| 1 | /* Functions for creating and updating GTK widgets. |
| 2 | Copyright (C) 2003 |
| 3 | 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 2, or (at your option) |
| 10 | 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; see the file COPYING. If not, write to |
| 19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 20 | Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | #include "config.h" |
| 23 | |
| 24 | #ifdef USE_GTK |
| 25 | #include <string.h> |
| 26 | #include <stdio.h> |
| 27 | #include "lisp.h" |
| 28 | #include "xterm.h" |
| 29 | #include "blockinput.h" |
| 30 | #include "window.h" |
| 31 | #include "atimer.h" |
| 32 | #include "gtkutil.h" |
| 33 | #include "termhooks.h" |
| 34 | #include <gdk/gdkkeysyms.h> |
| 35 | |
| 36 | #define FRAME_TOTAL_PIXEL_HEIGHT(f) \ |
| 37 | (PIXEL_HEIGHT (f) + FRAME_MENUBAR_HEIGHT (f) + FRAME_TOOLBAR_HEIGHT (f)) |
| 38 | |
| 39 | |
| 40 | \f |
| 41 | /*********************************************************************** |
| 42 | Utility functions |
| 43 | ***********************************************************************/ |
| 44 | /* The timer for scroll bar repetition and menu bar timeouts. |
| 45 | NULL if no timer is started. */ |
| 46 | static struct atimer *xg_timer; |
| 47 | |
| 48 | /* The cursor used for scroll bars and popup menus. |
| 49 | We only have one cursor for all scroll bars and all popup menus. */ |
| 50 | static GdkCursor *xg_left_ptr_cursor; |
| 51 | |
| 52 | |
| 53 | /* The next two variables and functions are taken from lwlib. */ |
| 54 | static widget_value *widget_value_free_list; |
| 55 | static int malloc_cpt; |
| 56 | |
| 57 | /* Allocate a widget_value structure, either by taking one from the |
| 58 | widget_value_free_list or by malloc:ing a new one. |
| 59 | |
| 60 | Return a pointer to the allocated structure. */ |
| 61 | widget_value * |
| 62 | malloc_widget_value () |
| 63 | { |
| 64 | widget_value *wv; |
| 65 | if (widget_value_free_list) |
| 66 | { |
| 67 | wv = widget_value_free_list; |
| 68 | widget_value_free_list = wv->free_list; |
| 69 | wv->free_list = 0; |
| 70 | } |
| 71 | else |
| 72 | { |
| 73 | wv = (widget_value *) malloc (sizeof (widget_value)); |
| 74 | malloc_cpt++; |
| 75 | } |
| 76 | memset (wv, 0, sizeof (widget_value)); |
| 77 | return wv; |
| 78 | } |
| 79 | |
| 80 | /* This is analogous to free. It frees only what was allocated |
| 81 | by malloc_widget_value, and no substructures. */ |
| 82 | void |
| 83 | free_widget_value (wv) |
| 84 | widget_value *wv; |
| 85 | { |
| 86 | if (wv->free_list) |
| 87 | abort (); |
| 88 | |
| 89 | if (malloc_cpt > 25) |
| 90 | { |
| 91 | /* When the number of already allocated cells is too big, |
| 92 | We free it. */ |
| 93 | free (wv); |
| 94 | malloc_cpt--; |
| 95 | } |
| 96 | else |
| 97 | { |
| 98 | wv->free_list = widget_value_free_list; |
| 99 | widget_value_free_list = wv; |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | /* Set *CURSOR on W and all widgets W contain. We must do like this |
| 104 | for scroll bars and menu because they create widgets internally, |
| 105 | and it is those widgets that are visible. |
| 106 | |
| 107 | If *CURSOR is NULL, create a GDK_LEFT_PTR cursor and set *CURSOR to |
| 108 | the created cursor. */ |
| 109 | void |
| 110 | xg_set_cursor (w, cursor) |
| 111 | GtkWidget *w; |
| 112 | GdkCursor **cursor; |
| 113 | { |
| 114 | GList *children = gdk_window_peek_children (w->window); |
| 115 | |
| 116 | /* Create the cursor unless already created. */ |
| 117 | if (! *cursor) |
| 118 | *cursor = gdk_cursor_new (GDK_LEFT_PTR); |
| 119 | |
| 120 | gdk_window_set_cursor (w->window, *cursor); |
| 121 | |
| 122 | /* The scroll bar widget has more than one GDK window (had to look at |
| 123 | the source to figure this out), and there is no way to set cursor |
| 124 | on widgets in GTK. So we must set the cursor for all GDK windows. |
| 125 | Ditto for menus. */ |
| 126 | |
| 127 | for ( ; children; children = g_list_next (children)) |
| 128 | gdk_window_set_cursor (GDK_WINDOW (children->data), *cursor); |
| 129 | } |
| 130 | |
| 131 | /* Timer function called when a timeout occurs for xg_timer. |
| 132 | This function processes all GTK events in a recursive event loop. |
| 133 | This is done because GTK timer events are not seen by Emacs event |
| 134 | detection, Emacs only looks for X events. When a scroll bar has the |
| 135 | pointer (detected by button press/release events below) an Emacs |
| 136 | timer is started, and this function can then check if the GTK timer |
| 137 | has expired by calling the GTK event loop. |
| 138 | Also, when a menu is active, it has a small timeout before it |
| 139 | pops down the sub menu under it. */ |
| 140 | static void |
| 141 | xg_process_timeouts (timer) |
| 142 | struct atimer *timer; |
| 143 | { |
| 144 | BLOCK_INPUT; |
| 145 | /* Ideally we would like to just handle timer events, like the Xt version |
| 146 | of this does in xterm.c, but there is no such feature in GTK. */ |
| 147 | while (gtk_events_pending ()) |
| 148 | gtk_main_iteration (); |
| 149 | UNBLOCK_INPUT; |
| 150 | } |
| 151 | |
| 152 | /* Start the xg_timer with an interval of 0.1 seconds, if not already started. |
| 153 | xg_process_timeouts is called when the timer expires. The timer |
| 154 | started is continuous, i.e. runs until xg_stop_timer is called. */ |
| 155 | static void |
| 156 | xg_start_timer () |
| 157 | { |
| 158 | if (! xg_timer) |
| 159 | { |
| 160 | EMACS_TIME interval; |
| 161 | EMACS_SET_SECS_USECS (interval, 0, 100000); |
| 162 | xg_timer = start_atimer (ATIMER_CONTINUOUS, |
| 163 | interval, |
| 164 | xg_process_timeouts, |
| 165 | 0); |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | /* Stop the xg_timer if started. */ |
| 170 | static void |
| 171 | xg_stop_timer () |
| 172 | { |
| 173 | if (xg_timer) |
| 174 | { |
| 175 | cancel_atimer (xg_timer); |
| 176 | xg_timer = 0; |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | /* Insert NODE into linked LIST. */ |
| 181 | static void |
| 182 | xg_list_insert (xg_list_node *list, xg_list_node *node) |
| 183 | { |
| 184 | xg_list_node *list_start = list->next; |
| 185 | |
| 186 | if (list_start) list_start->prev = node; |
| 187 | node->next = list_start; |
| 188 | node->prev = 0; |
| 189 | list->next = node; |
| 190 | } |
| 191 | |
| 192 | /* Remove NODE from linked LIST. */ |
| 193 | static void |
| 194 | xg_list_remove (xg_list_node *list, xg_list_node *node) |
| 195 | { |
| 196 | xg_list_node *list_start = list->next; |
| 197 | if (node == list_start) |
| 198 | { |
| 199 | list->next = node->next; |
| 200 | if (list->next) list->next->prev = 0; |
| 201 | } |
| 202 | else |
| 203 | { |
| 204 | node->prev->next = node->next; |
| 205 | if (node->next) node->next->prev = node->prev; |
| 206 | } |
| 207 | } |
| 208 | |
| 209 | /* Allocate and return a utf8 version of STR. If STR is already |
| 210 | utf8 or NULL, just return STR. |
| 211 | If not, a new string is allocated and the caller must free the result |
| 212 | with g_free. */ |
| 213 | static char * |
| 214 | get_utf8_string (str) |
| 215 | char *str; |
| 216 | { |
| 217 | char *utf8_str = str; |
| 218 | |
| 219 | /* If not UTF-8, try current locale. */ |
| 220 | if (str && !g_utf8_validate (str, -1, NULL)) |
| 221 | utf8_str = g_locale_to_utf8 (str, -1, 0, 0, 0); |
| 222 | |
| 223 | return utf8_str; |
| 224 | } |
| 225 | |
| 226 | |
| 227 | \f |
| 228 | /*********************************************************************** |
| 229 | General functions for creating widgets, resizing, events, e.t.c. |
| 230 | ***********************************************************************/ |
| 231 | |
| 232 | /* Make a geometry string and pass that to GTK. It seems this is the |
| 233 | only way to get geometry position right if the user explicitly |
| 234 | asked for a position when starting Emacs. |
| 235 | F is the frame we shall set geometry for. */ |
| 236 | static void |
| 237 | xg_set_geometry (f) |
| 238 | FRAME_PTR f; |
| 239 | { |
| 240 | if (f->output_data.x->size_hint_flags & USPosition) |
| 241 | { |
| 242 | int left = f->output_data.x->left_pos; |
| 243 | int xneg = f->output_data.x->size_hint_flags & XNegative; |
| 244 | int top = f->output_data.x->top_pos; |
| 245 | int yneg = f->output_data.x->size_hint_flags & YNegative; |
| 246 | char geom_str[32]; |
| 247 | |
| 248 | if (xneg) |
| 249 | left = -left; |
| 250 | if (yneg) |
| 251 | top = -top; |
| 252 | |
| 253 | sprintf (geom_str, "=%dx%d%c%d%c%d", |
| 254 | PIXEL_WIDTH (f), |
| 255 | FRAME_TOTAL_PIXEL_HEIGHT (f), |
| 256 | (xneg ? '-' : '+'), left, |
| 257 | (yneg ? '-' : '+'), top); |
| 258 | |
| 259 | if (!gtk_window_parse_geometry (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)), |
| 260 | geom_str)) |
| 261 | fprintf (stderr, "Failed to parse: '%s'\n", geom_str); |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | |
| 266 | /* Resize the outer window of frame F after chainging the height. |
| 267 | This happend when the menu bar or the tool bar is added or removed. |
| 268 | COLUMNS/ROWS is the size the edit area shall have after the resize. */ |
| 269 | static void |
| 270 | xg_resize_outer_widget (f, columns, rows) |
| 271 | FRAME_PTR f; |
| 272 | int columns; |
| 273 | int rows; |
| 274 | { |
| 275 | gtk_window_resize (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)), |
| 276 | PIXEL_WIDTH (f), FRAME_TOTAL_PIXEL_HEIGHT (f)); |
| 277 | |
| 278 | /* base_height is now changed. */ |
| 279 | x_wm_set_size_hint (f, 0, 0); |
| 280 | |
| 281 | /* If we are not mapped yet, set geometry once again, as window |
| 282 | height now have changed. */ |
| 283 | if (! GTK_WIDGET_MAPPED (FRAME_GTK_OUTER_WIDGET (f))) |
| 284 | xg_set_geometry (f); |
| 285 | |
| 286 | xg_frame_set_char_size (f, columns, rows); |
| 287 | gdk_window_process_all_updates (); |
| 288 | } |
| 289 | |
| 290 | /* This gets called after the frame F has been cleared. Since that is |
| 291 | done with X calls, we need to redraw GTK widget (scroll bars). */ |
| 292 | void |
| 293 | xg_frame_cleared (f) |
| 294 | FRAME_PTR f; |
| 295 | { |
| 296 | GtkWidget *w = f->output_data.x->widget; |
| 297 | |
| 298 | if (w) |
| 299 | { |
| 300 | gtk_container_set_reallocate_redraws (GTK_CONTAINER (w), TRUE); |
| 301 | gtk_container_foreach (GTK_CONTAINER (w), |
| 302 | (GtkCallback) gtk_widget_queue_draw, |
| 303 | 0); |
| 304 | gdk_window_process_all_updates (); |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | /* Function to handle resize of our widgets. Since Emacs has some layouts |
| 309 | that does not fit well with GTK standard containers, we do most layout |
| 310 | manually. |
| 311 | F is the frame to resize. |
| 312 | PIXELWIDTH, PIXELHEIGHT is the new size in pixels. */ |
| 313 | void |
| 314 | xg_resize_widgets (f, pixelwidth, pixelheight) |
| 315 | FRAME_PTR f; |
| 316 | int pixelwidth, pixelheight; |
| 317 | { |
| 318 | int mbheight = FRAME_MENUBAR_HEIGHT (f); |
| 319 | int tbheight = FRAME_TOOLBAR_HEIGHT (f); |
| 320 | int rows = PIXEL_TO_CHAR_HEIGHT (f, pixelheight - mbheight - tbheight); |
| 321 | int columns = PIXEL_TO_CHAR_WIDTH (f, pixelwidth); |
| 322 | |
| 323 | if (FRAME_GTK_WIDGET (f) |
| 324 | && (columns != FRAME_WIDTH (f) || rows != FRAME_HEIGHT (f) |
| 325 | || pixelwidth != PIXEL_WIDTH (f) || pixelheight != PIXEL_HEIGHT (f))) |
| 326 | { |
| 327 | struct x_output *x = f->output_data.x; |
| 328 | GtkAllocation all; |
| 329 | |
| 330 | all.y = mbheight + tbheight; |
| 331 | all.x = 0; |
| 332 | |
| 333 | all.width = pixelwidth; |
| 334 | all.height = pixelheight - mbheight - tbheight; |
| 335 | |
| 336 | gtk_widget_size_allocate (x->edit_widget, &all); |
| 337 | |
| 338 | change_frame_size (f, rows, columns, 0, 1, 0); |
| 339 | SET_FRAME_GARBAGED (f); |
| 340 | cancel_mouse_face (f); |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | |
| 345 | /* Update our widget size to be COLS/ROWS characters for frame F. */ |
| 346 | void |
| 347 | xg_frame_set_char_size (f, cols, rows) |
| 348 | FRAME_PTR f; |
| 349 | int cols; |
| 350 | int rows; |
| 351 | { |
| 352 | int pixelheight = CHAR_TO_PIXEL_HEIGHT (f, rows) |
| 353 | + FRAME_MENUBAR_HEIGHT (f) + FRAME_TOOLBAR_HEIGHT (f); |
| 354 | int pixelwidth; |
| 355 | |
| 356 | /* Take into account the size of the scroll bar. Always use the |
| 357 | number of columns occupied by the scroll bar here otherwise we |
| 358 | might end up with a frame width that is not a multiple of the |
| 359 | frame's character width which is bad for vertically split |
| 360 | windows. */ |
| 361 | f->output_data.x->vertical_scroll_bar_extra |
| 362 | = (!FRAME_HAS_VERTICAL_SCROLL_BARS (f) |
| 363 | ? 0 |
| 364 | : (FRAME_SCROLL_BAR_COLS (f) |
| 365 | * FONT_WIDTH (f->output_data.x->font))); |
| 366 | |
| 367 | compute_fringe_widths (f, 0); |
| 368 | |
| 369 | /* CHAR_TO_PIXEL_WIDTH uses vertical_scroll_bar_extra, so call it |
| 370 | after calculating that value. */ |
| 371 | pixelwidth = CHAR_TO_PIXEL_WIDTH (f, cols); |
| 372 | |
| 373 | /* Must resize our top level widget. Font size may have changed, |
| 374 | but not rows/cols. */ |
| 375 | gtk_window_resize (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)), |
| 376 | pixelwidth, pixelheight); |
| 377 | xg_resize_widgets (f, pixelwidth, pixelheight); |
| 378 | |
| 379 | SET_FRAME_GARBAGED (f); |
| 380 | cancel_mouse_face (f); |
| 381 | } |
| 382 | |
| 383 | /* Convert an X Window WSESC to its corresponding GtkWidget. |
| 384 | Must be done like this, because GtkWidget:s can have "hidden" |
| 385 | X Window that aren't accessible. |
| 386 | |
| 387 | Return 0 if no widget match WDESC. */ |
| 388 | GtkWidget * |
| 389 | xg_win_to_widget (wdesc) |
| 390 | Window wdesc; |
| 391 | { |
| 392 | gpointer gdkwin; |
| 393 | GtkWidget *gwdesc = 0; |
| 394 | |
| 395 | BLOCK_INPUT; |
| 396 | gdkwin = gdk_xid_table_lookup (wdesc); |
| 397 | if (gdkwin) |
| 398 | { |
| 399 | GdkEvent event; |
| 400 | event.any.window = gdkwin; |
| 401 | gwdesc = gtk_get_event_widget (&event); |
| 402 | } |
| 403 | |
| 404 | UNBLOCK_INPUT; |
| 405 | return gwdesc; |
| 406 | } |
| 407 | |
| 408 | /* Fill in the GdkColor C so that it represents PIXEL. |
| 409 | W is the widget that color will be used for. Used to find colormap. */ |
| 410 | static void |
| 411 | xg_pix_to_gcolor (w, pixel, c) |
| 412 | GtkWidget *w; |
| 413 | unsigned long pixel; |
| 414 | GdkColor *c; |
| 415 | { |
| 416 | GdkColormap *map = gtk_widget_get_colormap (w); |
| 417 | gdk_colormap_query_color (map, pixel, c); |
| 418 | } |
| 419 | |
| 420 | /* Turning off double buffering for our GtkFixed widget has the side |
| 421 | effect of turning it off also for its children (scroll bars). |
| 422 | But we want those to be double buffered to not flicker so handle |
| 423 | expose manually here. |
| 424 | WIDGET is the GtkFixed widget that gets exposed. |
| 425 | EVENT is the expose event. |
| 426 | USER_DATA is unused. |
| 427 | |
| 428 | Return TRUE to tell GTK that this expose event has been fully handeled |
| 429 | and that GTK shall do nothing more with it. */ |
| 430 | static gboolean |
| 431 | xg_fixed_handle_expose(GtkWidget *widget, |
| 432 | GdkEventExpose *event, |
| 433 | gpointer user_data) |
| 434 | { |
| 435 | GList *iter; |
| 436 | |
| 437 | for (iter = GTK_FIXED (widget)->children; iter; iter = g_list_next (iter)) |
| 438 | { |
| 439 | GtkFixedChild *child_data = (GtkFixedChild *) iter->data; |
| 440 | GtkWidget *child = child_data->widget; |
| 441 | GdkWindow *window = child->window; |
| 442 | GdkRegion *region = gtk_widget_region_intersect (child, event->region); |
| 443 | |
| 444 | if (! gdk_region_empty (region)) |
| 445 | { |
| 446 | GdkEvent child_event; |
| 447 | child_event.expose = *event; |
| 448 | child_event.expose.region = region; |
| 449 | |
| 450 | /* Turn on double buffering, i.e. draw to an off screen area. */ |
| 451 | gdk_window_begin_paint_region (window, region); |
| 452 | |
| 453 | /* Tell child to redraw itself. */ |
| 454 | gdk_region_get_clipbox (region, &child_event.expose.area); |
| 455 | gtk_widget_send_expose (child, &child_event); |
| 456 | gdk_window_process_updates (window, TRUE); |
| 457 | |
| 458 | /* Copy off screen area to the window. */ |
| 459 | gdk_window_end_paint (window); |
| 460 | } |
| 461 | |
| 462 | gdk_region_destroy (region); |
| 463 | } |
| 464 | |
| 465 | return TRUE; |
| 466 | } |
| 467 | |
| 468 | /* Create and set up the GTK widgets for frame F. |
| 469 | Return 0 if creation failed, non-zero otherwise. */ |
| 470 | int |
| 471 | xg_create_frame_widgets (f) |
| 472 | FRAME_PTR f; |
| 473 | { |
| 474 | GtkWidget *wtop; |
| 475 | GtkWidget *wvbox; |
| 476 | GtkWidget *wfixed; |
| 477 | GdkColor bg; |
| 478 | GtkRcStyle *style; |
| 479 | int i; |
| 480 | char *title = 0; |
| 481 | |
| 482 | BLOCK_INPUT; |
| 483 | |
| 484 | wtop = gtk_window_new (GTK_WINDOW_TOPLEVEL); |
| 485 | wvbox = gtk_vbox_new (FALSE, 0); |
| 486 | wfixed = gtk_fixed_new (); /* Must have this to place scroll bars */ |
| 487 | |
| 488 | if (! wtop || ! wvbox || ! wfixed) |
| 489 | { |
| 490 | if (wtop) gtk_widget_destroy (wtop); |
| 491 | if (wvbox) gtk_widget_destroy (wvbox); |
| 492 | if (wfixed) gtk_widget_destroy (wfixed); |
| 493 | |
| 494 | return 0; |
| 495 | } |
| 496 | |
| 497 | /* Use same names as the Xt port does. I.e. Emacs.pane.emacs by default */ |
| 498 | gtk_widget_set_name (wtop, EMACS_CLASS); |
| 499 | gtk_widget_set_name (wvbox, "pane"); |
| 500 | gtk_widget_set_name (wfixed, SDATA (Vx_resource_name)); |
| 501 | |
| 502 | /* If this frame has a title or name, set it in the title bar. */ |
| 503 | if (! NILP (f->title)) title = SDATA (f->title); |
| 504 | else if (! NILP (f->name)) title = SDATA (f->name); |
| 505 | |
| 506 | if (title) gtk_window_set_title (GTK_WINDOW (wtop), title); |
| 507 | |
| 508 | FRAME_GTK_OUTER_WIDGET (f) = wtop; |
| 509 | FRAME_GTK_WIDGET (f) = wfixed; |
| 510 | f->output_data.x->vbox_widget = wvbox; |
| 511 | |
| 512 | gtk_fixed_set_has_window (GTK_FIXED (wfixed), TRUE); |
| 513 | |
| 514 | gtk_widget_set_size_request (wfixed, |
| 515 | PIXEL_WIDTH (f), |
| 516 | PIXEL_HEIGHT (f)); |
| 517 | |
| 518 | gtk_container_add (GTK_CONTAINER (wtop), wvbox); |
| 519 | gtk_box_pack_end (GTK_BOX (wvbox), wfixed, TRUE, TRUE, 0); |
| 520 | |
| 521 | if (FRAME_EXTERNAL_TOOL_BAR (f)) |
| 522 | update_frame_tool_bar (f); |
| 523 | |
| 524 | /* The tool bar is created but first there are no items in it. |
| 525 | This causes it to be zero height. Later items are added, but then |
| 526 | the frame is already mapped, so there is a "jumping" resize. |
| 527 | This makes geometry handling difficult, for example -0-0 will end |
| 528 | up in the wrong place as tool bar height has not been taken into account. |
| 529 | So we cheat a bit by setting a height that is what it will have |
| 530 | later on when tool bar items are added. */ |
| 531 | if (FRAME_EXTERNAL_TOOL_BAR (f) && FRAME_TOOLBAR_HEIGHT (f) == 0) |
| 532 | FRAME_TOOLBAR_HEIGHT (f) = 34; |
| 533 | |
| 534 | |
| 535 | /* We don't want this widget double buffered, because we draw on it |
| 536 | with regular X drawing primitives, so from a GTK/GDK point of |
| 537 | view, the widget is totally blank. When an expose comes, this |
| 538 | will make the widget blank, and then Emacs redraws it. This flickers |
| 539 | a lot, so we turn off double buffering. */ |
| 540 | gtk_widget_set_double_buffered (wfixed, FALSE); |
| 541 | |
| 542 | /* Turning off double buffering above has the side effect of turning |
| 543 | it off also for its children (scroll bars). But we want those |
| 544 | to be double buffered to not flicker so handle expose manually. */ |
| 545 | g_signal_connect (G_OBJECT (wfixed), "expose-event", |
| 546 | G_CALLBACK (xg_fixed_handle_expose), 0); |
| 547 | |
| 548 | /* GTK documents says use gtk_window_set_resizable. But then a user |
| 549 | can't shrink the window from its starting size. */ |
| 550 | gtk_window_set_policy (GTK_WINDOW (wtop), TRUE, TRUE, TRUE); |
| 551 | gtk_window_set_wmclass (GTK_WINDOW (wtop), |
| 552 | SDATA (Vx_resource_name), |
| 553 | SDATA (Vx_resource_class)); |
| 554 | |
| 555 | /* Add callback to do nothing on WM_DELETE_WINDOW. The default in |
| 556 | GTK is to destroy the widget. We want Emacs to do that instead. */ |
| 557 | g_signal_connect (G_OBJECT (wtop), "delete-event", |
| 558 | G_CALLBACK (gtk_true), 0); |
| 559 | |
| 560 | /* Convert our geometry parameters into a geometry string |
| 561 | and specify it. |
| 562 | GTK will itself handle calculating the real position this way. */ |
| 563 | xg_set_geometry (f); |
| 564 | |
| 565 | gtk_widget_add_events (wfixed, |
| 566 | GDK_POINTER_MOTION_MASK |
| 567 | | GDK_EXPOSURE_MASK |
| 568 | | GDK_BUTTON_PRESS_MASK |
| 569 | | GDK_BUTTON_RELEASE_MASK |
| 570 | | GDK_KEY_PRESS_MASK |
| 571 | | GDK_ENTER_NOTIFY_MASK |
| 572 | | GDK_LEAVE_NOTIFY_MASK |
| 573 | | GDK_FOCUS_CHANGE_MASK |
| 574 | | GDK_STRUCTURE_MASK |
| 575 | | GDK_VISIBILITY_NOTIFY_MASK); |
| 576 | |
| 577 | /* Must realize the windows so the X window gets created. It is used |
| 578 | by callers of this function. */ |
| 579 | gtk_widget_realize (wfixed); |
| 580 | FRAME_X_WINDOW (f) = GTK_WIDGET_TO_X_WIN (wfixed); |
| 581 | |
| 582 | /* Since GTK clears its window by filling with the background color, |
| 583 | we must keep X and GTK background in sync. */ |
| 584 | xg_pix_to_gcolor (wfixed, f->output_data.x->background_pixel, &bg); |
| 585 | gtk_widget_modify_bg (wfixed, GTK_STATE_NORMAL, &bg); |
| 586 | |
| 587 | /* Also, do not let any background pixmap to be set, this looks very |
| 588 | bad as Emacs overwrites the background pixmap with its own idea |
| 589 | of background color. */ |
| 590 | style = gtk_widget_get_modifier_style (wfixed); |
| 591 | |
| 592 | /* Must use g_strdup because gtk_widget_modify_style does g_free. */ |
| 593 | style->bg_pixmap_name[GTK_STATE_NORMAL] = g_strdup ("<none>"); |
| 594 | gtk_widget_modify_style (wfixed, style); |
| 595 | |
| 596 | /* GTK does not set any border, and they look bad with GTK. */ |
| 597 | f->output_data.x->border_width = 0; |
| 598 | f->output_data.x->internal_border_width = 0; |
| 599 | |
| 600 | UNBLOCK_INPUT; |
| 601 | |
| 602 | return 1; |
| 603 | } |
| 604 | |
| 605 | /* Set the normal size hints for the window manager, for frame F. |
| 606 | FLAGS is the flags word to use--or 0 meaning preserve the flags |
| 607 | that the window now has. |
| 608 | If USER_POSITION is nonzero, we set the User Position |
| 609 | flag (this is useful when FLAGS is 0). */ |
| 610 | void |
| 611 | x_wm_set_size_hint (f, flags, user_position) |
| 612 | FRAME_PTR f; |
| 613 | long flags; |
| 614 | int user_position; |
| 615 | { |
| 616 | if (FRAME_GTK_OUTER_WIDGET (f)) |
| 617 | { |
| 618 | /* Must use GTK routines here, otherwise GTK resets the size hints |
| 619 | to its own defaults. */ |
| 620 | GdkGeometry size_hints; |
| 621 | gint hint_flags = 0; |
| 622 | int base_width, base_height; |
| 623 | int min_rows = 0, min_cols = 0; |
| 624 | int win_gravity = f->output_data.x->win_gravity; |
| 625 | |
| 626 | if (flags) |
| 627 | { |
| 628 | memset (&size_hints, 0, sizeof (size_hints)); |
| 629 | f->output_data.x->size_hints = size_hints; |
| 630 | f->output_data.x->hint_flags = hint_flags; |
| 631 | } |
| 632 | else |
| 633 | flags = f->output_data.x->size_hint_flags; |
| 634 | |
| 635 | size_hints = f->output_data.x->size_hints; |
| 636 | hint_flags = f->output_data.x->hint_flags; |
| 637 | |
| 638 | hint_flags |= GDK_HINT_RESIZE_INC | GDK_HINT_MIN_SIZE; |
| 639 | size_hints.width_inc = FONT_WIDTH (f->output_data.x->font); |
| 640 | size_hints.height_inc = f->output_data.x->line_height; |
| 641 | |
| 642 | hint_flags |= GDK_HINT_BASE_SIZE; |
| 643 | base_width = CHAR_TO_PIXEL_WIDTH (f, 0); |
| 644 | base_height = CHAR_TO_PIXEL_HEIGHT (f, 0) |
| 645 | + FRAME_MENUBAR_HEIGHT (f) + FRAME_TOOLBAR_HEIGHT (f); |
| 646 | |
| 647 | check_frame_size (f, &min_rows, &min_cols); |
| 648 | |
| 649 | size_hints.base_width = base_width; |
| 650 | size_hints.base_height = base_height; |
| 651 | size_hints.min_width = base_width + min_cols * size_hints.width_inc; |
| 652 | size_hints.min_height = base_height + min_rows * size_hints.height_inc; |
| 653 | |
| 654 | |
| 655 | /* These currently have a one to one mapping with the X values, but I |
| 656 | don't think we should rely on that. */ |
| 657 | hint_flags |= GDK_HINT_WIN_GRAVITY; |
| 658 | size_hints.win_gravity = 0; |
| 659 | if (win_gravity == NorthWestGravity) |
| 660 | size_hints.win_gravity = GDK_GRAVITY_NORTH_WEST; |
| 661 | else if (win_gravity == NorthGravity) |
| 662 | size_hints.win_gravity = GDK_GRAVITY_NORTH; |
| 663 | else if (win_gravity == NorthEastGravity) |
| 664 | size_hints.win_gravity = GDK_GRAVITY_NORTH_EAST; |
| 665 | else if (win_gravity == WestGravity) |
| 666 | size_hints.win_gravity = GDK_GRAVITY_WEST; |
| 667 | else if (win_gravity == CenterGravity) |
| 668 | size_hints.win_gravity = GDK_GRAVITY_CENTER; |
| 669 | else if (win_gravity == EastGravity) |
| 670 | size_hints.win_gravity = GDK_GRAVITY_EAST; |
| 671 | else if (win_gravity == SouthWestGravity) |
| 672 | size_hints.win_gravity = GDK_GRAVITY_SOUTH_WEST; |
| 673 | else if (win_gravity == SouthGravity) |
| 674 | size_hints.win_gravity = GDK_GRAVITY_SOUTH; |
| 675 | else if (win_gravity == SouthEastGravity) |
| 676 | size_hints.win_gravity = GDK_GRAVITY_SOUTH_EAST; |
| 677 | else if (win_gravity == StaticGravity) |
| 678 | size_hints.win_gravity = GDK_GRAVITY_STATIC; |
| 679 | |
| 680 | if (flags & PPosition) hint_flags |= GDK_HINT_POS; |
| 681 | if (flags & USPosition) hint_flags |= GDK_HINT_USER_POS; |
| 682 | if (flags & USSize) hint_flags |= GDK_HINT_USER_SIZE; |
| 683 | |
| 684 | if (user_position) |
| 685 | { |
| 686 | hint_flags &= ~GDK_HINT_POS; |
| 687 | hint_flags |= GDK_HINT_USER_POS; |
| 688 | } |
| 689 | |
| 690 | BLOCK_INPUT; |
| 691 | |
| 692 | gtk_window_set_geometry_hints (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)), |
| 693 | FRAME_GTK_OUTER_WIDGET (f), |
| 694 | &size_hints, |
| 695 | hint_flags); |
| 696 | |
| 697 | f->output_data.x->size_hints = size_hints; |
| 698 | f->output_data.x->hint_flags = hint_flags; |
| 699 | UNBLOCK_INPUT; |
| 700 | } |
| 701 | } |
| 702 | |
| 703 | /* Change background color of a frame. |
| 704 | Since GTK uses the background colour to clear the window, we must |
| 705 | keep the GTK and X colors in sync. |
| 706 | F is the frame to change, |
| 707 | BG is the pixel value to change to. */ |
| 708 | void |
| 709 | xg_set_background_color (f, bg) |
| 710 | FRAME_PTR f; |
| 711 | unsigned long bg; |
| 712 | { |
| 713 | if (FRAME_GTK_WIDGET (f)) |
| 714 | { |
| 715 | GdkColor gdk_bg; |
| 716 | |
| 717 | BLOCK_INPUT; |
| 718 | xg_pix_to_gcolor (FRAME_GTK_WIDGET (f), bg, &gdk_bg); |
| 719 | gtk_widget_modify_bg (FRAME_GTK_WIDGET (f), GTK_STATE_NORMAL, &gdk_bg); |
| 720 | UNBLOCK_INPUT; |
| 721 | } |
| 722 | } |
| 723 | |
| 724 | |
| 725 | \f |
| 726 | /*********************************************************************** |
| 727 | Dialog functions |
| 728 | ***********************************************************************/ |
| 729 | /* Return the dialog title to use for a dialog of type KEY. |
| 730 | This is the encoding used by lwlib. We use the same for GTK. */ |
| 731 | static char * |
| 732 | get_dialog_title (char key) |
| 733 | { |
| 734 | char *title = ""; |
| 735 | |
| 736 | switch (key) { |
| 737 | case 'E': case 'e': |
| 738 | title = "Error"; |
| 739 | break; |
| 740 | |
| 741 | case 'I': case 'i': |
| 742 | title = "Information"; |
| 743 | break; |
| 744 | |
| 745 | case 'L': case 'l': |
| 746 | title = "Prompt"; |
| 747 | break; |
| 748 | |
| 749 | case 'P': case 'p': |
| 750 | title = "Prompt"; |
| 751 | break; |
| 752 | |
| 753 | case 'Q': case 'q': |
| 754 | title = "Question"; |
| 755 | break; |
| 756 | } |
| 757 | |
| 758 | return title; |
| 759 | } |
| 760 | |
| 761 | /* Callback for dialogs that get WM_DELETE_WINDOW. We pop down |
| 762 | the dialog, but return TRUE so the event does not propagate further |
| 763 | in GTK. This prevents GTK from destroying the dialog widget automatically |
| 764 | and we can always destrou the widget manually, regardles of how |
| 765 | it was popped down (button press or WM_DELETE_WINDOW). |
| 766 | W is the dialog widget. |
| 767 | EVENT is the GdkEvent that represents WM_DELETE_WINDOW (not used). |
| 768 | user_data is NULL (not used). |
| 769 | |
| 770 | Returns TRUE to end propagation of event. */ |
| 771 | static gboolean |
| 772 | dialog_delete_callback (w, event, user_data) |
| 773 | GtkWidget *w; |
| 774 | GdkEvent *event; |
| 775 | gpointer user_data; |
| 776 | { |
| 777 | gtk_widget_unmap (w); |
| 778 | return TRUE; |
| 779 | } |
| 780 | |
| 781 | /* Create a popup dialog window. See also xg_create_widget below. |
| 782 | WV is a widget_value describing the dialog. |
| 783 | SELECT_CB is the callback to use when a button has been pressed. |
| 784 | DEACTIVATE_CB is the callback to use when the dialog pops down. |
| 785 | |
| 786 | Returns the GTK dialog widget. */ |
| 787 | static GtkWidget * |
| 788 | create_dialog (wv, select_cb, deactivate_cb) |
| 789 | widget_value *wv; |
| 790 | GCallback select_cb; |
| 791 | GCallback deactivate_cb; |
| 792 | { |
| 793 | char *title = get_dialog_title (wv->name[0]); |
| 794 | int total_buttons = wv->name[1] - '0'; |
| 795 | int right_buttons = wv->name[4] - '0'; |
| 796 | int left_buttons; |
| 797 | int button_nr = 0; |
| 798 | int button_spacing = 10; |
| 799 | GtkWidget *wdialog = gtk_dialog_new (); |
| 800 | widget_value *item; |
| 801 | GtkBox *cur_box; |
| 802 | GtkWidget *wvbox; |
| 803 | GtkWidget *whbox_up; |
| 804 | GtkWidget *whbox_down; |
| 805 | |
| 806 | /* If the number of buttons is greater than 4, make two rows of buttons |
| 807 | instead. This looks better. */ |
| 808 | int make_two_rows = total_buttons > 4; |
| 809 | |
| 810 | if (right_buttons == 0) right_buttons = total_buttons/2; |
| 811 | left_buttons = total_buttons - right_buttons; |
| 812 | |
| 813 | gtk_window_set_title (GTK_WINDOW (wdialog), title); |
| 814 | gtk_widget_set_name (wdialog, "emacs-dialog"); |
| 815 | |
| 816 | cur_box = GTK_BOX (GTK_DIALOG (wdialog)->action_area); |
| 817 | |
| 818 | if (make_two_rows) |
| 819 | { |
| 820 | wvbox = gtk_vbox_new (TRUE, button_spacing); |
| 821 | whbox_up = gtk_hbox_new (FALSE, 0); |
| 822 | whbox_down = gtk_hbox_new (FALSE, 0); |
| 823 | |
| 824 | gtk_box_pack_start (cur_box, wvbox, FALSE, FALSE, 0); |
| 825 | gtk_box_pack_start (GTK_BOX (wvbox), whbox_up, FALSE, FALSE, 0); |
| 826 | gtk_box_pack_start (GTK_BOX (wvbox), whbox_down, FALSE, FALSE, 0); |
| 827 | |
| 828 | cur_box = GTK_BOX (whbox_up); |
| 829 | } |
| 830 | |
| 831 | g_signal_connect (G_OBJECT (wdialog), "delete-event", |
| 832 | G_CALLBACK (dialog_delete_callback), 0); |
| 833 | |
| 834 | if (deactivate_cb) |
| 835 | { |
| 836 | g_signal_connect (G_OBJECT (wdialog), "close", deactivate_cb, 0); |
| 837 | g_signal_connect (G_OBJECT (wdialog), "response", deactivate_cb, 0); |
| 838 | } |
| 839 | |
| 840 | for (item = wv->contents; item; item = item->next) |
| 841 | { |
| 842 | char *utf8_label = get_utf8_string (item->value); |
| 843 | GtkWidget *w; |
| 844 | GtkRequisition req; |
| 845 | |
| 846 | if (item->name && strcmp (item->name, "message") == 0) |
| 847 | { |
| 848 | /* This is the text part of the dialog. */ |
| 849 | w = gtk_label_new (utf8_label); |
| 850 | gtk_box_pack_start (GTK_BOX (GTK_DIALOG (wdialog)->vbox), |
| 851 | gtk_label_new (""), |
| 852 | FALSE, FALSE, 0); |
| 853 | gtk_box_pack_start (GTK_BOX (GTK_DIALOG (wdialog)->vbox), w, |
| 854 | TRUE, TRUE, 0); |
| 855 | gtk_misc_set_alignment (GTK_MISC (w), 0.1, 0.5); |
| 856 | |
| 857 | /* Try to make dialog look better. Must realize first so |
| 858 | the widget can calculate the size it needs. */ |
| 859 | gtk_widget_realize (w); |
| 860 | gtk_widget_size_request (w, &req); |
| 861 | gtk_box_set_spacing (GTK_BOX (GTK_DIALOG (wdialog)->vbox), |
| 862 | req.height); |
| 863 | if (item->value && strlen (item->value) > 0) |
| 864 | button_spacing = 2*req.width/strlen (item->value); |
| 865 | } |
| 866 | else |
| 867 | { |
| 868 | /* This is one button to add to the dialog. */ |
| 869 | w = gtk_button_new_with_mnemonic (utf8_label); |
| 870 | if (! item->enabled) |
| 871 | gtk_widget_set_sensitive (w, FALSE); |
| 872 | if (select_cb) |
| 873 | g_signal_connect (G_OBJECT (w), "clicked", |
| 874 | select_cb, item->call_data); |
| 875 | |
| 876 | gtk_box_pack_start (cur_box, w, TRUE, TRUE, button_spacing); |
| 877 | if (++button_nr == left_buttons) |
| 878 | { |
| 879 | if (make_two_rows) |
| 880 | cur_box = GTK_BOX (whbox_down); |
| 881 | else |
| 882 | gtk_box_pack_start (cur_box, |
| 883 | gtk_label_new (""), |
| 884 | TRUE, TRUE, |
| 885 | button_spacing); |
| 886 | } |
| 887 | } |
| 888 | |
| 889 | if (utf8_label && utf8_label != item->value) |
| 890 | g_free (utf8_label); |
| 891 | } |
| 892 | |
| 893 | return wdialog; |
| 894 | } |
| 895 | |
| 896 | |
| 897 | enum |
| 898 | { |
| 899 | XG_FILE_NOT_DONE, |
| 900 | XG_FILE_OK, |
| 901 | XG_FILE_CANCEL, |
| 902 | XG_FILE_DESTROYED, |
| 903 | }; |
| 904 | |
| 905 | /* Callback function invoked when the Ok button is pressed in |
| 906 | a file dialog. |
| 907 | W is the file dialog widget, |
| 908 | ARG points to an integer where we record what has happend. */ |
| 909 | static void |
| 910 | xg_file_sel_ok (w, arg) |
| 911 | GtkWidget *w; |
| 912 | gpointer arg; |
| 913 | { |
| 914 | *(int*)arg = XG_FILE_OK; |
| 915 | } |
| 916 | |
| 917 | /* Callback function invoked when the Cancel button is pressed in |
| 918 | a file dialog. |
| 919 | W is the file dialog widget, |
| 920 | ARG points to an integer where we record what has happend. */ |
| 921 | static void |
| 922 | xg_file_sel_cancel (w, arg) |
| 923 | GtkWidget *w; |
| 924 | gpointer arg; |
| 925 | { |
| 926 | *(int*)arg = XG_FILE_CANCEL; |
| 927 | } |
| 928 | |
| 929 | /* Callback function invoked when the file dialog is destroyed (i.e. |
| 930 | popped down). We must keep track of this, because if this |
| 931 | happens, GTK destroys the widget. But if for example, Ok is pressed, |
| 932 | the dialog is popped down, but the dialog widget is not destroyed. |
| 933 | W is the file dialog widget, |
| 934 | ARG points to an integer where we record what has happend. */ |
| 935 | static void |
| 936 | xg_file_sel_destroy (w, arg) |
| 937 | GtkWidget *w; |
| 938 | gpointer arg; |
| 939 | { |
| 940 | *(int*)arg = XG_FILE_DESTROYED; |
| 941 | } |
| 942 | |
| 943 | /* Read a file name from the user using a file dialog. |
| 944 | F is the current frame. |
| 945 | PROMPT is a prompt to show to the user. May not be NULL. |
| 946 | DEFAULT_FILENAME is a default selection to be displayed. May be NULL. |
| 947 | If MUSTMATCH_P is non-zero, the returned file name must be an existing |
| 948 | file. |
| 949 | |
| 950 | Returns a file name or NULL if no file was selected. |
| 951 | The returned string must be freed by the caller. */ |
| 952 | char * |
| 953 | xg_get_file_name (f, prompt, default_filename, mustmatch_p) |
| 954 | FRAME_PTR f; |
| 955 | char *prompt; |
| 956 | char *default_filename; |
| 957 | int mustmatch_p; |
| 958 | { |
| 959 | GtkWidget *filewin; |
| 960 | GtkFileSelection *filesel; |
| 961 | int filesel_done = XG_FILE_NOT_DONE; |
| 962 | char *fn = 0; |
| 963 | |
| 964 | filewin = gtk_file_selection_new (prompt); |
| 965 | filesel = GTK_FILE_SELECTION (filewin); |
| 966 | |
| 967 | gtk_widget_set_name (filewin, "emacs-filedialog"); |
| 968 | |
| 969 | gtk_window_set_transient_for (GTK_WINDOW (filewin), |
| 970 | GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f))); |
| 971 | gtk_window_set_destroy_with_parent (GTK_WINDOW (filewin), TRUE); |
| 972 | |
| 973 | g_signal_connect (G_OBJECT (filesel->ok_button), |
| 974 | "clicked", |
| 975 | G_CALLBACK (xg_file_sel_ok), |
| 976 | &filesel_done); |
| 977 | g_signal_connect (G_OBJECT (filesel->cancel_button), |
| 978 | "clicked", |
| 979 | G_CALLBACK (xg_file_sel_cancel), |
| 980 | &filesel_done); |
| 981 | g_signal_connect (G_OBJECT (filesel), |
| 982 | "destroy", |
| 983 | G_CALLBACK (xg_file_sel_destroy), |
| 984 | &filesel_done); |
| 985 | |
| 986 | if (default_filename) |
| 987 | gtk_file_selection_set_filename (filesel, default_filename); |
| 988 | |
| 989 | if (mustmatch_p) |
| 990 | { |
| 991 | /* The selection_entry part of filesel is not documented. */ |
| 992 | gtk_widget_set_sensitive (filesel->selection_entry, FALSE); |
| 993 | gtk_file_selection_hide_fileop_buttons (filesel); |
| 994 | } |
| 995 | |
| 996 | |
| 997 | gtk_widget_show_all (filewin); |
| 998 | |
| 999 | while (filesel_done == XG_FILE_NOT_DONE) |
| 1000 | gtk_main_iteration (); |
| 1001 | |
| 1002 | if (filesel_done == XG_FILE_OK) |
| 1003 | fn = xstrdup ((char*) gtk_file_selection_get_filename (filesel)); |
| 1004 | |
| 1005 | if (filesel_done != XG_FILE_DESTROYED) |
| 1006 | gtk_widget_destroy (filewin); |
| 1007 | |
| 1008 | return fn; |
| 1009 | } |
| 1010 | |
| 1011 | \f |
| 1012 | /*********************************************************************** |
| 1013 | Menu functions. |
| 1014 | ***********************************************************************/ |
| 1015 | |
| 1016 | /* The name of menu items that can be used for citomization. Since GTK |
| 1017 | RC files are very crude and primitive, we have to set this on all |
| 1018 | menu item names so a user can easily cutomize menu items. */ |
| 1019 | |
| 1020 | #define MENU_ITEM_NAME "emacs-menuitem" |
| 1021 | |
| 1022 | |
| 1023 | /* Linked list of all allocated struct xg_menu_cb_data. Used for marking |
| 1024 | during GC. The next member points to the items. */ |
| 1025 | static xg_list_node xg_menu_cb_list; |
| 1026 | |
| 1027 | /* Linked list of all allocated struct xg_menu_item_cb_data. Used for marking |
| 1028 | during GC. The next member points to the items. */ |
| 1029 | static xg_list_node xg_menu_item_cb_list; |
| 1030 | |
| 1031 | /* Allocate and initialize CL_DATA if NULL, otherwise increase ref_count. |
| 1032 | F is the frame CL_DATA will be initialized for. |
| 1033 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 1034 | |
| 1035 | The menu bar and all sub menus under the menu bar in a frame |
| 1036 | share the same structure, hence the reference count. |
| 1037 | |
| 1038 | Returns CL_DATA if CL_DATA is not NULL, or a pointer to a newly |
| 1039 | allocated xg_menu_cb_data if CL_DATA is NULL. */ |
| 1040 | static xg_menu_cb_data * |
| 1041 | make_cl_data (cl_data, f, highlight_cb) |
| 1042 | xg_menu_cb_data *cl_data; |
| 1043 | FRAME_PTR f; |
| 1044 | GCallback highlight_cb; |
| 1045 | { |
| 1046 | if (! cl_data) |
| 1047 | { |
| 1048 | cl_data = (xg_menu_cb_data*) xmalloc (sizeof (*cl_data)); |
| 1049 | cl_data->f = f; |
| 1050 | cl_data->menu_bar_vector = f->menu_bar_vector; |
| 1051 | cl_data->menu_bar_items_used = f->menu_bar_items_used; |
| 1052 | cl_data->highlight_cb = highlight_cb; |
| 1053 | cl_data->ref_count = 0; |
| 1054 | |
| 1055 | xg_list_insert (&xg_menu_cb_list, &cl_data->ptrs); |
| 1056 | } |
| 1057 | |
| 1058 | cl_data->ref_count++; |
| 1059 | |
| 1060 | return cl_data; |
| 1061 | } |
| 1062 | |
| 1063 | /* Update CL_DATA with values from frame F and with HIGHLIGHT_CB. |
| 1064 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 1065 | |
| 1066 | When the menu bar is updated, menu items may have been added and/or |
| 1067 | removed, so menu_bar_vector and menu_bar_items_used change. We must |
| 1068 | then update CL_DATA since it is used to determine which menu |
| 1069 | item that is invoked in the menu. |
| 1070 | HIGHLIGHT_CB could change, there is no check that the same |
| 1071 | function is given when modifying a menu bar as was given when |
| 1072 | creating the menu bar. */ |
| 1073 | static void |
| 1074 | update_cl_data (cl_data, f, highlight_cb) |
| 1075 | xg_menu_cb_data *cl_data; |
| 1076 | FRAME_PTR f; |
| 1077 | GCallback highlight_cb; |
| 1078 | { |
| 1079 | if (cl_data) |
| 1080 | { |
| 1081 | cl_data->f = f; |
| 1082 | cl_data->menu_bar_vector = f->menu_bar_vector; |
| 1083 | cl_data->menu_bar_items_used = f->menu_bar_items_used; |
| 1084 | cl_data->highlight_cb = highlight_cb; |
| 1085 | } |
| 1086 | } |
| 1087 | |
| 1088 | /* Decrease reference count for CL_DATA. |
| 1089 | If reference count is zero, free CL_DATA. */ |
| 1090 | static void |
| 1091 | unref_cl_data (cl_data) |
| 1092 | xg_menu_cb_data *cl_data; |
| 1093 | { |
| 1094 | if (cl_data && cl_data->ref_count > 0) |
| 1095 | { |
| 1096 | cl_data->ref_count--; |
| 1097 | if (cl_data->ref_count == 0) |
| 1098 | { |
| 1099 | xg_list_remove (&xg_menu_cb_list, &cl_data->ptrs); |
| 1100 | xfree (cl_data); |
| 1101 | } |
| 1102 | } |
| 1103 | } |
| 1104 | |
| 1105 | /* Function that marks all lisp data during GC. */ |
| 1106 | void |
| 1107 | xg_mark_data () |
| 1108 | { |
| 1109 | xg_list_node *iter; |
| 1110 | |
| 1111 | for (iter = xg_menu_cb_list.next; iter; iter = iter->next) |
| 1112 | mark_object (&((xg_menu_cb_data *) iter)->menu_bar_vector); |
| 1113 | |
| 1114 | for (iter = xg_menu_item_cb_list.next; iter; iter = iter->next) |
| 1115 | { |
| 1116 | xg_menu_item_cb_data *cb_data = (xg_menu_item_cb_data *) iter; |
| 1117 | |
| 1118 | if (! NILP (cb_data->help)) |
| 1119 | mark_object (&cb_data->help); |
| 1120 | } |
| 1121 | } |
| 1122 | |
| 1123 | |
| 1124 | /* Callback called when a menu item is destroyed. Used to free data. |
| 1125 | W is the widget that is being destroyed (not used). |
| 1126 | CLIENT_DATA points to the xg_menu_item_cb_data associated with the W. */ |
| 1127 | static void |
| 1128 | menuitem_destroy_callback (w, client_data) |
| 1129 | GtkWidget *w; |
| 1130 | gpointer client_data; |
| 1131 | { |
| 1132 | if (client_data) |
| 1133 | { |
| 1134 | xg_menu_item_cb_data *data = (xg_menu_item_cb_data*) client_data; |
| 1135 | xg_list_remove (&xg_menu_item_cb_list, &data->ptrs); |
| 1136 | xfree (data); |
| 1137 | } |
| 1138 | } |
| 1139 | |
| 1140 | /* Callback called when the pointer enters/leaves a menu item. |
| 1141 | W is the menu item. |
| 1142 | EVENT is either an enter event or leave event. |
| 1143 | CLIENT_DATA points to the xg_menu_item_cb_data associated with the W. |
| 1144 | |
| 1145 | Returns FALSE to tell GTK to keep processing this event. */ |
| 1146 | static gboolean |
| 1147 | menuitem_highlight_callback (w, event, client_data) |
| 1148 | GtkWidget *w; |
| 1149 | GdkEventCrossing *event; |
| 1150 | gpointer client_data; |
| 1151 | { |
| 1152 | if (client_data) |
| 1153 | { |
| 1154 | xg_menu_item_cb_data *data = (xg_menu_item_cb_data*) client_data; |
| 1155 | gpointer call_data = event->type == GDK_LEAVE_NOTIFY ? 0 : client_data; |
| 1156 | |
| 1157 | if (! NILP (data->help) && data->cl_data->highlight_cb) |
| 1158 | { |
| 1159 | GtkCallback func = (GtkCallback) data->cl_data->highlight_cb; |
| 1160 | (*func) (w, call_data); |
| 1161 | } |
| 1162 | } |
| 1163 | |
| 1164 | return FALSE; |
| 1165 | } |
| 1166 | |
| 1167 | /* Callback called when a menu is destroyed. Used to free data. |
| 1168 | W is the widget that is being destroyed (not used). |
| 1169 | CLIENT_DATA points to the xg_menu_cb_data associated with W. */ |
| 1170 | static void |
| 1171 | menu_destroy_callback (w, client_data) |
| 1172 | GtkWidget *w; |
| 1173 | gpointer client_data; |
| 1174 | { |
| 1175 | unref_cl_data ((xg_menu_cb_data*) client_data); |
| 1176 | } |
| 1177 | |
| 1178 | /* Callback called when a menu does a grab or ungrab. That means the |
| 1179 | menu has been activated or deactivated. |
| 1180 | Used to start a timer so the small timeout the menus in GTK uses before |
| 1181 | popping down a menu is seen by Emacs (see xg_process_timeouts above). |
| 1182 | W is the widget that does the grab (not used). |
| 1183 | UNGRAB_P is TRUE if this is an ungrab, FALSE if it is a grab. |
| 1184 | CLIENT_DATA is NULL (not used). */ |
| 1185 | static void |
| 1186 | menu_grab_callback (GtkWidget *widget, |
| 1187 | gboolean ungrab_p, |
| 1188 | gpointer client_data) |
| 1189 | { |
| 1190 | /* Keep track of total number of grabs. */ |
| 1191 | static int cnt; |
| 1192 | |
| 1193 | if (ungrab_p) cnt--; |
| 1194 | else cnt++; |
| 1195 | |
| 1196 | if (cnt > 0 && ! xg_timer) xg_start_timer (); |
| 1197 | else if (cnt == 0 && xg_timer) xg_stop_timer (); |
| 1198 | } |
| 1199 | |
| 1200 | /* Make a GTK widget that contains both UTF8_LABEL and UTF8_KEY (both |
| 1201 | must be non-NULL) and can be inserted into a menu item. |
| 1202 | |
| 1203 | Returns the GtkHBox. */ |
| 1204 | static GtkWidget * |
| 1205 | make_widget_for_menu_item (utf8_label, utf8_key) |
| 1206 | char *utf8_label; |
| 1207 | char *utf8_key; |
| 1208 | { |
| 1209 | GtkWidget *wlbl; |
| 1210 | GtkWidget *wkey; |
| 1211 | GtkWidget *wbox; |
| 1212 | |
| 1213 | wbox = gtk_hbox_new (FALSE, 0); |
| 1214 | wlbl = gtk_label_new_with_mnemonic (utf8_label); |
| 1215 | wkey = gtk_label_new (utf8_key); |
| 1216 | |
| 1217 | gtk_misc_set_alignment (GTK_MISC (wlbl), 0.0, 0.5); |
| 1218 | gtk_misc_set_alignment (GTK_MISC (wkey), 0.0, 0.5); |
| 1219 | |
| 1220 | gtk_box_pack_start (GTK_BOX (wbox), wlbl, TRUE, TRUE, 0); |
| 1221 | gtk_box_pack_start (GTK_BOX (wbox), wkey, FALSE, FALSE, 0); |
| 1222 | |
| 1223 | gtk_widget_set_name (wlbl, MENU_ITEM_NAME); |
| 1224 | gtk_widget_set_name (wkey, MENU_ITEM_NAME); |
| 1225 | gtk_widget_set_name (wbox, MENU_ITEM_NAME); |
| 1226 | |
| 1227 | return wbox; |
| 1228 | } |
| 1229 | |
| 1230 | /* Make and return a menu item widget with the key to the right. |
| 1231 | UTF8_LABEL is the text for the menu item (GTK uses UTF8 internally). |
| 1232 | UTF8_KEY is the text representing the key binding. |
| 1233 | ITEM is the widget_value describing the menu item. |
| 1234 | |
| 1235 | GROUP is an in/out parameter. If the menu item to be created is not |
| 1236 | part of any radio menu group, *GROUP contains NULL on entry and exit. |
| 1237 | If the menu item to be created is part of a radio menu group, on entry |
| 1238 | *GROUP contains the group to use, or NULL if this is the first item |
| 1239 | in the group. On exit, *GROUP contains the radio item group. |
| 1240 | |
| 1241 | Unfortunately, keys don't line up as nicely as in Motif, |
| 1242 | but the MacOS X version doesn't either, so I guess that is OK. */ |
| 1243 | static GtkWidget * |
| 1244 | make_menu_item (utf8_label, utf8_key, item, group) |
| 1245 | char *utf8_label; |
| 1246 | char *utf8_key; |
| 1247 | widget_value *item; |
| 1248 | GSList **group; |
| 1249 | { |
| 1250 | GtkWidget *w; |
| 1251 | GtkWidget *wtoadd = 0; |
| 1252 | |
| 1253 | if (utf8_key) |
| 1254 | wtoadd = make_widget_for_menu_item (utf8_label, utf8_key); |
| 1255 | |
| 1256 | if (item->button_type == BUTTON_TYPE_TOGGLE) |
| 1257 | { |
| 1258 | *group = NULL; |
| 1259 | if (utf8_key) w = gtk_check_menu_item_new (); |
| 1260 | else w = gtk_check_menu_item_new_with_mnemonic (utf8_label); |
| 1261 | gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), item->selected); |
| 1262 | } |
| 1263 | else if (item->button_type == BUTTON_TYPE_RADIO) |
| 1264 | { |
| 1265 | if (utf8_key) w = gtk_radio_menu_item_new (*group); |
| 1266 | else w = gtk_radio_menu_item_new_with_mnemonic (*group, utf8_label); |
| 1267 | *group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (w)); |
| 1268 | if (item->selected) |
| 1269 | gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), TRUE); |
| 1270 | } |
| 1271 | else |
| 1272 | { |
| 1273 | *group = NULL; |
| 1274 | if (utf8_key) w = gtk_menu_item_new (); |
| 1275 | else w = gtk_menu_item_new_with_mnemonic (utf8_label); |
| 1276 | } |
| 1277 | |
| 1278 | if (wtoadd) gtk_container_add (GTK_CONTAINER (w), wtoadd); |
| 1279 | if (! item->enabled) gtk_widget_set_sensitive (w, FALSE); |
| 1280 | |
| 1281 | return w; |
| 1282 | } |
| 1283 | |
| 1284 | /* Return non-zero if LABEL specifies a separator (GTK only has one |
| 1285 | separator type) */ |
| 1286 | static int |
| 1287 | xg_separator_p (char *label) |
| 1288 | { |
| 1289 | if (! label) return 0; |
| 1290 | else if (strlen (label) > 3 |
| 1291 | && strncmp (label, "--", 2) == 0 |
| 1292 | && label[2] != '-') |
| 1293 | { |
| 1294 | static char* separator_names[] = { |
| 1295 | "space", |
| 1296 | "no-line", |
| 1297 | "single-line", |
| 1298 | "double-line", |
| 1299 | "single-dashed-line", |
| 1300 | "double-dashed-line", |
| 1301 | "shadow-etched-in", |
| 1302 | "shadow-etched-out", |
| 1303 | "shadow-etched-in-dash", |
| 1304 | "shadow-etched-out-dash", |
| 1305 | "shadow-double-etched-in", |
| 1306 | "shadow-double-etched-out", |
| 1307 | "shadow-double-etched-in-dash", |
| 1308 | "shadow-double-etched-out-dash", |
| 1309 | 0, |
| 1310 | }; |
| 1311 | |
| 1312 | int i; |
| 1313 | |
| 1314 | label += 2; |
| 1315 | for (i = 0; separator_names[i]; ++i) |
| 1316 | if (strcmp (label, separator_names[i]) == 0) |
| 1317 | return 1; |
| 1318 | } |
| 1319 | else |
| 1320 | { |
| 1321 | /* Old-style separator, maybe. It's a separator if it contains |
| 1322 | only dashes. */ |
| 1323 | while (*label == '-') |
| 1324 | ++label; |
| 1325 | if (*label == 0) return 1; |
| 1326 | } |
| 1327 | |
| 1328 | return 0; |
| 1329 | } |
| 1330 | |
| 1331 | GtkWidget *xg_did_tearoff; |
| 1332 | |
| 1333 | /* Callback invoked when a detached menu window is removed. Here we |
| 1334 | delete the popup menu. |
| 1335 | WIDGET is the top level window that is removed (the parent of the menu). |
| 1336 | EVENT is the event that triggers the window removal. |
| 1337 | CLIENT_DATA points to the menu that is detached. |
| 1338 | |
| 1339 | Returns TRUE to tell GTK to stop processing this event. */ |
| 1340 | static gboolean |
| 1341 | tearoff_remove (widget, event, client_data) |
| 1342 | GtkWidget *widget; |
| 1343 | GdkEvent *event; |
| 1344 | gpointer client_data; |
| 1345 | { |
| 1346 | gtk_widget_destroy (GTK_WIDGET (client_data)); |
| 1347 | return TRUE; |
| 1348 | } |
| 1349 | |
| 1350 | /* Callback invoked when a menu is detached. It sets the xg_did_tearoff |
| 1351 | variable. |
| 1352 | WIDGET is the GtkTearoffMenuItem. |
| 1353 | CLIENT_DATA is not used. */ |
| 1354 | static void |
| 1355 | tearoff_activate (widget, client_data) |
| 1356 | GtkWidget *widget; |
| 1357 | gpointer client_data; |
| 1358 | { |
| 1359 | GtkWidget *menu = gtk_widget_get_parent (widget); |
| 1360 | if (! gtk_menu_get_tearoff_state (GTK_MENU (menu))) |
| 1361 | return; |
| 1362 | |
| 1363 | xg_did_tearoff = menu; |
| 1364 | } |
| 1365 | |
| 1366 | /* If a detach of a popup menu is done, this function should be called |
| 1367 | to keep the menu around until the detached window is removed. |
| 1368 | MENU is the top level menu for the popup, |
| 1369 | SUBMENU is the menu that got detached (that is MENU or a |
| 1370 | submenu of MENU), see the xg_did_tearoff variable. */ |
| 1371 | void |
| 1372 | xg_keep_popup (menu, submenu) |
| 1373 | GtkWidget *menu; |
| 1374 | GtkWidget *submenu; |
| 1375 | { |
| 1376 | GtkWidget *p; |
| 1377 | |
| 1378 | /* Find the top widget for the detached menu. */ |
| 1379 | p = gtk_widget_get_toplevel (submenu); |
| 1380 | |
| 1381 | /* Delay destroying the menu until the detached menu is removed. */ |
| 1382 | g_signal_connect (G_OBJECT (p), "unmap_event", |
| 1383 | G_CALLBACK (tearoff_remove), menu); |
| 1384 | } |
| 1385 | |
| 1386 | /* Create a menu item widget, and connect the callbacks. |
| 1387 | ITEM decribes the menu item. |
| 1388 | F is the frame the created menu belongs to. |
| 1389 | SELECT_CB is the callback to use when a menu item is selected. |
| 1390 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 1391 | CL_DATA points to the callback data to be used for this menu. |
| 1392 | GROUP is an in/out parameter. If the menu item to be created is not |
| 1393 | part of any radio menu group, *GROUP contains NULL on entry and exit. |
| 1394 | If the menu item to be created is part of a radio menu group, on entry |
| 1395 | *GROUP contains the group to use, or NULL if this is the first item |
| 1396 | in the group. On exit, *GROUP contains the radio item group. |
| 1397 | |
| 1398 | Returns the created GtkWidget. */ |
| 1399 | static GtkWidget * |
| 1400 | xg_create_one_menuitem (item, f, select_cb, highlight_cb, cl_data, group) |
| 1401 | widget_value *item; |
| 1402 | FRAME_PTR f; |
| 1403 | GCallback select_cb; |
| 1404 | GCallback highlight_cb; |
| 1405 | xg_menu_cb_data *cl_data; |
| 1406 | GSList **group; |
| 1407 | { |
| 1408 | char *utf8_label; |
| 1409 | char *utf8_key; |
| 1410 | GtkWidget *w; |
| 1411 | xg_menu_item_cb_data *cb_data; |
| 1412 | |
| 1413 | utf8_label = get_utf8_string (item->name); |
| 1414 | utf8_key = get_utf8_string (item->key); |
| 1415 | |
| 1416 | w = make_menu_item (utf8_label, utf8_key, item, group); |
| 1417 | |
| 1418 | if (utf8_label && utf8_label != item->name) g_free (utf8_label); |
| 1419 | if (utf8_key && utf8_key != item->key) g_free (utf8_key); |
| 1420 | |
| 1421 | cb_data = xmalloc (sizeof (xg_menu_item_cb_data)); |
| 1422 | |
| 1423 | xg_list_insert (&xg_menu_item_cb_list, &cb_data->ptrs); |
| 1424 | |
| 1425 | cb_data->unhighlight_id = cb_data->highlight_id = cb_data->select_id = 0; |
| 1426 | cb_data->help = item->help; |
| 1427 | cb_data->cl_data = cl_data; |
| 1428 | cb_data->call_data = item->call_data; |
| 1429 | |
| 1430 | g_signal_connect (G_OBJECT (w), |
| 1431 | "destroy", |
| 1432 | G_CALLBACK (menuitem_destroy_callback), |
| 1433 | cb_data); |
| 1434 | |
| 1435 | /* Put cb_data in widget, so we can get at it when modifying menubar */ |
| 1436 | g_object_set_data (G_OBJECT (w), XG_ITEM_DATA, cb_data); |
| 1437 | |
| 1438 | /* final item, not a submenu */ |
| 1439 | if (item->call_data && ! item->contents) |
| 1440 | { |
| 1441 | if (select_cb) |
| 1442 | cb_data->select_id |
| 1443 | = g_signal_connect (G_OBJECT (w), "activate", select_cb, cb_data); |
| 1444 | } |
| 1445 | |
| 1446 | if (! NILP (item->help) && highlight_cb) |
| 1447 | { |
| 1448 | /* We use enter/leave notify instead of select/deselect because |
| 1449 | select/deselect doesn't go well with detached menus. */ |
| 1450 | cb_data->highlight_id |
| 1451 | = g_signal_connect (G_OBJECT (w), |
| 1452 | "enter-notify-event", |
| 1453 | G_CALLBACK (menuitem_highlight_callback), |
| 1454 | cb_data); |
| 1455 | cb_data->unhighlight_id |
| 1456 | = g_signal_connect (G_OBJECT (w), |
| 1457 | "leave-notify-event", |
| 1458 | G_CALLBACK (menuitem_highlight_callback), |
| 1459 | cb_data); |
| 1460 | } |
| 1461 | |
| 1462 | return w; |
| 1463 | } |
| 1464 | |
| 1465 | static GtkWidget *create_menus P_ ((widget_value *, FRAME_PTR, GCallback, |
| 1466 | GCallback, GCallback, int, int, int, |
| 1467 | GtkWidget *, xg_menu_cb_data *, char *)); |
| 1468 | |
| 1469 | /* Create a full menu tree specified by DATA. |
| 1470 | F is the frame the created menu belongs to. |
| 1471 | SELECT_CB is the callback to use when a menu item is selected. |
| 1472 | DEACTIVATE_CB is the callback to use when a sub menu is not shown anymore. |
| 1473 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 1474 | POP_UP_P is non-zero if we shall create a popup menu. |
| 1475 | MENU_BAR_P is non-zero if we shall create a menu bar. |
| 1476 | ADD_TEAROFF_P is non-zero if we shall add a teroff menu item. Ignored |
| 1477 | if MENU_BAR_P is non-zero. |
| 1478 | TOPMENU is the topmost GtkWidget that others shall be placed under. |
| 1479 | It may be NULL, in that case we create the appropriate widget |
| 1480 | (menu bar or menu item depending on POP_UP_P and MENU_BAR_P) |
| 1481 | CL_DATA is the callback data we shall use for this menu, or NULL |
| 1482 | if we haven't set the first callback yet. |
| 1483 | NAME is the name to give to the top level menu if this function |
| 1484 | creates it. May be NULL to not set any name. |
| 1485 | |
| 1486 | Returns the top level GtkWidget. This is TOPLEVEL if TOPLEVEL is |
| 1487 | not NULL. |
| 1488 | |
| 1489 | This function calls itself to create submenus. */ |
| 1490 | |
| 1491 | static GtkWidget * |
| 1492 | create_menus (data, f, select_cb, deactivate_cb, highlight_cb, |
| 1493 | pop_up_p, menu_bar_p, add_tearoff_p, topmenu, cl_data, name) |
| 1494 | widget_value *data; |
| 1495 | FRAME_PTR f; |
| 1496 | GCallback select_cb; |
| 1497 | GCallback deactivate_cb; |
| 1498 | GCallback highlight_cb; |
| 1499 | int pop_up_p; |
| 1500 | int menu_bar_p; |
| 1501 | int add_tearoff_p; |
| 1502 | GtkWidget *topmenu; |
| 1503 | xg_menu_cb_data *cl_data; |
| 1504 | char *name; |
| 1505 | { |
| 1506 | widget_value *item; |
| 1507 | GtkWidget *wmenu = topmenu; |
| 1508 | GSList *group = NULL; |
| 1509 | |
| 1510 | if (! topmenu) |
| 1511 | { |
| 1512 | if (! menu_bar_p) wmenu = gtk_menu_new (); |
| 1513 | else wmenu = gtk_menu_bar_new (); |
| 1514 | |
| 1515 | /* Put cl_data on the top menu for easier access. */ |
| 1516 | cl_data = make_cl_data (cl_data, f, highlight_cb); |
| 1517 | g_object_set_data (G_OBJECT (wmenu), XG_FRAME_DATA, (gpointer)cl_data); |
| 1518 | g_signal_connect (G_OBJECT (wmenu), "destroy", |
| 1519 | G_CALLBACK (menu_destroy_callback), cl_data); |
| 1520 | |
| 1521 | if (name) |
| 1522 | gtk_widget_set_name (wmenu, name); |
| 1523 | |
| 1524 | if (deactivate_cb) |
| 1525 | g_signal_connect (G_OBJECT (wmenu), |
| 1526 | "deactivate", deactivate_cb, 0); |
| 1527 | |
| 1528 | g_signal_connect (G_OBJECT (wmenu), |
| 1529 | "grab-notify", G_CALLBACK (menu_grab_callback), 0); |
| 1530 | } |
| 1531 | |
| 1532 | if (! menu_bar_p && add_tearoff_p) |
| 1533 | { |
| 1534 | GtkWidget *tearoff = gtk_tearoff_menu_item_new (); |
| 1535 | gtk_menu_shell_append (GTK_MENU_SHELL (wmenu), tearoff); |
| 1536 | |
| 1537 | g_signal_connect (G_OBJECT (tearoff), "activate", |
| 1538 | G_CALLBACK (tearoff_activate), 0); |
| 1539 | } |
| 1540 | |
| 1541 | for (item = data; item; item = item->next) |
| 1542 | { |
| 1543 | GtkWidget *w; |
| 1544 | |
| 1545 | if (pop_up_p && !item->contents && !item->call_data |
| 1546 | && !xg_separator_p (item->name)) |
| 1547 | { |
| 1548 | char *utf8_label; |
| 1549 | /* A title for a popup. We do the same as GTK does when |
| 1550 | creating titles, but it does not look good. */ |
| 1551 | group = NULL; |
| 1552 | utf8_label = get_utf8_string (item->name); |
| 1553 | |
| 1554 | gtk_menu_set_title (GTK_MENU (wmenu), utf8_label); |
| 1555 | w = gtk_menu_item_new_with_mnemonic (utf8_label); |
| 1556 | gtk_widget_set_sensitive (w, FALSE); |
| 1557 | if (utf8_label && utf8_label != item->name) g_free (utf8_label); |
| 1558 | } |
| 1559 | else if (xg_separator_p (item->name)) |
| 1560 | { |
| 1561 | group = NULL; |
| 1562 | /* GTK only have one separator type. */ |
| 1563 | w = gtk_separator_menu_item_new (); |
| 1564 | } |
| 1565 | else |
| 1566 | { |
| 1567 | w = xg_create_one_menuitem (item, |
| 1568 | f, |
| 1569 | item->contents ? 0 : select_cb, |
| 1570 | highlight_cb, |
| 1571 | cl_data, |
| 1572 | &group); |
| 1573 | |
| 1574 | if (item->contents) |
| 1575 | { |
| 1576 | GtkWidget *submenu = create_menus (item->contents, |
| 1577 | f, |
| 1578 | select_cb, |
| 1579 | deactivate_cb, |
| 1580 | highlight_cb, |
| 1581 | 0, |
| 1582 | 0, |
| 1583 | 1, |
| 1584 | 0, |
| 1585 | cl_data, |
| 1586 | 0); |
| 1587 | gtk_menu_item_set_submenu (GTK_MENU_ITEM (w), submenu); |
| 1588 | } |
| 1589 | } |
| 1590 | |
| 1591 | gtk_menu_shell_append (GTK_MENU_SHELL (wmenu), w); |
| 1592 | gtk_widget_set_name (w, MENU_ITEM_NAME); |
| 1593 | } |
| 1594 | |
| 1595 | return wmenu; |
| 1596 | } |
| 1597 | |
| 1598 | /* Create a menubar, popup menu or dialog, depending on the TYPE argument. |
| 1599 | TYPE can be "menubar", "popup" for popup menu, or "dialog" for a dialog |
| 1600 | with some text and buttons. |
| 1601 | F is the frame the created item belongs to. |
| 1602 | NAME is the name to use for the top widget. |
| 1603 | VAL is a widget_value structure describing items to be created. |
| 1604 | SELECT_CB is the callback to use when a menu item is selected or |
| 1605 | a dialog button is pressed. |
| 1606 | DEACTIVATE_CB is the callback to use when an item is deactivated. |
| 1607 | For a menu, when a sub menu is not shown anymore, for a dialog it is |
| 1608 | called when the dialog is popped down. |
| 1609 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 1610 | |
| 1611 | Returns the widget created. */ |
| 1612 | GtkWidget * |
| 1613 | xg_create_widget (type, name, f, val, |
| 1614 | select_cb, deactivate_cb, highlight_cb) |
| 1615 | char *type; |
| 1616 | char *name; |
| 1617 | FRAME_PTR f; |
| 1618 | widget_value *val; |
| 1619 | GCallback select_cb; |
| 1620 | GCallback deactivate_cb; |
| 1621 | GCallback highlight_cb; |
| 1622 | { |
| 1623 | GtkWidget *w = 0; |
| 1624 | if (strcmp (type, "dialog") == 0) |
| 1625 | { |
| 1626 | w = create_dialog (val, select_cb, deactivate_cb); |
| 1627 | gtk_window_set_transient_for (GTK_WINDOW (w), |
| 1628 | GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f))); |
| 1629 | gtk_window_set_destroy_with_parent (GTK_WINDOW (w), TRUE); |
| 1630 | |
| 1631 | if (w) |
| 1632 | gtk_widget_set_name (w, "emacs-dialog"); |
| 1633 | } |
| 1634 | else if (strcmp (type, "menubar") == 0 || strcmp (type, "popup") == 0) |
| 1635 | { |
| 1636 | w = create_menus (val->contents, |
| 1637 | f, |
| 1638 | select_cb, |
| 1639 | deactivate_cb, |
| 1640 | highlight_cb, |
| 1641 | strcmp (type, "popup") == 0, |
| 1642 | strcmp (type, "menubar") == 0, |
| 1643 | 1, |
| 1644 | 0, |
| 1645 | 0, |
| 1646 | name); |
| 1647 | |
| 1648 | /* Set the cursor to an arrow for popup menus when they are mapped. |
| 1649 | This is done by default for menu bar menus. */ |
| 1650 | if (strcmp (type, "popup") == 0) |
| 1651 | { |
| 1652 | /* Must realize so the GdkWindow inside the widget is created. */ |
| 1653 | gtk_widget_realize (w); |
| 1654 | xg_set_cursor (w, &xg_left_ptr_cursor); |
| 1655 | } |
| 1656 | } |
| 1657 | else |
| 1658 | { |
| 1659 | fprintf (stderr, "bad type in xg_create_widget: %s, doing nothing\n", |
| 1660 | type); |
| 1661 | } |
| 1662 | |
| 1663 | return w; |
| 1664 | } |
| 1665 | |
| 1666 | /* Return the label for menu item WITEM. */ |
| 1667 | static const char * |
| 1668 | xg_get_menu_item_label (witem) |
| 1669 | GtkMenuItem *witem; |
| 1670 | { |
| 1671 | GtkLabel *wlabel = GTK_LABEL (gtk_bin_get_child (GTK_BIN (witem))); |
| 1672 | return gtk_label_get_label (wlabel); |
| 1673 | } |
| 1674 | |
| 1675 | /* Return non-zero if the menu item WITEM has the text LABEL. */ |
| 1676 | static int |
| 1677 | xg_item_label_same_p (witem, label) |
| 1678 | GtkMenuItem *witem; |
| 1679 | char *label; |
| 1680 | { |
| 1681 | int is_same = 0; |
| 1682 | char *utf8_label = get_utf8_string (label); |
| 1683 | const char *old_label = witem ? xg_get_menu_item_label (witem) : 0; |
| 1684 | |
| 1685 | if (! old_label && ! utf8_label) |
| 1686 | is_same = 1; |
| 1687 | else if (old_label && utf8_label) |
| 1688 | is_same = strcmp (utf8_label, old_label) == 0; |
| 1689 | |
| 1690 | if (utf8_label && utf8_label != label) g_free (utf8_label); |
| 1691 | |
| 1692 | return is_same; |
| 1693 | } |
| 1694 | |
| 1695 | /* Remove widgets in LIST from container WCONT. */ |
| 1696 | static void |
| 1697 | remove_from_container (wcont, list) |
| 1698 | GtkWidget *wcont; |
| 1699 | GList *list; |
| 1700 | { |
| 1701 | GList *iter; |
| 1702 | |
| 1703 | for (iter = list; iter; iter = g_list_next (iter)) |
| 1704 | { |
| 1705 | GtkWidget *w = GTK_WIDGET (iter->data); |
| 1706 | |
| 1707 | /* Add a ref to w so we can explicitly destroy it later. */ |
| 1708 | gtk_widget_ref (w); |
| 1709 | gtk_container_remove (GTK_CONTAINER (wcont), w); |
| 1710 | |
| 1711 | /* If there is a menu under this widget that has been detached, |
| 1712 | there is a reference to it, and just removing w from the |
| 1713 | container does not destroy the submenu. By explicitly |
| 1714 | destroying w we make sure the submenu is destroyed, thus |
| 1715 | removing the detached window also if there was one. */ |
| 1716 | gtk_widget_destroy (w); |
| 1717 | } |
| 1718 | } |
| 1719 | |
| 1720 | /* Update the top level names in MENUBAR (i.e. not submenus). |
| 1721 | F is the frame the menu bar belongs to. |
| 1722 | *LIST is a list with the current menu bar names (menu item widgets). |
| 1723 | ITER is the item within *LIST that shall be updated. |
| 1724 | POS is the numerical position, starting at 0, of ITER in *LIST. |
| 1725 | VAL describes what the menu bar shall look like after the update. |
| 1726 | SELECT_CB is the callback to use when a menu item is selected. |
| 1727 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 1728 | CL_DATA points to the callback data to be used for this menu bar. |
| 1729 | |
| 1730 | This function calls itself to walk through the menu bar names. */ |
| 1731 | static void |
| 1732 | xg_update_menubar (menubar, f, list, iter, pos, val, |
| 1733 | select_cb, highlight_cb, cl_data) |
| 1734 | GtkWidget *menubar; |
| 1735 | FRAME_PTR f; |
| 1736 | GList **list; |
| 1737 | GList *iter; |
| 1738 | int pos; |
| 1739 | widget_value *val; |
| 1740 | GCallback select_cb; |
| 1741 | GCallback highlight_cb; |
| 1742 | xg_menu_cb_data *cl_data; |
| 1743 | { |
| 1744 | if (! iter && ! val) |
| 1745 | return; |
| 1746 | else if (iter && ! val) |
| 1747 | { |
| 1748 | /* Item(s) have been removed. Remove all remaining items. */ |
| 1749 | remove_from_container (menubar, iter); |
| 1750 | |
| 1751 | /* All updated. */ |
| 1752 | val = 0; |
| 1753 | iter = 0; |
| 1754 | } |
| 1755 | else if (! iter && val) |
| 1756 | { |
| 1757 | /* Item(s) added. Add all new items in one call. */ |
| 1758 | create_menus (val, f, select_cb, 0, highlight_cb, |
| 1759 | 0, 1, 0, menubar, cl_data, 0); |
| 1760 | |
| 1761 | /* All updated. */ |
| 1762 | val = 0; |
| 1763 | iter = 0; |
| 1764 | } |
| 1765 | /* Below this neither iter or val is NULL */ |
| 1766 | else if (xg_item_label_same_p (GTK_MENU_ITEM (iter->data), val->name)) |
| 1767 | { |
| 1768 | /* This item is still the same, check next item. */ |
| 1769 | val = val->next; |
| 1770 | iter = g_list_next (iter); |
| 1771 | ++pos; |
| 1772 | } |
| 1773 | else /* This item is changed. */ |
| 1774 | { |
| 1775 | GtkMenuItem *witem = GTK_MENU_ITEM (iter->data); |
| 1776 | GtkMenuItem *witem2 = 0; |
| 1777 | int val_in_menubar = 0; |
| 1778 | int iter_in_new_menubar = 0; |
| 1779 | GList *iter2; |
| 1780 | widget_value *cur; |
| 1781 | |
| 1782 | /* See if the changed entry (val) is present later in the menu bar */ |
| 1783 | for (iter2 = iter; |
| 1784 | iter2 && ! val_in_menubar; |
| 1785 | iter2 = g_list_next (iter2)) |
| 1786 | { |
| 1787 | witem2 = GTK_MENU_ITEM (iter2->data); |
| 1788 | val_in_menubar = xg_item_label_same_p (witem2, val->name); |
| 1789 | } |
| 1790 | |
| 1791 | /* See if the current entry (iter) is present later in the |
| 1792 | specification for the new menu bar. */ |
| 1793 | for (cur = val; cur && ! iter_in_new_menubar; cur = cur->next) |
| 1794 | iter_in_new_menubar = xg_item_label_same_p (witem, cur->name); |
| 1795 | |
| 1796 | if (val_in_menubar && ! iter_in_new_menubar) |
| 1797 | { |
| 1798 | int nr = pos; |
| 1799 | |
| 1800 | /* This corresponds to: |
| 1801 | Current: A B C |
| 1802 | New: A C |
| 1803 | Remove B. */ |
| 1804 | |
| 1805 | gtk_widget_ref (GTK_WIDGET (witem)); |
| 1806 | gtk_container_remove (GTK_CONTAINER (menubar), GTK_WIDGET (witem)); |
| 1807 | gtk_widget_destroy (GTK_WIDGET (witem)); |
| 1808 | |
| 1809 | /* Must get new list since the old changed. */ |
| 1810 | g_list_free (*list); |
| 1811 | *list = iter = gtk_container_get_children (GTK_CONTAINER (menubar)); |
| 1812 | while (nr-- > 0) iter = g_list_next (iter); |
| 1813 | } |
| 1814 | else if (! val_in_menubar && ! iter_in_new_menubar) |
| 1815 | { |
| 1816 | /* This corresponds to: |
| 1817 | Current: A B C |
| 1818 | New: A X C |
| 1819 | Rename B to X. This might seem to be a strange thing to do, |
| 1820 | since if there is a menu under B it will be totally wrong for X. |
| 1821 | But consider editing a C file. Then there is a C-mode menu |
| 1822 | (corresponds to B above). |
| 1823 | If then doing C-x C-f the minibuf menu (X above) replaces the |
| 1824 | C-mode menu. When returning from the minibuffer, we get |
| 1825 | back the C-mode menu. Thus we do: |
| 1826 | Rename B to X (C-mode to minibuf menu) |
| 1827 | Rename X to B (minibuf to C-mode menu). |
| 1828 | If the X menu hasn't been invoked, the menu under B |
| 1829 | is up to date when leaving the minibuffer. */ |
| 1830 | GtkLabel *wlabel = GTK_LABEL (gtk_bin_get_child (GTK_BIN (witem))); |
| 1831 | char *utf8_label = get_utf8_string (val->name); |
| 1832 | |
| 1833 | gtk_label_set_text_with_mnemonic (wlabel, utf8_label); |
| 1834 | |
| 1835 | iter = g_list_next (iter); |
| 1836 | val = val->next; |
| 1837 | ++pos; |
| 1838 | } |
| 1839 | else if (! val_in_menubar && iter_in_new_menubar) |
| 1840 | { |
| 1841 | /* This corresponds to: |
| 1842 | Current: A B C |
| 1843 | New: A X B C |
| 1844 | Insert X. */ |
| 1845 | |
| 1846 | int nr = pos; |
| 1847 | GList *group = 0; |
| 1848 | GtkWidget *w = xg_create_one_menuitem (val, |
| 1849 | f, |
| 1850 | select_cb, |
| 1851 | highlight_cb, |
| 1852 | cl_data, |
| 1853 | &group); |
| 1854 | |
| 1855 | gtk_widget_set_name (w, MENU_ITEM_NAME); |
| 1856 | gtk_menu_shell_insert (GTK_MENU_SHELL (menubar), w, pos); |
| 1857 | |
| 1858 | g_list_free (*list); |
| 1859 | *list = iter = gtk_container_get_children (GTK_CONTAINER (menubar)); |
| 1860 | while (nr-- > 0) iter = g_list_next (iter); |
| 1861 | iter = g_list_next (iter); |
| 1862 | val = val->next; |
| 1863 | ++pos; |
| 1864 | } |
| 1865 | else /* if (val_in_menubar && iter_in_new_menubar) */ |
| 1866 | { |
| 1867 | int nr = pos; |
| 1868 | /* This corresponds to: |
| 1869 | Current: A B C |
| 1870 | New: A C B |
| 1871 | Move C before B */ |
| 1872 | |
| 1873 | gtk_widget_ref (GTK_WIDGET (witem2)); |
| 1874 | gtk_container_remove (GTK_CONTAINER (menubar), GTK_WIDGET (witem2)); |
| 1875 | gtk_menu_shell_insert (GTK_MENU_SHELL (menubar), |
| 1876 | GTK_WIDGET (witem2), pos); |
| 1877 | gtk_widget_unref (GTK_WIDGET (witem2)); |
| 1878 | |
| 1879 | g_list_free (*list); |
| 1880 | *list = iter = gtk_container_get_children (GTK_CONTAINER (menubar)); |
| 1881 | while (nr-- > 0) iter = g_list_next (iter); |
| 1882 | val = val->next; |
| 1883 | ++pos; |
| 1884 | } |
| 1885 | } |
| 1886 | |
| 1887 | /* Update the rest of the menu bar. */ |
| 1888 | xg_update_menubar (menubar, f, list, iter, pos, val, |
| 1889 | select_cb, highlight_cb, cl_data); |
| 1890 | } |
| 1891 | |
| 1892 | /* Update the menu item W so it corresponds to VAL. |
| 1893 | SELECT_CB is the callback to use when a menu item is selected. |
| 1894 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 1895 | CL_DATA is the data to set in the widget for menu invokation. */ |
| 1896 | static void |
| 1897 | xg_update_menu_item (val, w, select_cb, highlight_cb, cl_data) |
| 1898 | widget_value *val; |
| 1899 | GtkWidget *w; |
| 1900 | GCallback select_cb; |
| 1901 | GCallback highlight_cb; |
| 1902 | xg_menu_cb_data *cl_data; |
| 1903 | { |
| 1904 | GtkWidget *wchild; |
| 1905 | GtkLabel *wlbl = 0; |
| 1906 | GtkLabel *wkey = 0; |
| 1907 | char *utf8_label; |
| 1908 | char *utf8_key; |
| 1909 | const char *old_label = 0; |
| 1910 | const char *old_key = 0; |
| 1911 | xg_menu_item_cb_data *cb_data; |
| 1912 | |
| 1913 | wchild = gtk_bin_get_child (GTK_BIN (w)); |
| 1914 | utf8_label = get_utf8_string (val->name); |
| 1915 | utf8_key = get_utf8_string (val->key); |
| 1916 | |
| 1917 | /* See if W is a menu item with a key. See make_menu_item above. */ |
| 1918 | if (GTK_IS_HBOX (wchild)) |
| 1919 | { |
| 1920 | GList *list = gtk_container_get_children (GTK_CONTAINER (wchild)); |
| 1921 | |
| 1922 | wlbl = GTK_LABEL (list->data); |
| 1923 | wkey = GTK_LABEL (list->next->data); |
| 1924 | g_list_free (list); |
| 1925 | |
| 1926 | if (! utf8_key) |
| 1927 | { |
| 1928 | /* Remove the key and keep just the label. */ |
| 1929 | gtk_widget_ref (GTK_WIDGET (wlbl)); |
| 1930 | gtk_container_remove (GTK_CONTAINER (w), wchild); |
| 1931 | gtk_container_add (GTK_CONTAINER (w), GTK_WIDGET (wlbl)); |
| 1932 | wkey = 0; |
| 1933 | } |
| 1934 | |
| 1935 | } |
| 1936 | else /* Just a label. */ |
| 1937 | { |
| 1938 | wlbl = GTK_LABEL (wchild); |
| 1939 | |
| 1940 | /* Check if there is now a key. */ |
| 1941 | if (utf8_key) |
| 1942 | { |
| 1943 | GtkWidget *wtoadd = make_widget_for_menu_item (utf8_label, utf8_key); |
| 1944 | GList *list = gtk_container_get_children (GTK_CONTAINER (wtoadd)); |
| 1945 | |
| 1946 | wlbl = GTK_LABEL (list->data); |
| 1947 | wkey = GTK_LABEL (list->next->data); |
| 1948 | g_list_free (list); |
| 1949 | |
| 1950 | gtk_container_remove (GTK_CONTAINER (w), wchild); |
| 1951 | gtk_container_add (GTK_CONTAINER (w), wtoadd); |
| 1952 | } |
| 1953 | } |
| 1954 | |
| 1955 | |
| 1956 | if (wkey) old_key = gtk_label_get_label (wkey); |
| 1957 | if (wlbl) old_label = gtk_label_get_label (wlbl); |
| 1958 | |
| 1959 | if (wkey && utf8_key && (! old_key || strcmp (utf8_key, old_key) != 0)) |
| 1960 | gtk_label_set_text (wkey, utf8_key); |
| 1961 | |
| 1962 | if (! old_label || strcmp (utf8_label, old_label) != 0) |
| 1963 | gtk_label_set_text_with_mnemonic (wlbl, utf8_label); |
| 1964 | |
| 1965 | if (utf8_key && utf8_key != val->key) g_free (utf8_key); |
| 1966 | if (utf8_label && utf8_label != val->name) g_free (utf8_label); |
| 1967 | |
| 1968 | if (! val->enabled && GTK_WIDGET_SENSITIVE (w)) |
| 1969 | gtk_widget_set_sensitive (w, FALSE); |
| 1970 | else if (val->enabled && ! GTK_WIDGET_SENSITIVE (w)) |
| 1971 | gtk_widget_set_sensitive (w, TRUE); |
| 1972 | |
| 1973 | cb_data = (xg_menu_item_cb_data*) g_object_get_data (G_OBJECT (w), |
| 1974 | XG_ITEM_DATA); |
| 1975 | if (cb_data) |
| 1976 | { |
| 1977 | cb_data->call_data = val->call_data; |
| 1978 | cb_data->help = val->help; |
| 1979 | cb_data->cl_data = cl_data; |
| 1980 | |
| 1981 | /* We assume the callback functions don't change. */ |
| 1982 | if (val->call_data && ! val->contents) |
| 1983 | { |
| 1984 | /* This item shall have a select callback. */ |
| 1985 | if (! cb_data->select_id) |
| 1986 | cb_data->select_id |
| 1987 | = g_signal_connect (G_OBJECT (w), "activate", |
| 1988 | select_cb, cb_data); |
| 1989 | } |
| 1990 | else if (cb_data->select_id) |
| 1991 | { |
| 1992 | g_signal_handler_disconnect (w, cb_data->select_id); |
| 1993 | cb_data->select_id = 0; |
| 1994 | } |
| 1995 | |
| 1996 | if (NILP (cb_data->help)) |
| 1997 | { |
| 1998 | /* Shall not have help. Remove if any existed previously. */ |
| 1999 | if (cb_data->highlight_id) |
| 2000 | { |
| 2001 | g_signal_handler_disconnect (G_OBJECT (w), |
| 2002 | cb_data->highlight_id); |
| 2003 | cb_data->highlight_id = 0; |
| 2004 | } |
| 2005 | if (cb_data->unhighlight_id) |
| 2006 | { |
| 2007 | g_signal_handler_disconnect (G_OBJECT (w), |
| 2008 | cb_data->unhighlight_id); |
| 2009 | cb_data->unhighlight_id = 0; |
| 2010 | } |
| 2011 | } |
| 2012 | else if (! cb_data->highlight_id && highlight_cb) |
| 2013 | { |
| 2014 | /* Have help now, but didn't previously. Add callback. */ |
| 2015 | cb_data->highlight_id |
| 2016 | = g_signal_connect (G_OBJECT (w), |
| 2017 | "enter-notify-event", |
| 2018 | G_CALLBACK (menuitem_highlight_callback), |
| 2019 | cb_data); |
| 2020 | cb_data->unhighlight_id |
| 2021 | = g_signal_connect (G_OBJECT (w), |
| 2022 | "leave-notify-event", |
| 2023 | G_CALLBACK (menuitem_highlight_callback), |
| 2024 | cb_data); |
| 2025 | } |
| 2026 | } |
| 2027 | } |
| 2028 | |
| 2029 | /* Update the toggle menu item W so it corresponds to VAL. */ |
| 2030 | static void |
| 2031 | xg_update_toggle_item (val, w) |
| 2032 | widget_value *val; |
| 2033 | GtkWidget *w; |
| 2034 | { |
| 2035 | gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), val->selected); |
| 2036 | } |
| 2037 | |
| 2038 | /* Update the radio menu item W so it corresponds to VAL. */ |
| 2039 | static void |
| 2040 | xg_update_radio_item (val, w) |
| 2041 | widget_value *val; |
| 2042 | GtkWidget *w; |
| 2043 | { |
| 2044 | gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), val->selected); |
| 2045 | } |
| 2046 | |
| 2047 | /* Update the sub menu SUBMENU and all its children so it corresponds to VAL. |
| 2048 | SUBMENU may be NULL, in that case a new menu is created. |
| 2049 | F is the frame the menu bar belongs to. |
| 2050 | VAL describes the contents of the menu bar. |
| 2051 | SELECT_CB is the callback to use when a menu item is selected. |
| 2052 | DEACTIVATE_CB is the callback to use when a sub menu is not shown anymore. |
| 2053 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 2054 | CL_DATA is the call back data to use for any newly created items. |
| 2055 | |
| 2056 | Returns the updated submenu widget, that is SUBMENU unless SUBMENU |
| 2057 | was NULL. */ |
| 2058 | |
| 2059 | static GtkWidget * |
| 2060 | xg_update_submenu (submenu, f, val, |
| 2061 | select_cb, deactivate_cb, highlight_cb, cl_data) |
| 2062 | GtkWidget *submenu; |
| 2063 | FRAME_PTR f; |
| 2064 | widget_value *val; |
| 2065 | GCallback select_cb; |
| 2066 | GCallback deactivate_cb; |
| 2067 | GCallback highlight_cb; |
| 2068 | xg_menu_cb_data *cl_data; |
| 2069 | { |
| 2070 | GtkWidget *newsub = submenu; |
| 2071 | GList *list = 0; |
| 2072 | GList *iter; |
| 2073 | widget_value *cur; |
| 2074 | int has_tearoff_p = 0; |
| 2075 | GList *first_radio = 0; |
| 2076 | |
| 2077 | if (submenu) |
| 2078 | list = gtk_container_get_children (GTK_CONTAINER (submenu)); |
| 2079 | |
| 2080 | for (cur = val, iter = list; |
| 2081 | cur && iter; |
| 2082 | iter = g_list_next (iter), cur = cur->next) |
| 2083 | { |
| 2084 | GtkWidget *w = GTK_WIDGET (iter->data); |
| 2085 | |
| 2086 | /* Skip tearoff items, they have no counterpart in val. */ |
| 2087 | if (GTK_IS_TEAROFF_MENU_ITEM (w)) |
| 2088 | { |
| 2089 | has_tearoff_p = 1; |
| 2090 | iter = g_list_next (iter); |
| 2091 | if (iter) w = GTK_WIDGET (iter->data); |
| 2092 | else break; |
| 2093 | } |
| 2094 | |
| 2095 | /* Remember first radio button in a group. If we get a mismatch in |
| 2096 | a radio group we must rebuild the whole group so that the connections |
| 2097 | in GTK becomes correct. */ |
| 2098 | if (cur->button_type == BUTTON_TYPE_RADIO && ! first_radio) |
| 2099 | first_radio = iter; |
| 2100 | else if (cur->button_type != BUTTON_TYPE_RADIO |
| 2101 | && ! GTK_IS_RADIO_MENU_ITEM (w)) |
| 2102 | first_radio = 0; |
| 2103 | |
| 2104 | if (GTK_IS_SEPARATOR_MENU_ITEM (w)) |
| 2105 | { |
| 2106 | if (! xg_separator_p (cur->name)) |
| 2107 | break; |
| 2108 | } |
| 2109 | else if (GTK_IS_CHECK_MENU_ITEM (w)) |
| 2110 | { |
| 2111 | if (cur->button_type != BUTTON_TYPE_TOGGLE) |
| 2112 | break; |
| 2113 | xg_update_toggle_item (cur, w); |
| 2114 | xg_update_menu_item (cur, w, select_cb, highlight_cb, cl_data); |
| 2115 | } |
| 2116 | else if (GTK_IS_RADIO_MENU_ITEM (w)) |
| 2117 | { |
| 2118 | if (cur->button_type != BUTTON_TYPE_RADIO) |
| 2119 | break; |
| 2120 | xg_update_radio_item (cur, w); |
| 2121 | xg_update_menu_item (cur, w, select_cb, highlight_cb, cl_data); |
| 2122 | } |
| 2123 | else if (GTK_IS_MENU_ITEM (w)) |
| 2124 | { |
| 2125 | GtkMenuItem *witem = GTK_MENU_ITEM (w); |
| 2126 | GtkWidget *sub; |
| 2127 | |
| 2128 | if (cur->button_type != BUTTON_TYPE_NONE || |
| 2129 | xg_separator_p (cur->name)) |
| 2130 | break; |
| 2131 | |
| 2132 | xg_update_menu_item (cur, w, select_cb, highlight_cb, cl_data); |
| 2133 | |
| 2134 | sub = gtk_menu_item_get_submenu (witem); |
| 2135 | if (sub && ! cur->contents) |
| 2136 | { |
| 2137 | /* Not a submenu anymore. */ |
| 2138 | gtk_widget_ref (sub); |
| 2139 | gtk_menu_item_remove_submenu (witem); |
| 2140 | gtk_widget_destroy (sub); |
| 2141 | } |
| 2142 | else if (cur->contents) |
| 2143 | { |
| 2144 | GtkWidget *nsub; |
| 2145 | |
| 2146 | nsub = xg_update_submenu (sub, f, cur->contents, |
| 2147 | select_cb, deactivate_cb, |
| 2148 | highlight_cb, cl_data); |
| 2149 | |
| 2150 | /* If this item just became a submenu, we must set it. */ |
| 2151 | if (nsub != sub) |
| 2152 | gtk_menu_item_set_submenu (witem, nsub); |
| 2153 | } |
| 2154 | } |
| 2155 | else |
| 2156 | { |
| 2157 | /* Structural difference. Remove everything from here and down |
| 2158 | in SUBMENU. */ |
| 2159 | break; |
| 2160 | } |
| 2161 | } |
| 2162 | |
| 2163 | /* Remove widgets from first structual change. */ |
| 2164 | if (iter) |
| 2165 | { |
| 2166 | /* If we are adding new menu items below, we must remove from |
| 2167 | first radio button so that radio groups become correct. */ |
| 2168 | if (cur && first_radio) remove_from_container (submenu, first_radio); |
| 2169 | else remove_from_container (submenu, iter); |
| 2170 | } |
| 2171 | |
| 2172 | if (cur) |
| 2173 | { |
| 2174 | /* More items added. Create them. */ |
| 2175 | newsub = create_menus (cur, |
| 2176 | f, |
| 2177 | select_cb, |
| 2178 | deactivate_cb, |
| 2179 | highlight_cb, |
| 2180 | 0, |
| 2181 | 0, |
| 2182 | ! has_tearoff_p, |
| 2183 | submenu, |
| 2184 | cl_data, |
| 2185 | 0); |
| 2186 | } |
| 2187 | |
| 2188 | if (list) g_list_free (list); |
| 2189 | |
| 2190 | return newsub; |
| 2191 | } |
| 2192 | |
| 2193 | /* Update the MENUBAR. |
| 2194 | F is the frame the menu bar belongs to. |
| 2195 | VAL describes the contents of the menu bar. |
| 2196 | If DEEP_P is non-zero, rebuild all but the top level menu names in |
| 2197 | the MENUBAR. If DEEP_P is zero, just rebuild the names in the menubar. |
| 2198 | SELECT_CB is the callback to use when a menu item is selected. |
| 2199 | DEACTIVATE_CB is the callback to use when a sub menu is not shown anymore. |
| 2200 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. */ |
| 2201 | void |
| 2202 | xg_modify_menubar_widgets (menubar, f, val, deep_p, |
| 2203 | select_cb, deactivate_cb, highlight_cb) |
| 2204 | GtkWidget *menubar; |
| 2205 | FRAME_PTR f; |
| 2206 | widget_value *val; |
| 2207 | int deep_p; |
| 2208 | GCallback select_cb; |
| 2209 | GCallback deactivate_cb; |
| 2210 | GCallback highlight_cb; |
| 2211 | { |
| 2212 | xg_menu_cb_data *cl_data; |
| 2213 | GList *list = gtk_container_get_children (GTK_CONTAINER (menubar)); |
| 2214 | |
| 2215 | if (! list) return; |
| 2216 | |
| 2217 | cl_data = (xg_menu_cb_data*) g_object_get_data (G_OBJECT (menubar), |
| 2218 | XG_FRAME_DATA); |
| 2219 | |
| 2220 | if (! deep_p) |
| 2221 | { |
| 2222 | widget_value *cur = val->contents; |
| 2223 | xg_update_menubar (menubar, f, &list, list, 0, cur, |
| 2224 | select_cb, highlight_cb, cl_data); |
| 2225 | } |
| 2226 | else |
| 2227 | { |
| 2228 | widget_value *cur; |
| 2229 | |
| 2230 | /* Update all sub menus. |
| 2231 | We must keep the submenu names (GTK menu item widgets) since the |
| 2232 | X Window in the XEvent that activates the menu are those widgets. */ |
| 2233 | |
| 2234 | /* Update cl_data, menu_item things in F may have changed. */ |
| 2235 | update_cl_data (cl_data, f, highlight_cb); |
| 2236 | |
| 2237 | for (cur = val->contents; cur; cur = cur->next) |
| 2238 | { |
| 2239 | GList *iter; |
| 2240 | GtkWidget *sub = 0; |
| 2241 | GtkWidget *newsub; |
| 2242 | GtkMenuItem *witem; |
| 2243 | |
| 2244 | /* Find sub menu that corresponds to val and update it. */ |
| 2245 | for (iter = list ; iter; iter = g_list_next (iter)) |
| 2246 | { |
| 2247 | witem = GTK_MENU_ITEM (iter->data); |
| 2248 | if (xg_item_label_same_p (witem, cur->name)) |
| 2249 | { |
| 2250 | sub = gtk_menu_item_get_submenu (witem); |
| 2251 | break; |
| 2252 | } |
| 2253 | } |
| 2254 | |
| 2255 | newsub = xg_update_submenu (sub, |
| 2256 | f, |
| 2257 | cur->contents, |
| 2258 | select_cb, |
| 2259 | deactivate_cb, |
| 2260 | highlight_cb, |
| 2261 | cl_data); |
| 2262 | /* sub may still be NULL. If we just updated non deep and added |
| 2263 | a new menu bar item, it has no sub menu yet. So we set the |
| 2264 | newly created sub menu under witem. */ |
| 2265 | if (newsub != sub) |
| 2266 | gtk_menu_item_set_submenu (witem, newsub); |
| 2267 | |
| 2268 | } |
| 2269 | } |
| 2270 | |
| 2271 | g_list_free (list); |
| 2272 | gtk_widget_show_all (menubar); |
| 2273 | } |
| 2274 | |
| 2275 | /* Recompute all the widgets of frame F, when the menu bar has been |
| 2276 | changed. Value is non-zero if widgets were updated. */ |
| 2277 | |
| 2278 | int |
| 2279 | xg_update_frame_menubar (f) |
| 2280 | FRAME_PTR f; |
| 2281 | { |
| 2282 | struct x_output *x = f->output_data.x; |
| 2283 | GtkRequisition req; |
| 2284 | |
| 2285 | if (!x->menubar_widget || GTK_WIDGET_MAPPED (x->menubar_widget)) |
| 2286 | return 0; |
| 2287 | |
| 2288 | BLOCK_INPUT; |
| 2289 | |
| 2290 | gtk_box_pack_start (GTK_BOX (x->vbox_widget), x->menubar_widget, |
| 2291 | FALSE, FALSE, 0); |
| 2292 | gtk_box_reorder_child (GTK_BOX (x->vbox_widget), x->menubar_widget, 0); |
| 2293 | |
| 2294 | gtk_widget_show_all (x->menubar_widget); |
| 2295 | gtk_widget_size_request (x->menubar_widget, &req); |
| 2296 | |
| 2297 | FRAME_MENUBAR_HEIGHT (f) = req.height; |
| 2298 | |
| 2299 | /* The height has changed, resize outer widget and set columns |
| 2300 | rows to what we had before adding the menu bar. */ |
| 2301 | xg_resize_outer_widget (f, FRAME_WIDTH (f), FRAME_HEIGHT (f)); |
| 2302 | |
| 2303 | SET_FRAME_GARBAGED (f); |
| 2304 | UNBLOCK_INPUT; |
| 2305 | |
| 2306 | return 1; |
| 2307 | } |
| 2308 | |
| 2309 | /* Get rid of the menu bar of frame F, and free its storage. |
| 2310 | This is used when deleting a frame, and when turning off the menu bar. */ |
| 2311 | |
| 2312 | void |
| 2313 | free_frame_menubar (f) |
| 2314 | FRAME_PTR f; |
| 2315 | { |
| 2316 | struct x_output *x = f->output_data.x; |
| 2317 | |
| 2318 | if (x->menubar_widget) |
| 2319 | { |
| 2320 | BLOCK_INPUT; |
| 2321 | |
| 2322 | gtk_container_remove (GTK_CONTAINER (x->vbox_widget), x->menubar_widget); |
| 2323 | /* The menubar and its children shall be deleted when removed from |
| 2324 | the container. */ |
| 2325 | x->menubar_widget = 0; |
| 2326 | FRAME_MENUBAR_HEIGHT (f) = 0; |
| 2327 | |
| 2328 | /* The height has changed, resize outer widget and set columns |
| 2329 | rows to what we had before removing the menu bar. */ |
| 2330 | xg_resize_outer_widget (f, FRAME_WIDTH (f), FRAME_HEIGHT (f)); |
| 2331 | |
| 2332 | SET_FRAME_GARBAGED (f); |
| 2333 | UNBLOCK_INPUT; |
| 2334 | } |
| 2335 | } |
| 2336 | |
| 2337 | |
| 2338 | \f |
| 2339 | /*********************************************************************** |
| 2340 | Scroll bar functions |
| 2341 | ***********************************************************************/ |
| 2342 | |
| 2343 | |
| 2344 | /* Setting scroll bar values invokes the callback. Use this variable |
| 2345 | to indicate that callback should do nothing. */ |
| 2346 | int xg_ignore_gtk_scrollbar; |
| 2347 | |
| 2348 | /* SET_SCROLL_BAR_X_WINDOW assumes the second argument fits in |
| 2349 | 32 bits. But we want to store pointers, and they may be larger |
| 2350 | than 32 bits. Keep a mapping from integer index to widget pointers |
| 2351 | to get around the 32 bit limitation. */ |
| 2352 | static struct |
| 2353 | { |
| 2354 | GtkWidget **widgets; |
| 2355 | int max_size; |
| 2356 | int used; |
| 2357 | } id_to_widget; |
| 2358 | |
| 2359 | /* Grow this much every time we need to allocate more */ |
| 2360 | #define ID_TO_WIDGET_INCR 32 |
| 2361 | |
| 2362 | /* Store the widget pointer W in id_to_widget and return the integer index. */ |
| 2363 | static int |
| 2364 | xg_store_widget_in_map (w) |
| 2365 | GtkWidget *w; |
| 2366 | { |
| 2367 | int i; |
| 2368 | |
| 2369 | if (id_to_widget.max_size == id_to_widget.used) |
| 2370 | { |
| 2371 | int new_size = id_to_widget.max_size + ID_TO_WIDGET_INCR; |
| 2372 | |
| 2373 | id_to_widget.widgets = xrealloc (id_to_widget.widgets, |
| 2374 | sizeof (GtkWidget *)*new_size); |
| 2375 | |
| 2376 | for (i = id_to_widget.max_size; i < new_size; ++i) |
| 2377 | id_to_widget.widgets[i] = 0; |
| 2378 | id_to_widget.max_size = new_size; |
| 2379 | } |
| 2380 | |
| 2381 | /* Just loop over the array and find a free place. After all, |
| 2382 | how many scroll bars are we creating? Should be a small number. |
| 2383 | The check above guarantees we will find a free place. */ |
| 2384 | for (i = 0; i < id_to_widget.max_size; ++i) |
| 2385 | { |
| 2386 | if (! id_to_widget.widgets[i]) |
| 2387 | { |
| 2388 | id_to_widget.widgets[i] = w; |
| 2389 | ++id_to_widget.used; |
| 2390 | |
| 2391 | return i; |
| 2392 | } |
| 2393 | } |
| 2394 | |
| 2395 | /* Should never end up here */ |
| 2396 | abort (); |
| 2397 | } |
| 2398 | |
| 2399 | /* Remove pointer at IDX from id_to_widget. |
| 2400 | Called when scroll bar is destroyed. */ |
| 2401 | static void |
| 2402 | xg_remove_widget_from_map (idx) |
| 2403 | int idx; |
| 2404 | { |
| 2405 | if (idx < id_to_widget.max_size && id_to_widget.widgets[idx] != 0) |
| 2406 | { |
| 2407 | id_to_widget.widgets[idx] = 0; |
| 2408 | --id_to_widget.used; |
| 2409 | } |
| 2410 | } |
| 2411 | |
| 2412 | /* Get the widget pointer at IDX from id_to_widget. */ |
| 2413 | static GtkWidget * |
| 2414 | xg_get_widget_from_map (idx) |
| 2415 | int idx; |
| 2416 | { |
| 2417 | if (idx < id_to_widget.max_size && id_to_widget.widgets[idx] != 0) |
| 2418 | return id_to_widget.widgets[idx]; |
| 2419 | |
| 2420 | return 0; |
| 2421 | } |
| 2422 | |
| 2423 | /* Return the scrollbar id for X Window WID. |
| 2424 | Return -1 if WID not in id_to_widget. */ |
| 2425 | int |
| 2426 | xg_get_scroll_id_for_window (wid) |
| 2427 | Window wid; |
| 2428 | { |
| 2429 | int idx; |
| 2430 | GtkWidget *w; |
| 2431 | |
| 2432 | w = xg_win_to_widget (wid); |
| 2433 | |
| 2434 | if (w) |
| 2435 | { |
| 2436 | for (idx = 0; idx < id_to_widget.max_size; ++idx) |
| 2437 | if (id_to_widget.widgets[idx] == w) |
| 2438 | return idx; |
| 2439 | } |
| 2440 | |
| 2441 | return -1; |
| 2442 | } |
| 2443 | |
| 2444 | /* Callback invoked when scroll bar WIDGET is destroyed. |
| 2445 | DATA is the index into id_to_widget for WIDGET. |
| 2446 | We free pointer to last scroll bar values here and remove the index. */ |
| 2447 | static void |
| 2448 | xg_gtk_scroll_destroy (widget, data) |
| 2449 | GtkWidget *widget; |
| 2450 | gpointer data; |
| 2451 | { |
| 2452 | gpointer p; |
| 2453 | int id = (int)data; |
| 2454 | |
| 2455 | p = g_object_get_data (G_OBJECT (widget), XG_LAST_SB_DATA); |
| 2456 | if (p) xfree (p); |
| 2457 | xg_remove_widget_from_map (id); |
| 2458 | } |
| 2459 | |
| 2460 | /* Callback for button press/release events. Used to start timer so that |
| 2461 | the scroll bar repetition timer in GTK gets handeled. |
| 2462 | Also, sets bar->dragging to Qnil when dragging (button release) is done. |
| 2463 | WIDGET is the scroll bar widget the event is for (not used). |
| 2464 | EVENT contains the event. |
| 2465 | USER_DATA points to the struct scrollbar structure. |
| 2466 | |
| 2467 | Returns FALSE to tell GTK that it shall continue propagate the event |
| 2468 | to widgets. */ |
| 2469 | static gboolean |
| 2470 | scroll_bar_button_cb (widget, event, user_data) |
| 2471 | GtkWidget *widget; |
| 2472 | GdkEventButton *event; |
| 2473 | gpointer user_data; |
| 2474 | { |
| 2475 | if (event->type == GDK_BUTTON_PRESS && ! xg_timer) |
| 2476 | xg_start_timer (); |
| 2477 | else if (event->type == GDK_BUTTON_RELEASE) |
| 2478 | { |
| 2479 | struct scroll_bar *bar = (struct scroll_bar *) user_data; |
| 2480 | if (xg_timer) xg_stop_timer (); |
| 2481 | bar->dragging = Qnil; |
| 2482 | } |
| 2483 | |
| 2484 | return FALSE; |
| 2485 | } |
| 2486 | |
| 2487 | /* Create a scroll bar widget for frame F. Store the scroll bar |
| 2488 | in BAR. |
| 2489 | SCROLL_CALLBACK is the callback to invoke when the value of the |
| 2490 | bar changes. |
| 2491 | SCROLL_BAR_NAME is the name we use for the scroll bar. Can be used |
| 2492 | to set resources for the widget. */ |
| 2493 | void |
| 2494 | xg_create_scroll_bar (f, bar, scroll_callback, scroll_bar_name) |
| 2495 | FRAME_PTR f; |
| 2496 | struct scroll_bar *bar; |
| 2497 | GCallback scroll_callback; |
| 2498 | char *scroll_bar_name; |
| 2499 | { |
| 2500 | GtkWidget *wscroll; |
| 2501 | GtkObject *vadj; |
| 2502 | int scroll_id; |
| 2503 | |
| 2504 | /* Page, step increment values are not so important here, they |
| 2505 | will be corrected in x_set_toolkit_scroll_bar_thumb. */ |
| 2506 | vadj = gtk_adjustment_new (XG_SB_MIN, XG_SB_MIN, XG_SB_MAX, |
| 2507 | 0.1, 0.1, 0.1); |
| 2508 | |
| 2509 | wscroll = gtk_vscrollbar_new (GTK_ADJUSTMENT (vadj)); |
| 2510 | gtk_widget_set_name (wscroll, scroll_bar_name); |
| 2511 | gtk_range_set_update_policy (GTK_RANGE (wscroll), GTK_UPDATE_CONTINUOUS); |
| 2512 | |
| 2513 | scroll_id = xg_store_widget_in_map (wscroll); |
| 2514 | |
| 2515 | g_signal_connect (G_OBJECT (vadj), |
| 2516 | "value-changed", |
| 2517 | scroll_callback, |
| 2518 | (gpointer)bar); |
| 2519 | g_signal_connect (G_OBJECT (wscroll), |
| 2520 | "destroy", |
| 2521 | G_CALLBACK (xg_gtk_scroll_destroy), |
| 2522 | (gpointer)scroll_id); |
| 2523 | |
| 2524 | /* Connect to button press and button release to detect if any scroll bar |
| 2525 | has the pointer. */ |
| 2526 | g_signal_connect (G_OBJECT (wscroll), |
| 2527 | "button-press-event", |
| 2528 | G_CALLBACK (scroll_bar_button_cb), |
| 2529 | (gpointer)bar); |
| 2530 | g_signal_connect (G_OBJECT (wscroll), |
| 2531 | "button-release-event", |
| 2532 | G_CALLBACK (scroll_bar_button_cb), |
| 2533 | (gpointer)bar); |
| 2534 | |
| 2535 | gtk_fixed_put (GTK_FIXED (f->output_data.x->edit_widget), |
| 2536 | wscroll, -1, -1); |
| 2537 | |
| 2538 | /* Set the cursor to an arrow. */ |
| 2539 | xg_set_cursor (wscroll, &xg_left_ptr_cursor); |
| 2540 | |
| 2541 | SET_SCROLL_BAR_X_WINDOW (bar, scroll_id); |
| 2542 | } |
| 2543 | |
| 2544 | /* Make the scroll bar represented by SCROLLBAR_ID visible. */ |
| 2545 | void |
| 2546 | xg_show_scroll_bar (scrollbar_id) |
| 2547 | int scrollbar_id; |
| 2548 | { |
| 2549 | GtkWidget *w = xg_get_widget_from_map (scrollbar_id); |
| 2550 | if (w) |
| 2551 | gtk_widget_show (w); |
| 2552 | } |
| 2553 | |
| 2554 | /* Remove the scroll bar represented by SCROLLBAR_ID from the frame F. */ |
| 2555 | void |
| 2556 | xg_remove_scroll_bar (f, scrollbar_id) |
| 2557 | FRAME_PTR f; |
| 2558 | int scrollbar_id; |
| 2559 | { |
| 2560 | GtkWidget *w = xg_get_widget_from_map (scrollbar_id); |
| 2561 | if (w) |
| 2562 | { |
| 2563 | gtk_widget_destroy (w); |
| 2564 | SET_FRAME_GARBAGED (f); |
| 2565 | } |
| 2566 | } |
| 2567 | |
| 2568 | /* Find left/top for widget W in GtkFixed widget WFIXED. */ |
| 2569 | static void |
| 2570 | xg_find_top_left_in_fixed (w, wfixed, left, top) |
| 2571 | GtkWidget *w, *wfixed; |
| 2572 | int *left, *top; |
| 2573 | { |
| 2574 | GList *iter; |
| 2575 | |
| 2576 | for (iter = GTK_FIXED (wfixed)->children; iter; iter = g_list_next (iter)) |
| 2577 | { |
| 2578 | GtkFixedChild *child = (GtkFixedChild *) iter->data; |
| 2579 | |
| 2580 | if (child->widget == w) |
| 2581 | { |
| 2582 | *left = child->x; |
| 2583 | *top = child->y; |
| 2584 | return; |
| 2585 | } |
| 2586 | } |
| 2587 | |
| 2588 | /* Shall never end up here. */ |
| 2589 | abort (); |
| 2590 | } |
| 2591 | |
| 2592 | /* Update the position of the vertical scroll bar represented by SCROLLBAR_ID |
| 2593 | in frame F. |
| 2594 | TOP/LEFT are the new pixel positions where the bar shall appear. |
| 2595 | WIDTH, HEIGHT is the size in pixels the bar shall have. */ |
| 2596 | void |
| 2597 | xg_update_scrollbar_pos (f, scrollbar_id, top, left, width, height, |
| 2598 | real_left, canon_width) |
| 2599 | FRAME_PTR f; |
| 2600 | int scrollbar_id; |
| 2601 | int top; |
| 2602 | int left; |
| 2603 | int width; |
| 2604 | int height; |
| 2605 | { |
| 2606 | |
| 2607 | GtkWidget *wscroll = xg_get_widget_from_map (scrollbar_id); |
| 2608 | |
| 2609 | if (wscroll) |
| 2610 | { |
| 2611 | GtkWidget *wfixed = f->output_data.x->edit_widget; |
| 2612 | int winextra = canon_width > width ? (canon_width - width) / 2 : 0; |
| 2613 | int bottom = top + height; |
| 2614 | |
| 2615 | gint slider_width; |
| 2616 | int oldtop, oldleft, oldbottom; |
| 2617 | GtkRequisition req; |
| 2618 | |
| 2619 | /* Get old values. */ |
| 2620 | xg_find_top_left_in_fixed (wscroll, wfixed, &oldleft, &oldtop); |
| 2621 | gtk_widget_size_request (wscroll, &req); |
| 2622 | oldbottom = oldtop + req.height; |
| 2623 | |
| 2624 | /* Scroll bars in GTK has a fixed width, so if we say width 16, it |
| 2625 | will only be its fixed width (14 is default) anyway, the rest is |
| 2626 | blank. We are drawing the mode line across scroll bars when |
| 2627 | the frame is split: |
| 2628 | |bar| |fringe| |
| 2629 | ---------------- |
| 2630 | mode line |
| 2631 | ---------------- |
| 2632 | |bar| |fringe| |
| 2633 | |
| 2634 | When we "unsplit" the frame: |
| 2635 | |
| 2636 | |bar| |fringe| |
| 2637 | -| |-| | |
| 2638 |