1 /* GIMP - The GNU Image Manipulation Program
2 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
3 *
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <https://www.gnu.org/licenses/>.
16 */
17
18 #include "config.h"
19
20 #include <gegl.h>
21 #include <gtk/gtk.h>
22
23 #include "display-types.h"
24
25 #include "core/gimp.h"
26 #include "core/gimpcontainer.h"
27 #include "core/gimpcontext.h"
28 #include "core/gimpimage.h"
29 #include "core/gimplist.h"
30
31 #include "gimpdisplay.h"
32 #include "gimpdisplay-foreach.h"
33 #include "gimpdisplayshell.h"
34 #include "gimpdisplayshell-cursor.h"
35
36
37 gboolean
gimp_displays_dirty(Gimp * gimp)38 gimp_displays_dirty (Gimp *gimp)
39 {
40 GList *list;
41
42 g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
43
44 for (list = gimp_get_display_iter (gimp);
45 list;
46 list = g_list_next (list))
47 {
48 GimpDisplay *display = list->data;
49 GimpImage *image = gimp_display_get_image (display);
50
51 if (image && gimp_image_is_dirty (image))
52 return TRUE;
53 }
54
55 return FALSE;
56 }
57
58 static void
gimp_displays_image_dirty_callback(GimpImage * image,GimpDirtyMask dirty_mask,GimpContainer * container)59 gimp_displays_image_dirty_callback (GimpImage *image,
60 GimpDirtyMask dirty_mask,
61 GimpContainer *container)
62 {
63 if (gimp_image_is_dirty (image) &&
64 gimp_image_get_display_count (image) > 0 &&
65 ! gimp_container_have (container, GIMP_OBJECT (image)))
66 gimp_container_add (container, GIMP_OBJECT (image));
67 }
68
69 static void
gimp_displays_dirty_images_disconnect(GimpContainer * dirty_container,GimpContainer * global_container)70 gimp_displays_dirty_images_disconnect (GimpContainer *dirty_container,
71 GimpContainer *global_container)
72 {
73 GQuark handler;
74
75 handler = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (dirty_container),
76 "clean-handler"));
77 gimp_container_remove_handler (global_container, handler);
78
79 handler = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (dirty_container),
80 "dirty-handler"));
81 gimp_container_remove_handler (global_container, handler);
82 }
83
84 static void
gimp_displays_image_clean_callback(GimpImage * image,GimpDirtyMask dirty_mask,GimpContainer * container)85 gimp_displays_image_clean_callback (GimpImage *image,
86 GimpDirtyMask dirty_mask,
87 GimpContainer *container)
88 {
89 if (! gimp_image_is_dirty (image))
90 gimp_container_remove (container, GIMP_OBJECT (image));
91 }
92
93 GimpContainer *
gimp_displays_get_dirty_images(Gimp * gimp)94 gimp_displays_get_dirty_images (Gimp *gimp)
95 {
96 g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
97
98 if (gimp_displays_dirty (gimp))
99 {
100 GimpContainer *container = gimp_list_new_weak (GIMP_TYPE_IMAGE, FALSE);
101 GList *list;
102 GQuark handler;
103
104 handler =
105 gimp_container_add_handler (gimp->images, "clean",
106 G_CALLBACK (gimp_displays_image_dirty_callback),
107 container);
108 g_object_set_data (G_OBJECT (container), "clean-handler",
109 GINT_TO_POINTER (handler));
110
111 handler =
112 gimp_container_add_handler (gimp->images, "dirty",
113 G_CALLBACK (gimp_displays_image_dirty_callback),
114 container);
115 g_object_set_data (G_OBJECT (container), "dirty-handler",
116 GINT_TO_POINTER (handler));
117
118 g_signal_connect_object (container, "disconnect",
119 G_CALLBACK (gimp_displays_dirty_images_disconnect),
120 G_OBJECT (gimp->images), 0);
121
122 gimp_container_add_handler (container, "clean",
123 G_CALLBACK (gimp_displays_image_clean_callback),
124 container);
125 gimp_container_add_handler (container, "dirty",
126 G_CALLBACK (gimp_displays_image_clean_callback),
127 container);
128
129 for (list = gimp_get_image_iter (gimp);
130 list;
131 list = g_list_next (list))
132 {
133 GimpImage *image = list->data;
134
135 if (gimp_image_is_dirty (image) &&
136 gimp_image_get_display_count (image) > 0)
137 gimp_container_add (container, GIMP_OBJECT (image));
138 }
139
140 return container;
141 }
142
143 return NULL;
144 }
145
146 /**
147 * gimp_displays_delete:
148 * @gimp:
149 *
150 * Calls gimp_display_delete() an all displays in the display list.
151 * This closes all displays, including the first one which is usually
152 * kept open.
153 */
154 void
gimp_displays_delete(Gimp * gimp)155 gimp_displays_delete (Gimp *gimp)
156 {
157 /* this removes the GimpDisplay from the list, so do a while loop
158 * "around" the first element to get them all
159 */
160 while (! gimp_container_is_empty (gimp->displays))
161 {
162 GimpDisplay *display = gimp_get_display_iter (gimp)->data;
163
164 gimp_display_delete (display);
165 }
166 }
167
168 /**
169 * gimp_displays_close:
170 * @gimp:
171 *
172 * Calls gimp_display_close() an all displays in the display list. The
173 * first display will remain open without an image.
174 */
175 void
gimp_displays_close(Gimp * gimp)176 gimp_displays_close (Gimp *gimp)
177 {
178 GList *list;
179 GList *iter;
180
181 g_return_if_fail (GIMP_IS_GIMP (gimp));
182
183 list = g_list_copy (gimp_get_display_iter (gimp));
184
185 for (iter = list; iter; iter = g_list_next (iter))
186 {
187 GimpDisplay *display = iter->data;
188
189 gimp_display_close (display);
190 }
191
192 g_list_free (list);
193 }
194
195 void
gimp_displays_reconnect(Gimp * gimp,GimpImage * old,GimpImage * new)196 gimp_displays_reconnect (Gimp *gimp,
197 GimpImage *old,
198 GimpImage *new)
199 {
200 GList *contexts = NULL;
201 GList *list;
202
203 g_return_if_fail (GIMP_IS_GIMP (gimp));
204 g_return_if_fail (GIMP_IS_IMAGE (old));
205 g_return_if_fail (GIMP_IS_IMAGE (new));
206
207 /* check which contexts refer to old_image */
208 for (list = gimp->context_list; list; list = g_list_next (list))
209 {
210 GimpContext *context = list->data;
211
212 if (gimp_context_get_image (context) == old)
213 contexts = g_list_prepend (contexts, list->data);
214 }
215
216 /* set the new_image on the remembered contexts (in reverse order,
217 * since older contexts are usually the parents of newer
218 * ones). Also, update the contexts before the displays, or we
219 * might run into menu update functions that would see an
220 * inconsistent state (display = new, context = old), and thus
221 * inadvertently call actions as if the user had selected a menu
222 * item.
223 */
224 g_list_foreach (contexts, (GFunc) gimp_context_set_image, new);
225 g_list_free (contexts);
226
227 for (list = gimp_get_display_iter (gimp);
228 list;
229 list = g_list_next (list))
230 {
231 GimpDisplay *display = list->data;
232
233 if (gimp_display_get_image (display) == old)
234 gimp_display_set_image (display, new);
235 }
236 }
237
238 gint
gimp_displays_get_num_visible(Gimp * gimp)239 gimp_displays_get_num_visible (Gimp *gimp)
240 {
241 GList *list;
242 gint visible = 0;
243
244 g_return_val_if_fail (GIMP_IS_GIMP (gimp), 0);
245
246 for (list = gimp_get_display_iter (gimp);
247 list;
248 list = g_list_next (list))
249 {
250 GimpDisplay *display = list->data;
251 GimpDisplayShell *shell = gimp_display_get_shell (display);
252
253 if (gtk_widget_is_drawable (GTK_WIDGET (shell)))
254 {
255 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (shell));
256
257 if (GTK_IS_WINDOW (toplevel))
258 {
259 GdkWindow *window = gtk_widget_get_window (toplevel);
260 GdkWindowState state = gdk_window_get_state (window);
261
262 if ((state & (GDK_WINDOW_STATE_WITHDRAWN |
263 GDK_WINDOW_STATE_ICONIFIED)) == 0)
264 {
265 visible++;
266 }
267 }
268 }
269 }
270
271 return visible;
272 }
273
274 void
gimp_displays_set_busy(Gimp * gimp)275 gimp_displays_set_busy (Gimp *gimp)
276 {
277 GList *list;
278
279 g_return_if_fail (GIMP_IS_GIMP (gimp));
280
281 for (list = gimp_get_display_iter (gimp);
282 list;
283 list = g_list_next (list))
284 {
285 GimpDisplayShell *shell =
286 gimp_display_get_shell (GIMP_DISPLAY (list->data));
287
288 gimp_display_shell_set_override_cursor (shell, (GimpCursorType) GDK_WATCH);
289 }
290 }
291
292 void
gimp_displays_unset_busy(Gimp * gimp)293 gimp_displays_unset_busy (Gimp *gimp)
294 {
295 GList *list;
296
297 g_return_if_fail (GIMP_IS_GIMP (gimp));
298
299 for (list = gimp_get_display_iter (gimp);
300 list;
301 list = g_list_next (list))
302 {
303 GimpDisplayShell *shell =
304 gimp_display_get_shell (GIMP_DISPLAY (list->data));
305
306 gimp_display_shell_unset_override_cursor (shell);
307 }
308 }
309