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 <string.h>
21
22 #include <gegl.h>
23 #include <gtk/gtk.h>
24
25 #include "libgimpbase/gimpbase.h"
26 #include "libgimpwidgets/gimpwidgets.h"
27
28 #include "widgets-types.h"
29
30 #include "core/gimp.h"
31 #include "core/gimpbuffer.h"
32 #include "core/gimpcontext.h"
33 #include "core/gimpimage.h"
34 #include "core/gimpimage-new.h"
35 #include "core/gimpimage-undo.h"
36 #include "core/gimplayer.h"
37 #include "core/gimplayermask.h"
38 #include "core/gimptoolinfo.h"
39
40 #include "file/file-open.h"
41
42 #include "gimpdnd.h"
43 #include "gimptoolbox.h"
44 #include "gimptoolbox-dnd.h"
45 #include "gimpwidgets-utils.h"
46
47 #include "gimp-intl.h"
48
49
50 /* local function prototypes */
51
52 static void gimp_toolbox_drop_uri_list (GtkWidget *widget,
53 gint x,
54 gint y,
55 GList *uri_list,
56 gpointer data);
57 static void gimp_toolbox_drop_drawable (GtkWidget *widget,
58 gint x,
59 gint y,
60 GimpViewable *viewable,
61 gpointer data);
62 static void gimp_toolbox_drop_tool (GtkWidget *widget,
63 gint x,
64 gint y,
65 GimpViewable *viewable,
66 gpointer data);
67 static void gimp_toolbox_drop_buffer (GtkWidget *widget,
68 gint x,
69 gint y,
70 GimpViewable *viewable,
71 gpointer data);
72 static void gimp_toolbox_drop_component (GtkWidget *widget,
73 gint x,
74 gint y,
75 GimpImage *image,
76 GimpChannelType component,
77 gpointer data);
78 static void gimp_toolbox_drop_pixbuf (GtkWidget *widget,
79 gint x,
80 gint y,
81 GdkPixbuf *pixbuf,
82 gpointer data);
83
84
85 /* public functions */
86
87 void
gimp_toolbox_dnd_init(GimpToolbox * toolbox,GtkWidget * vbox)88 gimp_toolbox_dnd_init (GimpToolbox *toolbox,
89 GtkWidget *vbox)
90 {
91 GimpContext *context = NULL;
92
93 g_return_if_fail (GIMP_IS_TOOLBOX (toolbox));
94 g_return_if_fail (GTK_IS_BOX (vbox));
95
96 context = gimp_toolbox_get_context (toolbox);
97
98 /* Before caling any dnd helper functions, setup the drag
99 * destination manually since we want to handle all drag events
100 * manually, otherwise we would not be able to give the drag handler
101 * a chance to handle drag events
102 */
103 gtk_drag_dest_set (vbox,
104 0, NULL, 0,
105 GDK_ACTION_COPY | GDK_ACTION_MOVE);
106
107 gimp_dnd_viewable_dest_add (vbox,
108 GIMP_TYPE_LAYER,
109 gimp_toolbox_drop_drawable,
110 context);
111 gimp_dnd_viewable_dest_add (vbox,
112 GIMP_TYPE_LAYER_MASK,
113 gimp_toolbox_drop_drawable,
114 context);
115 gimp_dnd_viewable_dest_add (vbox,
116 GIMP_TYPE_CHANNEL,
117 gimp_toolbox_drop_drawable,
118 context);
119 gimp_dnd_viewable_dest_add (vbox,
120 GIMP_TYPE_TOOL_INFO,
121 gimp_toolbox_drop_tool,
122 context);
123 gimp_dnd_viewable_dest_add (vbox,
124 GIMP_TYPE_BUFFER,
125 gimp_toolbox_drop_buffer,
126 context);
127 gimp_dnd_component_dest_add (vbox,
128 gimp_toolbox_drop_component,
129 context);
130 gimp_dnd_uri_list_dest_add (vbox,
131 gimp_toolbox_drop_uri_list,
132 context);
133 gimp_dnd_pixbuf_dest_add (vbox,
134 gimp_toolbox_drop_pixbuf,
135 context);
136 }
137
138
139 /* private functions */
140
141 static void
gimp_toolbox_drop_uri_list(GtkWidget * widget,gint x,gint y,GList * uri_list,gpointer data)142 gimp_toolbox_drop_uri_list (GtkWidget *widget,
143 gint x,
144 gint y,
145 GList *uri_list,
146 gpointer data)
147 {
148 GimpContext *context = GIMP_CONTEXT (data);
149 GList *list;
150
151 if (context->gimp->busy)
152 return;
153
154 for (list = uri_list; list; list = g_list_next (list))
155 {
156 GFile *file = g_file_new_for_uri (list->data);
157 GimpImage *image;
158 GimpPDBStatusType status;
159 GError *error = NULL;
160
161 image = file_open_with_display (context->gimp, context, NULL,
162 file, FALSE,
163 G_OBJECT (gtk_widget_get_screen (widget)),
164 gimp_widget_get_monitor (widget),
165 &status, &error);
166
167 if (! image && status != GIMP_PDB_CANCEL)
168 {
169 gimp_message (context->gimp, G_OBJECT (widget), GIMP_MESSAGE_ERROR,
170 _("Opening '%s' failed:\n\n%s"),
171 gimp_file_get_utf8_name (file), error->message);
172 g_clear_error (&error);
173 }
174
175 g_object_unref (file);
176 }
177 }
178
179 static void
gimp_toolbox_drop_drawable(GtkWidget * widget,gint x,gint y,GimpViewable * viewable,gpointer data)180 gimp_toolbox_drop_drawable (GtkWidget *widget,
181 gint x,
182 gint y,
183 GimpViewable *viewable,
184 gpointer data)
185 {
186 GimpContext *context = GIMP_CONTEXT (data);
187 GimpImage *new_image;
188
189 if (context->gimp->busy)
190 return;
191
192 new_image = gimp_image_new_from_drawable (context->gimp,
193 GIMP_DRAWABLE (viewable));
194 gimp_create_display (context->gimp, new_image, GIMP_UNIT_PIXEL, 1.0,
195 G_OBJECT (gtk_widget_get_screen (widget)),
196 gimp_widget_get_monitor (widget));
197 g_object_unref (new_image);
198 }
199
200 static void
gimp_toolbox_drop_tool(GtkWidget * widget,gint x,gint y,GimpViewable * viewable,gpointer data)201 gimp_toolbox_drop_tool (GtkWidget *widget,
202 gint x,
203 gint y,
204 GimpViewable *viewable,
205 gpointer data)
206 {
207 GimpContext *context = GIMP_CONTEXT (data);
208
209 if (context->gimp->busy)
210 return;
211
212 gimp_context_set_tool (context, GIMP_TOOL_INFO (viewable));
213 }
214
215 static void
gimp_toolbox_drop_buffer(GtkWidget * widget,gint x,gint y,GimpViewable * viewable,gpointer data)216 gimp_toolbox_drop_buffer (GtkWidget *widget,
217 gint x,
218 gint y,
219 GimpViewable *viewable,
220 gpointer data)
221 {
222 GimpContext *context = GIMP_CONTEXT (data);
223 GimpImage *image;
224
225 if (context->gimp->busy)
226 return;
227
228 image = gimp_image_new_from_buffer (context->gimp,
229 GIMP_BUFFER (viewable));
230 gimp_create_display (image->gimp, image, GIMP_UNIT_PIXEL, 1.0,
231 G_OBJECT (gtk_widget_get_screen (widget)),
232 gimp_widget_get_monitor (widget));
233 g_object_unref (image);
234 }
235
236 static void
gimp_toolbox_drop_component(GtkWidget * widget,gint x,gint y,GimpImage * image,GimpChannelType component,gpointer data)237 gimp_toolbox_drop_component (GtkWidget *widget,
238 gint x,
239 gint y,
240 GimpImage *image,
241 GimpChannelType component,
242 gpointer data)
243 {
244 GimpContext *context = GIMP_CONTEXT (data);
245 GimpImage *new_image;
246
247 if (context->gimp->busy)
248 return;
249
250 new_image = gimp_image_new_from_component (context->gimp,
251 image, component);
252 gimp_create_display (new_image->gimp, new_image, GIMP_UNIT_PIXEL, 1.0,
253 G_OBJECT (gtk_widget_get_screen (widget)),
254 gimp_widget_get_monitor (widget));
255 g_object_unref (new_image);
256 }
257
258 static void
gimp_toolbox_drop_pixbuf(GtkWidget * widget,gint x,gint y,GdkPixbuf * pixbuf,gpointer data)259 gimp_toolbox_drop_pixbuf (GtkWidget *widget,
260 gint x,
261 gint y,
262 GdkPixbuf *pixbuf,
263 gpointer data)
264 {
265 GimpContext *context = GIMP_CONTEXT (data);
266 GimpImage *new_image;
267
268 if (context->gimp->busy)
269 return;
270
271 new_image = gimp_image_new_from_pixbuf (context->gimp, pixbuf,
272 _("Dropped Buffer"));
273 gimp_create_display (new_image->gimp, new_image, GIMP_UNIT_PIXEL, 1.0,
274 G_OBJECT (gtk_widget_get_screen (widget)),
275 gimp_widget_get_monitor (widget));
276 g_object_unref (new_image);
277 }
278