1 /* GIMP - The GNU Image Manipulation Program
2 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
3 *
4 * gimpchanneltreeview.c
5 * Copyright (C) 2001-2009 Michael Natterer <mitch@gimp.org>
6 *
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
19 */
20
21 #include "config.h"
22
23 #include <gegl.h>
24 #include <gtk/gtk.h>
25
26 #include "libgimpbase/gimpbase.h"
27 #include "libgimpcolor/gimpcolor.h"
28 #include "libgimpwidgets/gimpwidgets.h"
29
30 #include "widgets-types.h"
31
32 #include "core/gimpchannel.h"
33 #include "core/gimpcontainer.h"
34 #include "core/gimpimage.h"
35 #include "core/gimpimage-undo.h"
36 #include "core/gimplayer.h"
37 #include "core/gimplayermask.h"
38
39 #include "gimpactiongroup.h"
40 #include "gimpchanneltreeview.h"
41 #include "gimpcomponenteditor.h"
42 #include "gimpcontainerview.h"
43 #include "gimpdnd.h"
44 #include "gimpdocked.h"
45 #include "gimphelp-ids.h"
46 #include "gimpuimanager.h"
47 #include "gimpwidgets-utils.h"
48
49 #include "gimp-intl.h"
50
51
52 struct _GimpChannelTreeViewPrivate
53 {
54 GtkWidget *component_editor;
55
56 GtkWidget *toselection_button;
57 };
58
59
60 static void gimp_channel_tree_view_view_iface_init (GimpContainerViewInterface *iface);
61
62 static void gimp_channel_tree_view_constructed (GObject *object);
63
64 static void gimp_channel_tree_view_drop_viewable (GimpContainerTreeView *view,
65 GimpViewable *src_viewable,
66 GimpViewable *dest_viewable,
67 GtkTreeViewDropPosition drop_pos);
68 static void gimp_channel_tree_view_drop_component (GimpContainerTreeView *tree_view,
69 GimpImage *image,
70 GimpChannelType component,
71 GimpViewable *dest_viewable,
72 GtkTreeViewDropPosition drop_pos);
73 static void gimp_channel_tree_view_set_image (GimpItemTreeView *item_view,
74 GimpImage *image);
75 static GimpItem * gimp_channel_tree_view_item_new (GimpImage *image);
76
77 static void gimp_channel_tree_view_set_context (GimpContainerView *view,
78 GimpContext *context);
79 static void gimp_channel_tree_view_set_view_size (GimpContainerView *view);
80
81
82 G_DEFINE_TYPE_WITH_CODE (GimpChannelTreeView, gimp_channel_tree_view,
83 GIMP_TYPE_DRAWABLE_TREE_VIEW,
84 G_ADD_PRIVATE (GimpChannelTreeView)
85 G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONTAINER_VIEW,
86 gimp_channel_tree_view_view_iface_init))
87
88 #define parent_class gimp_channel_tree_view_parent_class
89
90 static GimpContainerViewInterface *parent_view_iface = NULL;
91
92
93 static void
gimp_channel_tree_view_class_init(GimpChannelTreeViewClass * klass)94 gimp_channel_tree_view_class_init (GimpChannelTreeViewClass *klass)
95 {
96 GObjectClass *object_class = G_OBJECT_CLASS (klass);
97 GimpContainerTreeViewClass *view_class = GIMP_CONTAINER_TREE_VIEW_CLASS (klass);
98 GimpItemTreeViewClass *iv_class = GIMP_ITEM_TREE_VIEW_CLASS (klass);
99
100 object_class->constructed = gimp_channel_tree_view_constructed;
101
102 view_class->drop_viewable = gimp_channel_tree_view_drop_viewable;
103 view_class->drop_component = gimp_channel_tree_view_drop_component;
104
105 iv_class->set_image = gimp_channel_tree_view_set_image;
106
107 iv_class->item_type = GIMP_TYPE_CHANNEL;
108 iv_class->signal_name = "active-channel-changed";
109
110 iv_class->get_container = gimp_image_get_channels;
111 iv_class->get_active_item = (GimpGetItemFunc) gimp_image_get_active_channel;
112 iv_class->set_active_item = (GimpSetItemFunc) gimp_image_set_active_channel;
113 iv_class->add_item = (GimpAddItemFunc) gimp_image_add_channel;
114 iv_class->remove_item = (GimpRemoveItemFunc) gimp_image_remove_channel;
115 iv_class->new_item = gimp_channel_tree_view_item_new;
116
117 iv_class->action_group = "channels";
118 iv_class->activate_action = "channels-edit-attributes";
119 iv_class->new_action = "channels-new";
120 iv_class->new_default_action = "channels-new-last-values";
121 iv_class->raise_action = "channels-raise";
122 iv_class->raise_top_action = "channels-raise-to-top";
123 iv_class->lower_action = "channels-lower";
124 iv_class->lower_bottom_action = "channels-lower-to-bottom";
125 iv_class->duplicate_action = "channels-duplicate";
126 iv_class->delete_action = "channels-delete";
127 iv_class->lock_content_help_id = GIMP_HELP_CHANNEL_LOCK_PIXELS;
128 iv_class->lock_position_help_id = GIMP_HELP_CHANNEL_LOCK_POSITION;
129 }
130
131 static void
gimp_channel_tree_view_view_iface_init(GimpContainerViewInterface * view_iface)132 gimp_channel_tree_view_view_iface_init (GimpContainerViewInterface *view_iface)
133 {
134 parent_view_iface = g_type_interface_peek_parent (view_iface);
135
136 view_iface->set_context = gimp_channel_tree_view_set_context;
137 view_iface->set_view_size = gimp_channel_tree_view_set_view_size;
138 }
139
140 static void
gimp_channel_tree_view_init(GimpChannelTreeView * view)141 gimp_channel_tree_view_init (GimpChannelTreeView *view)
142 {
143 view->priv = gimp_channel_tree_view_get_instance_private (view);
144
145 view->priv->component_editor = NULL;
146 view->priv->toselection_button = NULL;
147 }
148
149 static void
gimp_channel_tree_view_constructed(GObject * object)150 gimp_channel_tree_view_constructed (GObject *object)
151 {
152 GimpChannelTreeView *view = GIMP_CHANNEL_TREE_VIEW (object);
153 GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (object);
154 GdkModifierType extend_mask;
155 GdkModifierType modify_mask;
156
157 G_OBJECT_CLASS (parent_class)->constructed (object);
158
159 extend_mask = gtk_widget_get_modifier_mask (GTK_WIDGET (object),
160 GDK_MODIFIER_INTENT_EXTEND_SELECTION);
161 modify_mask = gtk_widget_get_modifier_mask (GTK_WIDGET (object),
162 GDK_MODIFIER_INTENT_MODIFY_SELECTION);
163
164 gimp_dnd_viewable_dest_add (GTK_WIDGET (tree_view->view), GIMP_TYPE_LAYER,
165 NULL, tree_view);
166 gimp_dnd_viewable_dest_add (GTK_WIDGET (tree_view->view), GIMP_TYPE_LAYER_MASK,
167 NULL, tree_view);
168 gimp_dnd_component_dest_add (GTK_WIDGET (tree_view->view),
169 NULL, tree_view);
170
171 view->priv->toselection_button =
172 gimp_editor_add_action_button (GIMP_EDITOR (view), "channels",
173 "channels-selection-replace",
174 "channels-selection-add",
175 extend_mask,
176 "channels-selection-subtract",
177 modify_mask,
178 "channels-selection-intersect",
179 extend_mask | modify_mask,
180 NULL);
181 gimp_container_view_enable_dnd (GIMP_CONTAINER_VIEW (view),
182 GTK_BUTTON (view->priv->toselection_button),
183 GIMP_TYPE_CHANNEL);
184 gtk_box_reorder_child (gimp_editor_get_button_box (GIMP_EDITOR (view)),
185 view->priv->toselection_button, 4);
186 }
187
188
189 /* GimpContainerTreeView methods */
190
191 static void
gimp_channel_tree_view_drop_viewable(GimpContainerTreeView * tree_view,GimpViewable * src_viewable,GimpViewable * dest_viewable,GtkTreeViewDropPosition drop_pos)192 gimp_channel_tree_view_drop_viewable (GimpContainerTreeView *tree_view,
193 GimpViewable *src_viewable,
194 GimpViewable *dest_viewable,
195 GtkTreeViewDropPosition drop_pos)
196 {
197 GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (tree_view);
198 GimpImage *image = gimp_item_tree_view_get_image (item_view);
199 GimpItemTreeViewClass *item_view_class;
200
201 item_view_class = GIMP_ITEM_TREE_VIEW_GET_CLASS (item_view);
202
203 if (GIMP_IS_DRAWABLE (src_viewable) &&
204 (image != gimp_item_get_image (GIMP_ITEM (src_viewable)) ||
205 G_TYPE_FROM_INSTANCE (src_viewable) != item_view_class->item_type))
206 {
207 GimpItem *new_item;
208 GimpItem *parent;
209 gint index;
210
211 index = gimp_item_tree_view_get_drop_index (item_view, dest_viewable,
212 drop_pos,
213 (GimpViewable **) &parent);
214
215 new_item = gimp_item_convert (GIMP_ITEM (src_viewable),
216 gimp_item_tree_view_get_image (item_view),
217 item_view_class->item_type);
218
219 gimp_item_set_linked (new_item, FALSE, FALSE);
220
221 item_view_class->add_item (image, new_item, parent, index, TRUE);
222
223 gimp_image_flush (image);
224
225 return;
226 }
227
228 GIMP_CONTAINER_TREE_VIEW_CLASS (parent_class)->drop_viewable (tree_view,
229 src_viewable,
230 dest_viewable,
231 drop_pos);
232 }
233
234 static void
gimp_channel_tree_view_drop_component(GimpContainerTreeView * tree_view,GimpImage * src_image,GimpChannelType component,GimpViewable * dest_viewable,GtkTreeViewDropPosition drop_pos)235 gimp_channel_tree_view_drop_component (GimpContainerTreeView *tree_view,
236 GimpImage *src_image,
237 GimpChannelType component,
238 GimpViewable *dest_viewable,
239 GtkTreeViewDropPosition drop_pos)
240 {
241 GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (tree_view);
242 GimpImage *image = gimp_item_tree_view_get_image (item_view);
243 GimpItem *new_item;
244 GimpChannel *parent;
245 gint index;
246 const gchar *desc;
247 gchar *name;
248
249 index = gimp_item_tree_view_get_drop_index (item_view, dest_viewable,
250 drop_pos,
251 (GimpViewable **) &parent);
252
253 gimp_enum_get_value (GIMP_TYPE_CHANNEL_TYPE, component,
254 NULL, NULL, &desc, NULL);
255 name = g_strdup_printf (_("%s Channel Copy"), desc);
256
257 new_item = GIMP_ITEM (gimp_channel_new_from_component (src_image, component,
258 name, NULL));
259
260 /* copied components are invisible by default so subsequent copies
261 * of components don't affect each other
262 */
263 gimp_item_set_visible (new_item, FALSE, FALSE);
264
265 g_free (name);
266
267 if (src_image != image)
268 GIMP_ITEM_GET_CLASS (new_item)->convert (new_item, image,
269 GIMP_TYPE_CHANNEL);
270
271 gimp_image_add_channel (image, GIMP_CHANNEL (new_item), parent, index, TRUE);
272
273 gimp_image_flush (image);
274 }
275
276
277 /* GimpItemTreeView methods */
278
279 static void
gimp_channel_tree_view_set_image(GimpItemTreeView * item_view,GimpImage * image)280 gimp_channel_tree_view_set_image (GimpItemTreeView *item_view,
281 GimpImage *image)
282 {
283 GimpChannelTreeView *channel_view = GIMP_CHANNEL_TREE_VIEW (item_view);
284
285 if (! channel_view->priv->component_editor)
286 {
287 GimpContainerView *view = GIMP_CONTAINER_VIEW (item_view);
288 gint view_size;
289
290 view_size = gimp_container_view_get_view_size (view, NULL);
291
292 channel_view->priv->component_editor =
293 gimp_component_editor_new (view_size,
294 gimp_editor_get_menu_factory (GIMP_EDITOR (item_view)));
295 gimp_docked_set_context (GIMP_DOCKED (channel_view->priv->component_editor),
296 gimp_container_view_get_context (view));
297 gtk_box_pack_start (GTK_BOX (item_view), channel_view->priv->component_editor,
298 FALSE, FALSE, 0);
299 gtk_box_reorder_child (GTK_BOX (item_view),
300 channel_view->priv->component_editor, 0);
301 }
302
303 if (! image)
304 gtk_widget_hide (channel_view->priv->component_editor);
305
306 gimp_image_editor_set_image (GIMP_IMAGE_EDITOR (channel_view->priv->component_editor),
307 image);
308
309 GIMP_ITEM_TREE_VIEW_CLASS (parent_class)->set_image (item_view, image);
310
311 if (gimp_item_tree_view_get_image (item_view))
312 gtk_widget_show (channel_view->priv->component_editor);
313 }
314
315 static GimpItem *
gimp_channel_tree_view_item_new(GimpImage * image)316 gimp_channel_tree_view_item_new (GimpImage *image)
317 {
318 GimpChannel *new_channel;
319 GimpRGB color;
320
321 gimp_rgba_set (&color, 0.0, 0.0, 0.0, 0.5);
322
323 gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_PASTE,
324 _("New Channel"));
325
326 new_channel = gimp_channel_new (image,
327 gimp_image_get_width (image),
328 gimp_image_get_height (image),
329 _("Channel"), &color);
330
331 gimp_image_add_channel (image, new_channel,
332 GIMP_IMAGE_ACTIVE_PARENT, -1, TRUE);
333
334 gimp_image_undo_group_end (image);
335
336 return GIMP_ITEM (new_channel);
337 }
338
339
340 /* GimpContainerView methods */
341
342 static void
gimp_channel_tree_view_set_context(GimpContainerView * view,GimpContext * context)343 gimp_channel_tree_view_set_context (GimpContainerView *view,
344 GimpContext *context)
345 {
346 GimpChannelTreeView *channel_view = GIMP_CHANNEL_TREE_VIEW (view);
347
348 parent_view_iface->set_context (view, context);
349
350 if (channel_view->priv->component_editor)
351 gimp_docked_set_context (GIMP_DOCKED (channel_view->priv->component_editor),
352 context);
353 }
354
355 static void
gimp_channel_tree_view_set_view_size(GimpContainerView * view)356 gimp_channel_tree_view_set_view_size (GimpContainerView *view)
357 {
358 GimpChannelTreeView *channel_view = GIMP_CHANNEL_TREE_VIEW (view);
359 gint view_size;
360
361 parent_view_iface->set_view_size (view);
362
363 view_size = gimp_container_view_get_view_size (view, NULL);
364
365 if (channel_view->priv->component_editor)
366 gimp_component_editor_set_view_size (GIMP_COMPONENT_EDITOR (channel_view->priv->component_editor),
367 view_size);
368 }
369