| 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 "keyboard.h" |
| 35 | #include "charset.h" |
| 36 | #include "coding.h" |
| 37 | #include <gdk/gdkkeysyms.h> |
| 38 | |
| 39 | |
| 40 | #define FRAME_TOTAL_PIXEL_HEIGHT(f) \ |
| 41 | (FRAME_PIXEL_HEIGHT (f) + FRAME_MENUBAR_HEIGHT (f) + FRAME_TOOLBAR_HEIGHT (f)) |
| 42 | |
| 43 | \f |
| 44 | /*********************************************************************** |
| 45 | Display handling functions |
| 46 | ***********************************************************************/ |
| 47 | |
| 48 | #ifdef HAVE_GTK_MULTIDISPLAY |
| 49 | |
| 50 | /* Return the GdkDisplay that corresponds to the X display DPY. */ |
| 51 | static GdkDisplay * |
| 52 | xg_get_gdk_display (dpy) |
| 53 | Display *dpy; |
| 54 | { |
| 55 | return gdk_x11_lookup_xdisplay (dpy); |
| 56 | } |
| 57 | |
| 58 | /* When the GTK widget W is to be created on a display for F that |
| 59 | is not the default display, set the display for W. |
| 60 | W can be a GtkMenu or a GtkWindow widget. */ |
| 61 | static void |
| 62 | xg_set_screen (w, f) |
| 63 | GtkWidget *w; |
| 64 | FRAME_PTR f; |
| 65 | { |
| 66 | if (FRAME_X_DISPLAY (f) != GDK_DISPLAY ()) |
| 67 | { |
| 68 | GdkDisplay *gdpy = gdk_x11_lookup_xdisplay (FRAME_X_DISPLAY (f)); |
| 69 | GdkScreen *gscreen = gdk_display_get_default_screen (gdpy); |
| 70 | |
| 71 | if (GTK_IS_MENU (w)) |
| 72 | gtk_menu_set_screen (GTK_MENU (w), gscreen); |
| 73 | else |
| 74 | gtk_window_set_screen (GTK_WINDOW (w), gscreen); |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | |
| 79 | #else /* not HAVE_GTK_MULTIDISPLAY */ |
| 80 | |
| 81 | /* Make some defines so we can use the GTK 2.2 functions when |
| 82 | compiling with GTK 2.0. */ |
| 83 | #define xg_set_screen(w, f) |
| 84 | #define gdk_xid_table_lookup_for_display(dpy, w) gdk_xid_table_lookup (w) |
| 85 | #define gdk_pixmap_foreign_new_for_display(dpy, p) gdk_pixmap_foreign_new (p) |
| 86 | #define gdk_cursor_new_for_display(dpy, c) gdk_cursor_new (c) |
| 87 | #define gdk_x11_lookup_xdisplay(dpy) 0 |
| 88 | #define GdkDisplay void |
| 89 | |
| 90 | #endif /* not HAVE_GTK_MULTIDISPLAY */ |
| 91 | |
| 92 | /* Open a display named by DISPLAY_NAME. The display is returned in *DPY. |
| 93 | *DPY is set to NULL if the display can't be opened. |
| 94 | |
| 95 | Returns non-zero if display could be opened, zero if display could not |
| 96 | be opened, and less than zero if the GTK version doesn't support |
| 97 | multipe displays. */ |
| 98 | int |
| 99 | xg_display_open (display_name, dpy) |
| 100 | char *display_name; |
| 101 | Display **dpy; |
| 102 | { |
| 103 | #ifdef HAVE_GTK_MULTIDISPLAY |
| 104 | GdkDisplay *gdpy; |
| 105 | |
| 106 | gdpy = gdk_display_open (display_name); |
| 107 | *dpy = gdpy ? GDK_DISPLAY_XDISPLAY (gdpy) : NULL; |
| 108 | |
| 109 | return gdpy != NULL; |
| 110 | |
| 111 | #else /* not HAVE_GTK_MULTIDISPLAY */ |
| 112 | |
| 113 | return -1; |
| 114 | #endif /* not HAVE_GTK_MULTIDISPLAY */ |
| 115 | } |
| 116 | |
| 117 | |
| 118 | void |
| 119 | xg_display_close (Display *dpy) |
| 120 | { |
| 121 | #ifdef HAVE_GTK_MULTIDISPLAY |
| 122 | GdkDisplay *gdpy = gdk_x11_lookup_xdisplay (dpy); |
| 123 | |
| 124 | /* GTK 2.2 has a bug that makes gdk_display_close crash (bug |
| 125 | http://bugzilla.gnome.org/show_bug.cgi?id=85715). This way |
| 126 | we can continue running, but there will be memory leaks. */ |
| 127 | |
| 128 | #if GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION < 4 |
| 129 | |
| 130 | /* If this is the default display, we must change it before calling |
| 131 | dispose, otherwise it will crash. */ |
| 132 | if (gdk_display_get_default () == gdpy) |
| 133 | { |
| 134 | struct x_display_info *dpyinfo; |
| 135 | Display *new_dpy = 0; |
| 136 | GdkDisplay *gdpy_new; |
| 137 | |
| 138 | /* Find another display. */ |
| 139 | for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next) |
| 140 | if (dpyinfo->display != dpy) |
| 141 | { |
| 142 | new_dpy = dpyinfo->display; |
| 143 | break; |
| 144 | } |
| 145 | |
| 146 | if (! new_dpy) return; /* Emacs will exit anyway. */ |
| 147 | |
| 148 | gdpy_new = gdk_x11_lookup_xdisplay (new_dpy); |
| 149 | gdk_display_manager_set_default_display (gdk_display_manager_get (), |
| 150 | gdpy_new); |
| 151 | } |
| 152 | |
| 153 | g_object_run_dispose (G_OBJECT (gdpy)); |
| 154 | |
| 155 | #else |
| 156 | /* I hope this will be fixed in GTK 2.4. It is what bug 85715 says. */ |
| 157 | gdk_display_close (gdpy); |
| 158 | #endif |
| 159 | #endif /* HAVE_GTK_MULTIDISPLAY */ |
| 160 | } |
| 161 | |
| 162 | \f |
| 163 | /*********************************************************************** |
| 164 | Utility functions |
| 165 | ***********************************************************************/ |
| 166 | /* The timer for scroll bar repetition and menu bar timeouts. |
| 167 | NULL if no timer is started. */ |
| 168 | static struct atimer *xg_timer; |
| 169 | |
| 170 | |
| 171 | /* The next two variables and functions are taken from lwlib. */ |
| 172 | static widget_value *widget_value_free_list; |
| 173 | static int malloc_cpt; |
| 174 | |
| 175 | /* Allocate a widget_value structure, either by taking one from the |
| 176 | widget_value_free_list or by malloc:ing a new one. |
| 177 | |
| 178 | Return a pointer to the allocated structure. */ |
| 179 | widget_value * |
| 180 | malloc_widget_value () |
| 181 | { |
| 182 | widget_value *wv; |
| 183 | if (widget_value_free_list) |
| 184 | { |
| 185 | wv = widget_value_free_list; |
| 186 | widget_value_free_list = wv->free_list; |
| 187 | wv->free_list = 0; |
| 188 | } |
| 189 | else |
| 190 | { |
| 191 | wv = (widget_value *) malloc (sizeof (widget_value)); |
| 192 | malloc_cpt++; |
| 193 | } |
| 194 | memset (wv, 0, sizeof (widget_value)); |
| 195 | return wv; |
| 196 | } |
| 197 | |
| 198 | /* This is analogous to free. It frees only what was allocated |
| 199 | by malloc_widget_value, and no substructures. */ |
| 200 | void |
| 201 | free_widget_value (wv) |
| 202 | widget_value *wv; |
| 203 | { |
| 204 | if (wv->free_list) |
| 205 | abort (); |
| 206 | |
| 207 | if (malloc_cpt > 25) |
| 208 | { |
| 209 | /* When the number of already allocated cells is too big, |
| 210 | We free it. */ |
| 211 | free (wv); |
| 212 | malloc_cpt--; |
| 213 | } |
| 214 | else |
| 215 | { |
| 216 | wv->free_list = widget_value_free_list; |
| 217 | widget_value_free_list = wv; |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | |
| 222 | /* Create and return the cursor to be used for popup menus and |
| 223 | scroll bars on display DPY. */ |
| 224 | GdkCursor * |
| 225 | xg_create_default_cursor (dpy) |
| 226 | Display *dpy; |
| 227 | { |
| 228 | GdkDisplay *gdpy = gdk_x11_lookup_xdisplay (dpy); |
| 229 | return gdk_cursor_new_for_display (gdpy, GDK_LEFT_PTR); |
| 230 | } |
| 231 | |
| 232 | /* For the image defined in IMG, make and return a GtkImage. For displays with |
| 233 | 8 planes or less we must make a GdkPixbuf and apply the mask manually. |
| 234 | Otherwise the highlightning and dimming the tool bar code in GTK does |
| 235 | will look bad. For display with more than 8 planes we just use the |
| 236 | pixmap and mask directly. For monochrome displays, GTK doesn't seem |
| 237 | able to use external pixmaps, it looks bad whatever we do. |
| 238 | The image is defined on the display where frame F is. |
| 239 | WIDGET is used to find the GdkColormap to use for the GdkPixbuf. |
| 240 | If OLD_WIDGET is NULL, a new widget is constructed and returned. |
| 241 | If OLD_WIDGET is not NULL, that widget is modified. */ |
| 242 | static GtkWidget * |
| 243 | xg_get_image_for_pixmap (f, img, widget, old_widget) |
| 244 | FRAME_PTR f; |
| 245 | struct image *img; |
| 246 | GtkWidget *widget; |
| 247 | GtkImage *old_widget; |
| 248 | { |
| 249 | GdkPixmap *gpix; |
| 250 | GdkPixmap *gmask; |
| 251 | GdkDisplay *gdpy; |
| 252 | |
| 253 | /* If we are on a one bit display, let GTK do all the image handling. |
| 254 | This seems to be the only way to make insensitive and activated icons |
| 255 | look good. */ |
| 256 | if (x_screen_planes (f) == 1) |
| 257 | { |
| 258 | Lisp_Object specified_file = Qnil; |
| 259 | Lisp_Object tail; |
| 260 | extern Lisp_Object QCfile; |
| 261 | |
| 262 | for (tail = XCDR (img->spec); |
| 263 | NILP (specified_file) && CONSP (tail) && CONSP (XCDR (tail)); |
| 264 | tail = XCDR (XCDR (tail))) |
| 265 | if (EQ (XCAR (tail), QCfile)) |
| 266 | specified_file = XCAR (XCDR (tail)); |
| 267 | |
| 268 | if (STRINGP (specified_file)) |
| 269 | { |
| 270 | |
| 271 | Lisp_Object file = Qnil; |
| 272 | struct gcpro gcpro1; |
| 273 | GCPRO1 (file); |
| 274 | |
| 275 | file = x_find_image_file (specified_file); |
| 276 | /* We already loaded the image once before calling this |
| 277 | function, so this should not fail. */ |
| 278 | xassert (STRINGP (file) != 0); |
| 279 | |
| 280 | if (! old_widget) |
| 281 | old_widget = GTK_IMAGE (gtk_image_new_from_file (SDATA (file))); |
| 282 | else |
| 283 | gtk_image_set_from_file (old_widget, SDATA (file)); |
| 284 | |
| 285 | UNGCPRO; |
| 286 | return GTK_WIDGET (old_widget); |
| 287 | } |
| 288 | } |
| 289 | |
| 290 | gdpy = gdk_x11_lookup_xdisplay (FRAME_X_DISPLAY (f)); |
| 291 | gpix = gdk_pixmap_foreign_new_for_display (gdpy, img->pixmap); |
| 292 | gmask = img->mask ? gdk_pixmap_foreign_new_for_display (gdpy, img->mask) : 0; |
| 293 | |
| 294 | if (x_screen_planes (f) > 8 || x_screen_planes (f) == 1) |
| 295 | { |
| 296 | if (! old_widget) |
| 297 | old_widget = GTK_IMAGE (gtk_image_new_from_pixmap (gpix, gmask)); |
| 298 | else |
| 299 | gtk_image_set_from_pixmap (old_widget, gpix, gmask); |
| 300 | } |
| 301 | else |
| 302 | { |
| 303 | /* This is a workaround to make icons look good on pseudo color |
| 304 | displays. Apparently GTK expects the images to have an alpha |
| 305 | channel. If they don't, insensitive and activated icons will |
| 306 | look bad. This workaround does not work on monochrome displays, |
| 307 | and is not needed on true color/static color displays (i.e. |
| 308 | 16 bits and higher). */ |
| 309 | int x, y, width, height, rowstride, mask_rowstride; |
| 310 | GdkPixbuf *icon_buf, *tmp_buf; |
| 311 | guchar *pixels; |
| 312 | guchar *mask_pixels; |
| 313 | |
| 314 | gdk_drawable_get_size (gpix, &width, &height); |
| 315 | tmp_buf = gdk_pixbuf_get_from_drawable (NULL, |
| 316 | gpix, |
| 317 | gtk_widget_get_colormap (widget), |
| 318 | 0, 0, 0, 0, width, height); |
| 319 | icon_buf = gdk_pixbuf_add_alpha (tmp_buf, FALSE, 0, 0, 0); |
| 320 | g_object_unref (G_OBJECT (tmp_buf)); |
| 321 | |
| 322 | if (gmask) |
| 323 | { |
| 324 | GdkPixbuf *mask_buf = gdk_pixbuf_get_from_drawable (NULL, |
| 325 | gmask, |
| 326 | NULL, |
| 327 | 0, 0, 0, 0, |
| 328 | width, height); |
| 329 | guchar *pixels = gdk_pixbuf_get_pixels (icon_buf); |
| 330 | guchar *mask_pixels = gdk_pixbuf_get_pixels (mask_buf); |
| 331 | int rowstride = gdk_pixbuf_get_rowstride (icon_buf); |
| 332 | int mask_rowstride = gdk_pixbuf_get_rowstride (mask_buf); |
| 333 | int y; |
| 334 | |
| 335 | for (y = 0; y < height; ++y) |
| 336 | { |
| 337 | guchar *iconptr, *maskptr; |
| 338 | int x; |
| 339 | |
| 340 | iconptr = pixels + y * rowstride; |
| 341 | maskptr = mask_pixels + y * mask_rowstride; |
| 342 | |
| 343 | for (x = 0; x < width; ++x) |
| 344 | { |
| 345 | /* In a bitmap, RGB is either 255/255/255 or 0/0/0. Checking |
| 346 | just R is sufficient. */ |
| 347 | if (maskptr[0] == 0) |
| 348 | iconptr[3] = 0; /* 0, 1, 2 is R, G, B. 3 is alpha. */ |
| 349 | |
| 350 | iconptr += rowstride/width; |
| 351 | maskptr += mask_rowstride/width; |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | g_object_unref (G_OBJECT (mask_buf)); |
| 356 | } |
| 357 | |
| 358 | if (! old_widget) |
| 359 | old_widget = GTK_IMAGE (gtk_image_new_from_pixbuf (icon_buf)); |
| 360 | else |
| 361 | gtk_image_set_from_pixbuf (old_widget, icon_buf); |
| 362 | |
| 363 | g_object_unref (G_OBJECT (icon_buf)); |
| 364 | } |
| 365 | |
| 366 | g_object_unref (G_OBJECT (gpix)); |
| 367 | if (gmask) g_object_unref (G_OBJECT (gmask)); |
| 368 | |
| 369 | return GTK_WIDGET (old_widget); |
| 370 | } |
| 371 | |
| 372 | |
| 373 | /* Set CURSOR on W and all widgets W contain. We must do like this |
| 374 | for scroll bars and menu because they create widgets internally, |
| 375 | and it is those widgets that are visible. */ |
| 376 | static void |
| 377 | xg_set_cursor (w, cursor) |
| 378 | GtkWidget *w; |
| 379 | GdkCursor *cursor; |
| 380 | { |
| 381 | GList *children = gdk_window_peek_children (w->window); |
| 382 | |
| 383 | gdk_window_set_cursor (w->window, cursor); |
| 384 | |
| 385 | /* The scroll bar widget has more than one GDK window (had to look at |
| 386 | the source to figure this out), and there is no way to set cursor |
| 387 | on widgets in GTK. So we must set the cursor for all GDK windows. |
| 388 | Ditto for menus. */ |
| 389 | |
| 390 | for ( ; children; children = g_list_next (children)) |
| 391 | gdk_window_set_cursor (GDK_WINDOW (children->data), cursor); |
| 392 | } |
| 393 | |
| 394 | /* Timer function called when a timeout occurs for xg_timer. |
| 395 | This function processes all GTK events in a recursive event loop. |
| 396 | This is done because GTK timer events are not seen by Emacs event |
| 397 | detection, Emacs only looks for X events. When a scroll bar has the |
| 398 | pointer (detected by button press/release events below) an Emacs |
| 399 | timer is started, and this function can then check if the GTK timer |
| 400 | has expired by calling the GTK event loop. |
| 401 | Also, when a menu is active, it has a small timeout before it |
| 402 | pops down the sub menu under it. */ |
| 403 | static void |
| 404 | xg_process_timeouts (timer) |
| 405 | struct atimer *timer; |
| 406 | { |
| 407 | BLOCK_INPUT; |
| 408 | /* Ideally we would like to just handle timer events, like the Xt version |
| 409 | of this does in xterm.c, but there is no such feature in GTK. */ |
| 410 | while (gtk_events_pending ()) |
| 411 | gtk_main_iteration (); |
| 412 | UNBLOCK_INPUT; |
| 413 | } |
| 414 | |
| 415 | /* Start the xg_timer with an interval of 0.1 seconds, if not already started. |
| 416 | xg_process_timeouts is called when the timer expires. The timer |
| 417 | started is continuous, i.e. runs until xg_stop_timer is called. */ |
| 418 | static void |
| 419 | xg_start_timer () |
| 420 | { |
| 421 | if (! xg_timer) |
| 422 | { |
| 423 | EMACS_TIME interval; |
| 424 | EMACS_SET_SECS_USECS (interval, 0, 100000); |
| 425 | xg_timer = start_atimer (ATIMER_CONTINUOUS, |
| 426 | interval, |
| 427 | xg_process_timeouts, |
| 428 | 0); |
| 429 | } |
| 430 | } |
| 431 | |
| 432 | /* Stop the xg_timer if started. */ |
| 433 | static void |
| 434 | xg_stop_timer () |
| 435 | { |
| 436 | if (xg_timer) |
| 437 | { |
| 438 | cancel_atimer (xg_timer); |
| 439 | xg_timer = 0; |
| 440 | } |
| 441 | } |
| 442 | |
| 443 | /* Insert NODE into linked LIST. */ |
| 444 | static void |
| 445 | xg_list_insert (xg_list_node *list, xg_list_node *node) |
| 446 | { |
| 447 | xg_list_node *list_start = list->next; |
| 448 | |
| 449 | if (list_start) list_start->prev = node; |
| 450 | node->next = list_start; |
| 451 | node->prev = 0; |
| 452 | list->next = node; |
| 453 | } |
| 454 | |
| 455 | /* Remove NODE from linked LIST. */ |
| 456 | static void |
| 457 | xg_list_remove (xg_list_node *list, xg_list_node *node) |
| 458 | { |
| 459 | xg_list_node *list_start = list->next; |
| 460 | if (node == list_start) |
| 461 | { |
| 462 | list->next = node->next; |
| 463 | if (list->next) list->next->prev = 0; |
| 464 | } |
| 465 | else |
| 466 | { |
| 467 | node->prev->next = node->next; |
| 468 | if (node->next) node->next->prev = node->prev; |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | /* Allocate and return a utf8 version of STR. If STR is already |
| 473 | utf8 or NULL, just return STR. |
| 474 | If not, a new string is allocated and the caller must free the result |
| 475 | with g_free. */ |
| 476 | static char * |
| 477 | get_utf8_string (str) |
| 478 | char *str; |
| 479 | { |
| 480 | char *utf8_str = str; |
| 481 | |
| 482 | /* If not UTF-8, try current locale. */ |
| 483 | if (str && !g_utf8_validate (str, -1, NULL)) |
| 484 | utf8_str = g_locale_to_utf8 (str, -1, 0, 0, 0); |
| 485 | |
| 486 | return utf8_str; |
| 487 | } |
| 488 | |
| 489 | |
| 490 | \f |
| 491 | /*********************************************************************** |
| 492 | General functions for creating widgets, resizing, events, e.t.c. |
| 493 | ***********************************************************************/ |
| 494 | |
| 495 | /* Make a geometry string and pass that to GTK. It seems this is the |
| 496 | only way to get geometry position right if the user explicitly |
| 497 | asked for a position when starting Emacs. |
| 498 | F is the frame we shall set geometry for. */ |
| 499 | static void |
| 500 | xg_set_geometry (f) |
| 501 | FRAME_PTR f; |
| 502 | { |
| 503 | if (f->size_hint_flags & USPosition) |
| 504 | { |
| 505 | int left = f->left_pos; |
| 506 | int xneg = f->size_hint_flags & XNegative; |
| 507 | int top = f->top_pos; |
| 508 | int yneg = f->size_hint_flags & YNegative; |
| 509 | char geom_str[32]; |
| 510 | |
| 511 | if (xneg) |
| 512 | left = -left; |
| 513 | if (yneg) |
| 514 | top = -top; |
| 515 | |
| 516 | sprintf (geom_str, "=%dx%d%c%d%c%d", |
| 517 | FRAME_PIXEL_WIDTH (f), |
| 518 | FRAME_TOTAL_PIXEL_HEIGHT (f), |
| 519 | (xneg ? '-' : '+'), left, |
| 520 | (yneg ? '-' : '+'), top); |
| 521 | |
| 522 | if (!gtk_window_parse_geometry (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)), |
| 523 | geom_str)) |
| 524 | fprintf (stderr, "Failed to parse: '%s'\n", geom_str); |
| 525 | } |
| 526 | } |
| 527 | |
| 528 | |
| 529 | /* Resize the outer window of frame F after chainging the height. |
| 530 | This happend when the menu bar or the tool bar is added or removed. |
| 531 | COLUMNS/ROWS is the size the edit area shall have after the resize. */ |
| 532 | static void |
| 533 | xg_resize_outer_widget (f, columns, rows) |
| 534 | FRAME_PTR f; |
| 535 | int columns; |
| 536 | int rows; |
| 537 | { |
| 538 | gtk_window_resize (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)), |
| 539 | FRAME_PIXEL_WIDTH (f), FRAME_TOTAL_PIXEL_HEIGHT (f)); |
| 540 | |
| 541 | /* base_height is now changed. */ |
| 542 | x_wm_set_size_hint (f, 0, 0); |
| 543 | |
| 544 | /* If we are not mapped yet, set geometry once again, as window |
| 545 | height now have changed. */ |
| 546 | if (! GTK_WIDGET_MAPPED (FRAME_GTK_OUTER_WIDGET (f))) |
| 547 | xg_set_geometry (f); |
| 548 | |
| 549 | xg_frame_set_char_size (f, columns, rows); |
| 550 | gdk_window_process_all_updates (); |
| 551 | } |
| 552 | |
| 553 | /* Function to handle resize of our widgets. Since Emacs has some layouts |
| 554 | that does not fit well with GTK standard containers, we do most layout |
| 555 | manually. |
| 556 | F is the frame to resize. |
| 557 | PIXELWIDTH, PIXELHEIGHT is the new size in pixels. */ |
| 558 | void |
| 559 | xg_resize_widgets (f, pixelwidth, pixelheight) |
| 560 | FRAME_PTR f; |
| 561 | int pixelwidth, pixelheight; |
| 562 | { |
| 563 | int mbheight = FRAME_MENUBAR_HEIGHT (f); |
| 564 | int tbheight = FRAME_TOOLBAR_HEIGHT (f); |
| 565 | int rows = FRAME_PIXEL_HEIGHT_TO_TEXT_LINES (f, (pixelheight |
| 566 | - mbheight - tbheight)); |
| 567 | int columns = FRAME_PIXEL_WIDTH_TO_TEXT_COLS (f, pixelwidth); |
| 568 | |
| 569 | if (FRAME_GTK_WIDGET (f) |
| 570 | && (columns != FRAME_COLS (f) |
| 571 | || rows != FRAME_LINES (f) |
| 572 | || pixelwidth != FRAME_PIXEL_WIDTH (f) |
| 573 | || pixelheight != FRAME_PIXEL_HEIGHT (f))) |
| 574 | { |
| 575 | struct x_output *x = f->output_data.x; |
| 576 | GtkAllocation all; |
| 577 | |
| 578 | all.y = mbheight + tbheight; |
| 579 | all.x = 0; |
| 580 | |
| 581 | all.width = pixelwidth; |
| 582 | all.height = pixelheight - mbheight - tbheight; |
| 583 | |
| 584 | gtk_widget_size_allocate (x->edit_widget, &all); |
| 585 | |
| 586 | change_frame_size (f, rows, columns, 0, 1, 0); |
| 587 | SET_FRAME_GARBAGED (f); |
| 588 | cancel_mouse_face (f); |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | |
| 593 | /* Update our widget size to be COLS/ROWS characters for frame F. */ |
| 594 | void |
| 595 | xg_frame_set_char_size (f, cols, rows) |
| 596 | FRAME_PTR f; |
| 597 | int cols; |
| 598 | int rows; |
| 599 | { |
| 600 | int pixelheight = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, rows) |
| 601 | + FRAME_MENUBAR_HEIGHT (f) + FRAME_TOOLBAR_HEIGHT (f); |
| 602 | int pixelwidth; |
| 603 | |
| 604 | /* Take into account the size of the scroll bar. Always use the |
| 605 | number of columns occupied by the scroll bar here otherwise we |
| 606 | might end up with a frame width that is not a multiple of the |
| 607 | frame's character width which is bad for vertically split |
| 608 | windows. */ |
| 609 | f->scroll_bar_actual_width |
| 610 | = FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f); |
| 611 | |
| 612 | compute_fringe_widths (f, 0); |
| 613 | |
| 614 | /* FRAME_TEXT_COLS_TO_PIXEL_WIDTH uses scroll_bar_actual_width, so call it |
| 615 | after calculating that value. */ |
| 616 | pixelwidth = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, cols); |
| 617 | |
| 618 | /* Must resize our top level widget. Font size may have changed, |
| 619 | but not rows/cols. */ |
| 620 | gtk_window_resize (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)), |
| 621 | pixelwidth, pixelheight); |
| 622 | xg_resize_widgets (f, pixelwidth, pixelheight); |
| 623 | x_wm_set_size_hint (f, 0, 0); |
| 624 | SET_FRAME_GARBAGED (f); |
| 625 | cancel_mouse_face (f); |
| 626 | } |
| 627 | |
| 628 | /* Convert an X Window WSESC on display DPY to its corresponding GtkWidget. |
| 629 | Must be done like this, because GtkWidget:s can have "hidden" |
| 630 | X Window that aren't accessible. |
| 631 | |
| 632 | Return 0 if no widget match WDESC. */ |
| 633 | GtkWidget * |
| 634 | xg_win_to_widget (dpy, wdesc) |
| 635 | Display *dpy; |
| 636 | Window wdesc; |
| 637 | { |
| 638 | gpointer gdkwin; |
| 639 | GtkWidget *gwdesc = 0; |
| 640 | |
| 641 | BLOCK_INPUT; |
| 642 | |
| 643 | gdkwin = gdk_xid_table_lookup_for_display (gdk_x11_lookup_xdisplay (dpy), |
| 644 | wdesc); |
| 645 | if (gdkwin) |
| 646 | { |
| 647 | GdkEvent event; |
| 648 | event.any.window = gdkwin; |
| 649 | gwdesc = gtk_get_event_widget (&event); |
| 650 | } |
| 651 | |
| 652 | UNBLOCK_INPUT; |
| 653 | return gwdesc; |
| 654 | } |
| 655 | |
| 656 | /* Fill in the GdkColor C so that it represents PIXEL. |
| 657 | W is the widget that color will be used for. Used to find colormap. */ |
| 658 | static void |
| 659 | xg_pix_to_gcolor (w, pixel, c) |
| 660 | GtkWidget *w; |
| 661 | unsigned long pixel; |
| 662 | GdkColor *c; |
| 663 | { |
| 664 | GdkColormap *map = gtk_widget_get_colormap (w); |
| 665 | gdk_colormap_query_color (map, pixel, c); |
| 666 | } |
| 667 | |
| 668 | /* Create and set up the GTK widgets for frame F. |
| 669 | Return 0 if creation failed, non-zero otherwise. */ |
| 670 | int |
| 671 | xg_create_frame_widgets (f) |
| 672 | FRAME_PTR f; |
| 673 | { |
| 674 | GtkWidget *wtop; |
| 675 | GtkWidget *wvbox; |
| 676 | GtkWidget *wfixed; |
| 677 | GdkColor bg; |
| 678 | GtkRcStyle *style; |
| 679 | int i; |
| 680 | char *title = 0; |
| 681 | |
| 682 | BLOCK_INPUT; |
| 683 | |
| 684 | wtop = gtk_window_new (GTK_WINDOW_TOPLEVEL); |
| 685 | xg_set_screen (wtop, f); |
| 686 | |
| 687 | wvbox = gtk_vbox_new (FALSE, 0); |
| 688 | wfixed = gtk_fixed_new (); /* Must have this to place scroll bars */ |
| 689 | |
| 690 | if (! wtop || ! wvbox || ! wfixed) |
| 691 | { |
| 692 | if (wtop) gtk_widget_destroy (wtop); |
| 693 | if (wvbox) gtk_widget_destroy (wvbox); |
| 694 | if (wfixed) gtk_widget_destroy (wfixed); |
| 695 | |
| 696 | return 0; |
| 697 | } |
| 698 | |
| 699 | /* Use same names as the Xt port does. I.e. Emacs.pane.emacs by default */ |
| 700 | gtk_widget_set_name (wtop, EMACS_CLASS); |
| 701 | gtk_widget_set_name (wvbox, "pane"); |
| 702 | gtk_widget_set_name (wfixed, SDATA (Vx_resource_name)); |
| 703 | |
| 704 | /* If this frame has a title or name, set it in the title bar. */ |
| 705 | if (! NILP (f->title)) title = SDATA (ENCODE_UTF_8 (f->title)); |
| 706 | else if (! NILP (f->name)) title = SDATA (ENCODE_UTF_8 (f->name)); |
| 707 | |
| 708 | if (title) gtk_window_set_title (GTK_WINDOW (wtop), title); |
| 709 | |
| 710 | FRAME_GTK_OUTER_WIDGET (f) = wtop; |
| 711 | FRAME_GTK_WIDGET (f) = wfixed; |
| 712 | f->output_data.x->vbox_widget = wvbox; |
| 713 | |
| 714 | gtk_fixed_set_has_window (GTK_FIXED (wfixed), TRUE); |
| 715 | |
| 716 | gtk_widget_set_size_request (wfixed, FRAME_PIXEL_WIDTH (f), |
| 717 | FRAME_PIXEL_HEIGHT (f)); |
| 718 | |
| 719 | gtk_container_add (GTK_CONTAINER (wtop), wvbox); |
| 720 | gtk_box_pack_end (GTK_BOX (wvbox), wfixed, TRUE, TRUE, 0); |
| 721 | |
| 722 | if (FRAME_EXTERNAL_TOOL_BAR (f)) |
| 723 | update_frame_tool_bar (f); |
| 724 | |
| 725 | /* The tool bar is created but first there are no items in it. |
| 726 | This causes it to be zero height. Later items are added, but then |
| 727 | the frame is already mapped, so there is a "jumping" resize. |
| 728 | This makes geometry handling difficult, for example -0-0 will end |
| 729 | up in the wrong place as tool bar height has not been taken into account. |
| 730 | So we cheat a bit by setting a height that is what it will have |
| 731 | later on when tool bar items are added. */ |
| 732 | if (FRAME_EXTERNAL_TOOL_BAR (f) && f->n_tool_bar_items == 0) |
| 733 | FRAME_TOOLBAR_HEIGHT (f) = 34; |
| 734 | |
| 735 | |
| 736 | /* We don't want this widget double buffered, because we draw on it |
| 737 | with regular X drawing primitives, so from a GTK/GDK point of |
| 738 | view, the widget is totally blank. When an expose comes, this |
| 739 | will make the widget blank, and then Emacs redraws it. This flickers |
| 740 | a lot, so we turn off double buffering. */ |
| 741 | gtk_widget_set_double_buffered (wfixed, FALSE); |
| 742 | |
| 743 | /* GTK documents says use gtk_window_set_resizable. But then a user |
| 744 | can't shrink the window from its starting size. */ |
| 745 | gtk_window_set_policy (GTK_WINDOW (wtop), TRUE, TRUE, TRUE); |
| 746 | gtk_window_set_wmclass (GTK_WINDOW (wtop), |
| 747 | SDATA (Vx_resource_name), |
| 748 | SDATA (Vx_resource_class)); |
| 749 | |
| 750 | /* Add callback to do nothing on WM_DELETE_WINDOW. The default in |
| 751 | GTK is to destroy the widget. We want Emacs to do that instead. */ |
| 752 | g_signal_connect (G_OBJECT (wtop), "delete-event", |
| 753 | G_CALLBACK (gtk_true), 0); |
| 754 | |
| 755 | /* Convert our geometry parameters into a geometry string |
| 756 | and specify it. |
| 757 | GTK will itself handle calculating the real position this way. */ |
| 758 | xg_set_geometry (f); |
| 759 | |
| 760 | gtk_widget_add_events (wfixed, |
| 761 | GDK_POINTER_MOTION_MASK |
| 762 | | GDK_EXPOSURE_MASK |
| 763 | | GDK_BUTTON_PRESS_MASK |
| 764 | | GDK_BUTTON_RELEASE_MASK |
| 765 | | GDK_KEY_PRESS_MASK |
| 766 | | GDK_ENTER_NOTIFY_MASK |
| 767 | | GDK_LEAVE_NOTIFY_MASK |
| 768 | | GDK_FOCUS_CHANGE_MASK |
| 769 | | GDK_STRUCTURE_MASK |
| 770 | | GDK_VISIBILITY_NOTIFY_MASK); |
| 771 | |
| 772 | /* Must realize the windows so the X window gets created. It is used |
| 773 | by callers of this function. */ |
| 774 | gtk_widget_realize (wfixed); |
| 775 | FRAME_X_WINDOW (f) = GTK_WIDGET_TO_X_WIN (wfixed); |
| 776 | |
| 777 | /* Since GTK clears its window by filling with the background color, |
| 778 | we must keep X and GTK background in sync. */ |
| 779 | xg_pix_to_gcolor (wfixed, f->output_data.x->background_pixel, &bg); |
| 780 | gtk_widget_modify_bg (wfixed, GTK_STATE_NORMAL, &bg); |
| 781 | |
| 782 | /* Also, do not let any background pixmap to be set, this looks very |
| 783 | bad as Emacs overwrites the background pixmap with its own idea |
| 784 | of background color. */ |
| 785 | style = gtk_widget_get_modifier_style (wfixed); |
| 786 | |
| 787 | /* Must use g_strdup because gtk_widget_modify_style does g_free. */ |
| 788 | style->bg_pixmap_name[GTK_STATE_NORMAL] = g_strdup ("<none>"); |
| 789 | gtk_widget_modify_style (wfixed, style); |
| 790 | |
| 791 | /* GTK does not set any border, and they look bad with GTK. */ |
| 792 | f->border_width = 0; |
| 793 | f->internal_border_width = 0; |
| 794 | |
| 795 | UNBLOCK_INPUT; |
| 796 | |
| 797 | return 1; |
| 798 | } |
| 799 | |
| 800 | /* Set the normal size hints for the window manager, for frame F. |
| 801 | FLAGS is the flags word to use--or 0 meaning preserve the flags |
| 802 | that the window now has. |
| 803 | If USER_POSITION is nonzero, we set the User Position |
| 804 | flag (this is useful when FLAGS is 0). */ |
| 805 | void |
| 806 | x_wm_set_size_hint (f, flags, user_position) |
| 807 | FRAME_PTR f; |
| 808 | long flags; |
| 809 | int user_position; |
| 810 | { |
| 811 | if (FRAME_GTK_OUTER_WIDGET (f)) |
| 812 | { |
| 813 | /* Must use GTK routines here, otherwise GTK resets the size hints |
| 814 | to its own defaults. */ |
| 815 | GdkGeometry size_hints; |
| 816 | gint hint_flags = 0; |
| 817 | int base_width, base_height; |
| 818 | int min_rows = 0, min_cols = 0; |
| 819 | int win_gravity = f->win_gravity; |
| 820 | |
| 821 | if (flags) |
| 822 | { |
| 823 | memset (&size_hints, 0, sizeof (size_hints)); |
| 824 | f->output_data.x->size_hints = size_hints; |
| 825 | f->output_data.x->hint_flags = hint_flags; |
| 826 | } |
| 827 | else |
| 828 | flags = f->size_hint_flags; |
| 829 | |
| 830 | size_hints = f->output_data.x->size_hints; |
| 831 | hint_flags = f->output_data.x->hint_flags; |
| 832 | |
| 833 | hint_flags |= GDK_HINT_RESIZE_INC | GDK_HINT_MIN_SIZE; |
| 834 | size_hints.width_inc = FRAME_COLUMN_WIDTH (f); |
| 835 | size_hints.height_inc = FRAME_LINE_HEIGHT (f); |
| 836 | |
| 837 | hint_flags |= GDK_HINT_BASE_SIZE; |
| 838 | base_width = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, 0); |
| 839 | base_height = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, 0) |
| 840 | + FRAME_MENUBAR_HEIGHT (f) + FRAME_TOOLBAR_HEIGHT (f); |
| 841 | |
| 842 | check_frame_size (f, &min_rows, &min_cols); |
| 843 | |
| 844 | size_hints.base_width = base_width; |
| 845 | size_hints.base_height = base_height; |
| 846 | size_hints.min_width = base_width + min_cols * size_hints.width_inc; |
| 847 | size_hints.min_height = base_height + min_rows * size_hints.height_inc; |
| 848 | |
| 849 | |
| 850 | /* These currently have a one to one mapping with the X values, but I |
| 851 | don't think we should rely on that. */ |
| 852 | hint_flags |= GDK_HINT_WIN_GRAVITY; |
| 853 | size_hints.win_gravity = 0; |
| 854 | if (win_gravity == NorthWestGravity) |
| 855 | size_hints.win_gravity = GDK_GRAVITY_NORTH_WEST; |
| 856 | else if (win_gravity == NorthGravity) |
| 857 | size_hints.win_gravity = GDK_GRAVITY_NORTH; |
| 858 | else if (win_gravity == NorthEastGravity) |
| 859 | size_hints.win_gravity = GDK_GRAVITY_NORTH_EAST; |
| 860 | else if (win_gravity == WestGravity) |
| 861 | size_hints.win_gravity = GDK_GRAVITY_WEST; |
| 862 | else if (win_gravity == CenterGravity) |
| 863 | size_hints.win_gravity = GDK_GRAVITY_CENTER; |
| 864 | else if (win_gravity == EastGravity) |
| 865 | size_hints.win_gravity = GDK_GRAVITY_EAST; |
| 866 | else if (win_gravity == SouthWestGravity) |
| 867 | size_hints.win_gravity = GDK_GRAVITY_SOUTH_WEST; |
| 868 | else if (win_gravity == SouthGravity) |
| 869 | size_hints.win_gravity = GDK_GRAVITY_SOUTH; |
| 870 | else if (win_gravity == SouthEastGravity) |
| 871 | size_hints.win_gravity = GDK_GRAVITY_SOUTH_EAST; |
| 872 | else if (win_gravity == StaticGravity) |
| 873 | size_hints.win_gravity = GDK_GRAVITY_STATIC; |
| 874 | |
| 875 | if (flags & PPosition) hint_flags |= GDK_HINT_POS; |
| 876 | if (flags & USPosition) hint_flags |= GDK_HINT_USER_POS; |
| 877 | if (flags & USSize) hint_flags |= GDK_HINT_USER_SIZE; |
| 878 | |
| 879 | if (user_position) |
| 880 | { |
| 881 | hint_flags &= ~GDK_HINT_POS; |
| 882 | hint_flags |= GDK_HINT_USER_POS; |
| 883 | } |
| 884 | |
| 885 | BLOCK_INPUT; |
| 886 | |
| 887 | gtk_window_set_geometry_hints (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)), |
| 888 | FRAME_GTK_OUTER_WIDGET (f), |
| 889 | &size_hints, |
| 890 | hint_flags); |
| 891 | |
| 892 | f->output_data.x->size_hints = size_hints; |
| 893 | f->output_data.x->hint_flags = hint_flags; |
| 894 | UNBLOCK_INPUT; |
| 895 | } |
| 896 | } |
| 897 | |
| 898 | /* Change background color of a frame. |
| 899 | Since GTK uses the background colour to clear the window, we must |
| 900 | keep the GTK and X colors in sync. |
| 901 | F is the frame to change, |
| 902 | BG is the pixel value to change to. */ |
| 903 | void |
| 904 | xg_set_background_color (f, bg) |
| 905 | FRAME_PTR f; |
| 906 | unsigned long bg; |
| 907 | { |
| 908 | if (FRAME_GTK_WIDGET (f)) |
| 909 | { |
| 910 | GdkColor gdk_bg; |
| 911 | |
| 912 | BLOCK_INPUT; |
| 913 | xg_pix_to_gcolor (FRAME_GTK_WIDGET (f), bg, &gdk_bg); |
| 914 | gtk_widget_modify_bg (FRAME_GTK_WIDGET (f), GTK_STATE_NORMAL, &gdk_bg); |
| 915 | UNBLOCK_INPUT; |
| 916 | } |
| 917 | } |
| 918 | |
| 919 | |
| 920 | \f |
| 921 | /*********************************************************************** |
| 922 | Dialog functions |
| 923 | ***********************************************************************/ |
| 924 | /* Return the dialog title to use for a dialog of type KEY. |
| 925 | This is the encoding used by lwlib. We use the same for GTK. */ |
| 926 | static char * |
| 927 | get_dialog_title (char key) |
| 928 | { |
| 929 | char *title = ""; |
| 930 | |
| 931 | switch (key) { |
| 932 | case 'E': case 'e': |
| 933 | title = "Error"; |
| 934 | break; |
| 935 | |
| 936 | case 'I': case 'i': |
| 937 | title = "Information"; |
| 938 | break; |
| 939 | |
| 940 | case 'L': case 'l': |
| 941 | title = "Prompt"; |
| 942 | break; |
| 943 | |
| 944 | case 'P': case 'p': |
| 945 | title = "Prompt"; |
| 946 | break; |
| 947 | |
| 948 | case 'Q': case 'q': |
| 949 | title = "Question"; |
| 950 | break; |
| 951 | } |
| 952 | |
| 953 | return title; |
| 954 | } |
| 955 | |
| 956 | /* Callback for dialogs that get WM_DELETE_WINDOW. We pop down |
| 957 | the dialog, but return TRUE so the event does not propagate further |
| 958 | in GTK. This prevents GTK from destroying the dialog widget automatically |
| 959 | and we can always destrou the widget manually, regardles of how |
| 960 | it was popped down (button press or WM_DELETE_WINDOW). |
| 961 | W is the dialog widget. |
| 962 | EVENT is the GdkEvent that represents WM_DELETE_WINDOW (not used). |
| 963 | user_data is NULL (not used). |
| 964 | |
| 965 | Returns TRUE to end propagation of event. */ |
| 966 | static gboolean |
| 967 | dialog_delete_callback (w, event, user_data) |
| 968 | GtkWidget *w; |
| 969 | GdkEvent *event; |
| 970 | gpointer user_data; |
| 971 | { |
| 972 | gtk_widget_unmap (w); |
| 973 | return TRUE; |
| 974 | } |
| 975 | |
| 976 | /* Create a popup dialog window. See also xg_create_widget below. |
| 977 | WV is a widget_value describing the dialog. |
| 978 | SELECT_CB is the callback to use when a button has been pressed. |
| 979 | DEACTIVATE_CB is the callback to use when the dialog pops down. |
| 980 | |
| 981 | Returns the GTK dialog widget. */ |
| 982 | static GtkWidget * |
| 983 | create_dialog (wv, select_cb, deactivate_cb) |
| 984 | widget_value *wv; |
| 985 | GCallback select_cb; |
| 986 | GCallback deactivate_cb; |
| 987 | { |
| 988 | char *title = get_dialog_title (wv->name[0]); |
| 989 | int total_buttons = wv->name[1] - '0'; |
| 990 | int right_buttons = wv->name[4] - '0'; |
| 991 | int left_buttons; |
| 992 | int button_nr = 0; |
| 993 | int button_spacing = 10; |
| 994 | GtkWidget *wdialog = gtk_dialog_new (); |
| 995 | widget_value *item; |
| 996 | GtkBox *cur_box; |
| 997 | GtkWidget *wvbox; |
| 998 | GtkWidget *whbox_up; |
| 999 | GtkWidget *whbox_down; |
| 1000 | |
| 1001 | /* If the number of buttons is greater than 4, make two rows of buttons |
| 1002 | instead. This looks better. */ |
| 1003 | int make_two_rows = total_buttons > 4; |
| 1004 | |
| 1005 | if (right_buttons == 0) right_buttons = total_buttons/2; |
| 1006 | left_buttons = total_buttons - right_buttons; |
| 1007 | |
| 1008 | gtk_window_set_title (GTK_WINDOW (wdialog), title); |
| 1009 | gtk_widget_set_name (wdialog, "emacs-dialog"); |
| 1010 | |
| 1011 | cur_box = GTK_BOX (GTK_DIALOG (wdialog)->action_area); |
| 1012 | |
| 1013 | if (make_two_rows) |
| 1014 | { |
| 1015 | wvbox = gtk_vbox_new (TRUE, button_spacing); |
| 1016 | whbox_up = gtk_hbox_new (FALSE, 0); |
| 1017 | whbox_down = gtk_hbox_new (FALSE, 0); |
| 1018 | |
| 1019 | gtk_box_pack_start (cur_box, wvbox, FALSE, FALSE, 0); |
| 1020 | gtk_box_pack_start (GTK_BOX (wvbox), whbox_up, FALSE, FALSE, 0); |
| 1021 | gtk_box_pack_start (GTK_BOX (wvbox), whbox_down, FALSE, FALSE, 0); |
| 1022 | |
| 1023 | cur_box = GTK_BOX (whbox_up); |
| 1024 | } |
| 1025 | |
| 1026 | g_signal_connect (G_OBJECT (wdialog), "delete-event", |
| 1027 | G_CALLBACK (dialog_delete_callback), 0); |
| 1028 | |
| 1029 | if (deactivate_cb) |
| 1030 | { |
| 1031 | g_signal_connect (G_OBJECT (wdialog), "close", deactivate_cb, 0); |
| 1032 | g_signal_connect (G_OBJECT (wdialog), "response", deactivate_cb, 0); |
| 1033 | } |
| 1034 | |
| 1035 | for (item = wv->contents; item; item = item->next) |
| 1036 | { |
| 1037 | char *utf8_label = get_utf8_string (item->value); |
| 1038 | GtkWidget *w; |
| 1039 | GtkRequisition req; |
| 1040 | |
| 1041 | if (item->name && strcmp (item->name, "message") == 0) |
| 1042 | { |
| 1043 | /* This is the text part of the dialog. */ |
| 1044 | w = gtk_label_new (utf8_label); |
| 1045 | gtk_box_pack_start (GTK_BOX (GTK_DIALOG (wdialog)->vbox), |
| 1046 | gtk_label_new (""), |
| 1047 | FALSE, FALSE, 0); |
| 1048 | gtk_box_pack_start (GTK_BOX (GTK_DIALOG (wdialog)->vbox), w, |
| 1049 | TRUE, TRUE, 0); |
| 1050 | gtk_misc_set_alignment (GTK_MISC (w), 0.1, 0.5); |
| 1051 | |
| 1052 | /* Try to make dialog look better. Must realize first so |
| 1053 | the widget can calculate the size it needs. */ |
| 1054 | gtk_widget_realize (w); |
| 1055 | gtk_widget_size_request (w, &req); |
| 1056 | gtk_box_set_spacing (GTK_BOX (GTK_DIALOG (wdialog)->vbox), |
| 1057 | req.height); |
| 1058 | if (item->value && strlen (item->value) > 0) |
| 1059 | button_spacing = 2*req.width/strlen (item->value); |
| 1060 | } |
| 1061 | else |
| 1062 | { |
| 1063 | /* This is one button to add to the dialog. */ |
| 1064 | w = gtk_button_new_with_label (utf8_label); |
| 1065 | if (! item->enabled) |
| 1066 | gtk_widget_set_sensitive (w, FALSE); |
| 1067 | if (select_cb) |
| 1068 | g_signal_connect (G_OBJECT (w), "clicked", |
| 1069 | select_cb, item->call_data); |
| 1070 | |
| 1071 | gtk_box_pack_start (cur_box, w, TRUE, TRUE, button_spacing); |
| 1072 | if (++button_nr == left_buttons) |
| 1073 | { |
| 1074 | if (make_two_rows) |
| 1075 | cur_box = GTK_BOX (whbox_down); |
| 1076 | else |
| 1077 | gtk_box_pack_start (cur_box, |
| 1078 | gtk_label_new (""), |
| 1079 | TRUE, TRUE, |
| 1080 | button_spacing); |
| 1081 | } |
| 1082 | } |
| 1083 | |
| 1084 | if (utf8_label && utf8_label != item->value) |
| 1085 | g_free (utf8_label); |
| 1086 | } |
| 1087 | |
| 1088 | return wdialog; |
| 1089 | } |
| 1090 | |
| 1091 | |
| 1092 | enum |
| 1093 | { |
| 1094 | XG_FILE_NOT_DONE, |
| 1095 | XG_FILE_OK, |
| 1096 | XG_FILE_CANCEL, |
| 1097 | XG_FILE_DESTROYED, |
| 1098 | }; |
| 1099 | |
| 1100 | /* Callback function invoked when the Ok button is pressed in |
| 1101 | a file dialog. |
| 1102 | W is the file dialog widget, |
| 1103 | ARG points to an integer where we record what has happend. */ |
| 1104 | static void |
| 1105 | xg_file_sel_ok (w, arg) |
| 1106 | GtkWidget *w; |
| 1107 | gpointer arg; |
| 1108 | { |
| 1109 | *(int*)arg = XG_FILE_OK; |
| 1110 | } |
| 1111 | |
| 1112 | /* Callback function invoked when the Cancel button is pressed in |
| 1113 | a file dialog. |
| 1114 | W is the file dialog widget, |
| 1115 | ARG points to an integer where we record what has happend. */ |
| 1116 | static void |
| 1117 | xg_file_sel_cancel (w, arg) |
| 1118 | GtkWidget *w; |
| 1119 | gpointer arg; |
| 1120 | { |
| 1121 | *(int*)arg = XG_FILE_CANCEL; |
| 1122 | } |
| 1123 | |
| 1124 | /* Callback function invoked when the file dialog is destroyed (i.e. |
| 1125 | popped down). We must keep track of this, because if this |
| 1126 | happens, GTK destroys the widget. But if for example, Ok is pressed, |
| 1127 | the dialog is popped down, but the dialog widget is not destroyed. |
| 1128 | W is the file dialog widget, |
| 1129 | ARG points to an integer where we record what has happend. */ |
| 1130 | static void |
| 1131 | xg_file_sel_destroy (w, arg) |
| 1132 | GtkWidget *w; |
| 1133 | gpointer arg; |
| 1134 | { |
| 1135 | *(int*)arg = XG_FILE_DESTROYED; |
| 1136 | } |
| 1137 | |
| 1138 | /* Read a file name from the user using a file dialog. |
| 1139 | F is the current frame. |
| 1140 | PROMPT is a prompt to show to the user. May not be NULL. |
| 1141 | DEFAULT_FILENAME is a default selection to be displayed. May be NULL. |
| 1142 | If MUSTMATCH_P is non-zero, the returned file name must be an existing |
| 1143 | file. |
| 1144 | |
| 1145 | Returns a file name or NULL if no file was selected. |
| 1146 | The returned string must be freed by the caller. */ |
| 1147 | char * |
| 1148 | xg_get_file_name (f, prompt, default_filename, mustmatch_p) |
| 1149 | FRAME_PTR f; |
| 1150 | char *prompt; |
| 1151 | char *default_filename; |
| 1152 | int mustmatch_p; |
| 1153 | { |
| 1154 | GtkWidget *filewin; |
| 1155 | GtkFileSelection *filesel; |
| 1156 | int filesel_done = XG_FILE_NOT_DONE; |
| 1157 | char *fn = 0; |
| 1158 | |
| 1159 | filewin = gtk_file_selection_new (prompt); |
| 1160 | filesel = GTK_FILE_SELECTION (filewin); |
| 1161 | |
| 1162 | xg_set_screen (filewin, f); |
| 1163 | |
| 1164 | gtk_widget_set_name (filewin, "emacs-filedialog"); |
| 1165 | |
| 1166 | gtk_window_set_transient_for (GTK_WINDOW (filewin), |
| 1167 | GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f))); |
| 1168 | gtk_window_set_destroy_with_parent (GTK_WINDOW (filewin), TRUE); |
| 1169 | |
| 1170 | g_signal_connect (G_OBJECT (filesel->ok_button), |
| 1171 | "clicked", |
| 1172 | G_CALLBACK (xg_file_sel_ok), |
| 1173 | &filesel_done); |
| 1174 | g_signal_connect (G_OBJECT (filesel->cancel_button), |
| 1175 | "clicked", |
| 1176 | G_CALLBACK (xg_file_sel_cancel), |
| 1177 | &filesel_done); |
| 1178 | g_signal_connect (G_OBJECT (filesel), |
| 1179 | "destroy", |
| 1180 | G_CALLBACK (xg_file_sel_destroy), |
| 1181 | &filesel_done); |
| 1182 | |
| 1183 | if (default_filename) |
| 1184 | gtk_file_selection_set_filename (filesel, default_filename); |
| 1185 | |
| 1186 | if (mustmatch_p) |
| 1187 | { |
| 1188 | /* The selection_entry part of filesel is not documented. */ |
| 1189 | gtk_widget_set_sensitive (filesel->selection_entry, FALSE); |
| 1190 | gtk_file_selection_hide_fileop_buttons (filesel); |
| 1191 | } |
| 1192 | |
| 1193 | |
| 1194 | gtk_widget_show_all (filewin); |
| 1195 | |
| 1196 | while (filesel_done == XG_FILE_NOT_DONE) |
| 1197 | gtk_main_iteration (); |
| 1198 | |
| 1199 | if (filesel_done == XG_FILE_OK) |
| 1200 | fn = xstrdup ((char*) gtk_file_selection_get_filename (filesel)); |
| 1201 | |
| 1202 | if (filesel_done != XG_FILE_DESTROYED) |
| 1203 | gtk_widget_destroy (filewin); |
| 1204 | |
| 1205 | return fn; |
| 1206 | } |
| 1207 | |
| 1208 | \f |
| 1209 | /*********************************************************************** |
| 1210 | Menu functions. |
| 1211 | ***********************************************************************/ |
| 1212 | |
| 1213 | /* The name of menu items that can be used for citomization. Since GTK |
| 1214 | RC files are very crude and primitive, we have to set this on all |
| 1215 | menu item names so a user can easily cutomize menu items. */ |
| 1216 | |
| 1217 | #define MENU_ITEM_NAME "emacs-menuitem" |
| 1218 | |
| 1219 | |
| 1220 | /* Linked list of all allocated struct xg_menu_cb_data. Used for marking |
| 1221 | during GC. The next member points to the items. */ |
| 1222 | static xg_list_node xg_menu_cb_list; |
| 1223 | |
| 1224 | /* Linked list of all allocated struct xg_menu_item_cb_data. Used for marking |
| 1225 | during GC. The next member points to the items. */ |
| 1226 | static xg_list_node xg_menu_item_cb_list; |
| 1227 | |
| 1228 | /* Allocate and initialize CL_DATA if NULL, otherwise increase ref_count. |
| 1229 | F is the frame CL_DATA will be initialized for. |
| 1230 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 1231 | |
| 1232 | The menu bar and all sub menus under the menu bar in a frame |
| 1233 | share the same structure, hence the reference count. |
| 1234 | |
| 1235 | Returns CL_DATA if CL_DATA is not NULL, or a pointer to a newly |
| 1236 | allocated xg_menu_cb_data if CL_DATA is NULL. */ |
| 1237 | static xg_menu_cb_data * |
| 1238 | make_cl_data (cl_data, f, highlight_cb) |
| 1239 | xg_menu_cb_data *cl_data; |
| 1240 | FRAME_PTR f; |
| 1241 | GCallback highlight_cb; |
| 1242 | { |
| 1243 | if (! cl_data) |
| 1244 | { |
| 1245 | cl_data = (xg_menu_cb_data*) xmalloc (sizeof (*cl_data)); |
| 1246 | cl_data->f = f; |
| 1247 | cl_data->menu_bar_vector = f->menu_bar_vector; |
| 1248 | cl_data->menu_bar_items_used = f->menu_bar_items_used; |
| 1249 | cl_data->highlight_cb = highlight_cb; |
| 1250 | cl_data->ref_count = 0; |
| 1251 | |
| 1252 | xg_list_insert (&xg_menu_cb_list, &cl_data->ptrs); |
| 1253 | } |
| 1254 | |
| 1255 | cl_data->ref_count++; |
| 1256 | |
| 1257 | return cl_data; |
| 1258 | } |
| 1259 | |
| 1260 | /* Update CL_DATA with values from frame F and with HIGHLIGHT_CB. |
| 1261 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 1262 | |
| 1263 | When the menu bar is updated, menu items may have been added and/or |
| 1264 | removed, so menu_bar_vector and menu_bar_items_used change. We must |
| 1265 | then update CL_DATA since it is used to determine which menu |
| 1266 | item that is invoked in the menu. |
| 1267 | HIGHLIGHT_CB could change, there is no check that the same |
| 1268 | function is given when modifying a menu bar as was given when |
| 1269 | creating the menu bar. */ |
| 1270 | static void |
| 1271 | update_cl_data (cl_data, f, highlight_cb) |
| 1272 | xg_menu_cb_data *cl_data; |
| 1273 | FRAME_PTR f; |
| 1274 | GCallback highlight_cb; |
| 1275 | { |
| 1276 | if (cl_data) |
| 1277 | { |
| 1278 | cl_data->f = f; |
| 1279 | cl_data->menu_bar_vector = f->menu_bar_vector; |
| 1280 | cl_data->menu_bar_items_used = f->menu_bar_items_used; |
| 1281 | cl_data->highlight_cb = highlight_cb; |
| 1282 | } |
| 1283 | } |
| 1284 | |
| 1285 | /* Decrease reference count for CL_DATA. |
| 1286 | If reference count is zero, free CL_DATA. */ |
| 1287 | static void |
| 1288 | unref_cl_data (cl_data) |
| 1289 | xg_menu_cb_data *cl_data; |
| 1290 | { |
| 1291 | if (cl_data && cl_data->ref_count > 0) |
| 1292 | { |
| 1293 | cl_data->ref_count--; |
| 1294 | if (cl_data->ref_count == 0) |
| 1295 | { |
| 1296 | xg_list_remove (&xg_menu_cb_list, &cl_data->ptrs); |
| 1297 | xfree (cl_data); |
| 1298 | } |
| 1299 | } |
| 1300 | } |
| 1301 | |
| 1302 | /* Function that marks all lisp data during GC. */ |
| 1303 | void |
| 1304 | xg_mark_data () |
| 1305 | { |
| 1306 | xg_list_node *iter; |
| 1307 | |
| 1308 | for (iter = xg_menu_cb_list.next; iter; iter = iter->next) |
| 1309 | mark_object (((xg_menu_cb_data *) iter)->menu_bar_vector); |
| 1310 | |
| 1311 | for (iter = xg_menu_item_cb_list.next; iter; iter = iter->next) |
| 1312 | { |
| 1313 | xg_menu_item_cb_data *cb_data = (xg_menu_item_cb_data *) iter; |
| 1314 | |
| 1315 | if (! NILP (cb_data->help)) |
| 1316 | mark_object (cb_data->help); |
| 1317 | } |
| 1318 | } |
| 1319 | |
| 1320 | |
| 1321 | /* Callback called when a menu item is destroyed. Used to free data. |
| 1322 | W is the widget that is being destroyed (not used). |
| 1323 | CLIENT_DATA points to the xg_menu_item_cb_data associated with the W. */ |
| 1324 | static void |
| 1325 | menuitem_destroy_callback (w, client_data) |
| 1326 | GtkWidget *w; |
| 1327 | gpointer client_data; |
| 1328 | { |
| 1329 | if (client_data) |
| 1330 | { |
| 1331 | xg_menu_item_cb_data *data = (xg_menu_item_cb_data*) client_data; |
| 1332 | xg_list_remove (&xg_menu_item_cb_list, &data->ptrs); |
| 1333 | xfree (data); |
| 1334 | } |
| 1335 | } |
| 1336 | |
| 1337 | /* Callback called when the pointer enters/leaves a menu item. |
| 1338 | W is the menu item. |
| 1339 | EVENT is either an enter event or leave event. |
| 1340 | CLIENT_DATA points to the xg_menu_item_cb_data associated with the W. |
| 1341 | |
| 1342 | Returns FALSE to tell GTK to keep processing this event. */ |
| 1343 | static gboolean |
| 1344 | menuitem_highlight_callback (w, event, client_data) |
| 1345 | GtkWidget *w; |
| 1346 | GdkEventCrossing *event; |
| 1347 | gpointer client_data; |
| 1348 | { |
| 1349 | if (client_data) |
| 1350 | { |
| 1351 | xg_menu_item_cb_data *data = (xg_menu_item_cb_data*) client_data; |
| 1352 | gpointer call_data = event->type == GDK_LEAVE_NOTIFY ? 0 : client_data; |
| 1353 | |
| 1354 | if (! NILP (data->help) && data->cl_data->highlight_cb) |
| 1355 | { |
| 1356 | GtkCallback func = (GtkCallback) data->cl_data->highlight_cb; |
| 1357 | (*func) (w, call_data); |
| 1358 | } |
| 1359 | } |
| 1360 | |
| 1361 | return FALSE; |
| 1362 | } |
| 1363 | |
| 1364 | /* Callback called when a menu is destroyed. Used to free data. |
| 1365 | W is the widget that is being destroyed (not used). |
| 1366 | CLIENT_DATA points to the xg_menu_cb_data associated with W. */ |
| 1367 | static void |
| 1368 | menu_destroy_callback (w, client_data) |
| 1369 | GtkWidget *w; |
| 1370 | gpointer client_data; |
| 1371 | { |
| 1372 | unref_cl_data ((xg_menu_cb_data*) client_data); |
| 1373 | } |
| 1374 | |
| 1375 | /* Callback called when a menu does a grab or ungrab. That means the |
| 1376 | menu has been activated or deactivated. |
| 1377 | Used to start a timer so the small timeout the menus in GTK uses before |
| 1378 | popping down a menu is seen by Emacs (see xg_process_timeouts above). |
| 1379 | W is the widget that does the grab (not used). |
| 1380 | UNGRAB_P is TRUE if this is an ungrab, FALSE if it is a grab. |
| 1381 | CLIENT_DATA is NULL (not used). */ |
| 1382 | static void |
| 1383 | menu_grab_callback (GtkWidget *widget, |
| 1384 | gboolean ungrab_p, |
| 1385 | gpointer client_data) |
| 1386 | { |
| 1387 | /* Keep track of total number of grabs. */ |
| 1388 | static int cnt; |
| 1389 | |
| 1390 | if (ungrab_p) cnt--; |
| 1391 | else cnt++; |
| 1392 | |
| 1393 | if (cnt > 0 && ! xg_timer) xg_start_timer (); |
| 1394 | else if (cnt == 0 && xg_timer) xg_stop_timer (); |
| 1395 | } |
| 1396 | |
| 1397 | /* Make a GTK widget that contains both UTF8_LABEL and UTF8_KEY (both |
| 1398 | must be non-NULL) and can be inserted into a menu item. |
| 1399 | |
| 1400 | Returns the GtkHBox. */ |
| 1401 | static GtkWidget * |
| 1402 | make_widget_for_menu_item (utf8_label, utf8_key) |
| 1403 | char *utf8_label; |
| 1404 | char *utf8_key; |
| 1405 | { |
| 1406 | GtkWidget *wlbl; |
| 1407 | GtkWidget *wkey; |
| 1408 | GtkWidget *wbox; |
| 1409 | |
| 1410 | wbox = gtk_hbox_new (FALSE, 0); |
| 1411 | wlbl = gtk_label_new (utf8_label); |
| 1412 | wkey = gtk_label_new (utf8_key); |
| 1413 | |
| 1414 | gtk_misc_set_alignment (GTK_MISC (wlbl), 0.0, 0.5); |
| 1415 | gtk_misc_set_alignment (GTK_MISC (wkey), 0.0, 0.5); |
| 1416 | |
| 1417 | gtk_box_pack_start (GTK_BOX (wbox), wlbl, TRUE, TRUE, 0); |
| 1418 | gtk_box_pack_start (GTK_BOX (wbox), wkey, FALSE, FALSE, 0); |
| 1419 | |
| 1420 | gtk_widget_set_name (wlbl, MENU_ITEM_NAME); |
| 1421 | gtk_widget_set_name (wkey, MENU_ITEM_NAME); |
| 1422 | gtk_widget_set_name (wbox, MENU_ITEM_NAME); |
| 1423 | |
| 1424 | return wbox; |
| 1425 | } |
| 1426 | |
| 1427 | /* Make and return a menu item widget with the key to the right. |
| 1428 | UTF8_LABEL is the text for the menu item (GTK uses UTF8 internally). |
| 1429 | UTF8_KEY is the text representing the key binding. |
| 1430 | ITEM is the widget_value describing the menu item. |
| 1431 | |
| 1432 | GROUP is an in/out parameter. If the menu item to be created is not |
| 1433 | part of any radio menu group, *GROUP contains NULL on entry and exit. |
| 1434 | If the menu item to be created is part of a radio menu group, on entry |
| 1435 | *GROUP contains the group to use, or NULL if this is the first item |
| 1436 | in the group. On exit, *GROUP contains the radio item group. |
| 1437 | |
| 1438 | Unfortunately, keys don't line up as nicely as in Motif, |
| 1439 | but the MacOS X version doesn't either, so I guess that is OK. */ |
| 1440 | static GtkWidget * |
| 1441 | make_menu_item (utf8_label, utf8_key, item, group) |
| 1442 | char *utf8_label; |
| 1443 | char *utf8_key; |
| 1444 | widget_value *item; |
| 1445 | GSList **group; |
| 1446 | { |
| 1447 | GtkWidget *w; |
| 1448 | GtkWidget *wtoadd = 0; |
| 1449 | |
| 1450 | /* It has been observed that some menu items have a NULL name field. |
| 1451 | This will lead to this function being called with a NULL utf8_label. |
| 1452 | GTK crashes on that so we set a blank label. Why there is a NULL |
| 1453 | name remains to be investigated. */ |
| 1454 | if (! utf8_label) utf8_label = " "; |
| 1455 | |
| 1456 | if (utf8_key) |
| 1457 | wtoadd = make_widget_for_menu_item (utf8_label, utf8_key); |
| 1458 | |
| 1459 | if (item->button_type == BUTTON_TYPE_TOGGLE) |
| 1460 | { |
| 1461 | *group = NULL; |
| 1462 | if (utf8_key) w = gtk_check_menu_item_new (); |
| 1463 | else w = gtk_check_menu_item_new_with_label (utf8_label); |
| 1464 | gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), item->selected); |
| 1465 | } |
| 1466 | else if (item->button_type == BUTTON_TYPE_RADIO) |
| 1467 | { |
| 1468 | if (utf8_key) w = gtk_radio_menu_item_new (*group); |
| 1469 | else w = gtk_radio_menu_item_new_with_label (*group, utf8_label); |
| 1470 | *group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (w)); |
| 1471 | if (item->selected) |
| 1472 | gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), TRUE); |
| 1473 | } |
| 1474 | else |
| 1475 | { |
| 1476 | *group = NULL; |
| 1477 | if (utf8_key) w = gtk_menu_item_new (); |
| 1478 | else w = gtk_menu_item_new_with_label (utf8_label); |
| 1479 | } |
| 1480 | |
| 1481 | if (wtoadd) gtk_container_add (GTK_CONTAINER (w), wtoadd); |
| 1482 | if (! item->enabled) gtk_widget_set_sensitive (w, FALSE); |
| 1483 | |
| 1484 | return w; |
| 1485 | } |
| 1486 | |
| 1487 | /* Return non-zero if LABEL specifies a separator (GTK only has one |
| 1488 | separator type) */ |
| 1489 | static int |
| 1490 | xg_separator_p (char *label) |
| 1491 | { |
| 1492 | if (! label) return 0; |
| 1493 | else if (strlen (label) > 3 |
| 1494 | && strncmp (label, "--", 2) == 0 |
| 1495 | && label[2] != '-') |
| 1496 | { |
| 1497 | static char* separator_names[] = { |
| 1498 | "space", |
| 1499 | "no-line", |
| 1500 | "single-line", |
| 1501 | "double-line", |
| 1502 | "single-dashed-line", |
| 1503 | "double-dashed-line", |
| 1504 | "shadow-etched-in", |
| 1505 | "shadow-etched-out", |
| 1506 | "shadow-etched-in-dash", |
| 1507 | "shadow-etched-out-dash", |
| 1508 | "shadow-double-etched-in", |
| 1509 | "shadow-double-etched-out", |
| 1510 | "shadow-double-etched-in-dash", |
| 1511 | "shadow-double-etched-out-dash", |
| 1512 | 0, |
| 1513 | }; |
| 1514 | |
| 1515 | int i; |
| 1516 | |
| 1517 | label += 2; |
| 1518 | for (i = 0; separator_names[i]; ++i) |
| 1519 | if (strcmp (label, separator_names[i]) == 0) |
| 1520 | return 1; |
| 1521 | } |
| 1522 | else |
| 1523 | { |
| 1524 | /* Old-style separator, maybe. It's a separator if it contains |
| 1525 | only dashes. */ |
| 1526 | while (*label == '-') |
| 1527 | ++label; |
| 1528 | if (*label == 0) return 1; |
| 1529 | } |
| 1530 | |
| 1531 | return 0; |
| 1532 | } |
| 1533 | |
| 1534 | static int xg_detached_menus; |
| 1535 | |
| 1536 | /* Returns non-zero if there are detached menus. */ |
| 1537 | int |
| 1538 | xg_have_tear_offs () |
| 1539 | { |
| 1540 | return xg_detached_menus > 0; |
| 1541 | } |
| 1542 | |
| 1543 | /* Callback invoked when a detached menu window is removed. Here we |
| 1544 | decrease the xg_detached_menus count. |
| 1545 | WIDGET is the top level window that is removed (the parent of the menu). |
| 1546 | CLIENT_DATA is not used. */ |
| 1547 | static void |
| 1548 | tearoff_remove (widget, client_data) |
| 1549 | GtkWidget *widget; |
| 1550 | gpointer client_data; |
| 1551 | { |
| 1552 | if (xg_detached_menus > 0) --xg_detached_menus; |
| 1553 | } |
| 1554 | |
| 1555 | /* Callback invoked when a menu is detached. It increases the |
| 1556 | xg_detached_menus count. |
| 1557 | WIDGET is the GtkTearoffMenuItem. |
| 1558 | CLIENT_DATA is not used. */ |
| 1559 | static void |
| 1560 | tearoff_activate (widget, client_data) |
| 1561 | GtkWidget *widget; |
| 1562 | gpointer client_data; |
| 1563 | { |
| 1564 | GtkWidget *menu = gtk_widget_get_parent (widget); |
| 1565 | if (gtk_menu_get_tearoff_state (GTK_MENU (menu))) |
| 1566 | { |
| 1567 | ++xg_detached_menus; |
| 1568 | g_signal_connect (G_OBJECT (gtk_widget_get_toplevel (widget)), |
| 1569 | "destroy", |
| 1570 | G_CALLBACK (tearoff_remove), 0); |
| 1571 | } |
| 1572 | } |
| 1573 | |
| 1574 | |
| 1575 | /* Create a menu item widget, and connect the callbacks. |
| 1576 | ITEM decribes the menu item. |
| 1577 | F is the frame the created menu belongs to. |
| 1578 | SELECT_CB is the callback to use when a menu item is selected. |
| 1579 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 1580 | CL_DATA points to the callback data to be used for this menu. |
| 1581 | GROUP is an in/out parameter. If the menu item to be created is not |
| 1582 | part of any radio menu group, *GROUP contains NULL on entry and exit. |
| 1583 | If the menu item to be created is part of a radio menu group, on entry |
| 1584 | *GROUP contains the group to use, or NULL if this is the first item |
| 1585 | in the group. On exit, *GROUP contains the radio item group. |
| 1586 | |
| 1587 | Returns the created GtkWidget. */ |
| 1588 | static GtkWidget * |
| 1589 | xg_create_one_menuitem (item, f, select_cb, highlight_cb, cl_data, group) |
| 1590 | widget_value *item; |
| 1591 | FRAME_PTR f; |
| 1592 | GCallback select_cb; |
| 1593 | GCallback highlight_cb; |
| 1594 | xg_menu_cb_data *cl_data; |
| 1595 | GSList **group; |
| 1596 | { |
| 1597 | char *utf8_label; |
| 1598 | char *utf8_key; |
| 1599 | GtkWidget *w; |
| 1600 | xg_menu_item_cb_data *cb_data; |
| 1601 | |
| 1602 | utf8_label = get_utf8_string (item->name); |
| 1603 | utf8_key = get_utf8_string (item->key); |
| 1604 | |
| 1605 | w = make_menu_item (utf8_label, utf8_key, item, group); |
| 1606 | |
| 1607 | if (utf8_label && utf8_label != item->name) g_free (utf8_label); |
| 1608 | if (utf8_key && utf8_key != item->key) g_free (utf8_key); |
| 1609 | |
| 1610 | cb_data = xmalloc (sizeof (xg_menu_item_cb_data)); |
| 1611 | |
| 1612 | xg_list_insert (&xg_menu_item_cb_list, &cb_data->ptrs); |
| 1613 | |
| 1614 | cb_data->unhighlight_id = cb_data->highlight_id = cb_data->select_id = 0; |
| 1615 | cb_data->help = item->help; |
| 1616 | cb_data->cl_data = cl_data; |
| 1617 | cb_data->call_data = item->call_data; |
| 1618 | |
| 1619 | g_signal_connect (G_OBJECT (w), |
| 1620 | "destroy", |
| 1621 | G_CALLBACK (menuitem_destroy_callback), |
| 1622 | cb_data); |
| 1623 | |
| 1624 | /* Put cb_data in widget, so we can get at it when modifying menubar */ |
| 1625 | g_object_set_data (G_OBJECT (w), XG_ITEM_DATA, cb_data); |
| 1626 | |
| 1627 | /* final item, not a submenu */ |
| 1628 | if (item->call_data && ! item->contents) |
| 1629 | { |
| 1630 | if (select_cb) |
| 1631 | cb_data->select_id |
| 1632 | = g_signal_connect (G_OBJECT (w), "activate", select_cb, cb_data); |
| 1633 | } |
| 1634 | |
| 1635 | if (! NILP (item->help) && highlight_cb) |
| 1636 | { |
| 1637 | /* We use enter/leave notify instead of select/deselect because |
| 1638 | select/deselect doesn't go well with detached menus. */ |
| 1639 | cb_data->highlight_id |
| 1640 | = g_signal_connect (G_OBJECT (w), |
| 1641 | "enter-notify-event", |
| 1642 | G_CALLBACK (menuitem_highlight_callback), |
| 1643 | cb_data); |
| 1644 | cb_data->unhighlight_id |
| 1645 | = g_signal_connect (G_OBJECT (w), |
| 1646 | "leave-notify-event", |
| 1647 | G_CALLBACK (menuitem_highlight_callback), |
| 1648 | cb_data); |
| 1649 | } |
| 1650 | |
| 1651 | return w; |
| 1652 | } |
| 1653 | |
| 1654 | static GtkWidget *create_menus P_ ((widget_value *, FRAME_PTR, GCallback, |
| 1655 | GCallback, GCallback, int, int, int, |
| 1656 | GtkWidget *, xg_menu_cb_data *, char *)); |
| 1657 | |
| 1658 | /* Create a full menu tree specified by DATA. |
| 1659 | F is the frame the created menu belongs to. |
| 1660 | SELECT_CB is the callback to use when a menu item is selected. |
| 1661 | DEACTIVATE_CB is the callback to use when a sub menu is not shown anymore. |
| 1662 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 1663 | POP_UP_P is non-zero if we shall create a popup menu. |
| 1664 | MENU_BAR_P is non-zero if we shall create a menu bar. |
| 1665 | ADD_TEAROFF_P is non-zero if we shall add a teroff menu item. Ignored |
| 1666 | if MENU_BAR_P is non-zero. |
| 1667 | TOPMENU is the topmost GtkWidget that others shall be placed under. |
| 1668 | It may be NULL, in that case we create the appropriate widget |
| 1669 | (menu bar or menu item depending on POP_UP_P and MENU_BAR_P) |
| 1670 | CL_DATA is the callback data we shall use for this menu, or NULL |
| 1671 | if we haven't set the first callback yet. |
| 1672 | NAME is the name to give to the top level menu if this function |
| 1673 | creates it. May be NULL to not set any name. |
| 1674 | |
| 1675 | Returns the top level GtkWidget. This is TOPLEVEL if TOPLEVEL is |
| 1676 | not NULL. |
| 1677 | |
| 1678 | This function calls itself to create submenus. */ |
| 1679 | |
| 1680 | static GtkWidget * |
| 1681 | create_menus (data, f, select_cb, deactivate_cb, highlight_cb, |
| 1682 | pop_up_p, menu_bar_p, add_tearoff_p, topmenu, cl_data, name) |
| 1683 | widget_value *data; |
| 1684 | FRAME_PTR f; |
| 1685 | GCallback select_cb; |
| 1686 | GCallback deactivate_cb; |
| 1687 | GCallback highlight_cb; |
| 1688 | int pop_up_p; |
| 1689 | int menu_bar_p; |
| 1690 | int add_tearoff_p; |
| 1691 | GtkWidget *topmenu; |
| 1692 | xg_menu_cb_data *cl_data; |
| 1693 | char *name; |
| 1694 | { |
| 1695 | widget_value *item; |
| 1696 | GtkWidget *wmenu = topmenu; |
| 1697 | GSList *group = NULL; |
| 1698 | |
| 1699 | if (! topmenu) |
| 1700 | { |
| 1701 | if (! menu_bar_p) |
| 1702 | { |
| 1703 | wmenu = gtk_menu_new (); |
| 1704 | xg_set_screen (wmenu, f); |
| 1705 | } |
| 1706 | else wmenu = gtk_menu_bar_new (); |
| 1707 | |
| 1708 | /* Put cl_data on the top menu for easier access. */ |
| 1709 | cl_data = make_cl_data (cl_data, f, highlight_cb); |
| 1710 | g_object_set_data (G_OBJECT (wmenu), XG_FRAME_DATA, (gpointer)cl_data); |
| 1711 | g_signal_connect (G_OBJECT (wmenu), "destroy", |
| 1712 | G_CALLBACK (menu_destroy_callback), cl_data); |
| 1713 | |
| 1714 | if (name) |
| 1715 | gtk_widget_set_name (wmenu, name); |
| 1716 | |
| 1717 | if (deactivate_cb) |
| 1718 | g_signal_connect (G_OBJECT (wmenu), |
| 1719 | "deactivate", deactivate_cb, 0); |
| 1720 | |
| 1721 | g_signal_connect (G_OBJECT (wmenu), |
| 1722 | "grab-notify", G_CALLBACK (menu_grab_callback), 0); |
| 1723 | } |
| 1724 | |
| 1725 | if (! menu_bar_p && add_tearoff_p) |
| 1726 | { |
| 1727 | GtkWidget *tearoff = gtk_tearoff_menu_item_new (); |
| 1728 | gtk_menu_shell_append (GTK_MENU_SHELL (wmenu), tearoff); |
| 1729 | |
| 1730 | g_signal_connect (G_OBJECT (tearoff), "activate", |
| 1731 | G_CALLBACK (tearoff_activate), 0); |
| 1732 | } |
| 1733 | |
| 1734 | for (item = data; item; item = item->next) |
| 1735 | { |
| 1736 | GtkWidget *w; |
| 1737 | |
| 1738 | if (pop_up_p && !item->contents && !item->call_data |
| 1739 | && !xg_separator_p (item->name)) |
| 1740 | { |
| 1741 | char *utf8_label; |
| 1742 | /* A title for a popup. We do the same as GTK does when |
| 1743 | creating titles, but it does not look good. */ |
| 1744 | group = NULL; |
| 1745 | utf8_label = get_utf8_string (item->name); |
| 1746 | |
| 1747 | gtk_menu_set_title (GTK_MENU (wmenu), utf8_label); |
| 1748 | w = gtk_menu_item_new_with_label (utf8_label); |
| 1749 | gtk_widget_set_sensitive (w, FALSE); |
| 1750 | if (utf8_label && utf8_label != item->name) g_free (utf8_label); |
| 1751 | } |
| 1752 | else if (xg_separator_p (item->name)) |
| 1753 | { |
| 1754 | group = NULL; |
| 1755 | /* GTK only have one separator type. */ |
| 1756 | w = gtk_separator_menu_item_new (); |
| 1757 | } |
| 1758 | else |
| 1759 | { |
| 1760 | w = xg_create_one_menuitem (item, |
| 1761 | f, |
| 1762 | item->contents ? 0 : select_cb, |
| 1763 | highlight_cb, |
| 1764 | cl_data, |
| 1765 | &group); |
| 1766 | |
| 1767 | if (item->contents) |
| 1768 | { |
| 1769 | GtkWidget *submenu = create_menus (item->contents, |
| 1770 | f, |
| 1771 | select_cb, |
| 1772 | deactivate_cb, |
| 1773 | highlight_cb, |
| 1774 | 0, |
| 1775 | 0, |
| 1776 | add_tearoff_p, |
| 1777 | 0, |
| 1778 | cl_data, |
| 1779 | 0); |
| 1780 | gtk_menu_item_set_submenu (GTK_MENU_ITEM (w), submenu); |
| 1781 | } |
| 1782 | } |
| 1783 | |
| 1784 | gtk_menu_shell_append (GTK_MENU_SHELL (wmenu), w); |
| 1785 | gtk_widget_set_name (w, MENU_ITEM_NAME); |
| 1786 | } |
| 1787 | |
| 1788 | return wmenu; |
| 1789 | } |
| 1790 | |
| 1791 | /* Create a menubar, popup menu or dialog, depending on the TYPE argument. |
| 1792 | TYPE can be "menubar", "popup" for popup menu, or "dialog" for a dialog |
| 1793 | with some text and buttons. |
| 1794 | F is the frame the created item belongs to. |
| 1795 | NAME is the name to use for the top widget. |
| 1796 | VAL is a widget_value structure describing items to be created. |
| 1797 | SELECT_CB is the callback to use when a menu item is selected or |
| 1798 | a dialog button is pressed. |
| 1799 | DEACTIVATE_CB is the callback to use when an item is deactivated. |
| 1800 | For a menu, when a sub menu is not shown anymore, for a dialog it is |
| 1801 | called when the dialog is popped down. |
| 1802 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 1803 | |
| 1804 | Returns the widget created. */ |
| 1805 | GtkWidget * |
| 1806 | xg_create_widget (type, name, f, val, |
| 1807 | select_cb, deactivate_cb, highlight_cb) |
| 1808 | char *type; |
| 1809 | char *name; |
| 1810 | FRAME_PTR f; |
| 1811 | widget_value *val; |
| 1812 | GCallback select_cb; |
| 1813 | GCallback deactivate_cb; |
| 1814 | GCallback highlight_cb; |
| 1815 | { |
| 1816 | GtkWidget *w = 0; |
| 1817 | int menu_bar_p = strcmp (type, "menubar") == 0; |
| 1818 | int pop_up_p = strcmp (type, "popup") == 0; |
| 1819 | |
| 1820 | if (strcmp (type, "dialog") == 0) |
| 1821 | { |
| 1822 | w = create_dialog (val, select_cb, deactivate_cb); |
| 1823 | xg_set_screen (w, f); |
| 1824 | gtk_window_set_transient_for (GTK_WINDOW (w), |
| 1825 | GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f))); |
| 1826 | gtk_window_set_destroy_with_parent (GTK_WINDOW (w), TRUE); |
| 1827 | gtk_widget_set_name (w, "emacs-dialog"); |
| 1828 | } |
| 1829 | else if (menu_bar_p || pop_up_p) |
| 1830 | { |
| 1831 | w = create_menus (val->contents, |
| 1832 | f, |
| 1833 | select_cb, |
| 1834 | deactivate_cb, |
| 1835 | highlight_cb, |
| 1836 | pop_up_p, |
| 1837 | menu_bar_p, |
| 1838 | menu_bar_p, |
| 1839 | 0, |
| 1840 | 0, |
| 1841 | name); |
| 1842 | |
| 1843 | /* Set the cursor to an arrow for popup menus when they are mapped. |
| 1844 | This is done by default for menu bar menus. */ |
| 1845 | if (pop_up_p) |
| 1846 | { |
| 1847 | /* Must realize so the GdkWindow inside the widget is created. */ |
| 1848 | gtk_widget_realize (w); |
| 1849 | xg_set_cursor (w, FRAME_X_DISPLAY_INFO (f)->xg_cursor); |
| 1850 | } |
| 1851 | } |
| 1852 | else |
| 1853 | { |
| 1854 | fprintf (stderr, "bad type in xg_create_widget: %s, doing nothing\n", |
| 1855 | type); |
| 1856 | } |
| 1857 | |
| 1858 | return w; |
| 1859 | } |
| 1860 | |
| 1861 | /* Return the label for menu item WITEM. */ |
| 1862 | static const char * |
| 1863 | xg_get_menu_item_label (witem) |
| 1864 | GtkMenuItem *witem; |
| 1865 | { |
| 1866 | GtkLabel *wlabel = GTK_LABEL (gtk_bin_get_child (GTK_BIN (witem))); |
| 1867 | return gtk_label_get_label (wlabel); |
| 1868 | } |
| 1869 | |
| 1870 | /* Return non-zero if the menu item WITEM has the text LABEL. */ |
| 1871 | static int |
| 1872 | xg_item_label_same_p (witem, label) |
| 1873 | GtkMenuItem *witem; |
| 1874 | char *label; |
| 1875 | { |
| 1876 | int is_same = 0; |
| 1877 | char *utf8_label = get_utf8_string (label); |
| 1878 | const char *old_label = witem ? xg_get_menu_item_label (witem) : 0; |
| 1879 | |
| 1880 | if (! old_label && ! utf8_label) |
| 1881 | is_same = 1; |
| 1882 | else if (old_label && utf8_label) |
| 1883 | is_same = strcmp (utf8_label, old_label) == 0; |
| 1884 | |
| 1885 | if (utf8_label && utf8_label != label) g_free (utf8_label); |
| 1886 | |
| 1887 | return is_same; |
| 1888 | } |
| 1889 | |
| 1890 | /* Remove widgets in LIST from container WCONT. */ |
| 1891 | static void |
| 1892 | remove_from_container (wcont, list) |
| 1893 | GtkWidget *wcont; |
| 1894 | GList *list; |
| 1895 | { |
| 1896 | GList *iter; |
| 1897 | |
| 1898 | for (iter = list; iter; iter = g_list_next (iter)) |
| 1899 | { |
| 1900 | GtkWidget *w = GTK_WIDGET (iter->data); |
| 1901 | |
| 1902 | /* Add a ref to w so we can explicitly destroy it later. */ |
| 1903 | gtk_widget_ref (w); |
| 1904 | gtk_container_remove (GTK_CONTAINER (wcont), w); |
| 1905 | |
| 1906 | /* If there is a menu under this widget that has been detached, |
| 1907 | there is a reference to it, and just removing w from the |
| 1908 | container does not destroy the submenu. By explicitly |
| 1909 | destroying w we make sure the submenu is destroyed, thus |
| 1910 | removing the detached window also if there was one. */ |
| 1911 | gtk_widget_destroy (w); |
| 1912 | } |
| 1913 | } |
| 1914 | |
| 1915 | /* Update the top level names in MENUBAR (i.e. not submenus). |
| 1916 | F is the frame the menu bar belongs to. |
| 1917 | *LIST is a list with the current menu bar names (menu item widgets). |
| 1918 | ITER is the item within *LIST that shall be updated. |
| 1919 | POS is the numerical position, starting at 0, of ITER in *LIST. |
| 1920 | VAL describes what the menu bar shall look like after the update. |
| 1921 | SELECT_CB is the callback to use when a menu item is selected. |
| 1922 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 1923 | CL_DATA points to the callback data to be used for this menu bar. |
| 1924 | |
| 1925 | This function calls itself to walk through the menu bar names. */ |
| 1926 | static void |
| 1927 | xg_update_menubar (menubar, f, list, iter, pos, val, |
| 1928 | select_cb, highlight_cb, cl_data) |
| 1929 | GtkWidget *menubar; |
| 1930 | FRAME_PTR f; |
| 1931 | GList **list; |
| 1932 | GList *iter; |
| 1933 | int pos; |
| 1934 | widget_value *val; |
| 1935 | GCallback select_cb; |
| 1936 | GCallback highlight_cb; |
| 1937 | xg_menu_cb_data *cl_data; |
| 1938 | { |
| 1939 | if (! iter && ! val) |
| 1940 | return; |
| 1941 | else if (iter && ! val) |
| 1942 | { |
| 1943 | /* Item(s) have been removed. Remove all remaining items. */ |
| 1944 | remove_from_container (menubar, iter); |
| 1945 | |
| 1946 | /* All updated. */ |
| 1947 | val = 0; |
| 1948 | iter = 0; |
| 1949 | } |
| 1950 | else if (! iter && val) |
| 1951 | { |
| 1952 | /* Item(s) added. Add all new items in one call. */ |
| 1953 | create_menus (val, f, select_cb, 0, highlight_cb, |
| 1954 | 0, 1, 0, menubar, cl_data, 0); |
| 1955 | |
| 1956 | /* All updated. */ |
| 1957 | val = 0; |
| 1958 | iter = 0; |
| 1959 | } |
| 1960 | /* Below this neither iter or val is NULL */ |
| 1961 | else if (xg_item_label_same_p (GTK_MENU_ITEM (iter->data), val->name)) |
| 1962 | { |
| 1963 | /* This item is still the same, check next item. */ |
| 1964 | val = val->next; |
| 1965 | iter = g_list_next (iter); |
| 1966 | ++pos; |
| 1967 | } |
| 1968 | else /* This item is changed. */ |
| 1969 | { |
| 1970 | GtkMenuItem *witem = GTK_MENU_ITEM (iter->data); |
| 1971 | GtkMenuItem *witem2 = 0; |
| 1972 | int val_in_menubar = 0; |
| 1973 | int iter_in_new_menubar = 0; |
| 1974 | GList *iter2; |
| 1975 | widget_value *cur; |
| 1976 | |
| 1977 | /* See if the changed entry (val) is present later in the menu bar */ |
| 1978 | for (iter2 = iter; |
| 1979 | iter2 && ! val_in_menubar; |
| 1980 | iter2 = g_list_next (iter2)) |
| 1981 | { |
| 1982 | witem2 = GTK_MENU_ITEM (iter2->data); |
| 1983 | val_in_menubar = xg_item_label_same_p (witem2, val->name); |
| 1984 | } |
| 1985 | |
| 1986 | /* See if the current entry (iter) is present later in the |
| 1987 | specification for the new menu bar. */ |
| 1988 | for (cur = val; cur && ! iter_in_new_menubar; cur = cur->next) |
| 1989 | iter_in_new_menubar = xg_item_label_same_p (witem, cur->name); |
| 1990 | |
| 1991 | if (val_in_menubar && ! iter_in_new_menubar) |
| 1992 | { |
| 1993 | int nr = pos; |
| 1994 | |
| 1995 | /* This corresponds to: |
| 1996 | Current: A B C |
| 1997 | New: A C |
| 1998 | Remove B. */ |
| 1999 | |
| 2000 | gtk_widget_ref (GTK_WIDGET (witem)); |
| 2001 | gtk_container_remove (GTK_CONTAINER (menubar), GTK_WIDGET (witem)); |
| 2002 | gtk_widget_destroy (GTK_WIDGET (witem)); |
| 2003 | |
| 2004 | /* Must get new list since the old changed. */ |
| 2005 | g_list_free (*list); |
| 2006 | *list = iter = gtk_container_get_children (GTK_CONTAINER (menubar)); |
| 2007 | while (nr-- > 0) iter = g_list_next (iter); |
| 2008 | } |
| 2009 | else if (! val_in_menubar && ! iter_in_new_menubar) |
| 2010 | { |
| 2011 | /* This corresponds to: |
| 2012 | Current: A B C |
| 2013 | New: A X C |
| 2014 | Rename B to X. This might seem to be a strange thing to do, |
| 2015 | since if there is a menu under B it will be totally wrong for X. |
| 2016 | But consider editing a C file. Then there is a C-mode menu |
| 2017 | (corresponds to B above). |
| 2018 | If then doing C-x C-f the minibuf menu (X above) replaces the |
| 2019 | C-mode menu. When returning from the minibuffer, we get |
| 2020 | back the C-mode menu. Thus we do: |
| 2021 | Rename B to X (C-mode to minibuf menu) |
| 2022 | Rename X to B (minibuf to C-mode menu). |
| 2023 | If the X menu hasn't been invoked, the menu under B |
| 2024 | is up to date when leaving the minibuffer. */ |
| 2025 | GtkLabel *wlabel = GTK_LABEL (gtk_bin_get_child (GTK_BIN (witem))); |
| 2026 | char *utf8_label = get_utf8_string (val->name); |
| 2027 | GtkWidget *submenu = gtk_menu_item_get_submenu (witem); |
| 2028 | |
| 2029 | gtk_label_set_text (wlabel, utf8_label); |
| 2030 | |
| 2031 | /* If this item has a submenu that has been detached, change |
| 2032 | the title in the WM decorations also. */ |
| 2033 | if (submenu && gtk_menu_get_tearoff_state (GTK_MENU (submenu))) |
| 2034 | /* Set the title of the detached window. */ |
| 2035 | gtk_menu_set_title (GTK_MENU (submenu), utf8_label); |
| 2036 | |
| 2037 | iter = g_list_next (iter); |
| 2038 | val = val->next; |
| 2039 | ++pos; |
| 2040 | } |
| 2041 | else if (! val_in_menubar && iter_in_new_menubar) |
| 2042 | { |
| 2043 | /* This corresponds to: |
| 2044 | Current: A B C |
| 2045 | New: A X B C |
| 2046 | Insert X. */ |
| 2047 | |
| 2048 | int nr = pos; |
| 2049 | GList *group = 0; |
| 2050 | GtkWidget *w = xg_create_one_menuitem (val, |
| 2051 | f, |
| 2052 | select_cb, |
| 2053 | highlight_cb, |
| 2054 | cl_data, |
| 2055 | &group); |
| 2056 | |
| 2057 | gtk_widget_set_name (w, MENU_ITEM_NAME); |
| 2058 | gtk_menu_shell_insert (GTK_MENU_SHELL (menubar), w, pos); |
| 2059 | |
| 2060 | g_list_free (*list); |
| 2061 | *list = iter = gtk_container_get_children (GTK_CONTAINER (menubar)); |
| 2062 | while (nr-- > 0) iter = g_list_next (iter); |
| 2063 | iter = g_list_next (iter); |
| 2064 | val = val->next; |
| 2065 | ++pos; |
| 2066 | } |
| 2067 | else /* if (val_in_menubar && iter_in_new_menubar) */ |
| 2068 | { |
| 2069 | int nr = pos; |
| 2070 | /* This corresponds to: |
| 2071 | Current: A B C |
| 2072 | New: A C B |
| 2073 | Move C before B */ |
| 2074 | |
| 2075 | gtk_widget_ref (GTK_WIDGET (witem2)); |
| 2076 | gtk_container_remove (GTK_CONTAINER (menubar), GTK_WIDGET (witem2)); |
| 2077 | gtk_menu_shell_insert (GTK_MENU_SHELL (menubar), |
| 2078 | GTK_WIDGET (witem2), pos); |
| 2079 | gtk_widget_unref (GTK_WIDGET (witem2)); |
| 2080 | |
| 2081 | g_list_free (*list); |
| 2082 | *list = iter = gtk_container_get_children (GTK_CONTAINER (menubar)); |
| 2083 | while (nr-- > 0) iter = g_list_next (iter); |
| 2084 | val = val->next; |
| 2085 | ++pos; |
| 2086 | } |
| 2087 | } |
| 2088 | |
| 2089 | /* Update the rest of the menu bar. */ |
| 2090 | xg_update_menubar (menubar, f, list, iter, pos, val, |
| 2091 | select_cb, highlight_cb, cl_data); |
| 2092 | } |
| 2093 | |
| 2094 | /* Update the menu item W so it corresponds to VAL. |
| 2095 | SELECT_CB is the callback to use when a menu item is selected. |
| 2096 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 2097 | CL_DATA is the data to set in the widget for menu invokation. */ |
| 2098 | static void |
| 2099 | xg_update_menu_item (val, w, select_cb, highlight_cb, cl_data) |
| 2100 | widget_value *val; |
| 2101 | GtkWidget *w; |
| 2102 | GCallback select_cb; |
| 2103 | GCallback highlight_cb; |
| 2104 | xg_menu_cb_data *cl_data; |
| 2105 | { |
| 2106 | GtkWidget *wchild; |
| 2107 | GtkLabel *wlbl = 0; |
| 2108 | GtkLabel *wkey = 0; |
| 2109 | char *utf8_label; |
| 2110 | char *utf8_key; |
| 2111 | const char *old_label = 0; |
| 2112 | const char *old_key = 0; |
| 2113 | xg_menu_item_cb_data *cb_data; |
| 2114 | |
| 2115 | wchild = gtk_bin_get_child (GTK_BIN (w)); |
| 2116 | utf8_label = get_utf8_string (val->name); |
| 2117 | utf8_key = get_utf8_string (val->key); |
| 2118 | |
| 2119 | /* See if W is a menu item with a key. See make_menu_item above. */ |
| 2120 | if (GTK_IS_HBOX (wchild)) |
| 2121 | { |
| 2122 | GList *list = gtk_container_get_children (GTK_CONTAINER (wchild)); |
| 2123 | |
| 2124 | wlbl = GTK_LABEL (list->data); |
| 2125 | wkey = GTK_LABEL (list->next->data); |
| 2126 | g_list_free (list); |
| 2127 | |
| 2128 | if (! utf8_key) |
| 2129 | { |
| 2130 | /* Remove the key and keep just the label. */ |
| 2131 | gtk_widget_ref (GTK_WIDGET (wlbl)); |
| 2132 | gtk_container_remove (GTK_CONTAINER (w), wchild); |
| 2133 | gtk_container_add (GTK_CONTAINER (w), GTK_WIDGET (wlbl)); |
| 2134 | wkey = 0; |
| 2135 | } |
| 2136 | |
| 2137 | } |
| 2138 | else /* Just a label. */ |
| 2139 | { |
| 2140 | wlbl = GTK_LABEL (wchild); |
| 2141 | |
| 2142 | /* Check if there is now a key. */ |
| 2143 | if (utf8_key) |
| 2144 | { |
| 2145 | GtkWidget *wtoadd = make_widget_for_menu_item (utf8_label, utf8_key); |
| 2146 | GList *list = gtk_container_get_children (GTK_CONTAINER (wtoadd)); |
| 2147 | |
| 2148 | wlbl = GTK_LABEL (list->data); |
| 2149 | wkey = GTK_LABEL (list->next->data); |
| 2150 | g_list_free (list); |
| 2151 | |
| 2152 | gtk_container_remove (GTK_CONTAINER (w), wchild); |
| 2153 | gtk_container_add (GTK_CONTAINER (w), wtoadd); |
| 2154 | } |
| 2155 | } |
| 2156 | |
| 2157 | |
| 2158 | if (wkey) old_key = gtk_label_get_label (wkey); |
| 2159 | if (wlbl) old_label = gtk_label_get_label (wlbl); |
| 2160 | |
| 2161 | if (wkey && utf8_key && (! old_key || strcmp (utf8_key, old_key) != 0)) |
| 2162 | gtk_label_set_text (wkey, utf8_key); |
| 2163 | |
| 2164 | if (! old_label || strcmp (utf8_label, old_label) != 0) |
| 2165 | gtk_label_set_text (wlbl, utf8_label); |
| 2166 | |
| 2167 | if (utf8_key && utf8_key != val->key) g_free (utf8_key); |
| 2168 | if (utf8_label && utf8_label != val->name) g_free (utf8_label); |
| 2169 | |
| 2170 | if (! val->enabled && GTK_WIDGET_SENSITIVE (w)) |
| 2171 | gtk_widget_set_sensitive (w, FALSE); |
| 2172 | else if (val->enabled && ! GTK_WIDGET_SENSITIVE (w)) |
| 2173 | gtk_widget_set_sensitive (w, TRUE); |
| 2174 | |
| 2175 | cb_data = (xg_menu_item_cb_data*) g_object_get_data (G_OBJECT (w), |
| 2176 | XG_ITEM_DATA); |
| 2177 | if (cb_data) |
| 2178 | { |
| 2179 | cb_data->call_data = val->call_data; |
| 2180 | cb_data->help = val->help; |
| 2181 | cb_data->cl_data = cl_data; |
| 2182 | |
| 2183 | /* We assume the callback functions don't change. */ |
| 2184 | if (val->call_data && ! val->contents) |
| 2185 | { |
| 2186 | /* This item shall have a select callback. */ |
| 2187 | if (! cb_data->select_id) |
| 2188 | cb_data->select_id |
| 2189 | = g_signal_connect (G_OBJECT (w), "activate", |
| 2190 | select_cb, cb_data); |
| 2191 | } |
| 2192 | else if (cb_data->select_id) |
| 2193 | { |
| 2194 | g_signal_handler_disconnect (w, cb_data->select_id); |
| 2195 | cb_data->select_id = 0; |
| 2196 | } |
| 2197 | |
| 2198 | if (NILP (cb_data->help)) |
| 2199 | { |
| 2200 | /* Shall not have help. Remove if any existed previously. */ |
| 2201 | if (cb_data->highlight_id) |
| 2202 | { |
| 2203 | g_signal_handler_disconnect (G_OBJECT (w), |
| 2204 | cb_data->highlight_id); |
| 2205 | cb_data->highlight_id = 0; |
| 2206 | } |
| 2207 | if (cb_data->unhighlight_id) |
| 2208 | { |
| 2209 | g_signal_handler_disconnect (G_OBJECT (w), |
| 2210 | cb_data->unhighlight_id); |
| 2211 | cb_data->unhighlight_id = 0; |
| 2212 | } |
| 2213 | } |
| 2214 | else if (! cb_data->highlight_id && highlight_cb) |
| 2215 | { |
| 2216 | /* Have help now, but didn't previously. Add callback. */ |
| 2217 | cb_data->highlight_id |
| 2218 | = g_signal_connect (G_OBJECT (w), |
| 2219 | "enter-notify-event", |
| 2220 | G_CALLBACK (menuitem_highlight_callback), |
| 2221 | cb_data); |
| 2222 | cb_data->unhighlight_id |
| 2223 | = g_signal_connect (G_OBJECT (w), |
| 2224 | "leave-notify-event", |
| 2225 | G_CALLBACK (menuitem_highlight_callback), |
| 2226 | cb_data); |
| 2227 | } |
| 2228 | } |
| 2229 | } |
| 2230 | |
| 2231 | /* Update the toggle menu item W so it corresponds to VAL. */ |
| 2232 | static void |
| 2233 | xg_update_toggle_item (val, w) |
| 2234 | widget_value *val; |
| 2235 | GtkWidget *w; |
| 2236 | { |
| 2237 | gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), val->selected); |
| 2238 | } |
| 2239 | |
| 2240 | /* Update the radio menu item W so it corresponds to VAL. */ |
| 2241 | static void |
| 2242 | xg_update_radio_item (val, w) |
| 2243 | widget_value *val; |
| 2244 | GtkWidget *w; |
| 2245 | { |
| 2246 | gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (w), val->selected); |
| 2247 | } |
| 2248 | |
| 2249 | /* Update the sub menu SUBMENU and all its children so it corresponds to VAL. |
| 2250 | SUBMENU may be NULL, in that case a new menu is created. |
| 2251 | F is the frame the menu bar belongs to. |
| 2252 | VAL describes the contents of the menu bar. |
| 2253 | SELECT_CB is the callback to use when a menu item is selected. |
| 2254 | DEACTIVATE_CB is the callback to use when a sub menu is not shown anymore. |
| 2255 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. |
| 2256 | CL_DATA is the call back data to use for any newly created items. |
| 2257 | |
| 2258 | Returns the updated submenu widget, that is SUBMENU unless SUBMENU |
| 2259 | was NULL. */ |
| 2260 | |
| 2261 | static GtkWidget * |
| 2262 | xg_update_submenu (submenu, f, val, |
| 2263 | select_cb, deactivate_cb, highlight_cb, cl_data) |
| 2264 | GtkWidget *submenu; |
| 2265 | FRAME_PTR f; |
| 2266 | widget_value *val; |
| 2267 | GCallback select_cb; |
| 2268 | GCallback deactivate_cb; |
| 2269 | GCallback highlight_cb; |
| 2270 | xg_menu_cb_data *cl_data; |
| 2271 | { |
| 2272 | GtkWidget *newsub = submenu; |
| 2273 | GList *list = 0; |
| 2274 | GList *iter; |
| 2275 | widget_value *cur; |
| 2276 | int has_tearoff_p = 0; |
| 2277 | GList *first_radio = 0; |
| 2278 | |
| 2279 | if (submenu) |
| 2280 | list = gtk_container_get_children (GTK_CONTAINER (submenu)); |
| 2281 | |
| 2282 | for (cur = val, iter = list; |
| 2283 | cur && iter; |
| 2284 | iter = g_list_next (iter), cur = cur->next) |
| 2285 | { |
| 2286 | GtkWidget *w = GTK_WIDGET (iter->data); |
| 2287 | |
| 2288 | /* Skip tearoff items, they have no counterpart in val. */ |
| 2289 | if (GTK_IS_TEAROFF_MENU_ITEM (w)) |
| 2290 | { |
| 2291 | has_tearoff_p = 1; |
| 2292 | iter = g_list_next (iter); |
| 2293 | if (iter) w = GTK_WIDGET (iter->data); |
| 2294 | else break; |
| 2295 | } |
| 2296 | |
| 2297 | /* Remember first radio button in a group. If we get a mismatch in |
| 2298 | a radio group we must rebuild the whole group so that the connections |
| 2299 | in GTK becomes correct. */ |
| 2300 | if (cur->button_type == BUTTON_TYPE_RADIO && ! first_radio) |
| 2301 | first_radio = iter; |
| 2302 | else if (cur->button_type != BUTTON_TYPE_RADIO |
| 2303 | && ! GTK_IS_RADIO_MENU_ITEM (w)) |
| 2304 | first_radio = 0; |
| 2305 | |
| 2306 | if (GTK_IS_SEPARATOR_MENU_ITEM (w)) |
| 2307 | { |
| 2308 | if (! xg_separator_p (cur->name)) |
| 2309 | break; |
| 2310 | } |
| 2311 | else if (GTK_IS_CHECK_MENU_ITEM (w)) |
| 2312 | { |
| 2313 | if (cur->button_type != BUTTON_TYPE_TOGGLE) |
| 2314 | break; |
| 2315 | xg_update_toggle_item (cur, w); |
| 2316 | xg_update_menu_item (cur, w, select_cb, highlight_cb, cl_data); |
| 2317 | } |
| 2318 | else if (GTK_IS_RADIO_MENU_ITEM (w)) |
| 2319 | { |
| 2320 | if (cur->button_type != BUTTON_TYPE_RADIO) |
| 2321 | break; |
| 2322 | xg_update_radio_item (cur, w); |
| 2323 | xg_update_menu_item (cur, w, select_cb, highlight_cb, cl_data); |
| 2324 | } |
| 2325 | else if (GTK_IS_MENU_ITEM (w)) |
| 2326 | { |
| 2327 | GtkMenuItem *witem = GTK_MENU_ITEM (w); |
| 2328 | GtkWidget *sub; |
| 2329 | |
| 2330 | if (cur->button_type != BUTTON_TYPE_NONE || |
| 2331 | xg_separator_p (cur->name)) |
| 2332 | break; |
| 2333 | |
| 2334 | xg_update_menu_item (cur, w, select_cb, highlight_cb, cl_data); |
| 2335 | |
| 2336 | sub = gtk_menu_item_get_submenu (witem); |
| 2337 | if (sub && ! cur->contents) |
| 2338 | { |
| 2339 | /* Not a submenu anymore. */ |
| 2340 | gtk_widget_ref (sub); |
| 2341 | gtk_menu_item_remove_submenu (witem); |
| 2342 | gtk_widget_destroy (sub); |
| 2343 | } |
| 2344 | else if (cur->contents) |
| 2345 | { |
| 2346 | GtkWidget *nsub; |
| 2347 | |
| 2348 | nsub = xg_update_submenu (sub, f, cur->contents, |
| 2349 | select_cb, deactivate_cb, |
| 2350 | highlight_cb, cl_data); |
| 2351 | |
| 2352 | /* If this item just became a submenu, we must set it. */ |
| 2353 | if (nsub != sub) |
| 2354 | gtk_menu_item_set_submenu (witem, nsub); |
| 2355 | } |
| 2356 | } |
| 2357 | else |
| 2358 | { |
| 2359 | /* Structural difference. Remove everything from here and down |
| 2360 | in SUBMENU. */ |
| 2361 | break; |
| 2362 | } |
| 2363 | } |
| 2364 | |
| 2365 | /* Remove widgets from first structual change. */ |
| 2366 | if (iter) |
| 2367 | { |
| 2368 | /* If we are adding new menu items below, we must remove from |
| 2369 | first radio button so that radio groups become correct. */ |
| 2370 | if (cur && first_radio) remove_from_container (submenu, first_radio); |
| 2371 | else remove_from_container (submenu, iter); |
| 2372 | } |
| 2373 | |
| 2374 | if (cur) |
| 2375 | { |
| 2376 | /* More items added. Create them. */ |
| 2377 | newsub = create_menus (cur, |
| 2378 | f, |
| 2379 | select_cb, |
| 2380 | deactivate_cb, |
| 2381 | highlight_cb, |
| 2382 | 0, |
| 2383 | 0, |
| 2384 | ! has_tearoff_p, |
| 2385 | submenu, |
| 2386 | cl_data, |
| 2387 | 0); |
| 2388 | } |
| 2389 | |
| 2390 | if (list) g_list_free (list); |
| 2391 | |
| 2392 | return newsub; |
| 2393 | } |
| 2394 | |
| 2395 | /* Update the MENUBAR. |
| 2396 | F is the frame the menu bar belongs to. |
| 2397 | VAL describes the contents of the menu bar. |
| 2398 | If DEEP_P is non-zero, rebuild all but the top level menu names in |
| 2399 | the MENUBAR. If DEEP_P is zero, just rebuild the names in the menubar. |
| 2400 | SELECT_CB is the callback to use when a menu item is selected. |
| 2401 | DEACTIVATE_CB is the callback to use when a sub menu is not shown anymore. |
| 2402 | HIGHLIGHT_CB is the callback to call when entering/leaving menu items. */ |
| 2403 | void |
| 2404 | xg_modify_menubar_widgets (menubar, f, val, deep_p, |
| 2405 | select_cb, deactivate_cb, highlight_cb) |
| 2406 | GtkWidget *menubar; |
| 2407 | FRAME_PTR f; |
| 2408 | widget_value *val; |
| 2409 | int deep_p; |
| 2410 | GCallback select_cb; |
| 2411 | GCallback deactivate_cb; |
| 2412 | GCallback highlight_cb; |
| 2413 | { |
| 2414 | xg_menu_cb_data *cl_data; |
| 2415 | GList *list = gtk_container_get_children (GTK_CONTAINER (menubar)); |
| 2416 | |
| 2417 | if (! list) return; |
| 2418 | |
| 2419 | cl_data = (xg_menu_cb_data*) g_object_get_data (G_OBJECT (menubar), |
| 2420 | XG_FRAME_DATA); |
| 2421 | |
| 2422 | xg_update_menubar (menubar, f, &list, list, 0, val->contents, |
| 2423 | select_cb, highlight_cb, cl_data); |
| 2424 | |
| 2425 | if (deep_p); |
| 2426 | { |
| 2427 | widget_value *cur; |
| 2428 | |
| 2429 | /* Update all sub menus. |
| 2430 | We must keep the submenus (GTK menu item widgets) since the |
| 2431 | X Window in the XEvent that activates the menu are those widgets. */ |
| 2432 | |
| 2433 | /* Update cl_data, menu_item things in F may have changed. */ |
| 2434 | update_cl_data (cl_data, f, highlight_cb); |
| 2435 | |
| 2436 | for (cur = val->contents; cur; cur = cur->next) |
| 2437 | { |
| 2438 | GList *iter; |
| 2439 | GtkWidget *sub = 0; |
| 2440 | GtkWidget *newsub; |
| 2441 | GtkMenuItem *witem; |
| 2442 | |
| 2443 | /* Find sub menu that corresponds to val and update it. */ |
| 2444 | for (iter = list ; iter; iter = g_list_next (iter)) |
| 2445 | { |
| 2446 | witem = GTK_MENU_ITEM (iter->data); |
| 2447 | if (xg_item_label_same_p (witem, cur->name)) |
| 2448 | { |
| 2449 | sub = gtk_menu_item_get_submenu (witem); |
| 2450 | break; |
| 2451 | } |
| 2452 | } |
| 2453 | |
| 2454 | newsub = xg_update_submenu (sub, |
| 2455 | f, |
| 2456 | cur->contents, |
| 2457 | select_cb, |
| 2458 | deactivate_cb, |
| 2459 | highlight_cb, |
| 2460 | cl_data); |
| 2461 | /* sub may still be NULL. If we just updated non deep and added |
| 2462 | a new menu bar item, it has no sub menu yet. So we set the |
| 2463 | newly created sub menu under witem. */ |
| 2464 | if (newsub != sub) |
| 2465 | { |
| 2466 | xg_set_screen (newsub, f); |
| 2467 | gtk_menu_item_set_submenu (witem, newsub); |
| 2468 | } |
| 2469 | } |
| 2470 | } |
| 2471 | |
| 2472 | g_list_free (list); |
| 2473 | gtk_widget_show_all (menubar); |
| 2474 | } |
| 2475 | |
| 2476 | /* Recompute all the widgets of frame F, when the menu bar has been |
| 2477 | changed. Value is non-zero if widgets were updated. */ |
| 2478 | |
| 2479 | int |
| 2480 | xg_update_frame_menubar (f) |
| 2481 | FRAME_PTR f; |
| 2482 | { |
| 2483 | struct x_output *x = f->output_data.x; |
| 2484 | GtkRequisition req; |
| 2485 | |
| 2486 | if (!x->menubar_widget || GTK_WIDGET_MAPPED (x->menubar_widget)) |
| 2487 | return 0; |
| 2488 | |
| 2489 | BLOCK_INPUT; |
| 2490 | |
| 2491 | gtk_box_pack_start (GTK_BOX (x->vbox_widget), x->menubar_widget, |
| 2492 | FALSE, FALSE, 0); |
| 2493 | gtk_box_reorder_child (GTK_BOX (x->vbox_widget), x->menubar_widget, 0); |
| 2494 | |
| 2495 | gtk_widget_show_all (x->menubar_widget); |
| 2496 | gtk_widget_size_request (x->menubar_widget, &req); |
| 2497 | |
| 2498 | FRAME_MENUBAR_HEIGHT (f) = req.height; |
| 2499 | |
| 2500 | /* The height has changed, resize outer widget and set columns |
| 2501 | rows to what we had before adding the menu bar. */ |
| 2502 | xg_resize_outer_widget (f, FRAME_COLS (f), FRAME_LINES (f)); |
| 2503 | |
| 2504 | SET_FRAME_GARBAGED (f); |
| 2505 | UNBLOCK_INPUT; |
| 2506 | |
| 2507 | return 1; |
| 2508 | } |
| 2509 | |
| 2510 | /* Get rid of the menu bar of frame F, and free its storage. |
| 2511 | This is used when deleting a frame, and when turning off the menu bar. */ |
| 2512 | |
| 2513 | void |
| 2514 | free_frame_menubar (f) |
| 2515 | FRAME_PTR f; |
| 2516 | { |
| 2517 | struct x_output *x = f->output_data.x; |
| 2518 | |
| 2519 | if (x->menubar_widget) |
| 2520 | { |
| 2521 | BLOCK_INPUT; |
| 2522 | |
| 2523 | gtk_container_remove (GTK_CONTAINER (x->vbox_widget), x->menubar_widget); |
| 2524 | /* The menubar and its children shall be deleted when removed from |
| 2525 | the container. */ |
| 2526 | x->menubar_widget = 0; |
| 2527 | FRAME_MENUBAR_HEIGHT (f) = 0; |
| 2528 | |
| 2529 | /* The height has changed, resize outer widget and set columns |
| 2530 | rows to what we had before removing the menu bar. */ |
| 2531 | xg_resize_outer_widget (f, FRAME_COLS (f), FRAME_LINES (f)); |
| 2532 | |
| 2533 | SET_FRAME_GARBAGED (f); |
| 2534 | UNBLOCK_INPUT; |
| 2535 | } |
| 2536 | } |
| 2537 | |
| 2538 | |
| 2539 | \f |
| 2540 | /*********************************************************************** |
| 2541 | Scroll bar functions |
| 2542 | ***********************************************************************/ |
| 2543 | |
| 2544 | |
| 2545 | /* Setting scroll bar values invokes the callback. Use this variable |
| 2546 | to indicate that callback should do nothing. */ |
| 2547 | int xg_ignore_gtk_scrollbar; |
| 2548 | |
| 2549 | /* SET_SCROLL_BAR_X_WINDOW assumes the second argument fits in |
| 2550 | 32 bits. But we want to store pointers, and they may be larger |
| 2551 | than 32 bits. Keep a mapping from integer index to widget pointers |
| 2552 | to get around the 32 bit limitation. */ |
| 2553 | static struct |
| 2554 | { |
| 2555 | GtkWidget **widgets; |
| 2556 | int max_size; |
| 2557 | int used; |
| 2558 | } id_to_widget; |
| 2559 | |
| 2560 | /* Grow this much every time we need to allocate more */ |
| 2561 | #define ID_TO_WIDGET_INCR 32 |
| 2562 | |
| 2563 | /* Store the widget pointer W in id_to_widget and return the integer index. */ |
| 2564 | static int |
| 2565 | xg_store_widget_in_map (w) |
| 2566 | GtkWidget *w; |
| 2567 | { |
| 2568 | int i; |
| 2569 | |
| 2570 | if (id_to_widget.max_size == id_to_widget.used) |
| 2571 | { |
| 2572 | int new_size = id_to_widget.max_size + ID_TO_WIDGET_INCR; |
| 2573 | |
| 2574 | id_to_widget.widgets = xrealloc (id_to_widget.widgets, |
| 2575 | sizeof (GtkWidget *)*new_size); |
| 2576 | |
| 2577 | for (i = id_to_widget.max_size; i < new_size; ++i) |
| 2578 | id_to_widget.widgets[i] = 0; |
| 2579 | id_to_widget.max_size = new_size; |
| 2580 | } |
| 2581 | |
| 2582 | /* Just loop over the array and find a free place. After all, |
| 2583 | how many scroll bars are we creating? Should be a small number. |
| 2584 | The check above guarantees we will find a free place. */ |
| 2585 | for (i = 0; i < id_to_widget.max_size; ++i) |
| 2586 | { |
| 2587 | if (! id_to_widget.widgets[i]) |
| 2588 | { |
| 2589 | id_to_widget.widgets[i] = w; |
| 2590 | ++id_to_widget.used; |
| 2591 | |
| 2592 | return i; |
| 2593 | } |
| 2594 | } |
| 2595 | |
| 2596 | /* Should never end up here */ |
| 2597 | abort (); |
| 2598 | } |
| 2599 | |
| 2600 | /* Remove pointer at IDX from id_to_widget. |
| 2601 | Called when scroll bar is destroyed. */ |
| 2602 | static void |
| 2603 | xg_remove_widget_from_map (idx) |
| 2604 | int idx; |
| 2605 | { |
| 2606 | if (idx < id_to_widget.max_size && id_to_widget.widgets[idx] != 0) |
| 2607 | { |
| 2608 | id_to_widget.widgets[idx] = 0; |
| 2609 | --id_to_widget.used; |
| 2610 | } |
| 2611 | } |
| 2612 | |
| 2613 | /* Get the widget pointer at IDX from id_to_widget. */ |
| 2614 | static GtkWidget * |
| 2615 | xg_get_widget_from_map (idx) |
| 2616 | int idx; |
| 2617 | { |
| 2618 | if (idx < id_to_widget.max_size && id_to_widget.widgets[idx] != 0) |
| 2619 | return id_to_widget.widgets[idx]; |
| 2620 | |
| 2621 | return 0; |
| 2622 | } |
| 2623 | |
| 2624 | /* Return the scrollbar id for X Window WID on display DPY. |
| 2625 | Return -1 if WID not in id_to_widget. */ |
| 2626 | int |
| 2627 | xg_get_scroll_id_for_window (dpy, wid) |
| 2628 | Display *dpy; |
| 2629 | Window wid; |
| 2630 | { |
| 2631 | int idx; |
| 2632 | GtkWidget *w; |
| 2633 | |
| 2634 | w = xg_win_to_widget (dpy, wid); |
| 2635 | |
| 2636 | if (w) |
| 2637 | { |
| 2638 | for (idx = 0; idx < id_to_widget.max_size; ++idx) |
| 2639 | if (id_to_widget.widgets[idx] == w) |
| 2640 | return idx; |
| 2641 | } |
| 2642 | |
| 2643 | return -1; |
| 2644 | } |
| 2645 | |
| 2646 | /* Callback invoked when scroll bar WIDGET is destroyed. |
| 2647 | DATA is the index into id_to_widget for WIDGET. |
| 2648 | We free pointer to last scroll bar values here and remove the index. */ |
| 2649 | static void |
| 2650 | xg_gtk_scroll_destroy (widget, data) |
| 2651 | GtkWidget *widget; |
| 2652 | gpointer data; |
| 2653 | { |
| 2654 | gpointer p; |
| 2655 | int id = (int)data; |
| 2656 | |
| 2657 | p = g_object_get_data (G_OBJECT (widget), XG_LAST_SB_DATA); |
| 2658 | if (p) xfree (p); |
| 2659 | xg_remove_widget_from_map (id); |
| 2660 | } |
| 2661 | |
| 2662 | /* Callback for button press/release events. Used to start timer so that |
| 2663 | the scroll bar repetition timer in GTK gets handeled. |
| 2664 | Also, sets bar->dragging to Qnil when dragging (button release) is done. |
| 2665 | WIDGET is the scroll bar widget the event is for (not used). |
| 2666 | EVENT contains the event. |
| 2667 | USER_DATA points to the struct scrollbar structure. |
| 2668 | |
| 2669 | Returns FALSE to tell GTK that it shall continue propagate the event |
| 2670 | to widgets. */ |
| 2671 | static gboolean |
| 2672 | scroll_bar_button_cb (widget, event, user_data) |
| 2673 | GtkWidget *widget; |
| 2674 | GdkEventButton *event; |
| 2675 | gpointer user_data; |
| 2676 | { |
| 2677 | if (event->type == GDK_BUTTON_PRESS && ! xg_timer) |
| 2678 | xg_start_timer (); |
| 2679 | else if (event->type == GDK_BUTTON_RELEASE) |
| 2680 | { |
| 2681 | struct scroll_bar *bar = (struct scroll_bar *) user_data; |
| 2682 | if (xg_timer) xg_stop_timer (); |
| 2683 | bar->dragging = Qnil; |
| 2684 | } |
| 2685 | |
| 2686 | return FALSE; |
| 2687 | } |
| 2688 | |
| 2689 | /* Create a scroll bar widget for frame F. Store the scroll bar |
| 2690 | in BAR. |
| 2691 | SCROLL_CALLBACK is the callback to invoke when the value of the |
| 2692 | bar changes. |
| 2693 | SCROLL_BAR_NAME is the name we use for the scroll bar. Can be used |
| 2694 | to set resources for the widget. */ |
| 2695 | void |
| 2696 | xg_create_scroll_bar (f, bar, scroll_callback, scroll_bar_name) |
| 2697 | FRAME_PTR f; |
| 2698 | struct scroll_bar *bar; |
| 2699 | GCallback scroll_callback; |
| 2700 | char *scroll_bar_name; |
| 2701 | { |
| 2702 | GtkWidget *wscroll; |
| 2703 | GtkWidget *webox; |
| 2704 | GtkObject *vadj; |
| 2705 | int scroll_id; |
| 2706 | |
| 2707 | /* Page, step increment values are not so important here, they |
| 2708 | will be corrected in x_set_toolkit_scroll_bar_thumb. */ |
| 2709 | vadj = gtk_adjustment_new (XG_SB_MIN, XG_SB_MIN, XG_SB_MAX, |
| 2710 | 0.1, 0.1, 0.1); |
| 2711 | |
| 2712 | wscroll = gtk_vscrollbar_new (GTK_ADJUSTMENT (vadj)); |
| 2713 | webox = gtk_event_box_new (); |
| 2714 | gtk_widget_set_name (wscroll, scroll_bar_name); |
| 2715 | gtk_range_set_update_policy (GTK_RANGE (wscroll), GTK_UPDATE_CONTINUOUS); |
| 2716 | |
| 2717 | scroll_id = xg_store_widget_in_map (wscroll); |
| 2718 | |
| 2719 | g_signal_connect (G_OBJECT (wscroll), |
| 2720 | "value-changed", |
| 2721 | scroll_callback, |
| 2722 | (gpointer) bar); |
| 2723 | g_signal_connect (G_OBJECT (wscroll), |
| 2724 | "destroy", |
| 2725 | G_CALLBACK (xg_gtk_scroll_destroy), |
| 2726 | (gpointer) scroll_id); |
| 2727 | |
| 2728 | /* Connect to button press and button release to detect if any scroll bar |
| 2729 | has the pointer. */ |
| 2730 | g_signal_connect (G_OBJECT (wscroll), |
| 2731 | "button-press-event", |
| 2732 | G_CALLBACK (scroll_bar_button_cb), |
| 2733 | (gpointer) bar); |
| 2734 | g_signal_connect (G_OBJECT (wscroll), |
| 2735 | "button-release-event", |
| 2736 | G_CALLBACK (scroll_bar_button_cb), |
| 2737 | (gpointer) bar); |
| 2738 | |
| 2739 | /* The scroll bar widget does not draw on a window of its own. Instead |
| 2740 | it draws on the parent window, in this case the edit widget. So |
| 2741 | whenever the edit widget is cleared, the scroll bar needs to redraw |
| 2742 | also, which causes flicker. Put an event box between the edit widget |
| 2743 | and the scroll bar, so the scroll bar instead draws itself on the |
| 2744 | event box window. */ |
| 2745 | gtk_fixed_put (GTK_FIXED (f->output_data.x->edit_widget), webox, -1, -1); |
| 2746 | gtk_container_add (GTK_CONTAINER (webox), wscroll); |
| 2747 | |
| 2748 | |
| 2749 | /* Set the cursor to an arrow. */ |
| 2750 | xg_set_cursor (webox, FRAME_X_DISPLAY_INFO (f)->xg_cursor); |
| 2751 | |
| 2752 | SET_SCROLL_BAR_X_WINDOW (bar, scroll_id); |
| 2753 | } |
| 2754 | |
| 2755 | /* Make the scroll bar represented by SCROLLBAR_ID visible. */ |
| 2756 | void |
| 2757 | xg_show_scroll_bar (scrollbar_id) |
| 2758 | int scrollbar_id; |
| 2759 | { |
| 2760 | GtkWidget *w = xg_get_widget_from_map (scrollbar_id); |
| 2761 | if (w) |
| 2762 | gtk_widget_show_all (gtk_widget_get_parent (w)); |
| 2763 | } |
| 2764 | |
| 2765 | /* Remove the scroll bar represented by SCROLLBAR_ID from the frame F. */ |
| 2766 | void |
| 2767 | xg_remove_scroll_bar (f, scrollbar_id) |
| 2768 | FRAME_PTR f; |
| 2769 | int scrollbar_id; |
| 2770 | { |
| 2771 | GtkWidget *w = xg_get_widget_from_map (scrollbar_id); |
| 2772 | if (w) |
| 2773 | { |
| 2774 | GtkWidget *wparent = gtk_widget_get_parent (w); |
| 2775 | gtk_widget_destroy (w); |
| 2776 | gtk_widget_destroy (wparent); |
| 2777 | SET_FRAME_GARBAGED (f); |
| 2778 | } |
| 2779 | } |
| 2780 | |
| 2781 | /* Update the position of the vertical scroll bar represented by SCROLLBAR_ID |
| 2782 | in frame F. |
| 2783 | TOP/LEFT are the new pixel positions where the bar shall appear. |
| 2784 | WIDTH, HEIGHT is the size in pixels the bar shall have. */ |
| 2785 | void |
| 2786 | xg_update_scrollbar_pos (f, scrollbar_id, top, left, width, height) |
| 2787 | FRAME_PTR f; |
| 2788 | int scrollbar_id; |
| 2789 | int top; |
| 2790 | int left; |
| 2791 | int width; |
| 2792 | int height; |
| 2793 | { |
| 2794 | |
| 2795 | GtkWidget *wscroll = xg_get_widget_from_map (scrollbar_id); |
| 2796 | |
| 2797 | if (wscroll) |
| 2798 | { |
| 2799 | GtkWidget *wfixed = f->output_data.x->edit_widget; |
| 2800 | GtkWidget *wparent = gtk_widget_get_parent (wscroll); |
| 2801 | |
| 2802 | /* Move and resize to new values. */ |
| 2803 | gtk_widget_set_size_request (wscroll, width, height); |
| 2804 | gtk_fixed_move (GTK_FIXED (wfixed), wparent, left, top); |
| 2805 | |
| 2806 | SET_FRAME_GARBAGED (f); |
| 2807 | cancel_mouse_face (f); |
| 2808 | } |
| 2809 | } |
| 2810 | |
| 2811 | /* Set the thumb size and position of scroll bar BAR. We are currently |
| 2812 | displaying PORTION out of a whole WHOLE, and our position POSITION. */ |
| 2813 | void |
| 2814 | xg_set_toolkit_scroll_bar_thumb (bar, portion, position, whole) |
| 2815 | struct scroll_bar *bar; |
| 2816 | int portion, position, whole; |
| 2817 | { |
| 2818 | GtkWidget *wscroll = xg_get_widget_from_map (SCROLL_BAR_X_WINDOW (bar)); |
| 2819 | |
| 2820 | FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window))); |
| 2821 | |
| 2822 | if (wscroll && NILP (bar->dragging)) |
| 2823 | { |
| 2824 | GtkAdjustment *adj; |
| 2825 | gdouble shown; |
| 2826 | gdouble top; |
| 2827 | int size, value; |
| 2828 | int new_step; |
| 2829 | int changed = 0; |
| 2830 | |
| 2831 | adj = gtk_range_get_adjustment (GTK_RANGE (wscroll)); |
| 2832 | |
| 2833 | /* We do the same as for MOTIF in xterm.c, assume 30 chars per line |
| 2834 | rather than the real portion value. This makes the thumb less likely |
| 2835 | to resize and that looks better. */ |
| 2836 | portion = WINDOW_TOTAL_LINES (XWINDOW (bar->window)) * 30; |
| 2837 | /* When the thumb is at the bottom, position == whole. |
| 2838 | So we need to increase `whole' to make space for the thumb. */ |
| 2839 | whole += portion; |
| 2840 | |
| 2841 | if (whole <= 0) |
| 2842 | top = 0, shown = 1; |
| 2843 | else |
| 2844 | { |
| 2845 | top = (gdouble) position / whole; |
| 2846 | shown = (gdouble) portion / whole; |
| 2847 | } |
| 2848 | |
| 2849 | size = shown * XG_SB_RANGE; |
| 2850 | size = min (size, XG_SB_RANGE); |
| 2851 | size = max (size, 1); |
| 2852 | |
| 2853 | value = top * XG_SB_RANGE; |
| 2854 | value = min (value, XG_SB_MAX - size); |
| 2855 | value = max (value, XG_SB_MIN); |
| 2856 | |
| 2857 | /* Assume all lines are of equal size. */ |
| 2858 | new_step = size / max (1, FRAME_LINES (f)); |
| 2859 | |
| 2860 | if ((int) adj->page_size != size |
| 2861 | || (int) adj->step_increment != new_step) |
| 2862 | { |
| 2863 | adj->page_size = size; |
| 2864 | adj->step_increment = new_step; |
| 2865 | /* Assume a page increment is about 95% of the page size */ |
| 2866 | adj->page_increment = (int) (0.95*adj->page_size); |
| 2867 | changed = 1; |
| 2868 | } |
| 2869 | |
| 2870 | if (changed || (int) gtk_range_get_value (GTK_RANGE (wscroll)) != value) |
| 2871 | { |
| 2872 | GtkWidget *wfixed = f->output_data.x->edit_widget; |
| 2873 | |
| 2874 | BLOCK_INPUT; |
| 2875 | |
| 2876 | /* gtk_range_set_value invokes the callback. Set |
| 2877 | ignore_gtk_scrollbar to make the callback do nothing */ |
| 2878 | xg_ignore_gtk_scrollbar = 1; |
| 2879 | |
| 2880 | if ((int) gtk_range_get_value (GTK_RANGE (wscroll)) != value) |
| 2881 | gtk_range_set_value (GTK_RANGE (wscroll), (gdouble)value); |
| 2882 | else if (changed) |
| 2883 | gtk_adjustment_changed (adj); |
| 2884 | |
| 2885 | xg_ignore_gtk_scrollbar = 0; |
| 2886 | |
| 2887 | UNBLOCK_INPUT; |
| 2888 | } |
| 2889 | } |
| 2890 | } |
| 2891 | |
| 2892 | \f |
| 2893 | /*********************************************************************** |
| 2894 | Tool bar functions |
| 2895 | ***********************************************************************/ |
| 2896 | /* The key for the data we put in the GtkImage widgets. The data is |
| 2897 | the image used by Emacs. We use this to see if we need to update |
| 2898 | the GtkImage with a new image. */ |
| 2899 | #define XG_TOOL_BAR_IMAGE_DATA "emacs-tool-bar-image" |
| 2900 | |
| 2901 | /* Callback function invoked when a tool bar item is pressed. |
| 2902 | W is the button widget in the tool bar that got pressed, |
| 2903 | CLIENT_DATA is an integer that is the index of the button in the |
| 2904 | tool bar. 0 is the first button. */ |
| 2905 | static void |
| 2906 | xg_tool_bar_callback (w, client_data) |
| 2907 | GtkWidget *w; |
| 2908 | gpointer client_data; |
| 2909 | { |
| 2910 | int idx = (int)client_data; |
| 2911 | FRAME_PTR f = (FRAME_PTR) g_object_get_data (G_OBJECT (w), XG_FRAME_DATA); |
| 2912 | Lisp_Object key, frame; |
| 2913 | struct input_event event; |
| 2914 | EVENT_INIT (event); |
| 2915 | |
| 2916 | if (! f || ! f->n_tool_bar_items || NILP (f->tool_bar_items)) |
| 2917 | return; |
| 2918 | |
| 2919 | idx *= TOOL_BAR_ITEM_NSLOTS; |
| 2920 | |
| 2921 | key = AREF (f->tool_bar_items, idx + TOOL_BAR_ITEM_KEY); |
| 2922 | XSETFRAME (frame, f); |
| 2923 | event.kind = TOOL_BAR_EVENT; |
| 2924 | event.frame_or_window = frame; |
| 2925 | event.arg = frame; |
| 2926 | kbd_buffer_store_event (&event); |
| 2927 | |
| 2928 | event.kind = TOOL_BAR_EVENT; |
| 2929 | event.frame_or_window = frame; |
| 2930 | event.arg = key; |
| 2931 | event.modifiers = 0; /* These are not available. */ |
| 2932 | kbd_buffer_store_event (&event); |
| 2933 | } |
| 2934 | |
| 2935 | /* This callback is called when a tool bar is detached. We must set |
| 2936 | the height of the tool bar to zero when this happens so frame sizes |
| 2937 | are correctly calculated. |
| 2938 | WBOX is the handle box widget that enables detach/attach of the tool bar. |
| 2939 | W is the tool bar widget. |
| 2940 | CLIENT_DATA is a pointer to the frame the tool bar belongs to. */ |
| 2941 | static void |
| 2942 | xg_tool_bar_detach_callback (wbox, w, client_data) |
| 2943 | GtkHandleBox *wbox; |
| 2944 | GtkWidget *w; |
| 2945 | gpointer client_data; |
| 2946 | { |
| 2947 | FRAME_PTR f = (FRAME_PTR) client_data; |
| 2948 | |
| 2949 | if (f) |
| 2950 | { |
| 2951 | /* When detaching a tool bar, not everything dissapear. There are |
| 2952 | a few pixels left that are used to drop the tool bar back into |
| 2953 | place. */ |
| 2954 | int bw = gtk_container_get_border_width (GTK_CONTAINER (wbox)); |
| 2955 | FRAME_TOOLBAR_HEIGHT (f) = 2; |
| 2956 | |
| 2957 | /* The height has changed, resize outer widget and set columns |
| 2958 | rows to what we had before detaching the tool bar. */ |
| 2959 | xg_resize_outer_widget (f, FRAME_COLS (f), FRAME_LINES (f)); |
| 2960 | } |
| 2961 | } |
| 2962 | |
| 2963 | /* This callback is called when a tool bar is reattached. We must set |
| 2964 | the height of the tool bar when this happens so frame sizes |
| 2965 | are correctly calculated. |
| 2966 | WBOX is the handle box widget that enables detach/attach of the tool bar. |
| 2967 | W is the tool bar widget. |
| 2968 | CLIENT_DATA is a pointer to the frame the tool bar belongs to. */ |
| 2969 | static void |
| 2970 | xg_tool_bar_attach_callback (wbox, w, client_data) |
| 2971 | GtkHandleBox *wbox; |
| 2972 | GtkWidget *w; |
| 2973 | gpointer client_data; |
| 2974 | { |
| 2975 | FRAME_PTR f = (FRAME_PTR) client_data; |
| 2976 | |
| 2977 | if (f) |
| 2978 | { |
| 2979 | GtkRequisition req; |
| 2980 | |
| 2981 | gtk_widget_size_request (w, &req); |
| 2982 | FRAME_TOOLBAR_HEIGHT (f) = req.height; |
| 2983 | |
| 2984 | /* The height has changed, resize outer widget and set columns |
| 2985 | rows to what we had before detaching the tool bar. */ |
| 2986 | xg_resize_outer_widget (f, FRAME_COLS (f), FRAME_LINES (f)); |
| 2987 | } |
| 2988 | } |
| 2989 | |
| 2990 | /* This callback is called when the mouse enters or leaves a tool bar item. |
| 2991 | It is used for displaying and hiding the help text. |
| 2992 | W is the tool bar item, a button. |
| 2993 | EVENT is either an enter event or leave event. |
| 2994 | CLIENT_DATA is an integer that is the index of the button in the |
| 2995 | tool bar. 0 is the first button. |
| 2996 | |
| 2997 | Returns FALSE to tell GTK to keep processing this event. */ |
| 2998 | static gboolean |
| 2999 | xg_tool_bar_help_callback (w, event, client_data) |
| 3000 | GtkWidget *w; |
| 3001 | GdkEventCrossing *event; |
| 3002 | gpointer client_data; |
| 3003 | { |
| 3004 | int idx = (int)client_data; |
| 3005 | FRAME_PTR f = (FRAME_PTR) g_object_get_data (G_OBJECT (w), XG_FRAME_DATA); |
| 3006 | Lisp_Object help, frame; |
| 3007 | |
| 3008 | if (! GTK_IS_BUTTON (w)) |
| 3009 | { |
| 3010 | return FALSE; |
| 3011 | } |
| 3012 | |
| 3013 | if (! f || ! f->n_tool_bar_items || NILP (f->tool_bar_items)) |
| 3014 | return FALSE; |
| 3015 | |
| 3016 | if (event->type == GDK_ENTER_NOTIFY) |
| 3017 | { |
| 3018 | idx *= TOOL_BAR_ITEM_NSLOTS; |
| 3019 | help = AREF (f->tool_bar_items, idx + TOOL_BAR_ITEM_HELP); |
| 3020 | |
| 3021 | if (NILP (help)) |
| 3022 | help = AREF (f->tool_bar_items, idx + TOOL_BAR_ITEM_CAPTION); |
| 3023 | } |
| 3024 | else |
| 3025 | help = Qnil; |
| 3026 | |
| 3027 | XSETFRAME (frame, f); |
| 3028 | kbd_buffer_store_help_event (frame, help); |
| 3029 | |
| 3030 | return FALSE; |
| 3031 | } |
| 3032 | |
| 3033 | |
| 3034 | /* This callback is called when a tool bar item shall be redrawn. |
| 3035 | It modifies the expose event so that the GtkImage widget redraws the |
| 3036 | whole image. This to overcome a bug that makes GtkImage draw the image |
| 3037 | in the wrong place when it tries to redraw just a part of the image. |
| 3038 | W is the GtkImage to be redrawn. |
| 3039 | EVENT is the expose event for W. |
| 3040 | CLIENT_DATA is unused. |
| 3041 | |
| 3042 | Returns FALSE to tell GTK to keep processing this event. */ |
| 3043 | static gboolean |
| 3044 | xg_tool_bar_item_expose_callback (w, event, client_data) |
| 3045 | GtkWidget *w; |
| 3046 | GdkEventExpose *event; |
| 3047 | gpointer client_data; |
| 3048 | { |
| 3049 | gint width, height; |
| 3050 | |
| 3051 | gdk_drawable_get_size (event->window, &width, &height); |
| 3052 | |
| 3053 | event->area.x -= width > event->area.width ? width-event->area.width : 0; |
| 3054 | event->area.y -= height > event->area.height ? height-event->area.height : 0; |
| 3055 | |
| 3056 | event->area.x = max (0, event->area.x); |
| 3057 | event->area.y = max (0, event->area.y); |
| 3058 | |
| 3059 | event->area.width = max (width, event->area.width); |
| 3060 | event->area.height = max (height, event->area.height); |
| 3061 | |
| 3062 | return FALSE; |
| 3063 | } |
| 3064 | |
| 3065 | /* This callback is called when a tool bar shall be redrawn. |
| 3066 | We need to update the tool bar from here in case the image cache |
| 3067 | has deleted the pixmaps used in the tool bar. |
| 3068 | W is the GtkToolbar to be redrawn. |
| 3069 | EVENT is the expose event for W. |
| 3070 | CLIENT_DATA is pointing to the frame for this tool bar. |
| 3071 | |
| 3072 | Returns FALSE to tell GTK to keep processing this event. */ |
| 3073 | static gboolean |
| 3074 | xg_tool_bar_expose_callback (w, event, client_data) |
| 3075 | GtkWidget *w; |
| 3076 | GdkEventExpose *event; |
| 3077 | gpointer client_data; |
| 3078 | { |
| 3079 | update_frame_tool_bar ((FRAME_PTR) client_data); |
| 3080 | return FALSE; |
| 3081 | } |
| 3082 | |
| 3083 | static void |
| 3084 | xg_create_tool_bar (f) |
| 3085 | FRAME_PTR f; |
| 3086 | { |
| 3087 | struct x_output *x = f->output_data.x; |
| 3088 | GtkRequisition req; |
| 3089 | int vbox_pos = x->menubar_widget ? 1 : 0; |
| 3090 | |
| 3091 | x->toolbar_widget = gtk_toolbar_new (); |
| 3092 | x->handlebox_widget = gtk_handle_box_new (); |
| 3093 | gtk_container_add (GTK_CONTAINER (x->handlebox_widget), |
| 3094 | x->toolbar_widget); |
| 3095 | |
| 3096 | gtk_box_pack_start (GTK_BOX (x->vbox_widget), x->handlebox_widget, |
| 3097 | FALSE, FALSE, 0); |
| 3098 | |
| 3099 | gtk_box_reorder_child (GTK_BOX (x->vbox_widget), x->handlebox_widget, |
| 3100 | vbox_pos); |
| 3101 | |
| 3102 | gtk_widget_set_name (x->toolbar_widget, "emacs-toolbar"); |
| 3103 | |
| 3104 | /* We only have icons, so override any user setting. We could |
| 3105 | use the caption property of the toolbar item (see update_frame_tool_bar |
| 3106 | below), but some of those strings are long, making the toolbar so |
| 3107 | long it does not fit on the screen. The GtkToolbar widget makes every |
| 3108 | item equal size, so the longest caption determine the size of every |
| 3109 | tool bar item. I think the creators of the GtkToolbar widget |
| 3110 | counted on 4 or 5 character long strings. */ |
| 3111 | gtk_toolbar_set_style (GTK_TOOLBAR (x->toolbar_widget), GTK_TOOLBAR_ICONS); |
| 3112 | gtk_toolbar_set_orientation (GTK_TOOLBAR (x->toolbar_widget), |
| 3113 | GTK_ORIENTATION_HORIZONTAL); |
| 3114 | |
| 3115 | g_signal_connect (G_OBJECT (x->handlebox_widget), "child-detached", |
| 3116 | G_CALLBACK (xg_tool_bar_detach_callback), f); |
| 3117 | g_signal_connect (G_OBJECT (x->handlebox_widget), "child-attached", |
| 3118 | G_CALLBACK (xg_tool_bar_attach_callback), f); |
| 3119 | g_signal_connect (G_OBJECT (x->toolbar_widget), |
| 3120 | "expose-event", |
| 3121 | G_CALLBACK (xg_tool_bar_expose_callback), |
| 3122 | f); |
| 3123 | |
| 3124 | gtk_widget_show_all (x->handlebox_widget); |
| 3125 | |
| 3126 | gtk_widget_size_request (x->toolbar_widget, &req); |
| 3127 | FRAME_TOOLBAR_HEIGHT (f) = req.height; |
| 3128 | |
| 3129 | /* The height has changed, resize outer widget and set columns |
| 3130 | rows to what we had before adding the tool bar. */ |
| 3131 | xg_resize_outer_widget (f, FRAME_COLS (f), FRAME_LINES (f)); |
| 3132 | |
| 3133 | SET_FRAME_GARBAGED (f); |
| 3134 | } |
| 3135 | |
| 3136 | void |
| 3137 | update_frame_tool_bar (f) |
| 3138 | FRAME_PTR f; |
| 3139 | { |
| 3140 | int i; |
| 3141 | GtkRequisition old_req, new_req; |
| 3142 | GList *icon_list; |
| 3143 | GList *iter; |
| 3144 | struct x_output *x = f->output_data.x; |
| 3145 | |
| 3146 | if (! FRAME_GTK_WIDGET (f)) |
| 3147 | return; |
| 3148 | |
| 3149 | BLOCK_INPUT; |
| 3150 | |
| 3151 | if (! x->toolbar_widget) |
| 3152 | xg_create_tool_bar (f); |
| 3153 | |
| 3154 | gtk_widget_size_request (x->toolbar_widget, &old_req); |
| 3155 | |
| 3156 | icon_list = gtk_container_get_children (GTK_CONTAINER (x->toolbar_widget)); |
| 3157 | iter = icon_list; |
| 3158 | |
| 3159 | for (i = 0; i < f->n_tool_bar_items; ++i) |
| 3160 | { |
| 3161 | #define PROP(IDX) AREF (f->tool_bar_items, i * TOOL_BAR_ITEM_NSLOTS + (IDX)) |
| 3162 | |
| 3163 | int enabled_p = !NILP (PROP (TOOL_BAR_ITEM_ENABLED_P)); |
| 3164 | int selected_p = !NILP (PROP (TOOL_BAR_ITEM_SELECTED_P)); |
| 3165 | int idx; |
| 3166 | int img_id; |
| 3167 | struct image *img; |
| 3168 | Lisp_Object image; |
| 3169 | GtkWidget *wicon = iter ? GTK_WIDGET (iter->data) : 0; |
| 3170 | |
| 3171 | if (iter) iter = g_list_next (iter); |
| 3172 | |
| 3173 | /* If image is a vector, choose the image according to the |
| 3174 | button state. */ |
| 3175 | image = PROP (TOOL_BAR_ITEM_IMAGES); |
| 3176 | if (VECTORP (image)) |
| 3177 | { |
| 3178 | if (enabled_p) |
| 3179 | idx = (selected_p |
| 3180 | ? TOOL_BAR_IMAGE_ENABLED_SELECTED |
| 3181 | : TOOL_BAR_IMAGE_ENABLED_DESELECTED); |
| 3182 | else |
| 3183 | idx = (selected_p |
| 3184 | ? TOOL_BAR_IMAGE_DISABLED_SELECTED |
| 3185 | : TOOL_BAR_IMAGE_DISABLED_DESELECTED); |
| 3186 | |
| 3187 | xassert (ASIZE (image) >= idx); |
| 3188 | image = AREF (image, idx); |
| 3189 | } |
| 3190 | else |
| 3191 | idx = -1; |
| 3192 | |
| 3193 | /* Ignore invalid image specifications. */ |
| 3194 | if (!valid_image_p (image)) |
| 3195 | { |
| 3196 | if (wicon) gtk_widget_hide (wicon); |
| 3197 | continue; |
| 3198 | } |
| 3199 | |
| 3200 | img_id = lookup_image (f, image); |
| 3201 | img = IMAGE_FROM_ID (f, img_id); |
| 3202 | prepare_image_for_display (f, img); |
| 3203 | |
| 3204 | if (img->load_failed_p || img->pixmap == None) |
| 3205 | { |
| 3206 | if (wicon) gtk_widget_hide (wicon); |
| 3207 | continue; |
| 3208 | } |
| 3209 | |
| 3210 | if (! wicon) |
| 3211 | { |
| 3212 | GtkWidget *w = xg_get_image_for_pixmap (f, img, x->widget, NULL); |
| 3213 | |
| 3214 | gtk_toolbar_append_item (GTK_TOOLBAR (x->toolbar_widget), |
| 3215 | 0, 0, 0, |
| 3216 | w, |
| 3217 | GTK_SIGNAL_FUNC (xg_tool_bar_callback), |
| 3218 | (gpointer)i); |
| 3219 | |
| 3220 | /* Save the image so we can see if an update is needed when |
| 3221 | this function is called again. */ |
| 3222 | g_object_set_data (G_OBJECT (w), XG_TOOL_BAR_IMAGE_DATA, |
| 3223 | (gpointer)img->pixmap); |
| 3224 | |
| 3225 | /* Catch expose events to overcome an annoying redraw bug, see |
| 3226 | comment for xg_tool_bar_item_expose_callback. */ |
| 3227 | g_signal_connect (G_OBJECT (w), |
| 3228 | "expose-event", |
| 3229 | G_CALLBACK (xg_tool_bar_item_expose_callback), |
| 3230 | 0); |
| 3231 | |
| 3232 | /* We must set sensitive on the button that is the parent |
| 3233 | of the GtkImage parent. Go upwards until we find the button. */ |
| 3234 | while (! GTK_IS_BUTTON (w)) |
| 3235 | w = gtk_widget_get_parent (w); |
| 3236 | |
| 3237 | if (w) |
| 3238 | { |
| 3239 | /* Save the frame in the button so the xg_tool_bar_callback |
| 3240 | can get at it. */ |
| 3241 | g_object_set_data (G_OBJECT (w), XG_FRAME_DATA, (gpointer)f); |
| 3242 | gtk_widget_set_sensitive (w, enabled_p); |
| 3243 | |
| 3244 | /* Use enter/leave notify to show help. We use the events |
| 3245 | rather than the GtkButton specific signals "enter" and |
| 3246 | "leave", so we can have only one callback. The event |
| 3247 | will tell us what kind of event it is. */ |
| 3248 | g_signal_connect (G_OBJECT (w), |
| 3249 | "enter-notify-event", |
| 3250 | G_CALLBACK (xg_tool_bar_help_callback), |
| 3251 | (gpointer)i); |
| 3252 | g_signal_connect (G_OBJECT (w), |
| 3253 | "leave-notify-event", |
| 3254 | G_CALLBACK (xg_tool_bar_help_callback), |
| 3255 | (gpointer)i); |
| 3256 | } |
| 3257 | } |
| 3258 | else |
| 3259 | { |
| 3260 | /* The child of the tool bar is a button. Inside that button |
| 3261 | is a vbox. Inside that vbox is the GtkImage. */ |
| 3262 | GtkWidget *wvbox = gtk_bin_get_child (GTK_BIN (wicon)); |
| 3263 | GList *chlist = gtk_container_get_children (GTK_CONTAINER (wvbox)); |
| 3264 | GtkImage *wimage = GTK_IMAGE (chlist->data); |
| 3265 | Pixmap old_img = (Pixmap)g_object_get_data (G_OBJECT (wimage), |
| 3266 | XG_TOOL_BAR_IMAGE_DATA); |
| 3267 | g_list_free (chlist); |
| 3268 | |
| 3269 | if (old_img != img->pixmap) |
| 3270 | (void) xg_get_image_for_pixmap (f, img, x->widget, wimage); |
| 3271 | |
| 3272 | g_object_set_data (G_OBJECT (wimage), XG_TOOL_BAR_IMAGE_DATA, |
| 3273 | (gpointer)img->pixmap); |
| 3274 | |
| 3275 | gtk_widget_set_sensitive (wicon, enabled_p); |
| 3276 | gtk_widget_show (wicon); |
| 3277 | } |
| 3278 | |
| 3279 | #undef PROP |
| 3280 | } |
| 3281 | |
| 3282 | /* Remove buttons not longer needed. We just hide them so they |
| 3283 | can be reused later on. */ |
| 3284 | while (iter) |
| 3285 | { |
| 3286 | GtkWidget *w = GTK_WIDGET (iter->data); |
| 3287 | gtk_widget_hide (w); |
| 3288 | iter = g_list_next (iter); |
| 3289 | } |
| 3290 | |
| 3291 | gtk_widget_size_request (x->toolbar_widget, &new_req); |
| 3292 | if (old_req.height != new_req.height) |
| 3293 | { |
| 3294 | FRAME_TOOLBAR_HEIGHT (f) = new_req.height; |
| 3295 | xg_resize_outer_widget (f, FRAME_COLS (f), FRAME_LINES (f)); |
| 3296 | } |
| 3297 | |
| 3298 | if (icon_list) g_list_free (icon_list); |
| 3299 | |
| 3300 | UNBLOCK_INPUT; |
| 3301 | } |
| 3302 | |
| 3303 | void |
| 3304 | free_frame_tool_bar (f) |
| 3305 | FRAME_PTR f; |
| 3306 | { |
| 3307 | struct x_output *x = f->output_data.x; |
| 3308 | |
| 3309 | if (x->toolbar_widget) |
| 3310 | { |
| 3311 | BLOCK_INPUT; |
| 3312 | gtk_container_remove (GTK_CONTAINER (x->vbox_widget), |
| 3313 | x->handlebox_widget); |
| 3314 | x->toolbar_widget = 0; |
| 3315 | x->handlebox_widget = 0; |
| 3316 | FRAME_TOOLBAR_HEIGHT (f) = 0; |
| 3317 | |
| 3318 | /* The height has changed, resize outer widget and set columns |
| 3319 | rows to what we had before removing the tool bar. */ |
| 3320 | xg_resize_outer_widget (f, FRAME_COLS (f), FRAME_LINES (f)); |
| 3321 | |
| 3322 | SET_FRAME_GARBAGED (f); |
| 3323 | UNBLOCK_INPUT; |
| 3324 | } |
| 3325 | } |
| 3326 | |
| 3327 | |
| 3328 | \f |
| 3329 | /*********************************************************************** |
| 3330 | Initializing |
| 3331 | ***********************************************************************/ |
| 3332 | void |
| 3333 | xg_initialize () |
| 3334 | { |
| 3335 | xg_ignore_gtk_scrollbar = 0; |
| 3336 | xg_detached_menus = 0; |
| 3337 | xg_menu_cb_list.prev = xg_menu_cb_list.next = |
| 3338 | xg_menu_item_cb_list.prev = xg_menu_item_cb_list.next = 0; |
| 3339 | |
| 3340 | id_to_widget.max_size = id_to_widget.used = 0; |
| 3341 | id_to_widget.widgets = 0; |
| 3342 | |
| 3343 | /* Remove F10 as a menu accelerator, it does not mix well with Emacs key |
| 3344 | bindings. It doesn't seem to be any way to remove properties, |
| 3345 | so we set it to VoidSymbol which in X means "no key". */ |
| 3346 | gtk_settings_set_string_property (gtk_settings_get_default (), |
| 3347 | "gtk-menu-bar-accel", |
| 3348 | "VoidSymbol", |
| 3349 | EMACS_CLASS); |
| 3350 | |
| 3351 | /* Make GTK text input widgets use Emacs style keybindings. This is |
| 3352 | Emacs after all. */ |
| 3353 | gtk_settings_set_string_property (gtk_settings_get_default (), |
| 3354 | "gtk-key-theme-name", |
| 3355 | "Emacs", |
| 3356 | EMACS_CLASS); |
| 3357 | } |
| 3358 | |
| 3359 | #endif /* USE_GTK */ |
| 3360 | |
| 3361 | /* arch-tag: fe7104da-bc1e-4aba-9bd1-f349c528f7e3 |
| 3362 | (do not change this comment) */ |