| 1 | /* The emacs frame widget. |
| 2 | Copyright (C) 1992, 1993, 2000, 2001, 2002, 2003, 2004, |
| 3 | 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Emacs. |
| 6 | |
| 7 | GNU Emacs is free software: you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation, either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | GNU Emacs is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | /* Emacs 19 face widget ported by Fred Pierresteguy */ |
| 21 | |
| 22 | /* This file has been censored by the Communications Decency Act. |
| 23 | That law was passed under the guise of a ban on pornography, but |
| 24 | it bans far more than that. This file did not contain pornography, |
| 25 | but it was censored nonetheless. |
| 26 | |
| 27 | For information on US government censorship of the Internet, and |
| 28 | what you can do to bring back freedom of the press, see the web |
| 29 | site http://www.vtw.org/ |
| 30 | */ |
| 31 | |
| 32 | #include <config.h> |
| 33 | #include <stdio.h> |
| 34 | #include "lisp.h" |
| 35 | #include "xterm.h" |
| 36 | |
| 37 | #include "keyboard.h" |
| 38 | #include "frame.h" |
| 39 | #include "window.h" |
| 40 | |
| 41 | #include "dispextern.h" |
| 42 | #include "blockinput.h" |
| 43 | |
| 44 | #include <X11/StringDefs.h> |
| 45 | #include <X11/IntrinsicP.h> |
| 46 | #include <X11/cursorfont.h> |
| 47 | #include "widgetprv.h" |
| 48 | #include <X11/ObjectP.h> |
| 49 | #include <X11/Shell.h> |
| 50 | #include <X11/ShellP.h> |
| 51 | #include "../lwlib/lwlib.h" |
| 52 | |
| 53 | #include <signal.h> |
| 54 | #include "syssignal.h" |
| 55 | |
| 56 | #include "character.h" |
| 57 | #include "font.h" |
| 58 | |
| 59 | /* This sucks: this is the first default that x-faces.el tries. This won't |
| 60 | be used unless neither the "Emacs.EmacsFrame" resource nor the |
| 61 | "Emacs.EmacsFrame" resource is set; the frame |
| 62 | may have the wrong default size if this font doesn't exist, but some other |
| 63 | font that x-faces.el does. The workaround is to specify some font in the |
| 64 | resource database; I don't know a solution other than duplicating the font- |
| 65 | searching code from x-faces.el in this file. |
| 66 | |
| 67 | This also means that if "Emacs.EmacsFrame" is specified as a non- |
| 68 | existent font, then Xt is going to substitute "XtDefaultFont" for it, |
| 69 | which is a different size than this one. The solution for this is to |
| 70 | make x-faces.el try to use XtDefaultFont. The problem with that is that |
| 71 | XtDefaultFont is almost certainly variable-width. |
| 72 | |
| 73 | #### Perhaps we could have this code explicitly set XtDefaultFont to this? |
| 74 | */ |
| 75 | #define DEFAULT_FACE_FONT "-*-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-*" |
| 76 | |
| 77 | |
| 78 | static void EmacsFrameInitialize (/*Widget, Widget, ArgList, Cardinal * */); |
| 79 | static void EmacsFrameDestroy (/* Widget */); |
| 80 | static void EmacsFrameRealize (/* Widget, XtValueMask*, XSetWindowAttributes* */); |
| 81 | void EmacsFrameResize (/* Widget widget */); |
| 82 | static Boolean EmacsFrameSetValues (/* Widget, Widget, Widget, |
| 83 | ArgList, Cardinal * */); |
| 84 | static XtGeometryResult EmacsFrameQueryGeometry (/* Widget, XtWidgetGeometry*, |
| 85 | XtWidgetGeometry* */); |
| 86 | |
| 87 | |
| 88 | #undef XtOffset |
| 89 | #define XtOffset(p_type,field) \ |
| 90 | ((Cardinal) (((char *) (&(((p_type)0)->field))) - ((char *)0))) |
| 91 | #define offset(field) XtOffset(EmacsFrame, emacs_frame.field) |
| 92 | |
| 93 | static XtResource resources[] = { |
| 94 | {XtNgeometry, XtCGeometry, XtRString, sizeof(String), |
| 95 | offset (geometry), XtRString, (XtPointer) 0}, |
| 96 | {XtNiconic, XtCIconic, XtRBoolean, sizeof(Boolean), |
| 97 | offset (iconic), XtRImmediate, (XtPointer) False}, |
| 98 | |
| 99 | {XtNemacsFrame, XtCEmacsFrame, XtRPointer, sizeof (XtPointer), |
| 100 | offset (frame), XtRImmediate, 0}, |
| 101 | |
| 102 | {XtNminibuffer, XtCMinibuffer, XtRInt, sizeof (int), |
| 103 | offset (minibuffer), XtRImmediate, (XtPointer)0}, |
| 104 | {XtNunsplittable, XtCUnsplittable, XtRBoolean, sizeof (Boolean), |
| 105 | offset (unsplittable), XtRImmediate, (XtPointer)0}, |
| 106 | {XtNinternalBorderWidth, XtCInternalBorderWidth, XtRInt, sizeof (int), |
| 107 | offset (internal_border_width), XtRImmediate, (XtPointer)4}, |
| 108 | {XtNinterline, XtCInterline, XtRInt, sizeof (int), |
| 109 | offset (interline), XtRImmediate, (XtPointer)0}, |
| 110 | {XtNfont, XtCFont, XtRFontStruct, sizeof(struct font *), |
| 111 | offset(font),XtRString, DEFAULT_FACE_FONT}, |
| 112 | {XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel), |
| 113 | offset(foreground_pixel), XtRString, "XtDefaultForeground"}, |
| 114 | {XtNcursorColor, XtCForeground, XtRPixel, sizeof(Pixel), |
| 115 | offset(cursor_color), XtRString, "XtDefaultForeground"}, |
| 116 | {XtNbarCursor, XtCBarCursor, XtRBoolean, sizeof (Boolean), |
| 117 | offset (bar_cursor), XtRImmediate, (XtPointer)0}, |
| 118 | {XtNvisualBell, XtCVisualBell, XtRBoolean, sizeof (Boolean), |
| 119 | offset (visual_bell), XtRImmediate, (XtPointer)0}, |
| 120 | {XtNbellVolume, XtCBellVolume, XtRInt, sizeof (int), |
| 121 | offset (bell_volume), XtRImmediate, (XtPointer)0}, |
| 122 | }; |
| 123 | |
| 124 | #undef offset |
| 125 | |
| 126 | /* |
| 127 | static XtActionsRec |
| 128 | emacsFrameActionsTable [] = { |
| 129 | {"keypress", key_press}, |
| 130 | {"focus_in", emacs_frame_focus_handler}, |
| 131 | {"focus_out", emacs_frame_focus_handler}, |
| 132 | }; |
| 133 | |
| 134 | static char |
| 135 | emacsFrameTranslations [] = "\ |
| 136 | <KeyPress>: keypress()\n\ |
| 137 | <FocusIn>: focus_in()\n\ |
| 138 | <FocusOut>: focus_out()\n\ |
| 139 | "; |
| 140 | */ |
| 141 | |
| 142 | EmacsFrameClassRec emacsFrameClassRec = { |
| 143 | { /* core fields */ |
| 144 | /* superclass */ &widgetClassRec, |
| 145 | /* class_name */ "EmacsFrame", |
| 146 | /* widget_size */ sizeof(EmacsFrameRec), |
| 147 | /* class_initialize */ 0, |
| 148 | /* class_part_initialize */ 0, |
| 149 | /* class_inited */ FALSE, |
| 150 | /* initialize */ EmacsFrameInitialize, |
| 151 | /* initialize_hook */ 0, |
| 152 | /* realize */ EmacsFrameRealize, |
| 153 | /* actions */ 0, /*emacsFrameActionsTable*/ |
| 154 | /* num_actions */ 0, /*XtNumber (emacsFrameActionsTable)*/ |
| 155 | /* resources */ resources, |
| 156 | /* resource_count */ XtNumber(resources), |
| 157 | /* xrm_class */ NULLQUARK, |
| 158 | /* compress_motion */ TRUE, |
| 159 | /* compress_exposure */ TRUE, |
| 160 | /* compress_enterleave */ TRUE, |
| 161 | /* visible_interest */ FALSE, |
| 162 | /* destroy */ EmacsFrameDestroy, |
| 163 | /* resize */ EmacsFrameResize, |
| 164 | /* expose */ XtInheritExpose, |
| 165 | /* set_values */ EmacsFrameSetValues, |
| 166 | /* set_values_hook */ 0, |
| 167 | /* set_values_almost */ XtInheritSetValuesAlmost, |
| 168 | /* get_values_hook */ 0, |
| 169 | /* accept_focus */ XtInheritAcceptFocus, |
| 170 | /* version */ XtVersion, |
| 171 | /* callback_private */ 0, |
| 172 | /* tm_table */ 0, /*emacsFrameTranslations*/ |
| 173 | /* query_geometry */ EmacsFrameQueryGeometry, |
| 174 | /* display_accelerator */ XtInheritDisplayAccelerator, |
| 175 | /* extension */ 0 |
| 176 | } |
| 177 | }; |
| 178 | |
| 179 | WidgetClass emacsFrameClass = (WidgetClass) &emacsFrameClassRec; |
| 180 | |
| 181 | static void |
| 182 | get_default_char_pixel_size (ew, pixel_width, pixel_height) |
| 183 | EmacsFrame ew; |
| 184 | int* pixel_width; |
| 185 | int* pixel_height; |
| 186 | { |
| 187 | struct frame* f = ew->emacs_frame.frame; |
| 188 | *pixel_width = FRAME_COLUMN_WIDTH (f); |
| 189 | *pixel_height = FRAME_LINE_HEIGHT (f); |
| 190 | } |
| 191 | |
| 192 | static void |
| 193 | pixel_to_char_size (ew, pixel_width, pixel_height, char_width, char_height) |
| 194 | EmacsFrame ew; |
| 195 | Dimension pixel_width; |
| 196 | Dimension pixel_height; |
| 197 | int* char_width; |
| 198 | int* char_height; |
| 199 | { |
| 200 | struct frame* f = ew->emacs_frame.frame; |
| 201 | *char_width = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (f, (int) pixel_width); |
| 202 | *char_height = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (f, (int) pixel_height); |
| 203 | } |
| 204 | |
| 205 | static void |
| 206 | char_to_pixel_size (ew, char_width, char_height, pixel_width, pixel_height) |
| 207 | EmacsFrame ew; |
| 208 | int char_width; |
| 209 | int char_height; |
| 210 | Dimension* pixel_width; |
| 211 | Dimension* pixel_height; |
| 212 | { |
| 213 | struct frame* f = ew->emacs_frame.frame; |
| 214 | *pixel_width = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, char_width); |
| 215 | *pixel_height = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, char_height); |
| 216 | } |
| 217 | |
| 218 | static void |
| 219 | round_size_to_char (ew, in_width, in_height, out_width, out_height) |
| 220 | EmacsFrame ew; |
| 221 | Dimension in_width; |
| 222 | Dimension in_height; |
| 223 | Dimension* out_width; |
| 224 | Dimension* out_height; |
| 225 | { |
| 226 | int char_width; |
| 227 | int char_height; |
| 228 | pixel_to_char_size (ew, in_width, in_height, &char_width, &char_height); |
| 229 | char_to_pixel_size (ew, char_width, char_height, out_width, out_height); |
| 230 | } |
| 231 | |
| 232 | static Widget |
| 233 | get_wm_shell (w) |
| 234 | Widget w; |
| 235 | { |
| 236 | Widget wmshell; |
| 237 | |
| 238 | for (wmshell = XtParent (w); |
| 239 | wmshell && !XtIsWMShell (wmshell); |
| 240 | wmshell = XtParent (wmshell)); |
| 241 | |
| 242 | return wmshell; |
| 243 | } |
| 244 | |
| 245 | #if 0 /* Currently not used. */ |
| 246 | |
| 247 | static void |
| 248 | mark_shell_size_user_specified (wmshell) |
| 249 | Widget wmshell; |
| 250 | { |
| 251 | if (! XtIsWMShell (wmshell)) abort (); |
| 252 | /* This is kind of sleazy, but I can't see how else to tell it to make it |
| 253 | mark the WM_SIZE_HINTS size as user specified when appropriate. */ |
| 254 | ((WMShellWidget) wmshell)->wm.size_hints.flags |= USSize; |
| 255 | } |
| 256 | |
| 257 | #endif |
| 258 | |
| 259 | |
| 260 | /* Can't have static frame locals because of some broken compilers. |
| 261 | Normally, initializing a variable like this doesn't work in emacs, |
| 262 | but it's ok in this file because it must come after lastfile (and |
| 263 | thus have its data not go into text space) because Xt needs to |
| 264 | write to initialized data objects too. |
| 265 | */ |
| 266 | #if 0 |
| 267 | static Boolean first_frame_p = True; |
| 268 | #endif |
| 269 | |
| 270 | static void |
| 271 | set_frame_size (ew) |
| 272 | EmacsFrame ew; |
| 273 | { |
| 274 | /* The widget hierarchy is |
| 275 | |
| 276 | argv[0] emacsShell pane Frame-NAME |
| 277 | ApplicationShell EmacsShell Paned EmacsFrame |
| 278 | |
| 279 | We accept geometry specs in this order: |
| 280 | |
| 281 | *Frame-NAME.geometry |
| 282 | *EmacsFrame.geometry |
| 283 | Emacs.geometry |
| 284 | |
| 285 | Other possibilities for widget hierarchies might be |
| 286 | |
| 287 | argv[0] frame pane Frame-NAME |
| 288 | ApplicationShell EmacsShell Paned EmacsFrame |
| 289 | or |
| 290 | argv[0] Frame-NAME pane Frame-NAME |
| 291 | ApplicationShell EmacsShell Paned EmacsFrame |
| 292 | or |
| 293 | argv[0] Frame-NAME pane emacsTextPane |
| 294 | ApplicationShell EmacsFrame Paned EmacsTextPane |
| 295 | |
| 296 | With the current setup, the text-display-area is the part which is |
| 297 | an emacs "frame", since that's the only part managed by emacs proper |
| 298 | (the menubar and the parent of the menubar and all that sort of thing |
| 299 | are managed by lwlib.) |
| 300 | |
| 301 | The EmacsShell widget is simply a replacement for the Shell widget |
| 302 | which is able to deal with using an externally-supplied window instead |
| 303 | of always creating its own. It is not actually emacs specific, and |
| 304 | should possibly have class "Shell" instead of "EmacsShell" to simplify |
| 305 | the resources. |
| 306 | |
| 307 | */ |
| 308 | |
| 309 | /* Hairily merged geometry */ |
| 310 | unsigned int w = FRAME_COLS (ew->emacs_frame.frame); |
| 311 | unsigned int h = FRAME_LINES (ew->emacs_frame.frame); |
| 312 | |
| 313 | Widget wmshell = get_wm_shell ((Widget) ew); |
| 314 | /* Each Emacs shell is now independent and top-level. */ |
| 315 | |
| 316 | if (! XtIsSubclass (wmshell, shellWidgetClass)) abort (); |
| 317 | |
| 318 | /* We don't need this for the moment. The geometry is computed in |
| 319 | xfns.c. */ |
| 320 | #if 0 |
| 321 | /* If the EmacsFrame doesn't have a geometry but the shell does, |
| 322 | treat that as the geometry of the frame. (Is this bogus? |
| 323 | I'm not sure.) */ |
| 324 | if (ew->emacs_frame.geometry == 0) |
| 325 | XtVaGetValues (wmshell, XtNgeometry, &ew->emacs_frame.geometry, NULL); |
| 326 | |
| 327 | /* If the Shell is iconic, then the EmacsFrame is iconic. (Is |
| 328 | this bogus? I'm not sure.) */ |
| 329 | if (!ew->emacs_frame.iconic) |
| 330 | XtVaGetValues (wmshell, XtNiconic, &ew->emacs_frame.iconic, NULL); |
| 331 | |
| 332 | |
| 333 | { |
| 334 | char *geom = 0; |
| 335 | XtVaGetValues (app_shell, XtNgeometry, &geom, NULL); |
| 336 | if (geom) |
| 337 | app_flags = XParseGeometry (geom, &app_x, &app_y, &app_w, &app_h); |
| 338 | } |
| 339 | |
| 340 | if (ew->emacs_frame.geometry) |
| 341 | frame_flags = XParseGeometry (ew->emacs_frame.geometry, |
| 342 | &frame_x, &frame_y, |
| 343 | &frame_w, &frame_h); |
| 344 | |
| 345 | if (first_frame_p) |
| 346 | { |
| 347 | /* If this is the first frame created: |
| 348 | ==================================== |
| 349 | |
| 350 | - Use the ApplicationShell's size/position, if specified. |
| 351 | (This is "Emacs.geometry", or the "-geometry" command line arg.) |
| 352 | - Else use the EmacsFrame's size/position. |
| 353 | (This is "*Frame-NAME.geometry") |
| 354 | |
| 355 | - If the AppShell is iconic, the frame should be iconic. |
| 356 | |
| 357 | AppShell comes first so that -geometry always applies to the first |
| 358 | frame created, even if there is an "every frame" entry in the |
| 359 | resource database. |
| 360 | */ |
| 361 | if (app_flags & (XValue | YValue)) |
| 362 | { |
| 363 | x = app_x; y = app_y; |
| 364 | flags |= (app_flags & (XValue | YValue | XNegative | YNegative)); |
| 365 | } |
| 366 | else if (frame_flags & (XValue | YValue)) |
| 367 | { |
| 368 | x = frame_x; y = frame_y; |
| 369 | flags |= (frame_flags & (XValue | YValue | XNegative | YNegative)); |
| 370 | } |
| 371 | |
| 372 | if (app_flags & (WidthValue | HeightValue)) |
| 373 | { |
| 374 | w = app_w; h = app_h; |
| 375 | flags |= (app_flags & (WidthValue | HeightValue)); |
| 376 | } |
| 377 | else if (frame_flags & (WidthValue | HeightValue)) |
| 378 | { |
| 379 | w = frame_w; h = frame_h; |
| 380 | flags |= (frame_flags & (WidthValue | HeightValue)); |
| 381 | } |
| 382 | |
| 383 | /* If the AppShell is iconic, then the EmacsFrame is iconic. */ |
| 384 | if (!ew->emacs_frame.iconic) |
| 385 | XtVaGetValues (app_shell, XtNiconic, &ew->emacs_frame.iconic, NULL); |
| 386 | |
| 387 | first_frame_p = False; |
| 388 | } |
| 389 | else |
| 390 | { |
| 391 | /* If this is not the first frame created: |
| 392 | ======================================== |
| 393 | |
| 394 | - use the EmacsFrame's size/position if specified |
| 395 | - Otherwise, use the ApplicationShell's size, but not position. |
| 396 | |
| 397 | So that means that one can specify the position of the first frame |
| 398 | with "Emacs.geometry" or `-geometry'; but can only specify the |
| 399 | position of subsequent frames with "*Frame-NAME.geometry". |
| 400 | |
| 401 | AppShell comes second so that -geometry does not apply to subsequent |
| 402 | frames when there is an "every frame" entry in the resource db, |
| 403 | but does apply to the first frame. |
| 404 | */ |
| 405 | if (frame_flags & (XValue | YValue)) |
| 406 | { |
| 407 | x = frame_x; y = frame_y; |
| 408 | flags |= (frame_flags & (XValue | YValue | XNegative | YNegative)); |
| 409 | } |
| 410 | |
| 411 | if (frame_flags & (WidthValue | HeightValue)) |
| 412 | { |
| 413 | w = frame_w; h = frame_h; |
| 414 | flags |= (frame_flags & (WidthValue | HeightValue)); |
| 415 | } |
| 416 | else if (app_flags & (WidthValue | HeightValue)) |
| 417 | { |
| 418 | w = app_w; |
| 419 | h = app_h; |
| 420 | flags |= (app_flags & (WidthValue | HeightValue)); |
| 421 | } |
| 422 | } |
| 423 | #endif /* 0 */ |
| 424 | { |
| 425 | struct frame *f = ew->emacs_frame.frame; |
| 426 | Dimension pixel_width, pixel_height; |
| 427 | |
| 428 | /* Take into account the size of the scrollbar. Always use the |
| 429 | number of columns occupied by the scroll bar here otherwise we |
| 430 | might end up with a frame width that is not a multiple of the |
| 431 | frame's character width which is bad for vertically split |
| 432 | windows. */ |
| 433 | f->scroll_bar_actual_width |
| 434 | = FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f); |
| 435 | |
| 436 | compute_fringe_widths (f, 0); |
| 437 | |
| 438 | #if 0 /* This can run Lisp code, and it is dangerous to give |
| 439 | out the frame to Lisp code before it officially exists. |
| 440 | This is handled in Fx_create_frame so not needed here. */ |
| 441 | change_frame_size (f, h, w, 1, 0, 0); |
| 442 | #endif |
| 443 | char_to_pixel_size (ew, w, h, &pixel_width, &pixel_height); |
| 444 | ew->core.width = pixel_width; |
| 445 | ew->core.height = pixel_height; |
| 446 | |
| 447 | #if 0 /* xfns.c takes care of this now. */ |
| 448 | /* If a position was specified, assign it to the shell widget. |
| 449 | (Else WM won't do anything with it.) |
| 450 | */ |
| 451 | if (flags & (XValue | YValue)) |
| 452 | { |
| 453 | /* the tricky things with the sign is to make sure that |
| 454 | -0 is printed -0. */ |
| 455 | int len; |
| 456 | char *tem; |
| 457 | sprintf (shell_position, "=%c%d%c%d", |
| 458 | flags & XNegative ? '-' : '+', x < 0 ? -x : x, |
| 459 | flags & YNegative ? '-' : '+', y < 0 ? -y : y); |
| 460 | len = strlen (shell_position) + 1; |
| 461 | tem = (char *) xmalloc (len); |
| 462 | strncpy (tem, shell_position, len); |
| 463 | XtVaSetValues (wmshell, XtNgeometry, tem, NULL); |
| 464 | } |
| 465 | else if (flags & (WidthValue | HeightValue)) |
| 466 | { |
| 467 | int len; |
| 468 | char *tem; |
| 469 | sprintf (shell_position, "=%dx%d", pixel_width, pixel_height); |
| 470 | len = strlen (shell_position) + 1; |
| 471 | tem = (char *) xmalloc (len); |
| 472 | strncpy (tem, shell_position, len); |
| 473 | XtVaSetValues (wmshell, XtNgeometry, tem, NULL); |
| 474 | } |
| 475 | |
| 476 | /* If the geometry spec we're using has W/H components, mark the size |
| 477 | in the WM_SIZE_HINTS as user specified. */ |
| 478 | if (flags & (WidthValue | HeightValue)) |
| 479 | mark_shell_size_user_specified (wmshell); |
| 480 | |
| 481 | /* Also assign the iconic status of the frame to the Shell, so that |
| 482 | the WM sees it. */ |
| 483 | XtVaSetValues (wmshell, XtNiconic, ew->emacs_frame.iconic, NULL); |
| 484 | #endif /* 0 */ |
| 485 | } |
| 486 | } |
| 487 | |
| 488 | /* Nonzero tells update_wm_hints not to do anything |
| 489 | (the caller should call update_wm_hints explicitly later.) */ |
| 490 | int update_hints_inhibit; |
| 491 | |
| 492 | static void |
| 493 | update_wm_hints (ew) |
| 494 | EmacsFrame ew; |
| 495 | { |
| 496 | Widget wmshell = get_wm_shell ((Widget)ew); |
| 497 | int cw; |
| 498 | int ch; |
| 499 | Dimension rounded_width; |
| 500 | Dimension rounded_height; |
| 501 | int char_width; |
| 502 | int char_height; |
| 503 | int base_width; |
| 504 | int base_height; |
| 505 | int min_rows = 0, min_cols = 0; |
| 506 | |
| 507 | if (update_hints_inhibit) |
| 508 | return; |
| 509 | |
| 510 | #if 0 |
| 511 | check_frame_size (ew->emacs_frame.frame, &min_rows, &min_cols); |
| 512 | #endif |
| 513 | |
| 514 | pixel_to_char_size (ew, ew->core.width, ew->core.height, |
| 515 | &char_width, &char_height); |
| 516 | char_to_pixel_size (ew, char_width, char_height, |
| 517 | &rounded_width, &rounded_height); |
| 518 | get_default_char_pixel_size (ew, &cw, &ch); |
| 519 | |
| 520 | base_width = (wmshell->core.width - ew->core.width |
| 521 | + (rounded_width - (char_width * cw))); |
| 522 | base_height = (wmshell->core.height - ew->core.height |
| 523 | + (rounded_height - (char_height * ch))); |
| 524 | |
| 525 | /* This is kind of sleazy, but I can't see how else to tell it to |
| 526 | make it mark the WM_SIZE_HINTS size as user specified. |
| 527 | */ |
| 528 | /* ((WMShellWidget) wmshell)->wm.size_hints.flags |= USSize;*/ |
| 529 | |
| 530 | XtVaSetValues (wmshell, |
| 531 | XtNbaseWidth, (XtArgVal) base_width, |
| 532 | XtNbaseHeight, (XtArgVal) base_height, |
| 533 | XtNwidthInc, (XtArgVal) cw, |
| 534 | XtNheightInc, (XtArgVal) ch, |
| 535 | XtNminWidth, (XtArgVal) (base_width + min_cols * cw), |
| 536 | XtNminHeight, (XtArgVal) (base_height + min_rows * ch), |
| 537 | NULL); |
| 538 | } |
| 539 | |
| 540 | #if 0 |
| 541 | |
| 542 | static void |
| 543 | create_frame_gcs (ew) |
| 544 | EmacsFrame ew; |
| 545 | { |
| 546 | struct frame *s = ew->emacs_frame.frame; |
| 547 | |
| 548 | s->output_data.x->normal_gc |
| 549 | = XCreateGC (XtDisplay (ew), RootWindowOfScreen (XtScreen (ew)), |
| 550 | (unsigned long)0, (XGCValues *)0); |
| 551 | s->output_data.x->reverse_gc |
| 552 | = XCreateGC (XtDisplay (ew), RootWindowOfScreen (XtScreen (ew)), |
| 553 | (unsigned long)0, (XGCValues *)0); |
| 554 | s->output_data.x->cursor_gc |
| 555 | = XCreateGC (XtDisplay (ew), RootWindowOfScreen (XtScreen (ew)), |
| 556 | (unsigned long)0, (XGCValues *)0); |
| 557 | s->output_data.x->black_relief.gc = 0; |
| 558 | s->output_data.x->white_relief.gc = 0; |
| 559 | } |
| 560 | |
| 561 | #endif /* 0 */ |
| 562 | |
| 563 | static char setup_frame_cursor_bits[] = |
| 564 | { |
| 565 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 566 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 567 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 568 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 569 | }; |
| 570 | |
| 571 | static void |
| 572 | setup_frame_gcs (ew) |
| 573 | EmacsFrame ew; |
| 574 | { |
| 575 | XGCValues gc_values; |
| 576 | struct frame* s = ew->emacs_frame.frame; |
| 577 | Pixmap blank_stipple, blank_tile; |
| 578 | unsigned long valuemask = (GCForeground | GCBackground | GCGraphicsExposures |
| 579 | | GCStipple | GCTile); |
| 580 | Lisp_Object font; |
| 581 | |
| 582 | XSETFONT (font, ew->emacs_frame.font); |
| 583 | font = Ffont_xlfd_name (font, Qnil); |
| 584 | if (STRINGP (font)) |
| 585 | { |
| 586 | XFontStruct *xfont = XLoadQueryFont (FRAME_X_DISPLAY_INFO (s)->display, |
| 587 | SDATA (font)); |
| 588 | if (xfont) |
| 589 | { |
| 590 | gc_values.font = xfont->fid; |
| 591 | valuemask |= GCFont; |
| 592 | } |
| 593 | } |
| 594 | |
| 595 | /* We have to initialize all of our GCs to have a stipple/tile, otherwise |
| 596 | XGetGCValues returns uninitialized data when we query the stipple |
| 597 | (instead of None or something sensible) and it makes things hard. |
| 598 | |
| 599 | This should be fixed for real by not querying the GCs but instead having |
| 600 | some GC-based cache instead of the current face-based cache which doesn't |
| 601 | effectively cache all of the GC settings we need to use. |
| 602 | */ |
| 603 | |
| 604 | blank_stipple |
| 605 | = XCreateBitmapFromData (XtDisplay (ew), |
| 606 | RootWindowOfScreen (XtScreen (ew)), |
| 607 | setup_frame_cursor_bits, 2, 2); |
| 608 | |
| 609 | /* use fg = 0, bg = 1 below, but it's irrelevant since this pixmap should |
| 610 | never actually get used as a background tile! |
| 611 | */ |
| 612 | blank_tile |
| 613 | = XCreatePixmapFromBitmapData (XtDisplay(ew), |
| 614 | RootWindowOfScreen (XtScreen (ew)), |
| 615 | setup_frame_cursor_bits, 2, 2, |
| 616 | (unsigned long)0, (unsigned long)1, |
| 617 | ew->core.depth); |
| 618 | |
| 619 | /* Normal video */ |
| 620 | gc_values.foreground = ew->emacs_frame.foreground_pixel; |
| 621 | gc_values.background = ew->core.background_pixel; |
| 622 | gc_values.graphics_exposures = False; |
| 623 | gc_values.stipple = blank_stipple; |
| 624 | gc_values.tile = blank_tile; |
| 625 | XChangeGC (XtDisplay (ew), s->output_data.x->normal_gc, |
| 626 | valuemask, &gc_values); |
| 627 | |
| 628 | /* Reverse video style. */ |
| 629 | gc_values.foreground = ew->core.background_pixel; |
| 630 | gc_values.background = ew->emacs_frame.foreground_pixel; |
| 631 | gc_values.graphics_exposures = False; |
| 632 | gc_values.stipple = blank_stipple; |
| 633 | gc_values.tile = blank_tile; |
| 634 | XChangeGC (XtDisplay (ew), s->output_data.x->reverse_gc, |
| 635 | valuemask, &gc_values); |
| 636 | |
| 637 | /* Cursor has to have an empty stipple. */ |
| 638 | gc_values.foreground = ew->core.background_pixel; |
| 639 | gc_values.background = ew->emacs_frame.cursor_color; |
| 640 | gc_values.graphics_exposures = False; |
| 641 | gc_values.tile = blank_tile; |
| 642 | gc_values.stipple |
| 643 | = XCreateBitmapFromData (XtDisplay (ew), |
| 644 | RootWindowOfScreen (XtScreen (ew)), |
| 645 | setup_frame_cursor_bits, 16, 16); |
| 646 | XChangeGC (XtDisplay (ew), s->output_data.x->cursor_gc, |
| 647 | valuemask, &gc_values); |
| 648 | } |
| 649 | |
| 650 | static void |
| 651 | update_various_frame_slots (ew) |
| 652 | EmacsFrame ew; |
| 653 | { |
| 654 | struct frame *f = ew->emacs_frame.frame; |
| 655 | struct x_output *x = f->output_data.x; |
| 656 | FRAME_PIXEL_HEIGHT (f) = ew->core.height + x->menubar_height; |
| 657 | FRAME_PIXEL_WIDTH (f) = ew->core.width; |
| 658 | f->internal_border_width = ew->emacs_frame.internal_border_width; |
| 659 | |
| 660 | } |
| 661 | |
| 662 | static void |
| 663 | update_from_various_frame_slots (ew) |
| 664 | EmacsFrame ew; |
| 665 | { |
| 666 | struct frame *f = ew->emacs_frame.frame; |
| 667 | struct x_output *x = f->output_data.x; |
| 668 | ew->core.height = FRAME_PIXEL_HEIGHT (f) - x->menubar_height; |
| 669 | ew->core.width = FRAME_PIXEL_WIDTH (f); |
| 670 | ew->core.background_pixel = FRAME_BACKGROUND_PIXEL (f); |
| 671 | ew->emacs_frame.internal_border_width = f->internal_border_width; |
| 672 | ew->emacs_frame.font = x->font; |
| 673 | ew->emacs_frame.foreground_pixel = FRAME_FOREGROUND_PIXEL (f); |
| 674 | ew->emacs_frame.cursor_color = x->cursor_pixel; |
| 675 | ew->core.border_pixel = x->border_pixel; |
| 676 | } |
| 677 | |
| 678 | static void |
| 679 | EmacsFrameInitialize (request, new, dum1, dum2) |
| 680 | Widget request; |
| 681 | Widget new; |
| 682 | ArgList dum1; |
| 683 | Cardinal *dum2; |
| 684 | { |
| 685 | EmacsFrame ew = (EmacsFrame)new; |
| 686 | |
| 687 | if (!ew->emacs_frame.frame) |
| 688 | { |
| 689 | fprintf (stderr, |
| 690 | "can't create an emacs frame widget without a frame\n"); |
| 691 | exit (1); |
| 692 | } |
| 693 | |
| 694 | update_from_various_frame_slots (ew); |
| 695 | set_frame_size (ew); |
| 696 | } |
| 697 | |
| 698 | |
| 699 | static void |
| 700 | EmacsFrameRealize (widget, mask, attrs) |
| 701 | Widget widget; |
| 702 | XtValueMask *mask; |
| 703 | XSetWindowAttributes *attrs; |
| 704 | { |
| 705 | EmacsFrame ew = (EmacsFrame)widget; |
| 706 | |
| 707 | /* This used to contain SubstructureRedirectMask, but this turns out |
| 708 | to be a problem with XIM on Solaris, and events from that mask |
| 709 | don't seem to be used. Let's check that. */ |
| 710 | attrs->event_mask = (STANDARD_EVENT_SET |
| 711 | | PropertyChangeMask |
| 712 | | SubstructureNotifyMask); |
| 713 | *mask |= CWEventMask; |
| 714 | XtCreateWindow (widget, InputOutput, (Visual *)CopyFromParent, *mask, |
| 715 | attrs); |
| 716 | update_wm_hints (ew); |
| 717 | } |
| 718 | |
| 719 | extern void free_frame_faces (/* struct frame * */); |
| 720 | |
| 721 | static void |
| 722 | EmacsFrameDestroy (widget) |
| 723 | Widget widget; |
| 724 | { |
| 725 | EmacsFrame ew = (EmacsFrame) widget; |
| 726 | struct frame* s = ew->emacs_frame.frame; |
| 727 | |
| 728 | if (! s) abort (); |
| 729 | if (! s->output_data.x) abort (); |
| 730 | |
| 731 | BLOCK_INPUT; |
| 732 | x_free_gcs (s); |
| 733 | if (s->output_data.x->white_relief.gc) |
| 734 | XFreeGC (XtDisplay (widget), s->output_data.x->white_relief.gc); |
| 735 | if (s->output_data.x->black_relief.gc) |
| 736 | XFreeGC (XtDisplay (widget), s->output_data.x->black_relief.gc); |
| 737 | UNBLOCK_INPUT; |
| 738 | } |
| 739 | |
| 740 | void |
| 741 | EmacsFrameResize (widget) |
| 742 | Widget widget; |
| 743 | { |
| 744 | EmacsFrame ew = (EmacsFrame)widget; |
| 745 | struct frame *f = ew->emacs_frame.frame; |
| 746 | int columns; |
| 747 | int rows; |
| 748 | |
| 749 | pixel_to_char_size (ew, ew->core.width, ew->core.height, &columns, &rows); |
| 750 | change_frame_size (f, rows, columns, 0, 1, 0); |
| 751 | update_wm_hints (ew); |
| 752 | update_various_frame_slots (ew); |
| 753 | |
| 754 | cancel_mouse_face (f); |
| 755 | } |
| 756 | |
| 757 | static Boolean |
| 758 | EmacsFrameSetValues (cur_widget, req_widget, new_widget, dum1, dum2) |
| 759 | Widget cur_widget; |
| 760 | Widget req_widget; |
| 761 | Widget new_widget; |
| 762 | ArgList dum1; |
| 763 | Cardinal *dum2; |
| 764 | { |
| 765 | EmacsFrame cur = (EmacsFrame)cur_widget; |
| 766 | EmacsFrame new = (EmacsFrame)new_widget; |
| 767 | |
| 768 | Boolean needs_a_refresh = False; |
| 769 | Boolean has_to_recompute_size; |
| 770 | Boolean has_to_recompute_gcs; |
| 771 | Boolean has_to_update_hints; |
| 772 | |
| 773 | int char_width, char_height; |
| 774 | Dimension pixel_width; |
| 775 | Dimension pixel_height; |
| 776 | |
| 777 | has_to_recompute_gcs = (cur->emacs_frame.font != new->emacs_frame.font |
| 778 | || (cur->emacs_frame.foreground_pixel |
| 779 | != new->emacs_frame.foreground_pixel) |
| 780 | || (cur->core.background_pixel |
| 781 | != new->core.background_pixel) |
| 782 | ); |
| 783 | |
| 784 | has_to_recompute_size = (cur->emacs_frame.font != new->emacs_frame.font |
| 785 | && cur->core.width == new->core.width |
| 786 | && cur->core.height == new->core.height); |
| 787 | |
| 788 | has_to_update_hints = (cur->emacs_frame.font != new->emacs_frame.font); |
| 789 | |
| 790 | if (has_to_recompute_gcs) |
| 791 | { |
| 792 | setup_frame_gcs (new); |
| 793 | needs_a_refresh = True; |
| 794 | } |
| 795 | |
| 796 | if (has_to_recompute_size) |
| 797 | { |
| 798 | pixel_width = new->core.width; |
| 799 | pixel_height = new->core.height; |
| 800 | pixel_to_char_size (new, pixel_width, pixel_height, &char_width, |
| 801 | &char_height); |
| 802 | char_to_pixel_size (new, char_width, char_height, &pixel_width, |
| 803 | &pixel_height); |
| 804 | new->core.width = pixel_width; |
| 805 | new->core.height = pixel_height; |
| 806 | |
| 807 | change_frame_size (new->emacs_frame.frame, char_height, char_width, |
| 808 | 1, 0, 0); |
| 809 | needs_a_refresh = True; |
| 810 | } |
| 811 | |
| 812 | if (has_to_update_hints) |
| 813 | update_wm_hints (new); |
| 814 | |
| 815 | update_various_frame_slots (new); |
| 816 | |
| 817 | /* #### This doesn't work, I haven't been able to find ANY kludge that |
| 818 | will let (x-create-frame '((iconic . t))) work. It seems that changes |
| 819 | to wm_shell's iconic slot have no effect after it has been realized, |
| 820 | and calling XIconifyWindow doesn't work either (even though the window |
| 821 | has been created.) Perhaps there is some property we could smash |
| 822 | directly, but I'm sick of this for now. |
| 823 | */ |
| 824 | if (cur->emacs_frame.iconic != new->emacs_frame.iconic) |
| 825 | { |
| 826 | Widget wmshell = get_wm_shell ((Widget) cur); |
| 827 | XtVaSetValues (wmshell, XtNiconic, |
| 828 | (XtArgVal) new->emacs_frame.iconic, NULL); |
| 829 | } |
| 830 | |
| 831 | return needs_a_refresh; |
| 832 | } |
| 833 | |
| 834 | static XtGeometryResult |
| 835 | EmacsFrameQueryGeometry (widget, request, result) |
| 836 | Widget widget; |
| 837 | XtWidgetGeometry* request; |
| 838 | XtWidgetGeometry* result; |
| 839 | { |
| 840 | EmacsFrame ew = (EmacsFrame)widget; |
| 841 | |
| 842 | int mask = request->request_mode; |
| 843 | Dimension ok_width, ok_height; |
| 844 | |
| 845 | if (mask & (CWWidth | CWHeight)) |
| 846 | { |
| 847 | round_size_to_char (ew, |
| 848 | (mask & CWWidth) ? request->width : ew->core.width, |
| 849 | ((mask & CWHeight) ? request->height |
| 850 | : ew->core.height), |
| 851 | &ok_width, &ok_height); |
| 852 | if ((mask & CWWidth) && (ok_width != request->width)) |
| 853 | { |
| 854 | result->request_mode |= CWWidth; |
| 855 | result->width = ok_width; |
| 856 | } |
| 857 | if ((mask & CWHeight) && (ok_height != request->height)) |
| 858 | { |
| 859 | result->request_mode |= CWHeight; |
| 860 | result->height = ok_height; |
| 861 | } |
| 862 | } |
| 863 | return result->request_mode ? XtGeometryAlmost : XtGeometryYes; |
| 864 | } |
| 865 | |
| 866 | /* Special entrypoints */ |
| 867 | void |
| 868 | EmacsFrameSetCharSize (widget, columns, rows) |
| 869 | Widget widget; |
| 870 | int columns; |
| 871 | int rows; |
| 872 | { |
| 873 | EmacsFrame ew = (EmacsFrame) widget; |
| 874 | Dimension pixel_width, pixel_height; |
| 875 | struct frame *f = ew->emacs_frame.frame; |
| 876 | |
| 877 | if (columns < 3) columns = 3; /* no way buddy */ |
| 878 | |
| 879 | check_frame_size (f, &rows, &columns); |
| 880 | f->scroll_bar_actual_width |
| 881 | = FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f); |
| 882 | |
| 883 | compute_fringe_widths (f, 0); |
| 884 | |
| 885 | char_to_pixel_size (ew, columns, rows, &pixel_width, &pixel_height); |
| 886 | |
| 887 | #if 0 /* This doesn't seem to be right. The frame gets too wide. --gerd. */ |
| 888 | /* Something is really strange here wrt to the border width: |
| 889 | Apparently, XtNwidth and XtNheight include the border, so we have |
| 890 | to add it here. But the XtNborderWidth set for the widgets has |
| 891 | no similarity to what f->border_width is set to. */ |
| 892 | XtVaGetValues (widget, XtNborderWidth, &border_width, NULL); |
| 893 | pixel_height += 2 * border_width; |
| 894 | pixel_width += 2 * border_width; |
| 895 | #endif |
| 896 | |
| 897 | /* Manually change the height and width of all our widgets, |
| 898 | adjusting each widget by the same increments. */ |
| 899 | if (ew->core.width != pixel_width |
| 900 | || ew->core.height != pixel_height) |
| 901 | { |
| 902 | int hdelta = pixel_height - ew->core.height; |
| 903 | int wdelta = pixel_width - ew->core.width; |
| 904 | int column_widget_height = f->output_data.x->column_widget->core.height; |
| 905 | int column_widget_width = f->output_data.x->column_widget->core.width; |
| 906 | int outer_widget_height = f->output_data.x->widget->core.height; |
| 907 | int outer_widget_width = f->output_data.x->widget->core.width; |
| 908 | int old_left = f->output_data.x->widget->core.x; |
| 909 | int old_top = f->output_data.x->widget->core.y; |
| 910 | |
| 911 | /* Input is blocked here, and Xt waits for some event to |
| 912 | occur. */ |
| 913 | |
| 914 | lw_refigure_widget (f->output_data.x->column_widget, False); |
| 915 | update_hints_inhibit = 1; |
| 916 | |
| 917 | /* Xt waits for a ConfigureNotify event from the window manager |
| 918 | in EmacsFrameSetCharSize when the shell widget is resized. |
| 919 | For some window managers like fvwm2 2.2.5 and KDE 2.1 this |
| 920 | event doesn't arrive for an unknown reason and Emacs hangs in |
| 921 | Xt when the default font is changed. Tell Xt not to wait, |
| 922 | depending on the value of the frame parameter |
| 923 | `wait-for-wm'. */ |
| 924 | x_catch_errors (FRAME_X_DISPLAY (f)); |
| 925 | XtVaSetValues (f->output_data.x->widget, |
| 926 | XtNwaitForWm, (XtArgVal) f->output_data.x->wait_for_wm, |
| 927 | NULL); |
| 928 | x_uncatch_errors (); |
| 929 | |
| 930 | /* Workaround: When a SIGIO or SIGALRM occurs while Xt is |
| 931 | waiting for a ConfigureNotify event (see above), this leads |
| 932 | to Xt waiting indefinitely instead of using its default |
| 933 | timeout (5 seconds). */ |
| 934 | turn_on_atimers (0); |
| 935 | #ifdef SIGIO |
| 936 | sigblock (sigmask (SIGIO)); |
| 937 | #endif |
| 938 | |
| 939 | /* Do parents first, otherwise LessTif's geometry management |
| 940 | enters an infinite loop (as of 2000-01-15). This is fixed in |
| 941 | later versions of LessTif (as of 2001-03-13); I'll leave it |
| 942 | as is because I think it can't do any harm. */ |
| 943 | /* In April 2002, simon.marshall@misys.com reports the problem |
| 944 | seems not to occur any longer. */ |
| 945 | x_catch_errors (FRAME_X_DISPLAY (f)); |
| 946 | XtVaSetValues (f->output_data.x->widget, |
| 947 | XtNheight, (XtArgVal) (outer_widget_height + hdelta), |
| 948 | XtNwidth, (XtArgVal) (outer_widget_width + wdelta), |
| 949 | NULL); |
| 950 | XtVaSetValues (f->output_data.x->column_widget, |
| 951 | XtNheight, (XtArgVal) (column_widget_height + hdelta), |
| 952 | XtNwidth, (XtArgVal) column_widget_width + wdelta, |
| 953 | NULL); |
| 954 | XtVaSetValues ((Widget) ew, |
| 955 | XtNheight, (XtArgVal) pixel_height, |
| 956 | XtNwidth, (XtArgVal) pixel_width, |
| 957 | NULL); |
| 958 | x_uncatch_errors (); |
| 959 | |
| 960 | #ifdef SIGIO |
| 961 | sigunblock (sigmask (SIGIO)); |
| 962 | #endif |
| 963 | turn_on_atimers (1); |
| 964 | |
| 965 | lw_refigure_widget (f->output_data.x->column_widget, True); |
| 966 | |
| 967 | update_hints_inhibit = 0; |
| 968 | update_wm_hints (ew); |
| 969 | |
| 970 | /* These seem to get clobbered. I don't know why. - rms. */ |
| 971 | f->output_data.x->widget->core.x = old_left; |
| 972 | f->output_data.x->widget->core.y = old_top; |
| 973 | } |
| 974 | |
| 975 | /* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to |
| 976 | receive in the ConfigureNotify event; if we get what we asked |
| 977 | for, then the event won't cause the screen to become garbaged, so |
| 978 | we have to make sure to do it here. */ |
| 979 | SET_FRAME_GARBAGED (f); |
| 980 | } |
| 981 | |
| 982 | \f |
| 983 | void |
| 984 | widget_store_internal_border (widget) |
| 985 | Widget widget; |
| 986 | { |
| 987 | EmacsFrame ew = (EmacsFrame) widget; |
| 988 | FRAME_PTR f = ew->emacs_frame.frame; |
| 989 | |
| 990 | ew->emacs_frame.internal_border_width = f->internal_border_width; |
| 991 | } |
| 992 | |
| 993 | /* arch-tag: 931d28e5-0d59-405a-8325-7d475d0a13d9 |
| 994 | (do not change this comment) */ |