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Label unlabeled icons in pan/pb config files when adding them.
[rox-filer/dt.git] / ROX-Filer / src / pinboard.c
blob055ef4c53213593a2ed2dea909977a59c02921d3
1 /*
2 * ROX-Filer, filer for the ROX desktop project
3 * Copyright (C) 2006, Thomas Leonard and others (see changelog for details).
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the Free
7 * Software Foundation; either version 2 of the License, or (at your option)
8 * any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along with
16 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
17 * Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20 /* pinboard.c - icons on the desktop background */
21
22 #include "config.h"
23
24 #include <ctype.h>
25 #include <string.h>
26 #include <stdio.h>
27 #include <errno.h>
28 #include <gtk/gtk.h>
29 #include <gdk/gdkx.h>
30 #include <stdlib.h>
31 #include <math.h>
32 #include <libxml/parser.h>
33 #include <signal.h>
34
35 #include "global.h"
36
37 #include "pinboard.h"
38 #include "main.h"
39 #include "dnd.h"
40 #include "pixmaps.h"
41 #include "type.h"
42 #include "choices.h"
43 #include "support.h"
44 #include "gui_support.h"
45 #include "options.h"
46 #include "diritem.h"
47 #include "bind.h"
48 #include "icon.h"
49 #include "run.h"
50 #include "appinfo.h"
51 #include "menu.h"
52 #include "xml.h"
53 #include "tasklist.h"
54 #include "panel.h" /* For panel_mark_used() */
55 #include "wrapped.h"
56 #include "dropbox.h"
57
58 static gboolean tmp_icon_selected = FALSE; /* When dragging */
59
60 static GtkWidget *set_backdrop_dialog = NULL;
61
62 struct _Pinboard {
63 guchar *name; /* Leaf name */
64 GList *icons;
65 GtkStyle *style;
66
67 gchar *backdrop; /* Pathname */
68 BackdropStyle backdrop_style;
69 gint to_backdrop_app; /* pipe FD, or -1 */
70 gint from_backdrop_app; /* pipe FD, or -1 */
71 gint input_tag;
72 GString *input_buffer;
73
74 GtkWidget *window; /* Screen-sized window */
75 GtkWidget *fixed;
76 GdkGC *shadow_gc;
77 };
78
79 #define IS_PIN_ICON(obj) G_TYPE_CHECK_INSTANCE_TYPE((obj), pin_icon_get_type())
80
81 typedef struct _PinIconClass PinIconClass;
82 typedef struct _PinIcon PinIcon;
83
84 struct _PinIconClass {
85 IconClass parent;
86 };
87
88 struct _PinIcon {
89 Icon icon;
90
91 int x, y;
92 GtkWidget *win;
93 GtkWidget *widget; /* The drawing area for the icon */
94 GtkWidget *label;
95 };
96
97 /* The number of pixels between the bottom of the image and the top
98 * of the text.
99 */
100 #define GAP 4
101
102 /* The size of the border around the icon which is used when winking */
103 #define WINK_FRAME 2
104
105 /* Grid sizes */
106 #define GRID_STEP_FINE 2
107 #define GRID_STEP_MED 16
108 #define GRID_STEP_COARSE 32
109
110 /* Used in options */
111 #define CORNER_TOP_LEFT 0
112 #define CORNER_TOP_RIGHT 1
113 #define CORNER_BOTTOM_LEFT 2
114 #define CORNER_BOTTOM_RIGHT 3
115
116 #define DIR_HORZ 0
117 #define DIR_VERT 1
118
119 static PinIcon *current_wink_icon = NULL;
120 static gint wink_timeout;
121
122 /* Used for the text colours (only) in the icons */
123 GdkColor pin_text_fg_col, pin_text_bg_col;
124 PangoFontDescription *pinboard_font = NULL; /* NULL => Gtk default */
125
126 static GdkColor pin_text_shadow_col;
127
128 Pinboard *current_pinboard = NULL;
129 static gint loading_pinboard = 0; /* Non-zero => loading */
130
131 /* The Icon that was used to start the current drag, if any */
132 Icon *pinboard_drag_in_progress = NULL;
133
134 /* For selecting groups of icons */
135 static gboolean lasso_in_progress = FALSE;
136 static int lasso_rect_x1, lasso_rect_x2;
137 static int lasso_rect_y1, lasso_rect_y2;
138
139 /* Tracking icon positions */
140 static GHashTable *placed_icons=NULL;
141
142 Option o_pinboard_tasklist_per_workspace;
143 static Option o_pinboard_clamp_icons, o_pinboard_grid_step;
144 static Option o_pinboard_fg_colour, o_pinboard_bg_colour;
145 static Option o_pinboard_tasklist, o_forward_buttons_13;
146 static Option o_iconify_start, o_iconify_dir;
147 static Option o_label_font, o_pinboard_shadow_colour;
148 static Option o_pinboard_shadow_labels;
149 static Option o_blackbox_hack;
150
151 static Option o_top_margin, o_bottom_margin, o_left_margin, o_right_margin;
152 static Option o_pinboard_image_scaling;
153
154 /* Static prototypes */
155 static GType pin_icon_get_type(void);
156 static void set_size_and_style(PinIcon *pi);
157 static gint draw_icon(GtkWidget *widget, GdkEventExpose *event, PinIcon *pi);
158 static gint end_wink(gpointer data);
159 static gboolean button_release_event(GtkWidget *widget,
160 GdkEventButton *event,
161 PinIcon *pi);
162 static gboolean enter_notify(GtkWidget *widget,
163 GdkEventCrossing *event,
164 PinIcon *pi);
165 static gint leave_notify(GtkWidget *widget,
166 GdkEventCrossing *event,
167 PinIcon *pi);
168 static gboolean button_press_event(GtkWidget *widget,
169 GdkEventButton *event,
170 PinIcon *pi);
171 static gboolean scroll_event(GtkWidget *widget,
172 GdkEventScroll *event);
173 static gint icon_motion_notify(GtkWidget *widget,
174 GdkEventMotion *event,
175 PinIcon *pi);
176 static const char *pin_from_file(gchar *line);
177 static void snap_to_grid(int *x, int *y);
178 static void offset_from_centre(PinIcon *pi, int *x, int *y);
179 static gboolean drag_motion(GtkWidget *widget,
180 GdkDragContext *context,
181 gint x,
182 gint y,
183 guint time,
184 PinIcon *pi);
185 static void drag_set_pinicon_dest(PinIcon *pi);
186 static void drag_leave(GtkWidget *widget,
187 GdkDragContext *context,
188 guint32 time,
189 PinIcon *pi);
190 static gboolean bg_drag_motion(GtkWidget *widget,
191 GdkDragContext *context,
192 gint x,
193 gint y,
194 guint time,
195 gpointer data);
196 static gboolean bg_drag_leave(GtkWidget *widget,
197 GdkDragContext *context,
198 guint32 time,
199 gpointer data);
200 static gboolean bg_expose(GtkWidget *window,
201 GdkEventExpose *event, gpointer data);
202 static void drag_end(GtkWidget *widget,
203 GdkDragContext *context,
204 PinIcon *pi);
205 static void reshape_all(void);
206 static void pinboard_check_options(void);
207 static void pinboard_load_from_xml(xmlDocPtr doc);
208 static void pinboard_clear(void);
209 static void pinboard_save(void);
210 static PinIcon *pin_icon_new(const char *pathname, const char *name);
211 static void pin_icon_destroyed(PinIcon *pi);
212 static void pin_icon_set_tip(PinIcon *pi);
213 static void pinboard_show_menu(GdkEventButton *event, PinIcon *pi);
214 static void create_pinboard_window(Pinboard *pinboard);
215 static void reload_backdrop(Pinboard *pinboard,
216 const gchar *backdrop,
217 BackdropStyle backdrop_style);
218 static void pinboard_reshape_icon(Icon *icon);
219 static gint draw_wink(GtkWidget *widget, GdkEventExpose *event, PinIcon *pi);
220 static void abandon_backdrop_app(Pinboard *pinboard);
221 static void drag_backdrop_dropped(GtkWidget *drop_box,
222 const guchar *path,
223 GtkWidget *dialog);
224 static void backdrop_response(GtkWidget *dialog, gint response, gpointer data);
225 static void find_free_rect(Pinboard *pinboard, GdkRectangle *rect,
226 gboolean old, int start, int direction);
227 static void update_pinboard_font(void);
228 static void draw_lasso(void);
229 static gint lasso_motion(GtkWidget *widget, GdkEventMotion *event, gpointer d);
230 static void clear_backdrop(GtkWidget *drop_box, gpointer data);
231 static void radios_changed(Radios *radios, gpointer data);
232 static void update_radios(GtkWidget *dialog);
233 static void pinboard_set_backdrop_box(void);
234
235 /****************************************************************
236 * EXTERNAL INTERFACE *
237 ****************************************************************/
238
239 void pinboard_init(void)
240 {
241 option_add_string(&o_pinboard_fg_colour, "pinboard_fg_colour", "#fff");
242 option_add_string(&o_pinboard_bg_colour, "pinboard_bg_colour", "#888");
243 option_add_string(&o_pinboard_shadow_colour, "pinboard_shadow_colour",
244 "#000");
245 option_add_string(&o_label_font, "label_font", "");
246 option_add_int(&o_pinboard_shadow_labels, "pinboard_shadow_labels", 1);
247
248 option_add_int(&o_pinboard_clamp_icons, "pinboard_clamp_icons", 1);
249 option_add_int(&o_pinboard_grid_step, "pinboard_grid_step",
250 GRID_STEP_COARSE);
251 option_add_int(&o_pinboard_tasklist, "pinboard_tasklist", TRUE);
252 option_add_int(&o_pinboard_tasklist_per_workspace, "pinboard_tasklist_per_workspace", FALSE);
253 option_add_int(&o_forward_buttons_13, "pinboard_forward_buttons_13",
254 FALSE);
255
256 option_add_int(&o_iconify_start, "iconify_start", CORNER_TOP_RIGHT);
257 option_add_int(&o_iconify_dir, "iconify_dir", DIR_VERT);
258
259 option_add_int(&o_blackbox_hack, "blackbox_hack", FALSE);
260
261 option_add_int(&o_top_margin, "pinboard_top_margin", 0);
262 option_add_int(&o_bottom_margin, "pinboard_bottom_margin", 0);
263 option_add_int(&o_left_margin, "pinboard_left_margin", 0);
264 option_add_int(&o_right_margin, "pinboard_right_margin", 0);
265
266 option_add_int(&o_pinboard_image_scaling, "pinboard_image_scaling", 0);
267
268 option_add_notify(pinboard_check_options);
269
270 gdk_color_parse(o_pinboard_fg_colour.value, &pin_text_fg_col);
271 gdk_color_parse(o_pinboard_bg_colour.value, &pin_text_bg_col);
272 gdk_color_parse(o_pinboard_shadow_colour.value, &pin_text_shadow_col);
273 update_pinboard_font();
274
275 placed_icons=g_hash_table_new(g_str_hash, g_str_equal);
276 }
277
278 /* Load 'pb_<pinboard>' config file from Choices (if it exists)
279 * and make it the current pinboard.
280 * Any existing pinned items are removed. You must call this
281 * at least once before using the pinboard. NULL disables the
282 * pinboard.
283 */
284 void pinboard_activate(const gchar *name)
285 {
286 Pinboard *old_board = current_pinboard;
287 guchar *path, *slash;
288
289 /* Treat an empty name the same as NULL */
290 if (name && !*name)
291 name = NULL;
292
293 if (old_board)
294 pinboard_clear();
295
296 if (!name)
297 {
298 if (number_of_windows < 1 && gtk_main_level() > 0)
299 gtk_main_quit();
300
301 gdk_property_delete(gdk_get_default_root_window(),
302 gdk_atom_intern("_XROOTPMAP_ID", FALSE));
303 return;
304 }
305
306 number_of_windows++;
307
308 slash = strchr(name, '/');
309 if (slash)
310 {
311 if (access(name, F_OK))
312 path = NULL; /* File does not (yet) exist */
313 else
314 path = g_strdup(name);
315 }
316 else
317 {
318 guchar *leaf;
319
320 leaf = g_strconcat("pb_", name, NULL);
321 path = choices_find_xdg_path_load(leaf, PROJECT, SITE);
322 g_free(leaf);
323 }
324
325 current_pinboard = g_new(Pinboard, 1);
326 current_pinboard->name = g_strdup(name);
327 current_pinboard->icons = NULL;
328 current_pinboard->window = NULL;
329 current_pinboard->backdrop = NULL;
330 current_pinboard->backdrop_style = BACKDROP_NONE;
331 current_pinboard->to_backdrop_app = -1;
332 current_pinboard->from_backdrop_app = -1;
333 current_pinboard->input_tag = -1;
334 current_pinboard->input_buffer = NULL;
335
336 create_pinboard_window(current_pinboard);
337
338 loading_pinboard++;
339 if (path)
340 {
341 xmlDocPtr doc;
342 doc = xmlParseFile(path);
343 if (doc)
344 {
345 pinboard_load_from_xml(doc);
346 xmlFreeDoc(doc);
347 reload_backdrop(current_pinboard,
348 current_pinboard->backdrop,
349 current_pinboard->backdrop_style);
350 }
351 else
352 {
353 parse_file(path, pin_from_file);
354 info_message(_("Your old pinboard file has been "
355 "converted to the new XML format."));
356 pinboard_save();
357 }
358 g_free(path);
359 }
360 else
361 pinboard_pin(home_dir, "Home",
362 4 + ICON_WIDTH / 2,
363 4 + ICON_HEIGHT / 2,
364 NULL);
365 loading_pinboard--;
366
367 if (o_pinboard_tasklist.int_value)
368 tasklist_set_active(TRUE);
369 }
370
371 /* Return the window of the current pinboard, or NULL.
372 * Used to make sure lowering the panels doesn't lose them...
373 */
374 GdkWindow *pinboard_get_window(void)
375 {
376 if (current_pinboard)
377 return current_pinboard->window->window;
378 return NULL;
379 }
380
381 const char *pinboard_get_name(void)
382 {
383 g_return_val_if_fail(current_pinboard != NULL, NULL);
384
385 return current_pinboard->name;
386 }
387
388 /* Add widget to the pinboard. Caller is responsible for coping with pinboard
389 * being cleared.
390 */
391 void pinboard_add_widget(GtkWidget *widget, const gchar *name)
392 {
393 GtkRequisition req;
394 GdkRectangle *rect=NULL;
395 gboolean found=FALSE;
396
397 g_return_if_fail(current_pinboard != NULL);
398
399 gtk_fixed_put(GTK_FIXED(current_pinboard->fixed), widget, 0, 0);
400
401 gtk_widget_size_request(widget, &req);
402
403 if(name) {
404 rect=g_hash_table_lookup(placed_icons, name);
405 if(rect)
406 found=TRUE;
407 }
408 /*printf("%s at %p %d\n", name? name: "(nil)", rect, found);*/
409
410 if(rect) {
411 if(rect->width<req.width || rect->height<req.height) {
412 found=FALSE;
413 }
414 } else {
415 rect=g_new(GdkRectangle, 1);
416 rect->width = req.width;
417 rect->height = req.height;
418 }
419 /*printf("%s at %d,%d %d\n", name? name: "(nil)", rect->x,
420 rect->y, found);*/
421 find_free_rect(current_pinboard, rect, found,
422 o_iconify_start.int_value, o_iconify_dir.int_value);
423 /*printf("%s at %d,%d %d\n", name? name: "(nil)", rect->x,
424 rect->y, found);*/
425
426 gtk_fixed_move(GTK_FIXED(current_pinboard->fixed),
427 widget, rect->x, rect->y);
428
429 /* Store the new position (key and value are never freed) */
430 if(name)
431 g_hash_table_insert(placed_icons, g_strdup(name),
432 rect);
433 }
434
435 void pinboard_moved_widget(GtkWidget *widget, const gchar *name,
436 int x, int y)
437 {
438 GdkRectangle *rect;
439
440 if(!name)
441 return;
442 rect=g_hash_table_lookup(placed_icons, name);
443 if(!rect)
444 return;
445
446 rect->x=x;
447 rect->y=y;
448 }
449
450 /* Add a new icon to the background.
451 * 'path' should be an absolute pathname.
452 * 'x' and 'y' are the coordinates of the point in the middle of the text.
453 * If they are negative, the icon is placed automatically.
454 * The values then indicate where they should be added.
455 * x: -1 means left, -2 means right
456 * y: -1 means top, -2 means bottom
457 * 'name' is the name to use. If NULL then the leafname of path is used.
458 * If update is TRUE and there's already an icon for that path, it is updated.
459 */
460 void pinboard_pin_with_args(const gchar *path, const gchar *name,
461 int x, int y, const gchar *shortcut,
462 const gchar *args, gboolean locked, gboolean update)
463 {
464 GtkWidget *align, *vbox;
465 GdkWindow *events;
466 PinIcon *pi;
467 Icon *icon;
468
469 g_return_if_fail(path != NULL);
470 g_return_if_fail(current_pinboard != NULL);
471
472 pi = NULL;
473
474 if (update)
475 {
476 GList *iter;
477
478 for (iter = current_pinboard->icons; iter; iter = iter->next)
479 {
480 icon = (Icon *) iter->data;
481 if (strcmp(icon->path, path) == 0)
482 {
483 pi = (PinIcon *) icon;
484 break;
485 }
486 }
487 if (pi)
488 {
489 if (x < 0)
490 x = pi->x;
491 if (y < 0)
492 y = pi->y;
493 icon_set_path(icon, path, name);
494 goto out; /* The icon is already on the pinboard. */
495 }
496 }
497
498 pi = pin_icon_new(path, name);
499 icon = (Icon *) pi;
500
501 /* This is a bit complicated...
502 *
503 * An icon needs to be a NO_WINDOW widget so that the image can
504 * blend with the background (A ParentRelative window also works, but
505 * is slow, causes the xfree86's memory consumption to grow without
506 * bound, and doesn't even get freed when the filer quits!).
507 *
508 * However, the icon also needs to have a window, so we get events
509 * delivered correctly. The solution is to float an InputOnly window
510 * over the icon. Since GtkButton works the same way, we just use
511 * that :-)
512 */
513
514 /* Button takes the initial ref of Icon */
515 pi->win = gtk_button_new();
516 gtk_container_set_border_width(GTK_CONTAINER(pi->win), WINK_FRAME);
517 g_signal_connect(pi->win, "expose-event", G_CALLBACK(draw_wink), pi);
518 gtk_button_set_relief(GTK_BUTTON(pi->win), GTK_RELIEF_NONE);
519
520 vbox = gtk_vbox_new(FALSE, 0);
521 gtk_container_add(GTK_CONTAINER(pi->win), vbox);
522
523 align = gtk_alignment_new(0.5, 0.5, 0, 0);
524 pi->widget = gtk_hbox_new(FALSE, 0); /* Placeholder */
525 gtk_container_add(GTK_CONTAINER(align), pi->widget);
526
527 gtk_box_pack_start(GTK_BOX(vbox), align, FALSE, TRUE, 0);
528 drag_set_pinicon_dest(pi);
529 g_signal_connect(pi->win, "drag_data_get",
530 G_CALLBACK(drag_data_get), NULL);
531
532 pi->label = wrapped_label_new(icon->item->leafname, 180);
533 gtk_box_pack_start(GTK_BOX(vbox), pi->label, TRUE, TRUE, 0);
534
535 gtk_fixed_put(GTK_FIXED(current_pinboard->fixed), pi->win, 0, 0);
536
537 /* find free space for item if position is not given */
538 if (x < 0 || y < 0)
539 {
540 GtkRequisition req;
541 GdkRectangle rect;
542 int placement = CORNER_TOP_LEFT;
543
544 switch (x)
545 {
546 case -1:
547 if (y == -2)
548 placement = CORNER_BOTTOM_LEFT;
549 break;
550 case -2:
551 switch (y)
552 {
553 case -1:
554 placement = CORNER_TOP_RIGHT;
555 break;
556 case -2:
557 placement = CORNER_BOTTOM_RIGHT;
558 break;
559 }
560 break;
561 }
562
563 pinboard_reshape_icon((Icon *) pi);
564 gtk_widget_size_request(pi->widget, &req);
565 rect.width = req.width;
566 rect.height = req.height;
567 gtk_widget_size_request(pi->label, &req);
568 rect.width = MAX(rect.width, req.width);
569 rect.height += req.height;
570 find_free_rect(current_pinboard, &rect, FALSE, placement, DIR_VERT);
571 x = rect.x + rect.width/2;
572 y = rect.y + rect.height/2;
573 }
574
575 gtk_widget_show_all(pi->win);
576
577 events = GTK_BUTTON(pi->win)->event_window;
578 gdk_window_set_events(events,
579 GDK_EXPOSURE_MASK |
580 GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
581 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
582 GDK_BUTTON1_MOTION_MASK | GDK_BUTTON2_MOTION_MASK |
583 GDK_BUTTON3_MOTION_MASK);
584 g_signal_connect(pi->win, "enter-notify-event",
585 G_CALLBACK(enter_notify), pi);
586 g_signal_connect(pi->win, "leave-notify-event",
587 G_CALLBACK(leave_notify), pi);
588 g_signal_connect(pi->win, "button-press-event",
589 G_CALLBACK(button_press_event), pi);
590 g_signal_connect(pi->win, "button-release-event",
591 G_CALLBACK(button_release_event), pi);
592 g_signal_connect(pi->win, "motion-notify-event",
593 G_CALLBACK(icon_motion_notify), pi);
594 g_signal_connect(pi->win, "expose-event",
595 G_CALLBACK(draw_icon), pi);
596 g_signal_connect_swapped(pi->win, "style-set",
597 G_CALLBACK(pinboard_reshape_icon), pi);
598 g_signal_connect_swapped(pi->win, "destroy",
599 G_CALLBACK(pin_icon_destroyed), pi);
600
601 current_pinboard->icons = g_list_prepend(current_pinboard->icons, pi);
602
603 out:
604 snap_to_grid(&x, &y);
605
606 pi->x = x;
607 pi->y = y;
608
609 pinboard_reshape_icon((Icon *) pi);
610
611 gtk_widget_realize(pi->win);
612
613 pin_icon_set_tip(pi);
614
615 icon_set_shortcut(icon, shortcut);
616 icon_set_arguments(icon, args);
617 icon->locked = locked;
618
619 if (!loading_pinboard)
620 pinboard_save();
621 }
622
623 void pinboard_pin(const gchar *path, const gchar *name, int x, int y,
624 const gchar *shortcut)
625 {
626 pinboard_pin_with_args(path, name, x, y, shortcut, NULL, FALSE, FALSE);
627 }
628
629 /*
630 * Remove an icon from the background. The first icon with a matching
631 * path is removed. If name is not NULL then that also must match
632 */
633 gboolean pinboard_remove(const gchar *path, const gchar *name)
634 {
635 GList *item;
636 PinIcon *pi;
637 Icon *icon;
638
639 g_return_val_if_fail(current_pinboard != NULL, FALSE);
640
641 for(item=current_pinboard->icons; item; item=g_list_next(item)) {
642 pi=(PinIcon *) item->data;
643 icon=(Icon *) pi;
644
645 if(strcmp(icon->path, path)!=0)
646 continue;
647
648 if(name && strcmp(name, icon->item->leafname)!=0)
649 continue;
650
651 icon->locked = FALSE;
652 icon_destroy(icon);
653
654 pinboard_save();
655
656 return TRUE;
657 }
658
659 return FALSE;
660 }
661
662 /* Put a border around the icon, briefly.
663 * If icon is NULL then cancel any existing wink.
664 * The icon will automatically unhighlight unless timeout is FALSE,
665 * in which case you must call this function again (with NULL or another
666 * icon) to remove the highlight.
667 */
668 static void pinboard_wink_item(PinIcon *pi, gboolean timeout)
669 {
670 PinIcon *old = current_wink_icon;
671
672 if (old == pi)
673 return;
674
675 current_wink_icon = pi;
676
677 if (old)
678 {
679 gtk_widget_queue_draw(old->win);
680 gdk_window_process_updates(old->widget->window, TRUE);
681
682 if (wink_timeout != -1)
683 g_source_remove(wink_timeout);
684 }
685
686 if (pi)
687 {
688 gtk_widget_queue_draw(pi->win);
689 gdk_window_process_updates(pi->widget->window, TRUE);
690
691 if (timeout)
692 wink_timeout = g_timeout_add(300, end_wink, NULL);
693 else
694 wink_timeout = -1;
695 }
696 }
697
698 /* 'app' is saved as the new application to set the backdrop. It will then be
699 * run, and should communicate with the filer as described in the manual.
700 */
701 void pinboard_set_backdrop_app(const gchar *app)
702 {
703 XMLwrapper *ai;
704 DirItem *item;
705 gboolean can_set;
706
707 item = diritem_new("");
708 diritem_restat(app, item, NULL);
709 if (!(item->flags & ITEM_FLAG_APPDIR))
710 {
711 delayed_error(_("The backdrop handler must be an application "
712 "directory. Drag an application directory "
713 "into the Set Backdrop dialog box, or (for "
714 "programmers) pass it to the SOAP "
715 "SetBackdropApp method."));
716 diritem_free(item);
717 return;
718 }
719
720 ai = appinfo_get(app, item);
721 diritem_free(item);
722
723 can_set = ai && xml_get_section(ai, ROX_NS, "CanSetBackdrop") != NULL;
724 if (ai)
725 g_object_unref(ai);
726
727 if (can_set)
728 pinboard_set_backdrop(app, BACKDROP_PROGRAM);
729 else
730 delayed_error(_("You can only set the backdrop to an image "
731 "or to a program which knows how to "
732 "manage ROX-Filer's backdrop.\n\n"
733 "Programmers: the application's AppInfo.xml "
734 "must contain the CanSetBackdrop element, as "
735 "described in ROX-Filer's manual."));
736 }
737
738 /* Open a dialog box allowing the user to set the backdrop */
739 static void pinboard_set_backdrop_box(void)
740 {
741 GtkWidget *dialog, *frame, *label, *hbox;
742 GtkBox *vbox;
743 Radios *radios;
744
745 g_return_if_fail(current_pinboard != NULL);
746
747 if (set_backdrop_dialog)
748 gtk_widget_destroy(set_backdrop_dialog);
749
750 dialog = gtk_dialog_new_with_buttons(_("Set backdrop"), NULL,
751 GTK_DIALOG_NO_SEPARATOR,
752 GTK_STOCK_CLOSE, GTK_RESPONSE_OK,
753 NULL);
754 set_backdrop_dialog = dialog;
755 g_signal_connect(dialog, "destroy",
756 G_CALLBACK(gtk_widget_destroyed), &set_backdrop_dialog);
757 vbox = GTK_BOX(GTK_DIALOG(dialog)->vbox);
758
759 gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_MOUSE);
760
761 label = gtk_label_new(_("Choose a style and drag an image in:"));
762 gtk_misc_set_padding(GTK_MISC(label), 4, 0);
763 gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
764 gtk_box_pack_start(vbox, label, TRUE, TRUE, 4);
765
766 /* The Centred, Scaled, Fit, Tiled radios... */
767 hbox = gtk_hbox_new(TRUE, 2);
768 gtk_box_pack_start(vbox, hbox, TRUE, TRUE, 4);
769
770 radios = radios_new(radios_changed, dialog);
771 g_object_set_data(G_OBJECT(dialog), "rox-radios", radios);
772 g_object_set_data(G_OBJECT(dialog), "rox-radios-hbox", hbox);
773
774 radios_add(radios, _("Centre the image without scaling it"),
775 BACKDROP_CENTRE, _("Centre"));
776 radios_add(radios, _("Scale the image to fit the backdrop area, "
777 "without distorting it"),
778 BACKDROP_SCALE, _("Scale"));
779 radios_add(radios, _("Scale the image to fit the backdrop area, "
780 "regardless of image dimensions - overscale"),
781 BACKDROP_FIT, _("Fit"));
782 radios_add(radios, _("Stretch the image to fill the backdrop area"),
783 BACKDROP_STRETCH, _("Stretch"));
784 radios_add(radios, _("Tile the image over the backdrop area"),
785 BACKDROP_TILE, _("Tile"));
786
787 update_radios(dialog);
788
789 /* The drop area... */
790 frame = drop_box_new(_("Drop an image here"));
791 g_object_set_data(G_OBJECT(dialog), "rox-dropbox", frame);
792
793 radios_pack(radios, GTK_BOX(hbox));
794 gtk_box_pack_start(vbox, frame, TRUE, TRUE, 4);
795
796 drop_box_set_path(DROP_BOX(frame), current_pinboard->backdrop);
797
798 g_signal_connect(frame, "path_dropped",
799 G_CALLBACK(drag_backdrop_dropped), dialog);
800 g_signal_connect(frame, "clear",
801 G_CALLBACK(clear_backdrop), dialog);
802
803 g_signal_connect(dialog, "response",
804 G_CALLBACK(backdrop_response), NULL);
805 gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_OK);
806
807 gtk_widget_show_all(dialog);
808 }
809
810 /* Also used by tasklist.c */
811 void draw_label_shadow(WrappedLabel *wl, GdkRegion *region)
812 {
813 GtkWidget *widget;
814 gint x, y;
815
816 if (!o_pinboard_shadow_labels.int_value)
817 return;
818
819 gdk_gc_set_clip_region(current_pinboard->shadow_gc, region);
820
821 widget = GTK_WIDGET(wl);
822
823 y = widget->allocation.y - wl->y_off;
824 x = widget->allocation.x - wl->x_off -
825 ((wl->text_width - widget->allocation.width) >> 1);
826
827 gdk_draw_layout(widget->window, current_pinboard->shadow_gc,
828 x + 1, y + 1, wl->layout);
829
830 if (o_pinboard_shadow_labels.int_value > 1)
831 gdk_draw_layout(widget->window, current_pinboard->shadow_gc,
832 x + 2, y + 2, wl->layout);
833
834 gdk_gc_set_clip_region(current_pinboard->shadow_gc, NULL);
835 }
836
837 /* Set and save (path, style) as the new backdrop.
838 * If style is BACKDROP_PROGRAM, the program is run to get the backdrop.
839 * Otherwise, the image is displayed now.
840 */
841 void pinboard_set_backdrop(const gchar *path, BackdropStyle style)
842 {
843 g_return_if_fail((path == NULL && style == BACKDROP_NONE) ||
844 (path != NULL && style != BACKDROP_NONE));
845
846 if (!current_pinboard)
847 {
848 if (!path)
849 return;
850 pinboard_activate("Default");
851 delayed_error(_("No pinboard was in use... "
852 "the 'Default' pinboard has been selected. "
853 "Use 'rox -p=Default' to turn it on in "
854 "future."));
855 g_return_if_fail(current_pinboard != NULL);
856 }
857
858 /* We might have just run the old backdrop program and now
859 * we're going to set a new one! Seems a bit mean...
860 */
861
862 abandon_backdrop_app(current_pinboard);
863
864 g_free(current_pinboard->backdrop);
865 current_pinboard->backdrop = g_strdup(path);
866 current_pinboard->backdrop_style = style;
867 reload_backdrop(current_pinboard,
868 current_pinboard->backdrop,
869 current_pinboard->backdrop_style);
870
871 pinboard_save();
872
873 if (set_backdrop_dialog)
874 {
875 DropBox *box = g_object_get_data(G_OBJECT(set_backdrop_dialog),
876 "rox-dropbox");
877 g_return_if_fail(box != NULL);
878 drop_box_set_path(box, current_pinboard->backdrop);
879 update_radios(set_backdrop_dialog);
880 }
881 }
882
883 /* Called on xrandr screen resizes */
884 void pinboard_update_size(void)
885 {
886 int width, height;
887
888 if (!current_pinboard)
889 return;
890
891 gtk_window_get_size(GTK_WINDOW(current_pinboard->window),
892 &width, &height);
893
894 /* Only update the pinboard's size if the screen gets bigger,
895 * not smaller. Not sure what to do about icons that end up
896 * offscreen if the screen shrinks, but perhaps a good policy
897 * is to leave them there until the screen size is increased
898 * again rather than mess them around. */
899 width = MAX(width, screen_width);
900 height = MAX(height, screen_height);
901
902 gtk_widget_set_size_request(current_pinboard->window, width, height);
903 }
904
905 /****************************************************************
906 * INTERNAL FUNCTIONS *
907 ****************************************************************/
908
909 static void backdrop_response(GtkWidget *dialog, gint response, gpointer data)
910 {
911 gtk_widget_destroy(dialog);
912 }
913
914 static void clear_backdrop(GtkWidget *drop_box, gpointer data)
915 {
916 pinboard_set_backdrop(NULL, BACKDROP_NONE);
917 }
918
919 static void drag_backdrop_dropped(GtkWidget *drop_box,
920 const guchar *path,
921 GtkWidget *dialog)
922 {
923 struct stat info;
924 Radios *radios;
925
926 radios = g_object_get_data(G_OBJECT(dialog), "rox-radios");
927 g_return_if_fail(radios != NULL);
928
929 if (mc_stat(path, &info))
930 {
931 delayed_error(
932 _("Can't access '%s':\n%s"), path,
933 g_strerror(errno));
934 return;
935 }
936
937 if (S_ISDIR(info.st_mode))
938 {
939 /* Use this program to set the backdrop */
940 pinboard_set_backdrop_app(path);
941 }
942 else if (S_ISREG(info.st_mode))
943 pinboard_set_backdrop(path, radios_get_value(radios));
944 else
945 delayed_error(_("Only files (and certain applications) can be "
946 "used to set the background image."));
947 }
948
949 /* Do this in the idle loop so that we don't try to put an unmanaged
950 * pinboard behind a managed panel (crashes some WMs).
951 */
952 static gboolean recreate_pinboard(gchar *name)
953 {
954 pinboard_activate(name);
955 g_free(name);
956
957 return FALSE;
958 }
959
960 static void pinboard_check_options(void)
961 {
962 GdkColor n_fg, n_bg, n_shadow;
963
964 gdk_color_parse(o_pinboard_fg_colour.value, &n_fg);
965 gdk_color_parse(o_pinboard_bg_colour.value, &n_bg);
966 gdk_color_parse(o_pinboard_shadow_colour.value, &n_shadow);
967
968 if (o_override_redirect.has_changed && current_pinboard)
969 {
970 gchar *name;
971 name = g_strdup(current_pinboard->name);
972 pinboard_activate(NULL);
973 g_idle_add((GtkFunction) recreate_pinboard, name);
974 }
975
976 tasklist_set_active(o_pinboard_tasklist.int_value && current_pinboard);
977
978 if (gdk_color_equal(&n_fg, &pin_text_fg_col) == 0 ||
979 gdk_color_equal(&n_bg, &pin_text_bg_col) == 0 ||
980 gdk_color_equal(&n_shadow, &pin_text_shadow_col) == 0 ||
981 o_pinboard_shadow_labels.has_changed ||
982 o_label_font.has_changed)
983 {
984 pin_text_fg_col = n_fg;
985 pin_text_bg_col = n_bg;
986 pin_text_shadow_col = n_shadow;
987 update_pinboard_font();
988
989 if (current_pinboard)
990 {
991 GtkWidget *w = current_pinboard->window;
992 GdkColormap *cm;
993
994 cm = gtk_widget_get_colormap(w);
995
996 gdk_colormap_alloc_color(cm, &n_bg, FALSE, TRUE);
997 gtk_widget_modify_bg(w, GTK_STATE_NORMAL, &n_bg);
998
999 gdk_gc_set_rgb_fg_color(current_pinboard->shadow_gc,
1000 &n_shadow);
1001
1002 abandon_backdrop_app(current_pinboard);
1003 reload_backdrop(current_pinboard,
1004 current_pinboard->backdrop,
1005 current_pinboard->backdrop_style);
1006
1007 reshape_all();
1008 }
1009
1010 tasklist_style_changed();
1011 }
1012 }
1013
1014 static gint end_wink(gpointer data)
1015 {
1016 pinboard_wink_item(NULL, FALSE);
1017 return FALSE;
1018 }
1019
1020 /* Sets the appearance from the options and updates the size request of
1021 * the image.
1022 */
1023 static void set_size_and_style(PinIcon *pi)
1024 {
1025 Icon *icon = (Icon *) pi;
1026 MaskedPixmap *image = di_image(icon->item);
1027 int iwidth = image->width;
1028 int iheight = image->height;
1029
1030 gtk_widget_modify_fg(pi->label, GTK_STATE_PRELIGHT, &pin_text_fg_col);
1031 gtk_widget_modify_bg(pi->label, GTK_STATE_PRELIGHT, &pin_text_bg_col);
1032 gtk_widget_modify_fg(pi->label, GTK_STATE_NORMAL, &pin_text_fg_col);
1033 gtk_widget_modify_bg(pi->label, GTK_STATE_NORMAL, &pin_text_bg_col);
1034 widget_modify_font(pi->label, pinboard_font);
1035
1036 wrapped_label_set_text(WRAPPED_LABEL(pi->label), icon->item->leafname);
1037
1038 gtk_widget_set_size_request(pi->widget, iwidth, iheight);
1039 }
1040
1041 static gint draw_icon(GtkWidget *widget, GdkEventExpose *event, PinIcon *pi)
1042 {
1043 static GtkWidgetClass *parent_class = NULL;
1044 Icon *icon = (Icon *) pi;
1045 DirItem *item = icon->item;
1046 MaskedPixmap *image = di_image(item);
1047 int iwidth = image->width;
1048 int iheight = image->height;
1049 int x, y;
1050 GdkPixbuf *pixbuf;
1051
1052 if (!parent_class)
1053 {
1054 gpointer c = ((GTypeInstance *) widget)->g_class;
1055 parent_class = (GtkWidgetClass *) g_type_class_peek_parent(c);
1056 }
1057
1058 x = pi->widget->allocation.x;
1059 y = pi->widget->allocation.y;
1060
1061 gdk_gc_set_clip_region(pi->widget->style->black_gc, event->region);
1062
1063 pixbuf = icon->selected
1064 ? create_spotlight_pixbuf(image->pixbuf,
1065 &pi->widget->style->base[GTK_STATE_SELECTED])
1066 : image->pixbuf;
1067
1068 render_pixbuf(pixbuf,
1069 pi->widget->window,
1070 pi->widget->style->black_gc,
1071 x, y, iwidth, iheight);
1072
1073 if (icon->selected)
1074 g_object_unref(pixbuf);
1075
1076 if (item->flags & ITEM_FLAG_SYMLINK)
1077 {
1078 render_pixbuf(im_symlink->pixbuf, pi->widget->window,
1079 pi->widget->style->black_gc,
1080 x, y, -1, -1);
1081 }
1082 else if (item->flags & ITEM_FLAG_MOUNT_POINT)
1083 {
1084 MaskedPixmap *mp = item->flags & ITEM_FLAG_MOUNTED
1085 ? im_mounted
1086 : im_unmounted;
1087
1088 render_pixbuf(mp->pixbuf, pi->widget->window,
1089 pi->widget->style->black_gc,
1090 x, y, -1, -1);
1091 }
1092
1093 gdk_gc_set_clip_region(pi->widget->style->black_gc, NULL);
1094
1095 if (icon->selected)
1096 {
1097 GtkStyle *style = pi->label->style;
1098 GdkGC *gc = style->bg_gc[GTK_STATE_SELECTED];
1099
1100 gdk_gc_set_clip_region(gc, event->region);
1101 gdk_draw_rectangle(pi->label->window, gc, TRUE,
1102 pi->label->allocation.x,
1103 pi->label->allocation.y,
1104 pi->label->allocation.width,
1105 pi->label->allocation.height);
1106 gdk_gc_set_clip_region(gc, NULL);
1107 }
1108 else if (o_pinboard_shadow_labels.int_value)
1109 draw_label_shadow((WrappedLabel *) pi->label, event->region);
1110
1111 /* Draw children */
1112 gdk_gc_set_clip_region(pi->label->style->fg_gc[GTK_STATE_NORMAL],
1113 event->region);
1114 (parent_class->expose_event)(widget, event);
1115 gdk_gc_set_clip_region(pi->label->style->fg_gc[GTK_STATE_NORMAL], NULL);
1116
1117 /* Stop the button effect */
1118 return TRUE;
1119 }
1120
1121 static gint draw_wink(GtkWidget *widget, GdkEventExpose *event, PinIcon *pi)
1122 {
1123 gint x, y, width, height;
1124
1125 if (current_wink_icon != pi)
1126 return FALSE;
1127
1128 x = widget->allocation.x;
1129 y = widget->allocation.y;
1130 width = widget->allocation.width;
1131 height = widget->allocation.height;
1132
1133 gdk_draw_rectangle(widget->window,
1134 pi->widget->style->white_gc,
1135 FALSE,
1136 x, y, width - 1, height - 1);
1137 gdk_draw_rectangle(widget->window,
1138 pi->widget->style->black_gc,
1139 FALSE,
1140 x + 1, y + 1, width - 3, height - 3);
1141
1142 return FALSE;
1143 }
1144
1145 static gboolean enter_notify(GtkWidget *widget,
1146 GdkEventCrossing *event,
1147 PinIcon *pi)
1148 {
1149 icon_may_update((Icon *) pi);
1150 pin_icon_set_tip(pi);
1151 return TRUE;
1152 }
1153
1154 static gint leave_notify(GtkWidget *widget,
1155 GdkEventCrossing *event,
1156 PinIcon *pi)
1157 {
1158 return TRUE;
1159 }
1160
1161 static void select_lasso(void)
1162 {
1163 GList *next;
1164 int minx, miny, maxx, maxy;
1165
1166 g_return_if_fail(lasso_in_progress == TRUE);
1167
1168 minx = MIN(lasso_rect_x1, lasso_rect_x2);
1169 miny = MIN(lasso_rect_y1, lasso_rect_y2);
1170 maxx = MAX(lasso_rect_x1, lasso_rect_x2);
1171 maxy = MAX(lasso_rect_y1, lasso_rect_y2);
1172
1173 for (next = current_pinboard->icons; next; next = next->next)
1174 {
1175 PinIcon *pi = (PinIcon *) next->data;
1176 GtkAllocation *alloc = &pi->win->allocation;
1177 int cx = alloc->x + alloc->width / 2;
1178 int cy = alloc->y + alloc->height / 2;
1179
1180 if (cx > minx && cx < maxx && cy > miny && cy < maxy)
1181 icon_set_selected((Icon *) pi, TRUE);
1182 }
1183 }
1184
1185 static void cancel_lasso(void)
1186 {
1187 draw_lasso();
1188 lasso_in_progress = FALSE;
1189 }
1190
1191 static void pinboard_lasso_box(int start_x, int start_y)
1192 {
1193 if (lasso_in_progress)
1194 cancel_lasso();
1195 lasso_in_progress = TRUE;
1196 lasso_rect_x1 = lasso_rect_x2 = start_x;
1197 lasso_rect_y1 = lasso_rect_y2 = start_y;
1198
1199 draw_lasso();
1200 }
1201
1202 static gint lasso_motion(GtkWidget *widget, GdkEventMotion *event, gpointer d)
1203 {
1204 if (!lasso_in_progress)
1205 return FALSE;
1206
1207 if (lasso_rect_x2 != event->x || lasso_rect_y2 != event->y)
1208 {
1209 draw_lasso();
1210 lasso_rect_x2 = event->x;
1211 lasso_rect_y2 = event->y;
1212 draw_lasso();
1213 }
1214
1215 return FALSE;
1216 }
1217
1218 /* Mark the area of the screen covered by the lasso box for redraw */
1219 static void draw_lasso(void)
1220 {
1221 GdkRectangle area, edge;
1222
1223 if (!lasso_in_progress)
1224 return;
1225
1226 area.x = MIN(lasso_rect_x1, lasso_rect_x2);
1227 area.y = MIN(lasso_rect_y1, lasso_rect_y2);
1228 area.width = ABS(lasso_rect_x1 - lasso_rect_x2);
1229 area.height = ABS(lasso_rect_y1 - lasso_rect_y2);
1230
1231 edge.x = area.x;
1232 edge.y = area.y;
1233 edge.width = area.width;
1234
1235 edge.height = 2; /* Top */
1236 gdk_window_invalidate_rect(current_pinboard->window->window,
1237 &edge, TRUE);
1238
1239 edge.y += area.height - 2; /* Bottom */
1240 gdk_window_invalidate_rect(current_pinboard->window->window,
1241 &edge, TRUE);
1242
1243 edge.y = area.y;
1244 edge.height = area.height;
1245 edge.width = 2; /* Left */
1246 gdk_window_invalidate_rect(current_pinboard->window->window,
1247 &edge, TRUE);
1248
1249 edge.x += area.width - 2; /* Right */
1250 gdk_window_invalidate_rect(current_pinboard->window->window,
1251 &edge, TRUE);
1252 }
1253
1254 static void perform_action(PinIcon *pi, GdkEventButton *event)
1255 {
1256 BindAction action;
1257 Icon *icon = (Icon *) pi;
1258
1259 action = bind_lookup_bev(pi ? BIND_PINBOARD_ICON : BIND_PINBOARD,
1260 event);
1261
1262 /* Actions that can happen with or without an icon */
1263 switch (action)
1264 {
1265 case ACT_LASSO_CLEAR:
1266 icon_select_only(NULL);
1267 /* (no break) */
1268 case ACT_LASSO_MODIFY:
1269 pinboard_lasso_box(event->x, event->y);
1270 return;
1271 case ACT_CLEAR_SELECTION:
1272 icon_select_only(NULL);
1273 return;
1274 case ACT_POPUP_MENU:
1275 dnd_motion_ungrab();
1276 pinboard_show_menu(event, pi);
1277 return;
1278 case ACT_IGNORE:
1279 return;
1280 default:
1281 break;
1282 }
1283
1284 g_return_if_fail(pi != NULL);
1285
1286 switch (action)
1287 {
1288 case ACT_OPEN_ITEM:
1289 dnd_motion_ungrab();
1290 pinboard_wink_item(pi, TRUE);
1291 if (event->type == GDK_2BUTTON_PRESS)
1292 icon_set_selected(icon, FALSE);
1293 icon_run(icon);
1294 break;
1295 case ACT_EDIT_ITEM:
1296 dnd_motion_ungrab();
1297 pinboard_wink_item(pi, TRUE);
1298 if (event->type == GDK_2BUTTON_PRESS)
1299 icon_set_selected(icon, FALSE);
1300 run_diritem(icon->path, icon->item, NULL, NULL, TRUE);
1301 break;
1302 case ACT_PRIME_AND_SELECT:
1303 if (!icon->selected)
1304 icon_select_only(icon);
1305 dnd_motion_start(MOTION_READY_FOR_DND);
1306 break;
1307 case ACT_PRIME_AND_TOGGLE:
1308 icon_set_selected(icon, !icon->selected);
1309 dnd_motion_start(MOTION_READY_FOR_DND);
1310 break;
1311 case ACT_PRIME_FOR_DND:
1312 dnd_motion_start(MOTION_READY_FOR_DND);
1313 break;
1314 case ACT_TOGGLE_SELECTED:
1315 icon_set_selected(icon, !icon->selected);
1316 break;
1317 case ACT_SELECT_EXCL:
1318 icon_select_only(icon);
1319 break;
1320 default:
1321 g_warning("Unsupported action : %d\n", action);
1322 break;
1323 }
1324 }
1325
1326 static void forward_to_root(GdkEventButton *event)
1327 {
1328 XButtonEvent xev;
1329
1330 if (event->type == GDK_BUTTON_PRESS)
1331 {
1332 xev.type = ButtonPress;
1333 if (!o_blackbox_hack.int_value)
1334 XUngrabPointer(gdk_display, event->time);
1335 }
1336 else
1337 xev.type = ButtonRelease;
1338
1339 xev.window = gdk_x11_get_default_root_xwindow();
1340 xev.root = xev.window;
1341 xev.subwindow = None;
1342 xev.time = event->time;
1343 xev.x = event->x_root; /* Needed for icewm */
1344 xev.y = event->y_root;
1345 xev.x_root = event->x_root;
1346 xev.y_root = event->y_root;
1347 xev.state = event->state;
1348 xev.button = event->button;
1349 xev.same_screen = True;
1350
1351 XSendEvent(gdk_display, xev.window, False,
1352 ButtonPressMask | ButtonReleaseMask, (XEvent *) &xev);
1353 }
1354
1355 #define FORWARDED_BUTTON(pi, b) ((b) == 2 || \
1356 (((b) == 3 || (b) == 1) && o_forward_buttons_13.int_value && !pi))
1357
1358 /* pi is NULL if this is a root event */
1359 static gboolean button_release_event(GtkWidget *widget,
1360 GdkEventButton *event,
1361 PinIcon *pi)
1362 {
1363 if (FORWARDED_BUTTON(pi, event->button))
1364 forward_to_root(event);
1365 else if (dnd_motion_release(event))
1366 {
1367 if (motion_buttons_pressed == 0 && lasso_in_progress)
1368 {
1369 select_lasso();
1370 cancel_lasso();
1371 }
1372 return FALSE;
1373 }
1374
1375 perform_action(pi, event);
1376
1377 return TRUE;
1378 }
1379
1380 /* pi is NULL if this is a root event */
1381 static gboolean button_press_event(GtkWidget *widget,
1382 GdkEventButton *event,
1383 PinIcon *pi)
1384 {
1385 /* Just in case we've jumped in front of everything... */
1386 gdk_window_lower(current_pinboard->window->window);
1387
1388 if (FORWARDED_BUTTON(pi, event->button))
1389 forward_to_root(event);
1390 else if (dnd_motion_press(widget, event))
1391 perform_action(pi, event);
1392
1393 return TRUE;
1394 }
1395
1396 /* Forward mouse scroll events as buttons 4 and 5 to the window manager
1397 * (for old window managers that don't catch the buttons themselves)
1398 */
1399 static gboolean scroll_event(GtkWidget *widget, GdkEventScroll *event)
1400 {
1401 XButtonEvent xev;
1402
1403 xev.type = ButtonPress;
1404 xev.window = gdk_x11_get_default_root_xwindow();
1405 xev.root = xev.window;
1406 xev.subwindow = None;
1407 xev.time = event->time;
1408 xev.x = event->x_root; /* Needed for icewm */
1409 xev.y = event->y_root;
1410 xev.x_root = event->x_root;
1411 xev.y_root = event->y_root;
1412 xev.state = event->state;
1413 xev.same_screen = True;
1414
1415 if (event->direction == GDK_SCROLL_UP)
1416 xev.button = 4;
1417 else if (event->direction == GDK_SCROLL_DOWN)
1418 xev.button = 5;
1419 else
1420 return FALSE;
1421
1422 XSendEvent(gdk_display, xev.window, False,
1423 ButtonPressMask, (XEvent *) &xev);
1424
1425 return TRUE;
1426 }
1427
1428 static void start_drag(PinIcon *pi, GdkEventMotion *event)
1429 {
1430 GtkWidget *widget = pi->win;
1431 Icon *icon = (Icon *) pi;
1432
1433 if (!icon->selected)
1434 {
1435 tmp_icon_selected = TRUE;
1436 icon_select_only(icon);
1437 }
1438
1439 g_return_if_fail(icon_selection != NULL);
1440
1441 pinboard_drag_in_progress = icon;
1442
1443 if (icon_selection->next == NULL)
1444 drag_one_item(widget, event, icon->path, icon->item, NULL);
1445 else
1446 {
1447 guchar *uri_list;
1448
1449 uri_list = icon_create_uri_list();
1450 drag_selection(widget, event, uri_list);
1451 g_free(uri_list);
1452 }
1453 }
1454
1455 /* An icon is being dragged around... */
1456 static gint icon_motion_notify(GtkWidget *widget,
1457 GdkEventMotion *event,
1458 PinIcon *pi)
1459 {
1460 if (motion_state == MOTION_READY_FOR_DND)
1461 {
1462 if (dnd_motion_moved(event))
1463 start_drag(pi, event);
1464 return TRUE;
1465 }
1466
1467 return FALSE;
1468 }
1469
1470 static void backdrop_from_xml(xmlNode *node)
1471 {
1472 gchar *style;
1473
1474 g_free(current_pinboard->backdrop);
1475 current_pinboard->backdrop = xmlNodeGetContent(node);
1476
1477 style = xmlGetProp(node, "style");
1478
1479 if (style)
1480 {
1481 current_pinboard->backdrop_style =
1482 g_strcasecmp(style, "Tiled") == 0 ? BACKDROP_TILE :
1483 g_strcasecmp(style, "Scaled") == 0 ? BACKDROP_SCALE :
1484 g_strcasecmp(style, "Fit") == 0 ? BACKDROP_FIT :
1485 g_strcasecmp(style, "Stretched") == 0 ? BACKDROP_STRETCH :
1486 g_strcasecmp(style, "Centred") == 0 ? BACKDROP_CENTRE :
1487 g_strcasecmp(style, "Program") == 0 ? BACKDROP_PROGRAM :
1488 BACKDROP_NONE;
1489 g_free(style);
1490 }
1491 else
1492 current_pinboard->backdrop_style = BACKDROP_TILE;
1493 }
1494
1495 /* Create one pinboard icon for each icon in the doc */
1496 static void pinboard_load_from_xml(xmlDocPtr doc)
1497 {
1498 xmlNodePtr node, root;
1499 char *tmp, *label, *path, *shortcut, *args;
1500 int x, y;
1501 gboolean locked;
1502
1503 root = xmlDocGetRootElement(doc);
1504
1505 for (node = root->xmlChildrenNode; node; node = node->next)
1506 {
1507 if (node->type != XML_ELEMENT_NODE)
1508 continue;
1509 if (strcmp(node->name, "backdrop") == 0)
1510 {
1511 backdrop_from_xml(node);
1512 continue;
1513 }
1514 if (strcmp(node->name, "icon") != 0)
1515 continue;
1516
1517 tmp = xmlGetProp(node, "x");
1518 if (!tmp)
1519 continue;
1520 x = atoi(tmp);
1521 g_free(tmp);
1522
1523 tmp = xmlGetProp(node, "y");
1524 if (!tmp)
1525 continue;
1526 y = atoi(tmp);
1527 g_free(tmp);
1528
1529 label = xmlGetProp(node, "label");
1530 path = xmlNodeGetContent(node);
1531 if (!path)
1532 path = g_strdup("<missing path>");
1533 shortcut = xmlGetProp(node, "shortcut");
1534 args = xmlGetProp(node, "args");
1535
1536 tmp = xmlGetProp(node, "locked");
1537 if (tmp)
1538 {
1539 locked = text_to_boolean(tmp, FALSE);
1540 g_free(tmp);
1541 }
1542 else
1543 locked = FALSE;
1544
1545 pinboard_pin_with_args(path, label, x, y, shortcut, args, locked, FALSE);
1546
1547 g_free(path);
1548 if (label)
1549 g_free(label);
1550 g_free(shortcut);
1551 g_free(args);
1552 }
1553 }
1554
1555 /* Called for each line in the pinboard file while loading a new board.
1556 * Only used for old-format files when converting to XML.
1557 */
1558 static const char *pin_from_file(gchar *line)
1559 {
1560 gchar *leaf = NULL;
1561 int x, y, n;
1562
1563 if (*line == '<')
1564 {
1565 gchar *end;
1566
1567 end = strchr(line + 1, '>');
1568 if (!end)
1569 return _("Missing '>' in icon label");
1570
1571 leaf = g_strndup(line + 1, end - line - 1);
1572
1573 line = end + 1;
1574
1575 while (g_ascii_isspace(*line))
1576 line++;
1577 if (*line != ',')
1578 return _("Missing ',' after icon label");
1579 line++;
1580 }
1581
1582 if (sscanf(line, " %d , %d , %n", &x, &y, &n) < 2)
1583 return NULL; /* Ignore format errors */
1584
1585 pinboard_pin(line + n, leaf, x, y, NULL);
1586
1587 g_free(leaf);
1588
1589 return NULL;
1590 }
1591
1592 /* Write the current state of the pinboard to the current pinboard file */
1593 static void pinboard_save(void)
1594 {
1595 guchar *save = NULL;
1596 guchar *save_new = NULL;
1597 GList *next;
1598 xmlDocPtr doc = NULL;
1599 xmlNodePtr root;
1600
1601 g_return_if_fail(current_pinboard != NULL);
1602
1603 if (strchr(current_pinboard->name, '/'))
1604 save = g_strdup(current_pinboard->name);
1605 else
1606 {
1607 guchar *leaf;
1608
1609 leaf = g_strconcat("pb_", current_pinboard->name, NULL);
1610 save = choices_find_xdg_path_save(leaf, PROJECT, SITE, TRUE);
1611 g_free(leaf);
1612 }
1613
1614 if (!save)
1615 return;
1616
1617 doc = xmlNewDoc("1.0");
1618 xmlDocSetRootElement(doc, xmlNewDocNode(doc, NULL, "pinboard", NULL));
1619
1620 root = xmlDocGetRootElement(doc);
1621
1622 if (current_pinboard->backdrop)
1623 {
1624 BackdropStyle style = current_pinboard->backdrop_style;
1625 xmlNodePtr tree;
1626
1627 tree = xmlNewTextChild(root, NULL, "backdrop",
1628 current_pinboard->backdrop);
1629 xmlSetProp(tree, "style",
1630 style == BACKDROP_TILE ? "Tiled" :
1631 style == BACKDROP_CENTRE ? "Centred" :
1632 style == BACKDROP_SCALE ? "Scaled" :
1633 style == BACKDROP_FIT ? "Fit" :
1634 style == BACKDROP_STRETCH ? "Stretched" :
1635 "Program");
1636 }
1637
1638 for (next = current_pinboard->icons; next; next = next->next)
1639 {
1640 xmlNodePtr tree;
1641 PinIcon *pi = (PinIcon *) next->data;
1642 Icon *icon = (Icon *) pi;
1643 char *tmp;
1644
1645 tree = xmlNewTextChild(root, NULL, "icon", icon->src_path);
1646
1647 tmp = g_strdup_printf("%d", pi->x);
1648 xmlSetProp(tree, "x", tmp);
1649 g_free(tmp);
1650
1651 tmp = g_strdup_printf("%d", pi->y);
1652 xmlSetProp(tree, "y", tmp);
1653 g_free(tmp);
1654
1655 xmlSetProp(tree, "label", icon->item->leafname);
1656 if (icon->shortcut)
1657 xmlSetProp(tree, "shortcut", icon->shortcut);
1658 if (icon->args)
1659 xmlSetProp(tree, "args", icon->args);
1660 if (icon->locked)
1661 xmlSetProp(tree, "locked", "true");
1662 }
1663
1664 save_new = g_strconcat(save, ".new", NULL);
1665 if (save_xml_file(doc, save_new) || rename(save_new, save))
1666 delayed_error(_("Error saving pinboard %s: %s"),
1667 save, g_strerror(errno));
1668 g_free(save_new);
1669
1670 g_free(save);
1671 if (doc)
1672 xmlFreeDoc(doc);
1673 }
1674
1675 static void snap_to_grid(int *x, int *y)
1676 {
1677 int step = o_pinboard_grid_step.int_value;
1678
1679 *x = ((*x + step / 2) / step) * step;
1680 *y = ((*y + step / 2) / step) * step;
1681 }
1682
1683 /* Convert (x,y) from a centre point to a window position */
1684 static void offset_from_centre(PinIcon *pi, int *x, int *y)
1685 {
1686 gboolean clamp = o_pinboard_clamp_icons.int_value;
1687 GtkRequisition req;
1688
1689 gtk_widget_size_request(pi->win, &req);
1690
1691 *x -= req.width >> 1;
1692 *y -= req.height >> 1;
1693 *x = CLAMP(*x, 0, screen_width - (clamp ? req.width : 0));
1694 *y = CLAMP(*y, 0, screen_height - (clamp ? req.height : 0));
1695 }
1696
1697 /* Same as drag_set_dest(), but for pinboard icons */
1698 static void drag_set_pinicon_dest(PinIcon *pi)
1699 {
1700 GtkObject *obj = GTK_OBJECT(pi->win);
1701
1702 make_drop_target(pi->win, 0);
1703
1704 g_signal_connect(obj, "drag_motion", G_CALLBACK(drag_motion), pi);
1705 g_signal_connect(obj, "drag_leave", G_CALLBACK(drag_leave), pi);
1706 g_signal_connect(obj, "drag_end", G_CALLBACK(drag_end), pi);
1707 }
1708
1709 /* Called during the drag when the mouse is in a widget registered
1710 * as a drop target. Returns TRUE if we can accept the drop.
1711 */
1712 static gboolean drag_motion(GtkWidget *widget,
1713 GdkDragContext *context,
1714 gint x,
1715 gint y,
1716 guint time,
1717 PinIcon *pi)
1718 {
1719 GdkDragAction action = context->suggested_action;
1720 const char *type = NULL;
1721 Icon *icon = (Icon *) pi;
1722 DirItem *item = icon->item;
1723
1724 if (gtk_drag_get_source_widget(context) == widget)
1725 {
1726 g_dataset_set_data(context, "drop_dest_type",
1727 (gpointer) drop_dest_pass_through);
1728 return FALSE; /* Can't drag something to itself! */
1729 }
1730
1731 if (icon->selected)
1732 goto out; /* Can't drag a selection to itself */
1733
1734 type = dnd_motion_item(context, &item);
1735
1736 if ((context->actions & GDK_ACTION_ASK) && o_dnd_left_menu.int_value
1737 && type != drop_dest_prog)
1738 {
1739 guint state;
1740 gdk_window_get_pointer(NULL, NULL, NULL, &state);
1741 if (state & GDK_BUTTON1_MASK)
1742 action = GDK_ACTION_ASK;
1743 }
1744
1745 if (!item)
1746 type = NULL;
1747 out:
1748 /* We actually must pretend to accept the drop, even if the
1749 * directory isn't writeable, so that the spring-opening
1750 * thing works.
1751 */
1752
1753 /* Don't allow drops to non-writeable directories */
1754 if (o_dnd_spring_open.int_value == FALSE &&
1755 type == drop_dest_dir &&
1756 access(icon->path, W_OK) != 0)
1757 {
1758 type = NULL;
1759 }
1760
1761 g_dataset_set_data(context, "drop_dest_type", (gpointer) type);
1762 if (type)
1763 {
1764 gdk_drag_status(context, action, time);
1765 g_dataset_set_data_full(context, "drop_dest_path",
1766 g_strdup(icon->path), g_free);
1767 if (type == drop_dest_dir)
1768 dnd_spring_load(context, NULL);
1769
1770 pinboard_wink_item(pi, FALSE);
1771 }
1772 else
1773 gdk_drag_status(context, 0, time);
1774
1775 /* Always return TRUE to stop the pinboard getting the events */
1776 return TRUE;
1777 }
1778
1779 static gboolean pinboard_shadow = FALSE;
1780 static gint shadow_x, shadow_y;
1781 #define SHADOW_SIZE (ICON_WIDTH)
1782
1783 static gboolean bg_expose(GtkWidget *widget,
1784 GdkEventExpose *event, gpointer data)
1785 {
1786 GdkRectangle clipbox;
1787 gpointer gclass = ((GTypeInstance *) widget)->g_class;
1788 gboolean double_buffer;
1789
1790 gdk_gc_set_clip_region(widget->style->white_gc, event->region);
1791 gdk_gc_set_clip_region(widget->style->black_gc, event->region);
1792
1793 gdk_region_get_clipbox(event->region, &clipbox);
1794
1795 double_buffer = (clipbox.width * clipbox.height) < 20000;
1796 if (double_buffer)
1797 gdk_window_begin_paint_region(widget->window, event->region);
1798
1799 /* Clear the area to the background image */
1800 {
1801 GtkStyle *style = current_pinboard->window->style;
1802 GdkGC *gc = style->bg_gc[GTK_STATE_NORMAL];
1803
1804 gdk_gc_set_clip_region(gc, event->region);
1805 if (style->bg_pixmap[GTK_STATE_NORMAL])
1806 {
1807 gdk_gc_set_ts_origin(gc, 0, 0);
1808 gdk_gc_set_fill(gc, GDK_TILED);
1809 gdk_gc_set_tile(gc, style->bg_pixmap[GTK_STATE_NORMAL]);
1810 }
1811
1812 gdk_draw_rectangle(current_pinboard->window->window, gc, TRUE,
1813 clipbox.x, clipbox.y,
1814 clipbox.width, clipbox.height);
1815 if (style->bg_pixmap[GTK_STATE_NORMAL])
1816 gdk_gc_set_fill(gc, GDK_SOLID);
1817
1818 gdk_gc_set_clip_region(gc, NULL);
1819 }
1820
1821 if (pinboard_shadow)
1822 {
1823 gdk_draw_rectangle(widget->window,
1824 widget->style->white_gc, FALSE,
1825 shadow_x, shadow_y,
1826 SHADOW_SIZE, SHADOW_SIZE);
1827 gdk_draw_rectangle(widget->window,
1828 widget->style->black_gc, FALSE,
1829 shadow_x + 1, shadow_y + 1,
1830 SHADOW_SIZE - 2, SHADOW_SIZE - 2);
1831 }
1832
1833 if (lasso_in_progress)
1834 {
1835 GdkRectangle area;
1836
1837 area.x = MIN(lasso_rect_x1, lasso_rect_x2);
1838 area.y = MIN(lasso_rect_y1, lasso_rect_y2);
1839 area.width = ABS(lasso_rect_x1 - lasso_rect_x2);
1840 area.height = ABS(lasso_rect_y1 - lasso_rect_y2);
1841
1842 if (area.width > 4 && area.height > 4)
1843 {
1844 gdk_draw_rectangle(widget->window,
1845 widget->style->white_gc, FALSE,
1846 area.x, area.y,
1847 area.width - 1, area.height - 1);
1848 gdk_draw_rectangle(widget->window,
1849 widget->style->black_gc, FALSE,
1850 area.x + 1, area.y + 1,
1851 area.width - 3, area.height - 3);
1852 }
1853 }
1854
1855 gdk_gc_set_clip_region(widget->style->white_gc, NULL);
1856 gdk_gc_set_clip_region(widget->style->black_gc, NULL);
1857
1858 ((GtkWidgetClass *) gclass)->expose_event(widget, event);
1859
1860 if (double_buffer)
1861 gdk_window_end_paint(widget->window);
1862
1863 return TRUE;
1864 }
1865
1866 /* Draw a 'shadow' under an icon being dragged, showing where
1867 * it will land.
1868 */
1869 static void pinboard_set_shadow(gboolean on)
1870 {
1871 GdkRectangle area;
1872
1873 if (pinboard_shadow)
1874 {
1875 area.x = shadow_x;
1876 area.y = shadow_y;
1877 area.width = SHADOW_SIZE + 1;
1878 area.height = SHADOW_SIZE + 1;
1879
1880 gdk_window_invalidate_rect(current_pinboard->window->window,
1881 &area, TRUE);
1882 }
1883
1884 if (on)
1885 {
1886 int old_x = shadow_x, old_y = shadow_y;
1887
1888 gdk_window_get_pointer(current_pinboard->fixed->window,
1889 &shadow_x, &shadow_y, NULL);
1890 snap_to_grid(&shadow_x, &shadow_y);
1891 shadow_x -= SHADOW_SIZE / 2;
1892 shadow_y -= SHADOW_SIZE / 2;
1893
1894
1895 if (pinboard_shadow && shadow_x == old_x && shadow_y == old_y)
1896 return;
1897
1898 area.x = shadow_x;
1899 area.y = shadow_y;
1900 area.width = SHADOW_SIZE + 1;
1901 area.height = SHADOW_SIZE + 1;
1902
1903 gdk_window_invalidate_rect(current_pinboard->window->window,
1904 &area, TRUE);
1905 }
1906
1907 pinboard_shadow = on;
1908 }
1909
1910 /* Called when dragging some pinboard icons finishes */
1911 void pinboard_move_icons(void)
1912 {
1913 int x = shadow_x, y = shadow_y;
1914 PinIcon *pi = (PinIcon *) pinboard_drag_in_progress;
1915 int width, height;
1916 int dx, dy;
1917 GList *next;
1918
1919 g_return_if_fail(pi != NULL);
1920
1921 x += SHADOW_SIZE / 2;
1922 y += SHADOW_SIZE / 2;
1923 snap_to_grid(&x, &y);
1924
1925 if (pi->x == x && pi->y == y)
1926 return;
1927
1928 /* Find out how much the dragged icon moved (after snapping).
1929 * Move all selected icons by the same amount.
1930 */
1931 dx = x - pi->x;
1932 dy = y - pi->y;
1933
1934 /* Move the other selected icons to keep the same relative
1935 * position.
1936 */
1937 for (next = icon_selection; next; next = next->next)
1938 {
1939 PinIcon *pi = (PinIcon *) next->data;
1940 int nx, ny;
1941
1942 g_return_if_fail(IS_PIN_ICON(pi));
1943
1944 pi->x += dx;
1945 pi->y += dy;
1946 nx = pi->x;
1947 ny = pi->y;
1948
1949 gdk_drawable_get_size(pi->win->window, &width, &height);
1950 offset_from_centre(pi, &nx, &ny);
1951
1952 fixed_move_fast(GTK_FIXED(current_pinboard->fixed),
1953 pi->win, nx, ny);
1954 }
1955
1956 pinboard_save();
1957 }
1958
1959 static void drag_leave(GtkWidget *widget,
1960 GdkDragContext *context,
1961 guint32 time,
1962 PinIcon *pi)
1963 {
1964 pinboard_wink_item(NULL, FALSE);
1965 dnd_spring_abort();
1966 }
1967
1968 static gboolean bg_drag_leave(GtkWidget *widget,
1969 GdkDragContext *context,
1970 guint32 time,
1971 gpointer data)
1972 {
1973 pinboard_set_shadow(FALSE);
1974 return TRUE;
1975 }
1976
1977 static gboolean bg_drag_motion(GtkWidget *widget,
1978 GdkDragContext *context,
1979 gint x,
1980 gint y,
1981 guint time,
1982 gpointer data)
1983 {
1984 /* Dragging from the pinboard to the pinboard is not allowed */
1985
1986 if (!provides(context, text_uri_list))
1987 return FALSE;
1988
1989 pinboard_set_shadow(TRUE);
1990
1991 gdk_drag_status(context,
1992 context->suggested_action == GDK_ACTION_ASK
1993 ? GDK_ACTION_LINK : context->suggested_action,
1994 time);
1995 return TRUE;
1996 }
1997
1998 static void drag_end(GtkWidget *widget,
1999 GdkDragContext *context,
2000 PinIcon *pi)
2001 {
2002 pinboard_drag_in_progress = NULL;
2003 if (tmp_icon_selected)
2004 {
2005 icon_select_only(NULL);
2006 tmp_icon_selected = FALSE;
2007 }
2008 }
2009
2010 /* Something which affects all the icons has changed - reshape
2011 * and redraw all of them.
2012 */
2013 static void reshape_all(void)
2014 {
2015 GList *next;
2016
2017 g_return_if_fail(current_pinboard != NULL);
2018
2019 for (next = current_pinboard->icons; next; next = next->next)
2020 {
2021 Icon *icon = (Icon *) next->data;
2022 pinboard_reshape_icon(icon);
2023 }
2024 }
2025
2026 /* Turns off the pinboard. Does not call gtk_main_quit. */
2027 static void pinboard_clear(void)
2028 {
2029 GList *next;
2030
2031 g_return_if_fail(current_pinboard != NULL);
2032
2033 tasklist_set_active(FALSE);
2034
2035 next = current_pinboard->icons;
2036 while (next)
2037 {
2038 PinIcon *pi = (PinIcon *) next->data;
2039
2040 next = next->next;
2041
2042 gtk_widget_destroy(pi->win);
2043 }
2044
2045 gtk_widget_destroy(current_pinboard->window);
2046
2047 abandon_backdrop_app(current_pinboard);
2048
2049 g_object_unref(current_pinboard->shadow_gc);
2050 current_pinboard->shadow_gc = NULL;
2051
2052 g_free(current_pinboard->name);
2053 null_g_free(&current_pinboard);
2054
2055 number_of_windows--;
2056 }
2057
2058 static gpointer parent_class;
2059
2060 static void pin_icon_destroy(Icon *icon)
2061 {
2062 PinIcon *pi = (PinIcon *) icon;
2063
2064 g_return_if_fail(pi->win != NULL);
2065
2066 gtk_widget_hide(pi->win); /* Stops flicker - stupid GtkFixed! */
2067 gtk_widget_destroy(pi->win);
2068 }
2069
2070 static void pinboard_remove_items(void)
2071 {
2072 g_return_if_fail(icon_selection != NULL);
2073
2074 while (icon_selection)
2075 icon_destroy((Icon *) icon_selection->data);
2076
2077 pinboard_save();
2078 }
2079
2080 static void pin_icon_update(Icon *icon)
2081 {
2082 pinboard_reshape_icon(icon);
2083 pinboard_save();
2084 }
2085
2086 static gboolean pin_icon_same_group(Icon *icon, Icon *other)
2087 {
2088 return IS_PIN_ICON(other);
2089 }
2090
2091 static void pin_wink_icon(Icon *icon)
2092 {
2093 pinboard_wink_item((PinIcon *) icon, TRUE);
2094 }
2095
2096 static void pin_icon_class_init(gpointer gclass, gpointer data)
2097 {
2098 IconClass *icon = (IconClass *) gclass;
2099
2100 parent_class = g_type_class_peek_parent(gclass);
2101
2102 icon->destroy = pin_icon_destroy;
2103 icon->redraw = pinboard_reshape_icon;
2104 icon->update = pin_icon_update;
2105 icon->wink = pin_wink_icon;
2106 icon->remove_items = pinboard_remove_items;
2107 icon->same_group = pin_icon_same_group;
2108 }
2109
2110 static void pin_icon_init(GTypeInstance *object, gpointer gclass)
2111 {
2112 }
2113
2114 static GType pin_icon_get_type(void)
2115 {
2116 static GType type = 0;
2117
2118 if (!type)
2119 {
2120 static const GTypeInfo info =
2121 {
2122 sizeof (PinIconClass),
2123 NULL, /* base_init */
2124 NULL, /* base_finalise */
2125 pin_icon_class_init,
2126 NULL, /* class_finalise */
2127 NULL, /* class_data */
2128 sizeof(PinIcon),
2129 0, /* n_preallocs */
2130 pin_icon_init
2131 };
2132
2133 type = g_type_register_static(icon_get_type(),
2134 "PinIcon", &info, 0);
2135 }
2136
2137 return type;
2138 }
2139
2140 static PinIcon *pin_icon_new(const char *pathname, const char *name)
2141 {
2142 PinIcon *pi;
2143 Icon *icon;
2144
2145 pi = g_object_new(pin_icon_get_type(), NULL);
2146 icon = (Icon *) pi;
2147
2148 icon_set_path(icon, pathname, name);
2149
2150 return pi;
2151 }
2152
2153 /* Called when the window widget is somehow destroyed */
2154 static void pin_icon_destroyed(PinIcon *pi)
2155 {
2156 g_return_if_fail(pi->win != NULL);
2157
2158 pi->win = NULL;
2159
2160 pinboard_wink_item(NULL, FALSE);
2161
2162 if (pinboard_drag_in_progress == (Icon *) pi)
2163 pinboard_drag_in_progress = NULL;
2164
2165 if (current_pinboard)
2166 current_pinboard->icons =
2167 g_list_remove(current_pinboard->icons, pi);
2168
2169 g_object_unref(pi);
2170 }
2171
2172 /* Set the tooltip */
2173 static void pin_icon_set_tip(PinIcon *pi)
2174 {
2175 XMLwrapper *ai;
2176 xmlNode *node;
2177 Icon *icon = (Icon *) pi;
2178
2179 g_return_if_fail(pi != NULL);
2180
2181 ai = appinfo_get(icon->path, icon->item);
2182
2183 if (ai && ((node = xml_get_section(ai, NULL, "Summary"))))
2184 {
2185 guchar *str;
2186 str = xmlNodeListGetString(node->doc,
2187 node->xmlChildrenNode, 1);
2188 if (str)
2189 {
2190 gtk_tooltips_set_tip(tooltips, pi->win, str, NULL);
2191 g_free(str);
2192 }
2193 }
2194 else
2195 gtk_tooltips_set_tip(tooltips, pi->widget, NULL, NULL);
2196
2197 if (ai)
2198 g_object_unref(ai);
2199 }
2200
2201 static void pinboard_show_menu(GdkEventButton *event, PinIcon *pi)
2202 {
2203 GtkWidget *option_item;
2204 int pos[3];
2205 GList *list;
2206
2207 pos[0] = event->x_root;
2208 pos[1] = event->y_root;
2209
2210 option_item = gtk_image_menu_item_new_with_label(_("Backdrop..."));
2211 g_signal_connect(option_item, "activate",
2212 G_CALLBACK(pinboard_set_backdrop_box), NULL);
2213 icon_prepare_menu((Icon *) pi, option_item);
2214
2215 list = gtk_container_get_children(GTK_CONTAINER(icon_menu));
2216 pos[2] = g_list_length(list) - 6;
2217 g_list_free(list);
2218
2219 gtk_menu_popup(GTK_MENU(icon_menu), NULL, NULL,
2220 position_menu,
2221 (gpointer) pos, event->button, event->time);
2222 }
2223
2224 static void create_pinboard_window(Pinboard *pinboard)
2225 {
2226 GtkWidget *win;
2227
2228 g_return_if_fail(pinboard->window == NULL);
2229
2230 win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
2231 gtk_widget_set_style(win, gtk_widget_get_default_style());
2232
2233 gtk_widget_set_double_buffered(win, FALSE);
2234 gtk_widget_set_app_paintable(win, TRUE);
2235 gtk_widget_set_name(win, "rox-pinboard");
2236 pinboard->window = win;
2237 pinboard->fixed = gtk_fixed_new();
2238 gtk_container_add(GTK_CONTAINER(win), pinboard->fixed);
2239
2240 gtk_window_set_wmclass(GTK_WINDOW(win), "ROX-Pinboard", PROJECT);
2241
2242 gtk_widget_set_size_request(win, screen_width, screen_height);
2243 gtk_widget_realize(win);
2244 gtk_window_move(GTK_WINDOW(win), 0, 0);
2245 make_panel_window(win);
2246
2247 /* TODO: Use gdk function when it supports this type */
2248 {
2249 GdkAtom desktop_type;
2250
2251 desktop_type = gdk_atom_intern("_NET_WM_WINDOW_TYPE_DESKTOP",
2252 FALSE);
2253 gdk_property_change(win->window,
2254 gdk_atom_intern("_NET_WM_WINDOW_TYPE", FALSE),
2255 gdk_atom_intern("ATOM", FALSE), 32,
2256 GDK_PROP_MODE_REPLACE, (guchar *) &desktop_type, 1);
2257 }
2258
2259 gtk_widget_add_events(win,
2260 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
2261 GDK_EXPOSURE_MASK |
2262 GDK_BUTTON1_MOTION_MASK |
2263 GDK_BUTTON2_MOTION_MASK | GDK_BUTTON3_MOTION_MASK);
2264 g_signal_connect(win, "button-press-event",
2265 G_CALLBACK(button_press_event), NULL);
2266 g_signal_connect(win, "button-release-event",
2267 G_CALLBACK(button_release_event), NULL);
2268 g_signal_connect(win, "motion-notify-event",
2269 G_CALLBACK(lasso_motion), NULL);
2270 g_signal_connect(pinboard->fixed, "expose_event",
2271 G_CALLBACK(bg_expose), NULL);
2272
2273 /* Some window managers use scroll events on the root to switch
2274 * desktops, but don't cope with our pinboard window, so we forward
2275 * them manually in that case.
2276 */
2277 g_signal_connect(win, "scroll-event", G_CALLBACK(scroll_event), NULL);
2278
2279 /* Drag and drop handlers */
2280 drag_set_pinboard_dest(win);
2281 g_signal_connect(win, "drag_motion", G_CALLBACK(bg_drag_motion), NULL);
2282 g_signal_connect(win, "drag_leave", G_CALLBACK(bg_drag_leave), NULL);
2283
2284 pinboard->shadow_gc = gdk_gc_new(win->window);
2285 gdk_gc_set_rgb_fg_color(pinboard->shadow_gc, &pin_text_shadow_col);
2286
2287 reload_backdrop(current_pinboard, NULL, BACKDROP_NONE);
2288
2289 gtk_widget_show_all(win);
2290 gdk_window_lower(win->window);
2291 }
2292
2293 /* Load image 'path' and scale according to 'style' */
2294 static GdkPixmap *load_backdrop(const gchar *path, BackdropStyle style)
2295 {
2296 GdkPixmap *pixmap;
2297 GdkPixbuf *pixbuf;
2298 GError *error = NULL;
2299
2300 pixbuf = gdk_pixbuf_new_from_file(path, &error);
2301 if (error)
2302 {
2303 delayed_error(_("Error loading backdrop image:\n%s\n"
2304 "Backdrop removed."),
2305 error->message);
2306 g_error_free(error);
2307 pinboard_set_backdrop(NULL, BACKDROP_NONE);
2308 return NULL;
2309 }
2310
2311 if (style == BACKDROP_STRETCH)
2312 {
2313 GdkPixbuf *old = pixbuf;
2314
2315 pixbuf = gdk_pixbuf_scale_simple(old,
2316 screen_width, screen_height,
2317 GDK_INTERP_HYPER);
2318
2319 g_object_unref(old);
2320 }
2321 else if (style == BACKDROP_CENTRE || style == BACKDROP_SCALE || style == BACKDROP_FIT)
2322 {
2323 GdkPixbuf *old = pixbuf;
2324 int x, y, width, height;
2325 float scale;
2326
2327 width = gdk_pixbuf_get_width(pixbuf);
2328 height = gdk_pixbuf_get_height(pixbuf);
2329
2330 if (style == BACKDROP_SCALE)
2331 {
2332 float scale_x, scale_y;
2333 scale_x = screen_width / ((float) width);
2334 scale_y = screen_height / ((float) height);
2335 scale = MIN(scale_x, scale_y);
2336 }
2337 else if (style == BACKDROP_FIT)
2338 {
2339 float scale_x, scale_y;
2340 scale_x = screen_width / ((float) width);
2341 scale_y = screen_height / ((float) height);
2342 scale = MAX(scale_x, scale_y);
2343 }
2344 else
2345 scale = 1;
2346
2347 pixbuf = gdk_pixbuf_new(
2348 gdk_pixbuf_get_colorspace(pixbuf), FALSE,
2349 8, screen_width, screen_height);
2350 gdk_pixbuf_fill(pixbuf, ((pin_text_bg_col.red & 0xff00) << 16) |
2351 ((pin_text_bg_col.green & 0xff00) << 8) |
2352 ((pin_text_bg_col.blue & 0xff00)));
2353
2354 x = (screen_width - width * scale) / 2;
2355 y = (screen_height - height * scale) / 2;
2356 x = MAX(x, 0);
2357 y = MAX(y, 0);
2358
2359 gdk_pixbuf_composite(old, pixbuf,
2360 x, y,
2361 MIN(screen_width, width * scale),
2362 MIN(screen_height, height * scale),
2363 x, y, scale, scale,
2364 o_pinboard_image_scaling.int_value?
2365 GDK_INTERP_BILINEAR: GDK_INTERP_HYPER,
2366 255);
2367 g_object_unref(old);
2368 }
2369
2370 gdk_pixbuf_render_pixmap_and_mask(pixbuf,
2371 &pixmap, NULL, 0);
2372 g_object_unref(pixbuf);
2373
2374 return pixmap;
2375 }
2376
2377 static void abandon_backdrop_app(Pinboard *pinboard)
2378 {
2379 g_return_if_fail(pinboard != NULL);
2380
2381 if (pinboard->to_backdrop_app != -1)
2382 {
2383 close(pinboard->to_backdrop_app);
2384 close(pinboard->from_backdrop_app);
2385 g_source_remove(pinboard->input_tag);
2386 g_string_free(pinboard->input_buffer, TRUE);
2387 pinboard->to_backdrop_app = -1;
2388 pinboard->from_backdrop_app = -1;
2389 pinboard->input_tag = -1;
2390 pinboard->input_buffer = NULL;
2391 }
2392
2393 g_return_if_fail(pinboard->to_backdrop_app == -1);
2394 g_return_if_fail(pinboard->from_backdrop_app == -1);
2395 g_return_if_fail(pinboard->input_tag == -1);
2396 g_return_if_fail(pinboard->input_buffer == NULL);
2397 }
2398
2399 /* A single line has been read from the child.
2400 * Processes the command, and replies 'ok' (or abandons the child on error).
2401 */
2402 static void command_from_backdrop_app(Pinboard *pinboard, const gchar *command)
2403 {
2404 BackdropStyle style;
2405 const char *ok = "ok\n";
2406
2407 if (strncmp(command, "tile ", 5) == 0)
2408 {
2409 style = BACKDROP_TILE;
2410 command += 5;
2411 }
2412 else if (strncmp(command, "scale ", 6) == 0)
2413 {
2414 style = BACKDROP_SCALE;
2415 command += 6;
2416 }
2417 else if (strncmp(command, "fit ", 4) == 0)
2418 {
2419 style = BACKDROP_FIT;
2420 command += 4;
2421 }
2422 else if (strncmp(command, "stretch ", 8) == 0)
2423 {
2424 style = BACKDROP_STRETCH;
2425 command += 8;
2426 }
2427 else if (strncmp(command, "centre ", 7) == 0)
2428 {
2429 style = BACKDROP_CENTRE;
2430 command += 7;
2431 }
2432 else
2433 {
2434 g_warning("Invalid command '%s' from backdrop app\n",
2435 command);
2436 abandon_backdrop_app(pinboard);
2437 return;
2438 }
2439
2440 /* Load the backdrop. May abandon the program if loading fails. */
2441 reload_backdrop(pinboard, command, style);
2442
2443 if (pinboard->to_backdrop_app == -1)
2444 return;
2445
2446 while (*ok)
2447 {
2448 int sent;
2449
2450 sent = write(pinboard->to_backdrop_app, ok, strlen(ok));
2451 if (sent <= 0)
2452 {
2453 /* Remote app quit? Not an error. */
2454 abandon_backdrop_app(pinboard);
2455 break;
2456 }
2457 ok += sent;
2458 }
2459 }
2460
2461 static void backdrop_from_child(Pinboard *pinboard,
2462 int src, GdkInputCondition cond)
2463 {
2464 char buf[256];
2465 int got;
2466
2467 got = read(src, buf, sizeof(buf));
2468
2469 if (got <= 0)
2470 {
2471 if (got < 0)
2472 g_warning("backdrop_from_child: %s\n",
2473 g_strerror(errno));
2474 abandon_backdrop_app(pinboard);
2475 return;
2476 }
2477
2478 g_string_append_len(pinboard->input_buffer, buf, got);
2479
2480 while (pinboard->from_backdrop_app != -1)
2481 {
2482 int len;
2483 char *nl, *command;
2484
2485 nl = strchr(pinboard->input_buffer->str, '\n');
2486 if (!nl)
2487 return; /* Haven't got a whole line yet */
2488
2489 len = nl - pinboard->input_buffer->str;
2490 command = g_strndup(pinboard->input_buffer->str, len);
2491 g_string_erase(pinboard->input_buffer, 0, len + 1);
2492
2493 command_from_backdrop_app(pinboard, command);
2494
2495 g_free(command);
2496 }
2497 }
2498
2499 static void reload_backdrop(Pinboard *pinboard,
2500 const gchar *backdrop,
2501 BackdropStyle backdrop_style)
2502 {
2503 GtkStyle *style;
2504
2505 if (backdrop && backdrop_style == BACKDROP_PROGRAM)
2506 {
2507 const char *argv[] = {NULL, "--backdrop", NULL};
2508 GError *error = NULL;
2509
2510 g_return_if_fail(pinboard->to_backdrop_app == -1);
2511 g_return_if_fail(pinboard->from_backdrop_app == -1);
2512 g_return_if_fail(pinboard->input_tag == -1);
2513 g_return_if_fail(pinboard->input_buffer == NULL);
2514
2515 argv[0] = make_path(backdrop, "AppRun");
2516
2517 /* Run the program. It'll send us a SOAP message and we'll
2518 * get back here with a different style and image.
2519 */
2520
2521 if (g_spawn_async_with_pipes(NULL, (gchar **) argv, NULL,
2522 G_SPAWN_DO_NOT_REAP_CHILD |
2523 G_SPAWN_SEARCH_PATH,
2524 NULL, NULL, /* Child setup fn */
2525 NULL, /* Child PID */
2526 &pinboard->to_backdrop_app,
2527 &pinboard->from_backdrop_app,
2528 NULL, /* Standard error */
2529 &error))
2530 {
2531 pinboard->input_buffer = g_string_new(NULL);
2532 pinboard->input_tag = gdk_input_add_full(
2533 pinboard->from_backdrop_app,
2534 GDK_INPUT_READ,
2535 (GdkInputFunction) backdrop_from_child,
2536 pinboard, NULL);
2537 }
2538 else
2539 {
2540 delayed_error("%s", error ? error->message : "(null)");
2541 g_error_free(error);
2542 }
2543 return;
2544 }
2545
2546 /* Note: Copying a style does not ref the pixmaps! */
2547
2548 style = gtk_style_copy(gtk_widget_get_style(pinboard->window));
2549 style->bg_pixmap[GTK_STATE_NORMAL] = NULL;
2550
2551 if (backdrop)
2552 style->bg_pixmap[GTK_STATE_NORMAL] =
2553 load_backdrop(backdrop, backdrop_style);
2554
2555 gdk_color_parse(o_pinboard_bg_colour.value,
2556 &style->bg[GTK_STATE_NORMAL]);
2557
2558 gtk_widget_set_style(pinboard->window, style);
2559
2560 g_object_unref(style);
2561
2562 gtk_widget_queue_draw(pinboard->window);
2563
2564 /* Also update root window property (for transparent xterms, etc) */
2565 if (style->bg_pixmap[GTK_STATE_NORMAL])
2566 {
2567 XID id = GDK_DRAWABLE_XID(style->bg_pixmap[GTK_STATE_NORMAL]);
2568 gdk_property_change(gdk_get_default_root_window(),
2569 gdk_atom_intern("_XROOTPMAP_ID", FALSE),
2570 gdk_atom_intern("PIXMAP", FALSE),
2571 32, GDK_PROP_MODE_REPLACE,
2572 (guchar *) &id, 1);
2573 }
2574 else
2575 {
2576 gdk_property_delete(gdk_get_default_root_window(),
2577 gdk_atom_intern("_XROOTPMAP_ID", FALSE));
2578 }
2579 }
2580
2581 #define SEARCH_STEP 32
2582
2583 /* Search the area (omin, imin) to (omax, imax) for a free region the size of
2584 * 'rect' that doesn't overlap 'used'. Which of inner and outer is the
2585 * vertical axis depends on the configuration.
2586 *
2587 * id and od give the direction of the search (step size).
2588 *
2589 * Returns the start of the found region in inner/outer, or -1 if there is no
2590 * free space.
2591 */
2592 static void search_free(GdkRectangle *rect, GdkRegion *used,
2593 int *outer, int od, int omin, int omax,
2594 int *inner, int id, int imin, int imax)
2595 {
2596 *outer = od > 0 ? omin : omax;
2597 while (*outer >= omin && *outer <= omax)
2598 {
2599 *inner = id > 0 ? imin : imax;
2600 while (*inner >= imin && *inner <= imax)
2601 {
2602 if (gdk_region_rect_in(used, rect) ==
2603 GDK_OVERLAP_RECTANGLE_OUT)
2604 return;
2605 *inner += id;
2606 }
2607
2608 *outer += od;
2609 }
2610
2611 rect->x = -1;
2612 rect->y = -1;
2613 }
2614
2615 /* Search the width x height area from (x0, y0) for a free region of size
2616 * 'rect'. direction indicates whether to search rows or columns. dx, dy gives
2617 * the direction of the search.
2618 */
2619 static void search_free_area(GdkRectangle *rect, GdkRegion *used,
2620 int direction, int dx, int dy, int x0, int y0, int width, int height)
2621 {
2622 if (direction == DIR_VERT)
2623 {
2624 search_free(rect, used,
2625 &rect->x, dx, x0, width,
2626 &rect->y, dy, y0, height);
2627 }
2628 else
2629 {
2630 search_free(rect, used,
2631 &rect->y, dy, x0, height,
2632 &rect->x, dx, y0, width);
2633 }
2634 }
2635
2636 static gboolean search_free_xinerama(GdkRectangle *rect, GdkRegion *used,
2637 int direction, int dx, int dy, int rwidth, int rheight)
2638 {
2639 GdkRectangle *geom = &monitor_geom[get_monitor_under_pointer()];
2640
2641 search_free_area(rect, used, direction, dx, dy,
2642 geom->x, geom->y, geom->width - rwidth, geom->height - rheight);
2643 return rect->x != -1;
2644 }
2645
2646 /* Finds a free area on the pinboard large enough for the width and height
2647 * of the given rectangle, by filling in the x and y fields of 'rect'.
2648 * If 'old' is true, 'rect' has a previous position and we first check
2649 * if it is viable.
2650 * The search order respects user preferences.
2651 * If no area is free, returns any old area.
2652 */
2653 static void find_free_rect(Pinboard *pinboard, GdkRectangle *rect,
2654 gboolean old, int start, int direction)
2655 {
2656 GdkRegion *used;
2657 GList *next;
2658 GdkRectangle used_rect;
2659 int dx = SEARCH_STEP, dy = SEARCH_STEP;
2660
2661 used = gdk_region_new();
2662
2663 panel_mark_used(used);
2664
2665 /* Subtract the no-go areas... */
2666
2667 if (o_top_margin.int_value > 0)
2668 {
2669 used_rect.x = 0;
2670 used_rect.y = 0;
2671 used_rect.width = gdk_screen_width();
2672 used_rect.height = o_top_margin.int_value;
2673 gdk_region_union_with_rect(used, &used_rect);
2674 }
2675
2676 if (o_bottom_margin.int_value > 0)
2677 {
2678 used_rect.x = 0;
2679 used_rect.y = gdk_screen_height() - o_bottom_margin.int_value;
2680 used_rect.width = gdk_screen_width();
2681 used_rect.height = o_bottom_margin.int_value;
2682 gdk_region_union_with_rect(used, &used_rect);
2683 }
2684
2685 if (o_left_margin.int_value > 0)
2686 {
2687 used_rect.x = 0;
2688 used_rect.y = 0;
2689 used_rect.width = o_left_margin.int_value;
2690 used_rect.height = gdk_screen_height();
2691 gdk_region_union_with_rect(used, &used_rect);
2692 }
2693
2694 if (o_right_margin.int_value > 0)
2695 {
2696 used_rect.x = gdk_screen_width() - o_right_margin.int_value;
2697 used_rect.y = 0;
2698 used_rect.width = o_right_margin.int_value;
2699 used_rect.height = gdk_screen_height();
2700 gdk_region_union_with_rect(used, &used_rect);
2701 }
2702
2703 /* Subtract the used areas... */
2704
2705 next = GTK_FIXED(pinboard->fixed)->children;
2706 for (; next; next = next->next)
2707 {
2708 GtkFixedChild *fix = (GtkFixedChild *) next->data;
2709
2710 if (!GTK_WIDGET_VISIBLE(fix->widget))
2711 continue;
2712
2713 used_rect.x = fix->x;
2714 used_rect.y = fix->y;
2715 used_rect.width = fix->widget->requisition.width;
2716 used_rect.height = fix->widget->requisition.height;
2717
2718 gdk_region_union_with_rect(used, &used_rect);
2719 }
2720
2721 /* Check the previous area */
2722 if(old) {
2723 if(gdk_region_rect_in(used, rect)==GDK_OVERLAP_RECTANGLE_OUT) {
2724 gdk_region_destroy(used);
2725 return;
2726 }
2727 }
2728
2729 /* Find the first free area (yes, this isn't exactly pretty, but
2730 * it works). If you know a better (fast!) algorithm, let me know!
2731 */
2732
2733 if (start == CORNER_TOP_RIGHT ||
2734 start == CORNER_BOTTOM_RIGHT)
2735 dx = -SEARCH_STEP;
2736
2737 if (start == CORNER_BOTTOM_LEFT ||
2738 start == CORNER_BOTTOM_RIGHT)
2739 dy = -SEARCH_STEP;
2740
2741 /* If pinboard covers more than one monitor, try to find free space on
2742 * monitor under pointer first, then whole screen if that fails */
2743 if (n_monitors == 1 || !search_free_xinerama(rect, used,
2744 direction, dx, dy, rect->width, rect->height))
2745 {
2746 search_free_area(rect, used, direction, dx, dy,
2747 0, 0, screen_width - rect->width, screen_height - rect->height);
2748 }
2749
2750 gdk_region_destroy(used);
2751
2752 if (rect->x == -1)
2753 {
2754 rect->x = 0;
2755 rect->y = 0;
2756 }
2757 }
2758
2759 /* Icon's size, shape or appearance has changed - update the display */
2760 static void pinboard_reshape_icon(Icon *icon)
2761 {
2762 PinIcon *pi = (PinIcon *) icon;
2763 int x = pi->x, y = pi->y;
2764
2765 set_size_and_style(pi);
2766 offset_from_centre(pi, &x, &y);
2767
2768 if (pi->win->allocation.x != x || pi->win->allocation.y != y)
2769 {
2770 fixed_move_fast(GTK_FIXED(current_pinboard->fixed),
2771 pi->win, x, y);
2772 }
2773
2774 /* Newer versions of GTK seem to need this, or the icon doesn't
2775 * get redrawn.
2776 */
2777 gtk_widget_queue_draw(pi->win);
2778 }
2779
2780 /* Sets the pinboard_font global from the option. Doesn't do anything else. */
2781 static void update_pinboard_font(void)
2782 {
2783 if (pinboard_font)
2784 pango_font_description_free(pinboard_font);
2785 pinboard_font = o_label_font.value[0] != '\0'
2786 ? pango_font_description_from_string(o_label_font.value)
2787 : NULL;
2788 }
2789
2790 static void radios_changed(Radios *radios, gpointer data)
2791 {
2792 GObject *dialog = G_OBJECT(data);
2793 DropBox *drop_box;
2794 const guchar *path;
2795
2796 g_return_if_fail(dialog != NULL);
2797
2798 drop_box = g_object_get_data(G_OBJECT(dialog), "rox-dropbox");
2799
2800 g_return_if_fail(radios != NULL);
2801 g_return_if_fail(drop_box != NULL);
2802 g_return_if_fail(current_pinboard != NULL);
2803
2804 if (current_pinboard->backdrop_style != BACKDROP_PROGRAM)
2805 {
2806 path = drop_box_get_path(drop_box);
2807 if (path)
2808 pinboard_set_backdrop(path, radios_get_value(radios));
2809 }
2810 }
2811
2812 static void update_radios(GtkWidget *dialog)
2813 {
2814 Radios *radios;
2815 GtkWidget *hbox;
2816
2817 g_return_if_fail(dialog != NULL);
2818
2819 radios = g_object_get_data(G_OBJECT(dialog), "rox-radios");
2820 hbox = g_object_get_data(G_OBJECT(dialog), "rox-radios-hbox");
2821
2822 g_return_if_fail(current_pinboard != NULL);
2823 g_return_if_fail(radios != NULL);
2824 g_return_if_fail(hbox != NULL);
2825
2826 switch (current_pinboard->backdrop_style)
2827 {
2828 case BACKDROP_TILE:
2829 case BACKDROP_STRETCH:
2830 case BACKDROP_SCALE:
2831 case BACKDROP_CENTRE:
2832 case BACKDROP_FIT:
2833 radios_set_value(radios,
2834 current_pinboard->backdrop_style);
2835 gtk_widget_set_sensitive(hbox, TRUE);
2836 break;
2837 default:
2838 gtk_widget_set_sensitive(hbox, FALSE);
2839 radios_set_value(radios, BACKDROP_TILE);
2840 break;
2841 }
2842 }