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r4523: Updated headers:
[rox-filer/dt.git] / ROX-Filer / src / pinboard.c
blobcc548de3a51f2eb1f4f2383fd5cd7e35a95168bc
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);
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 /*printf("%s at %d,%d %d\n", name? name: "(nil)", rect->x,
423 rect->y, found);*/
424
425 gtk_fixed_move(GTK_FIXED(current_pinboard->fixed),
426 widget, rect->x, rect->y);
427
428 /* Store the new position (key and value are never freed) */
429 if(name)
430 g_hash_table_insert(placed_icons, g_strdup(name),
431 rect);
432 }
433
434 void pinboard_moved_widget(GtkWidget *widget, const gchar *name,
435 int x, int y)
436 {
437 GdkRectangle *rect;
438
439 if(!name)
440 return;
441 rect=g_hash_table_lookup(placed_icons, name);
442 if(!rect)
443 return;
444
445 rect->x=x;
446 rect->y=y;
447 }
448
449 /* Add a new icon to the background.
450 * 'path' should be an absolute pathname.
451 * 'x' and 'y' are the coordinates of the point in the middle of the text.
452 * 'name' is the name to use. If NULL then the leafname of path is used.
453 */
454 void pinboard_pin_with_args(const gchar *path, const gchar *name,
455 int x, int y, const gchar *shortcut,
456 const gchar *args)
457 {
458 GtkWidget *align, *vbox;
459 GdkWindow *events;
460 PinIcon *pi;
461 Icon *icon;
462
463 g_return_if_fail(path != NULL);
464 g_return_if_fail(current_pinboard != NULL);
465
466 pi = pin_icon_new(path, name);
467 icon = (Icon *) pi;
468 pi->x = x;
469 pi->y = y;
470
471 /* This is a bit complicated...
472 *
473 * An icon needs to be a NO_WINDOW widget so that the image can
474 * blend with the background (A ParentRelative window also works, but
475 * is slow, causes the xfree86's memory consumption to grow without
476 * bound, and doesn't even get freed when the filer quits!).
477 *
478 * However, the icon also needs to have a window, so we get events
479 * delivered correctly. The solution is to float an InputOnly window
480 * over the icon. Since GtkButton works the same way, we just use
481 * that :-)
482 */
483
484 /* Button takes the initial ref of Icon */
485 pi->win = gtk_button_new();
486 gtk_container_set_border_width(GTK_CONTAINER(pi->win), WINK_FRAME);
487 g_signal_connect(pi->win, "expose-event", G_CALLBACK(draw_wink), pi);
488 gtk_button_set_relief(GTK_BUTTON(pi->win), GTK_RELIEF_NONE);
489
490 vbox = gtk_vbox_new(FALSE, 0);
491 gtk_container_add(GTK_CONTAINER(pi->win), vbox);
492
493 align = gtk_alignment_new(0.5, 0.5, 0, 0);
494 pi->widget = gtk_hbox_new(FALSE, 0); /* Placeholder */
495 gtk_container_add(GTK_CONTAINER(align), pi->widget);
496
497 gtk_box_pack_start(GTK_BOX(vbox), align, FALSE, TRUE, 0);
498 drag_set_pinicon_dest(pi);
499 g_signal_connect(pi->win, "drag_data_get",
500 G_CALLBACK(drag_data_get), NULL);
501
502 pi->label = wrapped_label_new(icon->item->leafname, 180);
503 gtk_box_pack_start(GTK_BOX(vbox), pi->label, TRUE, TRUE, 0);
504
505 gtk_fixed_put(GTK_FIXED(current_pinboard->fixed), pi->win, 0, 0);
506
507 snap_to_grid(&x, &y);
508 pi->x = x;
509 pi->y = y;
510 gtk_widget_show_all(pi->win);
511 pinboard_reshape_icon((Icon *) pi);
512
513 gtk_widget_realize(pi->win);
514 events = GTK_BUTTON(pi->win)->event_window;
515 gdk_window_set_events(events,
516 GDK_EXPOSURE_MASK |
517 GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
518 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
519 GDK_BUTTON1_MOTION_MASK | GDK_BUTTON2_MOTION_MASK |
520 GDK_BUTTON3_MOTION_MASK);
521 g_signal_connect(pi->win, "enter-notify-event",
522 G_CALLBACK(enter_notify), pi);
523 g_signal_connect(pi->win, "leave-notify-event",
524 G_CALLBACK(leave_notify), pi);
525 g_signal_connect(pi->win, "button-press-event",
526 G_CALLBACK(button_press_event), pi);
527 g_signal_connect(pi->win, "button-release-event",
528 G_CALLBACK(button_release_event), pi);
529 g_signal_connect(pi->win, "motion-notify-event",
530 G_CALLBACK(icon_motion_notify), pi);
531 g_signal_connect(pi->win, "expose-event",
532 G_CALLBACK(draw_icon), pi);
533 g_signal_connect_swapped(pi->win, "style-set",
534 G_CALLBACK(pinboard_reshape_icon), pi);
535 g_signal_connect_swapped(pi->win, "destroy",
536 G_CALLBACK(pin_icon_destroyed), pi);
537
538 current_pinboard->icons = g_list_prepend(current_pinboard->icons, pi);
539 pin_icon_set_tip(pi);
540
541 icon_set_shortcut(icon, shortcut);
542 icon_set_arguments(icon, args);
543
544 if (!loading_pinboard)
545 pinboard_save();
546 }
547
548 void pinboard_pin(const gchar *path, const gchar *name, int x, int y,
549 const gchar *shortcut)
550 {
551 pinboard_pin_with_args(path, name, x, y, shortcut, NULL);
552 }
553
554 /*
555 * Remove an icon from the background. The first icon with a matching
556 * path is removed. If name is not NULL then that also must match
557 */
558 gboolean pinboard_remove(const gchar *path, const gchar *name)
559 {
560 GList *item;
561 PinIcon *pi;
562 Icon *icon;
563
564 g_return_val_if_fail(current_pinboard != NULL, FALSE);
565
566 for(item=current_pinboard->icons; item; item=g_list_next(item)) {
567 pi=(PinIcon *) item->data;
568 icon=(Icon *) pi;
569
570 if(strcmp(icon->path, path)!=0)
571 continue;
572
573 if(name && strcmp(name, icon->item->leafname)!=0)
574 continue;
575
576 icon_destroy(icon);
577
578 pinboard_save();
579
580 return TRUE;
581 }
582
583 return FALSE;
584 }
585
586 /* Put a border around the icon, briefly.
587 * If icon is NULL then cancel any existing wink.
588 * The icon will automatically unhighlight unless timeout is FALSE,
589 * in which case you must call this function again (with NULL or another
590 * icon) to remove the highlight.
591 */
592 static void pinboard_wink_item(PinIcon *pi, gboolean timeout)
593 {
594 PinIcon *old = current_wink_icon;
595
596 if (old == pi)
597 return;
598
599 current_wink_icon = pi;
600
601 if (old)
602 {
603 gtk_widget_queue_draw(old->win);
604 gdk_window_process_updates(old->widget->window, TRUE);
605
606 if (wink_timeout != -1)
607 g_source_remove(wink_timeout);
608 }
609
610 if (pi)
611 {
612 gtk_widget_queue_draw(pi->win);
613 gdk_window_process_updates(pi->widget->window, TRUE);
614
615 if (timeout)
616 wink_timeout = g_timeout_add(300, end_wink, NULL);
617 else
618 wink_timeout = -1;
619 }
620 }
621
622 /* 'app' is saved as the new application to set the backdrop. It will then be
623 * run, and should communicate with the filer as described in the manual.
624 */
625 void pinboard_set_backdrop_app(const gchar *app)
626 {
627 XMLwrapper *ai;
628 DirItem *item;
629 gboolean can_set;
630
631 item = diritem_new("");
632 diritem_restat(app, item, NULL);
633 if (!(item->flags & ITEM_FLAG_APPDIR))
634 {
635 delayed_error(_("The backdrop handler must be an application "
636 "directory. Drag an application directory "
637 "into the Set Backdrop dialog box, or (for "
638 "programmers) pass it to the SOAP "
639 "SetBackdropApp method."));
640 diritem_free(item);
641 return;
642 }
643
644 ai = appinfo_get(app, item);
645 diritem_free(item);
646
647 can_set = ai && xml_get_section(ai, ROX_NS, "CanSetBackdrop") != NULL;
648 if (ai)
649 g_object_unref(ai);
650
651 if (can_set)
652 pinboard_set_backdrop(app, BACKDROP_PROGRAM);
653 else
654 delayed_error(_("You can only set the backdrop to an image "
655 "or to a program which knows how to "
656 "manage ROX-Filer's backdrop.\n\n"
657 "Programmers: the application's AppInfo.xml "
658 "must contain the CanSetBackdrop element, as "
659 "described in ROX-Filer's manual."));
660 }
661
662 /* Open a dialog box allowing the user to set the backdrop */
663 static void pinboard_set_backdrop_box(void)
664 {
665 GtkWidget *dialog, *frame, *label, *hbox;
666 GtkBox *vbox;
667 Radios *radios;
668
669 g_return_if_fail(current_pinboard != NULL);
670
671 if (set_backdrop_dialog)
672 gtk_widget_destroy(set_backdrop_dialog);
673
674 dialog = gtk_dialog_new_with_buttons(_("Set backdrop"), NULL,
675 GTK_DIALOG_NO_SEPARATOR,
676 GTK_STOCK_CLOSE, GTK_RESPONSE_OK,
677 NULL);
678 set_backdrop_dialog = dialog;
679 g_signal_connect(dialog, "destroy",
680 G_CALLBACK(gtk_widget_destroyed), &set_backdrop_dialog);
681 vbox = GTK_BOX(GTK_DIALOG(dialog)->vbox);
682
683 gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_MOUSE);
684
685 label = gtk_label_new(_("Choose a style and drag an image in:"));
686 gtk_misc_set_padding(GTK_MISC(label), 4, 0);
687 gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
688 gtk_box_pack_start(vbox, label, TRUE, TRUE, 4);
689
690 /* The Centred, Scaled, Tiled radios... */
691 hbox = gtk_hbox_new(TRUE, 2);
692 gtk_box_pack_start(vbox, hbox, TRUE, TRUE, 4);
693
694 radios = radios_new(radios_changed, dialog);
695 g_object_set_data(G_OBJECT(dialog), "rox-radios", radios);
696 g_object_set_data(G_OBJECT(dialog), "rox-radios-hbox", hbox);
697
698 radios_add(radios, _("Centre the image without scaling it"),
699 BACKDROP_CENTRE, _("Centre"));
700 radios_add(radios, _("Scale the image to fit the backdrop area, "
701 "without distorting it"),
702 BACKDROP_SCALE, _("Scale"));
703 radios_add(radios, _("Stretch the image to fill the backdrop area"),
704 BACKDROP_STRETCH, _("Stretch"));
705 radios_add(radios, _("Tile the image over the backdrop area"),
706 BACKDROP_TILE, _("Tile"));
707
708 update_radios(dialog);
709
710 /* The drop area... */
711 frame = drop_box_new(_("Drop an image here"));
712 g_object_set_data(G_OBJECT(dialog), "rox-dropbox", frame);
713
714 radios_pack(radios, GTK_BOX(hbox));
715 gtk_box_pack_start(vbox, frame, TRUE, TRUE, 4);
716
717 drop_box_set_path(DROP_BOX(frame), current_pinboard->backdrop);
718
719 g_signal_connect(frame, "path_dropped",
720 G_CALLBACK(drag_backdrop_dropped), dialog);
721 g_signal_connect(frame, "clear",
722 G_CALLBACK(clear_backdrop), dialog);
723
724 g_signal_connect(dialog, "response",
725 G_CALLBACK(backdrop_response), NULL);
726 gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_OK);
727
728 gtk_widget_show_all(dialog);
729 }
730
731 /* Also used by tasklist.c */
732 void draw_label_shadow(WrappedLabel *wl, GdkRegion *region)
733 {
734 GtkWidget *widget;
735 gint x, y;
736
737 if (!o_pinboard_shadow_labels.int_value)
738 return;
739
740 gdk_gc_set_clip_region(current_pinboard->shadow_gc, region);
741
742 widget = GTK_WIDGET(wl);
743
744 y = widget->allocation.y - wl->y_off;
745 x = widget->allocation.x - wl->x_off -
746 ((wl->text_width - widget->allocation.width) >> 1);
747
748 gdk_draw_layout(widget->window, current_pinboard->shadow_gc,
749 x + 1, y + 1, wl->layout);
750
751 if (o_pinboard_shadow_labels.int_value > 1)
752 gdk_draw_layout(widget->window, current_pinboard->shadow_gc,
753 x + 2, y + 2, wl->layout);
754
755 gdk_gc_set_clip_region(current_pinboard->shadow_gc, NULL);
756 }
757
758 /* Set and save (path, style) as the new backdrop.
759 * If style is BACKDROP_PROGRAM, the program is run to get the backdrop.
760 * Otherwise, the image is displayed now.
761 */
762 void pinboard_set_backdrop(const gchar *path, BackdropStyle style)
763 {
764 g_return_if_fail((path == NULL && style == BACKDROP_NONE) ||
765 (path != NULL && style != BACKDROP_NONE));
766
767 if (!current_pinboard)
768 {
769 if (!path)
770 return;
771 pinboard_activate("Default");
772 delayed_error(_("No pinboard was in use... "
773 "the 'Default' pinboard has been selected. "
774 "Use 'rox -p=Default' to turn it on in "
775 "future."));
776 g_return_if_fail(current_pinboard != NULL);
777 }
778
779 /* We might have just run the old backdrop program and now
780 * we're going to set a new one! Seems a bit mean...
781 */
782
783 abandon_backdrop_app(current_pinboard);
784
785 g_free(current_pinboard->backdrop);
786 current_pinboard->backdrop = g_strdup(path);
787 current_pinboard->backdrop_style = style;
788 reload_backdrop(current_pinboard,
789 current_pinboard->backdrop,
790 current_pinboard->backdrop_style);
791
792 pinboard_save();
793
794 if (set_backdrop_dialog)
795 {
796 DropBox *box = g_object_get_data(G_OBJECT(set_backdrop_dialog),
797 "rox-dropbox");
798 g_return_if_fail(box != NULL);
799 drop_box_set_path(box, current_pinboard->backdrop);
800 update_radios(set_backdrop_dialog);
801 }
802 }
803
804 /* Called on xrandr screen resizes */
805 void pinboard_update_size(void)
806 {
807 int width, height;
808
809 if (!current_pinboard)
810 return;
811
812 gtk_window_get_size(GTK_WINDOW(current_pinboard->window),
813 &width, &height);
814
815 /* Only update the pinboard's size if the screen gets bigger,
816 * not smaller. Not sure what to do about icons that end up
817 * offscreen if the screen shrinks, but perhaps a good policy
818 * is to leave them there until the screen size is increased
819 * again rather than mess them around. */
820 width = MAX(width, screen_width);
821 height = MAX(height, screen_height);
822
823 gtk_widget_set_size_request(current_pinboard->window, width, height);
824 }
825
826 /****************************************************************
827 * INTERNAL FUNCTIONS *
828 ****************************************************************/
829
830 static void backdrop_response(GtkWidget *dialog, gint response, gpointer data)
831 {
832 gtk_widget_destroy(dialog);
833 }
834
835 static void clear_backdrop(GtkWidget *drop_box, gpointer data)
836 {
837 pinboard_set_backdrop(NULL, BACKDROP_NONE);
838 }
839
840 static void drag_backdrop_dropped(GtkWidget *drop_box,
841 const guchar *path,
842 GtkWidget *dialog)
843 {
844 struct stat info;
845 Radios *radios;
846
847 radios = g_object_get_data(G_OBJECT(dialog), "rox-radios");
848 g_return_if_fail(radios != NULL);
849
850 if (mc_stat(path, &info))
851 {
852 delayed_error(
853 _("Can't access '%s':\n%s"), path,
854 g_strerror(errno));
855 return;
856 }
857
858 if (S_ISDIR(info.st_mode))
859 {
860 /* Use this program to set the backdrop */
861 pinboard_set_backdrop_app(path);
862 }
863 else if (S_ISREG(info.st_mode))
864 pinboard_set_backdrop(path, radios_get_value(radios));
865 else
866 delayed_error(_("Only files (and certain applications) can be "
867 "used to set the background image."));
868 }
869
870 /* Do this in the idle loop so that we don't try to put an unmanaged
871 * pinboard behind a managed panel (crashes some WMs).
872 */
873 static gboolean recreate_pinboard(gchar *name)
874 {
875 pinboard_activate(name);
876 g_free(name);
877
878 return FALSE;
879 }
880
881 static void pinboard_check_options(void)
882 {
883 GdkColor n_fg, n_bg, n_shadow;
884
885 gdk_color_parse(o_pinboard_fg_colour.value, &n_fg);
886 gdk_color_parse(o_pinboard_bg_colour.value, &n_bg);
887 gdk_color_parse(o_pinboard_shadow_colour.value, &n_shadow);
888
889 if (o_override_redirect.has_changed && current_pinboard)
890 {
891 gchar *name;
892 name = g_strdup(current_pinboard->name);
893 pinboard_activate(NULL);
894 g_idle_add((GtkFunction) recreate_pinboard, name);
895 }
896
897 tasklist_set_active(o_pinboard_tasklist.int_value && current_pinboard);
898
899 if (gdk_color_equal(&n_fg, &pin_text_fg_col) == 0 ||
900 gdk_color_equal(&n_bg, &pin_text_bg_col) == 0 ||
901 gdk_color_equal(&n_shadow, &pin_text_shadow_col) == 0 ||
902 o_pinboard_shadow_labels.has_changed ||
903 o_label_font.has_changed)
904 {
905 pin_text_fg_col = n_fg;
906 pin_text_bg_col = n_bg;
907 pin_text_shadow_col = n_shadow;
908 update_pinboard_font();
909
910 if (current_pinboard)
911 {
912 GtkWidget *w = current_pinboard->window;
913 GdkColormap *cm;
914
915 cm = gtk_widget_get_colormap(w);
916
917 gdk_colormap_alloc_color(cm, &n_bg, FALSE, TRUE);
918 gtk_widget_modify_bg(w, GTK_STATE_NORMAL, &n_bg);
919
920 gdk_gc_set_rgb_fg_color(current_pinboard->shadow_gc,
921 &n_shadow);
922
923 abandon_backdrop_app(current_pinboard);
924 reload_backdrop(current_pinboard,
925 current_pinboard->backdrop,
926 current_pinboard->backdrop_style);
927
928 reshape_all();
929 }
930
931 tasklist_style_changed();
932 }
933 }
934
935 static gint end_wink(gpointer data)
936 {
937 pinboard_wink_item(NULL, FALSE);
938 return FALSE;
939 }
940
941 /* Sets the appearance from the options and updates the size request of
942 * the image.
943 */
944 static void set_size_and_style(PinIcon *pi)
945 {
946 Icon *icon = (Icon *) pi;
947 MaskedPixmap *image = di_image(icon->item);
948 int iwidth = image->width;
949 int iheight = image->height;
950
951 gtk_widget_modify_fg(pi->label, GTK_STATE_PRELIGHT, &pin_text_fg_col);
952 gtk_widget_modify_bg(pi->label, GTK_STATE_PRELIGHT, &pin_text_bg_col);
953 gtk_widget_modify_fg(pi->label, GTK_STATE_NORMAL, &pin_text_fg_col);
954 gtk_widget_modify_bg(pi->label, GTK_STATE_NORMAL, &pin_text_bg_col);
955 widget_modify_font(pi->label, pinboard_font);
956
957 wrapped_label_set_text(WRAPPED_LABEL(pi->label), icon->item->leafname);
958
959 gtk_widget_set_size_request(pi->widget, iwidth, iheight);
960 }
961
962 static gint draw_icon(GtkWidget *widget, GdkEventExpose *event, PinIcon *pi)
963 {
964 static GtkWidgetClass *parent_class = NULL;
965 Icon *icon = (Icon *) pi;
966 DirItem *item = icon->item;
967 MaskedPixmap *image = di_image(item);
968 int iwidth = image->width;
969 int iheight = image->height;
970 int x, y;
971 GdkPixbuf *pixbuf;
972
973 if (!parent_class)
974 {
975 gpointer c = ((GTypeInstance *) widget)->g_class;
976 parent_class = (GtkWidgetClass *) g_type_class_peek_parent(c);
977 }
978
979 x = pi->widget->allocation.x;
980 y = pi->widget->allocation.y;
981
982 gdk_gc_set_clip_region(pi->widget->style->black_gc, event->region);
983
984 pixbuf = icon->selected
985 ? create_spotlight_pixbuf(image->pixbuf,
986 &pi->widget->style->base[GTK_STATE_SELECTED])
987 : image->pixbuf;
988
989 render_pixbuf(pixbuf,
990 pi->widget->window,
991 pi->widget->style->black_gc,
992 x, y, iwidth, iheight);
993
994 if (icon->selected)
995 g_object_unref(pixbuf);
996
997 if (item->flags & ITEM_FLAG_SYMLINK)
998 {
999 render_pixbuf(im_symlink->pixbuf, pi->widget->window,
1000 pi->widget->style->black_gc,
1001 x, y, -1, -1);
1002 }
1003 else if (item->flags & ITEM_FLAG_MOUNT_POINT)
1004 {
1005 MaskedPixmap *mp = item->flags & ITEM_FLAG_MOUNTED
1006 ? im_mounted
1007 : im_unmounted;
1008
1009 render_pixbuf(mp->pixbuf, pi->widget->window,
1010 pi->widget->style->black_gc,
1011 x, y, -1, -1);
1012 }
1013
1014 gdk_gc_set_clip_region(pi->widget->style->black_gc, NULL);
1015
1016 if (icon->selected)
1017 {
1018 GtkStyle *style = pi->label->style;
1019 GdkGC *gc = style->bg_gc[GTK_STATE_SELECTED];
1020
1021 gdk_gc_set_clip_region(gc, event->region);
1022 gdk_draw_rectangle(pi->label->window, gc, TRUE,
1023 pi->label->allocation.x,
1024 pi->label->allocation.y,
1025 pi->label->allocation.width,
1026 pi->label->allocation.height);
1027 gdk_gc_set_clip_region(gc, NULL);
1028 }
1029 else if (o_pinboard_shadow_labels.int_value)
1030 draw_label_shadow((WrappedLabel *) pi->label, event->region);
1031
1032 /* Draw children */
1033 gdk_gc_set_clip_region(pi->label->style->fg_gc[GTK_STATE_NORMAL],
1034 event->region);
1035 (parent_class->expose_event)(widget, event);
1036 gdk_gc_set_clip_region(pi->label->style->fg_gc[GTK_STATE_NORMAL], NULL);
1037
1038 /* Stop the button effect */
1039 return TRUE;
1040 }
1041
1042 static gint draw_wink(GtkWidget *widget, GdkEventExpose *event, PinIcon *pi)
1043 {
1044 gint x, y, width, height;
1045
1046 if (current_wink_icon != pi)
1047 return FALSE;
1048
1049 x = widget->allocation.x;
1050 y = widget->allocation.y;
1051 width = widget->allocation.width;
1052 height = widget->allocation.height;
1053
1054 gdk_draw_rectangle(widget->window,
1055 pi->widget->style->white_gc,
1056 FALSE,
1057 x, y, width - 1, height - 1);
1058 gdk_draw_rectangle(widget->window,
1059 pi->widget->style->black_gc,
1060 FALSE,
1061 x + 1, y + 1, width - 3, height - 3);
1062
1063 return FALSE;
1064 }
1065
1066 static gboolean enter_notify(GtkWidget *widget,
1067 GdkEventCrossing *event,
1068 PinIcon *pi)
1069 {
1070 icon_may_update((Icon *) pi);
1071 pin_icon_set_tip(pi);
1072 return TRUE;
1073 }
1074
1075 static gint leave_notify(GtkWidget *widget,
1076 GdkEventCrossing *event,
1077 PinIcon *pi)
1078 {
1079 return TRUE;
1080 }
1081
1082 static void select_lasso(void)
1083 {
1084 GList *next;
1085 int minx, miny, maxx, maxy;
1086
1087 g_return_if_fail(lasso_in_progress == TRUE);
1088
1089 minx = MIN(lasso_rect_x1, lasso_rect_x2);
1090 miny = MIN(lasso_rect_y1, lasso_rect_y2);
1091 maxx = MAX(lasso_rect_x1, lasso_rect_x2);
1092 maxy = MAX(lasso_rect_y1, lasso_rect_y2);
1093
1094 for (next = current_pinboard->icons; next; next = next->next)
1095 {
1096 PinIcon *pi = (PinIcon *) next->data;
1097 GtkAllocation *alloc = &pi->win->allocation;
1098 int cx = alloc->x + alloc->width / 2;
1099 int cy = alloc->y + alloc->height / 2;
1100
1101 if (cx > minx && cx < maxx && cy > miny && cy < maxy)
1102 icon_set_selected((Icon *) pi, TRUE);
1103 }
1104 }
1105
1106 static void cancel_lasso(void)
1107 {
1108 draw_lasso();
1109 lasso_in_progress = FALSE;
1110 }
1111
1112 static void pinboard_lasso_box(int start_x, int start_y)
1113 {
1114 if (lasso_in_progress)
1115 cancel_lasso();
1116 lasso_in_progress = TRUE;
1117 lasso_rect_x1 = lasso_rect_x2 = start_x;
1118 lasso_rect_y1 = lasso_rect_y2 = start_y;
1119
1120 draw_lasso();
1121 }
1122
1123 static gint lasso_motion(GtkWidget *widget, GdkEventMotion *event, gpointer d)
1124 {
1125 if (!lasso_in_progress)
1126 return FALSE;
1127
1128 if (lasso_rect_x2 != event->x || lasso_rect_y2 != event->y)
1129 {
1130 draw_lasso();
1131 lasso_rect_x2 = event->x;
1132 lasso_rect_y2 = event->y;
1133 draw_lasso();
1134 }
1135
1136 return FALSE;
1137 }
1138
1139 /* Mark the area of the screen covered by the lasso box for redraw */
1140 static void draw_lasso(void)
1141 {
1142 GdkRectangle area, edge;
1143
1144 if (!lasso_in_progress)
1145 return;
1146
1147 area.x = MIN(lasso_rect_x1, lasso_rect_x2);
1148 area.y = MIN(lasso_rect_y1, lasso_rect_y2);
1149 area.width = ABS(lasso_rect_x1 - lasso_rect_x2);
1150 area.height = ABS(lasso_rect_y1 - lasso_rect_y2);
1151
1152 edge.x = area.x;
1153 edge.y = area.y;
1154 edge.width = area.width;
1155
1156 edge.height = 2; /* Top */
1157 gdk_window_invalidate_rect(current_pinboard->window->window,
1158 &edge, TRUE);
1159
1160 edge.y += area.height - 2; /* Bottom */
1161 gdk_window_invalidate_rect(current_pinboard->window->window,
1162 &edge, TRUE);
1163
1164 edge.y = area.y;
1165 edge.height = area.height;
1166 edge.width = 2; /* Left */
1167 gdk_window_invalidate_rect(current_pinboard->window->window,
1168 &edge, TRUE);
1169
1170 edge.x += area.width - 2; /* Right */
1171 gdk_window_invalidate_rect(current_pinboard->window->window,
1172 &edge, TRUE);
1173 }
1174
1175 static void perform_action(PinIcon *pi, GdkEventButton *event)
1176 {
1177 BindAction action;
1178 Icon *icon = (Icon *) pi;
1179
1180 action = bind_lookup_bev(pi ? BIND_PINBOARD_ICON : BIND_PINBOARD,
1181 event);
1182
1183 /* Actions that can happen with or without an icon */
1184 switch (action)
1185 {
1186 case ACT_LASSO_CLEAR:
1187 icon_select_only(NULL);
1188 /* (no break) */
1189 case ACT_LASSO_MODIFY:
1190 pinboard_lasso_box(event->x, event->y);
1191 return;
1192 case ACT_CLEAR_SELECTION:
1193 icon_select_only(NULL);
1194 return;
1195 case ACT_POPUP_MENU:
1196 dnd_motion_ungrab();
1197 pinboard_show_menu(event, pi);
1198 return;
1199 case ACT_IGNORE:
1200 return;
1201 default:
1202 break;
1203 }
1204
1205 g_return_if_fail(pi != NULL);
1206
1207 switch (action)
1208 {
1209 case ACT_OPEN_ITEM:
1210 dnd_motion_ungrab();
1211 pinboard_wink_item(pi, TRUE);
1212 if (event->type == GDK_2BUTTON_PRESS)
1213 icon_set_selected(icon, FALSE);
1214 icon_run(icon);
1215 break;
1216 case ACT_EDIT_ITEM:
1217 dnd_motion_ungrab();
1218 pinboard_wink_item(pi, TRUE);
1219 if (event->type == GDK_2BUTTON_PRESS)
1220 icon_set_selected(icon, FALSE);
1221 run_diritem(icon->path, icon->item, NULL, NULL, TRUE);
1222 break;
1223 case ACT_PRIME_AND_SELECT:
1224 if (!icon->selected)
1225 icon_select_only(icon);
1226 dnd_motion_start(MOTION_READY_FOR_DND);
1227 break;
1228 case ACT_PRIME_AND_TOGGLE:
1229 icon_set_selected(icon, !icon->selected);
1230 dnd_motion_start(MOTION_READY_FOR_DND);
1231 break;
1232 case ACT_PRIME_FOR_DND:
1233 dnd_motion_start(MOTION_READY_FOR_DND);
1234 break;
1235 case ACT_TOGGLE_SELECTED:
1236 icon_set_selected(icon, !icon->selected);
1237 break;
1238 case ACT_SELECT_EXCL:
1239 icon_select_only(icon);
1240 break;
1241 default:
1242 g_warning("Unsupported action : %d\n", action);
1243 break;
1244 }
1245 }
1246
1247 static void forward_to_root(GdkEventButton *event)
1248 {
1249 XButtonEvent xev;
1250
1251 if (event->type == GDK_BUTTON_PRESS)
1252 {
1253 xev.type = ButtonPress;
1254 if (!o_blackbox_hack.int_value)
1255 XUngrabPointer(gdk_display, event->time);
1256 }
1257 else
1258 xev.type = ButtonRelease;
1259
1260 xev.window = gdk_x11_get_default_root_xwindow();
1261 xev.root = xev.window;
1262 xev.subwindow = None;
1263 xev.time = event->time;
1264 xev.x = event->x_root; /* Needed for icewm */
1265 xev.y = event->y_root;
1266 xev.x_root = event->x_root;
1267 xev.y_root = event->y_root;
1268 xev.state = event->state;
1269 xev.button = event->button;
1270 xev.same_screen = True;
1271
1272 XSendEvent(gdk_display, xev.window, False,
1273 ButtonPressMask | ButtonReleaseMask, (XEvent *) &xev);
1274 }
1275
1276 #define FORWARDED_BUTTON(pi, b) ((b) == 2 || \
1277 (((b) == 3 || (b) == 1) && o_forward_buttons_13.int_value && !pi))
1278
1279 /* pi is NULL if this is a root event */
1280 static gboolean button_release_event(GtkWidget *widget,
1281 GdkEventButton *event,
1282 PinIcon *pi)
1283 {
1284 if (FORWARDED_BUTTON(pi, event->button))
1285 forward_to_root(event);
1286 else if (dnd_motion_release(event))
1287 {
1288 if (motion_buttons_pressed == 0 && lasso_in_progress)
1289 {
1290 select_lasso();
1291 cancel_lasso();
1292 }
1293 return FALSE;
1294 }
1295
1296 perform_action(pi, event);
1297
1298 return TRUE;
1299 }
1300
1301 /* pi is NULL if this is a root event */
1302 static gboolean button_press_event(GtkWidget *widget,
1303 GdkEventButton *event,
1304 PinIcon *pi)
1305 {
1306 /* Just in case we've jumped in front of everything... */
1307 gdk_window_lower(current_pinboard->window->window);
1308
1309 if (FORWARDED_BUTTON(pi, event->button))
1310 forward_to_root(event);
1311 else if (dnd_motion_press(widget, event))
1312 perform_action(pi, event);
1313
1314 return TRUE;
1315 }
1316
1317 /* Forward mouse scroll events as buttons 4 and 5 to the window manager
1318 * (for old window managers that don't catch the buttons themselves)
1319 */
1320 static gboolean scroll_event(GtkWidget *widget, GdkEventScroll *event)
1321 {
1322 XButtonEvent xev;
1323
1324 xev.type = ButtonPress;
1325 xev.window = gdk_x11_get_default_root_xwindow();
1326 xev.root = xev.window;
1327 xev.subwindow = None;
1328 xev.time = event->time;
1329 xev.x = event->x_root; /* Needed for icewm */
1330 xev.y = event->y_root;
1331 xev.x_root = event->x_root;
1332 xev.y_root = event->y_root;
1333 xev.state = event->state;
1334 xev.same_screen = True;
1335
1336 if (event->direction == GDK_SCROLL_UP)
1337 xev.button = 4;
1338 else if (event->direction == GDK_SCROLL_DOWN)
1339 xev.button = 5;
1340 else
1341 return FALSE;
1342
1343 XSendEvent(gdk_display, xev.window, False,
1344 ButtonPressMask, (XEvent *) &xev);
1345
1346 return TRUE;
1347 }
1348
1349 static void start_drag(PinIcon *pi, GdkEventMotion *event)
1350 {
1351 GtkWidget *widget = pi->win;
1352 Icon *icon = (Icon *) pi;
1353
1354 if (!icon->selected)
1355 {
1356 tmp_icon_selected = TRUE;
1357 icon_select_only(icon);
1358 }
1359
1360 g_return_if_fail(icon_selection != NULL);
1361
1362 pinboard_drag_in_progress = icon;
1363
1364 if (icon_selection->next == NULL)
1365 drag_one_item(widget, event, icon->path, icon->item, NULL);
1366 else
1367 {
1368 guchar *uri_list;
1369
1370 uri_list = icon_create_uri_list();
1371 drag_selection(widget, event, uri_list);
1372 g_free(uri_list);
1373 }
1374 }
1375
1376 /* An icon is being dragged around... */
1377 static gint icon_motion_notify(GtkWidget *widget,
1378 GdkEventMotion *event,
1379 PinIcon *pi)
1380 {
1381 if (motion_state == MOTION_READY_FOR_DND)
1382 {
1383 if (dnd_motion_moved(event))
1384 start_drag(pi, event);
1385 return TRUE;
1386 }
1387
1388 return FALSE;
1389 }
1390
1391 static void backdrop_from_xml(xmlNode *node)
1392 {
1393 gchar *style;
1394
1395 g_free(current_pinboard->backdrop);
1396 current_pinboard->backdrop = xmlNodeGetContent(node);
1397
1398 style = xmlGetProp(node, "style");
1399
1400 if (style)
1401 {
1402 current_pinboard->backdrop_style =
1403 g_strcasecmp(style, "Tiled") == 0 ? BACKDROP_TILE :
1404 g_strcasecmp(style, "Scaled") == 0 ? BACKDROP_SCALE :
1405 g_strcasecmp(style, "Stretched") == 0 ? BACKDROP_STRETCH :
1406 g_strcasecmp(style, "Centred") == 0 ? BACKDROP_CENTRE :
1407 g_strcasecmp(style, "Program") == 0 ? BACKDROP_PROGRAM :
1408 BACKDROP_NONE;
1409 g_free(style);
1410 }
1411 else
1412 current_pinboard->backdrop_style = BACKDROP_TILE;
1413 }
1414
1415 /* Create one pinboard icon for each icon in the doc */
1416 static void pinboard_load_from_xml(xmlDocPtr doc)
1417 {
1418 xmlNodePtr node, root;
1419 char *tmp, *label, *path, *shortcut, *args;
1420 int x, y;
1421
1422 root = xmlDocGetRootElement(doc);
1423
1424 for (node = root->xmlChildrenNode; node; node = node->next)
1425 {
1426 if (node->type != XML_ELEMENT_NODE)
1427 continue;
1428 if (strcmp(node->name, "backdrop") == 0)
1429 {
1430 backdrop_from_xml(node);
1431 continue;
1432 }
1433 if (strcmp(node->name, "icon") != 0)
1434 continue;
1435
1436 tmp = xmlGetProp(node, "x");
1437 if (!tmp)
1438 continue;
1439 x = atoi(tmp);
1440 g_free(tmp);
1441
1442 tmp = xmlGetProp(node, "y");
1443 if (!tmp)
1444 continue;
1445 y = atoi(tmp);
1446 g_free(tmp);
1447
1448 label = xmlGetProp(node, "label");
1449 if (!label)
1450 label = g_strdup("<missing label>");
1451 path = xmlNodeGetContent(node);
1452 if (!path)
1453 path = g_strdup("<missing path>");
1454 shortcut = xmlGetProp(node, "shortcut");
1455 args = xmlGetProp(node, "args");
1456
1457 pinboard_pin_with_args(path, label, x, y, shortcut, args);
1458
1459 g_free(path);
1460 g_free(label);
1461 g_free(shortcut);
1462 g_free(args);
1463 }
1464 }
1465
1466 /* Called for each line in the pinboard file while loading a new board.
1467 * Only used for old-format files when converting to XML.
1468 */
1469 static const char *pin_from_file(gchar *line)
1470 {
1471 gchar *leaf = NULL;
1472 int x, y, n;
1473
1474 if (*line == '<')
1475 {
1476 gchar *end;
1477
1478 end = strchr(line + 1, '>');
1479 if (!end)
1480 return _("Missing '>' in icon label");
1481
1482 leaf = g_strndup(line + 1, end - line - 1);
1483
1484 line = end + 1;
1485
1486 while (g_ascii_isspace(*line))
1487 line++;
1488 if (*line != ',')
1489 return _("Missing ',' after icon label");
1490 line++;
1491 }
1492
1493 if (sscanf(line, " %d , %d , %n", &x, &y, &n) < 2)
1494 return NULL; /* Ignore format errors */
1495
1496 pinboard_pin(line + n, leaf, x, y, NULL);
1497
1498 g_free(leaf);
1499
1500 return NULL;
1501 }
1502
1503 /* Write the current state of the pinboard to the current pinboard file */
1504 static void pinboard_save(void)
1505 {
1506 guchar *save = NULL;
1507 guchar *save_new = NULL;
1508 GList *next;
1509 xmlDocPtr doc = NULL;
1510 xmlNodePtr root;
1511
1512 g_return_if_fail(current_pinboard != NULL);
1513
1514 if (strchr(current_pinboard->name, '/'))
1515 save = g_strdup(current_pinboard->name);
1516 else
1517 {
1518 guchar *leaf;
1519
1520 leaf = g_strconcat("pb_", current_pinboard->name, NULL);
1521 save = choices_find_xdg_path_save(leaf, PROJECT, SITE, TRUE);
1522 g_free(leaf);
1523 }
1524
1525 if (!save)
1526 return;
1527
1528 doc = xmlNewDoc("1.0");
1529 xmlDocSetRootElement(doc, xmlNewDocNode(doc, NULL, "pinboard", NULL));
1530
1531 root = xmlDocGetRootElement(doc);
1532
1533 if (current_pinboard->backdrop)
1534 {
1535 BackdropStyle style = current_pinboard->backdrop_style;
1536 xmlNodePtr tree;
1537
1538 tree = xmlNewTextChild(root, NULL, "backdrop",
1539 current_pinboard->backdrop);
1540 xmlSetProp(tree, "style",
1541 style == BACKDROP_TILE ? "Tiled" :
1542 style == BACKDROP_CENTRE ? "Centred" :
1543 style == BACKDROP_SCALE ? "Scaled" :
1544 style == BACKDROP_STRETCH ? "Stretched" :
1545 "Program");
1546 }
1547
1548 for (next = current_pinboard->icons; next; next = next->next)
1549 {
1550 xmlNodePtr tree;
1551 PinIcon *pi = (PinIcon *) next->data;
1552 Icon *icon = (Icon *) pi;
1553 char *tmp;
1554
1555 tree = xmlNewTextChild(root, NULL, "icon", icon->src_path);
1556
1557 tmp = g_strdup_printf("%d", pi->x);
1558 xmlSetProp(tree, "x", tmp);
1559 g_free(tmp);
1560
1561 tmp = g_strdup_printf("%d", pi->y);
1562 xmlSetProp(tree, "y", tmp);
1563 g_free(tmp);
1564
1565 xmlSetProp(tree, "label", icon->item->leafname);
1566 if (icon->shortcut)
1567 xmlSetProp(tree, "shortcut", icon->shortcut);
1568 if (icon->args)
1569 xmlSetProp(tree, "args", icon->args);
1570 }
1571
1572 save_new = g_strconcat(save, ".new", NULL);
1573 if (save_xml_file(doc, save_new) || rename(save_new, save))
1574 delayed_error(_("Error saving pinboard %s: %s"),
1575 save, g_strerror(errno));
1576 g_free(save_new);
1577
1578 g_free(save);
1579 if (doc)
1580 xmlFreeDoc(doc);
1581 }
1582
1583 static void snap_to_grid(int *x, int *y)
1584 {
1585 int step = o_pinboard_grid_step.int_value;
1586
1587 *x = ((*x + step / 2) / step) * step;
1588 *y = ((*y + step / 2) / step) * step;
1589 }
1590
1591 /* Convert (x,y) from a centre point to a window position */
1592 static void offset_from_centre(PinIcon *pi, int *x, int *y)
1593 {
1594 gboolean clamp = o_pinboard_clamp_icons.int_value;
1595 GtkRequisition req;
1596
1597 gtk_widget_size_request(pi->win, &req);
1598
1599 *x -= req.width >> 1;
1600 *y -= req.height >> 1;
1601 *x = CLAMP(*x, 0, screen_width - (clamp ? req.width : 0));
1602 *y = CLAMP(*y, 0, screen_height - (clamp ? req.height : 0));
1603 }
1604
1605 /* Same as drag_set_dest(), but for pinboard icons */
1606 static void drag_set_pinicon_dest(PinIcon *pi)
1607 {
1608 GtkObject *obj = GTK_OBJECT(pi->win);
1609
1610 make_drop_target(pi->win, 0);
1611
1612 g_signal_connect(obj, "drag_motion", G_CALLBACK(drag_motion), pi);
1613 g_signal_connect(obj, "drag_leave", G_CALLBACK(drag_leave), pi);
1614 g_signal_connect(obj, "drag_end", G_CALLBACK(drag_end), pi);
1615 }
1616
1617 /* Called during the drag when the mouse is in a widget registered
1618 * as a drop target. Returns TRUE if we can accept the drop.
1619 */
1620 static gboolean drag_motion(GtkWidget *widget,
1621 GdkDragContext *context,
1622 gint x,
1623 gint y,
1624 guint time,
1625 PinIcon *pi)
1626 {
1627 GdkDragAction action = context->suggested_action;
1628 const char *type = NULL;
1629 Icon *icon = (Icon *) pi;
1630 DirItem *item = icon->item;
1631
1632 if (gtk_drag_get_source_widget(context) == widget)
1633 {
1634 g_dataset_set_data(context, "drop_dest_type",
1635 (gpointer) drop_dest_pass_through);
1636 return FALSE; /* Can't drag something to itself! */
1637 }
1638
1639 if (icon->selected)
1640 goto out; /* Can't drag a selection to itself */
1641
1642 type = dnd_motion_item(context, &item);
1643
1644 if ((context->actions & GDK_ACTION_ASK) && o_dnd_left_menu.int_value
1645 && type != drop_dest_prog)
1646 {
1647 guint state;
1648 gdk_window_get_pointer(NULL, NULL, NULL, &state);
1649 if (state & GDK_BUTTON1_MASK)
1650 action = GDK_ACTION_ASK;
1651 }
1652
1653 if (!item)
1654 type = NULL;
1655 out:
1656 /* We actually must pretend to accept the drop, even if the
1657 * directory isn't writeable, so that the spring-opening
1658 * thing works.
1659 */
1660
1661 /* Don't allow drops to non-writeable directories */
1662 if (o_dnd_spring_open.int_value == FALSE &&
1663 type == drop_dest_dir &&
1664 access(icon->path, W_OK) != 0)
1665 {
1666 type = NULL;
1667 }
1668
1669 g_dataset_set_data(context, "drop_dest_type", (gpointer) type);
1670 if (type)
1671 {
1672 gdk_drag_status(context, action, time);
1673 g_dataset_set_data_full(context, "drop_dest_path",
1674 g_strdup(icon->path), g_free);
1675 if (type == drop_dest_dir)
1676 dnd_spring_load(context, NULL);
1677
1678 pinboard_wink_item(pi, FALSE);
1679 }
1680 else
1681 gdk_drag_status(context, 0, time);
1682
1683 /* Always return TRUE to stop the pinboard getting the events */
1684 return TRUE;
1685 }
1686
1687 static gboolean pinboard_shadow = FALSE;
1688 static gint shadow_x, shadow_y;
1689 #define SHADOW_SIZE (ICON_WIDTH)
1690
1691 static gboolean bg_expose(GtkWidget *widget,
1692 GdkEventExpose *event, gpointer data)
1693 {
1694 GdkRectangle clipbox;
1695 gpointer gclass = ((GTypeInstance *) widget)->g_class;
1696 gboolean double_buffer;
1697
1698 gdk_gc_set_clip_region(widget->style->white_gc, event->region);
1699 gdk_gc_set_clip_region(widget->style->black_gc, event->region);
1700
1701 gdk_region_get_clipbox(event->region, &clipbox);
1702
1703 double_buffer = (clipbox.width * clipbox.height) < 20000;
1704 if (double_buffer)
1705 gdk_window_begin_paint_region(widget->window, event->region);
1706
1707 /* Clear the area to the background image */
1708 {
1709 GtkStyle *style = current_pinboard->window->style;
1710 GdkGC *gc = style->bg_gc[GTK_STATE_NORMAL];
1711
1712 gdk_gc_set_clip_region(gc, event->region);
1713 if (style->bg_pixmap[GTK_STATE_NORMAL])
1714 {
1715 gdk_gc_set_ts_origin(gc, 0, 0);
1716 gdk_gc_set_fill(gc, GDK_TILED);
1717 gdk_gc_set_tile(gc, style->bg_pixmap[GTK_STATE_NORMAL]);
1718 }
1719
1720 gdk_draw_rectangle(current_pinboard->window->window, gc, TRUE,
1721 clipbox.x, clipbox.y,
1722 clipbox.width, clipbox.height);
1723 if (style->bg_pixmap[GTK_STATE_NORMAL])
1724 gdk_gc_set_fill(gc, GDK_SOLID);
1725
1726 gdk_gc_set_clip_region(gc, NULL);
1727 }
1728
1729 if (pinboard_shadow)
1730 {
1731 gdk_draw_rectangle(widget->window,
1732 widget->style->white_gc, FALSE,
1733 shadow_x, shadow_y,
1734 SHADOW_SIZE, SHADOW_SIZE);
1735 gdk_draw_rectangle(widget->window,
1736 widget->style->black_gc, FALSE,
1737 shadow_x + 1, shadow_y + 1,
1738 SHADOW_SIZE - 2, SHADOW_SIZE - 2);
1739 }
1740
1741 if (lasso_in_progress)
1742 {
1743 GdkRectangle area;
1744
1745 area.x = MIN(lasso_rect_x1, lasso_rect_x2);
1746 area.y = MIN(lasso_rect_y1, lasso_rect_y2);
1747 area.width = ABS(lasso_rect_x1 - lasso_rect_x2);
1748 area.height = ABS(lasso_rect_y1 - lasso_rect_y2);
1749
1750 if (area.width > 4 && area.height > 4)
1751 {
1752 gdk_draw_rectangle(widget->window,
1753 widget->style->white_gc, FALSE,
1754 area.x, area.y,
1755 area.width - 1, area.height - 1);
1756 gdk_draw_rectangle(widget->window,
1757 widget->style->black_gc, FALSE,
1758 area.x + 1, area.y + 1,
1759 area.width - 3, area.height - 3);
1760 }
1761 }
1762
1763 gdk_gc_set_clip_region(widget->style->white_gc, NULL);
1764 gdk_gc_set_clip_region(widget->style->black_gc, NULL);
1765
1766 ((GtkWidgetClass *) gclass)->expose_event(widget, event);
1767
1768 if (double_buffer)
1769 gdk_window_end_paint(widget->window);
1770
1771 return TRUE;
1772 }
1773
1774 /* Draw a 'shadow' under an icon being dragged, showing where
1775 * it will land.
1776 */
1777 static void pinboard_set_shadow(gboolean on)
1778 {
1779 GdkRectangle area;
1780
1781 if (pinboard_shadow)
1782 {
1783 area.x = shadow_x;
1784 area.y = shadow_y;
1785 area.width = SHADOW_SIZE + 1;
1786 area.height = SHADOW_SIZE + 1;
1787
1788 gdk_window_invalidate_rect(current_pinboard->window->window,
1789 &area, TRUE);
1790 }
1791
1792 if (on)
1793 {
1794 int old_x = shadow_x, old_y = shadow_y;
1795
1796 gdk_window_get_pointer(current_pinboard->fixed->window,
1797 &shadow_x, &shadow_y, NULL);
1798 snap_to_grid(&shadow_x, &shadow_y);
1799 shadow_x -= SHADOW_SIZE / 2;
1800 shadow_y -= SHADOW_SIZE / 2;
1801
1802
1803 if (pinboard_shadow && shadow_x == old_x && shadow_y == old_y)
1804 return;
1805
1806 area.x = shadow_x;
1807 area.y = shadow_y;
1808 area.width = SHADOW_SIZE + 1;
1809 area.height = SHADOW_SIZE + 1;
1810
1811 gdk_window_invalidate_rect(current_pinboard->window->window,
1812 &area, TRUE);
1813 }
1814
1815 pinboard_shadow = on;
1816 }
1817
1818 /* Called when dragging some pinboard icons finishes */
1819 void pinboard_move_icons(void)
1820 {
1821 int x = shadow_x, y = shadow_y;
1822 PinIcon *pi = (PinIcon *) pinboard_drag_in_progress;
1823 int width, height;
1824 int dx, dy;
1825 GList *next;
1826
1827 g_return_if_fail(pi != NULL);
1828
1829 x += SHADOW_SIZE / 2;
1830 y += SHADOW_SIZE / 2;
1831 snap_to_grid(&x, &y);
1832
1833 if (pi->x == x && pi->y == y)
1834 return;
1835
1836 /* Find out how much the dragged icon moved (after snapping).
1837 * Move all selected icons by the same amount.
1838 */
1839 dx = x - pi->x;
1840 dy = y - pi->y;
1841
1842 /* Move the other selected icons to keep the same relative
1843 * position.
1844 */
1845 for (next = icon_selection; next; next = next->next)
1846 {
1847 PinIcon *pi = (PinIcon *) next->data;
1848 int nx, ny;
1849
1850 g_return_if_fail(IS_PIN_ICON(pi));
1851
1852 pi->x += dx;
1853 pi->y += dy;
1854 nx = pi->x;
1855 ny = pi->y;
1856
1857 gdk_drawable_get_size(pi->win->window, &width, &height);
1858 offset_from_centre(pi, &nx, &ny);
1859
1860 fixed_move_fast(GTK_FIXED(current_pinboard->fixed),
1861 pi->win, nx, ny);
1862 }
1863
1864 pinboard_save();
1865 }
1866
1867 static void drag_leave(GtkWidget *widget,
1868 GdkDragContext *context,
1869 guint32 time,
1870 PinIcon *pi)
1871 {
1872 pinboard_wink_item(NULL, FALSE);
1873 dnd_spring_abort();
1874 }
1875
1876 static gboolean bg_drag_leave(GtkWidget *widget,
1877 GdkDragContext *context,
1878 guint32 time,
1879 gpointer data)
1880 {
1881 pinboard_set_shadow(FALSE);
1882 return TRUE;
1883 }
1884
1885 static gboolean bg_drag_motion(GtkWidget *widget,
1886 GdkDragContext *context,
1887 gint x,
1888 gint y,
1889 guint time,
1890 gpointer data)
1891 {
1892 /* Dragging from the pinboard to the pinboard is not allowed */
1893
1894 if (!provides(context, text_uri_list))
1895 return FALSE;
1896
1897 pinboard_set_shadow(TRUE);
1898
1899 gdk_drag_status(context,
1900 context->suggested_action == GDK_ACTION_ASK
1901 ? GDK_ACTION_LINK : context->suggested_action,
1902 time);
1903 return TRUE;
1904 }
1905
1906 static void drag_end(GtkWidget *widget,
1907 GdkDragContext *context,
1908 PinIcon *pi)
1909 {
1910 pinboard_drag_in_progress = NULL;
1911 if (tmp_icon_selected)
1912 {
1913 icon_select_only(NULL);
1914 tmp_icon_selected = FALSE;
1915 }
1916 }
1917
1918 /* Something which affects all the icons has changed - reshape
1919 * and redraw all of them.
1920 */
1921 static void reshape_all(void)
1922 {
1923 GList *next;
1924
1925 g_return_if_fail(current_pinboard != NULL);
1926
1927 for (next = current_pinboard->icons; next; next = next->next)
1928 {
1929 Icon *icon = (Icon *) next->data;
1930 pinboard_reshape_icon(icon);
1931 }
1932 }
1933
1934 /* Turns off the pinboard. Does not call gtk_main_quit. */
1935 static void pinboard_clear(void)
1936 {
1937 GList *next;
1938
1939 g_return_if_fail(current_pinboard != NULL);
1940
1941 tasklist_set_active(FALSE);
1942
1943 next = current_pinboard->icons;
1944 while (next)
1945 {
1946 PinIcon *pi = (PinIcon *) next->data;
1947
1948 next = next->next;
1949
1950 gtk_widget_destroy(pi->win);
1951 }
1952
1953 gtk_widget_destroy(current_pinboard->window);
1954
1955 abandon_backdrop_app(current_pinboard);
1956
1957 g_object_unref(current_pinboard->shadow_gc);
1958 current_pinboard->shadow_gc = NULL;
1959
1960 g_free(current_pinboard->name);
1961 null_g_free(&current_pinboard);
1962
1963 number_of_windows--;
1964 }
1965
1966 static gpointer parent_class;
1967
1968 static void pin_icon_destroy(Icon *icon)
1969 {
1970 PinIcon *pi = (PinIcon *) icon;
1971
1972 g_return_if_fail(pi->win != NULL);
1973
1974 gtk_widget_hide(pi->win); /* Stops flicker - stupid GtkFixed! */
1975 gtk_widget_destroy(pi->win);
1976 }
1977
1978 static void pinboard_remove_items(void)
1979 {
1980 g_return_if_fail(icon_selection != NULL);
1981
1982 while (icon_selection)
1983 icon_destroy((Icon *) icon_selection->data);
1984
1985 pinboard_save();
1986 }
1987
1988 static void pin_icon_update(Icon *icon)
1989 {
1990 pinboard_reshape_icon(icon);
1991 pinboard_save();
1992 }
1993
1994 static gboolean pin_icon_same_group(Icon *icon, Icon *other)
1995 {
1996 return IS_PIN_ICON(other);
1997 }
1998
1999 static void pin_wink_icon(Icon *icon)
2000 {
2001 pinboard_wink_item((PinIcon *) icon, TRUE);
2002 }
2003
2004 static void pin_icon_class_init(gpointer gclass, gpointer data)
2005 {
2006 IconClass *icon = (IconClass *) gclass;
2007
2008 parent_class = g_type_class_peek_parent(gclass);
2009
2010 icon->destroy = pin_icon_destroy;
2011 icon->redraw = pinboard_reshape_icon;
2012 icon->update = pin_icon_update;
2013 icon->wink = pin_wink_icon;
2014 icon->remove_items = pinboard_remove_items;
2015 icon->same_group = pin_icon_same_group;
2016 }
2017
2018 static void pin_icon_init(GTypeInstance *object, gpointer gclass)
2019 {
2020 }
2021
2022 static GType pin_icon_get_type(void)
2023 {
2024 static GType type = 0;
2025
2026 if (!type)
2027 {
2028 static const GTypeInfo info =
2029 {
2030 sizeof (PinIconClass),
2031 NULL, /* base_init */
2032 NULL, /* base_finalise */
2033 pin_icon_class_init,
2034 NULL, /* class_finalise */
2035 NULL, /* class_data */
2036 sizeof(PinIcon),
2037 0, /* n_preallocs */
2038 pin_icon_init
2039 };
2040
2041 type = g_type_register_static(icon_get_type(),
2042 "PinIcon", &info, 0);
2043 }
2044
2045 return type;
2046 }
2047
2048 static PinIcon *pin_icon_new(const char *pathname, const char *name)
2049 {
2050 PinIcon *pi;
2051 Icon *icon;
2052
2053 pi = g_object_new(pin_icon_get_type(), NULL);
2054 icon = (Icon *) pi;
2055
2056 icon_set_path(icon, pathname, name);
2057
2058 return pi;
2059 }
2060
2061 /* Called when the window widget is somehow destroyed */
2062 static void pin_icon_destroyed(PinIcon *pi)
2063 {
2064 g_return_if_fail(pi->win != NULL);
2065
2066 pi->win = NULL;
2067
2068 pinboard_wink_item(NULL, FALSE);
2069
2070 if (pinboard_drag_in_progress == (Icon *) pi)
2071 pinboard_drag_in_progress = NULL;
2072
2073 if (current_pinboard)
2074 current_pinboard->icons =
2075 g_list_remove(current_pinboard->icons, pi);
2076
2077 g_object_unref(pi);
2078 }
2079
2080 /* Set the tooltip */
2081 static void pin_icon_set_tip(PinIcon *pi)
2082 {
2083 XMLwrapper *ai;
2084 xmlNode *node;
2085 Icon *icon = (Icon *) pi;
2086
2087 g_return_if_fail(pi != NULL);
2088
2089 ai = appinfo_get(icon->path, icon->item);
2090
2091 if (ai && ((node = xml_get_section(ai, NULL, "Summary"))))
2092 {
2093 guchar *str;
2094 str = xmlNodeListGetString(node->doc,
2095 node->xmlChildrenNode, 1);
2096 if (str)
2097 {
2098 gtk_tooltips_set_tip(tooltips, pi->win, str, NULL);
2099 g_free(str);
2100 }
2101 }
2102 else
2103 gtk_tooltips_set_tip(tooltips, pi->widget, NULL, NULL);
2104
2105 if (ai)
2106 g_object_unref(ai);
2107 }
2108
2109 static void pinboard_show_menu(GdkEventButton *event, PinIcon *pi)
2110 {
2111 GtkWidget *option_item;
2112 int pos[3];
2113 GList *list;
2114
2115 pos[0] = event->x_root;
2116 pos[1] = event->y_root;
2117
2118 option_item = gtk_image_menu_item_new_with_label(_("Backdrop..."));
2119 g_signal_connect(option_item, "activate",
2120 G_CALLBACK(pinboard_set_backdrop_box), NULL);
2121 icon_prepare_menu((Icon *) pi, option_item);
2122
2123 list = gtk_container_get_children(GTK_CONTAINER(icon_menu));
2124 pos[2] = g_list_length(list) - 6;
2125 g_list_free(list);
2126
2127 gtk_menu_popup(GTK_MENU(icon_menu), NULL, NULL,
2128 position_menu,
2129 (gpointer) pos, event->button, event->time);
2130 }
2131
2132 static void create_pinboard_window(Pinboard *pinboard)
2133 {
2134 GtkWidget *win;
2135
2136 g_return_if_fail(pinboard->window == NULL);
2137
2138 win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
2139 gtk_widget_set_style(win, gtk_widget_get_default_style());
2140
2141 gtk_widget_set_double_buffered(win, FALSE);
2142 gtk_widget_set_app_paintable(win, TRUE);
2143 gtk_widget_set_name(win, "rox-pinboard");
2144 pinboard->window = win;
2145 pinboard->fixed = gtk_fixed_new();
2146 gtk_container_add(GTK_CONTAINER(win), pinboard->fixed);
2147
2148 gtk_window_set_wmclass(GTK_WINDOW(win), "ROX-Pinboard", PROJECT);
2149
2150 gtk_widget_set_size_request(win, screen_width, screen_height);
2151 gtk_widget_realize(win);
2152 gtk_window_move(GTK_WINDOW(win), 0, 0);
2153 make_panel_window(win);
2154
2155 /* TODO: Use gdk function when it supports this type */
2156 {
2157 GdkAtom desktop_type;
2158
2159 desktop_type = gdk_atom_intern("_NET_WM_WINDOW_TYPE_DESKTOP",
2160 FALSE);
2161 gdk_property_change(win->window,
2162 gdk_atom_intern("_NET_WM_WINDOW_TYPE", FALSE),
2163 gdk_atom_intern("ATOM", FALSE), 32,
2164 GDK_PROP_MODE_REPLACE, (guchar *) &desktop_type, 1);
2165 }
2166
2167 gtk_widget_add_events(win,
2168 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
2169 GDK_EXPOSURE_MASK |
2170 GDK_BUTTON1_MOTION_MASK |
2171 GDK_BUTTON2_MOTION_MASK | GDK_BUTTON3_MOTION_MASK);
2172 g_signal_connect(win, "button-press-event",
2173 G_CALLBACK(button_press_event), NULL);
2174 g_signal_connect(win, "button-release-event",
2175 G_CALLBACK(button_release_event), NULL);
2176 g_signal_connect(win, "motion-notify-event",
2177 G_CALLBACK(lasso_motion), NULL);
2178 g_signal_connect(pinboard->fixed, "expose_event",
2179 G_CALLBACK(bg_expose), NULL);
2180
2181 /* Some window managers use scroll events on the root to switch
2182 * desktops, but don't cope with our pinboard window, so we forward
2183 * them manually in that case.
2184 */
2185 g_signal_connect(win, "scroll-event", G_CALLBACK(scroll_event), NULL);
2186
2187 /* Drag and drop handlers */
2188 drag_set_pinboard_dest(win);
2189 g_signal_connect(win, "drag_motion", G_CALLBACK(bg_drag_motion), NULL);
2190 g_signal_connect(win, "drag_leave", G_CALLBACK(bg_drag_leave), NULL);
2191
2192 pinboard->shadow_gc = gdk_gc_new(win->window);
2193 gdk_gc_set_rgb_fg_color(pinboard->shadow_gc, &pin_text_shadow_col);
2194
2195 reload_backdrop(current_pinboard, NULL, BACKDROP_NONE);
2196
2197 gtk_widget_show_all(win);
2198 gdk_window_lower(win->window);
2199 }
2200
2201 /* Load image 'path' and scale according to 'style' */
2202 static GdkPixmap *load_backdrop(const gchar *path, BackdropStyle style)
2203 {
2204 GdkPixmap *pixmap;
2205 GdkPixbuf *pixbuf;
2206 GError *error = NULL;
2207
2208 pixbuf = gdk_pixbuf_new_from_file(path, &error);
2209 if (error)
2210 {
2211 delayed_error(_("Error loading backdrop image:\n%s\n"
2212 "Backdrop removed."),
2213 error->message);
2214 g_error_free(error);
2215 pinboard_set_backdrop(NULL, BACKDROP_NONE);
2216 return NULL;
2217 }
2218
2219 if (style == BACKDROP_STRETCH)
2220 {
2221 GdkPixbuf *old = pixbuf;
2222
2223 pixbuf = gdk_pixbuf_scale_simple(old,
2224 screen_width, screen_height,
2225 GDK_INTERP_HYPER);
2226
2227 g_object_unref(old);
2228 }
2229 else if (style == BACKDROP_CENTRE || style == BACKDROP_SCALE)
2230 {
2231 GdkPixbuf *old = pixbuf;
2232 int x, y, width, height;
2233 float scale;
2234
2235 width = gdk_pixbuf_get_width(pixbuf);
2236 height = gdk_pixbuf_get_height(pixbuf);
2237
2238 if (style == BACKDROP_SCALE)
2239 {
2240 float scale_x, scale_y;
2241 scale_x = screen_width / ((float) width);
2242 scale_y = screen_height / ((float) height);
2243 scale = MIN(scale_x, scale_y);
2244 }
2245 else
2246 scale = 1;
2247
2248 pixbuf = gdk_pixbuf_new(
2249 gdk_pixbuf_get_colorspace(pixbuf), FALSE,
2250 8, screen_width, screen_height);
2251 gdk_pixbuf_fill(pixbuf, ((pin_text_bg_col.red & 0xff00) << 16) |
2252 ((pin_text_bg_col.green & 0xff00) << 8) |
2253 ((pin_text_bg_col.blue & 0xff00)));
2254
2255 x = (screen_width - width * scale) / 2;
2256 y = (screen_height - height * scale) / 2;
2257 x = MAX(x, 0);
2258 y = MAX(y, 0);
2259
2260 gdk_pixbuf_composite(old, pixbuf,
2261 x, y,
2262 MIN(screen_width, width * scale),
2263 MIN(screen_height, height * scale),
2264 x, y, scale, scale,
2265 o_pinboard_image_scaling.int_value?
2266 GDK_INTERP_BILINEAR: GDK_INTERP_HYPER,
2267 255);
2268 g_object_unref(old);
2269 }
2270
2271 gdk_pixbuf_render_pixmap_and_mask(pixbuf,
2272 &pixmap, NULL, 0);
2273 g_object_unref(pixbuf);
2274
2275 return pixmap;
2276 }
2277
2278 static void abandon_backdrop_app(Pinboard *pinboard)
2279 {
2280 g_return_if_fail(pinboard != NULL);
2281
2282 if (pinboard->to_backdrop_app != -1)
2283 {
2284 close(pinboard->to_backdrop_app);
2285 close(pinboard->from_backdrop_app);
2286 g_source_remove(pinboard->input_tag);
2287 g_string_free(pinboard->input_buffer, TRUE);
2288 pinboard->to_backdrop_app = -1;
2289 pinboard->from_backdrop_app = -1;
2290 pinboard->input_tag = -1;
2291 pinboard->input_buffer = NULL;
2292 }
2293
2294 g_return_if_fail(pinboard->to_backdrop_app == -1);
2295 g_return_if_fail(pinboard->from_backdrop_app == -1);
2296 g_return_if_fail(pinboard->input_tag == -1);
2297 g_return_if_fail(pinboard->input_buffer == NULL);
2298 }
2299
2300 /* A single line has been read from the child.
2301 * Processes the command, and replies 'ok' (or abandons the child on error).
2302 */
2303 static void command_from_backdrop_app(Pinboard *pinboard, const gchar *command)
2304 {
2305 BackdropStyle style;
2306 const char *ok = "ok\n";
2307
2308 if (strncmp(command, "tile ", 5) == 0)
2309 {
2310 style = BACKDROP_TILE;
2311 command += 5;
2312 }
2313 else if (strncmp(command, "scale ", 6) == 0)
2314 {
2315 style = BACKDROP_SCALE;
2316 command += 6;
2317 }
2318 else if (strncmp(command, "stretch ", 8) == 0)
2319 {
2320 style = BACKDROP_STRETCH;
2321 command += 8;
2322 }
2323 else if (strncmp(command, "centre ", 7) == 0)
2324 {
2325 style = BACKDROP_CENTRE;
2326 command += 7;
2327 }
2328 else
2329 {
2330 g_warning("Invalid command '%s' from backdrop app\n",
2331 command);
2332 abandon_backdrop_app(pinboard);
2333 return;
2334 }
2335
2336 /* Load the backdrop. May abandon the program if loading fails. */
2337 reload_backdrop(pinboard, command, style);
2338
2339 if (pinboard->to_backdrop_app == -1)
2340 return;
2341
2342 while (*ok)
2343 {
2344 int sent;
2345
2346 sent = write(pinboard->to_backdrop_app, ok, strlen(ok));
2347 if (sent <= 0)
2348 {
2349 /* Remote app quit? Not an error. */
2350 abandon_backdrop_app(pinboard);
2351 break;
2352 }
2353 ok += sent;
2354 }
2355 }
2356
2357 static void backdrop_from_child(Pinboard *pinboard,
2358 int src, GdkInputCondition cond)
2359 {
2360 char buf[256];
2361 int got;
2362
2363 got = read(src, buf, sizeof(buf));
2364
2365 if (got <= 0)
2366 {
2367 if (got < 0)
2368 g_warning("backdrop_from_child: %s\n",
2369 g_strerror(errno));
2370 abandon_backdrop_app(pinboard);
2371 return;
2372 }
2373
2374 g_string_append_len(pinboard->input_buffer, buf, got);
2375
2376 while (pinboard->from_backdrop_app != -1)
2377 {
2378 int len;
2379 char *nl, *command;
2380
2381 nl = strchr(pinboard->input_buffer->str, '\n');
2382 if (!nl)
2383 return; /* Haven't got a whole line yet */
2384
2385 len = nl - pinboard->input_buffer->str;
2386 command = g_strndup(pinboard->input_buffer->str, len);
2387 g_string_erase(pinboard->input_buffer, 0, len + 1);
2388
2389 command_from_backdrop_app(pinboard, command);
2390
2391 g_free(command);
2392 }
2393 }
2394
2395 static void reload_backdrop(Pinboard *pinboard,
2396 const gchar *backdrop,
2397 BackdropStyle backdrop_style)
2398 {
2399 GtkStyle *style;
2400
2401 if (backdrop && backdrop_style == BACKDROP_PROGRAM)
2402 {
2403 const char *argv[] = {NULL, "--backdrop", NULL};
2404 GError *error = NULL;
2405
2406 g_return_if_fail(pinboard->to_backdrop_app == -1);
2407 g_return_if_fail(pinboard->from_backdrop_app == -1);
2408 g_return_if_fail(pinboard->input_tag == -1);
2409 g_return_if_fail(pinboard->input_buffer == NULL);
2410
2411 argv[0] = make_path(backdrop, "AppRun");
2412
2413 /* Run the program. It'll send us a SOAP message and we'll
2414 * get back here with a different style and image.
2415 */
2416
2417 if (g_spawn_async_with_pipes(NULL, (gchar **) argv, NULL,
2418 G_SPAWN_DO_NOT_REAP_CHILD |
2419 G_SPAWN_SEARCH_PATH,
2420 NULL, NULL, /* Child setup fn */
2421 NULL, /* Child PID */
2422 &pinboard->to_backdrop_app,
2423 &pinboard->from_backdrop_app,
2424 NULL, /* Standard error */
2425 &error))
2426 {
2427 pinboard->input_buffer = g_string_new(NULL);
2428 pinboard->input_tag = gdk_input_add_full(
2429 pinboard->from_backdrop_app,
2430 GDK_INPUT_READ,
2431 (GdkInputFunction) backdrop_from_child,
2432 pinboard, NULL);
2433 }
2434 else
2435 {
2436 delayed_error("%s", error ? error->message : "(null)");
2437 g_error_free(error);
2438 }
2439 return;
2440 }
2441
2442 /* Note: Copying a style does not ref the pixmaps! */
2443
2444 style = gtk_style_copy(gtk_widget_get_style(pinboard->window));
2445 style->bg_pixmap[GTK_STATE_NORMAL] = NULL;
2446
2447 if (backdrop)
2448 style->bg_pixmap[GTK_STATE_NORMAL] =
2449 load_backdrop(backdrop, backdrop_style);
2450
2451 gdk_color_parse(o_pinboard_bg_colour.value,
2452 &style->bg[GTK_STATE_NORMAL]);
2453
2454 gtk_widget_set_style(pinboard->window, style);
2455
2456 g_object_unref(style);
2457
2458 gtk_widget_queue_draw(pinboard->window);
2459
2460 /* Also update root window property (for transparent xterms, etc) */
2461 if (style->bg_pixmap[GTK_STATE_NORMAL])
2462 {
2463 XID id = GDK_DRAWABLE_XID(style->bg_pixmap[GTK_STATE_NORMAL]);
2464 gdk_property_change(gdk_get_default_root_window(),
2465 gdk_atom_intern("_XROOTPMAP_ID", FALSE),
2466 gdk_atom_intern("PIXMAP", FALSE),
2467 32, GDK_PROP_MODE_REPLACE,
2468 (guchar *) &id, 1);
2469 }
2470 else
2471 {
2472 gdk_property_delete(gdk_get_default_root_window(),
2473 gdk_atom_intern("_XROOTPMAP_ID", FALSE));
2474 }
2475 }
2476
2477 #define SEARCH_STEP 32
2478
2479 /* Search the area (omin, imin) to (omax, imax) for a free region the size of
2480 * 'rect' that doesn't overlap 'used'. Which of inner and outer is the
2481 * vertical axis depends on the configuration.
2482 *
2483 * id and od give the direction of the search (step size).
2484 *
2485 * Returns the start of the found region in inner/outer, or -1 if there is no
2486 * free space.
2487 */
2488 static void search_free(GdkRectangle *rect, GdkRegion *used,
2489 int *outer, int od, int omin, int omax,
2490 int *inner, int id, int imin, int imax)
2491 {
2492 *outer = od > 0 ? omin : omax;
2493 while (*outer >= omin && *outer <= omax)
2494 {
2495 *inner = id > 0 ? imin : imax;
2496 while (*inner >= imin && *inner <= imax)
2497 {
2498 if (gdk_region_rect_in(used, rect) ==
2499 GDK_OVERLAP_RECTANGLE_OUT)
2500 return;
2501 *inner += id;
2502 }
2503
2504 *outer += od;
2505 }
2506
2507 rect->x = -1;
2508 rect->y = -1;
2509 }
2510
2511 /* Search the width x height area from (x0, y0) for a free region of size
2512 * 'rect'. direction indicates whether to search rows or columns. dx, dy gives
2513 * the direction of the search.
2514 */
2515 static void search_free_area(GdkRectangle *rect, GdkRegion *used,
2516 int direction, int dx, int dy, int x0, int y0, int width, int height)
2517 {
2518 if (direction == DIR_VERT)
2519 {
2520 search_free(rect, used,
2521 &rect->x, dx, x0, width,
2522 &rect->y, dy, y0, height);
2523 }
2524 else
2525 {
2526 search_free(rect, used,
2527 &rect->y, dy, x0, height,
2528 &rect->x, dx, y0, width);
2529 }
2530 }
2531
2532 static gboolean search_free_xinerama(GdkRectangle *rect, GdkRegion *used,
2533 int direction, int dx, int dy, int rwidth, int rheight)
2534 {
2535 GdkRectangle *geom = &monitor_geom[get_monitor_under_pointer()];
2536
2537 search_free_area(rect, used, direction, dx, dy,
2538 geom->x, geom->y, geom->width - rwidth, geom->height - rheight);
2539 return rect->x != -1;
2540 }
2541
2542 /* Finds a free area on the pinboard large enough for the width and height
2543 * of the given rectangle, by filling in the x and y fields of 'rect'.
2544 * If 'old' is true, 'rect' has a previous position and we first check
2545 * if it is viable.
2546 * The search order respects user preferences.
2547 * If no area is free, returns any old area.
2548 */
2549 static void find_free_rect(Pinboard *pinboard, GdkRectangle *rect,
2550 gboolean old)
2551 {
2552 GdkRegion *used;
2553 GList *next;
2554 GdkRectangle used_rect;
2555 int dx = SEARCH_STEP, dy = SEARCH_STEP;
2556
2557 used = gdk_region_new();
2558
2559 panel_mark_used(used);
2560
2561 /* Subtract the no-go areas... */
2562
2563 if (o_top_margin.int_value > 0)
2564 {
2565 used_rect.x = 0;
2566 used_rect.y = 0;
2567 used_rect.width = gdk_screen_width();
2568 used_rect.height = o_top_margin.int_value;
2569 gdk_region_union_with_rect(used, &used_rect);
2570 }
2571
2572 if (o_bottom_margin.int_value > 0)
2573 {
2574 used_rect.x = 0;
2575 used_rect.y = gdk_screen_height() - o_bottom_margin.int_value;
2576 used_rect.width = gdk_screen_width();
2577 used_rect.height = o_bottom_margin.int_value;
2578 gdk_region_union_with_rect(used, &used_rect);
2579 }
2580
2581 if (o_left_margin.int_value > 0)
2582 {
2583 used_rect.x = 0;
2584 used_rect.y = 0;
2585 used_rect.width = o_left_margin.int_value;
2586 used_rect.height = gdk_screen_height();
2587 gdk_region_union_with_rect(used, &used_rect);
2588 }
2589
2590 if (o_right_margin.int_value > 0)
2591 {
2592 used_rect.x = gdk_screen_width() - o_right_margin.int_value;
2593 used_rect.y = 0;
2594 used_rect.width = o_right_margin.int_value;
2595 used_rect.height = gdk_screen_height();
2596 gdk_region_union_with_rect(used, &used_rect);
2597 }
2598
2599 /* Subtract the used areas... */
2600
2601 next = GTK_FIXED(pinboard->fixed)->children;
2602 for (; next; next = next->next)
2603 {
2604 GtkFixedChild *fix = (GtkFixedChild *) next->data;
2605
2606 if (!GTK_WIDGET_VISIBLE(fix->widget))
2607 continue;
2608
2609 used_rect.x = fix->x;
2610 used_rect.y = fix->y;
2611 used_rect.width = fix->widget->requisition.width;
2612 used_rect.height = fix->widget->requisition.height;
2613
2614 gdk_region_union_with_rect(used, &used_rect);
2615 }
2616
2617 /* Check the previous area */
2618 if(old) {
2619 if(gdk_region_rect_in(used, rect)==GDK_OVERLAP_RECTANGLE_OUT) {
2620 gdk_region_destroy(used);
2621 return;
2622 }
2623 }
2624
2625 /* Find the first free area (yes, this isn't exactly pretty, but
2626 * it works). If you know a better (fast!) algorithm, let me know!
2627 */
2628
2629 if (o_iconify_start.int_value == CORNER_TOP_RIGHT ||
2630 o_iconify_start.int_value == CORNER_BOTTOM_RIGHT)
2631 dx = -SEARCH_STEP;
2632
2633 if (o_iconify_start.int_value == CORNER_BOTTOM_LEFT ||
2634 o_iconify_start.int_value == CORNER_BOTTOM_RIGHT)
2635 dy = -SEARCH_STEP;
2636
2637 /* If pinboard covers more than one monitor, try to find free space on
2638 * monitor under pointer first, then whole screen if that fails */
2639 if (n_monitors == 1 || !search_free_xinerama(rect, used,
2640 o_iconify_dir.int_value, dx, dy, rect->width, rect->height))
2641 {
2642 search_free_area(rect, used, o_iconify_dir.int_value, dx, dy,
2643 0, 0, screen_width - rect->width, screen_height - rect->height);
2644 }
2645
2646 gdk_region_destroy(used);
2647
2648 if (rect->x == -1)
2649 {
2650 rect->x = 0;
2651 rect->y = 0;
2652 }
2653 }
2654
2655 /* Icon's size, shape or appearance has changed - update the display */
2656 static void pinboard_reshape_icon(Icon *icon)
2657 {
2658 PinIcon *pi = (PinIcon *) icon;
2659 int x = pi->x, y = pi->y;
2660
2661 set_size_and_style(pi);
2662 offset_from_centre(pi, &x, &y);
2663
2664 if (pi->win->allocation.x != x || pi->win->allocation.y != y)
2665 {
2666 fixed_move_fast(GTK_FIXED(current_pinboard->fixed),
2667 pi->win, x, y);
2668 }
2669
2670 /* Newer versions of GTK seem to need this, or the icon doesn't
2671 * get redrawn.
2672 */
2673 gtk_widget_queue_draw(pi->win);
2674 }
2675
2676 /* Sets the pinboard_font global from the option. Doesn't do anything else. */
2677 static void update_pinboard_font(void)
2678 {
2679 if (pinboard_font)
2680 pango_font_description_free(pinboard_font);
2681 pinboard_font = o_label_font.value[0] != '\0'
2682 ? pango_font_description_from_string(o_label_font.value)
2683 : NULL;
2684 }
2685
2686 static void radios_changed(Radios *radios, gpointer data)
2687 {
2688 GObject *dialog = G_OBJECT(data);
2689 DropBox *drop_box;
2690 const guchar *path;
2691
2692 g_return_if_fail(dialog != NULL);
2693
2694 drop_box = g_object_get_data(G_OBJECT(dialog), "rox-dropbox");
2695
2696 g_return_if_fail(radios != NULL);
2697 g_return_if_fail(drop_box != NULL);
2698 g_return_if_fail(current_pinboard != NULL);
2699
2700 if (current_pinboard->backdrop_style != BACKDROP_PROGRAM)
2701 {
2702 path = drop_box_get_path(drop_box);
2703 if (path)
2704 pinboard_set_backdrop(path, radios_get_value(radios));
2705 }
2706 }
2707
2708 static void update_radios(GtkWidget *dialog)
2709 {
2710 Radios *radios;
2711 GtkWidget *hbox;
2712
2713 g_return_if_fail(dialog != NULL);
2714
2715 radios = g_object_get_data(G_OBJECT(dialog), "rox-radios");
2716 hbox = g_object_get_data(G_OBJECT(dialog), "rox-radios-hbox");
2717
2718 g_return_if_fail(current_pinboard != NULL);
2719 g_return_if_fail(radios != NULL);
2720 g_return_if_fail(hbox != NULL);
2721
2722 switch (current_pinboard->backdrop_style)
2723 {
2724 case BACKDROP_TILE:
2725 case BACKDROP_STRETCH:
2726 case BACKDROP_SCALE:
2727 case BACKDROP_CENTRE:
2728 radios_set_value(radios,
2729 current_pinboard->backdrop_style);
2730 gtk_widget_set_sensitive(hbox, TRUE);
2731 break;
2732 default:
2733 gtk_widget_set_sensitive(hbox, FALSE);
2734 radios_set_value(radios, BACKDROP_TILE);
2735 break;
2736 }
2737 }