| 1 | /* X Communication module for terminals which understand the X protocol. |
| 2 | Copyright (C) 1989, 1993 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 | /* Serious problems: |
| 21 | |
| 22 | Kludge: dup2 is used to put the X-connection socket into desc # 0 |
| 23 | so that wait_reading_process_input will wait for it in place of |
| 24 | actual terminal input. |
| 25 | |
| 26 | */ |
| 27 | |
| 28 | #define NEW_SELECTIONS |
| 29 | |
| 30 | /* On 4.3 these lose if they come after xterm.h. */ |
| 31 | /* On HP-UX 8.0 signal.h loses if it comes after config.h. */ |
| 32 | /* Putting these at the beginning seems to be standard for other .c files. */ |
| 33 | #include <stdio.h> |
| 34 | #include <signal.h> |
| 35 | |
| 36 | #include "config.h" |
| 37 | |
| 38 | #ifdef HAVE_X_WINDOWS |
| 39 | |
| 40 | #include "lisp.h" |
| 41 | #include "blockinput.h" |
| 42 | |
| 43 | /* This may include sys/types.h, and that somehow loses |
| 44 | if this is not done before the other system files. */ |
| 45 | #include "xterm.h" |
| 46 | #include <X11/cursorfont.h> |
| 47 | |
| 48 | #ifndef USG |
| 49 | /* Load sys/types.h if not already loaded. |
| 50 | In some systems loading it twice is suicidal. */ |
| 51 | #ifndef makedev |
| 52 | #include <sys/types.h> |
| 53 | #endif /* makedev */ |
| 54 | #endif /* USG */ |
| 55 | |
| 56 | #ifdef BSD |
| 57 | #include <sys/ioctl.h> |
| 58 | #include <strings.h> |
| 59 | #else /* ! defined (BSD) */ |
| 60 | #ifndef VMS |
| 61 | #include <string.h> |
| 62 | #endif |
| 63 | #endif /* ! defined (BSD) */ |
| 64 | |
| 65 | #include "systty.h" |
| 66 | #include "systime.h" |
| 67 | |
| 68 | #include <fcntl.h> |
| 69 | #include <ctype.h> |
| 70 | #include <errno.h> |
| 71 | #include <setjmp.h> |
| 72 | #include <sys/stat.h> |
| 73 | #include <sys/param.h> |
| 74 | |
| 75 | #include "dispextern.h" |
| 76 | #include "termhooks.h" |
| 77 | #include "termopts.h" |
| 78 | #include "termchar.h" |
| 79 | #if 0 |
| 80 | #include "sink.h" |
| 81 | #include "sinkmask.h" |
| 82 | #endif /* ! 0 */ |
| 83 | #include "gnu.h" |
| 84 | #include "frame.h" |
| 85 | #include "disptab.h" |
| 86 | #include "buffer.h" |
| 87 | #include "window.h" |
| 88 | |
| 89 | #ifdef HAVE_X11 |
| 90 | #define XMapWindow XMapRaised /* Raise them when mapping. */ |
| 91 | #else /* ! defined (HAVE_X11) */ |
| 92 | #include <X/Xkeyboard.h> |
| 93 | /*#include <X/Xproto.h> */ |
| 94 | #endif /* ! defined (HAVE_X11) */ |
| 95 | |
| 96 | /* For sending Meta-characters. Do we need this? */ |
| 97 | #define METABIT 0200 |
| 98 | |
| 99 | #define min(a,b) ((a)<(b) ? (a) : (b)) |
| 100 | #define max(a,b) ((a)>(b) ? (a) : (b)) |
| 101 | |
| 102 | /* Nonzero means we must reprint all windows |
| 103 | because 1) we received an ExposeWindow event |
| 104 | or 2) we received too many ExposeRegion events to record. |
| 105 | |
| 106 | This is never needed under X11. */ |
| 107 | static int expose_all_windows; |
| 108 | |
| 109 | /* Nonzero means we must reprint all icon windows. */ |
| 110 | |
| 111 | static int expose_all_icons; |
| 112 | |
| 113 | #ifndef HAVE_X11 |
| 114 | /* ExposeRegion events, when received, are copied into this queue |
| 115 | for later processing. */ |
| 116 | |
| 117 | static struct event_queue x_expose_queue; |
| 118 | |
| 119 | /* ButtonPressed and ButtonReleased events, when received, |
| 120 | are copied into this queue for later processing. */ |
| 121 | |
| 122 | struct event_queue x_mouse_queue; |
| 123 | #endif /* HAVE_X11 */ |
| 124 | |
| 125 | #if defined (SIGIO) && defined (FIONREAD) |
| 126 | int BLOCK_INPUT_mask; |
| 127 | #endif /* ! defined (SIGIO) && defined (FIONREAD) */ |
| 128 | |
| 129 | /* The id of a bitmap used for icon windows. |
| 130 | One such map is shared by all Emacs icon windows. |
| 131 | This is zero if we have not yet had a need to create the bitmap. */ |
| 132 | |
| 133 | static Bitmap icon_bitmap; |
| 134 | |
| 135 | /* Font used for text icons. */ |
| 136 | |
| 137 | static FONT_TYPE *icon_font_info; |
| 138 | |
| 139 | /* Stuff for dealing with the main icon title. */ |
| 140 | |
| 141 | extern Lisp_Object Vcommand_line_args; |
| 142 | char *hostname, *x_id_name; |
| 143 | |
| 144 | /* This is the X connection that we are using. */ |
| 145 | |
| 146 | Display *x_current_display; |
| 147 | |
| 148 | /* The cursor to use for vertical scroll bars on x_current_display. */ |
| 149 | static Cursor x_vertical_scroll_bar_cursor; |
| 150 | |
| 151 | /* Frame being updated by update_frame. This is declared in term.c. |
| 152 | This is set by update_begin and looked at by all the |
| 153 | XT functions. It is zero while not inside an update. |
| 154 | In that case, the XT functions assume that `selected_frame' |
| 155 | is the frame to apply to. */ |
| 156 | extern struct frame *updating_frame; |
| 157 | |
| 158 | /* The frame (if any) which has the X window that has keyboard focus. |
| 159 | Zero if none. This is examined by Ffocus_frame in frame.c. Note |
| 160 | that a mere EnterNotify event can set this; if you need to know the |
| 161 | last frame specified in a FocusIn or FocusOut event, use |
| 162 | x_focus_event_frame. */ |
| 163 | struct frame *x_focus_frame; |
| 164 | |
| 165 | /* The last frame mentioned in a FocusIn or FocusOut event. This is |
| 166 | separate from x_focus_frame, because whether or not LeaveNotify |
| 167 | events cause us to lose focus depends on whether or not we have |
| 168 | received a FocusIn event for it. */ |
| 169 | struct frame *x_focus_event_frame; |
| 170 | |
| 171 | /* The frame which currently has the visual highlight, and should get |
| 172 | keyboard input (other sorts of input have the frame encoded in the |
| 173 | event). It points to the X focus frame's selected window's |
| 174 | frame. It differs from x_focus_frame when we're using a global |
| 175 | minibuffer. */ |
| 176 | static struct frame *x_highlight_frame; |
| 177 | |
| 178 | /* From .Xdefaults, the value of "emacs.WarpMouse". If non-zero, |
| 179 | mouse is moved to inside of frame when frame is de-iconified. */ |
| 180 | |
| 181 | static int warp_mouse_on_deiconify; |
| 182 | |
| 183 | /* During an update, maximum vpos for ins/del line operations to affect. */ |
| 184 | |
| 185 | static int flexlines; |
| 186 | |
| 187 | /* During an update, nonzero if chars output now should be highlighted. */ |
| 188 | |
| 189 | static int highlight; |
| 190 | |
| 191 | /* Nominal cursor position -- where to draw output. |
| 192 | During an update, these are different from the cursor-box position. */ |
| 193 | |
| 194 | static int curs_x; |
| 195 | static int curs_y; |
| 196 | |
| 197 | #ifdef HAVE_X11 |
| 198 | /* `t' if a mouse button is depressed. */ |
| 199 | |
| 200 | extern Lisp_Object Vmouse_depressed; |
| 201 | |
| 202 | /* Tells if a window manager is present or not. */ |
| 203 | |
| 204 | extern Lisp_Object Vx_no_window_manager; |
| 205 | |
| 206 | /* Timestamp that we requested selection data was made. */ |
| 207 | extern Time requestor_time; |
| 208 | |
| 209 | /* ID of the window requesting selection data. */ |
| 210 | extern Window requestor_window; |
| 211 | |
| 212 | /* Nonzero enables some debugging for the X interface code. */ |
| 213 | extern int _Xdebug; |
| 214 | |
| 215 | #else /* ! defined (HAVE_X11) */ |
| 216 | |
| 217 | /* Bit patterns for the mouse cursor. */ |
| 218 | |
| 219 | short MouseCursor[] = { |
| 220 | 0x0000, 0x0008, 0x0018, 0x0038, |
| 221 | 0x0078, 0x00f8, 0x01f8, 0x03f8, |
| 222 | 0x07f8, 0x00f8, 0x00d8, 0x0188, |
| 223 | 0x0180, 0x0300, 0x0300, 0x0000}; |
| 224 | |
| 225 | short MouseMask[] = { |
| 226 | 0x000c, 0x001c, 0x003c, 0x007c, |
| 227 | 0x00fc, 0x01fc, 0x03fc, 0x07fc, |
| 228 | 0x0ffc, 0x0ffc, 0x01fc, 0x03dc, |
| 229 | 0x03cc, 0x0780, 0x0780, 0x0300}; |
| 230 | |
| 231 | static short grey_bits[] = { |
| 232 | 0x0005, 0x000a, 0x0005, 0x000a}; |
| 233 | |
| 234 | static Pixmap GreyPixmap = 0; |
| 235 | #endif /* ! defined (HAVE_X11) */ |
| 236 | |
| 237 | /* From time to time we get info on an Emacs window, here. */ |
| 238 | |
| 239 | static WINDOWINFO_TYPE windowinfo; |
| 240 | |
| 241 | extern int errno; |
| 242 | |
| 243 | /* A mask of extra modifier bits to put into every keyboard char. */ |
| 244 | extern int extra_keyboard_modifiers; |
| 245 | |
| 246 | extern Display *XOpenDisplay (); |
| 247 | extern Window XCreateWindow (); |
| 248 | |
| 249 | extern Cursor XCreateCursor (); |
| 250 | extern FONT_TYPE *XOpenFont (); |
| 251 | |
| 252 | static void flashback (); |
| 253 | |
| 254 | #ifndef HAVE_X11 |
| 255 | static void dumpqueue (); |
| 256 | #endif /* HAVE_X11 */ |
| 257 | |
| 258 | void dumpborder (); |
| 259 | static int XTcursor_to (); |
| 260 | static int XTclear_end_of_line (); |
| 261 | |
| 262 | \f |
| 263 | /* Starting and ending updates. |
| 264 | |
| 265 | These hooks are called by update_frame at the beginning and end |
| 266 | of a frame update. We record in `updating_frame' the identity |
| 267 | of the frame being updated, so that the XT... functions do not |
| 268 | need to take a frame as argument. Most of the XT... functions |
| 269 | should never be called except during an update, the only exceptions |
| 270 | being XTcursor_to, XTwrite_char and XTreassert_line_highlight. */ |
| 271 | |
| 272 | extern int mouse_track_top, mouse_track_left, mouse_track_width; |
| 273 | |
| 274 | static |
| 275 | XTupdate_begin (f) |
| 276 | struct frame *f; |
| 277 | { |
| 278 | int mask; |
| 279 | |
| 280 | if (f == 0) |
| 281 | abort (); |
| 282 | |
| 283 | flexlines = f->height; |
| 284 | highlight = 0; |
| 285 | |
| 286 | BLOCK_INPUT; |
| 287 | #ifndef HAVE_X11 |
| 288 | dumpqueue (); |
| 289 | #endif /* HAVE_X11 */ |
| 290 | UNBLOCK_INPUT; |
| 291 | } |
| 292 | |
| 293 | #ifndef HAVE_X11 |
| 294 | static void x_do_pending_expose (); |
| 295 | #endif |
| 296 | |
| 297 | static |
| 298 | XTupdate_end (f) |
| 299 | struct frame *f; |
| 300 | { |
| 301 | int mask; |
| 302 | |
| 303 | if (updating_frame == 0 |
| 304 | || updating_frame != f) |
| 305 | abort (); |
| 306 | |
| 307 | BLOCK_INPUT; |
| 308 | #ifndef HAVE_X11 |
| 309 | dumpqueue (); |
| 310 | x_do_pending_expose (); |
| 311 | #endif /* HAVE_X11 */ |
| 312 | |
| 313 | x_display_cursor (f, 1); |
| 314 | |
| 315 | XFlushQueue (); |
| 316 | UNBLOCK_INPUT; |
| 317 | } |
| 318 | \f |
| 319 | /* External interface to control of standout mode. |
| 320 | Call this when about to modify line at position VPOS |
| 321 | and not change whether it is highlighted. */ |
| 322 | |
| 323 | XTreassert_line_highlight (new, vpos) |
| 324 | int new, vpos; |
| 325 | { |
| 326 | highlight = new; |
| 327 | } |
| 328 | |
| 329 | /* Call this when about to modify line at position VPOS |
| 330 | and change whether it is highlighted. */ |
| 331 | |
| 332 | static |
| 333 | XTchange_line_highlight (new_highlight, vpos, first_unused_hpos) |
| 334 | int new_highlight, vpos, first_unused_hpos; |
| 335 | { |
| 336 | highlight = new_highlight; |
| 337 | XTcursor_to (vpos, 0); |
| 338 | XTclear_end_of_line (updating_frame->width); |
| 339 | } |
| 340 | |
| 341 | /* This is used when starting Emacs and when restarting after suspend. |
| 342 | When starting Emacs, no X window is mapped. And nothing must be done |
| 343 | to Emacs's own window if it is suspended (though that rarely happens). */ |
| 344 | |
| 345 | static |
| 346 | XTset_terminal_modes () |
| 347 | { |
| 348 | } |
| 349 | |
| 350 | /* This is called when exiting or suspending Emacs. |
| 351 | Exiting will make the X-windows go away, and suspending |
| 352 | requires no action. */ |
| 353 | |
| 354 | static |
| 355 | XTreset_terminal_modes () |
| 356 | { |
| 357 | /* XTclear_frame (); */ |
| 358 | } |
| 359 | \f |
| 360 | /* Set the nominal cursor position of the frame. |
| 361 | This is where display update commands will take effect. |
| 362 | This does not affect the place where the cursor-box is displayed. */ |
| 363 | |
| 364 | static int |
| 365 | XTcursor_to (row, col) |
| 366 | register int row, col; |
| 367 | { |
| 368 | int mask; |
| 369 | int orow = row; |
| 370 | |
| 371 | curs_x = col; |
| 372 | curs_y = row; |
| 373 | |
| 374 | if (updating_frame == 0) |
| 375 | { |
| 376 | BLOCK_INPUT; |
| 377 | x_display_cursor (selected_frame, 1); |
| 378 | XFlushQueue (); |
| 379 | UNBLOCK_INPUT; |
| 380 | } |
| 381 | } |
| 382 | \f |
| 383 | /* Display a sequence of N glyphs found at GP. |
| 384 | WINDOW is the x-window to output to. LEFT and TOP are starting coords. |
| 385 | HL is 1 if this text is highlighted, 2 if the cursor is on it. |
| 386 | |
| 387 | FONT is the default font to use (for glyphs whose font-code is 0). |
| 388 | |
| 389 | Since the display generation code is responsible for calling |
| 390 | compute_char_face and compute_glyph_face on everything it puts in |
| 391 | the display structure, we can assume that the face code on each |
| 392 | glyph is a valid index into FRAME_FACES (f), and the one to which |
| 393 | we can actually apply intern_face. */ |
| 394 | |
| 395 | #if 1 |
| 396 | /* This is the multi-face code. */ |
| 397 | |
| 398 | static void |
| 399 | dumpglyphs (f, left, top, gp, n, hl) |
| 400 | struct frame *f; |
| 401 | int left, top; |
| 402 | register GLYPH *gp; /* Points to first GLYPH. */ |
| 403 | register int n; /* Number of glyphs to display. */ |
| 404 | int hl; |
| 405 | { |
| 406 | /* Holds characters to be displayed. */ |
| 407 | char *buf = (char *) alloca (f->width * sizeof (*buf)); |
| 408 | register char *cp; /* Steps through buf[]. */ |
| 409 | register int tlen = GLYPH_TABLE_LENGTH; |
| 410 | register Lisp_Object *tbase = GLYPH_TABLE_BASE; |
| 411 | Window window = FRAME_X_WINDOW (f); |
| 412 | |
| 413 | while (n > 0) |
| 414 | { |
| 415 | /* Get the face-code of the next GLYPH. */ |
| 416 | int cf, len; |
| 417 | int g = *gp; |
| 418 | |
| 419 | GLYPH_FOLLOW_ALIASES (tbase, tlen, g); |
| 420 | cf = GLYPH_FACE (g); |
| 421 | |
| 422 | /* Find the run of consecutive glyphs with the same face-code. |
| 423 | Extract their character codes into BUF. */ |
| 424 | cp = buf; |
| 425 | while (n > 0) |
| 426 | { |
| 427 | g = *gp; |
| 428 | GLYPH_FOLLOW_ALIASES (tbase, tlen, g); |
| 429 | if (GLYPH_FACE (g) != cf) |
| 430 | break; |
| 431 | |
| 432 | *cp++ = GLYPH_CHAR (g); |
| 433 | --n; |
| 434 | ++gp; |
| 435 | } |
| 436 | |
| 437 | /* LEN gets the length of the run. */ |
| 438 | len = cp - buf; |
| 439 | |
| 440 | /* Now output this run of chars, with the font and pixel values |
| 441 | determined by the face code CF. */ |
| 442 | { |
| 443 | struct face *face = FRAME_DEFAULT_FACE (f); |
| 444 | FONT_TYPE *font = FACE_FONT (face); |
| 445 | GC gc = FACE_GC (face); |
| 446 | int defaulted = 1; |
| 447 | int gc_temporary = 0; |
| 448 | |
| 449 | /* First look at the face of the text itself. */ |
| 450 | if (cf != 0) |
| 451 | { |
| 452 | /* The face codes on the glyphs must be valid indices into the |
| 453 | frame's face table. */ |
| 454 | if (cf < 0 || cf >= FRAME_N_FACES (f)) |
| 455 | abort (); |
| 456 | |
| 457 | if (cf == 1) |
| 458 | face = FRAME_MODE_LINE_FACE (f); |
| 459 | else |
| 460 | face = intern_face (f, FRAME_FACES (f) [cf]); |
| 461 | font = FACE_FONT (face); |
| 462 | gc = FACE_GC (face); |
| 463 | defaulted = 0; |
| 464 | } |
| 465 | |
| 466 | /* Then comes the distinction between modeline and normal text. */ |
| 467 | else if (hl == 0) |
| 468 | ; |
| 469 | else if (hl == 1) |
| 470 | { |
| 471 | face = FRAME_MODE_LINE_FACE (f); |
| 472 | font = FACE_FONT (face); |
| 473 | gc = FACE_GC (face); |
| 474 | defaulted = 0; |
| 475 | } |
| 476 | |
| 477 | #define FACE_DEFAULT (~0) |
| 478 | |
| 479 | /* Now override that if the cursor's on this character. */ |
| 480 | if (hl == 2) |
| 481 | { |
| 482 | if (defaulted |
| 483 | || !face->font |
| 484 | || (int) face->font == FACE_DEFAULT) |
| 485 | { |
| 486 | gc = f->display.x->cursor_gc; |
| 487 | } |
| 488 | /* Cursor on non-default face: must merge. */ |
| 489 | else |
| 490 | { |
| 491 | XGCValues xgcv; |
| 492 | unsigned long mask; |
| 493 | |
| 494 | xgcv.background = f->display.x->cursor_pixel; |
| 495 | xgcv.foreground = f->display.x->cursor_foreground_pixel; |
| 496 | xgcv.font = face->font->fid; |
| 497 | xgcv.graphics_exposures = 0; |
| 498 | mask = GCForeground | GCBackground | GCFont | GCGraphicsExposures; |
| 499 | gc = XCreateGC (x_current_display, FRAME_X_WINDOW (f), |
| 500 | mask, &xgcv); |
| 501 | #if 0 |
| 502 | if (face->stipple && face->stipple != FACE_DEFAULT) |
| 503 | XSetStipple (x_current_display, gc, face->stipple); |
| 504 | #endif |
| 505 | gc_temporary = 1; |
| 506 | } |
| 507 | } |
| 508 | |
| 509 | if ((int) font == FACE_DEFAULT) |
| 510 | font = f->display.x->font; |
| 511 | |
| 512 | XDrawImageString (x_current_display, window, gc, |
| 513 | left, top + FONT_BASE (font), buf, len); |
| 514 | |
| 515 | if (gc_temporary) |
| 516 | XFreeGC (x_current_display, gc); |
| 517 | |
| 518 | /* We should probably check for XA_UNDERLINE_POSITION and |
| 519 | XA_UNDERLINE_THICKNESS properties on the font, but let's |
| 520 | just get the thing working, and come back to that. */ |
| 521 | { |
| 522 | int underline_position = 1; |
| 523 | |
| 524 | if (font->descent <= underline_position) |
| 525 | underline_position = font->descent - 1; |
| 526 | |
| 527 | if (face->underline) |
| 528 | XFillRectangle (x_current_display, FRAME_X_WINDOW (f), |
| 529 | FACE_GC (face), |
| 530 | left, (top |
| 531 | + FONT_BASE (font) |
| 532 | + underline_position), |
| 533 | len * FONT_WIDTH (font), 1); |
| 534 | } |
| 535 | |
| 536 | left += len * FONT_WIDTH (font); |
| 537 | } |
| 538 | } |
| 539 | } |
| 540 | #endif /* 1 */ |
| 541 | |
| 542 | #if 0 |
| 543 | /* This is the old single-face code. */ |
| 544 | |
| 545 | static void |
| 546 | dumpglyphs (f, left, top, gp, n, hl, font) |
| 547 | struct frame *f; |
| 548 | int left, top; |
| 549 | register GLYPH *gp; /* Points to first GLYPH. */ |
| 550 | register int n; /* Number of glyphs to display. */ |
| 551 | int hl; |
| 552 | FONT_TYPE *font; |
| 553 | { |
| 554 | register int len; |
| 555 | Window window = FRAME_X_WINDOW (f); |
| 556 | GC drawing_gc = (hl == 2 ? f->display.x->cursor_gc |
| 557 | : (hl ? f->display.x->reverse_gc |
| 558 | : f->display.x->normal_gc)); |
| 559 | |
| 560 | if (sizeof (GLYPH) == sizeof (XChar2b)) |
| 561 | XDrawImageString16 (x_current_display, window, drawing_gc, |
| 562 | left, top + FONT_BASE (font), (XChar2b *) gp, n); |
| 563 | else if (sizeof (GLYPH) == sizeof (unsigned char)) |
| 564 | XDrawImageString (x_current_display, window, drawing_gc, |
| 565 | left, top + FONT_BASE (font), (char *) gp, n); |
| 566 | else |
| 567 | /* What size of glyph ARE you using? And does X have a function to |
| 568 | draw them? */ |
| 569 | abort (); |
| 570 | } |
| 571 | #endif |
| 572 | \f |
| 573 | /* Output some text at the nominal frame cursor position. |
| 574 | Advance the cursor over the text. |
| 575 | Output LEN glyphs at START. |
| 576 | |
| 577 | `highlight', set up by XTreassert_line_highlight or XTchange_line_highlight, |
| 578 | controls the pixel values used for foreground and background. */ |
| 579 | |
| 580 | static |
| 581 | XTwrite_glyphs (start, len) |
| 582 | register GLYPH *start; |
| 583 | int len; |
| 584 | { |
| 585 | register int temp_length; |
| 586 | int mask; |
| 587 | struct frame *f; |
| 588 | |
| 589 | BLOCK_INPUT; |
| 590 | |
| 591 | f = updating_frame; |
| 592 | if (f == 0) |
| 593 | { |
| 594 | f = selected_frame; |
| 595 | /* If not within an update, |
| 596 | output at the frame's visible cursor. */ |
| 597 | curs_x = f->cursor_x; |
| 598 | curs_y = f->cursor_y; |
| 599 | } |
| 600 | |
| 601 | dumpglyphs (f, |
| 602 | CHAR_TO_PIXEL_COL (f, curs_x), |
| 603 | CHAR_TO_PIXEL_ROW (f, curs_y), |
| 604 | start, len, highlight); |
| 605 | |
| 606 | /* If we drew on top of the cursor, note that it is turned off. */ |
| 607 | if (curs_y == f->phys_cursor_y |
| 608 | && curs_x <= f->phys_cursor_x |
| 609 | && curs_x + len > f->phys_cursor_x) |
| 610 | f->phys_cursor_x = -1; |
| 611 | |
| 612 | if (updating_frame == 0) |
| 613 | { |
| 614 | f->cursor_x += len; |
| 615 | x_display_cursor (f, 1); |
| 616 | f->cursor_x -= len; |
| 617 | } |
| 618 | else |
| 619 | curs_x += len; |
| 620 | |
| 621 | UNBLOCK_INPUT; |
| 622 | } |
| 623 | \f |
| 624 | /* Clear to the end of the line. |
| 625 | Erase the current text line from the nominal cursor position (inclusive) |
| 626 | to column FIRST_UNUSED (exclusive). The idea is that everything |
| 627 | from FIRST_UNUSED onward is already erased. */ |
| 628 | |
| 629 | static int |
| 630 | XTclear_end_of_line (first_unused) |
| 631 | register int first_unused; |
| 632 | { |
| 633 | struct frame *f = updating_frame; |
| 634 | int mask; |
| 635 | |
| 636 | if (f == 0) |
| 637 | abort (); |
| 638 | |
| 639 | if (curs_y < 0 || curs_y >= f->height) |
| 640 | return; |
| 641 | if (first_unused <= 0) |
| 642 | return; |
| 643 | |
| 644 | if (first_unused >= f->width) |
| 645 | first_unused = f->width; |
| 646 | |
| 647 | BLOCK_INPUT; |
| 648 | |
| 649 | /* Notice if the cursor will be cleared by this operation. */ |
| 650 | if (curs_y == f->phys_cursor_y |
| 651 | && curs_x <= f->phys_cursor_x |
| 652 | && f->phys_cursor_x < first_unused) |
| 653 | f->phys_cursor_x = -1; |
| 654 | |
| 655 | #ifdef HAVE_X11 |
| 656 | XClearArea (x_current_display, FRAME_X_WINDOW (f), |
| 657 | CHAR_TO_PIXEL_COL (f, curs_x), |
| 658 | CHAR_TO_PIXEL_ROW (f, curs_y), |
| 659 | FONT_WIDTH (f->display.x->font) * (first_unused - curs_x), |
| 660 | FONT_HEIGHT (f->display.x->font), False); |
| 661 | |
| 662 | #else /* ! defined (HAVE_X11) */ |
| 663 | XPixSet (FRAME_X_WINDOW (f), |
| 664 | CHAR_TO_PIXEL_COL (f, curs_x), |
| 665 | CHAR_TO_PIXEL_ROW (f, curs_y), |
| 666 | FONT_WIDTH (f->display.x->font) * (first_unused - curs_x), |
| 667 | FONT_HEIGHT (f->display.x->font), |
| 668 | f->display.x->background_pixel); |
| 669 | #endif /* ! defined (HAVE_X11) */ |
| 670 | |
| 671 | UNBLOCK_INPUT; |
| 672 | } |
| 673 | |
| 674 | static |
| 675 | XTclear_frame () |
| 676 | { |
| 677 | int mask; |
| 678 | struct frame *f = updating_frame; |
| 679 | |
| 680 | if (f == 0) |
| 681 | f = selected_frame; |
| 682 | |
| 683 | f->phys_cursor_x = -1; /* Cursor not visible. */ |
| 684 | curs_x = 0; /* Nominal cursor position is top left. */ |
| 685 | curs_y = 0; |
| 686 | |
| 687 | BLOCK_INPUT; |
| 688 | |
| 689 | XClear (FRAME_X_WINDOW (f)); |
| 690 | |
| 691 | /* We have to clear the scroll bars, too. If we have changed |
| 692 | colors or something like that, then they should be notified. */ |
| 693 | x_scroll_bar_clear (f); |
| 694 | |
| 695 | #ifndef HAVE_X11 |
| 696 | dumpborder (f, 0); |
| 697 | #endif /* HAVE_X11 */ |
| 698 | |
| 699 | XFlushQueue (); |
| 700 | UNBLOCK_INPUT; |
| 701 | } |
| 702 | \f |
| 703 | /* Invert the middle quarter of the frame for .15 sec. */ |
| 704 | |
| 705 | /* We use the select system call to do the waiting, so we have to make sure |
| 706 | it's available. If it isn't, we just won't do visual bells. */ |
| 707 | #if defined (HAVE_TIMEVAL) && defined (HAVE_SELECT) |
| 708 | |
| 709 | /* Subtract the `struct timeval' values X and Y, |
| 710 | storing the result in RESULT. |
| 711 | Return 1 if the difference is negative, otherwise 0. */ |
| 712 | |
| 713 | static int |
| 714 | timeval_subtract (result, x, y) |
| 715 | struct timeval *result, x, y; |
| 716 | { |
| 717 | /* Perform the carry for the later subtraction by updating y. |
| 718 | This is safer because on some systems |
| 719 | the tv_sec member is unsigned. */ |
| 720 | if (x.tv_usec < y.tv_usec) |
| 721 | { |
| 722 | int nsec = (y.tv_usec - x.tv_usec) / 1000000 + 1; |
| 723 | y.tv_usec -= 1000000 * nsec; |
| 724 | y.tv_sec += nsec; |
| 725 | } |
| 726 | if (x.tv_usec - y.tv_usec > 1000000) |
| 727 | { |
| 728 | int nsec = (y.tv_usec - x.tv_usec) / 1000000; |
| 729 | y.tv_usec += 1000000 * nsec; |
| 730 | y.tv_sec -= nsec; |
| 731 | } |
| 732 | |
| 733 | /* Compute the time remaining to wait. tv_usec is certainly positive. */ |
| 734 | result->tv_sec = x.tv_sec - y.tv_sec; |
| 735 | result->tv_usec = x.tv_usec - y.tv_usec; |
| 736 | |
| 737 | /* Return indication of whether the result should be considered negative. */ |
| 738 | return x.tv_sec < y.tv_sec; |
| 739 | } |
| 740 | |
| 741 | XTflash (f) |
| 742 | struct frame *f; |
| 743 | { |
| 744 | BLOCK_INPUT; |
| 745 | |
| 746 | { |
| 747 | GC gc; |
| 748 | |
| 749 | /* Create a GC that will use the GXxor function to flip foreground pixels |
| 750 | into background pixels. */ |
| 751 | { |
| 752 | XGCValues values; |
| 753 | |
| 754 | values.function = GXxor; |
| 755 | values.foreground = (f->display.x->foreground_pixel |
| 756 | ^ f->display.x->background_pixel); |
| 757 | |
| 758 | gc = XCreateGC (x_current_display, FRAME_X_WINDOW (f), |
| 759 | GCFunction | GCForeground, &values); |
| 760 | } |
| 761 | |
| 762 | { |
| 763 | int width = PIXEL_WIDTH (f); |
| 764 | int height = PIXEL_HEIGHT (f); |
| 765 | |
| 766 | XFillRectangle (x_current_display, FRAME_X_WINDOW (f), gc, |
| 767 | width/4, height/4, width/2, height/2); |
| 768 | XFlush (x_current_display); |
| 769 | |
| 770 | { |
| 771 | struct timeval wakeup, now; |
| 772 | |
| 773 | gettimeofday (&wakeup, (struct timezone *) 0); |
| 774 | |
| 775 | /* Compute time to wait until, propagating carry from usecs. */ |
| 776 | wakeup.tv_usec += 150000; |
| 777 | wakeup.tv_sec += (wakeup.tv_usec / 1000000); |
| 778 | wakeup.tv_usec %= 1000000; |
| 779 | |
| 780 | /* Keep waiting until past the time wakeup. */ |
| 781 | while (1) |
| 782 | { |
| 783 | struct timeval timeout; |
| 784 | |
| 785 | gettimeofday (&timeout, (struct timezone *)0); |
| 786 | |
| 787 | /* In effect, timeout = wakeup - timeout. |
| 788 | Break if result would be negative. */ |
| 789 | if (timeval_subtract (&timeout, wakeup, timeout)) |
| 790 | break; |
| 791 | |
| 792 | /* Try to wait that long--but we might wake up sooner. */ |
| 793 | select (0, 0, 0, 0, &timeout); |
| 794 | } |
| 795 | } |
| 796 | |
| 797 | XFillRectangle (x_current_display, FRAME_X_WINDOW (f), gc, |
| 798 | width/4, height/4, width/2, height/2); |
| 799 | XFreeGC (x_current_display, gc); |
| 800 | XFlush (x_current_display); |
| 801 | } |
| 802 | } |
| 803 | |
| 804 | UNBLOCK_INPUT; |
| 805 | } |
| 806 | |
| 807 | #endif |
| 808 | |
| 809 | |
| 810 | /* Make audible bell. */ |
| 811 | |
| 812 | #ifdef HAVE_X11 |
| 813 | #define XRINGBELL XBell(x_current_display, 0) |
| 814 | #else /* ! defined (HAVE_X11) */ |
| 815 | #define XRINGBELL XFeep(0); |
| 816 | #endif /* ! defined (HAVE_X11) */ |
| 817 | |
| 818 | XTring_bell () |
| 819 | { |
| 820 | if (x_current_display == 0) |
| 821 | return; |
| 822 | |
| 823 | #if defined (HAVE_TIMEVAL) && defined (HAVE_SELECT) |
| 824 | if (visible_bell) |
| 825 | XTflash (selected_frame); |
| 826 | else |
| 827 | #endif |
| 828 | { |
| 829 | BLOCK_INPUT; |
| 830 | XRINGBELL; |
| 831 | XFlushQueue (); |
| 832 | UNBLOCK_INPUT; |
| 833 | } |
| 834 | } |
| 835 | \f |
| 836 | /* Insert and delete character. |
| 837 | These are not supposed to be used because we are supposed to turn |
| 838 | off the feature of using them. */ |
| 839 | |
| 840 | static |
| 841 | XTinsert_glyphs (start, len) |
| 842 | register char *start; |
| 843 | register int len; |
| 844 | { |
| 845 | abort (); |
| 846 | } |
| 847 | |
| 848 | static |
| 849 | XTdelete_glyphs (n) |
| 850 | register int n; |
| 851 | { |
| 852 | abort (); |
| 853 | } |
| 854 | \f |
| 855 | /* Specify how many text lines, from the top of the window, |
| 856 | should be affected by insert-lines and delete-lines operations. |
| 857 | This, and those operations, are used only within an update |
| 858 | that is bounded by calls to XTupdate_begin and XTupdate_end. */ |
| 859 | |
| 860 | static |
| 861 | XTset_terminal_window (n) |
| 862 | register int n; |
| 863 | { |
| 864 | if (updating_frame == 0) |
| 865 | abort (); |
| 866 | |
| 867 | if ((n <= 0) || (n > updating_frame->height)) |
| 868 | flexlines = updating_frame->height; |
| 869 | else |
| 870 | flexlines = n; |
| 871 | } |
| 872 | \f |
| 873 | /* Perform an insert-lines operation. |
| 874 | Insert N lines at a vertical position curs_y. */ |
| 875 | |
| 876 | static void |
| 877 | stufflines (n) |
| 878 | register int n; |
| 879 | { |
| 880 | register int topregion, bottomregion; |
| 881 | register int length, newtop, mask; |
| 882 | register struct frame *f = updating_frame; |
| 883 | int intborder = f->display.x->internal_border_width; |
| 884 | |
| 885 | if (curs_y >= flexlines) |
| 886 | return; |
| 887 | |
| 888 | topregion = curs_y; |
| 889 | bottomregion = flexlines - (n + 1); |
| 890 | newtop = topregion + n; |
| 891 | length = (bottomregion - topregion) + 1; |
| 892 | |
| 893 | #ifndef HAVE_X11 |
| 894 | dumpqueue (); |
| 895 | #endif /* HAVE_X11 */ |
| 896 | |
| 897 | if ((length > 0) && (newtop <= flexlines)) |
| 898 | { |
| 899 | #ifdef HAVE_X11 |
| 900 | XCopyArea (x_current_display, FRAME_X_WINDOW (f), |
| 901 | FRAME_X_WINDOW (f), f->display.x->normal_gc, |
| 902 | intborder, CHAR_TO_PIXEL_ROW (f, topregion), |
| 903 | f->width * FONT_WIDTH (f->display.x->font), |
| 904 | length * FONT_HEIGHT (f->display.x->font), intborder, |
| 905 | CHAR_TO_PIXEL_ROW (f, newtop)); |
| 906 | #else /* ! defined (HAVE_X11) */ |
| 907 | XMoveArea (FRAME_X_WINDOW (f), |
| 908 | intborder, CHAR_TO_PIXEL_ROW (f, topregion), |
| 909 | intborder, CHAR_TO_PIXEL_ROW (f, newtop), |
| 910 | f->width * FONT_WIDTH (f->display.x->font), |
| 911 | length * FONT_HEIGHT (f->display.x->font)); |
| 912 | /* Now we must process any ExposeRegion events that occur |
| 913 | if the area being copied from is obscured. |
| 914 | We can't let it wait because further i/d operations |
| 915 | may want to copy this area to another area. */ |
| 916 | x_read_exposes (); |
| 917 | #endif /* ! defined (HAVE_X11) */ |
| 918 | } |
| 919 | |
| 920 | newtop = min (newtop, (flexlines - 1)); |
| 921 | length = newtop - topregion; |
| 922 | if (length > 0) |
| 923 | { |
| 924 | #ifdef HAVE_X11 |
| 925 | XClearArea (x_current_display, FRAME_X_WINDOW (f), intborder, |
| 926 | CHAR_TO_PIXEL_ROW (f, topregion), |
| 927 | f->width * FONT_WIDTH (f->display.x->font), |
| 928 | n * FONT_HEIGHT (f->display.x->font), False); |
| 929 | #else /* ! defined (HAVE_X11) */ |
| 930 | XPixSet (FRAME_X_WINDOW (f), |
| 931 | intborder, |
| 932 | CHAR_TO_PIXEL_ROW (f, topregion), |
| 933 | f->width * FONT_WIDTH (f->display.x->font), |
| 934 | n * FONT_HEIGHT (f->display.x->font), |
| 935 | f->display.x->background_pixel); |
| 936 | #endif /* ! defined (HAVE_X11) */ |
| 937 | } |
| 938 | } |
| 939 | |
| 940 | /* Perform a delete-lines operation, deleting N lines |
| 941 | at a vertical position curs_y. */ |
| 942 | |
| 943 | static void |
| 944 | scraplines (n) |
| 945 | register int n; |
| 946 | { |
| 947 | int mask; |
| 948 | register struct frame *f = updating_frame; |
| 949 | int intborder = f->display.x->internal_border_width; |
| 950 | |
| 951 | if (curs_y >= flexlines) |
| 952 | return; |
| 953 | |
| 954 | #ifndef HAVE_X11 |
| 955 | dumpqueue (); |
| 956 | #endif /* HAVE_X11 */ |
| 957 | |
| 958 | if ((curs_y + n) >= flexlines) |
| 959 | { |
| 960 | if (flexlines >= (curs_y + 1)) |
| 961 | { |
| 962 | #ifdef HAVE_X11 |
| 963 | XClearArea (x_current_display, FRAME_X_WINDOW (f), intborder, |
| 964 | CHAR_TO_PIXEL_ROW (f, curs_y), |
| 965 | f->width * FONT_WIDTH (f->display.x->font), |
| 966 | (flexlines - curs_y) * FONT_HEIGHT (f->display.x->font), False); |
| 967 | #else /* ! defined (HAVE_X11) */ |
| 968 | XPixSet (FRAME_X_WINDOW (f), |
| 969 | intborder, CHAR_TO_PIXEL_ROW (f, curs_y), |
| 970 | f->width * FONT_WIDTH (f->display.x->font), |
| 971 | (flexlines - curs_y) * FONT_HEIGHT (f->display.x->font), |
| 972 | f->display.x->background_pixel); |
| 973 | #endif /* ! defined (HAVE_X11) */ |
| 974 | } |
| 975 | } |
| 976 | else |
| 977 | { |
| 978 | #ifdef HAVE_X11 |
| 979 | XCopyArea (x_current_display, FRAME_X_WINDOW (f), |
| 980 | FRAME_X_WINDOW (f), f->display.x->normal_gc, |
| 981 | intborder, |
| 982 | CHAR_TO_PIXEL_ROW (f, curs_y + n), |
| 983 | f->width * FONT_WIDTH (f->display.x->font), |
| 984 | (flexlines - (curs_y + n)) * FONT_HEIGHT (f->display.x->font), |
| 985 | intborder, CHAR_TO_PIXEL_ROW (f, curs_y)); |
| 986 | XClearArea (x_current_display, FRAME_X_WINDOW (f), |
| 987 | intborder, |
| 988 | CHAR_TO_PIXEL_ROW (f, flexlines - n), |
| 989 | f->width * FONT_WIDTH (f->display.x->font), |
| 990 | n * FONT_HEIGHT (f->display.x->font), False); |
| 991 | #else /* ! defined (HAVE_X11) */ |
| 992 | XMoveArea (FRAME_X_WINDOW (f), |
| 993 | intborder, |
| 994 | CHAR_TO_PIXEL_ROW (f, curs_y + n), |
| 995 | intborder, CHAR_TO_PIXEL_ROW (f, curs_y), |
| 996 | f->width * FONT_WIDTH (f->display.x->font), |
| 997 | (flexlines - (curs_y + n)) * FONT_HEIGHT (f->display.x->font)); |
| 998 | /* Now we must process any ExposeRegion events that occur |
| 999 | if the area being copied from is obscured. |
| 1000 | We can't let it wait because further i/d operations |
| 1001 | may want to copy this area to another area. */ |
| 1002 | x_read_exposes (); |
| 1003 | XPixSet (FRAME_X_WINDOW (f), intborder, |
| 1004 | CHAR_TO_PIXEL_ROW (f, flexlines - n), |
| 1005 | f->width * FONT_WIDTH (f->display.x->font), |
| 1006 | n * FONT_HEIGHT (f->display.x->font), f->display.x->background_pixel); |
| 1007 | #endif /* ! defined (HAVE_X11) */ |
| 1008 | } |
| 1009 | } |
| 1010 | |
| 1011 | /* Perform an insert-lines or delete-lines operation, |
| 1012 | inserting N lines or deleting -N lines at vertical position VPOS. */ |
| 1013 | |
| 1014 | XTins_del_lines (vpos, n) |
| 1015 | int vpos, n; |
| 1016 | { |
| 1017 | if (updating_frame == 0) |
| 1018 | abort (); |
| 1019 | |
| 1020 | /* Hide the cursor. */ |
| 1021 | x_display_cursor (updating_frame, 0); |
| 1022 | |
| 1023 | XTcursor_to (vpos, 0); |
| 1024 | |
| 1025 | BLOCK_INPUT; |
| 1026 | if (n >= 0) |
| 1027 | stufflines (n); |
| 1028 | else |
| 1029 | scraplines (-n); |
| 1030 | XFlushQueue (); |
| 1031 | UNBLOCK_INPUT; |
| 1032 | } |
| 1033 | \f |
| 1034 | /* Support routines for exposure events. */ |
| 1035 | static void clear_cursor (); |
| 1036 | |
| 1037 | /* Output into a rectangle of an X-window (for frame F) |
| 1038 | the characters in f->phys_lines that overlap that rectangle. |
| 1039 | TOP and LEFT are the position of the upper left corner of the rectangle. |
| 1040 | ROWS and COLS are the size of the rectangle. */ |
| 1041 | |
| 1042 | static void |
| 1043 | dumprectangle (f, left, top, cols, rows) |
| 1044 | struct frame *f; |
| 1045 | register int left, top, cols, rows; |
| 1046 | { |
| 1047 | register struct frame_glyphs *active_frame = FRAME_CURRENT_GLYPHS (f); |
| 1048 | int cursor_cleared = 0; |
| 1049 | int bottom, right; |
| 1050 | register int y; |
| 1051 | |
| 1052 | if (FRAME_GARBAGED_P (f)) |
| 1053 | return; |
| 1054 | |
| 1055 | /* Express rectangle as four edges, instead of position-and-size. */ |
| 1056 | bottom = top + rows; |
| 1057 | right = left + cols; |
| 1058 | |
| 1059 | #ifndef HAVE_X11 /* Window manger does this for X11. */ |
| 1060 | { |
| 1061 | int intborder = f->display.x->internal_border_width; |
| 1062 | |
| 1063 | /* If the rectangle includes any of the internal border area, |
| 1064 | redisplay the border emphasis. */ |
| 1065 | if (top < intborder || left < intborder |
| 1066 | || bottom > intborder + f->height * FONT_HEIGHT (f->display.x->font) |
| 1067 | || right > intborder + f->width * FONT_WIDTH (f->display.x->font)) |
| 1068 | dumpborder (f, 0); |
| 1069 | } |
| 1070 | #endif /* HAVE_X11 Window manger does this for X11. */ |
| 1071 | |
| 1072 | /* Convert rectangle edges in pixels to edges in chars. |
| 1073 | Round down for left and top, up for right and bottom. */ |
| 1074 | top = PIXEL_TO_CHAR_ROW (f, top); |
| 1075 | left = PIXEL_TO_CHAR_COL (f, left); |
| 1076 | bottom += (FONT_HEIGHT (f->display.x->font) - 1); |
| 1077 | right += (FONT_WIDTH (f->display.x->font) - 1); |
| 1078 | bottom = PIXEL_TO_CHAR_ROW (f, bottom); |
| 1079 | right = PIXEL_TO_CHAR_COL (f, right); |
| 1080 | |
| 1081 | /* Clip the rectangle to what can be visible. */ |
| 1082 | if (left < 0) |
| 1083 | left = 0; |
| 1084 | if (top < 0) |
| 1085 | top = 0; |
| 1086 | if (right > f->width) |
| 1087 | right = f->width; |
| 1088 | if (bottom > f->height) |
| 1089 | bottom = f->height; |
| 1090 | |
| 1091 | /* Get size in chars of the rectangle. */ |
| 1092 | cols = right - left; |
| 1093 | rows = bottom - top; |
| 1094 | |
| 1095 | /* If rectangle has zero area, return. */ |
| 1096 | if (rows <= 0) return; |
| 1097 | if (cols <= 0) return; |
| 1098 | |
| 1099 | /* Turn off the cursor if it is in the rectangle. |
| 1100 | We will turn it back on afterward. */ |
| 1101 | if ((f->phys_cursor_x >= left) && (f->phys_cursor_x < right) |
| 1102 | && (f->phys_cursor_y >= top) && (f->phys_cursor_y < bottom)) |
| 1103 | { |
| 1104 | clear_cursor (f); |
| 1105 | cursor_cleared = 1; |
| 1106 | } |
| 1107 | |
| 1108 | /* Display the text in the rectangle, one text line at a time. */ |
| 1109 | |
| 1110 | for (y = top; y < bottom; y++) |
| 1111 | { |
| 1112 | GLYPH *line = &active_frame->glyphs[y][left]; |
| 1113 | |
| 1114 | if (! active_frame->enable[y] || left > active_frame->used[y]) |
| 1115 | continue; |
| 1116 | |
| 1117 | dumpglyphs (f, |
| 1118 | CHAR_TO_PIXEL_COL (f, left), |
| 1119 | CHAR_TO_PIXEL_ROW (f, y), |
| 1120 | line, min (cols, active_frame->used[y] - left), |
| 1121 | active_frame->highlight[y]); |
| 1122 | } |
| 1123 | |
| 1124 | /* Turn the cursor on if we turned it off. */ |
| 1125 | |
| 1126 | if (cursor_cleared) |
| 1127 | x_display_cursor (f, 1); |
| 1128 | } |
| 1129 | |
| 1130 | #ifndef HAVE_X11 |
| 1131 | /* Process all queued ExposeRegion events. */ |
| 1132 | |
| 1133 | static void |
| 1134 | dumpqueue () |
| 1135 | { |
| 1136 | register int i; |
| 1137 | XExposeRegionEvent r; |
| 1138 | |
| 1139 | while (dequeue_event (&r, &x_expose_queue)) |
| 1140 | { |
| 1141 | struct frame *f = x_window_to_frame (r.window); |
| 1142 | if (f->display.x->icon_desc == r.window) |
| 1143 | refreshicon (f); |
| 1144 | else |
| 1145 | dumprectangle (f, r.x, r.y, r.width, r.height); |
| 1146 | } |
| 1147 | XFlushQueue (); |
| 1148 | } |
| 1149 | #endif /* HAVE_X11 */ |
| 1150 | \f |
| 1151 | /* Process all expose events that are pending, for X10. |
| 1152 | Redraws the cursor if necessary on any frame that |
| 1153 | is not in the process of being updated with update_frame. */ |
| 1154 | |
| 1155 | #ifndef HAVE_X11 |
| 1156 | static void |
| 1157 | x_do_pending_expose () |
| 1158 | { |
| 1159 | int mask; |
| 1160 | struct frame *f; |
| 1161 | Lisp_Object tail, frame; |
| 1162 | |
| 1163 | if (expose_all_windows) |
| 1164 | { |
| 1165 | expose_all_windows = 0; |
| 1166 | for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr) |
| 1167 | { |
| 1168 | register int temp_width, temp_height; |
| 1169 | int intborder; |
| 1170 | |
| 1171 | frame = XCONS (tail)->car; |
| 1172 | if (XGCTYPE (frame) != Lisp_Frame) |
| 1173 | continue; |
| 1174 | f = XFRAME (frame); |
| 1175 | if (! FRAME_X_P (f)) |
| 1176 | continue; |
| 1177 | if (!f->async_visible) |
| 1178 | continue; |
| 1179 | if (!f->display.x->needs_exposure) |
| 1180 | continue; |
| 1181 | |
| 1182 | intborder = f->display.x->internal_border_width; |
| 1183 | |
| 1184 | clear_cursor (f); |
| 1185 | XGetWindowInfo (FRAME_X_WINDOW (f), &windowinfo); |
| 1186 | temp_width = ((windowinfo.width - 2 * intborder |
| 1187 | - f->display.x->v_scroll_bar_width) |
| 1188 | / FONT_WIDTH (f->display.x->font)); |
| 1189 | temp_height = ((windowinfo.height- 2 * intborder |
| 1190 | - f->display.x->h_scroll_bar_height) |
| 1191 | / FONT_HEIGHT (f->display.x->font)); |
| 1192 | if (temp_width != f->width || temp_height != f->height) |
| 1193 | { |
| 1194 | change_frame_size (f, max (1, temp_height), |
| 1195 | max (1, temp_width), 0, 1); |
| 1196 | x_resize_scroll_bars (f); |
| 1197 | } |
| 1198 | f->display.x->left_pos = windowinfo.x; |
| 1199 | f->display.x->top_pos = windowinfo.y; |
| 1200 | dumprectangle (f, 0, 0, PIXEL_WIDTH (f), PIXEL_HEIGHT (f)); |
| 1201 | #if 0 |
| 1202 | dumpborder (f, 0); |
| 1203 | #endif /* ! 0 */ |
| 1204 | f->display.x->needs_exposure = 0; |
| 1205 | if (updating_frame != f) |
| 1206 | x_display_cursor (f, 1); |
| 1207 | XFlushQueue (); |
| 1208 | } |
| 1209 | } |
| 1210 | else |
| 1211 | /* Handle any individual-rectangle expose events queued |
| 1212 | for various windows. */ |
| 1213 | #ifdef HAVE_X11 |
| 1214 | ; |
| 1215 | #else /* ! defined (HAVE_X11) */ |
| 1216 | dumpqueue (); |
| 1217 | #endif /* ! defined (HAVE_X11) */ |
| 1218 | } |
| 1219 | #endif |
| 1220 | |
| 1221 | #ifdef HAVE_X11 |
| 1222 | static void |
| 1223 | frame_highlight (frame) |
| 1224 | struct frame *frame; |
| 1225 | { |
| 1226 | if (! EQ (Vx_no_window_manager, Qnil)) |
| 1227 | XSetWindowBorder (x_current_display, FRAME_X_WINDOW (frame), |
| 1228 | frame->display.x->border_pixel); |
| 1229 | x_display_cursor (frame, 1); |
| 1230 | } |
| 1231 | |
| 1232 | static void |
| 1233 | frame_unhighlight (frame) |
| 1234 | struct frame *frame; |
| 1235 | { |
| 1236 | if (! EQ (Vx_no_window_manager, Qnil)) |
| 1237 | XSetWindowBorderPixmap (x_current_display, FRAME_X_WINDOW (frame), |
| 1238 | frame->display.x->border_tile); |
| 1239 | x_display_cursor (frame, 1); |
| 1240 | } |
| 1241 | #else /* ! defined (HAVE_X11) */ |
| 1242 | /* Dump the border-emphasis of frame F. |
| 1243 | If F is selected, this is a lining of the same color as the border, |
| 1244 | just within the border, occupying a portion of the internal border. |
| 1245 | If F is not selected, it is background in the same place. |
| 1246 | If ALWAYS is 0, don't bother explicitly drawing if it's background. |
| 1247 | |
| 1248 | ALWAYS = 1 is used when a frame becomes selected or deselected. |
| 1249 | In that case, we also turn the cursor off and on again |
| 1250 | so it will appear in the proper shape (solid if selected; else hollow.) */ |
| 1251 | |
| 1252 | static void |
| 1253 | dumpborder (f, always) |
| 1254 | struct frame *f; |
| 1255 | int always; |
| 1256 | { |
| 1257 | int thickness = f->display.x->internal_border_width / 2; |
| 1258 | int width = PIXEL_WIDTH (f); |
| 1259 | int height = PIXEL_HEIGHT (f); |
| 1260 | int pixel; |
| 1261 | |
| 1262 | if (f != selected_frame) |
| 1263 | { |
| 1264 | if (!always) |
| 1265 | return; |
| 1266 | |
| 1267 | pixel = f->display.x->background_pixel; |
| 1268 | } |
| 1269 | else |
| 1270 | { |
| 1271 | pixel = f->display.x->border_pixel; |
| 1272 | } |
| 1273 | |
| 1274 | XPixSet (FRAME_X_WINDOW (f), 0, 0, width, thickness, pixel); |
| 1275 | XPixSet (FRAME_X_WINDOW (f), 0, 0, thickness, height, pixel); |
| 1276 | XPixSet (FRAME_X_WINDOW (f), 0, height - thickness, width, |
| 1277 | thickness, pixel); |
| 1278 | XPixSet (FRAME_X_WINDOW (f), width - thickness, 0, thickness, |
| 1279 | height, pixel); |
| 1280 | |
| 1281 | if (always) |
| 1282 | x_display_cursor (f, 1); |
| 1283 | } |
| 1284 | #endif /* ! defined (HAVE_X11) */ |
| 1285 | |
| 1286 | static void XTframe_rehighlight (); |
| 1287 | |
| 1288 | /* The focus has changed. Update the frames as necessary to reflect |
| 1289 | the new situation. Note that we can't change the selected frame |
| 1290 | here, because the lisp code we are interrupting might become confused. |
| 1291 | Each event gets marked with the frame in which it occurred, so the |
| 1292 | lisp code can tell when the switch took place by examining the events. */ |
| 1293 | |
| 1294 | static void |
| 1295 | x_new_focus_frame (frame) |
| 1296 | struct frame *frame; |
| 1297 | { |
| 1298 | struct frame *old_focus = x_focus_frame; |
| 1299 | int events_enqueued = 0; |
| 1300 | |
| 1301 | if (frame != x_focus_frame) |
| 1302 | { |
| 1303 | /* Set this before calling other routines, so that they see |
| 1304 | the correct value of x_focus_frame. */ |
| 1305 | x_focus_frame = frame; |
| 1306 | |
| 1307 | if (old_focus && old_focus->auto_lower) |
| 1308 | x_lower_frame (old_focus); |
| 1309 | |
| 1310 | #if 0 |
| 1311 | selected_frame = frame; |
| 1312 | XSET (XWINDOW (selected_frame->selected_window)->frame, |
| 1313 | Lisp_Frame, selected_frame); |
| 1314 | Fselect_window (selected_frame->selected_window); |
| 1315 | choose_minibuf_frame (); |
| 1316 | #endif /* ! 0 */ |
| 1317 | |
| 1318 | if (x_focus_frame && x_focus_frame->auto_raise) |
| 1319 | x_raise_frame (x_focus_frame); |
| 1320 | } |
| 1321 | |
| 1322 | XTframe_rehighlight (); |
| 1323 | } |
| 1324 | |
| 1325 | |
| 1326 | /* The focus has changed, or we have redirected a frame's focus to |
| 1327 | another frame (this happens when a frame uses a surrogate |
| 1328 | minibuffer frame). Shift the highlight as appropriate. */ |
| 1329 | static void |
| 1330 | XTframe_rehighlight () |
| 1331 | { |
| 1332 | struct frame *old_highlight = x_highlight_frame; |
| 1333 | |
| 1334 | if (x_focus_frame) |
| 1335 | { |
| 1336 | x_highlight_frame = |
| 1337 | ((XGCTYPE (FRAME_FOCUS_FRAME (x_focus_frame)) == Lisp_Frame) |
| 1338 | ? XFRAME (FRAME_FOCUS_FRAME (x_focus_frame)) |
| 1339 | : x_focus_frame); |
| 1340 | if (! FRAME_LIVE_P (x_highlight_frame)) |
| 1341 | { |
| 1342 | FRAME_FOCUS_FRAME (x_focus_frame) = Qnil; |
| 1343 | x_highlight_frame = x_focus_frame; |
| 1344 | } |
| 1345 | } |
| 1346 | else |
| 1347 | x_highlight_frame = 0; |
| 1348 | |
| 1349 | if (x_highlight_frame != old_highlight) |
| 1350 | { |
| 1351 | if (old_highlight) |
| 1352 | frame_unhighlight (old_highlight); |
| 1353 | if (x_highlight_frame) |
| 1354 | frame_highlight (x_highlight_frame); |
| 1355 | } |
| 1356 | } |
| 1357 | \f |
| 1358 | /* Keyboard processing - modifier keys, vendor-specific keysyms, etc. */ |
| 1359 | |
| 1360 | /* Which modifier keys are on which modifier bits? |
| 1361 | |
| 1362 | With each keystroke, X returns eight bits indicating which modifier |
| 1363 | keys were held down when the key was pressed. The interpretation |
| 1364 | of the top five modifier bits depends on what keys are attached |
| 1365 | to them. If the Meta_L and Meta_R keysyms are on mod5, then mod5 |
| 1366 | is the meta bit. |
| 1367 | |
| 1368 | x_meta_mod_mask is a mask containing the bits used for the meta key. |
| 1369 | It may have more than one bit set, if more than one modifier bit |
| 1370 | has meta keys on it. Basically, if EVENT is a KeyPress event, |
| 1371 | the meta key is pressed if (EVENT.state & x_meta_mod_mask) != 0. |
| 1372 | |
| 1373 | x_shift_lock_mask is LockMask if the XK_Shift_Lock keysym is on the |
| 1374 | lock modifier bit, or zero otherwise. Non-alphabetic keys should |
| 1375 | only be affected by the lock modifier bit if XK_Shift_Lock is in |
| 1376 | use; XK_Caps_Lock should only affect alphabetic keys. With this |
| 1377 | arrangement, the lock modifier should shift the character if |
| 1378 | (EVENT.state & x_shift_lock_mask) != 0. */ |
| 1379 | static int x_meta_mod_mask, x_shift_lock_mask; |
| 1380 | |
| 1381 | /* These are like x_meta_mod_mask, but for different modifiers. */ |
| 1382 | static int x_alt_mod_mask, x_super_mod_mask, x_hyper_mod_mask; |
| 1383 | |
| 1384 | /* Initialize mode_switch_bit and modifier_meaning. */ |
| 1385 | static void |
| 1386 | x_find_modifier_meanings () |
| 1387 | { |
| 1388 | int min_code, max_code; |
| 1389 | KeySym *syms; |
| 1390 | int syms_per_code; |
| 1391 | XModifierKeymap *mods; |
| 1392 | |
| 1393 | x_meta_mod_mask = 0; |
| 1394 | x_shift_lock_mask = 0; |
| 1395 | x_alt_mod_mask = 0; |
| 1396 | x_super_mod_mask = 0; |
| 1397 | x_hyper_mod_mask = 0; |
| 1398 | |
| 1399 | #ifdef HAVE_X11R4 |
| 1400 | XDisplayKeycodes (x_current_display, &min_code, &max_code); |
| 1401 | #else |
| 1402 | min_code = x_current_display->min_keycode; |
| 1403 | max_code = x_current_display->max_keycode; |
| 1404 | #endif |
| 1405 | |
| 1406 | syms = XGetKeyboardMapping (x_current_display, |
| 1407 | min_code, max_code - min_code + 1, |
| 1408 | &syms_per_code); |
| 1409 | mods = XGetModifierMapping (x_current_display); |
| 1410 | |
| 1411 | /* Scan the modifier table to see which modifier bits the Meta and |
| 1412 | Alt keysyms are on. */ |
| 1413 | { |
| 1414 | int row, col; /* The row and column in the modifier table. */ |
| 1415 | |
| 1416 | for (row = 3; row < 8; row++) |
| 1417 | for (col = 0; col < mods->max_keypermod; col++) |
| 1418 | { |
| 1419 | KeyCode code = |
| 1420 | mods->modifiermap[(row * mods->max_keypermod) + col]; |
| 1421 | |
| 1422 | /* Are any of this keycode's keysyms a meta key? */ |
| 1423 | { |
| 1424 | int code_col; |
| 1425 | |
| 1426 | for (code_col = 0; code_col < syms_per_code; code_col++) |
| 1427 | { |
| 1428 | int sym = syms[((code - min_code) * syms_per_code) + code_col]; |
| 1429 | |
| 1430 | switch (sym) |
| 1431 | { |
| 1432 | case XK_Meta_L: |
| 1433 | case XK_Meta_R: |
| 1434 | x_meta_mod_mask |= (1 << row); |
| 1435 | break; |
| 1436 | |
| 1437 | case XK_Alt_L: |
| 1438 | case XK_Alt_R: |
| 1439 | x_alt_mod_mask |= (1 << row); |
| 1440 | break; |
| 1441 | |
| 1442 | case XK_Hyper_L: |
| 1443 | case XK_Hyper_R: |
| 1444 | x_hyper_mod_mask |= (1 << row); |
| 1445 | break; |
| 1446 | |
| 1447 | case XK_Super_L: |
| 1448 | case XK_Super_R: |
| 1449 | x_super_mod_mask |= (1 << row); |
| 1450 | break; |
| 1451 | |
| 1452 | case XK_Shift_Lock: |
| 1453 | /* Ignore this if it's not on the lock modifier. */ |
| 1454 | if ((1 << row) == LockMask) |
| 1455 | x_shift_lock_mask = LockMask; |
| 1456 | break; |
| 1457 | } |
| 1458 | } |
| 1459 | } |
| 1460 | } |
| 1461 | } |
| 1462 | |
| 1463 | /* If we couldn't find any meta keys, accept any alt keys as meta keys. */ |
| 1464 | if (! x_meta_mod_mask) |
| 1465 | { |
| 1466 | x_meta_mod_mask = x_alt_mod_mask; |
| 1467 | x_alt_mod_mask = 0; |
| 1468 | } |
| 1469 | |
| 1470 | /* If some keys are both alt and meta, |
| 1471 | make them just meta, not alt. */ |
| 1472 | if (x_alt_mod_mask & x_meta_mod_mask) |
| 1473 | { |
| 1474 | x_alt_mod_mask &= ~x_meta_mod_mask; |
| 1475 | } |
| 1476 | |
| 1477 | XFree ((char *) syms); |
| 1478 | XFreeModifiermap (mods); |
| 1479 | } |
| 1480 | |
| 1481 | |
| 1482 | /* Convert between the modifier bits X uses and the modifier bits |
| 1483 | Emacs uses. */ |
| 1484 | static unsigned int |
| 1485 | x_x_to_emacs_modifiers (state) |
| 1486 | unsigned int state; |
| 1487 | { |
| 1488 | return ( ((state & (ShiftMask | x_shift_lock_mask)) ? shift_modifier : 0) |
| 1489 | | ((state & ControlMask) ? ctrl_modifier : 0) |
| 1490 | | ((state & x_meta_mod_mask) ? meta_modifier : 0) |
| 1491 | | ((state & x_alt_mod_mask) ? alt_modifier : 0) |
| 1492 | | ((state & x_super_mod_mask) ? super_modifier : 0) |
| 1493 | | ((state & x_hyper_mod_mask) ? hyper_modifier : 0)); |
| 1494 | } |
| 1495 | |
| 1496 | static unsigned int |
| 1497 | x_emacs_to_x_modifiers (state) |
| 1498 | unsigned int state; |
| 1499 | { |
| 1500 | return ( ((state & alt_modifier) ? x_alt_mod_mask : 0) |
| 1501 | | ((state & super_modifier) ? x_super_mod_mask : 0) |
| 1502 | | ((state & hyper_modifier) ? x_hyper_mod_mask : 0) |
| 1503 | | ((state & shift_modifier) ? ShiftMask : 0) |
| 1504 | | ((state & ctrl_modifier) ? ControlMask : 0) |
| 1505 | | ((state & meta_modifier) ? x_meta_mod_mask : 0)); |
| 1506 | } |
| 1507 | |
| 1508 | /* Return true iff KEYSYM is a vendor-specific keysym that we should |
| 1509 | return as a function key. If you add a keysym to this, you should |
| 1510 | make sure that the tables make_lispy_event uses contain a suitable |
| 1511 | name for it. */ |
| 1512 | static int |
| 1513 | x_is_vendor_fkey (sym) |
| 1514 | KeySym sym; |
| 1515 | { |
| 1516 | return 0 |
| 1517 | #ifdef DXK_Remove |
| 1518 | || (sym == DXK_Remove) |
| 1519 | #endif |
| 1520 | ; |
| 1521 | } |
| 1522 | |
| 1523 | \f |
| 1524 | /* Mouse clicks and mouse movement. Rah. */ |
| 1525 | #ifdef HAVE_X11 |
| 1526 | |
| 1527 | /* Given a pixel position (PIX_X, PIX_Y) on the frame F, return |
| 1528 | glyph co-ordinates in (*X, *Y). Set *BOUNDS to the rectangle |
| 1529 | that the glyph at X, Y occupies, if BOUNDS != 0. */ |
| 1530 | static void |
| 1531 | pixel_to_glyph_coords (f, pix_x, pix_y, x, y, bounds) |
| 1532 | FRAME_PTR f; |
| 1533 | register unsigned int pix_x, pix_y; |
| 1534 | register int *x, *y; |
| 1535 | XRectangle *bounds; |
| 1536 | { |
| 1537 | pix_x = PIXEL_TO_CHAR_COL (f, pix_x); |
| 1538 | pix_y = PIXEL_TO_CHAR_ROW (f, pix_y); |
| 1539 | |
| 1540 | if (bounds) |
| 1541 | { |
| 1542 | bounds->width = FONT_WIDTH (f->display.x->font); |
| 1543 | bounds->height = FONT_HEIGHT (f->display.x->font); |
| 1544 | bounds->x = CHAR_TO_PIXEL_COL (f, pix_x); |
| 1545 | bounds->y = CHAR_TO_PIXEL_ROW (f, pix_y); |
| 1546 | } |
| 1547 | |
| 1548 | if (pix_x < 0) pix_x = 0; |
| 1549 | else if (pix_x > f->width) pix_x = f->width; |
| 1550 | |
| 1551 | if (pix_y < 0) pix_y = 0; |
| 1552 | else if (pix_y > f->height) pix_y = f->height; |
| 1553 | |
| 1554 | *x = pix_x; |
| 1555 | *y = pix_y; |
| 1556 | } |
| 1557 | |
| 1558 | /* Any buttons grabbed. */ |
| 1559 | unsigned int x_mouse_grabbed; |
| 1560 | |
| 1561 | /* Prepare a mouse-event in *RESULT for placement in the input queue. |
| 1562 | |
| 1563 | If the event is a button press, then note that we have grabbed |
| 1564 | the mouse. */ |
| 1565 | |
| 1566 | static Lisp_Object |
| 1567 | construct_mouse_click (result, event, f) |
| 1568 | struct input_event *result; |
| 1569 | XButtonEvent *event; |
| 1570 | struct frame *f; |
| 1571 | { |
| 1572 | /* Make the event type no_event; we'll change that when we decide |
| 1573 | otherwise. */ |
| 1574 | result->kind = mouse_click; |
| 1575 | XSET (result->code, Lisp_Int, event->button - Button1); |
| 1576 | result->timestamp = event->time; |
| 1577 | result->modifiers = (x_x_to_emacs_modifiers (event->state) |
| 1578 | | (event->type == ButtonRelease |
| 1579 | ? up_modifier |
| 1580 | : down_modifier)); |
| 1581 | |
| 1582 | /* Notice if the mouse is still grabbed. */ |
| 1583 | if (event->type == ButtonPress) |
| 1584 | { |
| 1585 | if (! x_mouse_grabbed) |
| 1586 | Vmouse_depressed = Qt; |
| 1587 | x_mouse_grabbed |= (1 << event->button); |
| 1588 | } |
| 1589 | else if (event->type == ButtonRelease) |
| 1590 | { |
| 1591 | x_mouse_grabbed &= ~(1 << event->button); |
| 1592 | if (!x_mouse_grabbed) |
| 1593 | Vmouse_depressed = Qnil; |
| 1594 | } |
| 1595 | |
| 1596 | { |
| 1597 | int row, column; |
| 1598 | |
| 1599 | pixel_to_glyph_coords (f, event->x, event->y, &column, &row, NULL); |
| 1600 | XFASTINT (result->x) = column; |
| 1601 | XFASTINT (result->y) = row; |
| 1602 | XSET (result->frame_or_window, Lisp_Frame, f); |
| 1603 | } |
| 1604 | } |
| 1605 | |
| 1606 | |
| 1607 | /* Mouse movement. Rah. |
| 1608 | |
| 1609 | In order to avoid asking for motion events and then throwing most |
| 1610 | of them away or busy-polling the server for mouse positions, we ask |
| 1611 | the server for pointer motion hints. This means that we get only |
| 1612 | one event per group of mouse movements. "Groups" are delimited by |
| 1613 | other kinds of events (focus changes and button clicks, for |
| 1614 | example), or by XQueryPointer calls; when one of these happens, we |
| 1615 | get another MotionNotify event the next time the mouse moves. This |
| 1616 | is at least as efficient as getting motion events when mouse |
| 1617 | tracking is on, and I suspect only negligibly worse when tracking |
| 1618 | is off. |
| 1619 | |
| 1620 | The silly O'Reilly & Associates Nutshell guides barely document |
| 1621 | pointer motion hints at all (I think you have to infer how they |
| 1622 | work from an example), and the description of XQueryPointer doesn't |
| 1623 | mention that calling it causes you to get another motion hint from |
| 1624 | the server, which is very important. */ |
| 1625 | |
| 1626 | /* Where the mouse was last time we reported a mouse event. */ |
| 1627 | static FRAME_PTR last_mouse_frame; |
| 1628 | static XRectangle last_mouse_glyph; |
| 1629 | |
| 1630 | /* The scroll bar in which the last X motion event occurred. |
| 1631 | |
| 1632 | If the last X motion event occurred in a scroll bar, we set this |
| 1633 | so XTmouse_position can know whether to report a scroll bar motion or |
| 1634 | an ordinary motion. |
| 1635 | |
| 1636 | If the last X motion event didn't occur in a scroll bar, we set this |
| 1637 | to Qnil, to tell XTmouse_position to return an ordinary motion event. */ |
| 1638 | static Lisp_Object last_mouse_scroll_bar; |
| 1639 | |
| 1640 | /* This is a hack. We would really prefer that XTmouse_position would |
| 1641 | return the time associated with the position it returns, but there |
| 1642 | doesn't seem to be any way to wrest the timestamp from the server |
| 1643 | along with the position query. So, we just keep track of the time |
| 1644 | of the last movement we received, and return that in hopes that |
| 1645 | it's somewhat accurate. */ |
| 1646 | static Time last_mouse_movement_time; |
| 1647 | |
| 1648 | /* Function to report a mouse movement to the mainstream Emacs code. |
| 1649 | The input handler calls this. |
| 1650 | |
| 1651 | We have received a mouse movement event, which is given in *event. |
| 1652 | If the mouse is over a different glyph than it was last time, tell |
| 1653 | the mainstream emacs code by setting mouse_moved. If not, ask for |
| 1654 | another motion event, so we can check again the next time it moves. */ |
| 1655 | static void |
| 1656 | note_mouse_movement (frame, event) |
| 1657 | FRAME_PTR frame; |
| 1658 | XMotionEvent *event; |
| 1659 | |
| 1660 | { |
| 1661 | last_mouse_movement_time = event->time; |
| 1662 | |
| 1663 | /* Has the mouse moved off the glyph it was on at the last sighting? */ |
| 1664 | if (event->x < last_mouse_glyph.x |
| 1665 | || event->x >= last_mouse_glyph.x + last_mouse_glyph.width |
| 1666 | || event->y < last_mouse_glyph.y |
| 1667 | || event->y >= last_mouse_glyph.y + last_mouse_glyph.height) |
| 1668 | { |
| 1669 | mouse_moved = 1; |
| 1670 | last_mouse_scroll_bar = Qnil; |
| 1671 | } |
| 1672 | else |
| 1673 | { |
| 1674 | /* It's on the same glyph. Call XQueryPointer so we'll get an |
| 1675 | event the next time the mouse moves and we can see if it's |
| 1676 | *still* on the same glyph. */ |
| 1677 | int dummy; |
| 1678 | |
| 1679 | XQueryPointer (event->display, event->window, |
| 1680 | (Window *) &dummy, (Window *) &dummy, |
| 1681 | &dummy, &dummy, &dummy, &dummy, |
| 1682 | (unsigned int *) &dummy); |
| 1683 | } |
| 1684 | } |
| 1685 | |
| 1686 | static struct scroll_bar *x_window_to_scroll_bar (); |
| 1687 | static void x_scroll_bar_report_motion (); |
| 1688 | |
| 1689 | /* Return the current position of the mouse. |
| 1690 | |
| 1691 | If the mouse movement started in a scroll bar, set *f, *bar_window, |
| 1692 | and *part to the frame, window, and scroll bar part that the mouse |
| 1693 | is over. Set *x and *y to the portion and whole of the mouse's |
| 1694 | position on the scroll bar. |
| 1695 | |
| 1696 | If the mouse movement started elsewhere, set *f to the frame the |
| 1697 | mouse is on, *bar_window to nil, and *x and *y to the character cell |
| 1698 | the mouse is over. |
| 1699 | |
| 1700 | Set *time to the server timestamp for the time at which the mouse |
| 1701 | was at this position. |
| 1702 | |
| 1703 | Don't store anything if we don't have a valid set of values to report. |
| 1704 | |
| 1705 | This clears the mouse_moved flag, so we can wait for the next mouse |
| 1706 | movement. This also calls XQueryPointer, which will cause the |
| 1707 | server to give us another MotionNotify when the mouse moves |
| 1708 | again. */ |
| 1709 | |
| 1710 | static void |
| 1711 | XTmouse_position (f, bar_window, part, x, y, time) |
| 1712 | FRAME_PTR *f; |
| 1713 | Lisp_Object *bar_window; |
| 1714 | enum scroll_bar_part *part; |
| 1715 | Lisp_Object *x, *y; |
| 1716 | unsigned long *time; |
| 1717 | { |
| 1718 | FRAME_PTR f1; |
| 1719 | |
| 1720 | BLOCK_INPUT; |
| 1721 | |
| 1722 | if (! NILP (last_mouse_scroll_bar)) |
| 1723 | x_scroll_bar_report_motion (f, bar_window, part, x, y, time); |
| 1724 | else |
| 1725 | { |
| 1726 | Window root; |
| 1727 | int root_x, root_y; |
| 1728 | |
| 1729 | Window dummy_window; |
| 1730 | int dummy; |
| 1731 | |
| 1732 | mouse_moved = 0; |
| 1733 | last_mouse_scroll_bar = Qnil; |
| 1734 | |
| 1735 | /* Figure out which root window we're on. */ |
| 1736 | XQueryPointer (x_current_display, |
| 1737 | DefaultRootWindow (x_current_display), |
| 1738 | |
| 1739 | /* The root window which contains the pointer. */ |
| 1740 | &root, |
| 1741 | |
| 1742 | /* Trash which we can't trust if the pointer is on |
| 1743 | a different screen. */ |
| 1744 | &dummy_window, |
| 1745 | |
| 1746 | /* The position on that root window. */ |
| 1747 | &root_x, &root_y, |
| 1748 | |
| 1749 | /* More trash we can't trust. */ |
| 1750 | &dummy, &dummy, |
| 1751 | |
| 1752 | /* Modifier keys and pointer buttons, about which |
| 1753 | we don't care. */ |
| 1754 | (unsigned int *) &dummy); |
| 1755 | |
| 1756 | /* Now we have a position on the root; find the innermost window |
| 1757 | containing the pointer. */ |
| 1758 | { |
| 1759 | Window win, child; |
| 1760 | int win_x, win_y; |
| 1761 | int parent_x, parent_y; |
| 1762 | |
| 1763 | win = root; |
| 1764 | for (;;) |
| 1765 | { |
| 1766 | XTranslateCoordinates (x_current_display, |
| 1767 | |
| 1768 | /* From-window, to-window. */ |
| 1769 | root, win, |
| 1770 | |
| 1771 | /* From-position, to-position. */ |
| 1772 | root_x, root_y, &win_x, &win_y, |
| 1773 | |
| 1774 | /* Child of win. */ |
| 1775 | &child); |
| 1776 | |
| 1777 | if (child == None) |
| 1778 | break; |
| 1779 | |
| 1780 | win = child; |
| 1781 | parent_x = win_x; |
| 1782 | parent_y = win_y; |
| 1783 | } |
| 1784 | |
| 1785 | /* Now we know that: |
| 1786 | win is the innermost window containing the pointer |
| 1787 | (XTC says it has no child containing the pointer), |
| 1788 | win_x and win_y are the pointer's position in it |
| 1789 | (XTC did this the last time through), and |
| 1790 | parent_x and parent_y are the pointer's position in win's parent. |
| 1791 | (They are what win_x and win_y were when win was child. |
| 1792 | If win is the root window, it has no parent, and |
| 1793 | parent_{x,y} are invalid, but that's okay, because we'll |
| 1794 | never use them in that case.) */ |
| 1795 | |
| 1796 | /* Is win one of our frames? */ |
| 1797 | f1 = x_window_to_frame (win); |
| 1798 | |
| 1799 | /* If not, is it one of our scroll bars? */ |
| 1800 | if (! f1) |
| 1801 | { |
| 1802 | struct scroll_bar *bar = x_window_to_scroll_bar (win); |
| 1803 | |
| 1804 | if (bar) |
| 1805 | { |
| 1806 | f1 = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); |
| 1807 | win_x = parent_x; |
| 1808 | win_y = parent_y; |
| 1809 | } |
| 1810 | } |
| 1811 | |
| 1812 | if (f1) |
| 1813 | { |
| 1814 | /* Ok, we found a frame. Convert from pixels to characters |
| 1815 | and store all the values. */ |
| 1816 | |
| 1817 | pixel_to_glyph_coords (f1, win_x, win_y, &win_x, &win_y, |
| 1818 | &last_mouse_glyph); |
| 1819 | |
| 1820 | *bar_window = Qnil; |
| 1821 | *part = 0; |
| 1822 | *f = f1; |
| 1823 | XSET (*x, Lisp_Int, win_x); |
| 1824 | XSET (*y, Lisp_Int, win_y); |
| 1825 | *time = last_mouse_movement_time; |
| 1826 | } |
| 1827 | } |
| 1828 | } |
| 1829 | |
| 1830 | UNBLOCK_INPUT; |
| 1831 | } |
| 1832 | |
| 1833 | #else /* ! defined (HAVE_X11) */ |
| 1834 | #define XEvent XKeyPressedEvent |
| 1835 | #endif /* ! defined (HAVE_X11) */ |
| 1836 | \f |
| 1837 | /* Scroll bar support. */ |
| 1838 | |
| 1839 | /* Given an X window ID, find the struct scroll_bar which manages it. |
| 1840 | This can be called in GC, so we have to make sure to strip off mark |
| 1841 | bits. */ |
| 1842 | static struct scroll_bar * |
| 1843 | x_window_to_scroll_bar (window_id) |
| 1844 | Window window_id; |
| 1845 | { |
| 1846 | Lisp_Object tail, frame; |
| 1847 | |
| 1848 | for (tail = Vframe_list; |
| 1849 | XGCTYPE (tail) == Lisp_Cons; |
| 1850 | tail = XCONS (tail)->cdr) |
| 1851 | { |
| 1852 | Lisp_Object frame = XCONS (tail)->car; |
| 1853 | Lisp_Object bar, condemned; |
| 1854 | |
| 1855 | /* All elements of Vframe_list should be frames. */ |
| 1856 | if (XGCTYPE (frame) != Lisp_Frame) |
| 1857 | abort (); |
| 1858 | |
| 1859 | /* Scan this frame's scroll bar list for a scroll bar with the |
| 1860 | right window ID. */ |
| 1861 | condemned = FRAME_CONDEMNED_SCROLL_BARS (XFRAME (frame)); |
| 1862 | for (bar = FRAME_SCROLL_BARS (XFRAME (frame)); |
| 1863 | /* This trick allows us to search both the ordinary and |
| 1864 | condemned scroll bar lists with one loop. */ |
| 1865 | ! GC_NILP (bar) || (bar = condemned, |
| 1866 | condemned = Qnil, |
| 1867 | ! GC_NILP (bar)); |
| 1868 | bar = XSCROLL_BAR(bar)->next) |
| 1869 | if (SCROLL_BAR_X_WINDOW (XSCROLL_BAR (bar)) == window_id) |
| 1870 | return XSCROLL_BAR (bar); |
| 1871 | } |
| 1872 | |
| 1873 | return 0; |
| 1874 | } |
| 1875 | |
| 1876 | /* Open a new X window to serve as a scroll bar, and return the |
| 1877 | scroll bar vector for it. */ |
| 1878 | static struct scroll_bar * |
| 1879 | x_scroll_bar_create (window, top, left, width, height) |
| 1880 | struct window *window; |
| 1881 | int top, left, width, height; |
| 1882 | { |
| 1883 | FRAME_PTR frame = XFRAME (WINDOW_FRAME (window)); |
| 1884 | struct scroll_bar *bar = |
| 1885 | XSCROLL_BAR (Fmake_vector (make_number (SCROLL_BAR_VEC_SIZE), Qnil)); |
| 1886 | |
| 1887 | BLOCK_INPUT; |
| 1888 | |
| 1889 | { |
| 1890 | XSetWindowAttributes a; |
| 1891 | unsigned long mask; |
| 1892 | |
| 1893 | a.background_pixel = frame->display.x->background_pixel; |
| 1894 | a.event_mask = (ButtonPressMask | ButtonReleaseMask |
| 1895 | | ButtonMotionMask | PointerMotionHintMask |
| 1896 | | ExposureMask); |
| 1897 | a.cursor = x_vertical_scroll_bar_cursor; |
| 1898 | |
| 1899 | mask = (CWBackPixel | CWEventMask | CWCursor); |
| 1900 | |
| 1901 | SET_SCROLL_BAR_X_WINDOW |
| 1902 | (bar, |
| 1903 | XCreateWindow (x_current_display, FRAME_X_WINDOW (frame), |
| 1904 | |
| 1905 | /* Position and size of scroll bar. */ |
| 1906 | left, top, width, height, |
| 1907 | |
| 1908 | /* Border width, depth, class, and visual. */ |
| 1909 | 0, CopyFromParent, CopyFromParent, CopyFromParent, |
| 1910 | |
| 1911 | /* Attributes. */ |
| 1912 | mask, &a)); |
| 1913 | } |
| 1914 | |
| 1915 | XSET (bar->window, Lisp_Window, window); |
| 1916 | XSET (bar->top, Lisp_Int, top); |
| 1917 | XSET (bar->left, Lisp_Int, left); |
| 1918 | XSET (bar->width, Lisp_Int, width); |
| 1919 | XSET (bar->height, Lisp_Int, height); |
| 1920 | XSET (bar->start, Lisp_Int, 0); |
| 1921 | XSET (bar->end, Lisp_Int, 0); |
| 1922 | bar->dragging = Qnil; |
| 1923 | |
| 1924 | /* Add bar to its frame's list of scroll bars. */ |
| 1925 | bar->next = FRAME_SCROLL_BARS (frame); |
| 1926 | bar->prev = Qnil; |
| 1927 | XSET (FRAME_SCROLL_BARS (frame), Lisp_Vector, bar); |
| 1928 | if (! NILP (bar->next)) |
| 1929 | XSET (XSCROLL_BAR (bar->next)->prev, Lisp_Vector, bar); |
| 1930 | |
| 1931 | XMapWindow (x_current_display, SCROLL_BAR_X_WINDOW (bar)); |
| 1932 | |
| 1933 | UNBLOCK_INPUT; |
| 1934 | |
| 1935 | return bar; |
| 1936 | } |
| 1937 | |
| 1938 | /* Draw BAR's handle in the proper position. |
| 1939 | If the handle is already drawn from START to END, don't bother |
| 1940 | redrawing it, unless REBUILD is non-zero; in that case, always |
| 1941 | redraw it. (REBUILD is handy for drawing the handle after expose |
| 1942 | events.) |
| 1943 | |
| 1944 | Normally, we want to constrain the start and end of the handle to |
| 1945 | fit inside its rectangle, but if the user is dragging the scroll bar |
| 1946 | handle, we want to let them drag it down all the way, so that the |
| 1947 | bar's top is as far down as it goes; otherwise, there's no way to |
| 1948 | move to the very end of the buffer. */ |
| 1949 | static void |
| 1950 | x_scroll_bar_set_handle (bar, start, end, rebuild) |
| 1951 | struct scroll_bar *bar; |
| 1952 | int start, end; |
| 1953 | int rebuild; |
| 1954 | { |
| 1955 | int dragging = ! NILP (bar->dragging); |
| 1956 | Window w = SCROLL_BAR_X_WINDOW (bar); |
| 1957 | GC gc = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)))->display.x->normal_gc; |
| 1958 | |
| 1959 | /* If the display is already accurate, do nothing. */ |
| 1960 | if (! rebuild |
| 1961 | && start == XINT (bar->start) |
| 1962 | && end == XINT (bar->end)) |
| 1963 | return; |
| 1964 | |
| 1965 | BLOCK_INPUT; |
| 1966 | |
| 1967 | { |
| 1968 | int inside_width = VERTICAL_SCROLL_BAR_INSIDE_WIDTH (XINT (bar->width)); |
| 1969 | int inside_height = VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (XINT (bar->height)); |
| 1970 | int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (XINT (bar->height)); |
| 1971 | |
| 1972 | /* Make sure the values are reasonable, and try to preserve |
| 1973 | the distance between start and end. */ |
| 1974 | { |
| 1975 | int length = end - start; |
| 1976 | |
| 1977 | if (start < 0) |
| 1978 | start = 0; |
| 1979 | else if (start > top_range) |
| 1980 | start = top_range; |
| 1981 | end = start + length; |
| 1982 | |
| 1983 | if (end < start) |
| 1984 | end = start; |
| 1985 | else if (end > top_range && ! dragging) |
| 1986 | end = top_range; |
| 1987 | } |
| 1988 | |
| 1989 | /* Store the adjusted setting in the scroll bar. */ |
| 1990 | XSET (bar->start, Lisp_Int, start); |
| 1991 | XSET (bar->end, Lisp_Int, end); |
| 1992 | |
| 1993 | /* Clip the end position, just for display. */ |
| 1994 | if (end > top_range) |
| 1995 | end = top_range; |
| 1996 | |
| 1997 | /* Draw bottom positions VERTICAL_SCROLL_BAR_MIN_HANDLE pixels |
| 1998 | below top positions, to make sure the handle is always at least |
| 1999 | that many pixels tall. */ |
| 2000 | end += VERTICAL_SCROLL_BAR_MIN_HANDLE; |
| 2001 | |
| 2002 | /* Draw the empty space above the handle. Note that we can't clear |
| 2003 | zero-height areas; that means "clear to end of window." */ |
| 2004 | if (0 < start) |
| 2005 | XClearArea (x_current_display, w, |
| 2006 | |
| 2007 | /* x, y, width, height, and exposures. */ |
| 2008 | VERTICAL_SCROLL_BAR_LEFT_BORDER, |
| 2009 | VERTICAL_SCROLL_BAR_TOP_BORDER, |
| 2010 | inside_width, start, |
| 2011 | False); |
| 2012 | |
| 2013 | /* Draw the handle itself. */ |
| 2014 | XFillRectangle (x_current_display, w, gc, |
| 2015 | |
| 2016 | /* x, y, width, height */ |
| 2017 | VERTICAL_SCROLL_BAR_LEFT_BORDER, |
| 2018 | VERTICAL_SCROLL_BAR_TOP_BORDER + start, |
| 2019 | inside_width, end - start); |
| 2020 | |
| 2021 | |
| 2022 | /* Draw the empty space below the handle. Note that we can't |
| 2023 | clear zero-height areas; that means "clear to end of window." */ |
| 2024 | if (end < inside_height) |
| 2025 | XClearArea (x_current_display, w, |
| 2026 | |
| 2027 | /* x, y, width, height, and exposures. */ |
| 2028 | VERTICAL_SCROLL_BAR_LEFT_BORDER, |
| 2029 | VERTICAL_SCROLL_BAR_TOP_BORDER + end, |
| 2030 | inside_width, inside_height - end, |
| 2031 | False); |
| 2032 | |
| 2033 | } |
| 2034 | |
| 2035 | UNBLOCK_INPUT; |
| 2036 | } |
| 2037 | |
| 2038 | /* Move a scroll bar around on the screen, to accommodate changing |
| 2039 | window configurations. */ |
| 2040 | static void |
| 2041 | x_scroll_bar_move (bar, top, left, width, height) |
| 2042 | struct scroll_bar *bar; |
| 2043 | int top, left, width, height; |
| 2044 | { |
| 2045 | BLOCK_INPUT; |
| 2046 | |
| 2047 | { |
| 2048 | XWindowChanges wc; |
| 2049 | unsigned int mask = 0; |
| 2050 | |
| 2051 | wc.x = left; |
| 2052 | wc.y = top; |
| 2053 | wc.width = width; |
| 2054 | wc.height = height; |
| 2055 | |
| 2056 | if (left != XINT (bar->left)) mask |= CWX; |
| 2057 | if (top != XINT (bar->top)) mask |= CWY; |
| 2058 | if (width != XINT (bar->width)) mask |= CWWidth; |
| 2059 | if (height != XINT (bar->height)) mask |= CWHeight; |
| 2060 | |
| 2061 | if (mask) |
| 2062 | XConfigureWindow (x_current_display, SCROLL_BAR_X_WINDOW (bar), |
| 2063 | mask, &wc); |
| 2064 | } |
| 2065 | |
| 2066 | XSET (bar->left, Lisp_Int, left); |
| 2067 | XSET (bar->top, Lisp_Int, top); |
| 2068 | XSET (bar->width, Lisp_Int, width); |
| 2069 | XSET (bar->height, Lisp_Int, height); |
| 2070 | |
| 2071 | UNBLOCK_INPUT; |
| 2072 | } |
| 2073 | |
| 2074 | /* Destroy the X window for BAR, and set its Emacs window's scroll bar |
| 2075 | to nil. */ |
| 2076 | static void |
| 2077 | x_scroll_bar_remove (bar) |
| 2078 | struct scroll_bar *bar; |
| 2079 | { |
| 2080 | FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); |
| 2081 | |
| 2082 | BLOCK_INPUT; |
| 2083 | |
| 2084 | /* Destroy the window. */ |
| 2085 | XDestroyWindow (x_current_display, SCROLL_BAR_X_WINDOW (bar)); |
| 2086 | |
| 2087 | /* Disassociate this scroll bar from its window. */ |
| 2088 | XWINDOW (bar->window)->vertical_scroll_bar = Qnil; |
| 2089 | |
| 2090 | UNBLOCK_INPUT; |
| 2091 | } |
| 2092 | |
| 2093 | /* Set the handle of the vertical scroll bar for WINDOW to indicate |
| 2094 | that we are displaying PORTION characters out of a total of WHOLE |
| 2095 | characters, starting at POSITION. If WINDOW has no scroll bar, |
| 2096 | create one. */ |
| 2097 | static void |
| 2098 | XTset_vertical_scroll_bar (window, portion, whole, position) |
| 2099 | struct window *window; |
| 2100 | int portion, whole, position; |
| 2101 | { |
| 2102 | FRAME_PTR f = XFRAME (WINDOW_FRAME (window)); |
| 2103 | int top = XINT (window->top); |
| 2104 | int left = WINDOW_VERTICAL_SCROLL_BAR_COLUMN (window); |
| 2105 | int height = WINDOW_VERTICAL_SCROLL_BAR_HEIGHT (window); |
| 2106 | |
| 2107 | /* Where should this scroll bar be, pixelwise? */ |
| 2108 | int pixel_top = CHAR_TO_PIXEL_ROW (f, top); |
| 2109 | int pixel_left = CHAR_TO_PIXEL_COL (f, left); |
| 2110 | int pixel_width = VERTICAL_SCROLL_BAR_PIXEL_WIDTH (f); |
| 2111 | int pixel_height = VERTICAL_SCROLL_BAR_PIXEL_HEIGHT (f, height); |
| 2112 | |
| 2113 | struct scroll_bar *bar; |
| 2114 | |
| 2115 | /* Does the scroll bar exist yet? */ |
| 2116 | if (NILP (window->vertical_scroll_bar)) |
| 2117 | bar = x_scroll_bar_create (window, |
| 2118 | pixel_top, pixel_left, |
| 2119 | pixel_width, pixel_height); |
| 2120 | else |
| 2121 | { |
| 2122 | /* It may just need to be moved and resized. */ |
| 2123 | bar = XSCROLL_BAR (window->vertical_scroll_bar); |
| 2124 | x_scroll_bar_move (bar, pixel_top, pixel_left, pixel_width, pixel_height); |
| 2125 | } |
| 2126 | |
| 2127 | /* Set the scroll bar's current state, unless we're currently being |
| 2128 | dragged. */ |
| 2129 | if (NILP (bar->dragging)) |
| 2130 | { |
| 2131 | int top_range = |
| 2132 | VERTICAL_SCROLL_BAR_TOP_RANGE (pixel_height); |
| 2133 | |
| 2134 | if (whole == 0) |
| 2135 | x_scroll_bar_set_handle (bar, 0, top_range, 0); |
| 2136 | else |
| 2137 | { |
| 2138 | int start = ((double) position * top_range) / whole; |
| 2139 | int end = ((double) (position + portion) * top_range) / whole; |
| 2140 | |
| 2141 | x_scroll_bar_set_handle (bar, start, end, 0); |
| 2142 | } |
| 2143 | } |
| 2144 | |
| 2145 | XSET (window->vertical_scroll_bar, Lisp_Vector, bar); |
| 2146 | } |
| 2147 | |
| 2148 | |
| 2149 | /* The following three hooks are used when we're doing a thorough |
| 2150 | redisplay of the frame. We don't explicitly know which scroll bars |
| 2151 | are going to be deleted, because keeping track of when windows go |
| 2152 | away is a real pain - "Can you say set-window-configuration, boys |
| 2153 | and girls?" Instead, we just assert at the beginning of redisplay |
| 2154 | that *all* scroll bars are to be removed, and then save a scroll bar |
| 2155 | from the fiery pit when we actually redisplay its window. */ |
| 2156 | |
| 2157 | /* Arrange for all scroll bars on FRAME to be removed at the next call |
| 2158 | to `*judge_scroll_bars_hook'. A scroll bar may be spared if |
| 2159 | `*redeem_scroll_bar_hook' is applied to its window before the judgement. */ |
| 2160 | static void |
| 2161 | XTcondemn_scroll_bars (frame) |
| 2162 | FRAME_PTR frame; |
| 2163 | { |
| 2164 | /* The condemned list should be empty at this point; if it's not, |
| 2165 | then the rest of Emacs isn't using the condemn/redeem/judge |
| 2166 | protocol correctly. */ |
| 2167 | if (! NILP (FRAME_CONDEMNED_SCROLL_BARS (frame))) |
| 2168 | abort (); |
| 2169 | |
| 2170 | /* Move them all to the "condemned" list. */ |
| 2171 | FRAME_CONDEMNED_SCROLL_BARS (frame) = FRAME_SCROLL_BARS (frame); |
| 2172 | FRAME_SCROLL_BARS (frame) = Qnil; |
| 2173 | } |
| 2174 | |
| 2175 | /* Unmark WINDOW's scroll bar for deletion in this judgement cycle. |
| 2176 | Note that WINDOW isn't necessarily condemned at all. */ |
| 2177 | static void |
| 2178 | XTredeem_scroll_bar (window) |
| 2179 | struct window *window; |
| 2180 | { |
| 2181 | struct scroll_bar *bar; |
| 2182 | |
| 2183 | /* We can't redeem this window's scroll bar if it doesn't have one. */ |
| 2184 | if (NILP (window->vertical_scroll_bar)) |
| 2185 | abort (); |
| 2186 | |
| 2187 | bar = XSCROLL_BAR (window->vertical_scroll_bar); |
| 2188 | |
| 2189 | /* Unlink it from the condemned list. */ |
| 2190 | { |
| 2191 | FRAME_PTR f = XFRAME (WINDOW_FRAME (window)); |
| 2192 | |
| 2193 | if (NILP (bar->prev)) |
| 2194 | { |
| 2195 | /* If the prev pointer is nil, it must be the first in one of |
| 2196 | the lists. */ |
| 2197 | if (EQ (FRAME_SCROLL_BARS (f), window->vertical_scroll_bar)) |
| 2198 | /* It's not condemned. Everything's fine. */ |
| 2199 | return; |
| 2200 | else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f), |
| 2201 | window->vertical_scroll_bar)) |
| 2202 | FRAME_CONDEMNED_SCROLL_BARS (f) = bar->next; |
| 2203 | else |
| 2204 | /* If its prev pointer is nil, it must be at the front of |
| 2205 | one or the other! */ |
| 2206 | abort (); |
| 2207 | } |
| 2208 | else |
| 2209 | XSCROLL_BAR (bar->prev)->next = bar->next; |
| 2210 | |
| 2211 | if (! NILP (bar->next)) |
| 2212 | XSCROLL_BAR (bar->next)->prev = bar->prev; |
| 2213 | |
| 2214 | bar->next = FRAME_SCROLL_BARS (f); |
| 2215 | bar->prev = Qnil; |
| 2216 | XSET (FRAME_SCROLL_BARS (f), Lisp_Vector, bar); |
| 2217 | if (! NILP (bar->next)) |
| 2218 | XSET (XSCROLL_BAR (bar->next)->prev, Lisp_Vector, bar); |
| 2219 | } |
| 2220 | } |
| 2221 | |
| 2222 | /* Remove all scroll bars on FRAME that haven't been saved since the |
| 2223 | last call to `*condemn_scroll_bars_hook'. */ |
| 2224 | static void |
| 2225 | XTjudge_scroll_bars (f) |
| 2226 | FRAME_PTR f; |
| 2227 | { |
| 2228 | Lisp_Object bar, next; |
| 2229 | |
| 2230 | bar = FRAME_CONDEMNED_SCROLL_BARS (f); |
| 2231 | |
| 2232 | /* Clear out the condemned list now so we won't try to process any |
| 2233 | more events on the hapless scroll bars. */ |
| 2234 | FRAME_CONDEMNED_SCROLL_BARS (f) = Qnil; |
| 2235 | |
| 2236 | for (; ! NILP (bar); bar = next) |
| 2237 | { |
| 2238 | struct scroll_bar *b = XSCROLL_BAR (bar); |
| 2239 | |
| 2240 | x_scroll_bar_remove (b); |
| 2241 | |
| 2242 | next = b->next; |
| 2243 | b->next = b->prev = Qnil; |
| 2244 | } |
| 2245 | |
| 2246 | /* Now there should be no references to the condemned scroll bars, |
| 2247 | and they should get garbage-collected. */ |
| 2248 | } |
| 2249 | |
| 2250 | |
| 2251 | /* Handle an Expose or GraphicsExpose event on a scroll bar. |
| 2252 | |
| 2253 | This may be called from a signal handler, so we have to ignore GC |
| 2254 | mark bits. */ |
| 2255 | static void |
| 2256 | x_scroll_bar_expose (bar, event) |
| 2257 | struct scroll_bar *bar; |
| 2258 | XEvent *event; |
| 2259 | { |
| 2260 | Window w = SCROLL_BAR_X_WINDOW (bar); |
| 2261 | GC gc = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)))->display.x->normal_gc; |
| 2262 | |
| 2263 | BLOCK_INPUT; |
| 2264 | |
| 2265 | x_scroll_bar_set_handle (bar, XINT (bar->start), XINT (bar->end), 1); |
| 2266 | |
| 2267 | /* Draw a one-pixel border just inside the edges of the scroll bar. */ |
| 2268 | XDrawRectangle (x_current_display, w, gc, |
| 2269 | |
| 2270 | /* x, y, width, height */ |
| 2271 | 0, 0, XINT (bar->width) - 1, XINT (bar->height) - 1); |
| 2272 | |
| 2273 | /* Draw another line to make the extra-thick border on the right. */ |
| 2274 | XFillRectangle (x_current_display, w, gc, |
| 2275 | |
| 2276 | /* x, y, width, height */ |
| 2277 | XINT (bar->width) - 2, 1, 1, XINT (bar->height) - 2); |
| 2278 | |
| 2279 | UNBLOCK_INPUT; |
| 2280 | } |
| 2281 | |
| 2282 | /* Handle a mouse click on the scroll bar BAR. If *EMACS_EVENT's kind |
| 2283 | is set to something other than no_event, it is enqueued. |
| 2284 | |
| 2285 | This may be called from a signal handler, so we have to ignore GC |
| 2286 | mark bits. */ |
| 2287 | static void |
| 2288 | x_scroll_bar_handle_click (bar, event, emacs_event) |
| 2289 | struct scroll_bar *bar; |
| 2290 | XEvent *event; |
| 2291 | struct input_event *emacs_event; |
| 2292 | { |
| 2293 | if (XGCTYPE (bar->window) != Lisp_Window) |
| 2294 | abort (); |
| 2295 | |
| 2296 | emacs_event->kind = scroll_bar_click; |
| 2297 | XSET (emacs_event->code, Lisp_Int, event->xbutton.button - Button1); |
| 2298 | emacs_event->modifiers = |
| 2299 | (x_x_to_emacs_modifiers (event->xbutton.state) |
| 2300 | | (event->type == ButtonRelease |
| 2301 | ? up_modifier |
| 2302 | : down_modifier)); |
| 2303 | emacs_event->frame_or_window = bar->window; |
| 2304 | emacs_event->timestamp = event->xbutton.time; |
| 2305 | { |
| 2306 | int internal_height = |
| 2307 | VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (XINT (bar->height)); |
| 2308 | int top_range = |
| 2309 | VERTICAL_SCROLL_BAR_TOP_RANGE (XINT (bar->height)); |
| 2310 | int y = event->xbutton.y - VERTICAL_SCROLL_BAR_TOP_BORDER; |
| 2311 | |
| 2312 | if (y < 0) y = 0; |
| 2313 | if (y > top_range) y = top_range; |
| 2314 | |
| 2315 | if (y < XINT (bar->start)) |
| 2316 | emacs_event->part = scroll_bar_above_handle; |
| 2317 | else if (y < XINT (bar->end) + VERTICAL_SCROLL_BAR_MIN_HANDLE) |
| 2318 | emacs_event->part = scroll_bar_handle; |
| 2319 | else |
| 2320 | emacs_event->part = scroll_bar_below_handle; |
| 2321 | |
| 2322 | /* Just because the user has clicked on the handle doesn't mean |
| 2323 | they want to drag it. Lisp code needs to be able to decide |
| 2324 | whether or not we're dragging. */ |
| 2325 | #if 0 |
| 2326 | /* If the user has just clicked on the handle, record where they're |
| 2327 | holding it. */ |
| 2328 | if (event->type == ButtonPress |
| 2329 | && emacs_event->part == scroll_bar_handle) |
| 2330 | XSET (bar->dragging, Lisp_Int, y - XINT (bar->start)); |
| 2331 | #endif |
| 2332 | |
| 2333 | /* If the user has released the handle, set it to its final position. */ |
| 2334 | if (event->type == ButtonRelease |
| 2335 | && ! NILP (bar->dragging)) |
| 2336 | { |
| 2337 | int new_start = y - XINT (bar->dragging); |
| 2338 | int new_end = new_start + (XINT (bar->end) - XINT (bar->start)); |
| 2339 | |
| 2340 | x_scroll_bar_set_handle (bar, new_start, new_end, 0); |
| 2341 | bar->dragging = Qnil; |
| 2342 | } |
| 2343 | |
| 2344 | /* Same deal here as the other #if 0. */ |
| 2345 | #if 0 |
| 2346 | /* Clicks on the handle are always reported as occurring at the top of |
| 2347 | the handle. */ |
| 2348 | if (emacs_event->part == scroll_bar_handle) |
| 2349 | emacs_event->x = bar->start; |
| 2350 | else |
| 2351 | XSET (emacs_event->x, Lisp_Int, y); |
| 2352 | #else |
| 2353 | XSET (emacs_event->x, Lisp_Int, y); |
| 2354 | #endif |
| 2355 | |
| 2356 | XSET (emacs_event->y, Lisp_Int, top_range); |
| 2357 | } |
| 2358 | } |
| 2359 | |
| 2360 | /* Handle some mouse motion while someone is dragging the scroll bar. |
| 2361 | |
| 2362 | This may be called from a signal handler, so we have to ignore GC |
| 2363 | mark bits. */ |
| 2364 | static void |
| 2365 | x_scroll_bar_note_movement (bar, event) |
| 2366 | struct scroll_bar *bar; |
| 2367 | XEvent *event; |
| 2368 | { |
| 2369 | last_mouse_movement_time = event->xmotion.time; |
| 2370 | |
| 2371 | mouse_moved = 1; |
| 2372 | XSET (last_mouse_scroll_bar, Lisp_Vector, bar); |
| 2373 | |
| 2374 | /* If we're dragging the bar, display it. */ |
| 2375 | if (! GC_NILP (bar->dragging)) |
| 2376 | { |
| 2377 | /* Where should the handle be now? */ |
| 2378 | int new_start = event->xmotion.y - XINT (bar->dragging); |
| 2379 | |
| 2380 | if (new_start != XINT (bar->start)) |
| 2381 | { |
| 2382 | int new_end = new_start + (XINT (bar->end) - XINT (bar->start)); |
| 2383 | |
| 2384 | x_scroll_bar_set_handle (bar, new_start, new_end, 0); |
| 2385 | } |
| 2386 | } |
| 2387 | |
| 2388 | /* Call XQueryPointer so we'll get an event the next time the mouse |
| 2389 | moves and we can see *still* on the same position. */ |
| 2390 | { |
| 2391 | int dummy; |
| 2392 | |
| 2393 | XQueryPointer (event->xmotion.display, event->xmotion.window, |
| 2394 | (Window *) &dummy, (Window *) &dummy, |
| 2395 | &dummy, &dummy, &dummy, &dummy, |
| 2396 | (unsigned int *) &dummy); |
| 2397 | } |
| 2398 | } |
| 2399 | |
| 2400 | /* Return information to the user about the current position of the mouse |
| 2401 | on the scroll bar. */ |
| 2402 | static void |
| 2403 | x_scroll_bar_report_motion (f, bar_window, part, x, y, time) |
| 2404 | FRAME_PTR *f; |
| 2405 | Lisp_Object *bar_window; |
| 2406 | enum scroll_bar_part *part; |
| 2407 | Lisp_Object *x, *y; |
| 2408 | unsigned long *time; |
| 2409 | { |
| 2410 | struct scroll_bar *bar = XSCROLL_BAR (last_mouse_scroll_bar); |
| 2411 | int win_x, win_y; |
| 2412 | Window dummy_window; |
| 2413 | int dummy_coord; |
| 2414 | unsigned int dummy_mask; |
| 2415 | |
| 2416 | BLOCK_INPUT; |
| 2417 | |
| 2418 | /* Get the mouse's position relative to the scroll bar window, and |
| 2419 | report that. */ |
| 2420 | if (! XQueryPointer (x_current_display, |
| 2421 | SCROLL_BAR_X_WINDOW (bar), |
| 2422 | |
| 2423 | /* Root, child, root x and root y. */ |
| 2424 | &dummy_window, &dummy_window, |
| 2425 | &dummy_coord, &dummy_coord, |
| 2426 | |
| 2427 | /* Position relative to scroll bar. */ |
| 2428 | &win_x, &win_y, |
| 2429 | |
| 2430 | /* Mouse buttons and modifier keys. */ |
| 2431 | &dummy_mask)) |
| 2432 | *f = 0; |
| 2433 | else |
| 2434 | { |
| 2435 | int inside_height |
| 2436 | = VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (XINT (bar->height)); |
| 2437 | int top_range |
| 2438 | = VERTICAL_SCROLL_BAR_TOP_RANGE (XINT (bar->height)); |
| 2439 | |
| 2440 | win_y -= VERTICAL_SCROLL_BAR_TOP_BORDER; |
| 2441 | |
| 2442 | if (! NILP (bar->dragging)) |
| 2443 | win_y -= XINT (bar->dragging); |
| 2444 | |
| 2445 | if (win_y < 0) |
| 2446 | win_y = 0; |
| 2447 | if (win_y > top_range) |
| 2448 | win_y = top_range; |
| 2449 | |
| 2450 | *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); |
| 2451 | *bar_window = bar->window; |
| 2452 | |
| 2453 | if (! NILP (bar->dragging)) |
| 2454 | *part = scroll_bar_handle; |
| 2455 | else if (win_y < XINT (bar->start)) |
| 2456 | *part = scroll_bar_above_handle; |
| 2457 | else if (win_y < XINT (bar->end) + VERTICAL_SCROLL_BAR_MIN_HANDLE) |
| 2458 | *part = scroll_bar_handle; |
| 2459 | else |
| 2460 | *part = scroll_bar_below_handle; |
| 2461 | |
| 2462 | XSET (*x, Lisp_Int, win_y); |
| 2463 | XSET (*y, Lisp_Int, top_range); |
| 2464 | |
| 2465 | mouse_moved = 0; |
| 2466 | last_mouse_scroll_bar = Qnil; |
| 2467 | } |
| 2468 | |
| 2469 | *time = last_mouse_movement_time; |
| 2470 | |
| 2471 | UNBLOCK_INPUT; |
| 2472 | } |
| 2473 | |
| 2474 | |
| 2475 | /* The screen has been cleared so we may have changed foreground or |
| 2476 | background colors, and the scroll bars may need to be redrawn. |
| 2477 | Clear out the scroll bars, and ask for expose events, so we can |
| 2478 | redraw them. */ |
| 2479 | |
| 2480 | x_scroll_bar_clear (f) |
| 2481 | FRAME_PTR f; |
| 2482 | { |
| 2483 | Lisp_Object bar; |
| 2484 | |
| 2485 | for (bar = FRAME_SCROLL_BARS (f); |
| 2486 | XTYPE (bar) == Lisp_Vector; |
| 2487 | bar = XSCROLL_BAR (bar)->next) |
| 2488 | XClearArea (x_current_display, SCROLL_BAR_X_WINDOW (XSCROLL_BAR (bar)), |
| 2489 | 0, 0, 0, 0, True); |
| 2490 | } |
| 2491 | |
| 2492 | |
| 2493 | \f |
| 2494 | /* The main X event-reading loop - XTread_socket. */ |
| 2495 | |
| 2496 | /* Timestamp of enter window event. This is only used by XTread_socket, |
| 2497 | but we have to put it out here, since static variables within functions |
| 2498 | sometimes don't work. */ |
| 2499 | static Time enter_timestamp; |
| 2500 | |
| 2501 | /* This holds the state XLookupString needs to implement dead keys |
| 2502 | and other tricks known as "compose processing". _X Window System_ |
| 2503 | says that a portable program can't use this, but Stephen Gildea assures |
| 2504 | me that letting the compiler initialize it to zeros will work okay. |
| 2505 | |
| 2506 | This must be defined outside of XTread_socket, for the same reasons |
| 2507 | given for enter_timestamp, above. */ |
| 2508 | static XComposeStatus compose_status; |
| 2509 | |
| 2510 | /* Communication with window managers. */ |
| 2511 | Atom Xatom_wm_protocols; |
| 2512 | |
| 2513 | /* Kinds of protocol things we may receive. */ |
| 2514 | Atom Xatom_wm_take_focus; |
| 2515 | Atom Xatom_wm_save_yourself; |
| 2516 | Atom Xatom_wm_delete_window; |
| 2517 | |
| 2518 | /* Other WM communication */ |
| 2519 | Atom Xatom_wm_configure_denied; /* When our config request is denied */ |
| 2520 | Atom Xatom_wm_window_moved; /* When the WM moves us. */ |
| 2521 | |
| 2522 | /* Window manager communication. */ |
| 2523 | Atom Xatom_wm_change_state; |
| 2524 | |
| 2525 | /* Record the last 100 characters stored |
| 2526 | to help debug the loss-of-chars-during-GC problem. */ |
| 2527 | int temp_index; |
| 2528 | short temp_buffer[100]; |
| 2529 | |
| 2530 | /* Read events coming from the X server. |
| 2531 | This routine is called by the SIGIO handler. |
| 2532 | We return as soon as there are no more events to be read. |
| 2533 | |
| 2534 | Events representing keys are stored in buffer BUFP, |
| 2535 | which can hold up to NUMCHARS characters. |
| 2536 | We return the number of characters stored into the buffer, |
| 2537 | thus pretending to be `read'. |
| 2538 | |
| 2539 | WAITP is nonzero if we should block until input arrives. |
| 2540 | EXPECTED is nonzero if the caller knows input is available. */ |
| 2541 | |
| 2542 | int |
| 2543 | XTread_socket (sd, bufp, numchars, waitp, expected) |
| 2544 | register int sd; |
| 2545 | register struct input_event *bufp; |
| 2546 | register int numchars; |
| 2547 | int waitp; |
| 2548 | int expected; |
| 2549 | { |
| 2550 | int count = 0; |
| 2551 | int nbytes = 0; |
| 2552 | int mask; |
| 2553 | int items_pending; /* How many items are in the X queue. */ |
| 2554 | XEvent event; |
| 2555 | struct frame *f; |
| 2556 | int event_found; |
| 2557 | int prefix; |
| 2558 | Lisp_Object part; |
| 2559 | |
| 2560 | if (interrupt_input_blocked) |
| 2561 | { |
| 2562 | interrupt_input_pending = 1; |
| 2563 | return -1; |
| 2564 | } |
| 2565 | |
| 2566 | interrupt_input_pending = 0; |
| 2567 | BLOCK_INPUT; |
| 2568 | |
| 2569 | if (numchars <= 0) |
| 2570 | abort (); /* Don't think this happens. */ |
| 2571 | |
| 2572 | #ifdef FIOSNBIO |
| 2573 | /* If available, Xlib uses FIOSNBIO to make the socket |
| 2574 | non-blocking, and then looks for EWOULDBLOCK. If O_NDELAY is set, |
| 2575 | FIOSNBIO is ignored, and instead of signalling EWOULDBLOCK, |
| 2576 | a read returns 0, which Xlib interprets as equivalent to EPIPE. */ |
| 2577 | fcntl (fileno (stdin), F_SETFL, 0); |
| 2578 | #endif /* ! defined (FIOSNBIO) */ |
| 2579 | |
| 2580 | #ifndef SIGIO |
| 2581 | #ifndef HAVE_SELECT |
| 2582 | if (! (fcntl (fileno (stdin), F_GETFL, 0) & O_NDELAY)) |
| 2583 | { |
| 2584 | extern int read_alarm_should_throw; |
| 2585 | read_alarm_should_throw = 1; |
| 2586 | XPeekEvent (XDISPLAY &event); |
| 2587 | read_alarm_should_throw = 0; |
| 2588 | } |
| 2589 | #endif /* HAVE_SELECT */ |
| 2590 | #endif /* SIGIO */ |
| 2591 | |
| 2592 | while (XStuffPending () != 0) |
| 2593 | { |
| 2594 | XNextEvent (XDISPLAY &event); |
| 2595 | event_found = 1; |
| 2596 | |
| 2597 | switch (event.type) |
| 2598 | { |
| 2599 | #ifdef HAVE_X11 |
| 2600 | case ClientMessage: |
| 2601 | { |
| 2602 | if (event.xclient.message_type == Xatom_wm_protocols |
| 2603 | && event.xclient.format == 32) |
| 2604 | { |
| 2605 | if (event.xclient.data.l[0] == Xatom_wm_take_focus) |
| 2606 | { |
| 2607 | f = x_window_to_frame (event.xclient.window); |
| 2608 | if (f) |
| 2609 | x_focus_on_frame (f); |
| 2610 | /* Not certain about handling scroll bars here */ |
| 2611 | } |
| 2612 | else if (event.xclient.data.l[0] == Xatom_wm_save_yourself) |
| 2613 | { |
| 2614 | /* Save state modify the WM_COMMAND property to |
| 2615 | something which can reinstate us. This notifies |
| 2616 | the session manager, who's looking for such a |
| 2617 | PropertyNotify. Can restart processing when |
| 2618 | a keyboard or mouse event arrives. */ |
| 2619 | if (numchars > 0) |
| 2620 | { |
| 2621 | } |
| 2622 | } |
| 2623 | else if (event.xclient.data.l[0] == Xatom_wm_delete_window) |
| 2624 | { |
| 2625 | struct frame *f = x_window_to_frame (event.xclient.window); |
| 2626 | |
| 2627 | if (f) |
| 2628 | if (numchars > 0) |
| 2629 | { |
| 2630 | } |
| 2631 | } |
| 2632 | } |
| 2633 | else if (event.xclient.message_type == Xatom_wm_configure_denied) |
| 2634 | { |
| 2635 | } |
| 2636 | else if (event.xclient.message_type == Xatom_wm_window_moved) |
| 2637 | { |
| 2638 | int new_x, new_y; |
| 2639 | |
| 2640 | new_x = event.xclient.data.s[0]; |
| 2641 | new_y = event.xclient.data.s[1]; |
| 2642 | } |
| 2643 | } |
| 2644 | break; |
| 2645 | |
| 2646 | #ifdef NEW_SELECTIONS |
| 2647 | case SelectionNotify: |
| 2648 | x_handle_selection_notify (&event); |
| 2649 | break; |
| 2650 | #endif |
| 2651 | |
| 2652 | case SelectionClear: /* Someone has grabbed ownership. */ |
| 2653 | #ifdef NEW_SELECTIONS |
| 2654 | { |
| 2655 | XSelectionClearEvent *eventp = (XSelectionClearEvent *) &event; |
| 2656 | |
| 2657 | if (numchars == 0) |
| 2658 | abort (); |
| 2659 | |
| 2660 | bufp->kind = selection_clear_event; |
| 2661 | SELECTION_EVENT_DISPLAY (bufp) = eventp->display; |
| 2662 | SELECTION_EVENT_SELECTION (bufp) = eventp->selection; |
| 2663 | SELECTION_EVENT_TIME (bufp) = eventp->time; |
| 2664 | bufp++; |
| 2665 | |
| 2666 | count += 1; |
| 2667 | numchars -= 1; |
| 2668 | } |
| 2669 | #else |
| 2670 | x_disown_selection (event.xselectionclear.window, |
| 2671 | event.xselectionclear.selection, |
| 2672 | event.xselectionclear.time); |
| 2673 | #endif |
| 2674 | break; |
| 2675 | |
| 2676 | case SelectionRequest: /* Someone wants our selection. */ |
| 2677 | #ifdef NEW_SELECTIONS |
| 2678 | { |
| 2679 | XSelectionRequestEvent *eventp = (XSelectionRequestEvent *) &event; |
| 2680 | |
| 2681 | if (numchars == 0) |
| 2682 | abort (); |
| 2683 | |
| 2684 | bufp->kind = selection_request_event; |
| 2685 | SELECTION_EVENT_DISPLAY (bufp) = eventp->display; |
| 2686 | SELECTION_EVENT_REQUESTOR (bufp) = eventp->requestor; |
| 2687 | SELECTION_EVENT_SELECTION (bufp) = eventp->selection; |
| 2688 | SELECTION_EVENT_TARGET (bufp) = eventp->target; |
| 2689 | SELECTION_EVENT_PROPERTY (bufp) = eventp->property; |
| 2690 | SELECTION_EVENT_TIME (bufp) = eventp->time; |
| 2691 | bufp++; |
| 2692 | |
| 2693 | count += 1; |
| 2694 | numchars -= 1; |
| 2695 | } |
| 2696 | #else |
| 2697 | x_answer_selection_request (event); |
| 2698 | #endif |
| 2699 | break; |
| 2700 | |
| 2701 | case PropertyNotify: |
| 2702 | #ifdef NEW_SELECTIONS |
| 2703 | x_handle_property_notify (&event); |
| 2704 | #else |
| 2705 | /* If we're being told about a root window property, then it's |
| 2706 | a cut buffer change. */ |
| 2707 | if (event.xproperty.window == ROOT_WINDOW) |
| 2708 | x_invalidate_cut_buffer_cache (&event.xproperty); |
| 2709 | |
| 2710 | /* Otherwise, we're probably handling an incremental |
| 2711 | selection transmission. */ |
| 2712 | else |
| 2713 | { |
| 2714 | /* If we were to do this synchronously, there'd be no worry |
| 2715 | about re-selecting. */ |
| 2716 | x_send_incremental (event); |
| 2717 | } |
| 2718 | #endif |
| 2719 | break; |
| 2720 | |
| 2721 | case ReparentNotify: |
| 2722 | f = x_window_to_frame (event.xreparent.window); |
| 2723 | if (f) |
| 2724 | f->display.x->parent_desc = event.xreparent.parent; |
| 2725 | break; |
| 2726 | |
| 2727 | case Expose: |
| 2728 | f = x_window_to_frame (event.xexpose.window); |
| 2729 | if (f) |
| 2730 | { |
| 2731 | if (f->async_visible == 0) |
| 2732 | { |
| 2733 | f->async_visible = 1; |
| 2734 | f->async_iconified = 0; |
| 2735 | SET_FRAME_GARBAGED (f); |
| 2736 | } |
| 2737 | else |
| 2738 | { |
| 2739 | dumprectangle (x_window_to_frame (event.xexpose.window), |
| 2740 | event.xexpose.x, event.xexpose.y, |
| 2741 | event.xexpose.width, event.xexpose.height); |
| 2742 | } |
| 2743 | } |
| 2744 | else |
| 2745 | { |
| 2746 | struct scroll_bar *bar |
| 2747 | = x_window_to_scroll_bar (event.xexpose.window); |
| 2748 | |
| 2749 | if (bar) |
| 2750 | x_scroll_bar_expose (bar, &event); |
| 2751 | } |
| 2752 | break; |
| 2753 | |
| 2754 | case GraphicsExpose: /* This occurs when an XCopyArea's |
| 2755 | source area was obscured or not |
| 2756 | available.*/ |
| 2757 | f = x_window_to_frame (event.xgraphicsexpose.drawable); |
| 2758 | if (f) |
| 2759 | { |
| 2760 | dumprectangle (f, |
| 2761 | event.xgraphicsexpose.x, event.xgraphicsexpose.y, |
| 2762 | event.xgraphicsexpose.width, |
| 2763 | event.xgraphicsexpose.height); |
| 2764 | } |
| 2765 | break; |
| 2766 | |
| 2767 | case NoExpose: /* This occurs when an XCopyArea's |
| 2768 | source area was completely |
| 2769 | available */ |
| 2770 | break; |
| 2771 | #else /* ! defined (HAVE_X11) */ |
| 2772 | case ExposeWindow: |
| 2773 | if (event.subwindow != 0) |
| 2774 | break; /* duplicate event */ |
| 2775 | f = x_window_to_frame (event.window); |
| 2776 | if (event.window == f->display.x->icon_desc) |
| 2777 | { |
| 2778 | refreshicon (f); |
| 2779 | f->async_iconified = 1; |
| 2780 | } |
| 2781 | if (event.window == FRAME_X_WINDOW (f)) |
| 2782 | { |
| 2783 | /* Say must check all windows' needs_exposure flags. */ |
| 2784 | expose_all_windows = 1; |
| 2785 | f->display.x->needs_exposure = 1; |
| 2786 | f->async_visible = 1; |
| 2787 | } |
| 2788 | break; |
| 2789 | |
| 2790 | case ExposeRegion: |
| 2791 | if (event.subwindow != 0) |
| 2792 | break; /* duplicate event */ |
| 2793 | f = x_window_to_frame (event.window); |
| 2794 | if (event.window == f->display.x->icon_desc) |
| 2795 | { |
| 2796 | refreshicon (f); |
| 2797 | break; |
| 2798 | } |
| 2799 | /* If window already needs full redraw, ignore this rectangle. */ |
| 2800 | if (expose_all_windows && f->display.x->needs_exposure) |
| 2801 | break; |
| 2802 | /* Put the event on the queue of rectangles to redraw. */ |
| 2803 | if (enqueue_event (&event, &x_expose_queue)) |
| 2804 | /* If it is full, we can't record the rectangle, |
| 2805 | so redraw this entire window. */ |
| 2806 | { |
| 2807 | /* Say must check all windows' needs_exposure flags. */ |
| 2808 | expose_all_windows = 1; |
| 2809 | f->display.x->needs_exposure = 1; |
| 2810 | } |
| 2811 | break; |
| 2812 | |
| 2813 | case ExposeCopy: |
| 2814 | /* This should happen only when we are expecting it, |
| 2815 | in x_read_exposes. */ |
| 2816 | abort (); |
| 2817 | #endif /* ! defined (HAVE_X11) */ |
| 2818 | |
| 2819 | #ifdef HAVE_X11 |
| 2820 | case UnmapNotify: |
| 2821 | f = x_window_to_frame (event.xunmap.window); |
| 2822 | if (f) /* F may no longer exist if |
| 2823 | the frame was deleted. */ |
| 2824 | { |
| 2825 | /* While a frame is unmapped, display generation is |
| 2826 | disabled; you don't want to spend time updating a |
| 2827 | display that won't ever be seen. */ |
| 2828 | f->async_visible = 0; |
| 2829 | /* The window manager never makes a window invisible |
| 2830 | ("withdrawn"); all it does is switch between visible |
| 2831 | and iconified. Frames get into the invisible state |
| 2832 | only through x_make_frame_invisible. |
| 2833 | if (FRAME_VISIBLE_P (f) || FRAME_ICONIFIED_P (f)) |
| 2834 | f->async_iconified = 1; |
| 2835 | } |
| 2836 | break; |
| 2837 | |
| 2838 | case MapNotify: |
| 2839 | f = x_window_to_frame (event.xmap.window); |
| 2840 | if (f) |
| 2841 | { |
| 2842 | f->async_visible = 1; |
| 2843 | f->async_iconified = 0; |
| 2844 | |
| 2845 | /* wait_reading_process_input will notice this and update |
| 2846 | the frame's display structures. */ |
| 2847 | SET_FRAME_GARBAGED (f); |
| 2848 | } |
| 2849 | break; |
| 2850 | |
| 2851 | /* Turn off processing if we become fully obscured. */ |
| 2852 | case VisibilityNotify: |
| 2853 | break; |
| 2854 | |
| 2855 | #else /* ! defined (HAVE_X11) */ |
| 2856 | case UnmapWindow: |
| 2857 | f = x_window_to_frame (event.window); |
| 2858 | if (event.window == f->display.x->icon_desc) |
| 2859 | f->async_iconified = 0; |
| 2860 | if (event.window == FRAME_X_WINDOW (f)) |
| 2861 | f->async_visible = 0; |
| 2862 | break; |
| 2863 | #endif /* ! defined (HAVE_X11) */ |
| 2864 | |
| 2865 | #ifdef HAVE_X11 |
| 2866 | case KeyPress: |
| 2867 | f = x_window_to_frame (event.xkey.window); |
| 2868 | |
| 2869 | if (f != 0) |
| 2870 | { |
| 2871 | KeySym keysym, orig_keysym; |
| 2872 | char copy_buffer[80]; |
| 2873 | int modifiers; |
| 2874 | |
| 2875 | event.xkey.state |
| 2876 | |= x_emacs_to_x_modifiers (extra_keyboard_modifiers); |
| 2877 | modifiers = event.xkey.state; |
| 2878 | |
| 2879 | /* This will have to go some day... */ |
| 2880 | |
| 2881 | /* make_lispy_event turns chars into control chars. |
| 2882 | Don't do it here because XLookupString is too eager. */ |
| 2883 | event.xkey.state &= ~ControlMask; |
| 2884 | nbytes = |
| 2885 | XLookupString (&event.xkey, copy_buffer, 80, &keysym, |
| 2886 | &compose_status); |
| 2887 | |
| 2888 | /* Strip off the vendor-specific keysym bit, and take a shot |
| 2889 | at recognizing the codes. HP servers have extra keysyms |
| 2890 | that fit into the MiscFunctionKey category. */ |
| 2891 | orig_keysym = keysym; |
| 2892 | keysym &= ~(1<<28); |
| 2893 | |
| 2894 | if (numchars > 1) |
| 2895 | { |
| 2896 | if ((keysym >= XK_BackSpace && keysym <= XK_Escape) |
| 2897 | || keysym == XK_Delete |
| 2898 | || IsCursorKey (keysym) /* 0xff50 <= x < 0xff60 */ |
| 2899 | || IsMiscFunctionKey (keysym) /* 0xff60 <= x < VARIES */ |
| 2900 | #ifdef HPUX |
| 2901 | /* This recognizes the "extended function keys". |
| 2902 | It seems there's no cleaner way. |
| 2903 | Test IsModifierKey to avoid handling mode_switch |
| 2904 | incorrectly. */ |
| 2905 | || (!IsModifierKey (orig_keysym) |
| 2906 | && (unsigned) (keysym) >= XK_Select |
| 2907 | && (unsigned)(keysym) < XK_KP_Space) |
| 2908 | #endif |
| 2909 | || IsKeypadKey (keysym) /* 0xff80 <= x < 0xffbe */ |
| 2910 | || IsFunctionKey (keysym) /* 0xffbe <= x < 0xffe1 */ |
| 2911 | || x_is_vendor_fkey (orig_keysym)) /* wherever */ |
| 2912 | { |
| 2913 | if (temp_index == sizeof temp_buffer / sizeof (short)) |
| 2914 | temp_index = 0; |
| 2915 | temp_buffer[temp_index++] = keysym; |
| 2916 | bufp->kind = non_ascii_keystroke; |
| 2917 | XSET (bufp->code, Lisp_Int, (unsigned) keysym - 0xff00); |
| 2918 | XSET (bufp->frame_or_window, Lisp_Frame, f); |
| 2919 | bufp->modifiers = x_x_to_emacs_modifiers (modifiers); |
| 2920 | bufp->timestamp = event.xkey.time; |
| 2921 | bufp++; |
| 2922 | count++; |
| 2923 | numchars--; |
| 2924 | } |
| 2925 | else if (numchars > nbytes) |
| 2926 | { |
| 2927 | register int i; |
| 2928 | |
| 2929 | for (i = 0; i < nbytes; i++) |
| 2930 | { |
| 2931 | if (temp_index == sizeof temp_buffer / sizeof (short)) |
| 2932 | temp_index = 0; |
| 2933 | temp_buffer[temp_index++] = copy_buffer[i]; |
| 2934 | bufp->kind = ascii_keystroke; |
| 2935 | XSET (bufp->code, Lisp_Int, copy_buffer[i]); |
| 2936 | XSET (bufp->frame_or_window, Lisp_Frame, f); |
| 2937 | bufp->modifiers = x_x_to_emacs_modifiers (modifiers); |
| 2938 | bufp->timestamp = event.xkey.time; |
| 2939 | bufp++; |
| 2940 | } |
| 2941 | |
| 2942 | count += nbytes; |
| 2943 | numchars -= nbytes; |
| 2944 | } |
| 2945 | else |
| 2946 | abort (); |
| 2947 | } |
| 2948 | else |
| 2949 | abort (); |
| 2950 | } |
| 2951 | break; |
| 2952 | #else /* ! defined (HAVE_X11) */ |
| 2953 | case KeyPressed: |
| 2954 | { |
| 2955 | register char *where_mapping; |
| 2956 | |
| 2957 | f = x_window_to_frame (event.window); |
| 2958 | /* Ignore keys typed on icon windows. */ |
| 2959 | if (f != 0 && event.window == f->display.x->icon_desc) |
| 2960 | break; |
| 2961 | where_mapping = XLookupMapping (&event, &nbytes); |
| 2962 | /* Nasty fix for arrow keys */ |
| 2963 | if (!nbytes && IsCursorKey (event.detail & 0xff)) |
| 2964 | { |
| 2965 | switch (event.detail & 0xff) |
| 2966 | { |
| 2967 | case KC_CURSOR_LEFT: |
| 2968 | where_mapping = "\002"; |
| 2969 | break; |
| 2970 | case KC_CURSOR_RIGHT: |
| 2971 | where_mapping = "\006"; |
| 2972 | break; |
| 2973 | case KC_CURSOR_UP: |
| 2974 | where_mapping = "\020"; |
| 2975 | break; |
| 2976 | case KC_CURSOR_DOWN: |
| 2977 | where_mapping = "\016"; |
| 2978 | break; |
| 2979 | } |
| 2980 | nbytes = 1; |
| 2981 | } |
| 2982 | if (numchars - nbytes > 0) |
| 2983 | { |
| 2984 | register int i; |
| 2985 | |
| 2986 | for (i = 0; i < nbytes; i++) |
| 2987 | { |
| 2988 | bufp->kind = ascii_keystroke; |
| 2989 | XSET (bufp->code, Lisp_Int, where_mapping[i]); |
| 2990 | XSET (bufp->time, Lisp_Int, event.xkey.time); |
| 2991 | XSET (bufp->frame_or_window, Lisp_Frame, f); |
| 2992 | bufp++; |
| 2993 | } |
| 2994 | count += nbytes; |
| 2995 | numchars -= nbytes; |
| 2996 | } |
| 2997 | } |
| 2998 | break; |
| 2999 | #endif /* ! defined (HAVE_X11) */ |
| 3000 | |
| 3001 | #ifdef HAVE_X11 |
| 3002 | |
| 3003 | /* Here's a possible interpretation of the whole |
| 3004 | FocusIn-EnterNotify FocusOut-LeaveNotify mess. If you get a |
| 3005 | FocusIn event, you have to get a FocusOut event before you |
| 3006 | relinquish the focus. If you haven't received a FocusIn event, |
| 3007 | then a mere LeaveNotify is enough to free you. */ |
| 3008 | |
| 3009 | case EnterNotify: |
| 3010 | f = x_window_to_frame (event.xcrossing.window); |
| 3011 | |
| 3012 | if (event.xcrossing.focus) /* Entered Window */ |
| 3013 | { |
| 3014 | /* Avoid nasty pop/raise loops. */ |
| 3015 | if (f && (!(f->auto_raise) |
| 3016 | || !(f->auto_lower) |
| 3017 | || (event.xcrossing.time - enter_timestamp) > 500)) |
| 3018 | { |
| 3019 | x_new_focus_frame (f); |
| 3020 | enter_timestamp = event.xcrossing.time; |
| 3021 | } |
| 3022 | } |
| 3023 | else if (f == x_focus_frame) |
| 3024 | x_new_focus_frame (0); |
| 3025 | |
| 3026 | break; |
| 3027 | |
| 3028 | case FocusIn: |
| 3029 | f = x_window_to_frame (event.xfocus.window); |
| 3030 | if (event.xfocus.detail != NotifyPointer) |
| 3031 | x_focus_event_frame = f; |
| 3032 | if (f) |
| 3033 | x_new_focus_frame (f); |
| 3034 | break; |
| 3035 | |
| 3036 | |
| 3037 | case LeaveNotify: |
| 3038 | f = x_window_to_frame (event.xcrossing.window); |
| 3039 | |
| 3040 | if (event.xcrossing.focus) |
| 3041 | { |
| 3042 | if (! x_focus_event_frame) |
| 3043 | x_new_focus_frame (0); |
| 3044 | else |
| 3045 | x_new_focus_frame (f); |
| 3046 | } |
| 3047 | else |
| 3048 | { |
| 3049 | if (f == x_focus_event_frame) |
| 3050 | x_focus_event_frame = 0; |
| 3051 | if (f == x_focus_frame) |
| 3052 | x_new_focus_frame (0); |
| 3053 | } |
| 3054 | break; |
| 3055 | |
| 3056 | case FocusOut: |
| 3057 | f = x_window_to_frame (event.xfocus.window); |
| 3058 | if (event.xfocus.detail != NotifyPointer |
| 3059 | && f == x_focus_event_frame) |
| 3060 | x_focus_event_frame = 0; |
| 3061 | if (f && f == x_focus_frame) |
| 3062 | x_new_focus_frame (0); |
| 3063 | break; |
| 3064 | |
| 3065 | #else /* ! defined (HAVE_X11) */ |
| 3066 | |
| 3067 | case EnterWindow: |
| 3068 | if ((event.detail & 0xFF) == 1) |
| 3069 | break; /* Coming from our own subwindow */ |
| 3070 | if (event.subwindow != 0) |
| 3071 | break; /* Entering our own subwindow. */ |
| 3072 | |
| 3073 | { |
| 3074 | f = x_window_to_frame (event.window); |
| 3075 | x_mouse_frame = f; |
| 3076 | |
| 3077 | x_new_focus_frame (f); |
| 3078 | } |
| 3079 | break; |
| 3080 | |
| 3081 | case LeaveWindow: |
| 3082 | if ((event.detail & 0xFF) == 1) |
| 3083 | break; /* Entering our own subwindow */ |
| 3084 | if (event.subwindow != 0) |
| 3085 | break; /* Leaving our own subwindow. */ |
| 3086 | |
| 3087 | x_mouse_frame = 0; |
| 3088 | if (x_focus_frame == 0 |
| 3089 | && x_input_frame != 0 |
| 3090 | && x_input_frame == x_window_to_frame (event.window) |
| 3091 | && event.window == FRAME_X_WINDOW (x_input_frame)) |
| 3092 | { |
| 3093 | f = x_input_frame; |
| 3094 | x_input_frame = 0; |
| 3095 | if (f) |
| 3096 | frame_unhighlight (f); |
| 3097 | } |
| 3098 | break; |
| 3099 | #endif /* ! defined (HAVE_X11) */ |
| 3100 | |
| 3101 | #ifdef HAVE_X11 |
| 3102 | case MotionNotify: |
| 3103 | { |
| 3104 | f = x_window_to_frame (event.xmotion.window); |
| 3105 | if (f) |
| 3106 | note_mouse_movement (f, &event.xmotion); |
| 3107 | else |
| 3108 | { |
| 3109 | struct scroll_bar *bar = |
| 3110 | x_window_to_scroll_bar (event.xmotion.window); |
| 3111 | |
| 3112 | if (bar) |
| 3113 | x_scroll_bar_note_movement (bar, &event); |
| 3114 | } |
| 3115 | } |
| 3116 | break; |
| 3117 | |
| 3118 | case ConfigureNotify: |
| 3119 | f = x_window_to_frame (event.xconfigure.window); |
| 3120 | if (f) |
| 3121 | { |
| 3122 | int rows = PIXEL_TO_CHAR_HEIGHT (f, event.xconfigure.height); |
| 3123 | int columns = PIXEL_TO_CHAR_WIDTH (f, event.xconfigure.width); |
| 3124 | |
| 3125 | /* Even if the number of character rows and columns has |
| 3126 | not changed, the font size may have changed, so we need |
| 3127 | to check the pixel dimensions as well. */ |
| 3128 | if (columns != f->width |
| 3129 | || rows != f->height |
| 3130 | || event.xconfigure.width != f->display.x->pixel_width |
| 3131 | || event.xconfigure.height != f->display.x->pixel_height) |
| 3132 | { |
| 3133 | change_frame_size (f, rows, columns, 0, 1); |
| 3134 | SET_FRAME_GARBAGED (f); |
| 3135 | } |
| 3136 | |
| 3137 | if (! event.xconfigure.send_event) |
| 3138 | { |
| 3139 | Window win, child; |
| 3140 | int win_x, win_y; |
| 3141 | |
| 3142 | /* Coords are relative to the parent. |
| 3143 | Convert them to root-relative. */ |
| 3144 | XTranslateCoordinates (x_current_display, |
| 3145 | |
| 3146 | /* From-window, to-window. */ |
| 3147 | f->display.x->parent_desc, |
| 3148 | ROOT_WINDOW, |
| 3149 | |
| 3150 | /* From-position, to-position. */ |
| 3151 | event.xconfigure.x, |
| 3152 | event.xconfigure.y, |
| 3153 | &win_x, &win_y, |
| 3154 | |
| 3155 | /* Child of win. */ |
| 3156 | &child); |
| 3157 | event.xconfigure.x = win_x; |
| 3158 | event.xconfigure.y = win_y; |
| 3159 | } |
| 3160 | |
| 3161 | f->display.x->pixel_width = event.xconfigure.width; |
| 3162 | f->display.x->pixel_height = event.xconfigure.height; |
| 3163 | f->display.x->left_pos = event.xconfigure.x; |
| 3164 | f->display.x->top_pos = event.xconfigure.y; |
| 3165 | } |
| 3166 | break; |
| 3167 | |
| 3168 | case ButtonPress: |
| 3169 | case ButtonRelease: |
| 3170 | { |
| 3171 | /* If we decide we want to generate an event to be seen |
| 3172 | by the rest of Emacs, we put it here. */ |
| 3173 | struct input_event emacs_event; |
| 3174 | emacs_event.kind = no_event; |
| 3175 | |
| 3176 | f = x_window_to_frame (event.xbutton.window); |
| 3177 | if (f) |
| 3178 | { |
| 3179 | if (!x_focus_frame || (f == x_focus_frame)) |
| 3180 | construct_mouse_click (&emacs_event, |
| 3181 | &event, f); |
| 3182 | } |
| 3183 | else |
| 3184 | { |
| 3185 | struct scroll_bar *bar = |
| 3186 | x_window_to_scroll_bar (event.xbutton.window); |
| 3187 | |
| 3188 | if (bar) |
| 3189 | x_scroll_bar_handle_click (bar, &event, &emacs_event); |
| 3190 | } |
| 3191 | |
| 3192 | if (numchars >= 1 && emacs_event.kind != no_event) |
| 3193 | { |
| 3194 | bcopy (&emacs_event, bufp, sizeof (struct input_event)); |
| 3195 | bufp++; |
| 3196 | count++; |
| 3197 | numchars--; |
| 3198 | } |
| 3199 | } |
| 3200 | break; |
| 3201 | |
| 3202 | #else /* ! defined (HAVE_X11) */ |
| 3203 | case ButtonPressed: |
| 3204 | case ButtonReleased: |
| 3205 | f = x_window_to_frame (event.window); |
| 3206 | if (f) |
| 3207 | { |
| 3208 | if (event.window == f->display.x->icon_desc) |
| 3209 | { |
| 3210 | x_make_frame_visible (f); |
| 3211 | |
| 3212 | if (warp_mouse_on_deiconify) |
| 3213 | XWarpMouse (FRAME_X_WINDOW (f), 10, 10); |
| 3214 | break; |
| 3215 | } |
| 3216 | if (event.window == FRAME_X_WINDOW (f)) |
| 3217 | { |
| 3218 | if (f->auto_raise) |
| 3219 | x_raise_frame (f); |
| 3220 | } |
| 3221 | } |
| 3222 | enqueue_event (&event, &x_mouse_queue); |
| 3223 | if (numchars >= 2) |
| 3224 | { |
| 3225 | bufp->kind = ascii_keystroke; |
| 3226 | bufp->code = (char) 'X' & 037; /* C-x */ |
| 3227 | XSET (bufp->frame_or_window, Lisp_Frame, f); |
| 3228 | XSET (bufp->time, Lisp_Int, event.xkey.time); |
| 3229 | bufp++; |
| 3230 | |
| 3231 | bufp->kind = ascii_keystroke; |
| 3232 | bufp->code = (char) 0; /* C-@ */ |
| 3233 | XSET (bufp->frame_or_window, Lisp_Frame, f); |
| 3234 | XSET (bufp->time, Lisp_Int, event.xkey.time); |
| 3235 | bufp++; |
| 3236 | |
| 3237 | count += 2; |
| 3238 | numchars -= 2; |
| 3239 | } |
| 3240 | break; |
| 3241 | #endif /* ! defined (HAVE_X11) */ |
| 3242 | |
| 3243 | #ifdef HAVE_X11 |
| 3244 | |
| 3245 | case CirculateNotify: |
| 3246 | break; |
| 3247 | case CirculateRequest: |
| 3248 | break; |
| 3249 | |
| 3250 | #endif /* ! defined (HAVE_X11) */ |
| 3251 | |
| 3252 | case MappingNotify: |
| 3253 | /* Someone has changed the keyboard mapping - update the |
| 3254 | local cache. */ |
| 3255 | switch (event.xmapping.request) |
| 3256 | { |
| 3257 | case MappingModifier: |
| 3258 | x_find_modifier_meanings (); |
| 3259 | /* This is meant to fall through. */ |
| 3260 | case MappingKeyboard: |
| 3261 | XRefreshKeyboardMapping (&event.xmapping); |
| 3262 | } |
| 3263 | break; |
| 3264 | |
| 3265 | default: |
| 3266 | break; |
| 3267 | } |
| 3268 | } |
| 3269 | |
| 3270 | #if 0 |
| 3271 | #ifdef HAVE_SELECT |
| 3272 | if (expected && ! event_found) |
| 3273 | { |
| 3274 | /* AOJ 880406: if select returns true but XPending doesn't, it means that |
| 3275 | there is an EOF condition; in other words, that X has died. |
| 3276 | Act as if there had been a hangup. */ |
| 3277 | |
| 3278 | int fd = ConnectionNumber (x_current_display); |
| 3279 | int mask = 1 << fd; |
| 3280 | |
| 3281 | if (0 != select (fd + 1, &mask, (long *) 0, (long *) 0, |
| 3282 | (EMACS_TIME) 0) |
| 3283 | && !XStuffPending ()) |
| 3284 | kill (getpid (), SIGHUP); |
| 3285 | } |
| 3286 | #endif /* ! defined (HAVE_SELECT) */ |
| 3287 | #endif /* ! 0 */ |
| 3288 | |
| 3289 | #ifndef HAVE_X11 |
| 3290 | if (updating_frame == 0) |
| 3291 | x_do_pending_expose (); |
| 3292 | #endif |
| 3293 | |
| 3294 | UNBLOCK_INPUT; |
| 3295 | return count; |
| 3296 | } |
| 3297 | |
| 3298 | #ifndef HAVE_X11 |
| 3299 | /* Read and process only Expose events |
| 3300 | until we get an ExposeCopy event; then return. |
| 3301 | This is used in insert/delete line. |
| 3302 | We assume input is already blocked. */ |
| 3303 | |
| 3304 | static void |
| 3305 | x_read_exposes () |
| 3306 | { |
| 3307 | struct frame *f; |
| 3308 | XKeyPressedEvent event; |
| 3309 | |
| 3310 | while (1) |
| 3311 | { |
| 3312 | /* while there are more events*/ |
| 3313 | XMaskEvent (ExposeWindow | ExposeRegion | ExposeCopy, &event); |
| 3314 | switch (event.type) |
| 3315 | { |
| 3316 | case ExposeWindow: |
| 3317 | if (event.subwindow != 0) |
| 3318 | break; /* duplicate event */ |
| 3319 | f = x_window_to_frame (event.window); |
| 3320 | if (event.window == f->display.x->icon_desc) |
| 3321 | { |
| 3322 | refreshicon (f); |
| 3323 | break; |
| 3324 | } |
| 3325 | if (event.window == FRAME_X_WINDOW (f)) |
| 3326 | { |
| 3327 | expose_all_windows = 1; |
| 3328 | f->display.x->needs_exposure = 1; |
| 3329 | break; |
| 3330 | } |
| 3331 | break; |
| 3332 | |
| 3333 | case ExposeRegion: |
| 3334 | if (event.subwindow != 0) |
| 3335 | break; /* duplicate event */ |
| 3336 | f = x_window_to_frame (event.window); |
| 3337 | if (event.window == f->display.x->icon_desc) |
| 3338 | { |
| 3339 | refreshicon (f); |
| 3340 | break; |
| 3341 | } |
| 3342 | /* If window already needs full redraw, ignore this rectangle. */ |
| 3343 | if (expose_all_windows && f->display.x->needs_exposure) |
| 3344 | break; |
| 3345 | /* Put the event on the queue of rectangles to redraw. */ |
| 3346 | if (enqueue_event (&event, &x_expose_queue)) |
| 3347 | /* If it is full, we can't record the rectangle, |
| 3348 | so redraw this entire window. */ |
| 3349 | { |
| 3350 | /* Say must check all windows' needs_exposure flags. */ |
| 3351 | expose_all_windows = 1; |
| 3352 | f->display.x->needs_exposure = 1; |
| 3353 | } |
| 3354 | break; |
| 3355 | |
| 3356 | case ExposeCopy: |
| 3357 | return; |
| 3358 | } |
| 3359 | } |
| 3360 | } |
| 3361 | #endif /* HAVE_X11 */ |
| 3362 | |
| 3363 | \f |
| 3364 | /* Drawing the cursor. */ |
| 3365 | |
| 3366 | |
| 3367 | /* Draw a hollow box cursor. Don't change the inside of the box. */ |
| 3368 | |
| 3369 | static void |
| 3370 | x_draw_box (f) |
| 3371 | struct frame *f; |
| 3372 | { |
| 3373 | int left = CHAR_TO_PIXEL_COL (f, f->cursor_x); |
| 3374 | int top = CHAR_TO_PIXEL_ROW (f, f->cursor_y); |
| 3375 | int width = FONT_WIDTH (f->display.x->font); |
| 3376 | int height = FONT_HEIGHT (f->display.x->font); |
| 3377 | |
| 3378 | #ifdef HAVE_X11 |
| 3379 | XDrawRectangle (x_current_display, FRAME_X_WINDOW (f), |
| 3380 | f->display.x->cursor_gc, |
| 3381 | left, top, width - 1, height - 1); |
| 3382 | #else /* ! defined (HAVE_X11) */ |
| 3383 | XPixSet (FRAME_X_WINDOW (f), |
| 3384 | left, top, width, 1, |
| 3385 | f->display.x->cursor_pixel); |
| 3386 | |
| 3387 | XPixSet (FRAME_X_WINDOW (f), |
| 3388 | left, top, 1, height, |
| 3389 | f->display.x->cursor_pixel); |
| 3390 | |
| 3391 | XPixSet (FRAME_X_WINDOW (f), |
| 3392 | left+width-1, top, 1, height, |
| 3393 | f->display.x->cursor_pixel); |
| 3394 | |
| 3395 | XPixSet (FRAME_X_WINDOW (f), |
| 3396 | left, top+height-1, width, 1, |
| 3397 | f->display.x->cursor_pixel); |
| 3398 | #endif /* ! defined (HAVE_X11) */ |
| 3399 | } |
| 3400 | |
| 3401 | /* Clear the cursor of frame F to background color, |
| 3402 | and mark the cursor as not shown. |
| 3403 | This is used when the text where the cursor is |
| 3404 | is about to be rewritten. */ |
| 3405 | |
| 3406 | static void |
| 3407 | clear_cursor (f) |
| 3408 | struct frame *f; |
| 3409 | { |
| 3410 | int mask; |
| 3411 | |
| 3412 | if (! FRAME_VISIBLE_P (f) |
| 3413 | || f->phys_cursor_x < 0) |
| 3414 | return; |
| 3415 | |
| 3416 | #ifdef HAVE_X11 |
| 3417 | x_display_cursor (f, 0); |
| 3418 | #else /* ! defined (HAVE_X11) */ |
| 3419 | XPixSet (FRAME_X_WINDOW (f), |
| 3420 | CHAR_TO_PIXEL_COL (f, f->phys_cursor_x), |
| 3421 | CHAR_TO_PIXEL_ROW (f, f->phys_cursor_y), |
| 3422 | FONT_WIDTH (f->display.x->font), FONT_HEIGHT (f->display.x->font), |
| 3423 | f->display.x->background_pixel); |
| 3424 | #endif /* ! defined (HAVE_X11) */ |
| 3425 | f->phys_cursor_x = -1; |
| 3426 | } |
| 3427 | |
| 3428 | /* Redraw the glyph at ROW, COLUMN on frame F, in the style |
| 3429 | HIGHLIGHT. HIGHLIGHT is as defined for dumpglyphs. Return the |
| 3430 | glyph drawn. */ |
| 3431 | |
| 3432 | static void |
| 3433 | x_draw_single_glyph (f, row, column, glyph, highlight) |
| 3434 | struct frame *f; |
| 3435 | int row, column; |
| 3436 | GLYPH glyph; |
| 3437 | int highlight; |
| 3438 | { |
| 3439 | dumpglyphs (f, |
| 3440 | CHAR_TO_PIXEL_COL (f, column), |
| 3441 | CHAR_TO_PIXEL_ROW (f, row), |
| 3442 | &glyph, 1, highlight); |
| 3443 | } |
| 3444 | |
| 3445 | static void |
| 3446 | x_display_bar_cursor (f, on) |
| 3447 | struct frame *f; |
| 3448 | int on; |
| 3449 | { |
| 3450 | struct frame_glyphs *current_glyphs = FRAME_CURRENT_GLYPHS (f); |
| 3451 | |
| 3452 | /* This is pointless on invisible frames, and dangerous on garbaged |
| 3453 | frames; in the latter case, the frame may be in the midst of |
| 3454 | changing its size, and curs_x and curs_y may be off the frame. */ |
| 3455 | if (! FRAME_VISIBLE_P (f) || FRAME_GARBAGED_P (f)) |
| 3456 | return; |
| 3457 | |
| 3458 | if (! on && f->phys_cursor_x < 0) |
| 3459 | return; |
| 3460 | |
| 3461 | /* If we're not updating, then we want to use the current frame's |
| 3462 | cursor position, not our local idea of where the cursor ought to be. */ |
| 3463 | if (f != updating_frame) |
| 3464 | { |
| 3465 | curs_x = FRAME_CURSOR_X (f); |
| 3466 | curs_y = FRAME_CURSOR_Y (f); |
| 3467 | } |
| 3468 | |
| 3469 | /* If there is anything wrong with the current cursor state, remove it. */ |
| 3470 | if (f->phys_cursor_x >= 0 |
| 3471 | && (!on |
| 3472 | || f->phys_cursor_x != curs_x |
| 3473 | || f->phys_cursor_y != curs_y |
| 3474 | || f->display.x->current_cursor != bar_cursor)) |
| 3475 | { |
| 3476 | /* Erase the cursor by redrawing the character underneath it. */ |
| 3477 | x_draw_single_glyph (f, f->phys_cursor_y, f->phys_cursor_x, |
| 3478 | f->phys_cursor_glyph, |
| 3479 | current_glyphs->highlight[f->phys_cursor_y]); |
| 3480 | f->phys_cursor_x = -1; |
| 3481 | } |
| 3482 | |
| 3483 | /* If we now need a cursor in the new place or in the new form, do it so. */ |
| 3484 | if (on |
| 3485 | && (f->phys_cursor_x < 0 |
| 3486 | || (f->display.x->current_cursor != bar_cursor))) |
| 3487 | { |
| 3488 | f->phys_cursor_glyph |
| 3489 | = ((current_glyphs->enable[curs_y] |
| 3490 | && curs_x < current_glyphs->used[curs_y]) |
| 3491 | ? current_glyphs->glyphs[curs_y][curs_x] |
| 3492 | : SPACEGLYPH); |
| 3493 | XFillRectangle (x_current_display, FRAME_X_WINDOW (f), |
| 3494 | f->display.x->cursor_gc, |
| 3495 | CHAR_TO_PIXEL_COL (f, curs_x), |
| 3496 | CHAR_TO_PIXEL_ROW (f, curs_y), |
| 3497 | 1, FONT_HEIGHT (f->display.x->font)); |
| 3498 | |
| 3499 | f->phys_cursor_x = curs_x; |
| 3500 | f->phys_cursor_y = curs_y; |
| 3501 | |
| 3502 | f->display.x->current_cursor = bar_cursor; |
| 3503 | } |
| 3504 | |
| 3505 | if (updating_frame != f) |
| 3506 | XFlushQueue (); |
| 3507 | } |
| 3508 | |
| 3509 | |
| 3510 | /* Turn the displayed cursor of frame F on or off according to ON. |
| 3511 | If ON is nonzero, where to put the cursor is specified |
| 3512 | by F->cursor_x and F->cursor_y. */ |
| 3513 | |
| 3514 | static void |
| 3515 | x_display_box_cursor (f, on) |
| 3516 | struct frame *f; |
| 3517 | int on; |
| 3518 | { |
| 3519 | struct frame_glyphs *current_glyphs = FRAME_CURRENT_GLYPHS (f); |
| 3520 | |
| 3521 | /* This is pointless on invisible frames, and dangerous on garbaged |
| 3522 | frames; in the latter case, the frame may be in the midst of |
| 3523 | changing its size, and curs_x and curs_y may be off the frame. */ |
| 3524 | if (! FRAME_VISIBLE_P (f) || FRAME_GARBAGED_P (f)) |
| 3525 | return; |
| 3526 | |
| 3527 | /* If cursor is off and we want it off, return quickly. */ |
| 3528 | if (!on && f->phys_cursor_x < 0) |
| 3529 | return; |
| 3530 | |
| 3531 | /* If we're not updating, then we want to use the current frame's |
| 3532 | cursor position, not our local idea of where the cursor ought to be. */ |
| 3533 | if (f != updating_frame) |
| 3534 | { |
| 3535 | curs_x = FRAME_CURSOR_X (f); |
| 3536 | curs_y = FRAME_CURSOR_Y (f); |
| 3537 | } |
| 3538 | |
| 3539 | /* If cursor is currently being shown and we don't want it to be |
| 3540 | or it is in the wrong place, |
| 3541 | or we want a hollow box and it's not so, (pout!) |
| 3542 | erase it. */ |
| 3543 | if (f->phys_cursor_x >= 0 |
| 3544 | && (!on |
| 3545 | || f->phys_cursor_x != curs_x |
| 3546 | || f->phys_cursor_y != curs_y |
| 3547 | || (f->display.x->current_cursor != hollow_box_cursor |
| 3548 | && (f != x_highlight_frame)))) |
| 3549 | { |
| 3550 | /* Erase the cursor by redrawing the character underneath it. */ |
| 3551 | x_draw_single_glyph (f, f->phys_cursor_y, f->phys_cursor_x, |
| 3552 | f->phys_cursor_glyph, |
| 3553 | current_glyphs->highlight[f->phys_cursor_y]); |
| 3554 | f->phys_cursor_x = -1; |
| 3555 | } |
| 3556 | |
| 3557 | /* If we want to show a cursor, |
| 3558 | or we want a box cursor and it's not so, |
| 3559 | write it in the right place. */ |
| 3560 | if (on |
| 3561 | && (f->phys_cursor_x < 0 |
| 3562 | || (f->display.x->current_cursor != filled_box_cursor |
| 3563 | && f == x_highlight_frame))) |
| 3564 | { |
| 3565 | f->phys_cursor_glyph |
| 3566 | = ((current_glyphs->enable[curs_y] |
| 3567 | && curs_x < current_glyphs->used[curs_y]) |
| 3568 | ? current_glyphs->glyphs[curs_y][curs_x] |
| 3569 | : SPACEGLYPH); |
| 3570 | if (f != x_highlight_frame) |
| 3571 | { |
| 3572 | x_draw_box (f); |
| 3573 | f->display.x->current_cursor = hollow_box_cursor; |
| 3574 | } |
| 3575 | else |
| 3576 | { |
| 3577 | x_draw_single_glyph (f, curs_y, curs_x, |
| 3578 | f->phys_cursor_glyph, 2); |
| 3579 | f->display.x->current_cursor = filled_box_cursor; |
| 3580 | } |
| 3581 | |
| 3582 | f->phys_cursor_x = curs_x; |
| 3583 | f->phys_cursor_y = curs_y; |
| 3584 | } |
| 3585 | |
| 3586 | if (updating_frame != f) |
| 3587 | XFlushQueue (); |
| 3588 | } |
| 3589 | |
| 3590 | x_display_cursor (f, on) |
| 3591 | struct frame *f; |
| 3592 | int on; |
| 3593 | { |
| 3594 | if (FRAME_DESIRED_CURSOR (f) == filled_box_cursor) |
| 3595 | x_display_box_cursor (f, on); |
| 3596 | else if (FRAME_DESIRED_CURSOR (f) == bar_cursor) |
| 3597 | x_display_bar_cursor (f, on); |
| 3598 | else |
| 3599 | /* Those are the only two we have implemented! */ |
| 3600 | abort (); |
| 3601 | } |
| 3602 | \f |
| 3603 | /* Icons. */ |
| 3604 | |
| 3605 | /* Refresh bitmap kitchen sink icon for frame F |
| 3606 | when we get an expose event for it. */ |
| 3607 | |
| 3608 | refreshicon (f) |
| 3609 | struct frame *f; |
| 3610 | { |
| 3611 | #ifdef HAVE_X11 |
| 3612 | /* Normally, the window manager handles this function. */ |
| 3613 | #else /* ! defined (HAVE_X11) */ |
| 3614 | int mask; |
| 3615 | |
| 3616 | if (f->display.x->icon_bitmap_flag) |
| 3617 | XBitmapBitsPut (f->display.x->icon_desc, 0, 0, sink_width, sink_height, |
| 3618 | sink_bits, BlackPixel, WHITE_PIX_DEFAULT, |
| 3619 | icon_bitmap, GXcopy, AllPlanes); |
| 3620 | else |
| 3621 | { |
| 3622 | extern struct frame *selected_frame; |
| 3623 | struct Lisp_String *str; |
| 3624 | unsigned char *string; |
| 3625 | |
| 3626 | string |
| 3627 | = XSTRING (XBUFFER (XWINDOW (f->selected_window)->buffer)->name)->data; |
| 3628 | |
| 3629 | if (f->display.x->icon_label != string) |
| 3630 | { |
| 3631 | f->display.x->icon_label = string; |
| 3632 | XChangeWindow (f->display.x->icon_desc, |
| 3633 | XQueryWidth (string, icon_font_info->id) + 10, |
| 3634 | icon_font_info->height + 10); |
| 3635 | } |
| 3636 | |
| 3637 | XText (f->display.x->icon_desc, 5, 5, string, |
| 3638 | str->size, icon_font_info->id, |
| 3639 | BLACK_PIX_DEFAULT, WHITE_PIX_DEFAULT); |
| 3640 | } |
| 3641 | XFlushQueue (); |
| 3642 | #endif /* ! defined (HAVE_X11) */ |
| 3643 | } |
| 3644 | |
| 3645 | /* Make the x-window of frame F use the gnu icon bitmap. */ |
| 3646 | |
| 3647 | int |
| 3648 | x_bitmap_icon (f) |
| 3649 | struct frame *f; |
| 3650 | { |
| 3651 | int mask; |
| 3652 | Window icon_window; |
| 3653 | |
| 3654 | if (FRAME_X_WINDOW (f) == 0) |
| 3655 | return 1; |
| 3656 | |
| 3657 | #ifdef HAVE_X11 |
| 3658 | if (! icon_bitmap) |
| 3659 | icon_bitmap = |
| 3660 | XCreateBitmapFromData (x_current_display, FRAME_X_WINDOW (f), |
| 3661 | gnu_bits, gnu_width, gnu_height); |
| 3662 | x_wm_set_icon_pixmap (f, icon_bitmap); |
| 3663 | f->display.x->icon_bitmap_flag = 1; |
| 3664 | #else /* ! defined (HAVE_X11) */ |
| 3665 | if (f->display.x->icon_desc) |
| 3666 | { |
| 3667 | XClearIconWindow (FRAME_X_WINDOW (f)); |
| 3668 | XDestroyWindow (f->display.x->icon_desc); |
| 3669 | } |
| 3670 | |
| 3671 | icon_window = XCreateWindow (f->display.x->parent_desc, |
| 3672 | 0, 0, sink_width, sink_height, |
| 3673 | 2, WhitePixmap, (Pixmap) NULL); |
| 3674 | |
| 3675 | if (icon_window == 0) |
| 3676 | return 1; |
| 3677 | |
| 3678 | XSetIconWindow (FRAME_X_WINDOW (f), icon_window); |
| 3679 | XSelectInput (icon_window, ExposeWindow | UnmapWindow); |
| 3680 | |
| 3681 | f->display.x->icon_desc = icon_window; |
| 3682 | f->display.x->icon_bitmap_flag = 1; |
| 3683 | |
| 3684 | if (icon_bitmap == 0) |
| 3685 | icon_bitmap |
| 3686 | = XStoreBitmap (sink_mask_width, sink_mask_height, sink_mask_bits); |
| 3687 | #endif /* ! defined (HAVE_X11) */ |
| 3688 | |
| 3689 | return 0; |
| 3690 | } |
| 3691 | |
| 3692 | |
| 3693 | /* Make the x-window of frame F use a rectangle with text. */ |
| 3694 | |
| 3695 | int |
| 3696 | x_text_icon (f, icon_name) |
| 3697 | struct frame *f; |
| 3698 | char *icon_name; |
| 3699 | { |
| 3700 | #ifndef HAVE_X11 |
| 3701 | int mask; |
| 3702 | int width; |
| 3703 | Window icon_window; |
| 3704 | char *X_DefaultValue; |
| 3705 | Bitmap b1; |
| 3706 | |
| 3707 | #ifndef WhitePixel |
| 3708 | #define WhitePixel 1 |
| 3709 | #endif /* WhitePixel */ |
| 3710 | |
| 3711 | #ifndef BlackPixel |
| 3712 | #define BlackPixel 0 |
| 3713 | #endif /* BlackPixel */ |
| 3714 | #endif /* HAVE_X11 */ |
| 3715 | |
| 3716 | if (FRAME_X_WINDOW (f) == 0) |
| 3717 | return 1; |
| 3718 | |
| 3719 | #ifdef HAVE_X11 |
| 3720 | if (icon_name) |
| 3721 | f->display.x->icon_label = icon_name; |
| 3722 | else |
| 3723 | if (! f->display.x->icon_label) |
| 3724 | f->display.x->icon_label = " *emacs* "; |
| 3725 | |
| 3726 | #if 0 |
| 3727 | XSetIconName (x_current_display, FRAME_X_WINDOW (f), |
| 3728 | (char *) f->display.x->icon_label); |
| 3729 | #endif |
| 3730 | |
| 3731 | f->display.x->icon_bitmap_flag = 0; |
| 3732 | x_wm_set_icon_pixmap (f, 0); |
| 3733 | #else /* ! defined (HAVE_X11) */ |
| 3734 | if (icon_font_info == 0) |
| 3735 | icon_font_info |
| 3736 | = XGetFont (XGetDefault (XDISPLAY |
| 3737 | (char *) XSTRING (Vinvocation_name)->data, |
| 3738 | "BodyFont")); |
| 3739 | |
| 3740 | if (f->display.x->icon_desc) |
| 3741 | { |
| 3742 | XClearIconWindow (XDISPLAY FRAME_X_WINDOW (f)); |
| 3743 | XDestroyWindow (XDISPLAY f->display.x->icon_desc); |
| 3744 | } |
| 3745 | |
| 3746 | if (icon_name) |
| 3747 | f->display.x->icon_label = (unsigned char *) icon_name; |
| 3748 | else |
| 3749 | if (! f->display.x->icon_label) |
| 3750 | f->display.x->icon_label = XSTRING (f->name)->data; |
| 3751 | |
| 3752 | width = XStringWidth (f->display.x->icon_label, icon_font_info, 0, 0); |
| 3753 | icon_window = XCreateWindow (f->display.x->parent_desc, |
| 3754 | f->display.x->left_pos, |
| 3755 | f->display.x->top_pos, |
| 3756 | width + 10, icon_font_info->height + 10, |
| 3757 | 2, BlackPixmap, WhitePixmap); |
| 3758 | |
| 3759 | if (icon_window == 0) |
| 3760 | return 1; |
| 3761 | |
| 3762 | XSetIconWindow (FRAME_X_WINDOW (f), icon_window); |
| 3763 | XSelectInput (icon_window, ExposeWindow | ExposeRegion | UnmapWindow | ButtonPressed); |
| 3764 | |
| 3765 | f->display.x->icon_desc = icon_window; |
| 3766 | f->display.x->icon_bitmap_flag = 0; |
| 3767 | f->display.x->icon_label = 0; |
| 3768 | #endif /* ! defined (HAVE_X11) */ |
| 3769 | |
| 3770 | return 0; |
| 3771 | } |
| 3772 | \f |
| 3773 | /* Handling X errors. */ |
| 3774 | |
| 3775 | /* Shut down Emacs in an orderly fashion, because of a SIGPIPE on the |
| 3776 | X server's connection, or an error reported via the X protocol. */ |
| 3777 | |
| 3778 | static SIGTYPE |
| 3779 | x_connection_closed () |
| 3780 | { |
| 3781 | if (_Xdebug) |
| 3782 | abort (); |
| 3783 | |
| 3784 | shut_down_emacs (0, 1, Qnil); |
| 3785 | |
| 3786 | exit (70); |
| 3787 | } |
| 3788 | |
| 3789 | /* An X error handler which prints an error message and then kills |
| 3790 | Emacs. This is what's normally installed as Xlib's handler for |
| 3791 | protocol errors. */ |
| 3792 | static int |
| 3793 | x_error_quitter (display, error) |
| 3794 | Display *display; |
| 3795 | XErrorEvent *error; |
| 3796 | { |
| 3797 | char buf[256]; |
| 3798 | |
| 3799 | /* Note that there is no real way portable across R3/R4 to get the |
| 3800 | original error handler. */ |
| 3801 | |
| 3802 | XGetErrorText (display, error->error_code, buf, sizeof (buf)); |
| 3803 | fprintf (stderr, "X protocol error: %s on protocol request %d\n", |
| 3804 | buf, error->request_code); |
| 3805 | |
| 3806 | #if 0 |
| 3807 | /* While we're testing Emacs 19, we'll just dump core whenever we |
| 3808 | get an X error, so we can figure out why it happened. */ |
| 3809 | abort (); |
| 3810 | #endif |
| 3811 | |
| 3812 | x_connection_closed (); |
| 3813 | } |
| 3814 | |
| 3815 | /* A handler for X IO errors which prints an error message and then |
| 3816 | kills Emacs. This is what is always installed as Xlib's handler |
| 3817 | for I/O errors. */ |
| 3818 | static int |
| 3819 | x_io_error_quitter (display) |
| 3820 | Display *display; |
| 3821 | { |
| 3822 | fprintf (stderr, "Connection to X server %s lost.\n", |
| 3823 | XDisplayName (DisplayString (display))); |
| 3824 | |
| 3825 | #if 0 |
| 3826 | /* While we're testing Emacs 19, we'll just dump core whenever we |
| 3827 | get an X error, so we can figure out why it happened. */ |
| 3828 | abort (); |
| 3829 | #endif |
| 3830 | |
| 3831 | x_connection_closed (); |
| 3832 | } |
| 3833 | |
| 3834 | /* A buffer for storing X error messages. */ |
| 3835 | static char *x_caught_error_message; |
| 3836 | #define X_CAUGHT_ERROR_MESSAGE_SIZE 200 |
| 3837 | |
| 3838 | /* An X error handler which stores the error message in |
| 3839 | x_caught_error_message. This is what's installed when |
| 3840 | x_catch_errors is in effect. */ |
| 3841 | static int |
| 3842 | x_error_catcher (display, error) |
| 3843 | Display *display; |
| 3844 | XErrorEvent *error; |
| 3845 | { |
| 3846 | XGetErrorText (display, error->error_code, |
| 3847 | x_caught_error_message, X_CAUGHT_ERROR_MESSAGE_SIZE); |
| 3848 | } |
| 3849 | |
| 3850 | |
| 3851 | /* Begin trapping X errors. |
| 3852 | |
| 3853 | After calling this function, X protocol errors no longer cause |
| 3854 | Emacs to exit; instead, they are recorded in x_cfc_error_message. |
| 3855 | |
| 3856 | Calling x_check_errors signals an Emacs error if an X error has |
| 3857 | occurred since the last call to x_catch_errors or x_check_errors. |
| 3858 | |
| 3859 | Calling x_uncatch_errors resumes the normal error handling. */ |
| 3860 | |
| 3861 | void x_catch_errors(), x_check_errors (), x_uncatch_errors (); |
| 3862 | |
| 3863 | void |
| 3864 | x_catch_errors () |
| 3865 | { |
| 3866 | /* Make sure any errors from previous requests have been dealt with. */ |
| 3867 | XSync (x_current_display, False); |
| 3868 | |
| 3869 | /* Set up the error buffer. */ |
| 3870 | x_caught_error_message |
| 3871 | = (char*) xmalloc (X_CAUGHT_ERROR_MESSAGE_SIZE); |
| 3872 | x_caught_error_message[0] = '\0'; |
| 3873 | |
| 3874 | /* Install our little error handler. */ |
| 3875 | XHandleError (x_error_catcher); |
| 3876 | } |
| 3877 | |
| 3878 | /* If any X protocol errors have arrived since the last call to |
| 3879 | x_catch_errors or x_check_errors, signal an Emacs error using |
| 3880 | sprintf (a buffer, FORMAT, the x error message text) as the text. */ |
| 3881 | void |
| 3882 | x_check_errors (format) |
| 3883 | char *format; |
| 3884 | { |
| 3885 | /* Make sure to catch any errors incurred so far. */ |
| 3886 | XSync (x_current_display, False); |
| 3887 | |
| 3888 | if (x_caught_error_message[0]) |
| 3889 | { |
| 3890 | char buf[X_CAUGHT_ERROR_MESSAGE_SIZE + 56]; |
| 3891 | |
| 3892 | sprintf (buf, format, x_caught_error_message); |
| 3893 | x_uncatch_errors (); |
| 3894 | error (buf); |
| 3895 | } |
| 3896 | } |
| 3897 | |
| 3898 | void |
| 3899 | x_uncatch_errors () |
| 3900 | { |
| 3901 | xfree (x_caught_error_message); |
| 3902 | x_caught_error_message = 0; |
| 3903 | XHandleError (x_error_quitter); |
| 3904 | } |
| 3905 | |
| 3906 | #if 0 |
| 3907 | static unsigned int x_wire_count; |
| 3908 | x_trace_wire () |
| 3909 | { |
| 3910 | fprintf (stderr, "Lib call: %d\n", ++x_wire_count); |
| 3911 | } |
| 3912 | #endif /* ! 0 */ |
| 3913 | |
| 3914 | \f |
| 3915 | /* Changing the font of the frame. */ |
| 3916 | |
| 3917 | /* Set the font of the x-window specified by frame F |
| 3918 | to the font named NEWNAME. This is safe to use |
| 3919 | even before F has an actual x-window. */ |
| 3920 | |
| 3921 | #ifdef HAVE_X11 |
| 3922 | |
| 3923 | /* A table of all the fonts we have already loaded. */ |
| 3924 | static XFontStruct **x_font_table; |
| 3925 | |
| 3926 | /* The current capacity of x_font_table. */ |
| 3927 | static int x_font_table_size; |
| 3928 | |
| 3929 | /* The number of fonts actually stored in x_font_table. |
| 3930 | x_font_table[n] is used and valid iff 0 <= n < n_fonts. |
| 3931 | 0 <= n_fonts <= x_font_table_size. */ |
| 3932 | static int n_fonts; |
| 3933 | |
| 3934 | Lisp_Object |
| 3935 | x_new_font (f, fontname) |
| 3936 | struct frame *f; |
| 3937 | register char *fontname; |
| 3938 | { |
| 3939 | int already_loaded; |
| 3940 | int n_matching_fonts; |
| 3941 | XFontStruct *font_info; |
| 3942 | char **font_names; |
| 3943 | |
| 3944 | /* Get a list of all the fonts that match this name. Once we |
| 3945 | have a list of matching fonts, we compare them against the fonts |
| 3946 | we already have by comparing font ids. */ |
| 3947 | font_names = (char **) XListFontsWithInfo (x_current_display, fontname, |
| 3948 | 1024, &n_matching_fonts, |
| 3949 | &font_info); |
| 3950 | /* Apparently it doesn't set n_matching_fonts to zero when it can't |
| 3951 | find any matches; font_names == 0 is the only clue. */ |
| 3952 | if (! font_names) |
| 3953 | n_matching_fonts = 0; |
| 3954 | |
| 3955 | /* Don't just give up if n_matching_fonts is 0. |
| 3956 | Apparently there's a bug on Suns: XListFontsWithInfo can |
| 3957 | fail to find a font, but XLoadQueryFont may still find it. */ |
| 3958 | |
| 3959 | /* See if we've already loaded a matching font. */ |
| 3960 | already_loaded = -1; |
| 3961 | if (n_matching_fonts != 0) |
| 3962 | { |
| 3963 | int i, j; |
| 3964 | |
| 3965 | for (i = 0; i < n_fonts; i++) |
| 3966 | for (j = 0; j < n_matching_fonts; j++) |
| 3967 | if (x_font_table[i]->fid == font_info[j].fid) |
| 3968 | { |
| 3969 | already_loaded = i; |
| 3970 | fontname = font_names[j]; |
| 3971 | goto found_font; |
| 3972 | } |
| 3973 | } |
| 3974 | found_font: |
| 3975 | |
| 3976 | /* If we have, just return it from the table. */ |
| 3977 | if (already_loaded > 0) |
| 3978 | f->display.x->font = x_font_table[already_loaded]; |
| 3979 | |
| 3980 | /* Otherwise, load the font and add it to the table. */ |
| 3981 | else |
| 3982 | { |
| 3983 | int i; |
| 3984 | XFontStruct *font; |
| 3985 | |
| 3986 | /* Try to find a character-cell font in the list. */ |
| 3987 | #if 0 |
| 3988 | /* A laudable goal, but this isn't how to do it. */ |
| 3989 | for (i = 0; i < n_matching_fonts; i++) |
| 3990 | if (! font_info[i].per_char) |
| 3991 | break; |
| 3992 | #else |
| 3993 | i = 0; |
| 3994 | #endif |
| 3995 | |
| 3996 | /* See comment above. */ |
| 3997 | if (n_matching_fonts != 0) |
| 3998 | fontname = font_names[i]; |
| 3999 | |
| 4000 | font = (XFontStruct *) XLoadQueryFont (x_current_display, fontname); |
| 4001 | if (! font) |
| 4002 | { |
| 4003 | /* Free the information from XListFontsWithInfo. */ |
| 4004 | if (n_matching_fonts) |
| 4005 | XFreeFontInfo (font_names, font_info, n_matching_fonts); |
| 4006 | return Qnil; |
| 4007 | } |
| 4008 | |
| 4009 | /* Do we need to create the table? */ |
| 4010 | if (x_font_table_size == 0) |
| 4011 | { |
| 4012 | x_font_table_size = 16; |
| 4013 | x_font_table |
| 4014 | = (XFontStruct **) xmalloc (x_font_table_size |
| 4015 | * sizeof (x_font_table[0])); |
| 4016 | } |
| 4017 | /* Do we need to grow the table? */ |
| 4018 | else if (n_fonts >= x_font_table_size) |
| 4019 | { |
| 4020 | x_font_table_size *= 2; |
| 4021 | x_font_table |
| 4022 | = (XFontStruct **) xrealloc (x_font_table, |
| 4023 | (x_font_table_size |
| 4024 | * sizeof (x_font_table[0]))); |
| 4025 | } |
| 4026 | |
| 4027 | f->display.x->font = x_font_table[n_fonts++] = font; |
| 4028 | } |
| 4029 | |
| 4030 | /* Now make the frame display the given font. */ |
| 4031 | if (FRAME_X_WINDOW (f) != 0) |
| 4032 | { |
| 4033 | XSetFont (x_current_display, f->display.x->normal_gc, |
| 4034 | f->display.x->font->fid); |
| 4035 | XSetFont (x_current_display, f->display.x->reverse_gc, |
| 4036 | f->display.x->font->fid); |
| 4037 | XSetFont (x_current_display, f->display.x->cursor_gc, |
| 4038 | f->display.x->font->fid); |
| 4039 | |
| 4040 | x_set_window_size (f, f->width, f->height); |
| 4041 | } |
| 4042 | |
| 4043 | { |
| 4044 | Lisp_Object lispy_name = build_string (fontname); |
| 4045 | |
| 4046 | |
| 4047 | /* Free the information from XListFontsWithInfo. The data |
| 4048 | we actually retain comes from XLoadQueryFont. */ |
| 4049 | XFreeFontInfo (font_names, font_info, n_matching_fonts); |
| 4050 | |
| 4051 | return lispy_name; |
| 4052 | } |
| 4053 | } |
| 4054 | #else /* ! defined (HAVE_X11) */ |
| 4055 | x_new_font (f, newname) |
| 4056 | struct frame *f; |
| 4057 | register char *newname; |
| 4058 | { |
| 4059 | FONT_TYPE *temp; |
| 4060 | int mask; |
| 4061 | |
| 4062 | temp = XGetFont (newname); |
| 4063 | if (temp == (FONT_TYPE *) 0) |
| 4064 | return 1; |
| 4065 | |
| 4066 | if (f->display.x->font) |
| 4067 | XLoseFont (f->display.x->font); |
| 4068 | |
| 4069 | f->display.x->font = temp; |
| 4070 | |
| 4071 | if (FRAME_X_WINDOW (f) != 0) |
| 4072 | x_set_window_size (f, f->width, f->height); |
| 4073 | |
| 4074 | return 0; |
| 4075 | } |
| 4076 | #endif /* ! defined (HAVE_X11) */ |
| 4077 | \f |
| 4078 | /* X Window sizes and positions. */ |
| 4079 | |
| 4080 | x_calc_absolute_position (f) |
| 4081 | struct frame *f; |
| 4082 | { |
| 4083 | #ifdef HAVE_X11 |
| 4084 | if (f->display.x->left_pos < 0) |
| 4085 | f->display.x->left_pos |
| 4086 | = x_screen_width - PIXEL_WIDTH (f) + f->display.x->left_pos; |
| 4087 | |
| 4088 | if (f->display.x->top_pos < 0) |
| 4089 | f->display.x->top_pos |
| 4090 | = x_screen_height - PIXEL_HEIGHT (f) + f->display.x->top_pos; |
| 4091 | #else /* ! defined (HAVE_X11) */ |
| 4092 | WINDOWINFO_TYPE parentinfo; |
| 4093 | |
| 4094 | XGetWindowInfo (FRAME_X_WINDOW (f), &parentinfo); |
| 4095 | |
| 4096 | if (f->display.x->left_pos < 0) |
| 4097 | f->display.x->left_pos = parentinfo.width + (f->display.x->left_pos + 1) |
| 4098 | - PIXEL_WIDTH (f) - 2 * f->display.x->internal_border_width; |
| 4099 | |
| 4100 | if (f->display.x->top_pos < 0) |
| 4101 | f->display.x->top_pos = parentinfo.height + (f->display.x->top_pos + 1) |
| 4102 | - PIXEL_HEIGHT (f) - 2 * f->display.x->internal_border_width; |
| 4103 | #endif /* ! defined (HAVE_X11) */ |
| 4104 | } |
| 4105 | |
| 4106 | x_set_offset (f, xoff, yoff) |
| 4107 | struct frame *f; |
| 4108 | register int xoff, yoff; |
| 4109 | { |
| 4110 | f->display.x->top_pos = yoff; |
| 4111 | f->display.x->left_pos = xoff; |
| 4112 | x_calc_absolute_position (f); |
| 4113 | |
| 4114 | BLOCK_INPUT; |
| 4115 | XMoveWindow (XDISPLAY FRAME_X_WINDOW (f), |
| 4116 | f->display.x->left_pos, f->display.x->top_pos); |
| 4117 | #ifdef HAVE_X11 |
| 4118 | x_wm_set_size_hint (f, 0); |
| 4119 | #endif /* ! defined (HAVE_X11) */ |
| 4120 | UNBLOCK_INPUT; |
| 4121 | } |
| 4122 | |
| 4123 | /* Call this to change the size of frame F's x-window. */ |
| 4124 | |
| 4125 | x_set_window_size (f, cols, rows) |
| 4126 | struct frame *f; |
| 4127 | int cols, rows; |
| 4128 | { |
| 4129 | int pixelwidth, pixelheight; |
| 4130 | int mask; |
| 4131 | |
| 4132 | BLOCK_INPUT; |
| 4133 | |
| 4134 | check_frame_size (f, &rows, &cols); |
| 4135 | f->display.x->vertical_scroll_bar_extra = |
| 4136 | (FRAME_HAS_VERTICAL_SCROLL_BARS (f) |
| 4137 | ? VERTICAL_SCROLL_BAR_PIXEL_WIDTH (f) |
| 4138 | : 0); |
| 4139 | pixelwidth = CHAR_TO_PIXEL_WIDTH (f, cols); |
| 4140 | pixelheight = CHAR_TO_PIXEL_HEIGHT (f, rows); |
| 4141 | |
| 4142 | #ifdef HAVE_X11 |
| 4143 | x_wm_set_size_hint (f, 0); |
| 4144 | #endif /* ! defined (HAVE_X11) */ |
| 4145 | XChangeWindowSize (FRAME_X_WINDOW (f), pixelwidth, pixelheight); |
| 4146 | |
| 4147 | /* Now, strictly speaking, we can't be sure that this is accurate, |
| 4148 | but the window manager will get around to dealing with the size |
| 4149 | change request eventually, and we'll hear how it went when the |
| 4150 | ConfigureNotify event gets here. |
| 4151 | |
| 4152 | We could just not bother storing any of this information here, |
| 4153 | and let the ConfigureNotify event set everything up, but that |
| 4154 | might be kind of confusing to the lisp code, since size changes |
| 4155 | wouldn't be reported in the frame parameters until some random |
| 4156 | point in the future when the ConfigureNotify event arrives. */ |
| 4157 | change_frame_size (f, rows, cols, 0, 0); |
| 4158 | PIXEL_WIDTH (f) = pixelwidth; |
| 4159 | PIXEL_HEIGHT (f) = pixelheight; |
| 4160 | |
| 4161 | /* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to |
| 4162 | receive in the ConfigureNotify event; if we get what we asked |
| 4163 | for, then the event won't cause the screen to become garbaged, so |
| 4164 | we have to make sure to do it here. */ |
| 4165 | SET_FRAME_GARBAGED (f); |
| 4166 | |
| 4167 | XFlushQueue (); |
| 4168 | UNBLOCK_INPUT; |
| 4169 | } |
| 4170 | |
| 4171 | #ifndef HAVE_X11 |
| 4172 | x_set_resize_hint (f) |
| 4173 | struct frame *f; |
| 4174 | { |
| 4175 | XSetResizeHint (FRAME_X_WINDOW (f), |
| 4176 | 2 * f->display.x->internal_border_width, |
| 4177 | 2 * f->display.x->internal_border_width, |
| 4178 | FONT_WIDTH (f->display.x->font), |
| 4179 | FONT_HEIGHT (f->display.x->font)); |
| 4180 | } |
| 4181 | #endif /* HAVE_X11 */ |
| 4182 | \f |
| 4183 | /* Mouse warping, focus shifting, raising and lowering. */ |
| 4184 | |
| 4185 | x_set_mouse_position (f, x, y) |
| 4186 | struct frame *f; |
| 4187 | int x, y; |
| 4188 | { |
| 4189 | int pix_x, pix_y; |
| 4190 | |
| 4191 | x_raise_frame (f); |
| 4192 | |
| 4193 | pix_x = CHAR_TO_PIXEL_COL (f, x) + FONT_WIDTH (f->display.x->font) / 2; |
| 4194 | pix_y = CHAR_TO_PIXEL_ROW (f, y) + FONT_HEIGHT (f->display.x->font) / 2; |
| 4195 | |
| 4196 | if (pix_x < 0) pix_x = 0; |
| 4197 | if (pix_x > PIXEL_WIDTH (f)) pix_x = PIXEL_WIDTH (f); |
| 4198 | |
| 4199 | if (pix_y < 0) pix_y = 0; |
| 4200 | if (pix_y > PIXEL_HEIGHT (f)) pix_y = PIXEL_HEIGHT (f); |
| 4201 | |
| 4202 | BLOCK_INPUT; |
| 4203 | |
| 4204 | XWarpMousePointer (FRAME_X_WINDOW (f), pix_x, pix_y); |
| 4205 | UNBLOCK_INPUT; |
| 4206 | } |
| 4207 | |
| 4208 | #ifdef HAVE_X11 |
| 4209 | x_focus_on_frame (f) |
| 4210 | struct frame *f; |
| 4211 | { |
| 4212 | x_raise_frame (f); |
| 4213 | #if 0 |
| 4214 | /* I don't think that the ICCCM allows programs to do things like this |
| 4215 | without the interaction of the window manager. Whatever you end up |
| 4216 | doing with this code, do it to x_unfocus_frame too. */ |
| 4217 | XSetInputFocus (x_current_display, FRAME_X_WINDOW (f), |
| 4218 | RevertToPointerRoot, CurrentTime); |
| 4219 | #endif /* ! 0 */ |
| 4220 | } |
| 4221 | |
| 4222 | x_unfocus_frame (f) |
| 4223 | struct frame *f; |
| 4224 | { |
| 4225 | #if 0 |
| 4226 | /* Look at the remarks in x_focus_on_frame. */ |
| 4227 | if (x_focus_frame == f) |
| 4228 | XSetInputFocus (x_current_display, PointerRoot, |
| 4229 | RevertToPointerRoot, CurrentTime); |
| 4230 | #endif /* ! 0 */ |
| 4231 | } |
| 4232 | |
| 4233 | #endif /* ! defined (HAVE_X11) */ |
| 4234 | |
| 4235 | /* Raise frame F. */ |
| 4236 | |
| 4237 | x_raise_frame (f) |
| 4238 | struct frame *f; |
| 4239 | { |
| 4240 | if (f->async_visible) |
| 4241 | { |
| 4242 | BLOCK_INPUT; |
| 4243 | XRaiseWindow (XDISPLAY FRAME_X_WINDOW (f)); |
| 4244 | XFlushQueue (); |
| 4245 | UNBLOCK_INPUT; |
| 4246 | } |
| 4247 | } |
| 4248 | |
| 4249 | /* Lower frame F. */ |
| 4250 | |
| 4251 | x_lower_frame (f) |
| 4252 | struct frame *f; |
| 4253 | { |
| 4254 | if (f->async_visible) |
| 4255 | { |
| 4256 | BLOCK_INPUT; |
| 4257 | XLowerWindow (XDISPLAY FRAME_X_WINDOW (f)); |
| 4258 | XFlushQueue (); |
| 4259 | UNBLOCK_INPUT; |
| 4260 | } |
| 4261 | } |
| 4262 | |
| 4263 | static void |
| 4264 | XTframe_raise_lower (f, raise) |
| 4265 | FRAME_PTR f; |
| 4266 | int raise; |
| 4267 | { |
| 4268 | if (raise) |
| 4269 | x_raise_frame (f); |
| 4270 | else |
| 4271 | x_lower_frame (f); |
| 4272 | } |
| 4273 | |
| 4274 | |
| 4275 | /* Change from withdrawn state to mapped state. */ |
| 4276 | |
| 4277 | x_make_frame_visible (f) |
| 4278 | struct frame *f; |
| 4279 | { |
| 4280 | int mask; |
| 4281 | |
| 4282 | BLOCK_INPUT; |
| 4283 | |
| 4284 | if (! FRAME_VISIBLE_P (f)) |
| 4285 | { |
| 4286 | #ifdef HAVE_X11 |
| 4287 | if (! EQ (Vx_no_window_manager, Qt)) |
| 4288 | x_wm_set_window_state (f, NormalState); |
| 4289 | |
| 4290 | XMapWindow (XDISPLAY FRAME_X_WINDOW (f)); |
| 4291 | if (FRAME_HAS_VERTICAL_SCROLL_BARS (f)) |
| 4292 | XMapSubwindows (x_current_display, FRAME_X_WINDOW (f)); |
| 4293 | #else /* ! defined (HAVE_X11) */ |
| 4294 | XMapWindow (XDISPLAY FRAME_X_WINDOW (f)); |
| 4295 | if (f->display.x->icon_desc != 0) |
| 4296 | XUnmapWindow (f->display.x->icon_desc); |
| 4297 | |
| 4298 | /* Handled by the MapNotify event for X11 */ |
| 4299 | f->async_visible = 1; |
| 4300 | f->async_iconified = 0; |
| 4301 | |
| 4302 | /* NOTE: this may cause problems for the first frame. */ |
| 4303 | XTcursor_to (0, 0); |
| 4304 | #endif /* ! defined (HAVE_X11) */ |
| 4305 | } |
| 4306 | |
| 4307 | XFlushQueue (); |
| 4308 | |
| 4309 | UNBLOCK_INPUT; |
| 4310 | } |
| 4311 | |
| 4312 | /* Change from mapped state to withdrawn state. */ |
| 4313 | |
| 4314 | x_make_frame_invisible (f) |
| 4315 | struct frame *f; |
| 4316 | { |
| 4317 | int mask; |
| 4318 | |
| 4319 | /* Don't keep the highlight on an invisible frame. */ |
| 4320 | if (x_highlight_frame == f) |
| 4321 | x_highlight_frame = 0; |
| 4322 | |
| 4323 | if (! f->async_visible && ! f->async_iconified) |
| 4324 | return; |
| 4325 | |
| 4326 | BLOCK_INPUT; |
| 4327 | |
| 4328 | #ifdef HAVE_X11R4 |
| 4329 | |
| 4330 | if (! XWithdrawWindow (x_current_display, FRAME_X_WINDOW (f), |
| 4331 | DefaultScreen (x_current_display))) |
| 4332 | { |
| 4333 | UNBLOCK_INPUT_RESIGNAL; |
| 4334 | error ("can't notify window manager of window withdrawal"); |
| 4335 | } |
| 4336 | |
| 4337 | #else /* ! defined (HAVE_X11R4) */ |
| 4338 | #ifdef HAVE_X11 |
| 4339 | |
| 4340 | /* Tell the window manager what we're going to do. */ |
| 4341 | if (! EQ (Vx_no_window_manager, Qt)) |
| 4342 | { |
| 4343 | XEvent unmap; |
| 4344 | |
| 4345 | unmap.xunmap.type = UnmapNotify; |
| 4346 | unmap.xunmap.window = FRAME_X_WINDOW (f); |
| 4347 | unmap.xunmap.event = DefaultRootWindow (x_current_display); |
| 4348 | unmap.xunmap.from_configure = False; |
| 4349 | if (! XSendEvent (x_current_display, |
| 4350 | DefaultRootWindow (x_current_display), |
| 4351 | False, |
| 4352 | SubstructureRedirectMask|SubstructureNotifyMask, |
| 4353 | &unmap)) |
| 4354 | { |
| 4355 | UNBLOCK_INPUT_RESIGNAL; |
| 4356 | error ("can't notify window manager of withdrawal"); |
| 4357 | } |
| 4358 | } |
| 4359 | |
| 4360 | /* Unmap the window ourselves. Cheeky! */ |
| 4361 | XUnmapWindow (x_current_display, FRAME_X_WINDOW (f)); |
| 4362 | |
| 4363 | #else /* ! defined (HAVE_X11) */ |
| 4364 | |
| 4365 | XUnmapWindow (FRAME_X_WINDOW (f)); |
| 4366 | f->async_visible = 0; /* Handled by the UnMap event for X11 */ |
| 4367 | if (f->display.x->icon_desc != 0) |
| 4368 | XUnmapWindow (f->display.x->icon_desc); |
| 4369 | |
| 4370 | #endif /* ! defined (HAVE_X11) */ |
| 4371 | #endif /* ! defined (HAVE_X11R4) */ |
| 4372 | |
| 4373 | XFlushQueue (); |
| 4374 | UNBLOCK_INPUT; |
| 4375 | } |
| 4376 | |
| 4377 | /* Change window state from mapped to iconified. */ |
| 4378 | |
| 4379 | x_iconify_frame (f) |
| 4380 | struct frame *f; |
| 4381 | { |
| 4382 | int mask; |
| 4383 | |
| 4384 | /* Don't keep the highlight on an invisible frame. */ |
| 4385 | if (x_highlight_frame == f) |
| 4386 | x_highlight_frame = 0; |
| 4387 | |
| 4388 | if (f->async_iconified) |
| 4389 | return; |
| 4390 | |
| 4391 | BLOCK_INPUT; |
| 4392 | |
| 4393 | #ifdef HAVE_X11 |
| 4394 | /* Since we don't know which revision of X we're running, we'll use both |
| 4395 | the X11R3 and X11R4 techniques. I don't know if this is a good idea. */ |
| 4396 | |
| 4397 | /* X11R4: send a ClientMessage to the window manager using the |
| 4398 | WM_CHANGE_STATE type. */ |
| 4399 | { |
| 4400 | XEvent message; |
| 4401 | |
| 4402 | message.xclient.window = FRAME_X_WINDOW (f); |
| 4403 | message.xclient.type = ClientMessage; |
| 4404 | message.xclient.message_type = Xatom_wm_change_state; |
| 4405 | message.xclient.format = 32; |
| 4406 | message.xclient.data.l[0] = IconicState; |
| 4407 | |
| 4408 | if (! XSendEvent (x_current_display, |
| 4409 | DefaultRootWindow (x_current_display), |
| 4410 | False, |
| 4411 | SubstructureRedirectMask | SubstructureNotifyMask, |
| 4412 | &message)) |
| 4413 | { |
| 4414 | UNBLOCK_INPUT_RESIGNAL; |
| 4415 | error ("Can't notify window manager of iconification."); |
| 4416 | } |
| 4417 | } |
| 4418 | |
| 4419 | /* X11R3: set the initial_state field of the window manager hints to |
| 4420 | IconicState. */ |
| 4421 | x_wm_set_window_state (f, IconicState); |
| 4422 | |
| 4423 | f->async_iconified = 1; |
| 4424 | #else /* ! defined (HAVE_X11) */ |
| 4425 | XUnmapWindow (XDISPLAY FRAME_X_WINDOW (f)); |
| 4426 | |
| 4427 | f->async_visible = 0; /* Handled in the UnMap event for X11. */ |
| 4428 | if (f->display.x->icon_desc != 0) |
| 4429 | { |
| 4430 | XMapWindow (XDISPLAY f->display.x->icon_desc); |
| 4431 | refreshicon (f); |
| 4432 | } |
| 4433 | #endif /* ! defined (HAVE_X11) */ |
| 4434 | |
| 4435 | XFlushQueue (); |
| 4436 | UNBLOCK_INPUT; |
| 4437 | } |
| 4438 | |
| 4439 | /* Destroy the X window of frame F. */ |
| 4440 | |
| 4441 | x_destroy_window (f) |
| 4442 | struct frame *f; |
| 4443 | { |
| 4444 | BLOCK_INPUT; |
| 4445 | |
| 4446 | if (f->display.x->icon_desc != 0) |
| 4447 | XDestroyWindow (XDISPLAY f->display.x->icon_desc); |
| 4448 | XDestroyWindow (XDISPLAY f->display.x->window_desc); |
| 4449 | free_frame_faces (f); |
| 4450 | XFlushQueue (); |
| 4451 | |
| 4452 | xfree (f->display.x); |
| 4453 | f->display.x = 0; |
| 4454 | if (f == x_focus_frame) |
| 4455 | x_focus_frame = 0; |
| 4456 | if (f == x_highlight_frame) |
| 4457 | x_highlight_frame = 0; |
| 4458 | |
| 4459 | UNBLOCK_INPUT; |
| 4460 | } |
| 4461 | \f |
| 4462 | /* Manage event queues for X10. */ |
| 4463 | |
| 4464 | #ifndef HAVE_X11 |
| 4465 | |
| 4466 | /* Manage event queues. |
| 4467 | |
| 4468 | This code is only used by the X10 support. |
| 4469 | |
| 4470 | We cannot leave events in the X queue and get them when we are ready |
| 4471 | because X does not provide a subroutine to get only a certain kind |
| 4472 | of event but not block if there are no queued events of that kind. |
| 4473 | |
| 4474 | Therefore, we must examine events as they come in and copy events |
| 4475 | of certain kinds into our private queues. |
| 4476 | |
| 4477 | All ExposeRegion events are put in x_expose_queue. |
| 4478 | All ButtonPressed and ButtonReleased events are put in x_mouse_queue. */ |
| 4479 | |
| 4480 | |
| 4481 | /* Write the event *P_XREP into the event queue *QUEUE. |
| 4482 | If the queue is full, do nothing, but return nonzero. */ |
| 4483 | |
| 4484 | int |
| 4485 | enqueue_event (p_xrep, queue) |
| 4486 | register XEvent *p_xrep; |
| 4487 | register struct event_queue *queue; |
| 4488 | { |
| 4489 | int newindex = queue->windex + 1; |
| 4490 | if (newindex == EVENT_BUFFER_SIZE) |
| 4491 | newindex = 0; |
| 4492 | if (newindex == queue->rindex) |
| 4493 | return -1; |
| 4494 | queue->xrep[queue->windex] = *p_xrep; |
| 4495 | queue->windex = newindex; |
| 4496 | return 0; |
| 4497 | } |
| 4498 | |
| 4499 | /* Fetch the next event from queue *QUEUE and store it in *P_XREP. |
| 4500 | If *QUEUE is empty, do nothing and return 0. */ |
| 4501 | |
| 4502 | int |
| 4503 | dequeue_event (p_xrep, queue) |
| 4504 | register XEvent *p_xrep; |
| 4505 | register struct event_queue *queue; |
| 4506 | { |
| 4507 | if (queue->windex == queue->rindex) |
| 4508 | return 0; |
| 4509 | *p_xrep = queue->xrep[queue->rindex++]; |
| 4510 | if (queue->rindex == EVENT_BUFFER_SIZE) |
| 4511 | queue->rindex = 0; |
| 4512 | return 1; |
| 4513 | } |
| 4514 | |
| 4515 | /* Return the number of events buffered in *QUEUE. */ |
| 4516 | |
| 4517 | int |
| 4518 | queue_event_count (queue) |
| 4519 | register struct event_queue *queue; |
| 4520 | { |
| 4521 | int tem = queue->windex - queue->rindex; |
| 4522 | if (tem >= 0) |
| 4523 | return tem; |
| 4524 | return EVENT_BUFFER_SIZE + tem; |
| 4525 | } |
| 4526 | |
| 4527 | /* Return nonzero if mouse input is pending. */ |
| 4528 | |
| 4529 | int |
| 4530 | mouse_event_pending_p () |
| 4531 | { |
| 4532 | return queue_event_count (&x_mouse_queue); |
| 4533 | } |
| 4534 | #endif /* HAVE_X11 */ |
| 4535 | \f |
| 4536 | /* Setting window manager hints. */ |
| 4537 | |
| 4538 | #ifdef HAVE_X11 |
| 4539 | |
| 4540 | x_wm_set_size_hint (f, prompting) |
| 4541 | struct frame *f; |
| 4542 | long prompting; |
| 4543 | { |
| 4544 | XSizeHints size_hints; |
| 4545 | Window window = FRAME_X_WINDOW (f); |
| 4546 | |
| 4547 | size_hints.flags = PResizeInc | PMinSize /* | PMaxSize */; |
| 4548 | |
| 4549 | flexlines = f->height; |
| 4550 | |
| 4551 | size_hints.x = f->display.x->left_pos; |
| 4552 | size_hints.y = f->display.x->top_pos; |
| 4553 | size_hints.height = PIXEL_HEIGHT (f); |
| 4554 | size_hints.width = PIXEL_WIDTH (f); |
| 4555 | size_hints.width_inc = FONT_WIDTH (f->display.x->font); |
| 4556 | size_hints.height_inc = FONT_HEIGHT (f->display.x->font); |
| 4557 | #if 0 |
| 4558 | size_hints.max_width = x_screen_width - CHAR_TO_PIXEL_WIDTH (f, 0); |
| 4559 | size_hints.max_height = x_screen_height - CHAR_TO_PIXEL_HEIGHT (f, 0); |
| 4560 | #endif |
| 4561 | { |
| 4562 | int base_width, base_height; |
| 4563 | |
| 4564 | base_width = CHAR_TO_PIXEL_WIDTH (f, 0); |
| 4565 | base_height = CHAR_TO_PIXEL_HEIGHT (f, 0); |
| 4566 | |
| 4567 | { |
| 4568 | int min_rows = 0, min_cols = 0; |
| 4569 | check_frame_size (f, &min_rows, &min_cols); |
| 4570 | |
| 4571 | /* The window manager uses the base width hints to calculate the |
| 4572 | current number of rows and columns in the frame while |
| 4573 | resizing; min_width and min_height aren't useful for this |
| 4574 | purpose, since they might not give the dimensions for a |
| 4575 | zero-row, zero-column frame. |
| 4576 | |
| 4577 | We use the base_width and base_height members if we have |
| 4578 | them; otherwise, we set the min_width and min_height members |
| 4579 | to the size for a zero x zero frame. */ |
| 4580 | |
| 4581 | #ifdef HAVE_X11R4 |
| 4582 | size_hints.flags |= PBaseSize; |
| 4583 | size_hints.base_width = base_width; |
| 4584 | size_hints.base_height = base_height; |
| 4585 | size_hints.min_width = base_width + min_cols * size_hints.width_inc; |
| 4586 | size_hints.min_height = base_height + min_rows * size_hints.height_inc; |
| 4587 | #else |
| 4588 | size_hints.min_width = base_width; |
| 4589 | size_hints.min_height = base_height; |
| 4590 | #endif |
| 4591 | } |
| 4592 | |
| 4593 | } |
| 4594 | |
| 4595 | if (prompting) |
| 4596 | size_hints.flags |= prompting; |
| 4597 | else |
| 4598 | { |
| 4599 | XSizeHints hints; /* Sometimes I hate X Windows... */ |
| 4600 | |
| 4601 | if (XGetNormalHints (x_current_display, window, &hints) == 0) |
| 4602 | hints.flags = 0; |
| 4603 | if (hints.flags & PSize) |
| 4604 | size_hints.flags |= PSize; |
| 4605 | if (hints.flags & PPosition) |
| 4606 | size_hints.flags |= PPosition; |
| 4607 | if (hints.flags & USPosition) |
| 4608 | size_hints.flags |= USPosition; |
| 4609 | if (hints.flags & USSize) |
| 4610 | size_hints.flags |= USSize; |
| 4611 | } |
| 4612 | |
| 4613 | #ifdef HAVE_X11R4 |
| 4614 | XSetWMNormalHints (x_current_display, window, &size_hints); |
| 4615 | #else |
| 4616 | XSetNormalHints (x_current_display, window, &size_hints); |
| 4617 | #endif |
| 4618 | } |
| 4619 | |
| 4620 | /* Used for IconicState or NormalState */ |
| 4621 | x_wm_set_window_state (f, state) |
| 4622 | struct frame *f; |
| 4623 | int state; |
| 4624 | { |
| 4625 | Window window = FRAME_X_WINDOW (f); |
| 4626 | |
| 4627 | f->display.x->wm_hints.flags |= StateHint; |
| 4628 | f->display.x->wm_hints.initial_state = state; |
| 4629 | |
| 4630 | XSetWMHints (x_current_display, window, &f->display.x->wm_hints); |
| 4631 | } |
| 4632 | |
| 4633 | x_wm_set_icon_pixmap (f, icon_pixmap) |
| 4634 | struct frame *f; |
| 4635 | Pixmap icon_pixmap; |
| 4636 | { |
| 4637 | Window window = FRAME_X_WINDOW (f); |
| 4638 | |
| 4639 | if (icon_pixmap) |
| 4640 | { |
| 4641 | f->display.x->wm_hints.icon_pixmap = icon_pixmap; |
| 4642 | f->display.x->wm_hints.flags |= IconPixmapHint; |
| 4643 | } |
| 4644 | else |
| 4645 | f->display.x->wm_hints.flags &= ~IconPixmapHint; |
| 4646 | |
| 4647 | XSetWMHints (x_current_display, window, &f->display.x->wm_hints); |
| 4648 | } |
| 4649 | |
| 4650 | x_wm_set_icon_position (f, icon_x, icon_y) |
| 4651 | struct frame *f; |
| 4652 | int icon_x, icon_y; |
| 4653 | { |
| 4654 | Window window = FRAME_X_WINDOW (f); |
| 4655 | |
| 4656 | f->display.x->wm_hints.flags |= IconPositionHint; |
| 4657 | f->display.x->wm_hints.icon_x = icon_x; |
| 4658 | f->display.x->wm_hints.icon_y = icon_y; |
| 4659 | |
| 4660 | XSetWMHints (x_current_display, window, &f->display.x->wm_hints); |
| 4661 | } |
| 4662 | |
| 4663 | \f |
| 4664 | /* Initialization. */ |
| 4665 | |
| 4666 | void |
| 4667 | x_term_init (display_name) |
| 4668 | char *display_name; |
| 4669 | { |
| 4670 | Lisp_Object frame; |
| 4671 | char *defaultvalue; |
| 4672 | #ifdef F_SETOWN |
| 4673 | extern int old_fcntl_owner; |
| 4674 | #endif /* ! defined (F_SETOWN) */ |
| 4675 | |
| 4676 | x_focus_frame = x_highlight_frame = 0; |
| 4677 | |
| 4678 | x_current_display = XOpenDisplay (display_name); |
| 4679 | if (x_current_display == 0) |
| 4680 | fatal ("X server %s not responding; check the DISPLAY environment variable or use \"-d\"\n", |
| 4681 | display_name); |
| 4682 | |
| 4683 | #ifdef HAVE_X11 |
| 4684 | { |
| 4685 | int hostname_size = 256; |
| 4686 | |
| 4687 | hostname = (char *) xmalloc (hostname_size); |
| 4688 | |
| 4689 | #if 0 |
| 4690 | XSetAfterFunction (x_current_display, x_trace_wire); |
| 4691 | #endif /* ! 0 */ |
| 4692 | |
| 4693 | /* Try to get the host name; if the buffer is too short, try |
| 4694 | again. Apparently, the only indication gethostname gives of |
| 4695 | whether the buffer was large enough is the presence or absence |
| 4696 | of a '\0' in the string. Eech. */ |
| 4697 | for (;;) |
| 4698 | { |
| 4699 | gethostname (hostname, hostname_size - 1); |
| 4700 | hostname[hostname_size - 1] = '\0'; |
| 4701 | |
| 4702 | /* Was the buffer large enough for gethostname to store the '\0'? */ |
| 4703 | if (strlen (hostname) < hostname_size - 1) |
| 4704 | break; |
| 4705 | |
| 4706 | hostname_size <<= 1; |
| 4707 | hostname = (char *) xrealloc (hostname, hostname_size); |
| 4708 | } |
| 4709 | x_id_name = (char *) xmalloc (XSTRING (Vinvocation_name)->size |
| 4710 | + strlen (hostname) |
| 4711 | + 2); |
| 4712 | sprintf (x_id_name, "%s@%s", XSTRING (Vinvocation_name)->data, hostname); |
| 4713 | } |
| 4714 | |
| 4715 | /* Figure out which modifier bits mean what. */ |
| 4716 | x_find_modifier_meanings (); |
| 4717 | |
| 4718 | /* Get the scroll bar cursor. */ |
| 4719 | x_vertical_scroll_bar_cursor |
| 4720 | = XCreateFontCursor (x_current_display, XC_sb_v_double_arrow); |
| 4721 | |
| 4722 | #if 0 |
| 4723 | /* Watch for PropertyNotify events on the root window; we use them |
| 4724 | to figure out when to invalidate our cache of the cut buffers. */ |
| 4725 | x_watch_cut_buffer_cache (); |
| 4726 | #endif |
| 4727 | |
| 4728 | if (ConnectionNumber (x_current_display) != 0) |
| 4729 | { |
| 4730 | dup2 (ConnectionNumber (x_current_display), 0); |
| 4731 | |
| 4732 | #ifndef SYSV_STREAMS |
| 4733 | /* Streams somehow keeps track of which descriptor number |
| 4734 | is being used to talk to X. So it is not safe to substitute |
| 4735 | descriptor 0. But it is safe to make descriptor 0 a copy of it. */ |
| 4736 | close (ConnectionNumber (x_current_display)); |
| 4737 | ConnectionNumber (x_current_display) = 0; /* Looks a little strange? |
| 4738 | * check the def of the macro; |
| 4739 | * it is a genuine lvalue */ |
| 4740 | #endif /* SYSV_STREAMS */ |
| 4741 | } |
| 4742 | |
| 4743 | #endif /* ! defined (HAVE_X11) */ |
| 4744 | |
| 4745 | #ifdef F_SETOWN |
| 4746 | old_fcntl_owner = fcntl (0, F_GETOWN, 0); |
| 4747 | #ifdef F_SETOWN_SOCK_NEG |
| 4748 | fcntl (0, F_SETOWN, -getpid ()); /* stdin is a socket here */ |
| 4749 | #else /* ! defined (F_SETOWN_SOCK_NEG) */ |
| 4750 | fcntl (0, F_SETOWN, getpid ()); |
| 4751 | #endif /* ! defined (F_SETOWN_SOCK_NEG) */ |
| 4752 | #endif /* ! defined (F_SETOWN) */ |
| 4753 | |
| 4754 | #ifdef SIGIO |
| 4755 | init_sigio (); |
| 4756 | #endif /* ! defined (SIGIO) */ |
| 4757 | |
| 4758 | /* Must use interrupt input because we cannot otherwise |
| 4759 | arrange for C-g to be noticed immediately. |
| 4760 | We cannot connect it to SIGINT. */ |
| 4761 | Fset_input_mode (Qt, Qnil, Qt, Qnil); |
| 4762 | |
| 4763 | expose_all_windows = 0; |
| 4764 | |
| 4765 | clear_frame_hook = XTclear_frame; |
| 4766 | clear_end_of_line_hook = XTclear_end_of_line; |
| 4767 | ins_del_lines_hook = XTins_del_lines; |
| 4768 | change_line_highlight_hook = XTchange_line_highlight; |
| 4769 | insert_glyphs_hook = XTinsert_glyphs; |
| 4770 | write_glyphs_hook = XTwrite_glyphs; |
| 4771 | delete_glyphs_hook = XTdelete_glyphs; |
| 4772 | ring_bell_hook = XTring_bell; |
| 4773 | reset_terminal_modes_hook = XTreset_terminal_modes; |
| 4774 | set_terminal_modes_hook = XTset_terminal_modes; |
| 4775 | update_begin_hook = XTupdate_begin; |
| 4776 | update_end_hook = XTupdate_end; |
| 4777 | set_terminal_window_hook = XTset_terminal_window; |
| 4778 | read_socket_hook = XTread_socket; |
| 4779 | cursor_to_hook = XTcursor_to; |
| 4780 | reassert_line_highlight_hook = XTreassert_line_highlight; |
| 4781 | mouse_position_hook = XTmouse_position; |
| 4782 | frame_rehighlight_hook = XTframe_rehighlight; |
| 4783 | frame_raise_lower_hook = XTframe_raise_lower; |
| 4784 | set_vertical_scroll_bar_hook = XTset_vertical_scroll_bar; |
| 4785 | condemn_scroll_bars_hook = XTcondemn_scroll_bars; |
| 4786 | redeem_scroll_bar_hook = XTredeem_scroll_bar; |
| 4787 | judge_scroll_bars_hook = XTjudge_scroll_bars; |
| 4788 | |
| 4789 | scroll_region_ok = 1; /* we'll scroll partial frames */ |
| 4790 | char_ins_del_ok = 0; /* just as fast to write the line */ |
| 4791 | line_ins_del_ok = 1; /* we'll just blt 'em */ |
| 4792 | fast_clear_end_of_line = 1; /* X does this well */ |
| 4793 | memory_below_frame = 0; /* we don't remember what scrolls |
| 4794 | off the bottom */ |
| 4795 | baud_rate = 19200; |
| 4796 | |
| 4797 | /* Note that there is no real way portable across R3/R4 to get the |
| 4798 | original error handler. */ |
| 4799 | XHandleError (x_error_quitter); |
| 4800 | XHandleIOError (x_io_error_quitter); |
| 4801 | |
| 4802 | /* Disable Window Change signals; they are handled by X events. */ |
| 4803 | #ifdef SIGWINCH |
| 4804 | signal (SIGWINCH, SIG_DFL); |
| 4805 | #endif /* ! defined (SIGWINCH) */ |
| 4806 | |
| 4807 | signal (SIGPIPE, x_connection_closed); |
| 4808 | } |
| 4809 | |
| 4810 | void |
| 4811 | syms_of_xterm () |
| 4812 | { |
| 4813 | staticpro (&last_mouse_scroll_bar); |
| 4814 | } |
| 4815 | #endif /* ! defined (HAVE_X11) */ |
| 4816 | #endif /* ! defined (HAVE_X_WINDOWS) */ |