| 677 | FONT_WIDTH (font) * len, |
| 678 | /* This is how many pixels of height |
| 679 | we have to clear. */ |
| 680 | f->display.x->line_height - FONT_HEIGHT (font), |
| 681 | False); |
| 682 | } |
| 683 | |
| 684 | #if 0 /* Doesn't work, because it uses FRAME_CURRENT_GLYPHS, |
| 685 | which often is not up to date yet. */ |
| 686 | if (!just_foreground) |
| 687 | { |
| 688 | if (left == orig_left) |
| 689 | redraw_previous_char (f, PIXEL_TO_CHAR_COL (f, left), |
| 690 | PIXEL_TO_CHAR_ROW (f, top), hl == 1); |
| 691 | if (n == 0) |
| 692 | redraw_following_char (f, PIXEL_TO_CHAR_COL (f, left + len * FONT_WIDTH (font)), |
| 693 | PIXEL_TO_CHAR_ROW (f, top), hl == 1); |
| 694 | } |
| 695 | #endif |
| 696 | |
| 697 | /* We should probably check for XA_UNDERLINE_POSITION and |
| 698 | XA_UNDERLINE_THICKNESS properties on the font, but let's |
| 699 | just get the thing working, and come back to that. */ |
| 700 | { |
| 701 | int underline_position = 1; |
| 702 | |
| 703 | if (font->descent <= underline_position) |
| 704 | underline_position = font->descent - 1; |
| 705 | |
| 706 | if (face->underline) |
| 707 | XFillRectangle (x_current_display, FRAME_X_WINDOW (f), |
| 708 | FACE_GC (face), |
| 709 | left, (top |
| 710 | + FONT_BASE (font) |
| 711 | + underline_position), |
| 712 | len * FONT_WIDTH (font), 1); |
| 713 | } |
| 714 | |
| 715 | left += len * FONT_WIDTH (font); |
| 716 | } |
| 717 | } |
| 718 | } |
| 719 | #endif /* 1 */ |
| 720 | |
| 721 | #if 0 |
| 722 | /* This is the old single-face code. */ |
| 723 | |
| 724 | static void |
| 725 | dumpglyphs (f, left, top, gp, n, hl, font) |
| 726 | struct frame *f; |
| 727 | int left, top; |
| 728 | register GLYPH *gp; /* Points to first GLYPH. */ |
| 729 | register int n; /* Number of glyphs to display. */ |
| 730 | int hl; |
| 731 | FONT_TYPE *font; |
| 732 | { |
| 733 | register int len; |
| 734 | Window window = FRAME_X_WINDOW (f); |
| 735 | GC drawing_gc = (hl == 2 ? f->display.x->cursor_gc |
| 736 | : (hl ? f->display.x->reverse_gc |
| 737 | : f->display.x->normal_gc)); |
| 738 | |
| 739 | if (sizeof (GLYPH) == sizeof (XChar2b)) |
| 740 | XDrawImageString16 (x_current_display, window, drawing_gc, |
| 741 | left, top + FONT_BASE (font), (XChar2b *) gp, n); |
| 742 | else if (sizeof (GLYPH) == sizeof (unsigned char)) |
| 743 | XDrawImageString (x_current_display, window, drawing_gc, |
| 744 | left, top + FONT_BASE (font), (char *) gp, n); |
| 745 | else |
| 746 | /* What size of glyph ARE you using? And does X have a function to |
| 747 | draw them? */ |
| 748 | abort (); |
| 749 | } |
| 750 | #endif |
| 751 | \f |
| 752 | /* Output some text at the nominal frame cursor position. |
| 753 | Advance the cursor over the text. |
| 754 | Output LEN glyphs at START. |
| 755 | |
| 756 | `highlight', set up by XTreassert_line_highlight or XTchange_line_highlight, |
| 757 | controls the pixel values used for foreground and background. */ |
| 758 | |
| 759 | static |
| 760 | XTwrite_glyphs (start, len) |
| 761 | register GLYPH *start; |
| 762 | int len; |
| 763 | { |
| 764 | register int temp_length; |
| 765 | int mask; |
| 766 | struct frame *f; |
| 767 | |
| 768 | BLOCK_INPUT; |
| 769 | |
| 770 | f = updating_frame; |
| 771 | if (f == 0) |
| 772 | { |
| 773 | f = selected_frame; |
| 774 | /* If not within an update, |
| 775 | output at the frame's visible cursor. */ |
| 776 | curs_x = f->cursor_x; |
| 777 | curs_y = f->cursor_y; |
| 778 | } |
| 779 | |
| 780 | dumpglyphs (f, |
| 781 | CHAR_TO_PIXEL_COL (f, curs_x), |
| 782 | CHAR_TO_PIXEL_ROW (f, curs_y), |
| 783 | start, len, highlight, 0); |
| 784 | |
| 785 | /* If we drew on top of the cursor, note that it is turned off. */ |
| 786 | if (curs_y == f->phys_cursor_y |
| 787 | && curs_x <= f->phys_cursor_x |
| 788 | && curs_x + len > f->phys_cursor_x) |
| 789 | f->phys_cursor_x = -1; |
| 790 | |
| 791 | if (updating_frame == 0) |
| 792 | { |
| 793 | f->cursor_x += len; |
| 794 | x_display_cursor (f, 1); |
| 795 | f->cursor_x -= len; |
| 796 | } |
| 797 | else |
| 798 | curs_x += len; |
| 799 | |
| 800 | UNBLOCK_INPUT; |
| 801 | } |
| 802 | \f |
| 803 | /* Clear to the end of the line. |
| 804 | Erase the current text line from the nominal cursor position (inclusive) |
| 805 | to column FIRST_UNUSED (exclusive). The idea is that everything |
| 806 | from FIRST_UNUSED onward is already erased. */ |
| 807 | |
| 808 | static int |
| 809 | XTclear_end_of_line (first_unused) |
| 810 | register int first_unused; |
| 811 | { |
| 812 | struct frame *f = updating_frame; |
| 813 | int mask; |
| 814 | |
| 815 | if (f == 0) |
| 816 | abort (); |
| 817 | |
| 818 | if (curs_y < 0 || curs_y >= f->height) |
| 819 | return; |
| 820 | if (first_unused <= 0) |
| 821 | return; |
| 822 | |
| 823 | if (first_unused >= f->width) |
| 824 | first_unused = f->width; |
| 825 | |
| 826 | BLOCK_INPUT; |
| 827 | |
| 828 | /* Notice if the cursor will be cleared by this operation. */ |
| 829 | if (curs_y == f->phys_cursor_y |
| 830 | && curs_x <= f->phys_cursor_x |
| 831 | && f->phys_cursor_x < first_unused) |
| 832 | f->phys_cursor_x = -1; |
| 833 | |
| 834 | XClearArea (x_current_display, FRAME_X_WINDOW (f), |
| 835 | CHAR_TO_PIXEL_COL (f, curs_x), |
| 836 | CHAR_TO_PIXEL_ROW (f, curs_y), |
| 837 | FONT_WIDTH (f->display.x->font) * (first_unused - curs_x), |
| 838 | f->display.x->line_height, False); |
| 839 | #if 0 |
| 840 | redraw_previous_char (f, curs_x, curs_y, highlight); |
| 841 | #endif |
| 842 | |
| 843 | UNBLOCK_INPUT; |
| 844 | } |
| 845 | |
| 846 | static |
| 847 | XTclear_frame () |
| 848 | { |
| 849 | int mask; |
| 850 | struct frame *f = updating_frame; |
| 851 | |
| 852 | if (f == 0) |
| 853 | f = selected_frame; |
| 854 | |
| 855 | f->phys_cursor_x = -1; /* Cursor not visible. */ |
| 856 | curs_x = 0; /* Nominal cursor position is top left. */ |
| 857 | curs_y = 0; |
| 858 | |
| 859 | BLOCK_INPUT; |
| 860 | |
| 861 | XClear (FRAME_X_WINDOW (f)); |
| 862 | |
| 863 | /* We have to clear the scroll bars, too. If we have changed |
| 864 | colors or something like that, then they should be notified. */ |
| 865 | x_scroll_bar_clear (f); |
| 866 | |
| 867 | XFlushQueue (); |
| 868 | UNBLOCK_INPUT; |
| 869 | } |
| 870 | \f |
| 871 | #if 0 |
| 872 | /* This currently does not work because FRAME_CURRENT_GLYPHS doesn't |
| 873 | always contain the right glyphs to use. |
| 874 | |
| 875 | It also needs to be changed to look at the details of the font and |
| 876 | see whether there is really overlap, and do nothing when there is |
| 877 | not. This can use font_char_overlap_left and font_char_overlap_right, |
| 878 | but just how to use them is not clear. */ |
| 879 | |
| 880 | /* Erase the character (if any) at the position just before X, Y in frame F, |
| 881 | then redraw it and the character before it. |
| 882 | This is necessary when we erase starting at X, |
| 883 | in case the character after X overlaps into the one before X. |
| 884 | Call this function with input blocked. */ |
| 885 | |
| 886 | static void |
| 887 | redraw_previous_char (f, x, y, highlight_flag) |
| 888 | FRAME_PTR f; |
| 889 | int x, y; |
| 890 | int highlight_flag; |
| 891 | { |
| 892 | /* Erase the character before the new ones, in case |
| 893 | what was here before overlaps it. |
| 894 | Reoutput that character, and the previous character |
| 895 | (in case the previous character overlaps it). */ |
| 896 | if (x > 0) |
| 897 | { |
| 898 | int start_x = x - 2; |
| 899 | if (start_x < 0) |
| 900 | start_x = 0; |
| 901 | XClearArea (x_current_display, FRAME_X_WINDOW (f), |
| 902 | CHAR_TO_PIXEL_COL (f, x - 1), |
| 903 | CHAR_TO_PIXEL_ROW (f, y), |
| 904 | FONT_WIDTH (f->display.x->font), |
| 905 | f->display.x->line_height, False); |
| 906 | |
| 907 | dumpglyphs (f, CHAR_TO_PIXEL_COL (f, start_x), |
| 908 | CHAR_TO_PIXEL_ROW (f, y), |
| 909 | &FRAME_CURRENT_GLYPHS (f)->glyphs[y][start_x], |
| 910 | x - start_x, highlight_flag, 1); |
| 911 | } |
| 912 | } |
| 913 | |
| 914 | /* Erase the character (if any) at the position X, Y in frame F, |
| 915 | then redraw it and the character after it. |
| 916 | This is necessary when we erase endng at X, |
| 917 | in case the character after X overlaps into the one before X. |
| 918 | Call this function with input blocked. */ |
| 919 | |
| 920 | static void |
| 921 | redraw_following_char (f, x, y, highlight_flag) |
| 922 | FRAME_PTR f; |
| 923 | int x, y; |
| 924 | int highlight_flag; |
| 925 | { |
| 926 | int limit = FRAME_CURRENT_GLYPHS (f)->used[y]; |
| 927 | /* Erase the character after the new ones, in case |
| 928 | what was here before overlaps it. |
| 929 | Reoutput that character, and the following character |
| 930 | (in case the following character overlaps it). */ |
| 931 | if (x < limit |
| 932 | && FRAME_CURRENT_GLYPHS (f)->glyphs[y][x] != SPACEGLYPH) |
| 933 | { |
| 934 | int end_x = x + 2; |
| 935 | if (end_x > limit) |
| 936 | end_x = limit; |
| 937 | XClearArea (x_current_display, FRAME_X_WINDOW (f), |
| 938 | CHAR_TO_PIXEL_COL (f, x), |
| 939 | CHAR_TO_PIXEL_ROW (f, y), |
| 940 | FONT_WIDTH (f->display.x->font), |
| 941 | f->display.x->line_height, False); |
| 942 | |
| 943 | dumpglyphs (f, CHAR_TO_PIXEL_COL (f, x), |
| 944 | CHAR_TO_PIXEL_ROW (f, y), |
| 945 | &FRAME_CURRENT_GLYPHS (f)->glyphs[y][x], |
| 946 | end_x - x, highlight_flag, 1); |
| 947 | } |
| 948 | } |
| 949 | #endif /* 0 */ |
| 950 | \f |
| 951 | #if 0 /* Not in use yet */ |
| 952 | |
| 953 | /* Return 1 if character C in font F extends past its left edge. */ |
| 954 | |
| 955 | static int |
| 956 | font_char_overlap_left (font, c) |
| 957 | XFontStruct *font; |
| 958 | int c; |
| 959 | { |
| 960 | XCharStruct *s; |
| 961 | |
| 962 | /* Find the bounding-box info for C. */ |
| 963 | if (font->per_char == 0) |
| 964 | s = &font->max_bounds; |
| 965 | else |
| 966 | { |
| 967 | int rowlen = font->max_char_or_byte2 - font->min_char_or_byte2 + 1; |
| 968 | int row, within; |
| 969 | |
| 970 | /* Decode char into row number (byte 1) and code within row (byte 2). */ |
| 971 | row = c >> 8; |
| 972 | within = c & 0177; |
| 973 | if (!(within >= font->min_char_or_byte2 |
| 974 | && within <= font->max_char_or_byte2 |
| 975 | && row >= font->min_byte1 |
| 976 | && row <= font->max_byte1)) |
| 977 | { |
| 978 | /* If char is out of range, try the font's default char instead. */ |
| 979 | c = font->default_char; |
| 980 | row = c >> (INTBITS - 8); |
| 981 | within = c & 0177; |
| 982 | } |
| 983 | if (!(within >= font->min_char_or_byte2 |
| 984 | && within <= font->max_char_or_byte2 |
| 985 | && row >= font->min_byte1 |
| 986 | && row <= font->max_byte1)) |
| 987 | /* Still out of range means this char does not overlap. */ |
| 988 | return 0; |
| 989 | else |
| 990 | /* We found the info for this char. */ |
| 991 | s = (font->per_char + (within - font->min_char_or_byte2) |
| 992 | + row * rowlen); |
| 993 | } |
| 994 | |
| 995 | return (s && s->lbearing < 0); |
| 996 | } |
| 997 | |
| 998 | /* Return 1 if character C in font F extends past its right edge. */ |
| 999 | |
| 1000 | static int |
| 1001 | font_char_overlap_right (font, c) |
| 1002 | XFontStruct *font; |
| 1003 | int c; |
| 1004 | { |
| 1005 | XCharStruct *s; |
| 1006 | |
| 1007 | /* Find the bounding-box info for C. */ |
| 1008 | if (font->per_char == 0) |
| 1009 | s = &font->max_bounds; |
| 1010 | else |
| 1011 | { |
| 1012 | int rowlen = font->max_char_or_byte2 - font->min_char_or_byte2 + 1; |
| 1013 | int row, within; |
| 1014 | |
| 1015 | /* Decode char into row number (byte 1) and code within row (byte 2). */ |
| 1016 | row = c >> 8; |
| 1017 | within = c & 0177; |
| 1018 | if (!(within >= font->min_char_or_byte2 |
| 1019 | && within <= font->max_char_or_byte2 |
| 1020 | && row >= font->min_byte1 |
| 1021 | && row <= font->max_byte1)) |
| 1022 | { |
| 1023 | /* If char is out of range, try the font's default char instead. */ |
| 1024 | c = font->default_char; |
| 1025 | row = c >> (INTBITS - 8); |
| 1026 | within = c & 0177; |
| 1027 | } |
| 1028 | if (!(within >= font->min_char_or_byte2 |
| 1029 | && within <= font->max_char_or_byte2 |
| 1030 | && row >= font->min_byte1 |
| 1031 | && row <= font->max_byte1)) |
| 1032 | /* Still out of range means this char does not overlap. */ |
| 1033 | return 0; |
| 1034 | else |
| 1035 | /* We found the info for this char. */ |
| 1036 | s = (font->per_char + (within - font->min_char_or_byte2) |
| 1037 | + row * rowlen); |
| 1038 | } |
| 1039 | |
| 1040 | return (s && s->rbearing >= s->width); |
| 1041 | } |
| 1042 | #endif /* 0 */ |
| 1043 | \f |
| 1044 | /* Invert the middle quarter of the frame for .15 sec. */ |
| 1045 | |
| 1046 | /* We use the select system call to do the waiting, so we have to make sure |
| 1047 | it's available. If it isn't, we just won't do visual bells. */ |
| 1048 | #if defined (HAVE_TIMEVAL) && defined (HAVE_SELECT) |
| 1049 | |
| 1050 | /* Subtract the `struct timeval' values X and Y, |
| 1051 | storing the result in RESULT. |
| 1052 | Return 1 if the difference is negative, otherwise 0. */ |
| 1053 | |
| 1054 | static int |
| 1055 | timeval_subtract (result, x, y) |
| 1056 | struct timeval *result, x, y; |
| 1057 | { |
| 1058 | /* Perform the carry for the later subtraction by updating y. |
| 1059 | This is safer because on some systems |
| 1060 | the tv_sec member is unsigned. */ |
| 1061 | if (x.tv_usec < y.tv_usec) |
| 1062 | { |
| 1063 | int nsec = (y.tv_usec - x.tv_usec) / 1000000 + 1; |
| 1064 | y.tv_usec -= 1000000 * nsec; |
| 1065 | y.tv_sec += nsec; |
| 1066 | } |
| 1067 | if (x.tv_usec - y.tv_usec > 1000000) |
| 1068 | { |
| 1069 | int nsec = (y.tv_usec - x.tv_usec) / 1000000; |
| 1070 | y.tv_usec += 1000000 * nsec; |
| 1071 | y.tv_sec -= nsec; |
| 1072 | } |
| 1073 | |
| 1074 | /* Compute the time remaining to wait. tv_usec is certainly positive. */ |
| 1075 | result->tv_sec = x.tv_sec - y.tv_sec; |
| 1076 | result->tv_usec = x.tv_usec - y.tv_usec; |
| 1077 | |
| 1078 | /* Return indication of whether the result should be considered negative. */ |
| 1079 | return x.tv_sec < y.tv_sec; |
| 1080 | } |
| 1081 | |
| 1082 | XTflash (f) |
| 1083 | struct frame *f; |
| 1084 | { |
| 1085 | BLOCK_INPUT; |
| 1086 | |
| 1087 | { |
| 1088 | GC gc; |
| 1089 | |
| 1090 | /* Create a GC that will use the GXxor function to flip foreground pixels |
| 1091 | into background pixels. */ |
| 1092 | { |
| 1093 | XGCValues values; |
| 1094 | |
| 1095 | values.function = GXxor; |
| 1096 | values.foreground = (f->display.x->foreground_pixel |
| 1097 | ^ f->display.x->background_pixel); |
| 1098 | |
| 1099 | gc = XCreateGC (x_current_display, FRAME_X_WINDOW (f), |
| 1100 | GCFunction | GCForeground, &values); |
| 1101 | } |
| 1102 | |
| 1103 | { |
| 1104 | int width = PIXEL_WIDTH (f); |
| 1105 | int height = PIXEL_HEIGHT (f); |
| 1106 | |
| 1107 | XFillRectangle (x_current_display, FRAME_X_WINDOW (f), gc, |
| 1108 | width/4, height/4, width/2, height/2); |
| 1109 | XFlush (x_current_display); |
| 1110 | |
| 1111 | { |
| 1112 | struct timeval wakeup, now; |
| 1113 | |
| 1114 | EMACS_GET_TIME (wakeup); |
| 1115 | |
| 1116 | /* Compute time to wait until, propagating carry from usecs. */ |
| 1117 | wakeup.tv_usec += 150000; |
| 1118 | wakeup.tv_sec += (wakeup.tv_usec / 1000000); |
| 1119 | wakeup.tv_usec %= 1000000; |
| 1120 | |
| 1121 | /* Keep waiting until past the time wakeup. */ |
| 1122 | while (1) |
| 1123 | { |
| 1124 | struct timeval timeout; |
| 1125 | |
| 1126 | EMACS_GET_TIME (timeout); |
| 1127 | |
| 1128 | /* In effect, timeout = wakeup - timeout. |
| 1129 | Break if result would be negative. */ |
| 1130 | if (timeval_subtract (&timeout, wakeup, timeout)) |
| 1131 | break; |
| 1132 | |
| 1133 | /* Try to wait that long--but we might wake up sooner. */ |
| 1134 | select (0, 0, 0, 0, &timeout); |
| 1135 | } |
| 1136 | } |
| 1137 | |
| 1138 | XFillRectangle (x_current_display, FRAME_X_WINDOW (f), gc, |
| 1139 | width/4, height/4, width/2, height/2); |
| 1140 | XFreeGC (x_current_display, gc); |
| 1141 | XFlush (x_current_display); |
| 1142 | } |
| 1143 | } |
| 1144 | |
| 1145 | UNBLOCK_INPUT; |
| 1146 | } |
| 1147 | |
| 1148 | #endif |
| 1149 | |
| 1150 | |
| 1151 | /* Make audible bell. */ |
| 1152 | |
| 1153 | #define XRINGBELL XBell (x_current_display, 0) |
| 1154 | |
| 1155 | XTring_bell () |
| 1156 | { |
| 1157 | if (x_current_display == 0) |
| 1158 | return; |
| 1159 | |
| 1160 | #if defined (HAVE_TIMEVAL) && defined (HAVE_SELECT) |
| 1161 | if (visible_bell) |
| 1162 | XTflash (selected_frame); |
| 1163 | else |
| 1164 | #endif |
| 1165 | { |
| 1166 | BLOCK_INPUT; |
| 1167 | XRINGBELL; |
| 1168 | XFlushQueue (); |
| 1169 | UNBLOCK_INPUT; |
| 1170 | } |
| 1171 | } |
| 1172 | \f |
| 1173 | /* Insert and delete character. |
| 1174 | These are not supposed to be used because we are supposed to turn |
| 1175 | off the feature of using them. */ |
| 1176 | |
| 1177 | static |
| 1178 | XTinsert_glyphs (start, len) |
| 1179 | register char *start; |
| 1180 | register int len; |
| 1181 | { |
| 1182 | abort (); |
| 1183 | } |
| 1184 | |
| 1185 | static |
| 1186 | XTdelete_glyphs (n) |
| 1187 | register int n; |
| 1188 | { |
| 1189 | abort (); |
| 1190 | } |
| 1191 | \f |
| 1192 | /* Specify how many text lines, from the top of the window, |
| 1193 | should be affected by insert-lines and delete-lines operations. |
| 1194 | This, and those operations, are used only within an update |
| 1195 | that is bounded by calls to XTupdate_begin and XTupdate_end. */ |
| 1196 | |
| 1197 | static |
| 1198 | XTset_terminal_window (n) |
| 1199 | register int n; |
| 1200 | { |
| 1201 | if (updating_frame == 0) |
| 1202 | abort (); |
| 1203 | |
| 1204 | if ((n <= 0) || (n > updating_frame->height)) |
| 1205 | flexlines = updating_frame->height; |
| 1206 | else |
| 1207 | flexlines = n; |
| 1208 | } |
| 1209 | \f |
| 1210 | /* Perform an insert-lines operation. |
| 1211 | Insert N lines at a vertical position curs_y. */ |
| 1212 | |
| 1213 | static void |
| 1214 | stufflines (n) |
| 1215 | register int n; |
| 1216 | { |
| 1217 | register int topregion, bottomregion; |
| 1218 | register int length, newtop, mask; |
| 1219 | register struct frame *f = updating_frame; |
| 1220 | int intborder = f->display.x->internal_border_width; |
| 1221 | |
| 1222 | if (curs_y >= flexlines) |
| 1223 | return; |
| 1224 | |
| 1225 | topregion = curs_y; |
| 1226 | bottomregion = flexlines - (n + 1); |
| 1227 | newtop = topregion + n; |
| 1228 | length = (bottomregion - topregion) + 1; |
| 1229 | |
| 1230 | if ((length > 0) && (newtop <= flexlines)) |
| 1231 | XCopyArea (x_current_display, FRAME_X_WINDOW (f), |
| 1232 | FRAME_X_WINDOW (f), f->display.x->normal_gc, |
| 1233 | intborder, CHAR_TO_PIXEL_ROW (f, topregion), |
| 1234 | f->width * FONT_WIDTH (f->display.x->font), |
| 1235 | length * f->display.x->line_height, intborder, |
| 1236 | CHAR_TO_PIXEL_ROW (f, newtop)); |
| 1237 | |
| 1238 | newtop = min (newtop, (flexlines - 1)); |
| 1239 | length = newtop - topregion; |
| 1240 | if (length > 0) |
| 1241 | XClearArea (x_current_display, FRAME_X_WINDOW (f), intborder, |
| 1242 | CHAR_TO_PIXEL_ROW (f, topregion), |
| 1243 | f->width * FONT_WIDTH (f->display.x->font), |
| 1244 | n * f->display.x->line_height, False); |
| 1245 | } |
| 1246 | |
| 1247 | /* Perform a delete-lines operation, deleting N lines |
| 1248 | at a vertical position curs_y. */ |
| 1249 | |
| 1250 | static void |
| 1251 | scraplines (n) |
| 1252 | register int n; |
| 1253 | { |
| 1254 | int mask; |
| 1255 | register struct frame *f = updating_frame; |
| 1256 | int intborder = f->display.x->internal_border_width; |
| 1257 | |
| 1258 | if (curs_y >= flexlines) |
| 1259 | return; |
| 1260 | |
| 1261 | if ((curs_y + n) >= flexlines) |
| 1262 | { |
| 1263 | if (flexlines >= (curs_y + 1)) |
| 1264 | XClearArea (x_current_display, FRAME_X_WINDOW (f), intborder, |
| 1265 | CHAR_TO_PIXEL_ROW (f, curs_y), |
| 1266 | f->width * FONT_WIDTH (f->display.x->font), |
| 1267 | (flexlines - curs_y) * f->display.x->line_height, False); |
| 1268 | } |
| 1269 | else |
| 1270 | { |
| 1271 | XCopyArea (x_current_display, FRAME_X_WINDOW (f), |
| 1272 | FRAME_X_WINDOW (f), f->display.x->normal_gc, |
| 1273 | intborder, |
| 1274 | CHAR_TO_PIXEL_ROW (f, curs_y + n), |
| 1275 | f->width * FONT_WIDTH (f->display.x->font), |
| 1276 | (flexlines - (curs_y + n)) * f->display.x->line_height, |
| 1277 | intborder, CHAR_TO_PIXEL_ROW (f, curs_y)); |
| 1278 | XClearArea (x_current_display, FRAME_X_WINDOW (f), |
| 1279 | intborder, |
| 1280 | CHAR_TO_PIXEL_ROW (f, flexlines - n), |
| 1281 | f->width * FONT_WIDTH (f->display.x->font), |
| 1282 | n * f->display.x->line_height, False); |
| 1283 | } |
| 1284 | } |
| 1285 | |
| 1286 | /* Perform an insert-lines or delete-lines operation, |
| 1287 | inserting N lines or deleting -N lines at vertical position VPOS. */ |
| 1288 | |
| 1289 | XTins_del_lines (vpos, n) |
| 1290 | int vpos, n; |
| 1291 | { |
| 1292 | if (updating_frame == 0) |
| 1293 | abort (); |
| 1294 | |
| 1295 | /* Hide the cursor. */ |
| 1296 | x_display_cursor (updating_frame, 0); |
| 1297 | |
| 1298 | XTcursor_to (vpos, 0); |
| 1299 | |
| 1300 | BLOCK_INPUT; |
| 1301 | if (n >= 0) |
| 1302 | stufflines (n); |
| 1303 | else |
| 1304 | scraplines (-n); |
| 1305 | XFlushQueue (); |
| 1306 | UNBLOCK_INPUT; |
| 1307 | } |
| 1308 | \f |
| 1309 | /* Support routines for exposure events. */ |
| 1310 | static void clear_cursor (); |
| 1311 | |
| 1312 | /* Output into a rectangle of an X-window (for frame F) |
| 1313 | the characters in f->phys_lines that overlap that rectangle. |
| 1314 | TOP and LEFT are the position of the upper left corner of the rectangle. |
| 1315 | ROWS and COLS are the size of the rectangle. |
| 1316 | Call this function with input blocked. */ |
| 1317 | |
| 1318 | static void |
| 1319 | dumprectangle (f, left, top, cols, rows) |
| 1320 | struct frame *f; |
| 1321 | register int left, top, cols, rows; |
| 1322 | { |
| 1323 | register struct frame_glyphs *active_frame = FRAME_CURRENT_GLYPHS (f); |
| 1324 | int cursor_cleared = 0; |
| 1325 | int bottom, right; |
| 1326 | register int y; |
| 1327 | |
| 1328 | if (FRAME_GARBAGED_P (f)) |
| 1329 | return; |
| 1330 | |
| 1331 | /* Express rectangle as four edges, instead of position-and-size. */ |
| 1332 | bottom = top + rows; |
| 1333 | right = left + cols; |
| 1334 | |
| 1335 | /* Convert rectangle edges in pixels to edges in chars. |
| 1336 | Round down for left and top, up for right and bottom. */ |
| 1337 | top = PIXEL_TO_CHAR_ROW (f, top); |
| 1338 | left = PIXEL_TO_CHAR_COL (f, left); |
| 1339 | bottom += (f->display.x->line_height - 1); |
| 1340 | right += (FONT_WIDTH (f->display.x->font) - 1); |
| 1341 | bottom = PIXEL_TO_CHAR_ROW (f, bottom); |
| 1342 | right = PIXEL_TO_CHAR_COL (f, right); |
| 1343 | |
| 1344 | /* Clip the rectangle to what can be visible. */ |
| 1345 | if (left < 0) |
| 1346 | left = 0; |
| 1347 | if (top < 0) |
| 1348 | top = 0; |
| 1349 | if (right > f->width) |
| 1350 | right = f->width; |
| 1351 | if (bottom > f->height) |
| 1352 | bottom = f->height; |
| 1353 | |
| 1354 | /* Get size in chars of the rectangle. */ |
| 1355 | cols = right - left; |
| 1356 | rows = bottom - top; |
| 1357 | |
| 1358 | /* If rectangle has zero area, return. */ |
| 1359 | if (rows <= 0) return; |
| 1360 | if (cols <= 0) return; |
| 1361 | |
| 1362 | /* Turn off the cursor if it is in the rectangle. |
| 1363 | We will turn it back on afterward. */ |
| 1364 | if ((f->phys_cursor_x >= left) && (f->phys_cursor_x < right) |
| 1365 | && (f->phys_cursor_y >= top) && (f->phys_cursor_y < bottom)) |
| 1366 | { |
| 1367 | clear_cursor (f); |
| 1368 | cursor_cleared = 1; |
| 1369 | } |
| 1370 | |
| 1371 | /* Display the text in the rectangle, one text line at a time. */ |
| 1372 | |
| 1373 | for (y = top; y < bottom; y++) |
| 1374 | { |
| 1375 | GLYPH *line = &active_frame->glyphs[y][left]; |
| 1376 | |
| 1377 | if (! active_frame->enable[y] || left > active_frame->used[y]) |
| 1378 | continue; |
| 1379 | |
| 1380 | dumpglyphs (f, |
| 1381 | CHAR_TO_PIXEL_COL (f, left), |
| 1382 | CHAR_TO_PIXEL_ROW (f, y), |
| 1383 | line, min (cols, active_frame->used[y] - left), |
| 1384 | active_frame->highlight[y], 0); |
| 1385 | } |
| 1386 | |
| 1387 | /* Turn the cursor on if we turned it off. */ |
| 1388 | |
| 1389 | if (cursor_cleared) |
| 1390 | x_display_cursor (f, 1); |
| 1391 | } |
| 1392 | \f |
| 1393 | static void |
| 1394 | frame_highlight (frame) |
| 1395 | struct frame *frame; |
| 1396 | { |
| 1397 | /* We used to only do this if Vx_no_window_manager was non-nil, but |
| 1398 | the ICCCM (section 4.1.6) says that the window's border pixmap |
| 1399 | and border pixel are window attributes which are "private to the |
| 1400 | client", so we can always change it to whatever we want. */ |
| 1401 | BLOCK_INPUT; |
| 1402 | XSetWindowBorder (x_current_display, FRAME_X_WINDOW (frame), |
| 1403 | frame->display.x->border_pixel); |
| 1404 | UNBLOCK_INPUT; |
| 1405 | x_display_cursor (frame, 1); |
| 1406 | } |
| 1407 | |
| 1408 | static void |
| 1409 | frame_unhighlight (frame) |
| 1410 | struct frame *frame; |
| 1411 | { |
| 1412 | /* We used to only do this if Vx_no_window_manager was non-nil, but |
| 1413 | the ICCCM (section 4.1.6) says that the window's border pixmap |
| 1414 | and border pixel are window attributes which are "private to the |
| 1415 | client", so we can always change it to whatever we want. */ |
| 1416 | BLOCK_INPUT; |
| 1417 | XSetWindowBorderPixmap (x_current_display, FRAME_X_WINDOW (frame), |
| 1418 | frame->display.x->border_tile); |
| 1419 | UNBLOCK_INPUT; |
| 1420 | x_display_cursor (frame, 1); |
| 1421 | } |
| 1422 | |
| 1423 | static void XTframe_rehighlight (); |
| 1424 | |
| 1425 | /* The focus has changed. Update the frames as necessary to reflect |
| 1426 | the new situation. Note that we can't change the selected frame |
| 1427 | here, because the lisp code we are interrupting might become confused. |
| 1428 | Each event gets marked with the frame in which it occurred, so the |
| 1429 | lisp code can tell when the switch took place by examining the events. */ |
| 1430 | |
| 1431 | static void |
| 1432 | x_new_focus_frame (frame) |
| 1433 | struct frame *frame; |
| 1434 | { |
| 1435 | struct frame *old_focus = x_focus_frame; |
| 1436 | int events_enqueued = 0; |
| 1437 | |
| 1438 | if (frame != x_focus_frame) |
| 1439 | { |
| 1440 | /* Set this before calling other routines, so that they see |
| 1441 | the correct value of x_focus_frame. */ |
| 1442 | x_focus_frame = frame; |
| 1443 | |
| 1444 | if (old_focus && old_focus->auto_lower) |
| 1445 | x_lower_frame (old_focus); |
| 1446 | |
| 1447 | #if 0 |
| 1448 | selected_frame = frame; |
| 1449 | XSET (XWINDOW (selected_frame->selected_window)->frame, |
| 1450 | Lisp_Frame, selected_frame); |
| 1451 | Fselect_window (selected_frame->selected_window); |
| 1452 | choose_minibuf_frame (); |
| 1453 | #endif /* ! 0 */ |
| 1454 | |
| 1455 | if (x_focus_frame && x_focus_frame->auto_raise) |
| 1456 | pending_autoraise_frame = x_focus_frame; |
| 1457 | else |
| 1458 | pending_autoraise_frame = 0; |
| 1459 | } |
| 1460 | |
| 1461 | XTframe_rehighlight (); |
| 1462 | } |
| 1463 | |
| 1464 | |
| 1465 | /* The focus has changed, or we have redirected a frame's focus to |
| 1466 | another frame (this happens when a frame uses a surrogate |
| 1467 | minibuffer frame). Shift the highlight as appropriate. */ |
| 1468 | static void |
| 1469 | XTframe_rehighlight () |
| 1470 | { |
| 1471 | struct frame *old_highlight = x_highlight_frame; |
| 1472 | |
| 1473 | if (x_focus_frame) |
| 1474 | { |
| 1475 | x_highlight_frame = |
| 1476 | ((XGCTYPE (FRAME_FOCUS_FRAME (x_focus_frame)) == Lisp_Frame) |
| 1477 | ? XFRAME (FRAME_FOCUS_FRAME (x_focus_frame)) |
| 1478 | : x_focus_frame); |
| 1479 | if (! FRAME_LIVE_P (x_highlight_frame)) |
| 1480 | { |
| 1481 | FRAME_FOCUS_FRAME (x_focus_frame) = Qnil; |
| 1482 | x_highlight_frame = x_focus_frame; |
| 1483 | } |
| 1484 | } |
| 1485 | else |
| 1486 | x_highlight_frame = 0; |
| 1487 | |
| 1488 | if (x_highlight_frame != old_highlight) |
| 1489 | { |
| 1490 | if (old_highlight) |
| 1491 | frame_unhighlight (old_highlight); |
| 1492 | if (x_highlight_frame) |
| 1493 | frame_highlight (x_highlight_frame); |
| 1494 | } |
| 1495 | } |
| 1496 | \f |
| 1497 | /* Keyboard processing - modifier keys, vendor-specific keysyms, etc. */ |
| 1498 | |
| 1499 | /* Which modifier keys are on which modifier bits? |
| 1500 | |
| 1501 | With each keystroke, X returns eight bits indicating which modifier |
| 1502 | keys were held down when the key was pressed. The interpretation |
| 1503 | of the top five modifier bits depends on what keys are attached |
| 1504 | to them. If the Meta_L and Meta_R keysyms are on mod5, then mod5 |
| 1505 | is the meta bit. |
| 1506 | |
| 1507 | x_meta_mod_mask is a mask containing the bits used for the meta key. |
| 1508 | It may have more than one bit set, if more than one modifier bit |
| 1509 | has meta keys on it. Basically, if EVENT is a KeyPress event, |
| 1510 | the meta key is pressed if (EVENT.state & x_meta_mod_mask) != 0. |
| 1511 | |
| 1512 | x_shift_lock_mask is LockMask if the XK_Shift_Lock keysym is on the |
| 1513 | lock modifier bit, or zero otherwise. Non-alphabetic keys should |
| 1514 | only be affected by the lock modifier bit if XK_Shift_Lock is in |
| 1515 | use; XK_Caps_Lock should only affect alphabetic keys. With this |
| 1516 | arrangement, the lock modifier should shift the character if |
| 1517 | (EVENT.state & x_shift_lock_mask) != 0. */ |
| 1518 | static int x_meta_mod_mask, x_shift_lock_mask; |
| 1519 | |
| 1520 | /* These are like x_meta_mod_mask, but for different modifiers. */ |
| 1521 | static int x_alt_mod_mask, x_super_mod_mask, x_hyper_mod_mask; |
| 1522 | |
| 1523 | /* Initialize mode_switch_bit and modifier_meaning. */ |
| 1524 | static void |
| 1525 | x_find_modifier_meanings () |
| 1526 | { |
| 1527 | int min_code, max_code; |
| 1528 | KeySym *syms; |
| 1529 | int syms_per_code; |
| 1530 | XModifierKeymap *mods; |
| 1531 | |
| 1532 | x_meta_mod_mask = 0; |
| 1533 | x_shift_lock_mask = 0; |
| 1534 | x_alt_mod_mask = 0; |
| 1535 | x_super_mod_mask = 0; |
| 1536 | x_hyper_mod_mask = 0; |
| 1537 | |
| 1538 | #ifdef HAVE_X11R4 |
| 1539 | XDisplayKeycodes (x_current_display, &min_code, &max_code); |
| 1540 | #else |
| 1541 | min_code = x_current_display->min_keycode; |
| 1542 | max_code = x_current_display->max_keycode; |
| 1543 | #endif |
| 1544 | |
| 1545 | syms = XGetKeyboardMapping (x_current_display, |
| 1546 | min_code, max_code - min_code + 1, |
| 1547 | &syms_per_code); |
| 1548 | mods = XGetModifierMapping (x_current_display); |
| 1549 | |
| 1550 | /* Scan the modifier table to see which modifier bits the Meta and |
| 1551 | Alt keysyms are on. */ |
| 1552 | { |
| 1553 | int row, col; /* The row and column in the modifier table. */ |
| 1554 | |
| 1555 | for (row = 3; row < 8; row++) |
| 1556 | for (col = 0; col < mods->max_keypermod; col++) |
| 1557 | { |
| 1558 | KeyCode code = |
| 1559 | mods->modifiermap[(row * mods->max_keypermod) + col]; |
| 1560 | |
| 1561 | /* Zeroes are used for filler. Skip them. */ |
| 1562 | if (code == 0) |
| 1563 | continue; |
| 1564 | |
| 1565 | /* Are any of this keycode's keysyms a meta key? */ |
| 1566 | { |
| 1567 | int code_col; |
| 1568 | |
| 1569 | for (code_col = 0; code_col < syms_per_code; code_col++) |
| 1570 | { |
| 1571 | int sym = syms[((code - min_code) * syms_per_code) + code_col]; |
| 1572 | |
| 1573 | switch (sym) |
| 1574 | { |
| 1575 | case XK_Meta_L: |
| 1576 | case XK_Meta_R: |
| 1577 | x_meta_mod_mask |= (1 << row); |
| 1578 | break; |
| 1579 | |
| 1580 | case XK_Alt_L: |
| 1581 | case XK_Alt_R: |
| 1582 | x_alt_mod_mask |= (1 << row); |
| 1583 | break; |
| 1584 | |
| 1585 | case XK_Hyper_L: |
| 1586 | case XK_Hyper_R: |
| 1587 | x_hyper_mod_mask |= (1 << row); |
| 1588 | break; |
| 1589 | |
| 1590 | case XK_Super_L: |
| 1591 | case XK_Super_R: |
| 1592 | x_super_mod_mask |= (1 << row); |
| 1593 | break; |
| 1594 | |
| 1595 | case XK_Shift_Lock: |
| 1596 | /* Ignore this if it's not on the lock modifier. */ |
| 1597 | if ((1 << row) == LockMask) |
| 1598 | x_shift_lock_mask = LockMask; |
| 1599 | break; |
| 1600 | } |
| 1601 | } |
| 1602 | } |
| 1603 | } |
| 1604 | } |
| 1605 | |
| 1606 | /* If we couldn't find any meta keys, accept any alt keys as meta keys. */ |
| 1607 | if (! x_meta_mod_mask) |
| 1608 | { |
| 1609 | x_meta_mod_mask = x_alt_mod_mask; |
| 1610 | x_alt_mod_mask = 0; |
| 1611 | } |
| 1612 | |
| 1613 | /* If some keys are both alt and meta, |
| 1614 | make them just meta, not alt. */ |
| 1615 | if (x_alt_mod_mask & x_meta_mod_mask) |
| 1616 | { |
| 1617 | x_alt_mod_mask &= ~x_meta_mod_mask; |
| 1618 | } |
| 1619 | |
| 1620 | XFree ((char *) syms); |
| 1621 | XFreeModifiermap (mods); |
| 1622 | } |
| 1623 | |
| 1624 | /* Convert between the modifier bits X uses and the modifier bits |
| 1625 | Emacs uses. */ |
| 1626 | static unsigned int |
| 1627 | x_x_to_emacs_modifiers (state) |
| 1628 | unsigned int state; |
| 1629 | { |
| 1630 | return ( ((state & (ShiftMask | x_shift_lock_mask)) ? shift_modifier : 0) |
| 1631 | | ((state & ControlMask) ? ctrl_modifier : 0) |
| 1632 | | ((state & x_meta_mod_mask) ? meta_modifier : 0) |
| 1633 | | ((state & x_alt_mod_mask) ? alt_modifier : 0) |
| 1634 | | ((state & x_super_mod_mask) ? super_modifier : 0) |
| 1635 | | ((state & x_hyper_mod_mask) ? hyper_modifier : 0)); |
| 1636 | } |
| 1637 | |
| 1638 | static unsigned int |
| 1639 | x_emacs_to_x_modifiers (state) |
| 1640 | unsigned int state; |
| 1641 | { |
| 1642 | return ( ((state & alt_modifier) ? x_alt_mod_mask : 0) |
| 1643 | | ((state & super_modifier) ? x_super_mod_mask : 0) |
| 1644 | | ((state & hyper_modifier) ? x_hyper_mod_mask : 0) |
| 1645 | | ((state & shift_modifier) ? ShiftMask : 0) |
| 1646 | | ((state & ctrl_modifier) ? ControlMask : 0) |
| 1647 | | ((state & meta_modifier) ? x_meta_mod_mask : 0)); |
| 1648 | } |
| 1649 | \f |
| 1650 | /* Mouse clicks and mouse movement. Rah. */ |
| 1651 | |
| 1652 | /* Given a pixel position (PIX_X, PIX_Y) on the frame F, return |
| 1653 | glyph co-ordinates in (*X, *Y). Set *BOUNDS to the rectangle |
| 1654 | that the glyph at X, Y occupies, if BOUNDS != 0. |
| 1655 | If NOCLIP is nonzero, do not force the value into range. */ |
| 1656 | |
| 1657 | void |
| 1658 | pixel_to_glyph_coords (f, pix_x, pix_y, x, y, bounds, noclip) |
| 1659 | FRAME_PTR f; |
| 1660 | register int pix_x, pix_y; |
| 1661 | register int *x, *y; |
| 1662 | XRectangle *bounds; |
| 1663 | int noclip; |
| 1664 | { |
| 1665 | /* Arrange for the division in PIXEL_TO_CHAR_COL etc. to round down |
| 1666 | even for negative values. */ |
| 1667 | if (pix_x < 0) |
| 1668 | pix_x -= FONT_WIDTH ((f)->display.x->font) - 1; |
| 1669 | if (pix_y < 0) |
| 1670 | pix_y -= (f)->display.x->line_height - 1; |
| 1671 | |
| 1672 | pix_x = PIXEL_TO_CHAR_COL (f, pix_x); |
| 1673 | pix_y = PIXEL_TO_CHAR_ROW (f, pix_y); |
| 1674 | |
| 1675 | if (bounds) |
| 1676 | { |
| 1677 | bounds->width = FONT_WIDTH (f->display.x->font); |
| 1678 | bounds->height = f->display.x->line_height; |
| 1679 | bounds->x = CHAR_TO_PIXEL_COL (f, pix_x); |
| 1680 | bounds->y = CHAR_TO_PIXEL_ROW (f, pix_y); |
| 1681 | } |
| 1682 | |
| 1683 | if (!noclip) |
| 1684 | { |
| 1685 | if (pix_x < 0) |
| 1686 | pix_x = 0; |
| 1687 | else if (pix_x > f->width) |
| 1688 | pix_x = f->width; |
| 1689 | |
| 1690 | if (pix_y < 0) |
| 1691 | pix_y = 0; |
| 1692 | else if (pix_y > f->height) |
| 1693 | pix_y = f->height; |
| 1694 | } |
| 1695 | |
| 1696 | *x = pix_x; |
| 1697 | *y = pix_y; |
| 1698 | } |
| 1699 | |
| 1700 | void |
| 1701 | glyph_to_pixel_coords (f, x, y, pix_x, pix_y) |
| 1702 | FRAME_PTR f; |
| 1703 | register int x, y; |
| 1704 | register int *pix_x, *pix_y; |
| 1705 | { |
| 1706 | *pix_x = CHAR_TO_PIXEL_COL (f, x); |
| 1707 | *pix_y = CHAR_TO_PIXEL_ROW (f, y); |
| 1708 | } |
| 1709 | |
| 1710 | /* Prepare a mouse-event in *RESULT for placement in the input queue. |
| 1711 | |
| 1712 | If the event is a button press, then note that we have grabbed |
| 1713 | the mouse. */ |
| 1714 | |
| 1715 | static Lisp_Object |
| 1716 | construct_mouse_click (result, event, f) |
| 1717 | struct input_event *result; |
| 1718 | XButtonEvent *event; |
| 1719 | struct frame *f; |
| 1720 | { |
| 1721 | /* Make the event type no_event; we'll change that when we decide |
| 1722 | otherwise. */ |
| 1723 | result->kind = mouse_click; |
| 1724 | result->code = event->button - Button1; |
| 1725 | result->timestamp = event->time; |
| 1726 | result->modifiers = (x_x_to_emacs_modifiers (event->state) |
| 1727 | | (event->type == ButtonRelease |
| 1728 | ? up_modifier |
| 1729 | : down_modifier)); |
| 1730 | |
| 1731 | { |
| 1732 | int row, column; |
| 1733 | |
| 1734 | #if 0 |
| 1735 | pixel_to_glyph_coords (f, event->x, event->y, &column, &row, NULL, 0); |
| 1736 | XFASTINT (result->x) = column; |
| 1737 | XFASTINT (result->y) = row; |
| 1738 | #endif |
| 1739 | XSET (result->x, Lisp_Int, event->x); |
| 1740 | XSET (result->y, Lisp_Int, event->y); |
| 1741 | XSET (result->frame_or_window, Lisp_Frame, f); |
| 1742 | } |
| 1743 | } |
| 1744 | |
| 1745 | /* Prepare a menu-event in *RESULT for placement in the input queue. */ |
| 1746 | |
| 1747 | static Lisp_Object |
| 1748 | construct_menu_click (result, event, f) |
| 1749 | struct input_event *result; |
| 1750 | XButtonEvent *event; |
| 1751 | struct frame *f; |
| 1752 | { |
| 1753 | /* Make the event type no_event; we'll change that when we decide |
| 1754 | otherwise. */ |
| 1755 | result->kind = mouse_click; |
| 1756 | XSET (result->code, Lisp_Int, event->button - Button1); |
| 1757 | result->timestamp = event->time; |
| 1758 | result->modifiers = (x_x_to_emacs_modifiers (event->state) |
| 1759 | | (event->type == ButtonRelease |
| 1760 | ? up_modifier |
| 1761 | : down_modifier)); |
| 1762 | |
| 1763 | XSET (result->x, Lisp_Int, event->x); |
| 1764 | XSET (result->y, Lisp_Int, -1); |
| 1765 | XSET (result->frame_or_window, Lisp_Frame, f); |
| 1766 | } |
| 1767 | \f |
| 1768 | /* Function to report a mouse movement to the mainstream Emacs code. |
| 1769 | The input handler calls this. |
| 1770 | |
| 1771 | We have received a mouse movement event, which is given in *event. |
| 1772 | If the mouse is over a different glyph than it was last time, tell |
| 1773 | the mainstream emacs code by setting mouse_moved. If not, ask for |
| 1774 | another motion event, so we can check again the next time it moves. */ |
| 1775 | |
| 1776 | static void |
| 1777 | note_mouse_movement (frame, event) |
| 1778 | FRAME_PTR frame; |
| 1779 | XMotionEvent *event; |
| 1780 | |
| 1781 | { |
| 1782 | last_mouse_movement_time = event->time; |
| 1783 | |
| 1784 | if (event->window != FRAME_X_WINDOW (frame)) |
| 1785 | { |
| 1786 | mouse_moved = 1; |
| 1787 | last_mouse_scroll_bar = Qnil; |
| 1788 | |
| 1789 | note_mouse_highlight (frame, -1, -1); |
| 1790 | |
| 1791 | /* Ask for another mouse motion event. */ |
| 1792 | { |
| 1793 | int dummy; |
| 1794 | Window dummy_window; |
| 1795 | |
| 1796 | XQueryPointer (event->display, FRAME_X_WINDOW (frame), |
| 1797 | &dummy_window, &dummy_window, |
| 1798 | &dummy, &dummy, &dummy, &dummy, |
| 1799 | (unsigned int *) &dummy); |
| 1800 | } |
| 1801 | } |
| 1802 | |
| 1803 | /* Has the mouse moved off the glyph it was on at the last sighting? */ |
| 1804 | else if (event->x < last_mouse_glyph.x |
| 1805 | || event->x >= last_mouse_glyph.x + last_mouse_glyph.width |
| 1806 | || event->y < last_mouse_glyph.y |
| 1807 | || event->y >= last_mouse_glyph.y + last_mouse_glyph.height) |
| 1808 | { |
| 1809 | mouse_moved = 1; |
| 1810 | last_mouse_scroll_bar = Qnil; |
| 1811 | |
| 1812 | note_mouse_highlight (frame, event->x, event->y); |
| 1813 | |
| 1814 | /* Ask for another mouse motion event. */ |
| 1815 | { |
| 1816 | int dummy; |
| 1817 | Window dummy_window; |
| 1818 | |
| 1819 | XQueryPointer (event->display, FRAME_X_WINDOW (frame), |
| 1820 | &dummy_window, &dummy_window, |
| 1821 | &dummy, &dummy, &dummy, &dummy, |
| 1822 | (unsigned int *) &dummy); |
| 1823 | } |
| 1824 | } |
| 1825 | else |
| 1826 | { |
| 1827 | /* It's on the same glyph. Call XQueryPointer so we'll get an |
| 1828 | event the next time the mouse moves and we can see if it's |
| 1829 | *still* on the same glyph. */ |
| 1830 | int dummy; |
| 1831 | Window dummy_window; |
| 1832 | |
| 1833 | XQueryPointer (event->display, FRAME_X_WINDOW (frame), |
| 1834 | &dummy_window, &dummy_window, |
| 1835 | &dummy, &dummy, &dummy, &dummy, |
| 1836 | (unsigned int *) &dummy); |
| 1837 | } |
| 1838 | } |
| 1839 | |
| 1840 | /* This is used for debugging, to turn off note_mouse_highlight. */ |
| 1841 | static int disable_mouse_highlight; |
| 1842 | |
| 1843 | /* Take proper action when the mouse has moved to position X, Y on frame F |
| 1844 | as regards highlighting characters that have mouse-face properties. |
| 1845 | Also dehighlighting chars where the mouse was before. |
| 1846 | X and Y can be negative or out of range. */ |
| 1847 | |
| 1848 | static void |
| 1849 | note_mouse_highlight (f, x, y) |
| 1850 | FRAME_PTR f; |
| 1851 | { |
| 1852 | int row, column, portion; |
| 1853 | XRectangle new_glyph; |
| 1854 | Lisp_Object window; |
| 1855 | struct window *w; |
| 1856 | |
| 1857 | if (disable_mouse_highlight) |
| 1858 | return; |
| 1859 | |
| 1860 | mouse_face_mouse_x = x; |
| 1861 | mouse_face_mouse_y = y; |
| 1862 | mouse_face_mouse_frame = f; |
| 1863 | |
| 1864 | if (mouse_face_defer) |
| 1865 | return; |
| 1866 | |
| 1867 | if (gc_in_progress) |
| 1868 | { |
| 1869 | mouse_face_deferred_gc = 1; |
| 1870 | return; |
| 1871 | } |
| 1872 | |
| 1873 | /* Find out which glyph the mouse is on. */ |
| 1874 | pixel_to_glyph_coords (f, x, y, &column, &row, |
| 1875 | &new_glyph, x_mouse_grabbed); |
| 1876 | |
| 1877 | /* Which window is that in? */ |
| 1878 | window = window_from_coordinates (f, column, row, &portion); |
| 1879 | w = XWINDOW (window); |
| 1880 | |
| 1881 | /* If we were displaying active text in another window, clear that. */ |
| 1882 | if (! EQ (window, mouse_face_window)) |
| 1883 | clear_mouse_face (); |
| 1884 | |
| 1885 | /* Are we in a window whose display is up to date? |
| 1886 | And verify the buffer's text has not changed. */ |
| 1887 | if (WINDOWP (window) && portion == 0 && row >= 0 && column >= 0 |
| 1888 | && row < FRAME_HEIGHT (f) && column < FRAME_WIDTH (f) |
| 1889 | && EQ (w->window_end_valid, w->buffer) |
| 1890 | && w->last_modified == BUF_MODIFF (XBUFFER (w->buffer))) |
| 1891 | { |
| 1892 | int *ptr = FRAME_CURRENT_GLYPHS (f)->charstarts[row]; |
| 1893 | int i, pos; |
| 1894 | |
| 1895 | /* Find which buffer position the mouse corresponds to. */ |
| 1896 | for (i = column; i >= 0; i--) |
| 1897 | if (ptr[i] > 0) |
| 1898 | break; |
| 1899 | pos = ptr[i]; |
| 1900 | /* Is it outside the displayed active region (if any)? */ |
| 1901 | if (pos <= 0) |
| 1902 | clear_mouse_face (); |
| 1903 | else if (! (EQ (window, mouse_face_window) |
| 1904 | && row >= mouse_face_beg_row |
| 1905 | && row <= mouse_face_end_row |
| 1906 | && (row > mouse_face_beg_row || column >= mouse_face_beg_col) |
| 1907 | && (row < mouse_face_end_row || column < mouse_face_end_col |
| 1908 | || mouse_face_past_end))) |
| 1909 | { |
| 1910 | Lisp_Object mouse_face, overlay, position; |
| 1911 | Lisp_Object *overlay_vec; |
| 1912 | int len, noverlays, ignor1; |
| 1913 | struct buffer *obuf; |
| 1914 | int obegv, ozv; |
| 1915 | |
| 1916 | /* If we get an out-of-range value, return now; avoid an error. */ |
| 1917 | if (pos > BUF_Z (XBUFFER (w->buffer))) |
| 1918 | return; |
| 1919 | |
| 1920 | /* Make the window's buffer temporarily current for |
| 1921 | overlays_at and compute_char_face. */ |
| 1922 | obuf = current_buffer; |
| 1923 | current_buffer = XBUFFER (w->buffer); |
| 1924 | obegv = BEGV; |
| 1925 | ozv = ZV; |
| 1926 | BEGV = BEG; |
| 1927 | ZV = Z; |
| 1928 | |
| 1929 | /* Yes. Clear the display of the old active region, if any. */ |
| 1930 | clear_mouse_face (); |
| 1931 | |
| 1932 | /* Is this char mouse-active? */ |
| 1933 | XSET (position, Lisp_Int, pos); |
| 1934 | |
| 1935 | len = 10; |
| 1936 | overlay_vec = (Lisp_Object *) xmalloc (len * sizeof (Lisp_Object)); |
| 1937 | |
| 1938 | /* Put all the overlays we want in a vector in overlay_vec. |
| 1939 | Store the length in len. */ |
| 1940 | noverlays = overlays_at (XINT (pos), 1, &overlay_vec, &len, &ignor1); |
| 1941 | noverlays = sort_overlays (overlay_vec, noverlays, w); |
| 1942 | |
| 1943 | /* Find the highest priority overlay that has a mouse-face prop. */ |
| 1944 | overlay = Qnil; |
| 1945 | for (i = 0; i < noverlays; i++) |
| 1946 | { |
| 1947 | mouse_face = Foverlay_get (overlay_vec[i], Qmouse_face); |
| 1948 | if (!NILP (mouse_face)) |
| 1949 | { |
| 1950 | overlay = overlay_vec[i]; |
| 1951 | break; |
| 1952 | } |
| 1953 | } |
| 1954 | free (overlay_vec); |
| 1955 | /* If no overlay applies, get a text property. */ |
| 1956 | if (NILP (overlay)) |
| 1957 | mouse_face = Fget_text_property (position, Qmouse_face, w->buffer); |
| 1958 | |
| 1959 | /* Handle the overlay case. */ |
| 1960 | if (! NILP (overlay)) |
| 1961 | { |
| 1962 | /* Find the range of text around this char that |
| 1963 | should be active. */ |
| 1964 | Lisp_Object before, after; |
| 1965 | int ignore; |
| 1966 | |
| 1967 | before = Foverlay_start (overlay); |
| 1968 | after = Foverlay_end (overlay); |
| 1969 | /* Record this as the current active region. */ |
| 1970 | fast_find_position (window, before, &mouse_face_beg_col, |
| 1971 | &mouse_face_beg_row); |
| 1972 | mouse_face_past_end |
| 1973 | = !fast_find_position (window, after, &mouse_face_end_col, |
| 1974 | &mouse_face_end_row); |
| 1975 | mouse_face_window = window; |
| 1976 | mouse_face_face_id = compute_char_face (f, w, pos, 0, 0, |
| 1977 | &ignore, pos + 1, 1); |
| 1978 | |
| 1979 | /* Display it as active. */ |
| 1980 | show_mouse_face (1); |
| 1981 | } |
| 1982 | /* Handle the text property case. */ |
| 1983 | else if (! NILP (mouse_face)) |
| 1984 | { |
| 1985 | /* Find the range of text around this char that |
| 1986 | should be active. */ |
| 1987 | Lisp_Object before, after, beginning, end; |
| 1988 | int ignore; |
| 1989 | |
| 1990 | beginning = Fmarker_position (w->start); |
| 1991 | XSET (end, Lisp_Int, |
| 1992 | (BUF_Z (XBUFFER (w->buffer)) |
| 1993 | - XFASTINT (w->window_end_pos))); |
| 1994 | before |
| 1995 | = Fprevious_single_property_change (make_number (pos + 1), |
| 1996 | Qmouse_face, |
| 1997 | w->buffer, beginning); |
| 1998 | after |
| 1999 | = Fnext_single_property_change (position, Qmouse_face, |
| 2000 | w->buffer, end); |
| 2001 | /* Record this as the current active region. */ |
| 2002 | fast_find_position (window, before, &mouse_face_beg_col, |
| 2003 | &mouse_face_beg_row); |
| 2004 | mouse_face_past_end |
| 2005 | = !fast_find_position (window, after, &mouse_face_end_col, |
| 2006 | &mouse_face_end_row); |
| 2007 | mouse_face_window = window; |
| 2008 | mouse_face_face_id |
| 2009 | = compute_char_face (f, w, pos, 0, 0, |
| 2010 | &ignore, pos + 1, 1); |
| 2011 | |
| 2012 | /* Display it as active. */ |
| 2013 | show_mouse_face (1); |
| 2014 | } |
| 2015 | BEGV = obegv; |
| 2016 | ZV = ozv; |
| 2017 | current_buffer = obuf; |
| 2018 | } |
| 2019 | } |
| 2020 | } |
| 2021 | \f |
| 2022 | /* Find the row and column of position POS in window WINDOW. |
| 2023 | Store them in *COLUMNP and *ROWP. |
| 2024 | This assumes display in WINDOW is up to date. |
| 2025 | If POS is above start of WINDOW, return coords |
| 2026 | of start of first screen line. |
| 2027 | If POS is after end of WINDOW, return coords of end of last screen line. |
| 2028 | |
| 2029 | Value is 1 if POS is in range, 0 if it was off screen. */ |
| 2030 | |
| 2031 | static int |
| 2032 | fast_find_position (window, pos, columnp, rowp) |
| 2033 | Lisp_Object window; |
| 2034 | int pos; |
| 2035 | int *columnp, *rowp; |
| 2036 | { |
| 2037 | struct window *w = XWINDOW (window); |
| 2038 | FRAME_PTR f = XFRAME (WINDOW_FRAME (w)); |
| 2039 | int i; |
| 2040 | int row = 0; |
| 2041 | int left = w->left; |
| 2042 | int top = w->top; |
| 2043 | int height = XFASTINT (w->height) - ! MINI_WINDOW_P (w); |
| 2044 | int width = window_internal_width (w); |
| 2045 | int *charstarts; |
| 2046 | int lastcol; |
| 2047 | |
| 2048 | /* Find the right row. */ |
| 2049 | for (i = 0; |
| 2050 | i < height; |
| 2051 | i++) |
| 2052 | { |
| 2053 | int linestart = FRAME_CURRENT_GLYPHS (f)->charstarts[top + i][left]; |
| 2054 | if (linestart > pos) |
| 2055 | break; |
| 2056 | if (linestart > 0) |
| 2057 | row = i; |
| 2058 | } |
| 2059 | |
| 2060 | /* Find the right column with in it. */ |
| 2061 | charstarts = FRAME_CURRENT_GLYPHS (f)->charstarts[top + row]; |
| 2062 | lastcol = left; |
| 2063 | for (i = 0; i < width; i++) |
| 2064 | { |
| 2065 | if (charstarts[left + i] == pos) |
| 2066 | { |
| 2067 | *rowp = row + top; |
| 2068 | *columnp = i + left; |
| 2069 | return 1; |
| 2070 | } |
| 2071 | else if (charstarts[left + i] > pos) |
| 2072 | break; |
| 2073 | else if (charstarts[left + i] > 0) |
| 2074 | lastcol = left + i; |
| 2075 | } |
| 2076 | |
| 2077 | *rowp = row + top; |
| 2078 | *columnp = lastcol; |
| 2079 | return 0; |
| 2080 | } |
| 2081 | |
| 2082 | /* Display the active region described by mouse_face_* |
| 2083 | in its mouse-face if HL > 0, in its normal face if HL = 0. */ |
| 2084 | |
| 2085 | static void |
| 2086 | show_mouse_face (hl) |
| 2087 | int hl; |
| 2088 | { |
| 2089 | struct window *w = XWINDOW (mouse_face_window); |
| 2090 | int width = window_internal_width (w); |
| 2091 | FRAME_PTR f = XFRAME (WINDOW_FRAME (w)); |
| 2092 | int i; |
| 2093 | int cursor_off = 0; |
| 2094 | int old_curs_x = curs_x; |
| 2095 | int old_curs_y = curs_y; |
| 2096 | |
| 2097 | /* Set these variables temporarily |
| 2098 | so that if we have to turn the cursor off and on again |
| 2099 | we will put it back at the same place. */ |
| 2100 | curs_x = f->phys_cursor_x; |
| 2101 | curs_y = f->phys_cursor_y; |
| 2102 | |
| 2103 | for (i = mouse_face_beg_row; i <= mouse_face_end_row; i++) |
| 2104 | { |
| 2105 | int column = (i == mouse_face_beg_row ? mouse_face_beg_col : w->left); |
| 2106 | int endcolumn = (i == mouse_face_end_row ? mouse_face_end_col : w->left + width); |
| 2107 | endcolumn = min (endcolumn, FRAME_CURRENT_GLYPHS (f)->used[i]); |
| 2108 | |
| 2109 | /* If the cursor's in the text we are about to rewrite, |
| 2110 | turn the cursor off. */ |
| 2111 | if (i == curs_y |
| 2112 | && curs_x >= mouse_face_beg_col - 1 && curs_x <= mouse_face_end_col) |
| 2113 | { |
| 2114 | x_display_cursor (f, 0); |
| 2115 | cursor_off = 1; |
| 2116 | } |
| 2117 | |
| 2118 | dumpglyphs (f, |
| 2119 | CHAR_TO_PIXEL_COL (f, column), |
| 2120 | CHAR_TO_PIXEL_ROW (f, i), |
| 2121 | FRAME_CURRENT_GLYPHS (f)->glyphs[i] + column, |
| 2122 | endcolumn - column, |
| 2123 | /* Highlight with mouse face if hl > 0. */ |
| 2124 | hl > 0 ? 3 : 0, 0); |
| 2125 | } |
| 2126 | |
| 2127 | /* If we turned the cursor off, turn it back on. */ |
| 2128 | if (cursor_off) |
| 2129 | x_display_cursor (f, 1); |
| 2130 | |
| 2131 | curs_x = old_curs_x; |
| 2132 | curs_y = old_curs_y; |
| 2133 | |
| 2134 | /* Change the mouse cursor according to the value of HL. */ |
| 2135 | if (hl > 0) |
| 2136 | XDefineCursor (XDISPLAY FRAME_X_WINDOW (f), f->display.x->cross_cursor); |
| 2137 | else |
| 2138 | XDefineCursor (XDISPLAY FRAME_X_WINDOW (f), f->display.x->text_cursor); |
| 2139 | } |
| 2140 | |
| 2141 | /* Clear out the mouse-highlighted active region. |
| 2142 | Redraw it unhighlighted first. */ |
| 2143 | |
| 2144 | static void |
| 2145 | clear_mouse_face () |
| 2146 | { |
| 2147 | if (! NILP (mouse_face_window)) |
| 2148 | show_mouse_face (0); |
| 2149 | |
| 2150 | mouse_face_beg_row = mouse_face_beg_col = -1; |
| 2151 | mouse_face_end_row = mouse_face_end_col = -1; |
| 2152 | mouse_face_window = Qnil; |
| 2153 | } |
| 2154 | \f |
| 2155 | static struct scroll_bar *x_window_to_scroll_bar (); |
| 2156 | static void x_scroll_bar_report_motion (); |
| 2157 | |
| 2158 | /* Return the current position of the mouse. |
| 2159 | |
| 2160 | If the mouse movement started in a scroll bar, set *f, *bar_window, |
| 2161 | and *part to the frame, window, and scroll bar part that the mouse |
| 2162 | is over. Set *x and *y to the portion and whole of the mouse's |
| 2163 | position on the scroll bar. |
| 2164 | |
| 2165 | If the mouse movement started elsewhere, set *f to the frame the |
| 2166 | mouse is on, *bar_window to nil, and *x and *y to the character cell |
| 2167 | the mouse is over. |
| 2168 | |
| 2169 | Set *time to the server timestamp for the time at which the mouse |
| 2170 | was at this position. |
| 2171 | |
| 2172 | Don't store anything if we don't have a valid set of values to report. |
| 2173 | |
| 2174 | This clears the mouse_moved flag, so we can wait for the next mouse |
| 2175 | movement. This also calls XQueryPointer, which will cause the |
| 2176 | server to give us another MotionNotify when the mouse moves |
| 2177 | again. */ |
| 2178 | |
| 2179 | static void |
| 2180 | XTmouse_position (f, bar_window, part, x, y, time) |
| 2181 | FRAME_PTR *f; |
| 2182 | Lisp_Object *bar_window; |
| 2183 | enum scroll_bar_part *part; |
| 2184 | Lisp_Object *x, *y; |
| 2185 | unsigned long *time; |
| 2186 | { |
| 2187 | FRAME_PTR f1; |
| 2188 | |
| 2189 | BLOCK_INPUT; |
| 2190 | |
| 2191 | if (! NILP (last_mouse_scroll_bar)) |
| 2192 | x_scroll_bar_report_motion (f, bar_window, part, x, y, time); |
| 2193 | else |
| 2194 | { |
| 2195 | Window root; |
| 2196 | int root_x, root_y; |
| 2197 | |
| 2198 | Window dummy_window; |
| 2199 | int dummy; |
| 2200 | |
| 2201 | mouse_moved = 0; |
| 2202 | last_mouse_scroll_bar = Qnil; |
| 2203 | |
| 2204 | /* Figure out which root window we're on. */ |
| 2205 | XQueryPointer (x_current_display, |
| 2206 | DefaultRootWindow (x_current_display), |
| 2207 | |
| 2208 | /* The root window which contains the pointer. */ |
| 2209 | &root, |
| 2210 | |
| 2211 | /* Trash which we can't trust if the pointer is on |
| 2212 | a different screen. */ |
| 2213 | &dummy_window, |
| 2214 | |
| 2215 | /* The position on that root window. */ |
| 2216 | &root_x, &root_y, |
| 2217 | |
| 2218 | /* More trash we can't trust. */ |
| 2219 | &dummy, &dummy, |
| 2220 | |
| 2221 | /* Modifier keys and pointer buttons, about which |
| 2222 | we don't care. */ |
| 2223 | (unsigned int *) &dummy); |
| 2224 | |
| 2225 | /* Now we have a position on the root; find the innermost window |
| 2226 | containing the pointer. */ |
| 2227 | { |
| 2228 | Window win, child; |
| 2229 | int win_x, win_y; |
| 2230 | int parent_x, parent_y; |
| 2231 | |
| 2232 | win = root; |
| 2233 | |
| 2234 | if (x_mouse_grabbed && last_mouse_frame |
| 2235 | && FRAME_LIVE_P (last_mouse_frame)) |
| 2236 | { |
| 2237 | /* If mouse was grabbed on a frame, give coords for that frame |
| 2238 | even if the mouse is now outside it. */ |
| 2239 | XTranslateCoordinates (x_current_display, |
| 2240 | |
| 2241 | /* From-window, to-window. */ |
| 2242 | root, FRAME_X_WINDOW (last_mouse_frame), |
| 2243 | |
| 2244 | /* From-position, to-position. */ |
| 2245 | root_x, root_y, &win_x, &win_y, |
| 2246 | |
| 2247 | /* Child of win. */ |
| 2248 | &child); |
| 2249 | f1 = last_mouse_frame; |
| 2250 | } |
| 2251 | else |
| 2252 | { |
| 2253 | while (1) |
| 2254 | { |
| 2255 | XTranslateCoordinates (x_current_display, |
| 2256 | |
| 2257 | /* From-window, to-window. */ |
| 2258 | root, win, |
| 2259 | |
| 2260 | /* From-position, to-position. */ |
| 2261 | root_x, root_y, &win_x, &win_y, |
| 2262 | |
| 2263 | /* Child of win. */ |
| 2264 | &child); |
| 2265 | |
| 2266 | if (child == None) |
| 2267 | break; |
| 2268 | |
| 2269 | win = child; |
| 2270 | parent_x = win_x; |
| 2271 | parent_y = win_y; |
| 2272 | } |
| 2273 | |
| 2274 | /* Now we know that: |
| 2275 | win is the innermost window containing the pointer |
| 2276 | (XTC says it has no child containing the pointer), |
| 2277 | win_x and win_y are the pointer's position in it |
| 2278 | (XTC did this the last time through), and |
| 2279 | parent_x and parent_y are the pointer's position in win's parent. |
| 2280 | (They are what win_x and win_y were when win was child. |
| 2281 | If win is the root window, it has no parent, and |
| 2282 | parent_{x,y} are invalid, but that's okay, because we'll |
| 2283 | never use them in that case.) */ |
| 2284 | |
| 2285 | /* Is win one of our frames? */ |
| 2286 | f1 = x_any_window_to_frame (win); |
| 2287 | } |
| 2288 | |
| 2289 | /* If not, is it one of our scroll bars? */ |
| 2290 | if (! f1) |
| 2291 | { |
| 2292 | struct scroll_bar *bar = x_window_to_scroll_bar (win); |
| 2293 | |
| 2294 | if (bar) |
| 2295 | { |
| 2296 | f1 = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); |
| 2297 | win_x = parent_x; |
| 2298 | win_y = parent_y; |
| 2299 | } |
| 2300 | } |
| 2301 | |
| 2302 | if (f1) |
| 2303 | { |
| 2304 | int ignore1, ignore2; |
| 2305 | |
| 2306 | /* Ok, we found a frame. Store all the values. */ |
| 2307 | |
| 2308 | pixel_to_glyph_coords (f1, win_x, win_y, &ignore1, &ignore2, |
| 2309 | &last_mouse_glyph, x_mouse_grabbed); |
| 2310 | |
| 2311 | *bar_window = Qnil; |
| 2312 | *part = 0; |
| 2313 | *f = f1; |
| 2314 | XSET (*x, Lisp_Int, win_x); |
| 2315 | XSET (*y, Lisp_Int, win_y); |
| 2316 | *time = last_mouse_movement_time; |
| 2317 | } |
| 2318 | } |
| 2319 | } |
| 2320 | |
| 2321 | UNBLOCK_INPUT; |
| 2322 | } |
| 2323 | \f |
| 2324 | /* Scroll bar support. */ |
| 2325 | |
| 2326 | /* Given an X window ID, find the struct scroll_bar which manages it. |
| 2327 | This can be called in GC, so we have to make sure to strip off mark |
| 2328 | bits. */ |
| 2329 | static struct scroll_bar * |
| 2330 | x_window_to_scroll_bar (window_id) |
| 2331 | Window window_id; |
| 2332 | { |
| 2333 | Lisp_Object tail, frame; |
| 2334 | |
| 2335 | for (tail = Vframe_list; |
| 2336 | XGCTYPE (tail) == Lisp_Cons; |
| 2337 | tail = XCONS (tail)->cdr) |
| 2338 | { |
| 2339 | Lisp_Object frame, bar, condemned; |
| 2340 | |
| 2341 | frame = XCONS (tail)->car; |
| 2342 | /* All elements of Vframe_list should be frames. */ |
| 2343 | if (XGCTYPE (frame) != Lisp_Frame) |
| 2344 | abort (); |
| 2345 | |
| 2346 | /* Scan this frame's scroll bar list for a scroll bar with the |
| 2347 | right window ID. */ |
| 2348 | condemned = FRAME_CONDEMNED_SCROLL_BARS (XFRAME (frame)); |
| 2349 | for (bar = FRAME_SCROLL_BARS (XFRAME (frame)); |
| 2350 | /* This trick allows us to search both the ordinary and |
| 2351 | condemned scroll bar lists with one loop. */ |
| 2352 | ! GC_NILP (bar) || (bar = condemned, |
| 2353 | condemned = Qnil, |
| 2354 | ! GC_NILP (bar)); |
| 2355 | bar = XSCROLL_BAR (bar)->next) |
| 2356 | if (SCROLL_BAR_X_WINDOW (XSCROLL_BAR (bar)) == window_id) |
| 2357 | return XSCROLL_BAR (bar); |
| 2358 | } |
| 2359 | |
| 2360 | return 0; |
| 2361 | } |
| 2362 | |
| 2363 | /* Open a new X window to serve as a scroll bar, and return the |
| 2364 | scroll bar vector for it. */ |
| 2365 | static struct scroll_bar * |
| 2366 | x_scroll_bar_create (window, top, left, width, height) |
| 2367 | struct window *window; |
| 2368 | int top, left, width, height; |
| 2369 | { |
| 2370 | FRAME_PTR frame = XFRAME (WINDOW_FRAME (window)); |
| 2371 | struct scroll_bar *bar = |
| 2372 | XSCROLL_BAR (Fmake_vector (make_number (SCROLL_BAR_VEC_SIZE), Qnil)); |
| 2373 | |
| 2374 | BLOCK_INPUT; |
| 2375 | |
| 2376 | { |
| 2377 | XSetWindowAttributes a; |
| 2378 | unsigned long mask; |
| 2379 | a.background_pixel = frame->display.x->background_pixel; |
| 2380 | a.event_mask = (ButtonPressMask | ButtonReleaseMask |
| 2381 | | ButtonMotionMask | PointerMotionHintMask |
| 2382 | | ExposureMask); |
| 2383 | a.cursor = x_vertical_scroll_bar_cursor; |
| 2384 | |
| 2385 | mask = (CWBackPixel | CWEventMask | CWCursor); |
| 2386 | |
| 2387 | #if 0 |
| 2388 | |
| 2389 | ac = 0; |
| 2390 | XtSetArg (al[ac], XtNx, left); ac++; |
| 2391 | XtSetArg (al[ac], XtNy, top); ac++; |
| 2392 | XtSetArg (al[ac], XtNwidth, width); ac++; |
| 2393 | XtSetArg (al[ac], XtNheight, height); ac++; |
| 2394 | XtSetArg (al[ac], XtNborderWidth, 0); ac++; |
| 2395 | sb_widget = XtCreateManagedWidget ("box", |
| 2396 | boxWidgetClass, |
| 2397 | frame->display.x->edit_widget, al, ac); |
| 2398 | SET_SCROLL_BAR_X_WINDOW |
| 2399 | (bar, sb_widget->core.window); |
| 2400 | #endif |
| 2401 | SET_SCROLL_BAR_X_WINDOW |
| 2402 | (bar, |
| 2403 | XCreateWindow (x_current_display, FRAME_X_WINDOW (frame), |
| 2404 | |
| 2405 | /* Position and size of scroll bar. */ |
| 2406 | left, top, width, height, |
| 2407 | |
| 2408 | /* Border width, depth, class, and visual. */ |
| 2409 | 0, CopyFromParent, CopyFromParent, CopyFromParent, |
| 2410 | |
| 2411 | /* Attributes. */ |
| 2412 | mask, &a)); |
| 2413 | } |
| 2414 | |
| 2415 | XSET (bar->window, Lisp_Window, window); |
| 2416 | XSET (bar->top, Lisp_Int, top); |
| 2417 | XSET (bar->left, Lisp_Int, left); |
| 2418 | XSET (bar->width, Lisp_Int, width); |
| 2419 | XSET (bar->height, Lisp_Int, height); |
| 2420 | XSET (bar->start, Lisp_Int, 0); |
| 2421 | XSET (bar->end, Lisp_Int, 0); |
| 2422 | bar->dragging = Qnil; |
| 2423 | |
| 2424 | /* Add bar to its frame's list of scroll bars. */ |
| 2425 | bar->next = FRAME_SCROLL_BARS (frame); |
| 2426 | bar->prev = Qnil; |
| 2427 | XSET (FRAME_SCROLL_BARS (frame), Lisp_Vector, bar); |
| 2428 | if (! NILP (bar->next)) |
| 2429 | XSET (XSCROLL_BAR (bar->next)->prev, Lisp_Vector, bar); |
| 2430 | |
| 2431 | XMapWindow (x_current_display, SCROLL_BAR_X_WINDOW (bar)); |
| 2432 | |
| 2433 | UNBLOCK_INPUT; |
| 2434 | |
| 2435 | return bar; |
| 2436 | } |
| 2437 | |
| 2438 | /* Draw BAR's handle in the proper position. |
| 2439 | If the handle is already drawn from START to END, don't bother |
| 2440 | redrawing it, unless REBUILD is non-zero; in that case, always |
| 2441 | redraw it. (REBUILD is handy for drawing the handle after expose |
| 2442 | events.) |
| 2443 | |
| 2444 | Normally, we want to constrain the start and end of the handle to |
| 2445 | fit inside its rectangle, but if the user is dragging the scroll bar |
| 2446 | handle, we want to let them drag it down all the way, so that the |
| 2447 | bar's top is as far down as it goes; otherwise, there's no way to |
| 2448 | move to the very end of the buffer. */ |
| 2449 | static void |
| 2450 | x_scroll_bar_set_handle (bar, start, end, rebuild) |
| 2451 | struct scroll_bar *bar; |
| 2452 | int start, end; |
| 2453 | int rebuild; |
| 2454 | { |
| 2455 | int dragging = ! NILP (bar->dragging); |
| 2456 | Window w = SCROLL_BAR_X_WINDOW (bar); |
| 2457 | GC gc = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)))->display.x->normal_gc; |
| 2458 | |
| 2459 | /* If the display is already accurate, do nothing. */ |
| 2460 | if (! rebuild |
| 2461 | && start == XINT (bar->start) |
| 2462 | && end == XINT (bar->end)) |
| 2463 | return; |
| 2464 | |
| 2465 | BLOCK_INPUT; |
| 2466 | |
| 2467 | { |
| 2468 | int inside_width = VERTICAL_SCROLL_BAR_INSIDE_WIDTH (XINT (bar->width)); |
| 2469 | int inside_height = VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (XINT (bar->height)); |
| 2470 | int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (XINT (bar->height)); |
| 2471 | |
| 2472 | /* Make sure the values are reasonable, and try to preserve |
| 2473 | the distance between start and end. */ |
| 2474 | { |
| 2475 | int length = end - start; |
| 2476 | |
| 2477 | if (start < 0) |
| 2478 | start = 0; |
| 2479 | else if (start > top_range) |
| 2480 | start = top_range; |
| 2481 | end = start + length; |
| 2482 | |
| 2483 | if (end < start) |
| 2484 | end = start; |
| 2485 | else if (end > top_range && ! dragging) |
| 2486 | end = top_range; |
| 2487 | } |
| 2488 | |
| 2489 | /* Store the adjusted setting in the scroll bar. */ |
| 2490 | XSET (bar->start, Lisp_Int, start); |
| 2491 | XSET (bar->end, Lisp_Int, end); |
| 2492 | |
| 2493 | /* Clip the end position, just for display. */ |
| 2494 | if (end > top_range) |
| 2495 | end = top_range; |
| 2496 | |
| 2497 | /* Draw bottom positions VERTICAL_SCROLL_BAR_MIN_HANDLE pixels |
| 2498 | below top positions, to make sure the handle is always at least |
| 2499 | that many pixels tall. */ |
| 2500 | end += VERTICAL_SCROLL_BAR_MIN_HANDLE; |
| 2501 | |
| 2502 | /* Draw the empty space above the handle. Note that we can't clear |
| 2503 | zero-height areas; that means "clear to end of window." */ |
| 2504 | if (0 < start) |
| 2505 | XClearArea (x_current_display, w, |
| 2506 | |
| 2507 | /* x, y, width, height, and exposures. */ |
| 2508 | VERTICAL_SCROLL_BAR_LEFT_BORDER, |
| 2509 | VERTICAL_SCROLL_BAR_TOP_BORDER, |
| 2510 | inside_width, start, |
| 2511 | False); |
| 2512 | |
| 2513 | /* Draw the handle itself. */ |
| 2514 | XFillRectangle (x_current_display, w, gc, |
| 2515 | |
| 2516 | /* x, y, width, height */ |
| 2517 | VERTICAL_SCROLL_BAR_LEFT_BORDER, |
| 2518 | VERTICAL_SCROLL_BAR_TOP_BORDER + start, |
| 2519 | inside_width, end - start); |
| 2520 | |
| 2521 | |
| 2522 | /* Draw the empty space below the handle. Note that we can't |
| 2523 | clear zero-height areas; that means "clear to end of window." */ |
| 2524 | if (end < inside_height) |
| 2525 | XClearArea (x_current_display, w, |
| 2526 | |
| 2527 | /* x, y, width, height, and exposures. */ |
| 2528 | VERTICAL_SCROLL_BAR_LEFT_BORDER, |
| 2529 | VERTICAL_SCROLL_BAR_TOP_BORDER + end, |
| 2530 | inside_width, inside_height - end, |
| 2531 | False); |
| 2532 | |
| 2533 | } |
| 2534 | |
| 2535 | UNBLOCK_INPUT; |
| 2536 | } |
| 2537 | |
| 2538 | /* Move a scroll bar around on the screen, to accommodate changing |
| 2539 | window configurations. */ |
| 2540 | static void |
| 2541 | x_scroll_bar_move (bar, top, left, width, height) |
| 2542 | struct scroll_bar *bar; |
| 2543 | int top, left, width, height; |
| 2544 | { |
| 2545 | BLOCK_INPUT; |
| 2546 | |
| 2547 | { |
| 2548 | XWindowChanges wc; |
| 2549 | unsigned int mask = 0; |
| 2550 | |
| 2551 | wc.x = left; |
| 2552 | wc.y = top; |
| 2553 | wc.width = width; |
| 2554 | wc.height = height; |
| 2555 | |
| 2556 | if (left != XINT (bar->left)) mask |= CWX; |
| 2557 | if (top != XINT (bar->top)) mask |= CWY; |
| 2558 | if (width != XINT (bar->width)) mask |= CWWidth; |
| 2559 | if (height != XINT (bar->height)) mask |= CWHeight; |
| 2560 | |
| 2561 | if (mask) |
| 2562 | XConfigureWindow (x_current_display, SCROLL_BAR_X_WINDOW (bar), |
| 2563 | mask, &wc); |
| 2564 | } |
| 2565 | |
| 2566 | XSET (bar->left, Lisp_Int, left); |
| 2567 | XSET (bar->top, Lisp_Int, top); |
| 2568 | XSET (bar->width, Lisp_Int, width); |
| 2569 | XSET (bar->height, Lisp_Int, height); |
| 2570 | |
| 2571 | UNBLOCK_INPUT; |
| 2572 | } |
| 2573 | |
| 2574 | /* Destroy the X window for BAR, and set its Emacs window's scroll bar |
| 2575 | to nil. */ |
| 2576 | static void |
| 2577 | x_scroll_bar_remove (bar) |
| 2578 | struct scroll_bar *bar; |
| 2579 | { |
| 2580 | FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); |
| 2581 | |
| 2582 | BLOCK_INPUT; |
| 2583 | |
| 2584 | /* Destroy the window. */ |
| 2585 | XDestroyWindow (x_current_display, SCROLL_BAR_X_WINDOW (bar)); |
| 2586 | |
| 2587 | /* Disassociate this scroll bar from its window. */ |
| 2588 | XWINDOW (bar->window)->vertical_scroll_bar = Qnil; |
| 2589 | |
| 2590 | UNBLOCK_INPUT; |
| 2591 | } |
| 2592 | |
| 2593 | /* Set the handle of the vertical scroll bar for WINDOW to indicate |
| 2594 | that we are displaying PORTION characters out of a total of WHOLE |
| 2595 | characters, starting at POSITION. If WINDOW has no scroll bar, |
| 2596 | create one. */ |
| 2597 | static void |
| 2598 | XTset_vertical_scroll_bar (window, portion, whole, position) |
| 2599 | struct window *window; |
| 2600 | int portion, whole, position; |
| 2601 | { |
| 2602 | FRAME_PTR f = XFRAME (WINDOW_FRAME (window)); |
| 2603 | int top = XINT (window->top); |
| 2604 | int left = WINDOW_VERTICAL_SCROLL_BAR_COLUMN (window); |
| 2605 | int height = WINDOW_VERTICAL_SCROLL_BAR_HEIGHT (window); |
| 2606 | |
| 2607 | /* Where should this scroll bar be, pixelwise? */ |
| 2608 | int pixel_top = CHAR_TO_PIXEL_ROW (f, top); |
| 2609 | int pixel_left = CHAR_TO_PIXEL_COL (f, left); |
| 2610 | int pixel_width = FRAME_SCROLL_BAR_PIXEL_WIDTH (f); |
| 2611 | int pixel_height = VERTICAL_SCROLL_BAR_PIXEL_HEIGHT (f, height); |
| 2612 | |
| 2613 | struct scroll_bar *bar; |
| 2614 | |
| 2615 | /* Does the scroll bar exist yet? */ |
| 2616 | if (NILP (window->vertical_scroll_bar)) |
| 2617 | bar = x_scroll_bar_create (window, |
| 2618 | pixel_top, pixel_left, |
| 2619 | pixel_width, pixel_height); |
| 2620 | else |
| 2621 | { |
| 2622 | /* It may just need to be moved and resized. */ |
| 2623 | bar = XSCROLL_BAR (window->vertical_scroll_bar); |
| 2624 | x_scroll_bar_move (bar, pixel_top, pixel_left, pixel_width, pixel_height); |
| 2625 | } |
| 2626 | |
| 2627 | /* Set the scroll bar's current state, unless we're currently being |
| 2628 | dragged. */ |
| 2629 | if (NILP (bar->dragging)) |
| 2630 | { |
| 2631 | int top_range = |
| 2632 | VERTICAL_SCROLL_BAR_TOP_RANGE (pixel_height); |
| 2633 | |
| 2634 | if (whole == 0) |
| 2635 | x_scroll_bar_set_handle (bar, 0, top_range, 0); |
| 2636 | else |
| 2637 | { |
| 2638 | int start = ((double) position * top_range) / whole; |
| 2639 | int end = ((double) (position + portion) * top_range) / whole; |
| 2640 | |
| 2641 | x_scroll_bar_set_handle (bar, start, end, 0); |
| 2642 | } |
| 2643 | } |
| 2644 | |
| 2645 | XSET (window->vertical_scroll_bar, Lisp_Vector, bar); |
| 2646 | } |
| 2647 | |
| 2648 | |
| 2649 | /* The following three hooks are used when we're doing a thorough |
| 2650 | redisplay of the frame. We don't explicitly know which scroll bars |
| 2651 | are going to be deleted, because keeping track of when windows go |
| 2652 | away is a real pain - "Can you say set-window-configuration, boys |
| 2653 | and girls?" Instead, we just assert at the beginning of redisplay |
| 2654 | that *all* scroll bars are to be removed, and then save a scroll bar |
| 2655 | from the fiery pit when we actually redisplay its window. */ |
| 2656 | |
| 2657 | /* Arrange for all scroll bars on FRAME to be removed at the next call |
| 2658 | to `*judge_scroll_bars_hook'. A scroll bar may be spared if |
| 2659 | `*redeem_scroll_bar_hook' is applied to its window before the judgement. */ |
| 2660 | static void |
| 2661 | XTcondemn_scroll_bars (frame) |
| 2662 | FRAME_PTR frame; |
| 2663 | { |
| 2664 | /* The condemned list should be empty at this point; if it's not, |
| 2665 | then the rest of Emacs isn't using the condemn/redeem/judge |
| 2666 | protocol correctly. */ |
| 2667 | if (! NILP (FRAME_CONDEMNED_SCROLL_BARS (frame))) |
| 2668 | abort (); |
| 2669 | |
| 2670 | /* Move them all to the "condemned" list. */ |
| 2671 | FRAME_CONDEMNED_SCROLL_BARS (frame) = FRAME_SCROLL_BARS (frame); |
| 2672 | FRAME_SCROLL_BARS (frame) = Qnil; |
| 2673 | } |
| 2674 | |
| 2675 | /* Unmark WINDOW's scroll bar for deletion in this judgement cycle. |
| 2676 | Note that WINDOW isn't necessarily condemned at all. */ |
| 2677 | static void |
| 2678 | XTredeem_scroll_bar (window) |
| 2679 | struct window *window; |
| 2680 | { |
| 2681 | struct scroll_bar *bar; |
| 2682 | |
| 2683 | /* We can't redeem this window's scroll bar if it doesn't have one. */ |
| 2684 | if (NILP (window->vertical_scroll_bar)) |
| 2685 | abort (); |
| 2686 | |
| 2687 | bar = XSCROLL_BAR (window->vertical_scroll_bar); |
| 2688 | |
| 2689 | /* Unlink it from the condemned list. */ |
| 2690 | { |
| 2691 | FRAME_PTR f = XFRAME (WINDOW_FRAME (window)); |
| 2692 | |
| 2693 | if (NILP (bar->prev)) |
| 2694 | { |
| 2695 | /* If the prev pointer is nil, it must be the first in one of |
| 2696 | the lists. */ |
| 2697 | if (EQ (FRAME_SCROLL_BARS (f), window->vertical_scroll_bar)) |
| 2698 | /* It's not condemned. Everything's fine. */ |
| 2699 | return; |
| 2700 | else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f), |
| 2701 | window->vertical_scroll_bar)) |
| 2702 | FRAME_CONDEMNED_SCROLL_BARS (f) = bar->next; |
| 2703 | else |
| 2704 | /* If its prev pointer is nil, it must be at the front of |
| 2705 | one or the other! */ |
| 2706 | abort (); |
| 2707 | } |
| 2708 | else |
| 2709 | XSCROLL_BAR (bar->prev)->next = bar->next; |
| 2710 | |
| 2711 | if (! NILP (bar->next)) |
| 2712 | XSCROLL_BAR (bar->next)->prev = bar->prev; |
| 2713 | |
| 2714 | bar->next = FRAME_SCROLL_BARS (f); |
| 2715 | bar->prev = Qnil; |
| 2716 | XSET (FRAME_SCROLL_BARS (f), Lisp_Vector, bar); |
| 2717 | if (! NILP (bar->next)) |
| 2718 | XSET (XSCROLL_BAR (bar->next)->prev, Lisp_Vector, bar); |
| 2719 | } |
| 2720 | } |
| 2721 | |
| 2722 | /* Remove all scroll bars on FRAME that haven't been saved since the |
| 2723 | last call to `*condemn_scroll_bars_hook'. */ |
| 2724 | static void |
| 2725 | XTjudge_scroll_bars (f) |
| 2726 | FRAME_PTR f; |
| 2727 | { |
| 2728 | Lisp_Object bar, next; |
| 2729 | |
| 2730 | bar = FRAME_CONDEMNED_SCROLL_BARS (f); |
| 2731 | |
| 2732 | /* Clear out the condemned list now so we won't try to process any |
| 2733 | more events on the hapless scroll bars. */ |
| 2734 | FRAME_CONDEMNED_SCROLL_BARS (f) = Qnil; |
| 2735 | |
| 2736 | for (; ! NILP (bar); bar = next) |
| 2737 | { |
| 2738 | struct scroll_bar *b = XSCROLL_BAR (bar); |
| 2739 | |
| 2740 | x_scroll_bar_remove (b); |
| 2741 | |
| 2742 | next = b->next; |
| 2743 | b->next = b->prev = Qnil; |
| 2744 | } |
| 2745 | |
| 2746 | /* Now there should be no references to the condemned scroll bars, |
| 2747 | and they should get garbage-collected. */ |
| 2748 | } |
| 2749 | |
| 2750 | |
| 2751 | /* Handle an Expose or GraphicsExpose event on a scroll bar. |
| 2752 | |
| 2753 | This may be called from a signal handler, so we have to ignore GC |
| 2754 | mark bits. */ |
| 2755 | static void |
| 2756 | x_scroll_bar_expose (bar, event) |
| 2757 | struct scroll_bar *bar; |
| 2758 | XEvent *event; |
| 2759 | { |
| 2760 | Window w = SCROLL_BAR_X_WINDOW (bar); |
| 2761 | GC gc = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)))->display.x->normal_gc; |
| 2762 | |
| 2763 | BLOCK_INPUT; |
| 2764 | |
| 2765 | x_scroll_bar_set_handle (bar, XINT (bar->start), XINT (bar->end), 1); |
| 2766 | |
| 2767 | /* Draw a one-pixel border just inside the edges of the scroll bar. */ |
| 2768 | XDrawRectangle (x_current_display, w, gc, |
| 2769 | |
| 2770 | /* x, y, width, height */ |
| 2771 | 0, 0, XINT (bar->width) - 1, XINT (bar->height) - 1); |
| 2772 | |
| 2773 | UNBLOCK_INPUT; |
| 2774 | } |
| 2775 | |
| 2776 | /* Handle a mouse click on the scroll bar BAR. If *EMACS_EVENT's kind |
| 2777 | is set to something other than no_event, it is enqueued. |
| 2778 | |
| 2779 | This may be called from a signal handler, so we have to ignore GC |
| 2780 | mark bits. */ |
| 2781 | static void |
| 2782 | x_scroll_bar_handle_click (bar, event, emacs_event) |
| 2783 | struct scroll_bar *bar; |
| 2784 | XEvent *event; |
| 2785 | struct input_event *emacs_event; |
| 2786 | { |
| 2787 | if (XGCTYPE (bar->window) != Lisp_Window) |
| 2788 | abort (); |
| 2789 | |
| 2790 | emacs_event->kind = scroll_bar_click; |
| 2791 | emacs_event->code = event->xbutton.button - Button1; |
| 2792 | emacs_event->modifiers = |
| 2793 | (x_x_to_emacs_modifiers (event->xbutton.state) |
| 2794 | | (event->type == ButtonRelease |
| 2795 | ? up_modifier |
| 2796 | : down_modifier)); |
| 2797 | emacs_event->frame_or_window = bar->window; |
| 2798 | emacs_event->timestamp = event->xbutton.time; |
| 2799 | { |
| 2800 | int internal_height = |
| 2801 | VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (XINT (bar->height)); |
| 2802 | int top_range = |
| 2803 | VERTICAL_SCROLL_BAR_TOP_RANGE (XINT (bar->height)); |
| 2804 | int y = event->xbutton.y - VERTICAL_SCROLL_BAR_TOP_BORDER; |
| 2805 | |
| 2806 | if (y < 0) y = 0; |
| 2807 | if (y > top_range) y = top_range; |
| 2808 | |
| 2809 | if (y < XINT (bar->start)) |
| 2810 | emacs_event->part = scroll_bar_above_handle; |
| 2811 | else if (y < XINT (bar->end) + VERTICAL_SCROLL_BAR_MIN_HANDLE) |
| 2812 | emacs_event->part = scroll_bar_handle; |
| 2813 | else |
| 2814 | emacs_event->part = scroll_bar_below_handle; |
| 2815 | |
| 2816 | /* Just because the user has clicked on the handle doesn't mean |
| 2817 | they want to drag it. Lisp code needs to be able to decide |
| 2818 | whether or not we're dragging. */ |
| 2819 | #if 0 |
| 2820 | /* If the user has just clicked on the handle, record where they're |
| 2821 | holding it. */ |
| 2822 | if (event->type == ButtonPress |
| 2823 | && emacs_event->part == scroll_bar_handle) |
| 2824 | XSET (bar->dragging, Lisp_Int, y - XINT (bar->start)); |
| 2825 | #endif |
| 2826 | |
| 2827 | /* If the user has released the handle, set it to its final position. */ |
| 2828 | if (event->type == ButtonRelease |
| 2829 | && ! NILP (bar->dragging)) |
| 2830 | { |
| 2831 | int new_start = y - XINT (bar->dragging); |
| 2832 | int new_end = new_start + (XINT (bar->end) - XINT (bar->start)); |
| 2833 | |
| 2834 | x_scroll_bar_set_handle (bar, new_start, new_end, 0); |
| 2835 | bar->dragging = Qnil; |
| 2836 | } |
| 2837 | |
| 2838 | /* Same deal here as the other #if 0. */ |
| 2839 | #if 0 |
| 2840 | /* Clicks on the handle are always reported as occurring at the top of |
| 2841 | the handle. */ |
| 2842 | if (emacs_event->part == scroll_bar_handle) |
| 2843 | emacs_event->x = bar->start; |
| 2844 | else |
| 2845 | XSET (emacs_event->x, Lisp_Int, y); |
| 2846 | #else |
| 2847 | XSET (emacs_event->x, Lisp_Int, y); |
| 2848 | #endif |
| 2849 | |
| 2850 | XSET (emacs_event->y, Lisp_Int, top_range); |
| 2851 | } |
| 2852 | } |
| 2853 | |
| 2854 | /* Handle some mouse motion while someone is dragging the scroll bar. |
| 2855 | |
| 2856 | This may be called from a signal handler, so we have to ignore GC |
| 2857 | mark bits. */ |
| 2858 | static void |
| 2859 | x_scroll_bar_note_movement (bar, event) |
| 2860 | struct scroll_bar *bar; |
| 2861 | XEvent *event; |
| 2862 | { |
| 2863 | last_mouse_movement_time = event->xmotion.time; |
| 2864 | |
| 2865 | mouse_moved = 1; |
| 2866 | XSET (last_mouse_scroll_bar, Lisp_Vector, bar); |
| 2867 | |
| 2868 | /* If we're dragging the bar, display it. */ |
| 2869 | if (! GC_NILP (bar->dragging)) |
| 2870 | { |
| 2871 | /* Where should the handle be now? */ |
| 2872 | int new_start = event->xmotion.y - XINT (bar->dragging); |
| 2873 | |
| 2874 | if (new_start != XINT (bar->start)) |
| 2875 | { |
| 2876 | int new_end = new_start + (XINT (bar->end) - XINT (bar->start)); |
| 2877 | |
| 2878 | x_scroll_bar_set_handle (bar, new_start, new_end, 0); |
| 2879 | } |
| 2880 | } |
| 2881 | |
| 2882 | /* Call XQueryPointer so we'll get an event the next time the mouse |
| 2883 | moves and we can see *still* on the same position. */ |
| 2884 | { |
| 2885 | int dummy; |
| 2886 | Window dummy_window; |
| 2887 | |
| 2888 | XQueryPointer (event->xmotion.display, event->xmotion.window, |
| 2889 | &dummy_window, &dummy_window, |
| 2890 | &dummy, &dummy, &dummy, &dummy, |
| 2891 | (unsigned int *) &dummy); |
| 2892 | } |
| 2893 | } |
| 2894 | |
| 2895 | /* Return information to the user about the current position of the mouse |
| 2896 | on the scroll bar. */ |
| 2897 | static void |
| 2898 | x_scroll_bar_report_motion (f, bar_window, part, x, y, time) |
| 2899 | FRAME_PTR *f; |
| 2900 | Lisp_Object *bar_window; |
| 2901 | enum scroll_bar_part *part; |
| 2902 | Lisp_Object *x, *y; |
| 2903 | unsigned long *time; |
| 2904 | { |
| 2905 | struct scroll_bar *bar = XSCROLL_BAR (last_mouse_scroll_bar); |
| 2906 | int win_x, win_y; |
| 2907 | Window dummy_window; |
| 2908 | int dummy_coord; |
| 2909 | unsigned int dummy_mask; |
| 2910 | |
| 2911 | BLOCK_INPUT; |
| 2912 | |
| 2913 | /* Get the mouse's position relative to the scroll bar window, and |
| 2914 | report that. */ |
| 2915 | if (! XQueryPointer (x_current_display, |
| 2916 | SCROLL_BAR_X_WINDOW (bar), |
| 2917 | |
| 2918 | /* Root, child, root x and root y. */ |
| 2919 | &dummy_window, &dummy_window, |
| 2920 | &dummy_coord, &dummy_coord, |
| 2921 | |
| 2922 | /* Position relative to scroll bar. */ |
| 2923 | &win_x, &win_y, |
| 2924 | |
| 2925 | /* Mouse buttons and modifier keys. */ |
| 2926 | &dummy_mask)) |
| 2927 | *f = 0; |
| 2928 | else |
| 2929 | { |
| 2930 | int inside_height |
| 2931 | = VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (XINT (bar->height)); |
| 2932 | int top_range |
| 2933 | = VERTICAL_SCROLL_BAR_TOP_RANGE (XINT (bar->height)); |
| 2934 | |
| 2935 | win_y -= VERTICAL_SCROLL_BAR_TOP_BORDER; |
| 2936 | |
| 2937 | if (! NILP (bar->dragging)) |
| 2938 | win_y -= XINT (bar->dragging); |
| 2939 | |
| 2940 | if (win_y < 0) |
| 2941 | win_y = 0; |
| 2942 | if (win_y > top_range) |
| 2943 | win_y = top_range; |
| 2944 | |
| 2945 | *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); |
| 2946 | *bar_window = bar->window; |
| 2947 | |
| 2948 | if (! NILP (bar->dragging)) |
| 2949 | *part = scroll_bar_handle; |
| 2950 | else if (win_y < XINT (bar->start)) |
| 2951 | *part = scroll_bar_above_handle; |
| 2952 | else if (win_y < XINT (bar->end) + VERTICAL_SCROLL_BAR_MIN_HANDLE) |
| 2953 | *part = scroll_bar_handle; |
| 2954 | else |
| 2955 | *part = scroll_bar_below_handle; |
| 2956 | |
| 2957 | XSET (*x, Lisp_Int, win_y); |
| 2958 | XSET (*y, Lisp_Int, top_range); |
| 2959 | |
| 2960 | mouse_moved = 0; |
| 2961 | last_mouse_scroll_bar = Qnil; |
| 2962 | } |
| 2963 | |
| 2964 | *time = last_mouse_movement_time; |
| 2965 | |
| 2966 | UNBLOCK_INPUT; |
| 2967 | } |
| 2968 | |
| 2969 | |
| 2970 | /* The screen has been cleared so we may have changed foreground or |
| 2971 | background colors, and the scroll bars may need to be redrawn. |
| 2972 | Clear out the scroll bars, and ask for expose events, so we can |
| 2973 | redraw them. */ |
| 2974 | |
| 2975 | x_scroll_bar_clear (f) |
| 2976 | FRAME_PTR f; |
| 2977 | { |
| 2978 | Lisp_Object bar; |
| 2979 | |
| 2980 | for (bar = FRAME_SCROLL_BARS (f); |
| 2981 | XTYPE (bar) == Lisp_Vector; |
| 2982 | bar = XSCROLL_BAR (bar)->next) |
| 2983 | XClearArea (x_current_display, SCROLL_BAR_X_WINDOW (XSCROLL_BAR (bar)), |
| 2984 | 0, 0, 0, 0, True); |
| 2985 | } |
| 2986 | |
| 2987 | /* This processes Expose events from the menubar specific X event |
| 2988 | loop in menubar.c. This allows to redisplay the frame if necessary |
| 2989 | when handling menubar or popup items. */ |
| 2990 | |
| 2991 | void |
| 2992 | process_expose_from_menu (event) |
| 2993 | XEvent event; |
| 2994 | { |
| 2995 | FRAME_PTR f; |
| 2996 | |
| 2997 | BLOCK_INPUT; |
| 2998 | |
| 2999 | f = x_window_to_frame (event.xexpose.window); |
| 3000 | if (f) |
| 3001 | { |
| 3002 | if (f->async_visible == 0) |
| 3003 | { |
| 3004 | f->async_visible = 1; |
| 3005 | f->async_iconified = 0; |
| 3006 | SET_FRAME_GARBAGED (f); |
| 3007 | } |
| 3008 | else |
| 3009 | { |
| 3010 | dumprectangle (x_window_to_frame (event.xexpose.window), |
| 3011 | event.xexpose.x, event.xexpose.y, |
| 3012 | event.xexpose.width, event.xexpose.height); |
| 3013 | } |
| 3014 | } |
| 3015 | else |
| 3016 | { |
| 3017 | struct scroll_bar *bar |
| 3018 | = x_window_to_scroll_bar (event.xexpose.window); |
| 3019 | |
| 3020 | if (bar) |
| 3021 | x_scroll_bar_expose (bar, &event); |
| 3022 | } |
| 3023 | |
| 3024 | UNBLOCK_INPUT; |
| 3025 | } |
| 3026 | \f |
| 3027 | /* Define a queue to save up SelectionRequest events for later handling. */ |
| 3028 | |
| 3029 | struct selection_event_queue |
| 3030 | { |
| 3031 | XEvent event; |
| 3032 | struct selection_event_queue *next; |
| 3033 | }; |
| 3034 | |
| 3035 | static struct selection_event_queue *queue; |
| 3036 | |
| 3037 | /* Nonzero means queue up certain events--don't process them yet. */ |
| 3038 | static int x_queue_selection_requests; |
| 3039 | |
| 3040 | /* Queue up an X event *EVENT, to be processed later. */ |
| 3041 | |
| 3042 | static void |
| 3043 | x_queue_event (event) |
| 3044 | XEvent *event; |
| 3045 | { |
| 3046 | struct selection_event_queue *queue_tmp |
| 3047 | = (struct selection_event_queue *) malloc (sizeof (struct selection_event_queue)); |
| 3048 | |
| 3049 | if (queue_tmp != NULL) |
| 3050 | { |
| 3051 | queue_tmp->event = *event; |
| 3052 | queue_tmp->next = queue; |
| 3053 | queue = queue_tmp; |
| 3054 | } |
| 3055 | } |
| 3056 | |
| 3057 | /* Take all the queued events and put them back |
| 3058 | so that they get processed afresh. */ |
| 3059 | |
| 3060 | static void |
| 3061 | x_unqueue_events () |
| 3062 | { |
| 3063 | while (queue != NULL) |
| 3064 | { |
| 3065 | struct selection_event_queue *queue_tmp = queue; |
| 3066 | XPutBackEvent (XDISPLAY &queue_tmp->event); |
| 3067 | queue = queue_tmp->next; |
| 3068 | free ((char *)queue_tmp); |
| 3069 | } |
| 3070 | } |
| 3071 | |
| 3072 | /* Start queuing SelectionRequest events. */ |
| 3073 | |
| 3074 | void |
| 3075 | x_start_queuing_selection_requests () |
| 3076 | { |
| 3077 | x_queue_selection_requests++; |
| 3078 | } |
| 3079 | |
| 3080 | /* Stop queuing SelectionRequest events. */ |
| 3081 | |
| 3082 | void |
| 3083 | x_stop_queuing_selection_requests () |
| 3084 | { |
| 3085 | x_queue_selection_requests--; |
| 3086 | x_unqueue_events (); |
| 3087 | } |
| 3088 | \f |
| 3089 | /* The main X event-reading loop - XTread_socket. */ |
| 3090 | |
| 3091 | /* Timestamp of enter window event. This is only used by XTread_socket, |
| 3092 | but we have to put it out here, since static variables within functions |
| 3093 | sometimes don't work. */ |
| 3094 | static Time enter_timestamp; |
| 3095 | |
| 3096 | /* This holds the state XLookupString needs to implement dead keys |
| 3097 | and other tricks known as "compose processing". _X Window System_ |
| 3098 | says that a portable program can't use this, but Stephen Gildea assures |
| 3099 | me that letting the compiler initialize it to zeros will work okay. |
| 3100 | |
| 3101 | This must be defined outside of XTread_socket, for the same reasons |
| 3102 | given for enter_timestamp, above. */ |
| 3103 | static XComposeStatus compose_status; |
| 3104 | |
| 3105 | /* Communication with window managers. */ |
| 3106 | Atom Xatom_wm_protocols; |
| 3107 | |
| 3108 | /* Kinds of protocol things we may receive. */ |
| 3109 | Atom Xatom_wm_take_focus; |
| 3110 | Atom Xatom_wm_save_yourself; |
| 3111 | Atom Xatom_wm_delete_window; |
| 3112 | |
| 3113 | /* Other WM communication */ |
| 3114 | Atom Xatom_wm_configure_denied; /* When our config request is denied */ |
| 3115 | Atom Xatom_wm_window_moved; /* When the WM moves us. */ |
| 3116 | |
| 3117 | /* Window manager communication. */ |
| 3118 | Atom Xatom_wm_change_state; |
| 3119 | |
| 3120 | /* EditRes protocol */ |
| 3121 | Atom Xatom_editres_name; |
| 3122 | |
| 3123 | /* Record the last 100 characters stored |
| 3124 | to help debug the loss-of-chars-during-GC problem. */ |
| 3125 | int temp_index; |
| 3126 | short temp_buffer[100]; |
| 3127 | |
| 3128 | /* Read events coming from the X server. |
| 3129 | This routine is called by the SIGIO handler. |
| 3130 | We return as soon as there are no more events to be read. |
| 3131 | |
| 3132 | Events representing keys are stored in buffer BUFP, |
| 3133 | which can hold up to NUMCHARS characters. |
| 3134 | We return the number of characters stored into the buffer, |
| 3135 | thus pretending to be `read'. |
| 3136 | |
| 3137 | WAITP is nonzero if we should block until input arrives. |
| 3138 | EXPECTED is nonzero if the caller knows input is available. */ |
| 3139 | |
| 3140 | int |
| 3141 | XTread_socket (sd, bufp, numchars, waitp, expected) |
| 3142 | register int sd; |
| 3143 | register struct input_event *bufp; |
| 3144 | register int numchars; |
| 3145 | int waitp; |
| 3146 | int expected; |
| 3147 | { |
| 3148 | int count = 0; |
| 3149 | int nbytes = 0; |
| 3150 | int mask; |
| 3151 | int items_pending; /* How many items are in the X queue. */ |
| 3152 | XEvent event; |
| 3153 | struct frame *f; |
| 3154 | int event_found = 0; |
| 3155 | int prefix; |
| 3156 | Lisp_Object part; |
| 3157 | |
| 3158 | if (interrupt_input_blocked) |
| 3159 | { |
| 3160 | interrupt_input_pending = 1; |
| 3161 | return -1; |
| 3162 | } |
| 3163 | |
| 3164 | interrupt_input_pending = 0; |
| 3165 | BLOCK_INPUT; |
| 3166 | |
| 3167 | if (numchars <= 0) |
| 3168 | abort (); /* Don't think this happens. */ |
| 3169 | |
| 3170 | #ifdef FIOSNBIO |
| 3171 | /* If available, Xlib uses FIOSNBIO to make the socket |
| 3172 | non-blocking, and then looks for EWOULDBLOCK. If O_NDELAY is set, |
| 3173 | FIOSNBIO is ignored, and instead of signalling EWOULDBLOCK, |
| 3174 | a read returns 0, which Xlib interprets as equivalent to EPIPE. */ |
| 3175 | fcntl (fileno (stdin), F_SETFL, 0); |
| 3176 | #endif /* ! defined (FIOSNBIO) */ |
| 3177 | |
| 3178 | #ifndef SIGIO |
| 3179 | #ifndef HAVE_SELECT |
| 3180 | if (! (fcntl (fileno (stdin), F_GETFL, 0) & O_NDELAY)) |
| 3181 | { |
| 3182 | extern int read_alarm_should_throw; |
| 3183 | read_alarm_should_throw = 1; |
| 3184 | XPeekEvent (XDISPLAY &event); |
| 3185 | read_alarm_should_throw = 0; |
| 3186 | } |
| 3187 | #endif /* HAVE_SELECT */ |
| 3188 | #endif /* SIGIO */ |
| 3189 | |
| 3190 | while (XStuffPending () != 0) |
| 3191 | { |
| 3192 | XNextEvent (XDISPLAY &event); |
| 3193 | event_found = 1; |
| 3194 | |
| 3195 | switch (event.type) |
| 3196 | { |
| 3197 | case ClientMessage: |
| 3198 | { |
| 3199 | if (event.xclient.message_type == Xatom_wm_protocols |
| 3200 | && event.xclient.format == 32) |
| 3201 | { |
| 3202 | if (event.xclient.data.l[0] == Xatom_wm_take_focus) |
| 3203 | { |
| 3204 | f = x_window_to_frame (event.xclient.window); |
| 3205 | /* Since we set WM_TAKE_FOCUS, we must call |
| 3206 | XSetInputFocus explicitly. But not if f is null, |
| 3207 | since that might be an event for a deleted frame. */ |
| 3208 | if (f) |
| 3209 | XSetInputFocus (event.xclient.display, |
| 3210 | event.xclient.window, |
| 3211 | RevertToPointerRoot, |
| 3212 | event.xclient.data.l[1]); |
| 3213 | /* Not certain about handling scroll bars here */ |
| 3214 | } |
| 3215 | else if (event.xclient.data.l[0] == Xatom_wm_save_yourself) |
| 3216 | { |
| 3217 | /* Save state modify the WM_COMMAND property to |
| 3218 | something which can reinstate us. This notifies |
| 3219 | the session manager, who's looking for such a |
| 3220 | PropertyNotify. Can restart processing when |
| 3221 | a keyboard or mouse event arrives. */ |
| 3222 | if (numchars > 0) |
| 3223 | { |
| 3224 | /* This is just so we only give real data once |
| 3225 | for a single Emacs process. */ |
| 3226 | if (x_top_window_to_frame (event.xclient.window) |
| 3227 | == selected_frame) |
| 3228 | XSetCommand (x_current_display, |
| 3229 | event.xclient.window, |
| 3230 | initial_argv, initial_argc); |
| 3231 | else |
| 3232 | XSetCommand (x_current_display, |
| 3233 | event.xclient.window, |
| 3234 | 0, 0); |
| 3235 | } |
| 3236 | } |
| 3237 | else if (event.xclient.data.l[0] == Xatom_wm_delete_window) |
| 3238 | { |
| 3239 | struct frame *f = x_any_window_to_frame (event.xclient.window); |
| 3240 | |
| 3241 | if (f) |
| 3242 | { |
| 3243 | if (numchars == 0) |
| 3244 | abort (); |
| 3245 | |
| 3246 | bufp->kind = delete_window_event; |
| 3247 | XSET (bufp->frame_or_window, Lisp_Frame, f); |
| 3248 | bufp++; |
| 3249 | |
| 3250 | count += 1; |
| 3251 | numchars -= 1; |
| 3252 | } |
| 3253 | } |
| 3254 | } |
| 3255 | else if (event.xclient.message_type == Xatom_wm_configure_denied) |
| 3256 | { |
| 3257 | } |
| 3258 | else if (event.xclient.message_type == Xatom_wm_window_moved) |
| 3259 | { |
| 3260 | int new_x, new_y; |
| 3261 | struct frame *f = x_window_to_frame (event.xclient.window); |
| 3262 | |
| 3263 | new_x = event.xclient.data.s[0]; |
| 3264 | new_y = event.xclient.data.s[1]; |
| 3265 | |
| 3266 | if (f) |
| 3267 | { |
| 3268 | f->display.x->left_pos = new_x; |
| 3269 | f->display.x->top_pos = new_y; |
| 3270 | } |
| 3271 | } |
| 3272 | #if defined (USE_X_TOOLKIT) && defined (HAVE_X11R5) |
| 3273 | else if (event.xclient.message_type == Xatom_editres_name) |
| 3274 | { |
| 3275 | struct frame *f = x_any_window_to_frame (event.xclient.window); |
| 3276 | _XEditResCheckMessages (f->display.x->widget, NULL, &event, NULL); |
| 3277 | } |
| 3278 | #endif /* USE_X_TOOLKIT and HAVE_X11R5 */ |
| 3279 | } |
| 3280 | break; |
| 3281 | |
| 3282 | case SelectionNotify: |
| 3283 | #ifdef USE_X_TOOLKIT |
| 3284 | if (! x_window_to_frame (event.xselection.requestor)) |
| 3285 | goto OTHER; |
| 3286 | #endif /* not USE_X_TOOLKIT */ |
| 3287 | x_handle_selection_notify (&event); |
| 3288 | break; |
| 3289 | |
| 3290 | case SelectionClear: /* Someone has grabbed ownership. */ |
| 3291 | #ifdef USE_X_TOOLKIT |
| 3292 | if (! x_window_to_frame (event.xselectionclear.window)) |
| 3293 | goto OTHER; |
| 3294 | #endif /* USE_X_TOOLKIT */ |
| 3295 | { |
| 3296 | XSelectionClearEvent *eventp = (XSelectionClearEvent *) &event; |
| 3297 | |
| 3298 | if (numchars == 0) |
| 3299 | abort (); |
| 3300 | |
| 3301 | bufp->kind = selection_clear_event; |
| 3302 | SELECTION_EVENT_DISPLAY (bufp) = eventp->display; |
| 3303 | SELECTION_EVENT_SELECTION (bufp) = eventp->selection; |
| 3304 | SELECTION_EVENT_TIME (bufp) = eventp->time; |
| 3305 | bufp++; |
| 3306 | |
| 3307 | count += 1; |
| 3308 | numchars -= 1; |
| 3309 | } |
| 3310 | break; |
| 3311 | |
| 3312 | case SelectionRequest: /* Someone wants our selection. */ |
| 3313 | #ifdef USE_X_TOOLKIT |
| 3314 | if (!x_window_to_frame (event.xselectionrequest.owner)) |
| 3315 | goto OTHER; |
| 3316 | #endif /* USE_X_TOOLKIT */ |
| 3317 | if (x_queue_selection_requests) |
| 3318 | x_queue_event (&event); |
| 3319 | else |
| 3320 | { |
| 3321 | XSelectionRequestEvent *eventp = (XSelectionRequestEvent *) &event; |
| 3322 | |
| 3323 | if (numchars == 0) |
| 3324 | abort (); |
| 3325 | |
| 3326 | bufp->kind = selection_request_event; |
| 3327 | SELECTION_EVENT_DISPLAY (bufp) = eventp->display; |
| 3328 | SELECTION_EVENT_REQUESTOR (bufp) = eventp->requestor; |
| 3329 | SELECTION_EVENT_SELECTION (bufp) = eventp->selection; |
| 3330 | SELECTION_EVENT_TARGET (bufp) = eventp->target; |
| 3331 | SELECTION_EVENT_PROPERTY (bufp) = eventp->property; |
| 3332 | SELECTION_EVENT_TIME (bufp) = eventp->time; |
| 3333 | bufp++; |
| 3334 | |
| 3335 | count += 1; |
| 3336 | numchars -= 1; |
| 3337 | } |
| 3338 | break; |
| 3339 | |
| 3340 | case PropertyNotify: |
| 3341 | #ifdef USE_X_TOOLKIT |
| 3342 | if (!x_any_window_to_frame (event.xproperty.window)) |
| 3343 | goto OTHER; |
| 3344 | #endif /* not USE_X_TOOLKIT */ |
| 3345 | x_handle_property_notify (&event); |
| 3346 | break; |
| 3347 | |
| 3348 | case ReparentNotify: |
| 3349 | f = x_top_window_to_frame (event.xreparent.window); |
| 3350 | if (f) |
| 3351 | { |
| 3352 | int x, y; |
| 3353 | f->display.x->parent_desc = event.xreparent.parent; |
| 3354 | x_real_positions (f, &x, &y); |
| 3355 | f->display.x->left_pos = x; |
| 3356 | f->display.x->top_pos = y; |
| 3357 | } |
| 3358 | break; |
| 3359 | |
| 3360 | case Expose: |
| 3361 | f = x_window_to_frame (event.xexpose.window); |
| 3362 | if (f) |
| 3363 | { |
| 3364 | if (f->async_visible == 0) |
| 3365 | { |
| 3366 | f->async_visible = 1; |
| 3367 | f->async_iconified = 0; |
| 3368 | SET_FRAME_GARBAGED (f); |
| 3369 | } |
| 3370 | else |
| 3371 | dumprectangle (x_window_to_frame (event.xexpose.window), |
| 3372 | event.xexpose.x, event.xexpose.y, |
| 3373 | event.xexpose.width, event.xexpose.height); |
| 3374 | } |
| 3375 | else |
| 3376 | { |
| 3377 | struct scroll_bar *bar |
| 3378 | = x_window_to_scroll_bar (event.xexpose.window); |
| 3379 | |
| 3380 | if (bar) |
| 3381 | x_scroll_bar_expose (bar, &event); |
| 3382 | #ifdef USE_X_TOOLKIT |
| 3383 | else |
| 3384 | goto OTHER; |
| 3385 | #endif /* USE_X_TOOLKIT */ |
| 3386 | } |
| 3387 | break; |
| 3388 | |
| 3389 | case GraphicsExpose: /* This occurs when an XCopyArea's |
| 3390 | source area was obscured or not |
| 3391 | available.*/ |
| 3392 | f = x_window_to_frame (event.xgraphicsexpose.drawable); |
| 3393 | if (f) |
| 3394 | { |
| 3395 | dumprectangle (f, |
| 3396 | event.xgraphicsexpose.x, event.xgraphicsexpose.y, |
| 3397 | event.xgraphicsexpose.width, |
| 3398 | event.xgraphicsexpose.height); |
| 3399 | } |
| 3400 | #ifdef USE_X_TOOLKIT |
| 3401 | else |
| 3402 | goto OTHER; |
| 3403 | #endif /* USE_X_TOOLKIT */ |
| 3404 | break; |
| 3405 | |
| 3406 | case NoExpose: /* This occurs when an XCopyArea's |
| 3407 | source area was completely |
| 3408 | available */ |
| 3409 | break; |
| 3410 | |
| 3411 | case UnmapNotify: |
| 3412 | f = x_any_window_to_frame (event.xunmap.window); |
| 3413 | if (f) /* F may no longer exist if |
| 3414 | the frame was deleted. */ |
| 3415 | { |
| 3416 | /* While a frame is unmapped, display generation is |
| 3417 | disabled; you don't want to spend time updating a |
| 3418 | display that won't ever be seen. */ |
| 3419 | f->async_visible = 0; |
| 3420 | /* We can't distinguish, from the event, whether the window |
| 3421 | has become iconified or invisible. So assume, if it |
| 3422 | was previously visible, than now it is iconified. |
| 3423 | We depend on x_make_frame_invisible to mark it iconified. */ |
| 3424 | if (FRAME_VISIBLE_P (f) || FRAME_ICONIFIED_P (f)) |
| 3425 | f->async_iconified = 1; |
| 3426 | } |
| 3427 | #ifdef USE_X_TOOLKIT |
| 3428 | goto OTHER; |
| 3429 | #endif /* USE_X_TOOLKIT */ |
| 3430 | break; |
| 3431 | |
| 3432 | case MapNotify: |
| 3433 | /* We use x_top_window_to_frame because map events can come |
| 3434 | for subwindows and they don't mean that the frame is visible. */ |
| 3435 | f = x_top_window_to_frame (event.xmap.window); |
| 3436 | if (f) |
| 3437 | { |
| 3438 | f->async_visible = 1; |
| 3439 | f->async_iconified = 0; |
| 3440 | |
| 3441 | /* wait_reading_process_input will notice this and update |
| 3442 | the frame's display structures. */ |
| 3443 | SET_FRAME_GARBAGED (f); |
| 3444 | } |
| 3445 | #ifdef USE_X_TOOLKIT |
| 3446 | goto OTHER; |
| 3447 | #endif /* USE_X_TOOLKIT */ |
| 3448 | break; |
| 3449 | |
| 3450 | /* Turn off processing if we become fully obscured. */ |
| 3451 | case VisibilityNotify: |
| 3452 | break; |
| 3453 | |
| 3454 | case KeyPress: |
| 3455 | f = x_any_window_to_frame (event.xkey.window); |
| 3456 | |
| 3457 | if (f != 0) |
| 3458 | { |
| 3459 | KeySym keysym, orig_keysym; |
| 3460 | /* al%imercury@uunet.uu.net says that making this 81 instead of |
| 3461 | 80 fixed a bug whereby meta chars made his Emacs hang. */ |
| 3462 | unsigned char copy_buffer[81]; |
| 3463 | int modifiers; |
| 3464 | |
| 3465 | event.xkey.state |
| 3466 | |= x_emacs_to_x_modifiers (extra_keyboard_modifiers); |
| 3467 | modifiers = event.xkey.state; |
| 3468 | |
| 3469 | /* This will have to go some day... */ |
| 3470 | |
| 3471 | /* make_lispy_event turns chars into control chars. |
| 3472 | Don't do it here because XLookupString is too eager. */ |
| 3473 | event.xkey.state &= ~ControlMask; |
| 3474 | nbytes = |
| 3475 | XLookupString (&event.xkey, copy_buffer, 80, &keysym, |
| 3476 | &compose_status); |
| 3477 | |
| 3478 | orig_keysym = keysym; |
| 3479 | |
| 3480 | if (numchars > 1) |
| 3481 | { |
| 3482 | if (((keysym >= XK_BackSpace && keysym <= XK_Escape) |
| 3483 | || keysym == XK_Delete |
| 3484 | || IsCursorKey (keysym) /* 0xff50 <= x < 0xff60 */ |
| 3485 | || IsMiscFunctionKey (keysym) /* 0xff60 <= x < VARIES */ |
| 3486 | #ifdef HPUX |
| 3487 | /* This recognizes the "extended function keys". |
| 3488 | It seems there's no cleaner way. |
| 3489 | Test IsModifierKey to avoid handling mode_switch |
| 3490 | incorrectly. */ |
| 3491 | || ((unsigned) (keysym) >= XK_Select |
| 3492 | && (unsigned)(keysym) < XK_KP_Space) |
| 3493 | #endif |
| 3494 | #ifdef XK_dead_circumflex |
| 3495 | || orig_keysym == XK_dead_circumflex |
| 3496 | #endif |
| 3497 | #ifdef XK_dead_grave |
| 3498 | || orig_keysym == XK_dead_grave |
| 3499 | #endif |
| 3500 | #ifdef XK_dead_tilde |
| 3501 | || orig_keysym == XK_dead_tilde |
| 3502 | #endif |
| 3503 | #ifdef XK_dead_diaeresis |
| 3504 | || orig_keysym == XK_dead_diaeresis |
| 3505 | #endif |
| 3506 | #ifdef XK_dead_macron |
| 3507 | || orig_keysym == XK_dead_macron |
| 3508 | #endif |
| 3509 | #ifdef XK_dead_degree |
| 3510 | || orig_keysym == XK_dead_degree |
| 3511 | #endif |
| 3512 | #ifdef XK_dead_acute |
| 3513 | || orig_keysym == XK_dead_acute |
| 3514 | #endif |
| 3515 | #ifdef XK_dead_cedilla |
| 3516 | || orig_keysym == XK_dead_cedilla |
| 3517 | #endif |
| 3518 | #ifdef XK_dead_breve |
| 3519 | || orig_keysym == XK_dead_breve |
| 3520 | #endif |
| 3521 | #ifdef XK_dead_ogonek |
| 3522 | || orig_keysym == XK_dead_ogonek |
| 3523 | #endif |
| 3524 | #ifdef XK_dead_caron |
| 3525 | || orig_keysym == XK_dead_caron |
| 3526 | #endif |
| 3527 | #ifdef XK_dead_doubleacute |
| 3528 | || orig_keysym == XK_dead_doubleacute |
| 3529 | #endif |
| 3530 | #ifdef XK_dead_abovedot |
| 3531 | || orig_keysym == XK_dead_abovedot |
| 3532 | #endif |
| 3533 | || IsKeypadKey (keysym) /* 0xff80 <= x < 0xffbe */ |
| 3534 | || IsFunctionKey (keysym) /* 0xffbe <= x < 0xffe1 */ |
| 3535 | /* Any "vendor-specific" key is ok. */ |
| 3536 | || (orig_keysym & (1 << 28))) |
| 3537 | && ! (IsModifierKey (orig_keysym) |
| 3538 | #ifndef HAVE_X11R5 |
| 3539 | #ifdef XK_Mode_switch |
| 3540 | || ((unsigned)(orig_keysym) == XK_Mode_switch) |
| 3541 | #endif |
| 3542 | #ifdef XK_Num_Lock |
| 3543 | || ((unsigned)(orig_keysym) == XK_Num_Lock) |
| 3544 | #endif |
| 3545 | #endif /* not HAVE_X11R5 */ |
| 3546 | )) |
| 3547 | { |
| 3548 | if (temp_index == sizeof temp_buffer / sizeof (short)) |
| 3549 | temp_index = 0; |
| 3550 | temp_buffer[temp_index++] = keysym; |
| 3551 | bufp->kind = non_ascii_keystroke; |
| 3552 | bufp->code = keysym; |
| 3553 | XSET (bufp->frame_or_window, Lisp_Frame, f); |
| 3554 | bufp->modifiers = x_x_to_emacs_modifiers (modifiers); |
| 3555 | bufp->timestamp = event.xkey.time; |
| 3556 | bufp++; |
| 3557 | count++; |
| 3558 | numchars--; |
| 3559 | } |
| 3560 | else if (numchars > nbytes) |
| 3561 | { |
| 3562 | register int i; |
| 3563 | |
| 3564 | for (i = 0; i < nbytes; i++) |
| 3565 | { |
| 3566 | if (temp_index == sizeof temp_buffer / sizeof (short)) |
| 3567 | temp_index = 0; |
| 3568 | temp_buffer[temp_index++] = copy_buffer[i]; |
| 3569 | bufp->kind = ascii_keystroke; |
| 3570 | bufp->code = copy_buffer[i]; |
| 3571 | XSET (bufp->frame_or_window, Lisp_Frame, f); |
| 3572 | bufp->modifiers = x_x_to_emacs_modifiers (modifiers); |
| 3573 | bufp->timestamp = event.xkey.time; |
| 3574 | bufp++; |
| 3575 | } |
| 3576 | |
| 3577 | count += nbytes; |
| 3578 | numchars -= nbytes; |
| 3579 | } |
| 3580 | else |
| 3581 | abort (); |
| 3582 | } |
| 3583 | else |
| 3584 | abort (); |
| 3585 | } |
| 3586 | break; |
| 3587 | |
| 3588 | /* Here's a possible interpretation of the whole |
| 3589 | FocusIn-EnterNotify FocusOut-LeaveNotify mess. If you get a |
| 3590 | FocusIn event, you have to get a FocusOut event before you |
| 3591 | relinquish the focus. If you haven't received a FocusIn event, |
| 3592 | then a mere LeaveNotify is enough to free you. */ |
| 3593 | |
| 3594 | case EnterNotify: |
| 3595 | f = x_any_window_to_frame (event.xcrossing.window); |
| 3596 | |
| 3597 | if (event.xcrossing.focus) /* Entered Window */ |
| 3598 | { |
| 3599 | /* Avoid nasty pop/raise loops. */ |
| 3600 | if (f && (!(f->auto_raise) |
| 3601 | || !(f->auto_lower) |
| 3602 | || (event.xcrossing.time - enter_timestamp) > 500)) |
| 3603 | { |
| 3604 | x_new_focus_frame (f); |
| 3605 | enter_timestamp = event.xcrossing.time; |
| 3606 | } |
| 3607 | } |
| 3608 | else if (f == x_focus_frame) |
| 3609 | x_new_focus_frame (0); |
| 3610 | /* EnterNotify counts as mouse movement, |
| 3611 | so update things that depend on mouse position. */ |
| 3612 | if (f) |
| 3613 | note_mouse_movement (f, &event.xmotion); |
| 3614 | #ifdef USE_X_TOOLKIT |
| 3615 | goto OTHER; |
| 3616 | #endif /* USE_X_TOOLKIT */ |
| 3617 | break; |
| 3618 | |
| 3619 | case FocusIn: |
| 3620 | f = x_any_window_to_frame (event.xfocus.window); |
| 3621 | if (event.xfocus.detail != NotifyPointer) |
| 3622 | x_focus_event_frame = f; |
| 3623 | if (f) |
| 3624 | x_new_focus_frame (f); |
| 3625 | #ifdef USE_X_TOOLKIT |
| 3626 | goto OTHER; |
| 3627 | #endif /* USE_X_TOOLKIT */ |
| 3628 | break; |
| 3629 | |
| 3630 | |
| 3631 | case LeaveNotify: |
| 3632 | f = x_top_window_to_frame (event.xcrossing.window); |
| 3633 | if (f) |
| 3634 | { |
| 3635 | if (f == mouse_face_mouse_frame) |
| 3636 | /* If we move outside the frame, |
| 3637 | then we're certainly no longer on any text in the frame. */ |
| 3638 | clear_mouse_face (); |
| 3639 | |
| 3640 | if (event.xcrossing.focus) |
| 3641 | { |
| 3642 | if (! x_focus_event_frame) |
| 3643 | x_new_focus_frame (0); |
| 3644 | else |
| 3645 | x_new_focus_frame (f); |
| 3646 | } |
| 3647 | else |
| 3648 | { |
| 3649 | if (f == x_focus_event_frame) |
| 3650 | x_focus_event_frame = 0; |
| 3651 | if (f == x_focus_frame) |
| 3652 | x_new_focus_frame (0); |
| 3653 | } |
| 3654 | } |
| 3655 | #ifdef USE_X_TOOLKIT |
| 3656 | goto OTHER; |
| 3657 | #endif /* USE_X_TOOLKIT */ |
| 3658 | break; |
| 3659 | |
| 3660 | case FocusOut: |
| 3661 | f = x_any_window_to_frame (event.xfocus.window); |
| 3662 | if (event.xfocus.detail != NotifyPointer |
| 3663 | && f == x_focus_event_frame) |
| 3664 | x_focus_event_frame = 0; |
| 3665 | if (f && f == x_focus_frame) |
| 3666 | x_new_focus_frame (0); |
| 3667 | #ifdef USE_X_TOOLKIT |
| 3668 | goto OTHER; |
| 3669 | #endif /* USE_X_TOOLKIT */ |
| 3670 | break; |
| 3671 | |
| 3672 | case MotionNotify: |
| 3673 | { |
| 3674 | if (x_mouse_grabbed && last_mouse_frame |
| 3675 | && FRAME_LIVE_P (last_mouse_frame)) |
| 3676 | f = last_mouse_frame; |
| 3677 | else |
| 3678 | f = x_window_to_frame (event.xmotion.window); |
| 3679 | if (f) |
| 3680 | note_mouse_movement (f, &event.xmotion); |
| 3681 | else |
| 3682 | { |
| 3683 | struct scroll_bar *bar |
| 3684 | = x_window_to_scroll_bar (event.xmotion.window); |
| 3685 | |
| 3686 | if (bar) |
| 3687 | x_scroll_bar_note_movement (bar, &event); |
| 3688 | |
| 3689 | /* If we move outside the frame, |
| 3690 | then we're certainly no longer on any text in the frame. */ |
| 3691 | clear_mouse_face (); |
| 3692 | } |
| 3693 | } |
| 3694 | #if 0 /* This should be unnecessary, since the toolkit has no use |
| 3695 | for motion events that happen outside of the menu event loop, |
| 3696 | and it seems to cause the bug that mouse events stop coming |
| 3697 | after a while. */ |
| 3698 | #ifdef USE_X_TOOLKIT |
| 3699 | goto OTHER; |
| 3700 | #endif /* USE_X_TOOLKIT */ |
| 3701 | #endif |
| 3702 | break; |
| 3703 | |
| 3704 | case ConfigureNotify: |
| 3705 | f = x_any_window_to_frame (event.xconfigure.window); |
| 3706 | #ifdef USE_X_TOOLKIT |
| 3707 | if (f |
| 3708 | #if 0 |
| 3709 | && ! event.xconfigure.send_event |
| 3710 | #endif |
| 3711 | && (event.xconfigure.window == XtWindow (f->display.x->widget))) |
| 3712 | { |
| 3713 | Window win, child; |
| 3714 | int win_x, win_y; |
| 3715 | |
| 3716 | /* Find the position of the outside upper-left corner of |
| 3717 | the window, in the root coordinate system. Don't |
| 3718 | refer to the parent window here; we may be processing |
| 3719 | this event after the window manager has changed our |
| 3720 | parent, but before we have reached the ReparentNotify. */ |
| 3721 | XTranslateCoordinates (x_current_display, |
| 3722 | |
| 3723 | /* From-window, to-window. */ |
| 3724 | XtWindow (f->display.x->widget), |
| 3725 | ROOT_WINDOW, |
| 3726 | |
| 3727 | /* From-position, to-position. */ |
| 3728 | -event.xconfigure.border_width, |
| 3729 | -event.xconfigure.border_width, |
| 3730 | &win_x, &win_y, |
| 3731 | |
| 3732 | /* Child of win. */ |
| 3733 | &child); |
| 3734 | event.xconfigure.x = win_x; |
| 3735 | event.xconfigure.y = win_y; |
| 3736 | |
| 3737 | f->display.x->pixel_width = event.xconfigure.width; |
| 3738 | f->display.x->pixel_height = event.xconfigure.height; |
| 3739 | f->display.x->left_pos = event.xconfigure.x; |
| 3740 | f->display.x->top_pos = event.xconfigure.y; |
| 3741 | |
| 3742 | /* What we have now is the position of Emacs's own window. |
| 3743 | Convert that to the position of the window manager window. */ |
| 3744 | { |
| 3745 | int x, y; |
| 3746 | x_real_positions (f, &x, &y); |
| 3747 | f->display.x->left_pos = x; |
| 3748 | f->display.x->top_pos = y; |
| 3749 | } |
| 3750 | } |
| 3751 | goto OTHER; |
| 3752 | #else /* not USE_X_TOOLKIT */ |
| 3753 | if (f) |
| 3754 | { |
| 3755 | int rows = PIXEL_TO_CHAR_HEIGHT (f, event.xconfigure.height); |
| 3756 | int columns = PIXEL_TO_CHAR_WIDTH (f, event.xconfigure.width); |
| 3757 | |
| 3758 | /* Even if the number of character rows and columns has |
| 3759 | not changed, the font size may have changed, so we need |
| 3760 | to check the pixel dimensions as well. */ |
| 3761 | if (columns != f->width |
| 3762 | || rows != f->height |
| 3763 | || event.xconfigure.width != f->display.x->pixel_width |
| 3764 | || event.xconfigure.height != f->display.x->pixel_height) |
| 3765 | { |
| 3766 | change_frame_size (f, rows, columns, 0, 1); |
| 3767 | SET_FRAME_GARBAGED (f); |
| 3768 | } |
| 3769 | |
| 3770 | if (! event.xconfigure.send_event) |
| 3771 | { |
| 3772 | Window win, child; |
| 3773 | int win_x, win_y; |
| 3774 | |
| 3775 | /* Find the position of the outside upper-left corner of |
| 3776 | the window, in the root coordinate system. Don't |
| 3777 | refer to the parent window here; we may be processing |
| 3778 | this event after the window manager has changed our |
| 3779 | parent, but before we have reached the ReparentNotify. */ |
| 3780 | XTranslateCoordinates (x_current_display, |
| 3781 | |
| 3782 | /* From-window, to-window. */ |
| 3783 | f->display.x->window_desc, |
| 3784 | ROOT_WINDOW, |
| 3785 | |
| 3786 | /* From-position, to-position. */ |
| 3787 | -event.xconfigure.border_width, |
| 3788 | -event.xconfigure.border_width, |
| 3789 | &win_x, &win_y, |
| 3790 | |
| 3791 | /* Child of win. */ |
| 3792 | &child); |
| 3793 | event.xconfigure.x = win_x; |
| 3794 | event.xconfigure.y = win_y; |
| 3795 | } |
| 3796 | |
| 3797 | f->display.x->pixel_width = event.xconfigure.width; |
| 3798 | f->display.x->pixel_height = event.xconfigure.height; |
| 3799 | f->display.x->left_pos = event.xconfigure.x; |
| 3800 | f->display.x->top_pos = event.xconfigure.y; |
| 3801 | |
| 3802 | /* What we have now is the position of Emacs's own window. |
| 3803 | Convert that to the position of the window manager window. */ |
| 3804 | { |
| 3805 | int x, y; |
| 3806 | x_real_positions (f, &x, &y); |
| 3807 | f->display.x->left_pos = x; |
| 3808 | f->display.x->top_pos = y; |
| 3809 | if (y != event.xconfigure.y) |
| 3810 | { |
| 3811 | /* Since the WM decorations come below top_pos now, |
| 3812 | we must put them below top_pos in the future. */ |
| 3813 | f->display.x->win_gravity = NorthWestGravity; |
| 3814 | x_wm_set_size_hint (f, 0, 0); |
| 3815 | } |
| 3816 | } |
| 3817 | } |
| 3818 | #endif /* not USE_X_TOOLKIT */ |
| 3819 | break; |
| 3820 | |
| 3821 | case ButtonPress: |
| 3822 | case ButtonRelease: |
| 3823 | { |
| 3824 | /* If we decide we want to generate an event to be seen |
| 3825 | by the rest of Emacs, we put it here. */ |
| 3826 | struct input_event emacs_event; |
| 3827 | emacs_event.kind = no_event; |
| 3828 | |
| 3829 | bzero (&compose_status, sizeof (compose_status)); |
| 3830 | |
| 3831 | f = x_window_to_frame (event.xbutton.window); |
| 3832 | if (f) |
| 3833 | { |
| 3834 | if (!x_focus_frame || (f == x_focus_frame)) |
| 3835 | construct_mouse_click (&emacs_event, &event, f); |
| 3836 | } |
| 3837 | else |
| 3838 | { |
| 3839 | struct scroll_bar *bar |
| 3840 | = x_window_to_scroll_bar (event.xbutton.window); |
| 3841 | |
| 3842 | if (bar) |
| 3843 | x_scroll_bar_handle_click (bar, &event, &emacs_event); |
| 3844 | #ifdef USE_X_TOOLKIT |
| 3845 | else |
| 3846 | { |
| 3847 | f = x_any_window_to_frame (event.xbutton.window); |
| 3848 | if (f && event.type == ButtonPress) |
| 3849 | construct_menu_click (&emacs_event, |
| 3850 | &event, f); |
| 3851 | } |
| 3852 | #endif /* USE_X_TOOLKIT */ |
| 3853 | } |
| 3854 | |
| 3855 | if (event.type == ButtonPress) |
| 3856 | { |
| 3857 | x_mouse_grabbed |= (1 << event.xbutton.button); |
| 3858 | Vmouse_depressed = Qt; |
| 3859 | last_mouse_frame = f; |
| 3860 | } |
| 3861 | else |
| 3862 | { |
| 3863 | x_mouse_grabbed &= ~(1 << event.xbutton.button); |
| 3864 | if (!x_mouse_grabbed) |
| 3865 | Vmouse_depressed = Qnil; |
| 3866 | } |
| 3867 | |
| 3868 | if (numchars >= 1 && emacs_event.kind != no_event) |
| 3869 | { |
| 3870 | bcopy (&emacs_event, bufp, sizeof (struct input_event)); |
| 3871 | bufp++; |
| 3872 | count++; |
| 3873 | numchars--; |
| 3874 | } |
| 3875 | |
| 3876 | #ifdef USE_X_TOOLKIT |
| 3877 | goto OTHER; |
| 3878 | #endif /* USE_X_TOOLKIT */ |
| 3879 | } |
| 3880 | break; |
| 3881 | |
| 3882 | case CirculateNotify: |
| 3883 | break; |
| 3884 | case CirculateRequest: |
| 3885 | break; |
| 3886 | |
| 3887 | case MappingNotify: |
| 3888 | /* Someone has changed the keyboard mapping - update the |
| 3889 | local cache. */ |
| 3890 | switch (event.xmapping.request) |
| 3891 | { |
| 3892 | case MappingModifier: |
| 3893 | x_find_modifier_meanings (); |
| 3894 | /* This is meant to fall through. */ |
| 3895 | case MappingKeyboard: |
| 3896 | XRefreshKeyboardMapping (&event.xmapping); |
| 3897 | } |
| 3898 | #ifdef USE_X_TOOLKIT |
| 3899 | goto OTHER; |
| 3900 | #endif /* USE_X_TOOLKIT */ |
| 3901 | break; |
| 3902 | |
| 3903 | default: |
| 3904 | #ifdef USE_X_TOOLKIT |
| 3905 | OTHER: |
| 3906 | BLOCK_INPUT; |
| 3907 | XtDispatchEvent (&event); |
| 3908 | UNBLOCK_INPUT; |
| 3909 | #endif /* USE_X_TOOLKIT */ |
| 3910 | break; |
| 3911 | } |
| 3912 | } |
| 3913 | |
| 3914 | /* On some systems, an X bug causes Emacs to get no more events |
| 3915 | when the window is destroyed. Detect that. (1994.) */ |
| 3916 | if (! event_found) |
| 3917 | { |
| 3918 | /* Emacs and the X Server eats up CPU time if XNoOp is done every time. |
| 3919 | One XNOOP in 100 loops will make Emacs terminate. |
| 3920 | B. Bretthauer, 1994 */ |
| 3921 | x_noop_count++; |
| 3922 | if (x_noop_count >= 100) |
| 3923 | { |
| 3924 | x_noop_count=0; |
| 3925 | XNoOp (x_current_display); |
| 3926 | } |
| 3927 | } |
| 3928 | |
| 3929 | #if 0 /* This fails for serial-line connections to the X server, |
| 3930 | because the characters arrive one by one, and a partial |
| 3931 | command makes select return but gives nothing to read. |
| 3932 | We'll have to hope that the bug that this tried to fix |
| 3933 | in 1988 has been fixed in Xlib or the X server. */ |
| 3934 | #ifdef HAVE_SELECT |
| 3935 | if (expected && ! event_found) |
| 3936 | { |
| 3937 | /* AOJ 880406: if select returns true but XPending doesn't, it means that |
| 3938 | there is an EOF condition; in other words, that X has died. |
| 3939 | Act as if there had been a hangup. */ |
| 3940 | int fd = ConnectionNumber (x_current_display); |
| 3941 | SELECT_TYPE mask, junk1, junk2; |
| 3942 | EMACS_TIME timeout; |
| 3943 | |
| 3944 | FD_ZERO (&mask); |
| 3945 | FD_SET (fd, &mask); |
| 3946 | EMACS_SET_SECS_USECS (timeout, 0, 0); |
| 3947 | FD_ZERO (&junk1); |
| 3948 | FD_ZERO (&junk2); |
| 3949 | if (0 != select (fd + 1, &mask, &junk1, &junk2, &timeout) |
| 3950 | && !XStuffPending ()) |
| 3951 | kill (getpid (), SIGHUP); |
| 3952 | } |
| 3953 | #endif /* HAVE_SELECT */ |
| 3954 | #endif /* 0 */ |
| 3955 | |
| 3956 | /* If the focus was just given to an autoraising frame, |
| 3957 | raise it now. */ |
| 3958 | if (pending_autoraise_frame) |
| 3959 | { |
| 3960 | x_raise_frame (pending_autoraise_frame); |
| 3961 | pending_autoraise_frame = 0; |
| 3962 | } |
| 3963 | |
| 3964 | UNBLOCK_INPUT; |
| 3965 | return count; |
| 3966 | } |
| 3967 | \f |
| 3968 | /* Drawing the cursor. */ |
| 3969 | |
| 3970 | |
| 3971 | /* Draw a hollow box cursor. Don't change the inside of the box. */ |
| 3972 | |
| 3973 | static void |
| 3974 | x_draw_box (f) |
| 3975 | struct frame *f; |
| 3976 | { |
| 3977 | int left = CHAR_TO_PIXEL_COL (f, curs_x); |
| 3978 | int top = CHAR_TO_PIXEL_ROW (f, curs_y); |
| 3979 | int width = FONT_WIDTH (f->display.x->font); |
| 3980 | int height = f->display.x->line_height; |
| 3981 | |
| 3982 | XDrawRectangle (x_current_display, FRAME_X_WINDOW (f), |
| 3983 | f->display.x->cursor_gc, |
| 3984 | left, top, width - 1, height - 1); |
| 3985 | } |
| 3986 | |
| 3987 | /* Clear the cursor of frame F to background color, |
| 3988 | and mark the cursor as not shown. |
| 3989 | This is used when the text where the cursor is |
| 3990 | is about to be rewritten. */ |
| 3991 | |
| 3992 | static void |
| 3993 | clear_cursor (f) |
| 3994 | struct frame *f; |
| 3995 | { |
| 3996 | int mask; |
| 3997 | |
| 3998 | if (! FRAME_VISIBLE_P (f) |
| 3999 | || f->phys_cursor_x < 0) |
| 4000 | return; |
| 4001 | |
| 4002 | x_display_cursor (f, 0); |
| 4003 | f->phys_cursor_x = -1; |
| 4004 | } |
| 4005 | |
| 4006 | /* Redraw the glyph at ROW, COLUMN on frame F, in the style |
| 4007 | HIGHLIGHT. HIGHLIGHT is as defined for dumpglyphs. Return the |
| 4008 | glyph drawn. */ |
| 4009 | |
| 4010 | static void |
| 4011 | x_draw_single_glyph (f, row, column, glyph, highlight) |
| 4012 | struct frame *f; |
| 4013 | int row, column; |
| 4014 | GLYPH glyph; |
| 4015 | int highlight; |
| 4016 | { |
| 4017 | dumpglyphs (f, |
| 4018 | CHAR_TO_PIXEL_COL (f, column), |
| 4019 | CHAR_TO_PIXEL_ROW (f, row), |
| 4020 | &glyph, 1, highlight, 0); |
| 4021 | } |
| 4022 | |
| 4023 | static void |
| 4024 | x_display_bar_cursor (f, on) |
| 4025 | struct frame *f; |
| 4026 | int on; |
| 4027 | { |
| 4028 | struct frame_glyphs *current_glyphs = FRAME_CURRENT_GLYPHS (f); |
| 4029 | |
| 4030 | /* This is pointless on invisible frames, and dangerous on garbaged |
| 4031 | frames; in the latter case, the frame may be in the midst of |
| 4032 | changing its size, and curs_x and curs_y may be off the frame. */ |
| 4033 | if (! FRAME_VISIBLE_P (f) || FRAME_GARBAGED_P (f)) |
| 4034 | return; |
| 4035 | |
| 4036 | if (! on && f->phys_cursor_x < 0) |
| 4037 | return; |
| 4038 | |
| 4039 | /* If we're not updating, then we want to use the current frame's |
| 4040 | cursor position, not our local idea of where the cursor ought to be. */ |
| 4041 | if (f != updating_frame) |
| 4042 | { |
| 4043 | curs_x = FRAME_CURSOR_X (f); |
| 4044 | curs_y = FRAME_CURSOR_Y (f); |
| 4045 | } |
| 4046 | |
| 4047 | /* If there is anything wrong with the current cursor state, remove it. */ |
| 4048 | if (f->phys_cursor_x >= 0 |
| 4049 | && (!on |
| 4050 | || f->phys_cursor_x != curs_x |
| 4051 | || f->phys_cursor_y != curs_y |
| 4052 | || f->display.x->current_cursor != bar_cursor)) |
| 4053 | { |
| 4054 | /* Erase the cursor by redrawing the character underneath it. */ |
| 4055 | x_draw_single_glyph (f, f->phys_cursor_y, f->phys_cursor_x, |
| 4056 | f->phys_cursor_glyph, |
| 4057 | current_glyphs->highlight[f->phys_cursor_y]); |
| 4058 | f->phys_cursor_x = -1; |
| 4059 | } |
| 4060 | |
| 4061 | /* If we now need a cursor in the new place or in the new form, do it so. */ |
| 4062 | if (on |
| 4063 | && (f->phys_cursor_x < 0 |
| 4064 | || (f->display.x->current_cursor != bar_cursor))) |
| 4065 | { |
| 4066 | f->phys_cursor_glyph |
| 4067 | = ((current_glyphs->enable[curs_y] |
| 4068 | && curs_x < current_glyphs->used[curs_y]) |
| 4069 | ? current_glyphs->glyphs[curs_y][curs_x] |
| 4070 | : SPACEGLYPH); |
| 4071 | XFillRectangle (x_current_display, FRAME_X_WINDOW (f), |
| 4072 | f->display.x->cursor_gc, |
| 4073 | CHAR_TO_PIXEL_COL (f, curs_x), |
| 4074 | CHAR_TO_PIXEL_ROW (f, curs_y), |
| 4075 | 1, f->display.x->line_height); |
| 4076 | |
| 4077 | f->phys_cursor_x = curs_x; |
| 4078 | f->phys_cursor_y = curs_y; |
| 4079 | |
| 4080 | f->display.x->current_cursor = bar_cursor; |
| 4081 | } |
| 4082 | |
| 4083 | if (updating_frame != f) |
| 4084 | XFlushQueue (); |
| 4085 | } |
| 4086 | |
| 4087 | |
| 4088 | /* Turn the displayed cursor of frame F on or off according to ON. |
| 4089 | If ON is nonzero, where to put the cursor is specified |
| 4090 | by F->cursor_x and F->cursor_y. */ |
| 4091 | |
| 4092 | static void |
| 4093 | x_display_box_cursor (f, on) |
| 4094 | struct frame *f; |
| 4095 | int on; |
| 4096 | { |
| 4097 | struct frame_glyphs *current_glyphs = FRAME_CURRENT_GLYPHS (f); |
| 4098 | |
| 4099 | /* This is pointless on invisible frames, and dangerous on garbaged |
| 4100 | frames; in the latter case, the frame may be in the midst of |
| 4101 | changing its size, and curs_x and curs_y may be off the frame. */ |
| 4102 | if (! FRAME_VISIBLE_P (f) || FRAME_GARBAGED_P (f)) |
| 4103 | return; |
| 4104 | |
| 4105 | /* If cursor is off and we want it off, return quickly. */ |
| 4106 | if (!on && f->phys_cursor_x < 0) |
| 4107 | return; |
| 4108 | |
| 4109 | /* If we're not updating, then we want to use the current frame's |
| 4110 | cursor position, not our local idea of where the cursor ought to be. */ |
| 4111 | if (f != updating_frame) |
| 4112 | { |
| 4113 | curs_x = FRAME_CURSOR_X (f); |
| 4114 | curs_y = FRAME_CURSOR_Y (f); |
| 4115 | } |
| 4116 | |
| 4117 | /* If cursor is currently being shown and we don't want it to be |
| 4118 | or it is in the wrong place, |
| 4119 | or we want a hollow box and it's not so, (pout!) |
| 4120 | erase it. */ |
| 4121 | if (f->phys_cursor_x >= 0 |
| 4122 | && (!on |
| 4123 | || f->phys_cursor_x != curs_x |
| 4124 | || f->phys_cursor_y != curs_y |
| 4125 | || (f->display.x->current_cursor != hollow_box_cursor |
| 4126 | && (f != x_highlight_frame)))) |
| 4127 | { |
| 4128 | int mouse_face_here = 0; |
| 4129 | |
| 4130 | /* If the cursor is in the mouse face area, redisplay that when |
| 4131 | we clear the cursor. */ |
| 4132 | if (f == mouse_face_mouse_frame |
| 4133 | && |
| 4134 | (f->phys_cursor_y > mouse_face_beg_row |
| 4135 | || (f->phys_cursor_y == mouse_face_beg_row |
| 4136 | && f->phys_cursor_x >= mouse_face_beg_col)) |
| 4137 | && |
| 4138 | (f->phys_cursor_y < mouse_face_end_row |
| 4139 | || (f->phys_cursor_y == mouse_face_end_row |
| 4140 | && f->phys_cursor_x < mouse_face_end_col))) |
| 4141 | mouse_face_here = 1; |
| 4142 | |
| 4143 | /* If the font is not as tall as a whole line, |
| 4144 | we must explicitly clear the line's whole height. */ |
| 4145 | if (FONT_HEIGHT (f->display.x->font) != f->display.x->line_height) |
| 4146 | XClearArea (x_current_display, FRAME_X_WINDOW (f), |
| 4147 | CHAR_TO_PIXEL_COL (f, f->phys_cursor_x), |
| 4148 | CHAR_TO_PIXEL_ROW (f, f->phys_cursor_y), |
| 4149 | FONT_WIDTH (f->display.x->font), |
| 4150 | f->display.x->line_height, False); |
| 4151 | /* Erase the cursor by redrawing the character underneath it. */ |
| 4152 | x_draw_single_glyph (f, f->phys_cursor_y, f->phys_cursor_x, |
| 4153 | f->phys_cursor_glyph, |
| 4154 | (mouse_face_here |
| 4155 | ? 3 |
| 4156 | : current_glyphs->highlight[f->phys_cursor_y])); |
| 4157 | f->phys_cursor_x = -1; |
| 4158 | } |
| 4159 | |
| 4160 | /* If we want to show a cursor, |
| 4161 | or we want a box cursor and it's not so, |
| 4162 | write it in the right place. */ |
| 4163 | if (on |
| 4164 | && (f->phys_cursor_x < 0 |
| 4165 | || (f->display.x->current_cursor != filled_box_cursor |
| 4166 | && f == x_highlight_frame))) |
| 4167 | { |
| 4168 | f->phys_cursor_glyph |
| 4169 | = ((current_glyphs->enable[curs_y] |
| 4170 | && curs_x < current_glyphs->used[curs_y]) |
| 4171 | ? current_glyphs->glyphs[curs_y][curs_x] |
| 4172 | : SPACEGLYPH); |
| 4173 | if (f != x_highlight_frame) |
| 4174 | { |
| 4175 | x_draw_box (f); |
| 4176 | f->display.x->current_cursor = hollow_box_cursor; |
| 4177 | } |
| 4178 | else |
| 4179 | { |
| 4180 | x_draw_single_glyph (f, curs_y, curs_x, |
| 4181 | f->phys_cursor_glyph, 2); |
| 4182 | f->display.x->current_cursor = filled_box_cursor; |
| 4183 | } |
| 4184 | |
| 4185 | f->phys_cursor_x = curs_x; |
| 4186 | f->phys_cursor_y = curs_y; |
| 4187 | } |
| 4188 | |
| 4189 | if (updating_frame != f) |
| 4190 | XFlushQueue (); |
| 4191 | } |
| 4192 | |
| 4193 | x_display_cursor (f, on) |
| 4194 | struct frame *f; |
| 4195 | int on; |
| 4196 | { |
| 4197 | BLOCK_INPUT; |
| 4198 | |
| 4199 | if (FRAME_DESIRED_CURSOR (f) == filled_box_cursor) |
| 4200 | x_display_box_cursor (f, on); |
| 4201 | else if (FRAME_DESIRED_CURSOR (f) == bar_cursor) |
| 4202 | x_display_bar_cursor (f, on); |
| 4203 | else |
| 4204 | /* Those are the only two we have implemented! */ |
| 4205 | abort (); |
| 4206 | |
| 4207 | UNBLOCK_INPUT; |
| 4208 | } |
| 4209 | \f |
| 4210 | /* Icons. */ |
| 4211 | |
| 4212 | /* Refresh bitmap kitchen sink icon for frame F |
| 4213 | when we get an expose event for it. */ |
| 4214 | |
| 4215 | refreshicon (f) |
| 4216 | struct frame *f; |
| 4217 | { |
| 4218 | /* Normally, the window manager handles this function. */ |
| 4219 | } |
| 4220 | |
| 4221 | /* Make the x-window of frame F use the gnu icon bitmap. */ |
| 4222 | |
| 4223 | int |
| 4224 | x_bitmap_icon (f) |
| 4225 | struct frame *f; |
| 4226 | { |
| 4227 | int mask; |
| 4228 | Window icon_window; |
| 4229 | |
| 4230 | if (FRAME_X_WINDOW (f) == 0) |
| 4231 | return 1; |
| 4232 | |
| 4233 | if (! icon_bitmap) |
| 4234 | icon_bitmap = |
| 4235 | XCreateBitmapFromData (x_current_display, FRAME_X_WINDOW (f), |
| 4236 | gnu_bits, gnu_width, gnu_height); |
| 4237 | x_wm_set_icon_pixmap (f, icon_bitmap); |
| 4238 | f->display.x->icon_bitmap_flag = 1; |
| 4239 | |
| 4240 | return 0; |
| 4241 | } |
| 4242 | |
| 4243 | |
| 4244 | /* Make the x-window of frame F use a rectangle with text. */ |
| 4245 | |
| 4246 | int |
| 4247 | x_text_icon (f, icon_name) |
| 4248 | struct frame *f; |
| 4249 | char *icon_name; |
| 4250 | { |
| 4251 | if (FRAME_X_WINDOW (f) == 0) |
| 4252 | return 1; |
| 4253 | |
| 4254 | if (icon_name) |
| 4255 | f->display.x->icon_label = icon_name; |
| 4256 | else |
| 4257 | if (! f->display.x->icon_label) |
| 4258 | f->display.x->icon_label = " *emacs* "; |
| 4259 | |
| 4260 | #if 0 |
| 4261 | XSetIconName (x_current_display, FRAME_X_WINDOW (f), |
| 4262 | (char *) f->display.x->icon_label); |
| 4263 | #endif |
| 4264 | |
| 4265 | f->display.x->icon_bitmap_flag = 0; |
| 4266 | x_wm_set_icon_pixmap (f, 0); |
| 4267 | |
| 4268 | return 0; |
| 4269 | } |
| 4270 | \f |
| 4271 | /* Handling X errors. */ |
| 4272 | |
| 4273 | /* Shut down Emacs in an orderly fashion, because of a SIGPIPE on the |
| 4274 | X server's connection, or an error reported via the X protocol. */ |
| 4275 | |
| 4276 | static SIGTYPE |
| 4277 | x_connection_closed () |
| 4278 | { |
| 4279 | if (_Xdebug) |
| 4280 | abort (); |
| 4281 | |
| 4282 | shut_down_emacs (0, 1, Qnil); |
| 4283 | |
| 4284 | exit (70); |
| 4285 | } |
| 4286 | |
| 4287 | /* An X error handler which prints an error message and then kills |
| 4288 | Emacs. This is what's normally installed as Xlib's handler for |
| 4289 | protocol errors. */ |
| 4290 | static int |
| 4291 | x_error_quitter (display, error) |
| 4292 | Display *display; |
| 4293 | XErrorEvent *error; |
| 4294 | { |
| 4295 | char buf[256]; |
| 4296 | |
| 4297 | /* Note that there is no real way portable across R3/R4 to get the |
| 4298 | original error handler. */ |
| 4299 | |
| 4300 | XGetErrorText (display, error->error_code, buf, sizeof (buf)); |
| 4301 | fprintf (stderr, "X protocol error: %s on protocol request %d\n", |
| 4302 | buf, error->request_code); |
| 4303 | |
| 4304 | #if 0 |
| 4305 | /* While we're testing Emacs 19, we'll just dump core whenever we |
| 4306 | get an X error, so we can figure out why it happened. */ |
| 4307 | abort (); |
| 4308 | #endif |
| 4309 | |
| 4310 | x_connection_closed (); |
| 4311 | } |
| 4312 | |
| 4313 | /* A handler for X IO errors which prints an error message and then |
| 4314 | kills Emacs. This is what is always installed as Xlib's handler |
| 4315 | for I/O errors. */ |
| 4316 | static int |
| 4317 | x_io_error_quitter (display) |
| 4318 | Display *display; |
| 4319 | { |
| 4320 | fprintf (stderr, "Connection to X server %s lost.\n", |
| 4321 | XDisplayName (DisplayString (display))); |
| 4322 | |
| 4323 | #if 0 |
| 4324 | /* While we're testing Emacs 19, we'll just dump core whenever we |
| 4325 | get an X error, so we can figure out why it happened. */ |
| 4326 | abort (); |
| 4327 | #endif |
| 4328 | |
| 4329 | x_connection_closed (); |
| 4330 | } |
| 4331 | |
| 4332 | /* A buffer for storing X error messages. */ |
| 4333 | static char *x_caught_error_message; |
| 4334 | #define X_CAUGHT_ERROR_MESSAGE_SIZE 200 |
| 4335 | |
| 4336 | /* An X error handler which stores the error message in |
| 4337 | x_caught_error_message. This is what's installed when |
| 4338 | x_catch_errors is in effect. */ |
| 4339 | static int |
| 4340 | x_error_catcher (display, error) |
| 4341 | Display *display; |
| 4342 | XErrorEvent *error; |
| 4343 | { |
| 4344 | XGetErrorText (display, error->error_code, |
| 4345 | x_caught_error_message, X_CAUGHT_ERROR_MESSAGE_SIZE); |
| 4346 | } |
| 4347 | |
| 4348 | |
| 4349 | /* Begin trapping X errors. |
| 4350 | |
| 4351 | After calling this function, X protocol errors no longer cause |
| 4352 | Emacs to exit; instead, they are recorded in x_cfc_error_message. |
| 4353 | |
| 4354 | Calling x_check_errors signals an Emacs error if an X error has |
| 4355 | occurred since the last call to x_catch_errors or x_check_errors. |
| 4356 | |
| 4357 | Calling x_uncatch_errors resumes the normal error handling. */ |
| 4358 | |
| 4359 | void x_catch_errors (), x_check_errors (), x_uncatch_errors (); |
| 4360 | |
| 4361 | void |
| 4362 | x_catch_errors () |
| 4363 | { |
| 4364 | /* Make sure any errors from previous requests have been dealt with. */ |
| 4365 | XSync (x_current_display, False); |
| 4366 | |
| 4367 | /* Set up the error buffer. */ |
| 4368 | x_caught_error_message |
| 4369 | = (char*) xmalloc (X_CAUGHT_ERROR_MESSAGE_SIZE); |
| 4370 | x_caught_error_message[0] = '\0'; |
| 4371 | |
| 4372 | /* Install our little error handler. */ |
| 4373 | XHandleError (x_error_catcher); |
| 4374 | } |
| 4375 | |
| 4376 | /* If any X protocol errors have arrived since the last call to |
| 4377 | x_catch_errors or x_check_errors, signal an Emacs error using |
| 4378 | sprintf (a buffer, FORMAT, the x error message text) as the text. */ |
| 4379 | |
| 4380 | void |
| 4381 | x_check_errors (format) |
| 4382 | char *format; |
| 4383 | { |
| 4384 | /* Make sure to catch any errors incurred so far. */ |
| 4385 | XSync (x_current_display, False); |
| 4386 | |
| 4387 | if (x_caught_error_message[0]) |
| 4388 | { |
| 4389 | char buf[X_CAUGHT_ERROR_MESSAGE_SIZE + 56]; |
| 4390 | |
| 4391 | sprintf (buf, format, x_caught_error_message); |
| 4392 | x_uncatch_errors (); |
| 4393 | error (buf); |
| 4394 | } |
| 4395 | } |
| 4396 | |
| 4397 | /* Nonzero if we had any X protocol errors since we did x_catch_errors. */ |
| 4398 | |
| 4399 | int |
| 4400 | x_had_errors_p () |
| 4401 | { |
| 4402 | /* Make sure to catch any errors incurred so far. */ |
| 4403 | XSync (x_current_display, False); |
| 4404 | |
| 4405 | return x_caught_error_message[0] != 0; |
| 4406 | } |
| 4407 | |
| 4408 | /* Stop catching X protocol errors and let them make Emacs die. */ |
| 4409 | |
| 4410 | void |
| 4411 | x_uncatch_errors () |
| 4412 | { |
| 4413 | xfree (x_caught_error_message); |
| 4414 | x_caught_error_message = 0; |
| 4415 | XHandleError (x_error_quitter); |
| 4416 | } |
| 4417 | |
| 4418 | #if 0 |
| 4419 | static unsigned int x_wire_count; |
| 4420 | x_trace_wire () |
| 4421 | { |
| 4422 | fprintf (stderr, "Lib call: %d\n", ++x_wire_count); |
| 4423 | } |
| 4424 | #endif /* ! 0 */ |
| 4425 | |
| 4426 | \f |
| 4427 | /* Changing the font of the frame. */ |
| 4428 | |
| 4429 | /* Set the font of the x-window specified by frame F |
| 4430 | to the font named NEWNAME. This is safe to use |
| 4431 | even before F has an actual x-window. */ |
| 4432 | |
| 4433 | struct font_info |
| 4434 | { |
| 4435 | XFontStruct *font; |
| 4436 | char *name; |
| 4437 | char *full_name; |
| 4438 | }; |
| 4439 | |
| 4440 | /* A table of all the fonts we have already loaded. */ |
| 4441 | static struct font_info *x_font_table; |
| 4442 | |
| 4443 | /* The current capacity of x_font_table. */ |
| 4444 | static int x_font_table_size; |
| 4445 | |
| 4446 | /* The number of fonts actually stored in x_font_table. |
| 4447 | x_font_table[n] is used and valid iff 0 <= n < n_fonts. |
| 4448 | 0 <= n_fonts <= x_font_table_size. */ |
| 4449 | static int n_fonts; |
| 4450 | |
| 4451 | /* Give frame F the font named FONTNAME as its default font, and |
| 4452 | return the full name of that font. FONTNAME may be a wildcard |
| 4453 | pattern; in that case, we choose some font that fits the pattern. |
| 4454 | The return value shows which font we chose. */ |
| 4455 | |
| 4456 | Lisp_Object |
| 4457 | x_new_font (f, fontname) |
| 4458 | struct frame *f; |
| 4459 | register char *fontname; |
| 4460 | { |
| 4461 | int already_loaded; |
| 4462 | int n_matching_fonts; |
| 4463 | XFontStruct *font_info; |
| 4464 | char **font_names; |
| 4465 | |
| 4466 | /* Get a list of all the fonts that match this name. Once we |
| 4467 | have a list of matching fonts, we compare them against the fonts |
| 4468 | we already have by comparing font ids. */ |
| 4469 | font_names = (char **) XListFonts (x_current_display, fontname, |
| 4470 | 1024, &n_matching_fonts); |
| 4471 | /* Apparently it doesn't set n_matching_fonts to zero when it can't |
| 4472 | find any matches; font_names == 0 is the only clue. */ |
| 4473 | if (! font_names) |
| 4474 | n_matching_fonts = 0; |
| 4475 | |
| 4476 | /* Don't just give up if n_matching_fonts is 0. |
| 4477 | Apparently there's a bug on Suns: XListFontsWithInfo can |
| 4478 | fail to find a font, but XLoadQueryFont may still find it. */ |
| 4479 | |
| 4480 | /* See if we've already loaded a matching font. */ |
| 4481 | already_loaded = -1; |
| 4482 | if (n_matching_fonts != 0) |
| 4483 | { |
| 4484 | int i, j; |
| 4485 | |
| 4486 | for (i = 0; i < n_fonts; i++) |
| 4487 | for (j = 0; j < n_matching_fonts; j++) |
| 4488 | if (!strcmp (x_font_table[i].name, font_names[j]) |
| 4489 | || !strcmp (x_font_table[i].full_name, font_names[j])) |
| 4490 | { |
| 4491 | already_loaded = i; |
| 4492 | fontname = x_font_table[i].full_name; |
| 4493 | goto found_font; |
| 4494 | } |
| 4495 | } |
| 4496 | found_font: |
| 4497 | |
| 4498 | /* If we have, just return it from the table. */ |
| 4499 | if (already_loaded >= 0) |
| 4500 | { |
| 4501 | int wid; |
| 4502 | f->display.x->font = x_font_table[already_loaded].font; |
| 4503 | wid = FONT_WIDTH (f->display.x->font); |
| 4504 | f->scroll_bar_cols = (f->scroll_bar_pixel_width + wid-1) / wid; |
| 4505 | } |
| 4506 | /* Otherwise, load the font and add it to the table. */ |
| 4507 | else |
| 4508 | { |
| 4509 | int i; |
| 4510 | char *full_name; |
| 4511 | XFontStruct *font; |
| 4512 | |
| 4513 | /* Try to find a character-cell font in the list. */ |
| 4514 | #if 0 |
| 4515 | /* A laudable goal, but this isn't how to do it. */ |
| 4516 | for (i = 0; i < n_matching_fonts; i++) |
| 4517 | if (! font_info[i].per_char) |
| 4518 | break; |
| 4519 | #else |
| 4520 | i = 0; |
| 4521 | #endif |
| 4522 | |
| 4523 | /* See comment above. */ |
| 4524 | if (n_matching_fonts != 0) |
| 4525 | fontname = font_names[i]; |
| 4526 | |
| 4527 | font = (XFontStruct *) XLoadQueryFont (x_current_display, fontname); |
| 4528 | if (! font) |
| 4529 | { |
| 4530 | /* Free the information from XListFonts. */ |
| 4531 | if (n_matching_fonts) |
| 4532 | XFreeFontNames (font_names); |
| 4533 | return Qnil; |
| 4534 | } |
| 4535 | |
| 4536 | /* Do we need to create the table? */ |
| 4537 | if (x_font_table_size == 0) |
| 4538 | { |
| 4539 | x_font_table_size = 16; |
| 4540 | x_font_table |
| 4541 | = (struct font_info *) xmalloc (x_font_table_size |
| 4542 | * sizeof (x_font_table[0])); |
| 4543 | } |
| 4544 | /* Do we need to grow the table? */ |
| 4545 | else if (n_fonts >= x_font_table_size) |
| 4546 | { |
| 4547 | x_font_table_size *= 2; |
| 4548 | x_font_table |
| 4549 | = (struct font_info *) xrealloc (x_font_table, |
| 4550 | (x_font_table_size |
| 4551 | * sizeof (x_font_table[0]))); |
| 4552 | } |
| 4553 | |
| 4554 | /* Try to get the full name of FONT. Put it in full_name. */ |
| 4555 | full_name = 0; |
| 4556 | for (i = 0; i < font->n_properties; i++) |
| 4557 | { |
| 4558 | char *atom |
| 4559 | = XGetAtomName (x_current_display, font->properties[i].name); |
| 4560 | if (!strcmp (atom, "FONT")) |
| 4561 | full_name = XGetAtomName (x_current_display, |
| 4562 | (Atom) (font->properties[i].card32)); |
| 4563 | XFree (atom); |
| 4564 | } |
| 4565 | |
| 4566 | x_font_table[n_fonts].name = (char *) xmalloc (strlen (fontname) + 1); |
| 4567 | bcopy (fontname, x_font_table[n_fonts].name, strlen (fontname) + 1); |
| 4568 | if (full_name != 0) |
| 4569 | x_font_table[n_fonts].full_name = full_name; |
| 4570 | else |
| 4571 | x_font_table[n_fonts].full_name = x_font_table[n_fonts].name; |
| 4572 | f->display.x->font = x_font_table[n_fonts++].font = font; |
| 4573 | |
| 4574 | if (full_name) |
| 4575 | fontname = full_name; |
| 4576 | { |
| 4577 | int wid = FONT_WIDTH (f->display.x->font); |
| 4578 | f->scroll_bar_cols = (f->scroll_bar_pixel_width + wid-1) / wid; |
| 4579 | } |
| 4580 | } |
| 4581 | |
| 4582 | /* Now make the frame display the given font. */ |
| 4583 | if (FRAME_X_WINDOW (f) != 0) |
| 4584 | { |
| 4585 | XSetFont (x_current_display, f->display.x->normal_gc, |
| 4586 | f->display.x->font->fid); |
| 4587 | XSetFont (x_current_display, f->display.x->reverse_gc, |
| 4588 | f->display.x->font->fid); |
| 4589 | XSetFont (x_current_display, f->display.x->cursor_gc, |
| 4590 | f->display.x->font->fid); |
| 4591 | |
| 4592 | frame_update_line_height (f); |
| 4593 | x_set_window_size (f, 0, f->width, f->height); |
| 4594 | } |
| 4595 | else |
| 4596 | /* If we are setting a new frame's font for the first time, |
| 4597 | there are no faces yet, so this font's height is the line height. */ |
| 4598 | f->display.x->line_height = FONT_HEIGHT (f->display.x->font); |
| 4599 | |
| 4600 | { |
| 4601 | Lisp_Object lispy_name; |
| 4602 | |
| 4603 | lispy_name = build_string (fontname); |
| 4604 | |
| 4605 | /* Free the information from XListFonts. The data |
| 4606 | we actually retain comes from XLoadQueryFont. */ |
| 4607 | XFreeFontNames (font_names); |
| 4608 | |
| 4609 | return lispy_name; |
| 4610 | } |
| 4611 | } |
| 4612 | \f |
| 4613 | x_calc_absolute_position (f) |
| 4614 | struct frame *f; |
| 4615 | { |
| 4616 | Window win, child; |
| 4617 | int win_x = 0, win_y = 0; |
| 4618 | int flags = f->display.x->size_hint_flags; |
| 4619 | |
| 4620 | /* Find the position of the outside upper-left corner of |
| 4621 | the inner window, with respect to the outer window. */ |
| 4622 | if (f->display.x->parent_desc != ROOT_WINDOW) |
| 4623 | { |
| 4624 | BLOCK_INPUT; |
| 4625 | XTranslateCoordinates (x_current_display, |
| 4626 | |
| 4627 | /* From-window, to-window. */ |
| 4628 | f->display.x->window_desc, |
| 4629 | f->display.x->parent_desc, |
| 4630 | |
| 4631 | /* From-position, to-position. */ |
| 4632 | 0, 0, &win_x, &win_y, |
| 4633 | |
| 4634 | /* Child of win. */ |
| 4635 | &child); |
| 4636 | UNBLOCK_INPUT; |
| 4637 | } |
| 4638 | |
| 4639 | /* Treat negative positions as relative to the leftmost bottommost |
| 4640 | position that fits on the screen. */ |
| 4641 | if (flags & XNegative) |
| 4642 | f->display.x->left_pos = (x_screen_width |
| 4643 | - 2 * f->display.x->border_width - win_x |
| 4644 | - PIXEL_WIDTH (f) |
| 4645 | + f->display.x->left_pos); |
| 4646 | |
| 4647 | if (flags & YNegative) |
| 4648 | f->display.x->top_pos = (x_screen_height |
| 4649 | - 2 * f->display.x->border_width - win_y |
| 4650 | - PIXEL_HEIGHT (f) |
| 4651 | + f->display.x->top_pos); |
| 4652 | /* The left_pos and top_pos |
| 4653 | are now relative to the top and left screen edges, |
| 4654 | so the flags should correspond. */ |
| 4655 | f->display.x->size_hint_flags &= ~ (XNegative | YNegative); |
| 4656 | } |
| 4657 | |
| 4658 | /* CHANGE_GRAVITY is 1 when calling from Fset_frame_position, |
| 4659 | to really change the position, and 0 when calling from |
| 4660 | x_make_frame_visible (in that case, XOFF and YOFF are the current |
| 4661 | position values). */ |
| 4662 | |
| 4663 | x_set_offset (f, xoff, yoff, change_gravity) |
| 4664 | struct frame *f; |
| 4665 | register int xoff, yoff; |
| 4666 | int change_gravity; |
| 4667 | { |
| 4668 | if (change_gravity) |
| 4669 | { |
| 4670 | f->display.x->top_pos = yoff; |
| 4671 | f->display.x->left_pos = xoff; |
| 4672 | f->display.x->size_hint_flags &= ~ (XNegative | YNegative); |
| 4673 | if (xoff < 0) |
| 4674 | f->display.x->size_hint_flags |= XNegative; |
| 4675 | if (yoff < 0) |
| 4676 | f->display.x->size_hint_flags |= YNegative; |
| 4677 | f->display.x->win_gravity = NorthWestGravity; |
| 4678 | } |
| 4679 | x_calc_absolute_position (f); |
| 4680 | |
| 4681 | BLOCK_INPUT; |
| 4682 | x_wm_set_size_hint (f, 0, 0); |
| 4683 | |
| 4684 | #ifdef USE_X_TOOLKIT |
| 4685 | XMoveWindow (XDISPLAY XtWindow (f->display.x->widget), |
| 4686 | f->display.x->left_pos, f->display.x->top_pos); |
| 4687 | #else /* not USE_X_TOOLKIT */ |
| 4688 | XMoveWindow (XDISPLAY FRAME_X_WINDOW (f), |
| 4689 | f->display.x->left_pos, f->display.x->top_pos); |
| 4690 | #endif /* not USE_X_TOOLKIT */ |
| 4691 | UNBLOCK_INPUT; |
| 4692 | } |
| 4693 | |
| 4694 | /* Call this to change the size of frame F's x-window. |
| 4695 | If CHANGE_GRAVITY is 1, we change to top-left-corner window gravity |
| 4696 | for this size change and subsequent size changes. |
| 4697 | Otherwise we leave the window gravity unchanged. */ |
| 4698 | |
| 4699 | x_set_window_size (f, change_gravity, cols, rows) |
| 4700 | struct frame *f; |
| 4701 | int change_gravity; |
| 4702 | int cols, rows; |
| 4703 | { |
| 4704 | int pixelwidth, pixelheight; |
| 4705 | int mask; |
| 4706 | |
| 4707 | #ifdef USE_X_TOOLKIT |
| 4708 | BLOCK_INPUT; |
| 4709 | { |
| 4710 | /* The x and y position of the widget is clobbered by the |
| 4711 | call to XtSetValues within EmacsFrameSetCharSize. |
| 4712 | This is a real kludge, but I don't understand Xt so I can't |
| 4713 | figure out a correct fix. Can anyone else tell me? -- rms. */ |
| 4714 | int xpos = f->display.x->widget->core.x; |
| 4715 | int ypos = f->display.x->widget->core.y; |
| 4716 | EmacsFrameSetCharSize (f->display.x->edit_widget, cols, rows); |
| 4717 | f->display.x->widget->core.x = xpos; |
| 4718 | f->display.x->widget->core.y = ypos; |
| 4719 | } |
| 4720 | UNBLOCK_INPUT; |
| 4721 | |
| 4722 | #else /* not USE_X_TOOLKIT */ |
| 4723 | |
| 4724 | BLOCK_INPUT; |
| 4725 | |
| 4726 | check_frame_size (f, &rows, &cols); |
| 4727 | f->display.x->vertical_scroll_bar_extra |
| 4728 | = (FRAME_HAS_VERTICAL_SCROLL_BARS (f) |
| 4729 | ? FRAME_SCROLL_BAR_PIXEL_WIDTH (f) |
| 4730 | : 0); |
| 4731 | pixelwidth = CHAR_TO_PIXEL_WIDTH (f, cols); |
| 4732 | pixelheight = CHAR_TO_PIXEL_HEIGHT (f, rows); |
| 4733 | |
| 4734 | f->display.x->win_gravity = NorthWestGravity; |
| 4735 | x_wm_set_size_hint (f, 0, 0); |
| 4736 | |
| 4737 | XSync (x_current_display, False); |
| 4738 | XChangeWindowSize (FRAME_X_WINDOW (f), pixelwidth, pixelheight); |
| 4739 | |
| 4740 | /* Now, strictly speaking, we can't be sure that this is accurate, |
| 4741 | but the window manager will get around to dealing with the size |
| 4742 | change request eventually, and we'll hear how it went when the |
| 4743 | ConfigureNotify event gets here. |
| 4744 | |
| 4745 | We could just not bother storing any of this information here, |
| 4746 | and let the ConfigureNotify event set everything up, but that |
| 4747 | might be kind of confusing to the lisp code, since size changes |
| 4748 | wouldn't be reported in the frame parameters until some random |
| 4749 | point in the future when the ConfigureNotify event arrives. */ |
| 4750 | change_frame_size (f, rows, cols, 0, 0); |
| 4751 | PIXEL_WIDTH (f) = pixelwidth; |
| 4752 | PIXEL_HEIGHT (f) = pixelheight; |
| 4753 | |
| 4754 | /* If cursor was outside the new size, mark it as off. */ |
| 4755 | if (f->phys_cursor_y >= rows |
| 4756 | || f->phys_cursor_x >= cols) |
| 4757 | { |
| 4758 | f->phys_cursor_x = -1; |
| 4759 | f->phys_cursor_y = -1; |
| 4760 | } |
| 4761 | |
| 4762 | /* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to |
| 4763 | receive in the ConfigureNotify event; if we get what we asked |
| 4764 | for, then the event won't cause the screen to become garbaged, so |
| 4765 | we have to make sure to do it here. */ |
| 4766 | SET_FRAME_GARBAGED (f); |
| 4767 | |
| 4768 | XFlushQueue (); |
| 4769 | UNBLOCK_INPUT; |
| 4770 | #endif /* not USE_X_TOOLKIT */ |
| 4771 | } |
| 4772 | \f |
| 4773 | /* Mouse warping, focus shifting, raising and lowering. */ |
| 4774 | |
| 4775 | void |
| 4776 | x_set_mouse_position (f, x, y) |
| 4777 | struct frame *f; |
| 4778 | int x, y; |
| 4779 | { |
| 4780 | int pix_x, pix_y; |
| 4781 | |
| 4782 | pix_x = CHAR_TO_PIXEL_COL (f, x) + FONT_WIDTH (f->display.x->font) / 2; |
| 4783 | pix_y = CHAR_TO_PIXEL_ROW (f, y) + f->display.x->line_height / 2; |
| 4784 | |
| 4785 | if (pix_x < 0) pix_x = 0; |
| 4786 | if (pix_x > PIXEL_WIDTH (f)) pix_x = PIXEL_WIDTH (f); |
| 4787 | |
| 4788 | if (pix_y < 0) pix_y = 0; |
| 4789 | if (pix_y > PIXEL_HEIGHT (f)) pix_y = PIXEL_HEIGHT (f); |
| 4790 | |
| 4791 | BLOCK_INPUT; |
| 4792 | |
| 4793 | XWarpMousePointer (FRAME_X_WINDOW (f), pix_x, pix_y); |
| 4794 | UNBLOCK_INPUT; |
| 4795 | } |
| 4796 | |
| 4797 | /* Move the mouse to position pixel PIX_X, PIX_Y relative to frame F. */ |
| 4798 | |
| 4799 | void |
| 4800 | x_set_mouse_pixel_position (f, pix_x, pix_y) |
| 4801 | struct frame *f; |
| 4802 | int pix_x, pix_y; |
| 4803 | { |
| 4804 | BLOCK_INPUT; |
| 4805 | |
| 4806 | XWarpMousePointer (FRAME_X_WINDOW (f), pix_x, pix_y); |
| 4807 | UNBLOCK_INPUT; |
| 4808 | } |
| 4809 | |
| 4810 | x_focus_on_frame (f) |
| 4811 | struct frame *f; |
| 4812 | { |
| 4813 | #if 0 /* This proves to be unpleasant. */ |
| 4814 | x_raise_frame (f); |
| 4815 | #endif |
| 4816 | #if 0 |
| 4817 | /* I don't think that the ICCCM allows programs to do things like this |
| 4818 | without the interaction of the window manager. Whatever you end up |
| 4819 | doing with this code, do it to x_unfocus_frame too. */ |
| 4820 | XSetInputFocus (x_current_display, FRAME_X_WINDOW (f), |
| 4821 | RevertToPointerRoot, CurrentTime); |
| 4822 | #endif /* ! 0 */ |
| 4823 | } |
| 4824 | |
| 4825 | x_unfocus_frame (f) |
| 4826 | struct frame *f; |
| 4827 | { |
| 4828 | #if 0 |
| 4829 | /* Look at the remarks in x_focus_on_frame. */ |
| 4830 | if (x_focus_frame == f) |
| 4831 | XSetInputFocus (x_current_display, PointerRoot, |
| 4832 | RevertToPointerRoot, CurrentTime); |
| 4833 | #endif /* ! 0 */ |
| 4834 | } |
| 4835 | |
| 4836 | /* Raise frame F. */ |
| 4837 | |
| 4838 | x_raise_frame (f) |
| 4839 | struct frame *f; |
| 4840 | { |
| 4841 | if (f->async_visible) |
| 4842 | { |
| 4843 | BLOCK_INPUT; |
| 4844 | #ifdef USE_X_TOOLKIT |
| 4845 | XRaiseWindow (XDISPLAY XtWindow (f->display.x->widget)); |
| 4846 | #else /* not USE_X_TOOLKIT */ |
| 4847 | XRaiseWindow (XDISPLAY FRAME_X_WINDOW (f)); |
| 4848 | #endif /* not USE_X_TOOLKIT */ |
| 4849 | XFlushQueue (); |
| 4850 | UNBLOCK_INPUT; |
| 4851 | } |
| 4852 | } |
| 4853 | |
| 4854 | /* Lower frame F. */ |
| 4855 | |
| 4856 | x_lower_frame (f) |
| 4857 | struct frame *f; |
| 4858 | { |
| 4859 | if (f->async_visible) |
| 4860 | { |
| 4861 | BLOCK_INPUT; |
| 4862 | #ifdef USE_X_TOOLKIT |
| 4863 | XLowerWindow (XDISPLAY XtWindow (f->display.x->widget)); |
| 4864 | #else /* not USE_X_TOOLKIT */ |
| 4865 | XLowerWindow (XDISPLAY FRAME_X_WINDOW (f)); |
| 4866 | #endif /* not USE_X_TOOLKIT */ |
| 4867 | XFlushQueue (); |
| 4868 | UNBLOCK_INPUT; |
| 4869 | } |
| 4870 | } |
| 4871 | |
| 4872 | static void |
| 4873 | XTframe_raise_lower (f, raise) |
| 4874 | FRAME_PTR f; |
| 4875 | int raise; |
| 4876 | { |
| 4877 | if (raise) |
| 4878 | x_raise_frame (f); |
| 4879 | else |
| 4880 | x_lower_frame (f); |
| 4881 | } |
| 4882 | |
| 4883 | |
| 4884 | /* Change from withdrawn state to mapped state, |
| 4885 | or deiconify. */ |
| 4886 | |
| 4887 | x_make_frame_visible (f) |
| 4888 | struct frame *f; |
| 4889 | { |
| 4890 | int mask; |
| 4891 | |
| 4892 | BLOCK_INPUT; |
| 4893 | |
| 4894 | if (! FRAME_VISIBLE_P (f)) |
| 4895 | { |
| 4896 | #ifndef USE_X_TOOLKIT |
| 4897 | if (! FRAME_ICONIFIED_P (f)) |
| 4898 | x_set_offset (f, f->display.x->left_pos, f->display.x->top_pos, 0); |
| 4899 | #endif |
| 4900 | |
| 4901 | if (! EQ (Vx_no_window_manager, Qt)) |
| 4902 | x_wm_set_window_state (f, NormalState); |
| 4903 | #ifdef USE_X_TOOLKIT |
| 4904 | /* This was XtPopup, but that did nothing for an iconified frame. */ |
| 4905 | XtMapWidget (f->display.x->widget); |
| 4906 | #else /* not USE_X_TOOLKIT */ |
| 4907 | XMapWindow (XDISPLAY FRAME_X_WINDOW (f)); |
| 4908 | #endif /* not USE_X_TOOLKIT */ |
| 4909 | #if 0 /* This seems to bring back scroll bars in the wrong places |
| 4910 | if the window configuration has changed. They seem |
| 4911 | to come back ok without this. */ |
| 4912 | if (FRAME_HAS_VERTICAL_SCROLL_BARS (f)) |
| 4913 | XMapSubwindows (x_current_display, FRAME_X_WINDOW (f)); |
| 4914 | #endif |
| 4915 | } |
| 4916 | |
| 4917 | XFlushQueue (); |
| 4918 | |
| 4919 | UNBLOCK_INPUT; |
| 4920 | |
| 4921 | /* Synchronize to ensure Emacs knows the frame is visible |
| 4922 | before we do anything else. We do this loop with input not blocked |
| 4923 | so that incoming events are handled. */ |
| 4924 | { |
| 4925 | Lisp_Object frame; |
| 4926 | XSET (frame, Lisp_Frame, f); |
| 4927 | while (! f->async_visible) |
| 4928 | { |
| 4929 | x_sync (frame); |
| 4930 | /* Machines that do polling rather than SIGIO have been observed |
| 4931 | to go into a busy-wait here. So we'll fake an alarm signal |
| 4932 | to let the handler know that there's something to be read. |
| 4933 | We used to raise a real alarm, but it seems that the handler |
| 4934 | isn't always enabled here. This is probably a bug. */ |
| 4935 | if (input_polling_used ()) |
| 4936 | { |
| 4937 | /* It could be confusing if a real alarm arrives while processing |
| 4938 | the fake one. Turn it off and let the handler reset it. */ |
| 4939 | alarm (0); |
| 4940 | input_poll_signal (); |
| 4941 | } |
| 4942 | } |
| 4943 | FRAME_SAMPLE_VISIBILITY (f); |
| 4944 | } |
| 4945 | } |
| 4946 | |
| 4947 | /* Change from mapped state to withdrawn state. */ |
| 4948 | |
| 4949 | x_make_frame_invisible (f) |
| 4950 | struct frame *f; |
| 4951 | { |
| 4952 | int mask; |
| 4953 | Window window; |
| 4954 | |
| 4955 | #ifdef USE_X_TOOLKIT |
| 4956 | /* Use the frame's outermost window, not the one we normally draw on. */ |
| 4957 | window = XtWindow (f->display.x->widget); |
| 4958 | #else /* not USE_X_TOOLKIT */ |
| 4959 | window = FRAME_X_WINDOW (f); |
| 4960 | #endif /* not USE_X_TOOLKIT */ |
| 4961 | |
| 4962 | /* Don't keep the highlight on an invisible frame. */ |
| 4963 | if (x_highlight_frame == f) |
| 4964 | x_highlight_frame = 0; |
| 4965 | |
| 4966 | #if 0/* This might add unreliability; I don't trust it -- rms. */ |
| 4967 | if (! f->async_visible && ! f->async_iconified) |
| 4968 | return; |
| 4969 | #endif |
| 4970 | |
| 4971 | BLOCK_INPUT; |
| 4972 | |
| 4973 | /* Before unmapping the window, update the WM_SIZE_HINTS property to claim |
| 4974 | that the current position of the window is user-specified, rather than |
| 4975 | program-specified, so that when the window is mapped again, it will be |
| 4976 | placed at the same location, without forcing the user to position it |
| 4977 | by hand again (they have already done that once for this window.) */ |
| 4978 | x_wm_set_size_hint (f, 0, 1); |
| 4979 | |
| 4980 | #ifdef HAVE_X11R4 |
| 4981 | |
| 4982 | if (! XWithdrawWindow (x_current_display, window, |
| 4983 | DefaultScreen (x_current_display))) |
| 4984 | { |
| 4985 | UNBLOCK_INPUT_RESIGNAL; |
| 4986 | error ("Can't notify window manager of window withdrawal"); |
| 4987 | } |
| 4988 | #else /* ! defined (HAVE_X11R4) */ |
| 4989 | |
| 4990 | /* Tell the window manager what we're going to do. */ |
| 4991 | if (! EQ (Vx_no_window_manager, Qt)) |
| 4992 | { |
| 4993 | XEvent unmap; |
| 4994 | |
| 4995 | unmap.xunmap.type = UnmapNotify; |
| 4996 | unmap.xunmap.window = window; |
| 4997 | unmap.xunmap.event = DefaultRootWindow (x_current_display); |
| 4998 | unmap.xunmap.from_configure = False; |
| 4999 | if (! XSendEvent (x_current_display, |
| 5000 | DefaultRootWindow (x_current_display), |
| 5001 | False, |
| 5002 | SubstructureRedirectMask|SubstructureNotifyMask, |
| 5003 | &unmap)) |
| 5004 | { |
| 5005 | UNBLOCK_INPUT_RESIGNAL; |
| 5006 | error ("Can't notify window manager of withdrawal"); |
| 5007 | } |
| 5008 | } |
| 5009 | |
| 5010 | /* Unmap the window ourselves. Cheeky! */ |
| 5011 | XUnmapWindow (x_current_display, window); |
| 5012 | #endif /* ! defined (HAVE_X11R4) */ |
| 5013 | |
| 5014 | /* We can't distinguish this from iconification |
| 5015 | just by the event that we get from the server. |
| 5016 | So we can't win using the usual strategy of letting |
| 5017 | FRAME_SAMPLE_VISIBILITY set this. So do it by hand, |
| 5018 | and synchronize with the server to make sure we agree. */ |
| 5019 | f->visible = 0; |
| 5020 | FRAME_ICONIFIED_P (f) = 0; |
| 5021 | f->async_visible = 0; |
| 5022 | f->async_iconified = 0; |
| 5023 | |
| 5024 | x_sync (); |
| 5025 | |
| 5026 | UNBLOCK_INPUT; |
| 5027 | } |
| 5028 | |
| 5029 | /* Change window state from mapped to iconified. */ |
| 5030 | |
| 5031 | x_iconify_frame (f) |
| 5032 | struct frame *f; |
| 5033 | { |
| 5034 | int mask; |
| 5035 | int result; |
| 5036 | |
| 5037 | /* Don't keep the highlight on an invisible frame. */ |
| 5038 | if (x_highlight_frame == f) |
| 5039 | x_highlight_frame = 0; |
| 5040 | |
| 5041 | if (f->async_iconified) |
| 5042 | return; |
| 5043 | |
| 5044 | #ifdef USE_X_TOOLKIT |
| 5045 | BLOCK_INPUT; |
| 5046 | |
| 5047 | if (! FRAME_VISIBLE_P (f)) |
| 5048 | { |
| 5049 | if (! EQ (Vx_no_window_manager, Qt)) |
| 5050 | x_wm_set_window_state (f, IconicState); |
| 5051 | /* This was XtPopup, but that did nothing for an iconified frame. */ |
| 5052 | XtMapWidget (f->display.x->widget); |
| 5053 | UNBLOCK_INPUT; |
| 5054 | return; |
| 5055 | } |
| 5056 | |
| 5057 | result = XIconifyWindow (x_current_display, |
| 5058 | XtWindow (f->display.x->widget), |
| 5059 | DefaultScreen (x_current_display)); |
| 5060 | UNBLOCK_INPUT; |
| 5061 | |
| 5062 | if (!result) |
| 5063 | error ("Can't notify window manager of iconification"); |
| 5064 | |
| 5065 | f->async_iconified = 1; |
| 5066 | |
| 5067 | BLOCK_INPUT; |
| 5068 | XFlushQueue (); |
| 5069 | UNBLOCK_INPUT; |
| 5070 | #else /* not USE_X_TOOLKIT */ |
| 5071 | |
| 5072 | BLOCK_INPUT; |
| 5073 | |
| 5074 | /* Make sure the X server knows where the window should be positioned, |
| 5075 | in case the user deiconifies with the window manager. */ |
| 5076 | if (! FRAME_VISIBLE_P (f) && !FRAME_ICONIFIED_P (f)) |
| 5077 | x_set_offset (f, f->display.x->left_pos, f->display.x->top_pos, 0); |
| 5078 | |
| 5079 | /* Since we don't know which revision of X we're running, we'll use both |
| 5080 | the X11R3 and X11R4 techniques. I don't know if this is a good idea. */ |
| 5081 | |
| 5082 | /* X11R4: send a ClientMessage to the window manager using the |
| 5083 | WM_CHANGE_STATE type. */ |
| 5084 | { |
| 5085 | XEvent message; |
| 5086 | |
| 5087 | message.xclient.window = FRAME_X_WINDOW (f); |
| 5088 | message.xclient.type = ClientMessage; |
| 5089 | message.xclient.message_type = Xatom_wm_change_state; |
| 5090 | message.xclient.format = 32; |
| 5091 | message.xclient.data.l[0] = IconicState; |
| 5092 | |
| 5093 | if (! XSendEvent (x_current_display, |
| 5094 | DefaultRootWindow (x_current_display), |
| 5095 | False, |
| 5096 | SubstructureRedirectMask | SubstructureNotifyMask, |
| 5097 | &message)) |
| 5098 | { |
| 5099 | UNBLOCK_INPUT_RESIGNAL; |
| 5100 | error ("Can't notify window manager of iconification"); |
| 5101 | } |
| 5102 | } |
| 5103 | |
| 5104 | /* X11R3: set the initial_state field of the window manager hints to |
| 5105 | IconicState. */ |
| 5106 | x_wm_set_window_state (f, IconicState); |
| 5107 | |
| 5108 | if (!FRAME_VISIBLE_P (f)) |
| 5109 | { |
| 5110 | /* If the frame was withdrawn, before, we must map it. */ |
| 5111 | XMapWindow (XDISPLAY FRAME_X_WINDOW (f)); |
| 5112 | #if 0 /* We don't have subwindows in the icon. */ |
| 5113 | if (FRAME_HAS_VERTICAL_SCROLL_BARS (f)) |
| 5114 | XMapSubwindows (x_current_display, FRAME_X_WINDOW (f)); |
| 5115 | #endif |
| 5116 | } |
| 5117 | |
| 5118 | f->async_iconified = 1; |
| 5119 | |
| 5120 | XFlushQueue (); |
| 5121 | UNBLOCK_INPUT; |
| 5122 | #endif /* not USE_X_TOOLKIT */ |
| 5123 | } |
| 5124 | |
| 5125 | /* Destroy the X window of frame F. */ |
| 5126 | |
| 5127 | x_destroy_window (f) |
| 5128 | struct frame *f; |
| 5129 | { |
| 5130 | BLOCK_INPUT; |
| 5131 | |
| 5132 | if (f->display.x->icon_desc != 0) |
| 5133 | XDestroyWindow (XDISPLAY f->display.x->icon_desc); |
| 5134 | XDestroyWindow (XDISPLAY f->display.x->window_desc); |
| 5135 | #ifdef USE_X_TOOLKIT |
| 5136 | XtDestroyWidget (f->display.x->widget); |
| 5137 | free_frame_menubar (f); |
| 5138 | #endif /* USE_X_TOOLKIT */ |
| 5139 | |
| 5140 | free_frame_faces (f); |
| 5141 | XFlushQueue (); |
| 5142 | |
| 5143 | xfree (f->display.x); |
| 5144 | f->display.x = 0; |
| 5145 | if (f == x_focus_frame) |
| 5146 | x_focus_frame = 0; |
| 5147 | if (f == x_highlight_frame) |
| 5148 | x_highlight_frame = 0; |
| 5149 | |
| 5150 | if (f == mouse_face_mouse_frame) |
| 5151 | { |
| 5152 | mouse_face_beg_row = mouse_face_beg_col = -1; |
| 5153 | mouse_face_end_row = mouse_face_end_col = -1; |
| 5154 | mouse_face_window = Qnil; |
| 5155 | } |
| 5156 | |
| 5157 | UNBLOCK_INPUT; |
| 5158 | } |
| 5159 | \f |
| 5160 | /* Setting window manager hints. */ |
| 5161 | |
| 5162 | /* Set the normal size hints for the window manager, for frame F. |
| 5163 | FLAGS is the flags word to use--or 0 meaning preserve the flags |
| 5164 | that the window now has. |
| 5165 | If USER_POSITION is nonzero, we set the USPosition |
| 5166 | flag (this is useful when FLAGS is 0). */ |
| 5167 | |
| 5168 | x_wm_set_size_hint (f, flags, user_position) |
| 5169 | struct frame *f; |
| 5170 | long flags; |
| 5171 | int user_position; |
| 5172 | { |
| 5173 | XSizeHints size_hints; |
| 5174 | |
| 5175 | #ifdef USE_X_TOOLKIT |
| 5176 | Arg al[2]; |
| 5177 | int ac = 0; |
| 5178 | Dimension widget_width, widget_height; |
| 5179 | Window window = XtWindow (f->display.x->widget); |
| 5180 | #else /* not USE_X_TOOLKIT */ |
| 5181 | Window window = FRAME_X_WINDOW (f); |
| 5182 | #endif /* not USE_X_TOOLKIT */ |
| 5183 | |
| 5184 | /* Setting PMaxSize caused various problems. */ |
| 5185 | size_hints.flags = PResizeInc | PMinSize /* | PMaxSize */; |
| 5186 | |
| 5187 | flexlines = f->height; |
| 5188 | |
| 5189 | size_hints.x = f->display.x->left_pos; |
| 5190 | size_hints.y = f->display.x->top_pos; |
| 5191 | |
| 5192 | #ifdef USE_X_TOOLKIT |
| 5193 | XtSetArg (al[ac], XtNwidth, &widget_width); ac++; |
| 5194 | XtSetArg (al[ac], XtNheight, &widget_height); ac++; |
| 5195 | XtGetValues (f->display.x->column_widget, al, ac); |
| 5196 | size_hints.height = widget_height; |
| 5197 | size_hints.width = widget_width; |
| 5198 | #else /* not USE_X_TOOLKIT */ |
| 5199 | size_hints.height = PIXEL_HEIGHT (f); |
| 5200 | size_hints.width = PIXEL_WIDTH (f); |
| 5201 | #endif /* not USE_X_TOOLKIT */ |
| 5202 | |
| 5203 | size_hints.width_inc = FONT_WIDTH (f->display.x->font); |
| 5204 | size_hints.height_inc = f->display.x->line_height; |
| 5205 | size_hints.max_width = x_screen_width - CHAR_TO_PIXEL_WIDTH (f, 0); |
| 5206 | size_hints.max_height = x_screen_height - CHAR_TO_PIXEL_HEIGHT (f, 0); |
| 5207 | |
| 5208 | { |
| 5209 | int base_width, base_height; |
| 5210 | int min_rows = 0, min_cols = 0; |
| 5211 | |
| 5212 | base_width = CHAR_TO_PIXEL_WIDTH (f, 0); |
| 5213 | base_height = CHAR_TO_PIXEL_HEIGHT (f, 0); |
| 5214 | |
| 5215 | check_frame_size (f, &min_rows, &min_cols); |
| 5216 | |
| 5217 | /* The window manager uses the base width hints to calculate the |
| 5218 | current number of rows and columns in the frame while |
| 5219 | resizing; min_width and min_height aren't useful for this |
| 5220 | purpose, since they might not give the dimensions for a |
| 5221 | zero-row, zero-column frame. |
| 5222 | |
| 5223 | We use the base_width and base_height members if we have |
| 5224 | them; otherwise, we set the min_width and min_height members |
| 5225 | to the size for a zero x zero frame. */ |
| 5226 | |
| 5227 | #ifdef HAVE_X11R4 |
| 5228 | size_hints.flags |= PBaseSize; |
| 5229 | size_hints.base_width = base_width; |
| 5230 | size_hints.base_height = base_height; |
| 5231 | size_hints.min_width = base_width + min_cols * size_hints.width_inc; |
| 5232 | size_hints.min_height = base_height + min_rows * size_hints.height_inc; |
| 5233 | #else |
| 5234 | size_hints.min_width = base_width; |
| 5235 | size_hints.min_height = base_height; |
| 5236 | #endif |
| 5237 | } |
| 5238 | |
| 5239 | if (flags) |
| 5240 | size_hints.flags |= flags; |
| 5241 | else |
| 5242 | { |
| 5243 | XSizeHints hints; /* Sometimes I hate X Windows... */ |
| 5244 | long supplied_return; |
| 5245 | int value; |
| 5246 | |
| 5247 | #ifdef HAVE_X11R4 |
| 5248 | value = XGetWMNormalHints (x_current_display, window, &hints, |
| 5249 | &supplied_return); |
| 5250 | #else |
| 5251 | value = XGetNormalHints (x_current_display, window, &hints); |
| 5252 | #endif |
| 5253 | |
| 5254 | if (value == 0) |
| 5255 | hints.flags = 0; |
| 5256 | if (hints.flags & PSize) |
| 5257 | size_hints.flags |= PSize; |
| 5258 | if (hints.flags & PPosition) |
| 5259 | size_hints.flags |= PPosition; |
| 5260 | if (hints.flags & USPosition) |
| 5261 | size_hints.flags |= USPosition; |
| 5262 | if (hints.flags & USSize) |
| 5263 | size_hints.flags |= USSize; |
| 5264 | } |
| 5265 | |
| 5266 | #ifdef PWinGravity |
| 5267 | size_hints.win_gravity = f->display.x->win_gravity; |
| 5268 | size_hints.flags |= PWinGravity; |
| 5269 | |
| 5270 | if (user_position) |
| 5271 | { |
| 5272 | size_hints.flags &= ~ PPosition; |
| 5273 | size_hints.flags |= USPosition; |
| 5274 | } |
| 5275 | #endif /* PWinGravity */ |
| 5276 | |
| 5277 | #ifdef HAVE_X11R4 |
| 5278 | XSetWMNormalHints (x_current_display, window, &size_hints); |
| 5279 | #else |
| 5280 | XSetNormalHints (x_current_display, window, &size_hints); |
| 5281 | #endif |
| 5282 | } |
| 5283 | |
| 5284 | /* Used for IconicState or NormalState */ |
| 5285 | x_wm_set_window_state (f, state) |
| 5286 | struct frame *f; |
| 5287 | int state; |
| 5288 | { |
| 5289 | #ifdef USE_X_TOOLKIT |
| 5290 | Arg al[1]; |
| 5291 | |
| 5292 | XtSetArg (al[0], XtNinitialState, state); |
| 5293 | XtSetValues (f->display.x->widget, al, 1); |
| 5294 | #else /* not USE_X_TOOLKIT */ |
| 5295 | Window window = FRAME_X_WINDOW (f); |
| 5296 | |
| 5297 | f->display.x->wm_hints.flags |= StateHint; |
| 5298 | f->display.x->wm_hints.initial_state = state; |
| 5299 | |
| 5300 | XSetWMHints (x_current_display, window, &f->display.x->wm_hints); |
| 5301 | #endif /* not USE_X_TOOLKIT */ |
| 5302 | } |
| 5303 | |
| 5304 | x_wm_set_icon_pixmap (f, icon_pixmap) |
| 5305 | struct frame *f; |
| 5306 | Pixmap icon_pixmap; |
| 5307 | { |
| 5308 | #ifdef USE_X_TOOLKIT |
| 5309 | Window window = XtWindow (f->display.x->widget); |
| 5310 | #else |
| 5311 | Window window = FRAME_X_WINDOW (f); |
| 5312 | #endif |
| 5313 | |
| 5314 | if (icon_pixmap) |
| 5315 | { |
| 5316 | f->display.x->wm_hints.icon_pixmap = icon_pixmap; |
| 5317 | f->display.x->wm_hints.flags |= IconPixmapHint; |
| 5318 | } |
| 5319 | else |
| 5320 | f->display.x->wm_hints.flags &= ~IconPixmapHint; |
| 5321 | |
| 5322 | XSetWMHints (x_current_display, window, &f->display.x->wm_hints); |
| 5323 | } |
| 5324 | |
| 5325 | x_wm_set_icon_position (f, icon_x, icon_y) |
| 5326 | struct frame *f; |
| 5327 | int icon_x, icon_y; |
| 5328 | { |
| 5329 | #ifdef USE_X_TOOLKIT |
| 5330 | Window window = XtWindow (f->display.x->widget); |
| 5331 | #else |
| 5332 | Window window = FRAME_X_WINDOW (f); |
| 5333 | #endif |
| 5334 | |
| 5335 | f->display.x->wm_hints.flags |= IconPositionHint; |
| 5336 | f->display.x->wm_hints.icon_x = icon_x; |
| 5337 | f->display.x->wm_hints.icon_y = icon_y; |
| 5338 | |
| 5339 | XSetWMHints (x_current_display, window, &f->display.x->wm_hints); |
| 5340 | } |
| 5341 | |
| 5342 | \f |
| 5343 | /* Initialization. */ |
| 5344 | |
| 5345 | #ifdef USE_X_TOOLKIT |
| 5346 | static XrmOptionDescRec emacs_options[] = { |
| 5347 | {"-geometry", ".geometry", XrmoptionSepArg, NULL}, |
| 5348 | {"-iconic", ".iconic", XrmoptionNoArg, (XtPointer) "yes"}, |
| 5349 | |
| 5350 | {"-internal-border-width", "*EmacsScreen.internalBorderWidth", |
| 5351 | XrmoptionSepArg, NULL}, |
| 5352 | {"-ib", "*EmacsScreen.internalBorderWidth", XrmoptionSepArg, NULL}, |
| 5353 | |
| 5354 | {"-T", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL}, |
| 5355 | {"-wn", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL}, |
| 5356 | {"-title", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL}, |
| 5357 | {"-iconname", "*EmacsShell.iconName", XrmoptionSepArg, (XtPointer) NULL}, |
| 5358 | {"-in", "*EmacsShell.iconName", XrmoptionSepArg, (XtPointer) NULL}, |
| 5359 | {"-mc", "*pointerColor", XrmoptionSepArg, (XtPointer) NULL}, |
| 5360 | {"-cr", "*cursorColor", XrmoptionSepArg, (XtPointer) NULL} |
| 5361 | }; |
| 5362 | #endif /* USE_X_TOOLKIT */ |
| 5363 | |
| 5364 | void |
| 5365 | x_term_init (display_name, xrm_option, resource_name) |
| 5366 | char *display_name; |
| 5367 | char *xrm_option; |
| 5368 | char *resource_name; |
| 5369 | { |
| 5370 | Lisp_Object frame; |
| 5371 | char *defaultvalue; |
| 5372 | int argc = 0; |
| 5373 | char** argv = 0; |
| 5374 | #ifndef F_SETOWN_BUG |
| 5375 | #ifdef F_SETOWN |
| 5376 | extern int old_fcntl_owner; |
| 5377 | #endif /* ! defined (F_SETOWN) */ |
| 5378 | #endif /* F_SETOWN_BUG */ |
| 5379 | |
| 5380 | x_noop_count = 0; |
| 5381 | |
| 5382 | x_focus_frame = x_highlight_frame = 0; |
| 5383 | |
| 5384 | #ifdef USE_X_TOOLKIT |
| 5385 | argv = (char **) XtMalloc (7 * sizeof (char *)); |
| 5386 | argv[0] = ""; |
| 5387 | argv[1] = "-display"; |
| 5388 | argv[2] = display_name; |
| 5389 | argv[3] = "-name"; |
| 5390 | /* Usually `emacs', but not always. */ |
| 5391 | argv[4] = resource_name; |
| 5392 | argc = 5; |
| 5393 | if (xrm_option) |
| 5394 | { |
| 5395 | argv[argc++] = "-xrm"; |
| 5396 | argv[argc++] = xrm_option; |
| 5397 | } |
| 5398 | Xt_app_shell = XtAppInitialize (&Xt_app_con, "Emacs", |
| 5399 | emacs_options, XtNumber (emacs_options), |
| 5400 | &argc, argv, |
| 5401 | NULL, NULL, 0); |
| 5402 | XtFree ((char *)argv); |
| 5403 | x_current_display = XtDisplay (Xt_app_shell); |
| 5404 | |
| 5405 | #else /* not USE_X_TOOLKIT */ |
| 5406 | x_current_display = XOpenDisplay (display_name); |
| 5407 | #endif /* not USE_X_TOOLKIT */ |
| 5408 | if (x_current_display == 0) |
| 5409 | fatal ("X server %s not responding.\n\ |
| 5410 | Check the DISPLAY environment variable or use \"-d\"\n", |
| 5411 | display_name); |
| 5412 | |
| 5413 | { |
| 5414 | #if 0 |
| 5415 | XSetAfterFunction (x_current_display, x_trace_wire); |
| 5416 | #endif /* ! 0 */ |
| 5417 | x_id_name = (char *) xmalloc (XSTRING (Vinvocation_name)->size |
| 5418 | + XSTRING (Vsystem_name)->size |
| 5419 | + 2); |
| 5420 | sprintf (x_id_name, "%s@%s", |
| 5421 | XSTRING (Vinvocation_name)->data, XSTRING (Vsystem_name)->data); |
| 5422 | } |
| 5423 | |
| 5424 | /* Figure out which modifier bits mean what. */ |
| 5425 | x_find_modifier_meanings (); |
| 5426 | |
| 5427 | /* Get the scroll bar cursor. */ |
| 5428 | x_vertical_scroll_bar_cursor |
| 5429 | = XCreateFontCursor (x_current_display, XC_sb_v_double_arrow); |
| 5430 | |
| 5431 | #if 0 |
| 5432 | /* Watch for PropertyNotify events on the root window; we use them |
| 5433 | to figure out when to invalidate our cache of the cut buffers. */ |
| 5434 | x_watch_cut_buffer_cache (); |
| 5435 | #endif |
| 5436 | |
| 5437 | if (ConnectionNumber (x_current_display) != 0) |
| 5438 | change_keyboard_wait_descriptor (ConnectionNumber (x_current_display)); |
| 5439 | change_input_fd (ConnectionNumber (x_current_display)); |
| 5440 | |
| 5441 | #ifndef F_SETOWN_BUG |
| 5442 | #ifdef F_SETOWN |
| 5443 | old_fcntl_owner = fcntl (ConnectionNumber (x_current_display), F_GETOWN, 0); |
| 5444 | #ifdef F_SETOWN_SOCK_NEG |
| 5445 | /* stdin is a socket here */ |
| 5446 | fcntl (ConnectionNumber (x_current_display), F_SETOWN, -getpid ()); |
| 5447 | #else /* ! defined (F_SETOWN_SOCK_NEG) */ |
| 5448 | fcntl (ConnectionNumber (x_current_display), F_SETOWN, getpid ()); |
| 5449 | #endif /* ! defined (F_SETOWN_SOCK_NEG) */ |
| 5450 | #endif /* ! defined (F_SETOWN) */ |
| 5451 | #endif /* F_SETOWN_BUG */ |
| 5452 | |
| 5453 | #ifdef SIGIO |
| 5454 | init_sigio (); |
| 5455 | #endif /* ! defined (SIGIO) */ |
| 5456 | |
| 5457 | expose_all_windows = 0; |
| 5458 | |
| 5459 | clear_frame_hook = XTclear_frame; |
| 5460 | clear_end_of_line_hook = XTclear_end_of_line; |
| 5461 | ins_del_lines_hook = XTins_del_lines; |
| 5462 | change_line_highlight_hook = XTchange_line_highlight; |
| 5463 | insert_glyphs_hook = XTinsert_glyphs; |
| 5464 | write_glyphs_hook = XTwrite_glyphs; |
| 5465 | delete_glyphs_hook = XTdelete_glyphs; |
| 5466 | ring_bell_hook = XTring_bell; |
| 5467 | reset_terminal_modes_hook = XTreset_terminal_modes; |
| 5468 | set_terminal_modes_hook = XTset_terminal_modes; |
| 5469 | update_begin_hook = XTupdate_begin; |
| 5470 | update_end_hook = XTupdate_end; |
| 5471 | set_terminal_window_hook = XTset_terminal_window; |
| 5472 | read_socket_hook = XTread_socket; |
| 5473 | frame_up_to_date_hook = XTframe_up_to_date; |
| 5474 | cursor_to_hook = XTcursor_to; |
| 5475 | reassert_line_highlight_hook = XTreassert_line_highlight; |
| 5476 | mouse_position_hook = XTmouse_position; |
| 5477 | frame_rehighlight_hook = XTframe_rehighlight; |
| 5478 | frame_raise_lower_hook = XTframe_raise_lower; |
| 5479 | set_vertical_scroll_bar_hook = XTset_vertical_scroll_bar; |
| 5480 | condemn_scroll_bars_hook = XTcondemn_scroll_bars; |
| 5481 | redeem_scroll_bar_hook = XTredeem_scroll_bar; |
| 5482 | judge_scroll_bars_hook = XTjudge_scroll_bars; |
| 5483 | |
| 5484 | scroll_region_ok = 1; /* we'll scroll partial frames */ |
| 5485 | char_ins_del_ok = 0; /* just as fast to write the line */ |
| 5486 | line_ins_del_ok = 1; /* we'll just blt 'em */ |
| 5487 | fast_clear_end_of_line = 1; /* X does this well */ |
| 5488 | memory_below_frame = 0; /* we don't remember what scrolls |
| 5489 | off the bottom */ |
| 5490 | baud_rate = 19200; |
| 5491 | |
| 5492 | /* Try to use interrupt input; if we can't, then start polling. */ |
| 5493 | Fset_input_mode (Qt, Qnil, Qt, Qnil); |
| 5494 | |
| 5495 | /* Note that there is no real way portable across R3/R4 to get the |
| 5496 | original error handler. */ |
| 5497 | XHandleError (x_error_quitter); |
| 5498 | XHandleIOError (x_io_error_quitter); |
| 5499 | |
| 5500 | /* Disable Window Change signals; they are handled by X events. */ |
| 5501 | #ifdef SIGWINCH |
| 5502 | signal (SIGWINCH, SIG_DFL); |
| 5503 | #endif /* ! defined (SIGWINCH) */ |
| 5504 | |
| 5505 | signal (SIGPIPE, x_connection_closed); |
| 5506 | } |
| 5507 | |
| 5508 | void |
| 5509 | syms_of_xterm () |
| 5510 | { |
| 5511 | staticpro (&last_mouse_scroll_bar); |
| 5512 | last_mouse_scroll_bar = Qnil; |
| 5513 | staticpro (&mouse_face_window); |
| 5514 | mouse_face_window = Qnil; |
| 5515 | } |
| 5516 | #endif /* ! defined (HAVE_X_WINDOWS) */ |