| 1 | /* The emacs frame widget. |
| 2 | Copyright (C) 1992-1993, 2000-2014 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 3 of the License, or |
| 9 | (at your option) 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. If not, see <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | /* Emacs 19 face widget ported by Fred Pierresteguy */ |
| 20 | |
| 21 | /* This file has been censored by the Communications Decency Act. |
| 22 | That law was passed under the guise of a ban on pornography, but |
| 23 | it bans far more than that. This file did not contain pornography, |
| 24 | but it was censored nonetheless. |
| 25 | |
| 26 | For information on US government censorship of the Internet, and |
| 27 | what you can do to bring back freedom of the press, see the web |
| 28 | site http://www.vtw.org/ |
| 29 | */ |
| 30 | |
| 31 | #include <config.h> |
| 32 | #include <stdio.h> |
| 33 | |
| 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 "character.h" |
| 54 | #include "font.h" |
| 55 | |
| 56 | /* This sucks: this is the first default that x-faces.el tries. This won't |
| 57 | be used unless neither the "Emacs.EmacsFrame" resource nor the |
| 58 | "Emacs.EmacsFrame" resource is set; the frame |
| 59 | may have the wrong default size if this font doesn't exist, but some other |
| 60 | font that x-faces.el does. The workaround is to specify some font in the |
| 61 | resource database; I don't know a solution other than duplicating the font- |
| 62 | searching code from x-faces.el in this file. |
| 63 | |
| 64 | This also means that if "Emacs.EmacsFrame" is specified as a non- |
| 65 | existent font, then Xt is going to substitute "XtDefaultFont" for it, |
| 66 | which is a different size than this one. The solution for this is to |
| 67 | make x-faces.el try to use XtDefaultFont. The problem with that is that |
| 68 | XtDefaultFont is almost certainly variable-width. |
| 69 | |
| 70 | #### Perhaps we could have this code explicitly set XtDefaultFont to this? |
| 71 | */ |
| 72 | #define DEFAULT_FACE_FONT "-*-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-*" |
| 73 | |
| 74 | |
| 75 | static void EmacsFrameInitialize (Widget request, Widget new, ArgList dum1, Cardinal *dum2); |
| 76 | static void EmacsFrameDestroy (Widget widget); |
| 77 | static void EmacsFrameRealize (Widget widget, XtValueMask *mask, XSetWindowAttributes *attrs); |
| 78 | static void EmacsFrameResize (Widget widget); |
| 79 | static Boolean EmacsFrameSetValues (Widget cur_widget, Widget req_widget, Widget new_widget, ArgList dum1, Cardinal *dum2); |
| 80 | static XtGeometryResult EmacsFrameQueryGeometry (Widget widget, XtWidgetGeometry *request, XtWidgetGeometry *result); |
| 81 | |
| 82 | |
| 83 | #undef XtOffset |
| 84 | #define XtOffset(p_type,field) \ |
| 85 | ((Cardinal) (((char *) (&(((p_type)0)->field))) - ((char *)0))) |
| 86 | #define offset(field) XtOffset (EmacsFrame, emacs_frame.field) |
| 87 | |
| 88 | static XtResource resources[] = { |
| 89 | {XtNgeometry, XtCGeometry, XtRString, sizeof (String), |
| 90 | offset (geometry), XtRString, (XtPointer) 0}, |
| 91 | {XtNiconic, XtCIconic, XtRBoolean, sizeof (Boolean), |
| 92 | offset (iconic), XtRImmediate, (XtPointer) False}, |
| 93 | |
| 94 | {XtNemacsFrame, XtCEmacsFrame, XtRPointer, sizeof (XtPointer), |
| 95 | offset (frame), XtRImmediate, 0}, |
| 96 | |
| 97 | {XtNminibuffer, XtCMinibuffer, XtRInt, sizeof (int), |
| 98 | offset (minibuffer), XtRImmediate, (XtPointer)0}, |
| 99 | {XtNunsplittable, XtCUnsplittable, XtRBoolean, sizeof (Boolean), |
| 100 | offset (unsplittable), XtRImmediate, (XtPointer)0}, |
| 101 | {XtNinternalBorderWidth, XtCInternalBorderWidth, XtRInt, sizeof (int), |
| 102 | offset (internal_border_width), XtRImmediate, (XtPointer)4}, |
| 103 | {XtNinterline, XtCInterline, XtRInt, sizeof (int), |
| 104 | offset (interline), XtRImmediate, (XtPointer)0}, |
| 105 | {XtNfont, XtCFont, XtRFontStruct, sizeof (struct font *), |
| 106 | offset (font),XtRString, DEFAULT_FACE_FONT}, |
| 107 | {XtNforeground, XtCForeground, XtRPixel, sizeof (Pixel), |
| 108 | offset (foreground_pixel), XtRString, "XtDefaultForeground"}, |
| 109 | {XtNcursorColor, XtCForeground, XtRPixel, sizeof (Pixel), |
| 110 | offset (cursor_color), XtRString, "XtDefaultForeground"}, |
| 111 | {XtNbarCursor, XtCBarCursor, XtRBoolean, sizeof (Boolean), |
| 112 | offset (bar_cursor), XtRImmediate, (XtPointer)0}, |
| 113 | {XtNvisualBell, XtCVisualBell, XtRBoolean, sizeof (Boolean), |
| 114 | offset (visual_bell), XtRImmediate, (XtPointer)0}, |
| 115 | {XtNbellVolume, XtCBellVolume, XtRInt, sizeof (int), |
| 116 | offset (bell_volume), XtRImmediate, (XtPointer)0}, |
| 117 | }; |
| 118 | |
| 119 | #undef offset |
| 120 | |
| 121 | /* |
| 122 | static XtActionsRec |
| 123 | emacsFrameActionsTable [] = { |
| 124 | {"keypress", key_press}, |
| 125 | {"focus_in", emacs_frame_focus_handler}, |
| 126 | {"focus_out", emacs_frame_focus_handler}, |
| 127 | }; |
| 128 | |
| 129 | static char |
| 130 | emacsFrameTranslations [] = "\ |
| 131 | <KeyPress>: keypress()\n\ |
| 132 | <FocusIn>: focus_in()\n\ |
| 133 | <FocusOut>: focus_out()\n\ |
| 134 | "; |
| 135 | */ |
| 136 | |
| 137 | static EmacsFrameClassRec emacsFrameClassRec = { |
| 138 | { /* core fields */ |
| 139 | /* superclass */ &widgetClassRec, |
| 140 | /* class_name */ "EmacsFrame", |
| 141 | /* widget_size */ sizeof (EmacsFrameRec), |
| 142 | /* class_initialize */ 0, |
| 143 | /* class_part_initialize */ 0, |
| 144 | /* class_inited */ FALSE, |
| 145 | /* initialize */ EmacsFrameInitialize, |
| 146 | /* initialize_hook */ 0, |
| 147 | /* realize */ EmacsFrameRealize, |
| 148 | /* actions */ 0, /*emacsFrameActionsTable*/ |
| 149 | /* num_actions */ 0, /*XtNumber (emacsFrameActionsTable)*/ |
| 150 | /* resources */ resources, |
| 151 | /* resource_count */ XtNumber (resources), |
| 152 | /* xrm_class */ NULLQUARK, |
| 153 | /* compress_motion */ TRUE, |
| 154 | /* compress_exposure */ TRUE, |
| 155 | /* compress_enterleave */ TRUE, |
| 156 | /* visible_interest */ FALSE, |
| 157 | /* destroy */ EmacsFrameDestroy, |
| 158 | /* resize */ EmacsFrameResize, |
| 159 | /* expose */ XtInheritExpose, |
| 160 | /* set_values */ EmacsFrameSetValues, |
| 161 | /* set_values_hook */ 0, |
| 162 | /* set_values_almost */ XtInheritSetValuesAlmost, |
| 163 | /* get_values_hook */ 0, |
| 164 | /* accept_focus */ XtInheritAcceptFocus, |
| 165 | /* version */ XtVersion, |
| 166 | /* callback_private */ 0, |
| 167 | /* tm_table */ 0, /*emacsFrameTranslations*/ |
| 168 | /* query_geometry */ EmacsFrameQueryGeometry, |
| 169 | /* display_accelerator */ XtInheritDisplayAccelerator, |
| 170 | /* extension */ 0 |
| 171 | } |
| 172 | }; |
| 173 | |
| 174 | WidgetClass emacsFrameClass = (WidgetClass) &emacsFrameClassRec; |
| 175 | |
| 176 | static void |
| 177 | get_default_char_pixel_size (EmacsFrame ew, int *pixel_width, int *pixel_height) |
| 178 | { |
| 179 | struct frame* f = ew->emacs_frame.frame; |
| 180 | *pixel_width = FRAME_COLUMN_WIDTH (f); |
| 181 | *pixel_height = FRAME_LINE_HEIGHT (f); |
| 182 | } |
| 183 | |
| 184 | static void |
| 185 | pixel_to_char_size (EmacsFrame ew, Dimension pixel_width, Dimension pixel_height, int *char_width, int *char_height) |
| 186 | { |
| 187 | struct frame* f = ew->emacs_frame.frame; |
| 188 | *char_width = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (f, (int) pixel_width); |
| 189 | *char_height = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (f, (int) pixel_height); |
| 190 | } |
| 191 | |
| 192 | static void |
| 193 | pixel_to_text_size (EmacsFrame ew, Dimension pixel_width, Dimension pixel_height, int *text_width, int *text_height) |
| 194 | { |
| 195 | struct frame* f = ew->emacs_frame.frame; |
| 196 | *text_width = FRAME_PIXEL_TO_TEXT_WIDTH (f, (int) pixel_width); |
| 197 | *text_height = FRAME_PIXEL_TO_TEXT_HEIGHT (f, (int) pixel_height); |
| 198 | } |
| 199 | |
| 200 | static void |
| 201 | char_to_pixel_size (EmacsFrame ew, int char_width, int char_height, Dimension *pixel_width, Dimension *pixel_height) |
| 202 | { |
| 203 | struct frame* f = ew->emacs_frame.frame; |
| 204 | *pixel_width = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, char_width); |
| 205 | *pixel_height = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, char_height); |
| 206 | } |
| 207 | |
| 208 | static void |
| 209 | round_size_to_char (EmacsFrame ew, Dimension in_width, Dimension in_height, Dimension *out_width, Dimension *out_height) |
| 210 | { |
| 211 | int char_width; |
| 212 | int char_height; |
| 213 | pixel_to_char_size (ew, in_width, in_height, &char_width, &char_height); |
| 214 | char_to_pixel_size (ew, char_width, char_height, out_width, out_height); |
| 215 | } |
| 216 | |
| 217 | static Widget |
| 218 | get_wm_shell (Widget w) |
| 219 | { |
| 220 | Widget wmshell; |
| 221 | |
| 222 | for (wmshell = XtParent (w); |
| 223 | wmshell && !XtIsWMShell (wmshell); |
| 224 | wmshell = XtParent (wmshell)); |
| 225 | |
| 226 | return wmshell; |
| 227 | } |
| 228 | |
| 229 | #if 0 /* Currently not used. */ |
| 230 | |
| 231 | static void |
| 232 | mark_shell_size_user_specified (Widget wmshell) |
| 233 | { |
| 234 | if (! XtIsWMShell (wmshell)) emacs_abort (); |
| 235 | /* This is kind of sleazy, but I can't see how else to tell it to make it |
| 236 | mark the WM_SIZE_HINTS size as user specified when appropriate. */ |
| 237 | ((WMShellWidget) wmshell)->wm.size_hints.flags |= USSize; |
| 238 | } |
| 239 | |
| 240 | #endif |
| 241 | |
| 242 | |
| 243 | /* Can't have static frame locals because of some broken compilers. |
| 244 | Normally, initializing a variable like this doesn't work in emacs, |
| 245 | but it's ok in this file because it must come after lastfile (and |
| 246 | thus have its data not go into text space) because Xt needs to |
| 247 | write to initialized data objects too. |
| 248 | */ |
| 249 | #if 0 |
| 250 | static Boolean first_frame_p = True; |
| 251 | #endif |
| 252 | |
| 253 | static void |
| 254 | set_frame_size (EmacsFrame ew) |
| 255 | { |
| 256 | /* The widget hierarchy is |
| 257 | |
| 258 | argv[0] emacsShell pane Frame-NAME |
| 259 | ApplicationShell EmacsShell Paned EmacsFrame |
| 260 | |
| 261 | We accept geometry specs in this order: |
| 262 | |
| 263 | *Frame-NAME.geometry |
| 264 | *EmacsFrame.geometry |
| 265 | Emacs.geometry |
| 266 | |
| 267 | Other possibilities for widget hierarchies might be |
| 268 | |
| 269 | argv[0] frame pane Frame-NAME |
| 270 | ApplicationShell EmacsShell Paned EmacsFrame |
| 271 | or |
| 272 | argv[0] Frame-NAME pane Frame-NAME |
| 273 | ApplicationShell EmacsShell Paned EmacsFrame |
| 274 | or |
| 275 | argv[0] Frame-NAME pane emacsTextPane |
| 276 | ApplicationShell EmacsFrame Paned EmacsTextPane |
| 277 | |
| 278 | With the current setup, the text-display-area is the part which is |
| 279 | an emacs "frame", since that's the only part managed by emacs proper |
| 280 | (the menubar and the parent of the menubar and all that sort of thing |
| 281 | are managed by lwlib.) |
| 282 | |
| 283 | The EmacsShell widget is simply a replacement for the Shell widget |
| 284 | which is able to deal with using an externally-supplied window instead |
| 285 | of always creating its own. It is not actually emacs specific, and |
| 286 | should possibly have class "Shell" instead of "EmacsShell" to simplify |
| 287 | the resources. |
| 288 | |
| 289 | */ |
| 290 | |
| 291 | /* Hairily merged geometry */ |
| 292 | unsigned int w = FRAME_COLS (ew->emacs_frame.frame); |
| 293 | unsigned int h = FRAME_LINES (ew->emacs_frame.frame); |
| 294 | |
| 295 | Widget wmshell = get_wm_shell ((Widget) ew); |
| 296 | /* Each Emacs shell is now independent and top-level. */ |
| 297 | |
| 298 | if (! XtIsSubclass (wmshell, shellWidgetClass)) emacs_abort (); |
| 299 | |
| 300 | /* We don't need this for the moment. The geometry is computed in |
| 301 | xfns.c. */ |
| 302 | #if 0 |
| 303 | /* If the EmacsFrame doesn't have a geometry but the shell does, |
| 304 | treat that as the geometry of the frame. (Is this bogus? |
| 305 | I'm not sure.) */ |
| 306 | if (ew->emacs_frame.geometry == 0) |
| 307 | XtVaGetValues (wmshell, XtNgeometry, &ew->emacs_frame.geometry, NULL); |
| 308 | |
| 309 | /* If the Shell is iconic, then the EmacsFrame is iconic. (Is |
| 310 | this bogus? I'm not sure.) */ |
| 311 | if (!ew->emacs_frame.iconic) |
| 312 | XtVaGetValues (wmshell, XtNiconic, &ew->emacs_frame.iconic, NULL); |
| 313 | |
| 314 | |
| 315 | { |
| 316 | char *geom = 0; |
| 317 | XtVaGetValues (app_shell, XtNgeometry, &geom, NULL); |
| 318 | if (geom) |
| 319 | app_flags = XParseGeometry (geom, &app_x, &app_y, &app_w, &app_h); |
| 320 | } |
| 321 | |
| 322 | if (ew->emacs_frame.geometry) |
| 323 | frame_flags = XParseGeometry (ew->emacs_frame.geometry, |
| 324 | &frame_x, &frame_y, |
| 325 | &frame_w, &frame_h); |
| 326 | |
| 327 | if (first_frame_p) |
| 328 | { |
| 329 | /* If this is the first frame created: |
| 330 | ==================================== |
| 331 | |
| 332 | - Use the ApplicationShell's size/position, if specified. |
| 333 | (This is "Emacs.geometry", or the "-geometry" command line arg.) |
| 334 | - Else use the EmacsFrame's size/position. |
| 335 | (This is "*Frame-NAME.geometry") |
| 336 | |
| 337 | - If the AppShell is iconic, the frame should be iconic. |
| 338 | |
| 339 | AppShell comes first so that -geometry always applies to the first |
| 340 | frame created, even if there is an "every frame" entry in the |
| 341 | resource database. |
| 342 | */ |
| 343 | if (app_flags & (XValue | YValue)) |
| 344 | { |
| 345 | x = app_x; y = app_y; |
| 346 | flags |= (app_flags & (XValue | YValue | XNegative | YNegative)); |
| 347 | } |
| 348 | else if (frame_flags & (XValue | YValue)) |
| 349 | { |
| 350 | x = frame_x; y = frame_y; |
| 351 | flags |= (frame_flags & (XValue | YValue | XNegative | YNegative)); |
| 352 | } |
| 353 | |
| 354 | if (app_flags & (WidthValue | HeightValue)) |
| 355 | { |
| 356 | w = app_w; h = app_h; |
| 357 | flags |= (app_flags & (WidthValue | HeightValue)); |
| 358 | } |
| 359 | else if (frame_flags & (WidthValue | HeightValue)) |
| 360 | { |
| 361 | w = frame_w; h = frame_h; |
| 362 | flags |= (frame_flags & (WidthValue | HeightValue)); |
| 363 | } |
| 364 | |
| 365 | /* If the AppShell is iconic, then the EmacsFrame is iconic. */ |
| 366 | if (!ew->emacs_frame.iconic) |
| 367 | XtVaGetValues (app_shell, XtNiconic, &ew->emacs_frame.iconic, NULL); |
| 368 | |
| 369 | first_frame_p = False; |
| 370 | } |
| 371 | else |
| 372 | { |
| 373 | /* If this is not the first frame created: |
| 374 | ======================================== |
| 375 | |
| 376 | - use the EmacsFrame's size/position if specified |
| 377 | - Otherwise, use the ApplicationShell's size, but not position. |
| 378 | |
| 379 | So that means that one can specify the position of the first frame |
| 380 | with "Emacs.geometry" or `-geometry'; but can only specify the |
| 381 | position of subsequent frames with "*Frame-NAME.geometry". |
| 382 | |
| 383 | AppShell comes second so that -geometry does not apply to subsequent |
| 384 | frames when there is an "every frame" entry in the resource db, |
| 385 | but does apply to the first frame. |
| 386 | */ |
| 387 | if (frame_flags & (XValue | YValue)) |
| 388 | { |
| 389 | x = frame_x; y = frame_y; |
| 390 | flags |= (frame_flags & (XValue | YValue | XNegative | YNegative)); |
| 391 | } |
| 392 | |
| 393 | if (frame_flags & (WidthValue | HeightValue)) |
| 394 | { |
| 395 | w = frame_w; h = frame_h; |
| 396 | flags |= (frame_flags & (WidthValue | HeightValue)); |
| 397 | } |
| 398 | else if (app_flags & (WidthValue | HeightValue)) |
| 399 | { |
| 400 | w = app_w; |
| 401 | h = app_h; |
| 402 | flags |= (app_flags & (WidthValue | HeightValue)); |
| 403 | } |
| 404 | } |
| 405 | #endif /* 0 */ |
| 406 | { |
| 407 | struct frame *f = ew->emacs_frame.frame; |
| 408 | Dimension pixel_width, pixel_height; |
| 409 | |
| 410 | /* Take into account the size of the scrollbar. Always use the |
| 411 | number of columns occupied by the scroll bar here otherwise we |
| 412 | might end up with a frame width that is not a multiple of the |
| 413 | frame's character width which is bad for vertically split |
| 414 | windows. */ |
| 415 | |
| 416 | compute_fringe_widths (f, 0); |
| 417 | |
| 418 | #if 0 /* This can run Lisp code, and it is dangerous to give |
| 419 | out the frame to Lisp code before it officially exists. |
| 420 | This is handled in Fx_create_frame so not needed here. */ |
| 421 | change_frame_size (f, w, h, 1, 0, 0, 0); |
| 422 | #endif |
| 423 | char_to_pixel_size (ew, w, h, &pixel_width, &pixel_height); |
| 424 | ew->core.width = pixel_width; |
| 425 | ew->core.height = pixel_height; |
| 426 | |
| 427 | #if 0 /* xfns.c takes care of this now. */ |
| 428 | /* If a position was specified, assign it to the shell widget. |
| 429 | (Else WM won't do anything with it.) |
| 430 | */ |
| 431 | if (flags & (XValue | YValue)) |
| 432 | { |
| 433 | /* the tricky things with the sign is to make sure that |
| 434 | -0 is printed -0. */ |
| 435 | sprintf (shell_position, "=%c%d%c%d", |
| 436 | flags & XNegative ? '-' : '+', x < 0 ? -x : x, |
| 437 | flags & YNegative ? '-' : '+', y < 0 ? -y : y); |
| 438 | XtVaSetValues (wmshell, XtNgeometry, xstrdup (shell_position), NULL); |
| 439 | } |
| 440 | else if (flags & (WidthValue | HeightValue)) |
| 441 | { |
| 442 | sprintf (shell_position, "=%dx%d", pixel_width, pixel_height); |
| 443 | XtVaSetValues (wmshell, XtNgeometry, xstrdup (shell_position), NULL); |
| 444 | } |
| 445 | |
| 446 | /* If the geometry spec we're using has W/H components, mark the size |
| 447 | in the WM_SIZE_HINTS as user specified. */ |
| 448 | if (flags & (WidthValue | HeightValue)) |
| 449 | mark_shell_size_user_specified (wmshell); |
| 450 | |
| 451 | /* Also assign the iconic status of the frame to the Shell, so that |
| 452 | the WM sees it. */ |
| 453 | XtVaSetValues (wmshell, XtNiconic, ew->emacs_frame.iconic, NULL); |
| 454 | #endif /* 0 */ |
| 455 | } |
| 456 | } |
| 457 | |
| 458 | static void |
| 459 | update_wm_hints (EmacsFrame ew) |
| 460 | { |
| 461 | Widget wmshell = get_wm_shell ((Widget)ew); |
| 462 | int cw; |
| 463 | int ch; |
| 464 | Dimension rounded_width; |
| 465 | Dimension rounded_height; |
| 466 | int char_width; |
| 467 | int char_height; |
| 468 | int base_width; |
| 469 | int base_height; |
| 470 | int min_rows = 0, min_cols = 0; |
| 471 | |
| 472 | /* This happens when the frame is just created. */ |
| 473 | if (! wmshell) return; |
| 474 | |
| 475 | #if 0 |
| 476 | check_frame_size (ew->emacs_frame.frame, &min_cols, &min_rows, 0); |
| 477 | #endif |
| 478 | |
| 479 | pixel_to_char_size (ew, ew->core.width, ew->core.height, |
| 480 | &char_width, &char_height); |
| 481 | char_to_pixel_size (ew, char_width, char_height, |
| 482 | &rounded_width, &rounded_height); |
| 483 | get_default_char_pixel_size (ew, &cw, &ch); |
| 484 | |
| 485 | base_width = (wmshell->core.width - ew->core.width |
| 486 | + (rounded_width - (char_width * cw))); |
| 487 | base_height = (wmshell->core.height - ew->core.height |
| 488 | + (rounded_height - (char_height * ch))); |
| 489 | |
| 490 | /* This is kind of sleazy, but I can't see how else to tell it to |
| 491 | make it mark the WM_SIZE_HINTS size as user specified. |
| 492 | */ |
| 493 | /* ((WMShellWidget) wmshell)->wm.size_hints.flags |= USSize;*/ |
| 494 | |
| 495 | XtVaSetValues (wmshell, |
| 496 | XtNbaseWidth, (XtArgVal) base_width, |
| 497 | XtNbaseHeight, (XtArgVal) base_height, |
| 498 | XtNwidthInc, (XtArgVal) (frame_resize_pixelwise ? 1 : cw), |
| 499 | XtNheightInc, (XtArgVal) (frame_resize_pixelwise ? 1 : ch), |
| 500 | XtNminWidth, (XtArgVal) (base_width + min_cols * cw), |
| 501 | XtNminHeight, (XtArgVal) (base_height + min_rows * ch), |
| 502 | NULL); |
| 503 | } |
| 504 | |
| 505 | void |
| 506 | widget_update_wm_size_hints (Widget widget) |
| 507 | { |
| 508 | EmacsFrame ew = (EmacsFrame)widget; |
| 509 | update_wm_hints (ew); |
| 510 | } |
| 511 | |
| 512 | static char setup_frame_cursor_bits[] = |
| 513 | { |
| 514 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 515 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 516 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 517 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 518 | }; |
| 519 | |
| 520 | static void |
| 521 | setup_frame_gcs (EmacsFrame ew) |
| 522 | { |
| 523 | XGCValues gc_values; |
| 524 | struct frame* s = ew->emacs_frame.frame; |
| 525 | Pixmap blank_stipple, blank_tile; |
| 526 | unsigned long valuemask = (GCForeground | GCBackground | GCGraphicsExposures |
| 527 | | GCStipple | GCTile); |
| 528 | Lisp_Object font; |
| 529 | |
| 530 | XSETFONT (font, ew->emacs_frame.font); |
| 531 | font = Ffont_xlfd_name (font, Qnil); |
| 532 | if (STRINGP (font)) |
| 533 | { |
| 534 | XFontStruct *xfont = XLoadQueryFont (FRAME_DISPLAY_INFO (s)->display, |
| 535 | SSDATA (font)); |
| 536 | if (xfont) |
| 537 | { |
| 538 | gc_values.font = xfont->fid; |
| 539 | valuemask |= GCFont; |
| 540 | } |
| 541 | } |
| 542 | |
| 543 | /* We have to initialize all of our GCs to have a stipple/tile, otherwise |
| 544 | XGetGCValues returns uninitialized data when we query the stipple |
| 545 | (instead of None or something sensible) and it makes things hard. |
| 546 | |
| 547 | This should be fixed for real by not querying the GCs but instead having |
| 548 | some GC-based cache instead of the current face-based cache which doesn't |
| 549 | effectively cache all of the GC settings we need to use. |
| 550 | */ |
| 551 | |
| 552 | blank_stipple |
| 553 | = XCreateBitmapFromData (XtDisplay (ew), |
| 554 | RootWindowOfScreen (XtScreen (ew)), |
| 555 | setup_frame_cursor_bits, 2, 2); |
| 556 | |
| 557 | /* use fg = 0, bg = 1 below, but it's irrelevant since this pixmap should |
| 558 | never actually get used as a background tile! |
| 559 | */ |
| 560 | blank_tile |
| 561 | = XCreatePixmapFromBitmapData (XtDisplay (ew), |
| 562 | RootWindowOfScreen (XtScreen (ew)), |
| 563 | setup_frame_cursor_bits, 2, 2, |
| 564 | 0, 1, ew->core.depth); |
| 565 | |
| 566 | /* Normal video */ |
| 567 | gc_values.foreground = ew->emacs_frame.foreground_pixel; |
| 568 | gc_values.background = ew->core.background_pixel; |
| 569 | gc_values.graphics_exposures = False; |
| 570 | gc_values.stipple = blank_stipple; |
| 571 | gc_values.tile = blank_tile; |
| 572 | XChangeGC (XtDisplay (ew), s->output_data.x->normal_gc, |
| 573 | valuemask, &gc_values); |
| 574 | |
| 575 | /* Reverse video style. */ |
| 576 | gc_values.foreground = ew->core.background_pixel; |
| 577 | gc_values.background = ew->emacs_frame.foreground_pixel; |
| 578 | gc_values.graphics_exposures = False; |
| 579 | gc_values.stipple = blank_stipple; |
| 580 | gc_values.tile = blank_tile; |
| 581 | XChangeGC (XtDisplay (ew), s->output_data.x->reverse_gc, |
| 582 | valuemask, &gc_values); |
| 583 | |
| 584 | /* Cursor has to have an empty stipple. */ |
| 585 | gc_values.foreground = ew->core.background_pixel; |
| 586 | gc_values.background = ew->emacs_frame.cursor_color; |
| 587 | gc_values.graphics_exposures = False; |
| 588 | gc_values.tile = blank_tile; |
| 589 | gc_values.stipple |
| 590 | = XCreateBitmapFromData (XtDisplay (ew), |
| 591 | RootWindowOfScreen (XtScreen (ew)), |
| 592 | setup_frame_cursor_bits, 16, 16); |
| 593 | XChangeGC (XtDisplay (ew), s->output_data.x->cursor_gc, |
| 594 | valuemask, &gc_values); |
| 595 | } |
| 596 | |
| 597 | static void |
| 598 | update_various_frame_slots (EmacsFrame ew) |
| 599 | { |
| 600 | struct frame *f = ew->emacs_frame.frame; |
| 601 | struct x_output *x = f->output_data.x; |
| 602 | FRAME_PIXEL_HEIGHT (f) = ew->core.height + x->menubar_height; |
| 603 | FRAME_PIXEL_WIDTH (f) = ew->core.width; |
| 604 | f->internal_border_width = ew->emacs_frame.internal_border_width; |
| 605 | |
| 606 | } |
| 607 | |
| 608 | static void |
| 609 | update_from_various_frame_slots (EmacsFrame ew) |
| 610 | { |
| 611 | struct frame *f = ew->emacs_frame.frame; |
| 612 | struct x_output *x = f->output_data.x; |
| 613 | ew->core.height = FRAME_PIXEL_HEIGHT (f) - x->menubar_height; |
| 614 | ew->core.width = FRAME_PIXEL_WIDTH (f); |
| 615 | ew->core.background_pixel = FRAME_BACKGROUND_PIXEL (f); |
| 616 | ew->emacs_frame.internal_border_width = f->internal_border_width; |
| 617 | ew->emacs_frame.font = x->font; |
| 618 | ew->emacs_frame.foreground_pixel = FRAME_FOREGROUND_PIXEL (f); |
| 619 | ew->emacs_frame.cursor_color = x->cursor_pixel; |
| 620 | ew->core.border_pixel = x->border_pixel; |
| 621 | } |
| 622 | |
| 623 | static void |
| 624 | EmacsFrameInitialize (Widget request, Widget new, ArgList dum1, Cardinal *dum2) |
| 625 | { |
| 626 | EmacsFrame ew = (EmacsFrame)new; |
| 627 | |
| 628 | if (!ew->emacs_frame.frame) |
| 629 | { |
| 630 | fprintf (stderr, |
| 631 | "can't create an emacs frame widget without a frame\n"); |
| 632 | exit (1); |
| 633 | } |
| 634 | |
| 635 | update_from_various_frame_slots (ew); |
| 636 | set_frame_size (ew); |
| 637 | } |
| 638 | |
| 639 | static void |
| 640 | resize_cb (Widget widget, |
| 641 | XtPointer closure, |
| 642 | XEvent* event, |
| 643 | Boolean* continue_to_dispatch) |
| 644 | { |
| 645 | EmacsFrameResize (widget); |
| 646 | } |
| 647 | |
| 648 | |
| 649 | static void |
| 650 | EmacsFrameRealize (Widget widget, XtValueMask *mask, XSetWindowAttributes *attrs) |
| 651 | { |
| 652 | EmacsFrame ew = (EmacsFrame)widget; |
| 653 | |
| 654 | /* This used to contain SubstructureRedirectMask, but this turns out |
| 655 | to be a problem with XIM on Solaris, and events from that mask |
| 656 | don't seem to be used. Let's check that. */ |
| 657 | attrs->event_mask = (STANDARD_EVENT_SET |
| 658 | | PropertyChangeMask |
| 659 | | SubstructureNotifyMask); |
| 660 | *mask |= CWEventMask; |
| 661 | XtCreateWindow (widget, InputOutput, (Visual *)CopyFromParent, *mask, |
| 662 | attrs); |
| 663 | /* Some ConfigureNotify events does not end up in EmacsFrameResize so |
| 664 | make sure we get them all. Seen with xfcwm4 for example. */ |
| 665 | XtAddRawEventHandler (widget, StructureNotifyMask, False, resize_cb, NULL); |
| 666 | update_wm_hints (ew); |
| 667 | } |
| 668 | |
| 669 | static void |
| 670 | EmacsFrameDestroy (Widget widget) |
| 671 | { |
| 672 | /* All GCs are now freed in x_free_frame_resources. */ |
| 673 | } |
| 674 | |
| 675 | static void |
| 676 | EmacsFrameResize (Widget widget) |
| 677 | { |
| 678 | EmacsFrame ew = (EmacsFrame)widget; |
| 679 | struct frame *f = ew->emacs_frame.frame; |
| 680 | struct x_output *x = f->output_data.x; |
| 681 | |
| 682 | #if 0 /* Always process resize requests pixelwise. Frame maximizing |
| 683 | should work even when frame_resize_pixelwise is nil. */ |
| 684 | if (frame_resize_pixelwise) |
| 685 | { |
| 686 | #endif /* 0 */ |
| 687 | int width, height; |
| 688 | |
| 689 | pixel_to_text_size (ew, ew->core.width, ew->core.height, &width, &height); |
| 690 | change_frame_size (f, width, height, 0, 1, 0, 1); |
| 691 | |
| 692 | update_wm_hints (ew); |
| 693 | update_various_frame_slots (ew); |
| 694 | |
| 695 | cancel_mouse_face (f); |
| 696 | #if 0 /* See comment above. */ |
| 697 | } |
| 698 | else |
| 699 | { |
| 700 | int columns, rows; |
| 701 | |
| 702 | pixel_to_char_size (ew, ew->core.width, ew->core.height, &columns, &rows); |
| 703 | if (columns != FRAME_COLS (f) |
| 704 | || rows != FRAME_LINES (f) |
| 705 | || ew->core.width != FRAME_PIXEL_WIDTH (f) |
| 706 | || ew->core.height + x->menubar_height != FRAME_PIXEL_HEIGHT (f)) |
| 707 | { |
| 708 | change_frame_size (f, columns, rows, 0, 1, 0, 0); |
| 709 | update_wm_hints (ew); |
| 710 | update_various_frame_slots (ew); |
| 711 | |
| 712 | cancel_mouse_face (f); |
| 713 | } |
| 714 | } |
| 715 | #endif /* 0 */ |
| 716 | } |
| 717 | |
| 718 | static Boolean |
| 719 | EmacsFrameSetValues (Widget cur_widget, Widget req_widget, Widget new_widget, ArgList dum1, Cardinal *dum2) |
| 720 | { |
| 721 | EmacsFrame cur = (EmacsFrame)cur_widget; |
| 722 | EmacsFrame new = (EmacsFrame)new_widget; |
| 723 | |
| 724 | Boolean needs_a_refresh = False; |
| 725 | Boolean has_to_recompute_size; |
| 726 | Boolean has_to_recompute_gcs; |
| 727 | Boolean has_to_update_hints; |
| 728 | |
| 729 | int char_width, char_height; |
| 730 | Dimension pixel_width; |
| 731 | Dimension pixel_height; |
| 732 | |
| 733 | /* AFAIK, this function is never called. -- Jan D, Oct 2009. */ |
| 734 | has_to_recompute_gcs = (cur->emacs_frame.font != new->emacs_frame.font |
| 735 | || (cur->emacs_frame.foreground_pixel |
| 736 | != new->emacs_frame.foreground_pixel) |
| 737 | || (cur->core.background_pixel |
| 738 | != new->core.background_pixel) |
| 739 | ); |
| 740 | |
| 741 | has_to_recompute_size = (cur->emacs_frame.font != new->emacs_frame.font |
| 742 | && cur->core.width == new->core.width |
| 743 | && cur->core.height == new->core.height); |
| 744 | |
| 745 | has_to_update_hints = (cur->emacs_frame.font != new->emacs_frame.font); |
| 746 | |
| 747 | if (has_to_recompute_gcs) |
| 748 | { |
| 749 | setup_frame_gcs (new); |
| 750 | needs_a_refresh = True; |
| 751 | } |
| 752 | |
| 753 | if (has_to_recompute_size) |
| 754 | { |
| 755 | /* Don't do this pixelwise, hopefully. */ |
| 756 | pixel_width = new->core.width; |
| 757 | pixel_height = new->core.height; |
| 758 | pixel_to_char_size (new, pixel_width, pixel_height, &char_width, |
| 759 | &char_height); |
| 760 | char_to_pixel_size (new, char_width, char_height, &pixel_width, |
| 761 | &pixel_height); |
| 762 | new->core.width = pixel_width; |
| 763 | new->core.height = pixel_height; |
| 764 | |
| 765 | change_frame_size (new->emacs_frame.frame, char_width, char_height, |
| 766 | 1, 0, 0, 0); |
| 767 | needs_a_refresh = True; |
| 768 | } |
| 769 | |
| 770 | if (has_to_update_hints) |
| 771 | update_wm_hints (new); |
| 772 | |
| 773 | update_various_frame_slots (new); |
| 774 | |
| 775 | /* #### This doesn't work, I haven't been able to find ANY kludge that |
| 776 | will let (x-create-frame '((iconic . t))) work. It seems that changes |
| 777 | to wm_shell's iconic slot have no effect after it has been realized, |
| 778 | and calling XIconifyWindow doesn't work either (even though the window |
| 779 | has been created.) Perhaps there is some property we could smash |
| 780 | directly, but I'm sick of this for now. |
| 781 | */ |
| 782 | if (cur->emacs_frame.iconic != new->emacs_frame.iconic) |
| 783 | { |
| 784 | Widget wmshell = get_wm_shell ((Widget) cur); |
| 785 | XtVaSetValues (wmshell, XtNiconic, |
| 786 | (XtArgVal) new->emacs_frame.iconic, NULL); |
| 787 | } |
| 788 | |
| 789 | return needs_a_refresh; |
| 790 | } |
| 791 | |
| 792 | static XtGeometryResult |
| 793 | EmacsFrameQueryGeometry (Widget widget, XtWidgetGeometry *request, XtWidgetGeometry *result) |
| 794 | { |
| 795 | EmacsFrame ew = (EmacsFrame)widget; |
| 796 | |
| 797 | int mask = request->request_mode; |
| 798 | Dimension ok_width, ok_height; |
| 799 | |
| 800 | if (mask & (CWWidth | CWHeight)) |
| 801 | { |
| 802 | round_size_to_char (ew, |
| 803 | (mask & CWWidth) ? request->width : ew->core.width, |
| 804 | ((mask & CWHeight) ? request->height |
| 805 | : ew->core.height), |
| 806 | &ok_width, &ok_height); |
| 807 | if ((mask & CWWidth) && (ok_width != request->width)) |
| 808 | { |
| 809 | result->request_mode |= CWWidth; |
| 810 | result->width = ok_width; |
| 811 | } |
| 812 | if ((mask & CWHeight) && (ok_height != request->height)) |
| 813 | { |
| 814 | result->request_mode |= CWHeight; |
| 815 | result->height = ok_height; |
| 816 | } |
| 817 | } |
| 818 | return result->request_mode ? XtGeometryAlmost : XtGeometryYes; |
| 819 | } |
| 820 | |
| 821 | /* Special entry points */ |
| 822 | void |
| 823 | EmacsFrameSetCharSize (Widget widget, int columns, int rows) |
| 824 | { |
| 825 | EmacsFrame ew = (EmacsFrame) widget; |
| 826 | struct frame *f = ew->emacs_frame.frame; |
| 827 | |
| 828 | x_set_window_size (f, 0, columns, rows, 0); |
| 829 | } |
| 830 | |
| 831 | \f |
| 832 | void |
| 833 | widget_store_internal_border (Widget widget) |
| 834 | { |
| 835 | EmacsFrame ew = (EmacsFrame) widget; |
| 836 | struct frame *f = ew->emacs_frame.frame; |
| 837 | |
| 838 | ew->emacs_frame.internal_border_width = f->internal_border_width; |
| 839 | } |