1 /* testimage.c
2 * Copyright (C) 2004 Red Hat, Inc.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library 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 GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
18 */
19
20 #include <gtk/gtk.h>
21 #include <gio/gio.h>
22
23 static void
drag_begin(GtkWidget * widget,GdkDragContext * context,gpointer data)24 drag_begin (GtkWidget *widget,
25 GdkDragContext *context,
26 gpointer data)
27 {
28 GtkWidget *image = GTK_WIDGET (data);
29
30 GdkPixbuf *pixbuf = gtk_image_get_pixbuf (GTK_IMAGE (image));
31
32 gtk_drag_set_icon_pixbuf (context, pixbuf, -2, -2);
33 }
34
35 void
drag_data_get(GtkWidget * widget,GdkDragContext * context,GtkSelectionData * selection_data,guint info,guint time,gpointer data)36 drag_data_get (GtkWidget *widget,
37 GdkDragContext *context,
38 GtkSelectionData *selection_data,
39 guint info,
40 guint time,
41 gpointer data)
42 {
43 GtkWidget *image = GTK_WIDGET (data);
44
45 GdkPixbuf *pixbuf = gtk_image_get_pixbuf (GTK_IMAGE (image));
46
47 gtk_selection_data_set_pixbuf (selection_data, pixbuf);
48 }
49
50 static void
drag_data_received(GtkWidget * widget,GdkDragContext * context,gint x,gint y,GtkSelectionData * selection_data,guint info,guint32 time,gpointer data)51 drag_data_received (GtkWidget *widget,
52 GdkDragContext *context,
53 gint x,
54 gint y,
55 GtkSelectionData *selection_data,
56 guint info,
57 guint32 time,
58 gpointer data)
59 {
60 GtkWidget *image = GTK_WIDGET (data);
61
62 GdkPixbuf *pixbuf;
63
64 if (selection_data->length < 0)
65 return;
66
67 pixbuf = gtk_selection_data_get_pixbuf (selection_data);
68
69 gtk_image_set_from_pixbuf (GTK_IMAGE (image), pixbuf);
70 }
71
72 static gboolean
idle_func(gpointer data)73 idle_func (gpointer data)
74 {
75 g_print ("keep me busy\n");
76
77 return TRUE;
78 }
79
80 static gboolean
anim_image_expose(GtkWidget * widget,GdkEventExpose * eevent,gpointer data)81 anim_image_expose (GtkWidget *widget,
82 GdkEventExpose *eevent,
83 gpointer data)
84 {
85 g_print ("start busyness\n");
86
87 g_signal_handlers_disconnect_by_func (widget, anim_image_expose, data);
88
89 /* produce high load */
90 g_idle_add_full (G_PRIORITY_DEFAULT,
91 idle_func, NULL, NULL);
92
93 return FALSE;
94 }
95
96 int
main(int argc,char ** argv)97 main (int argc, char **argv)
98 {
99 GtkWidget *window, *table;
100 GtkWidget *label, *image, *box;
101 GtkIconTheme *theme;
102 GdkPixbuf *pixbuf;
103 GtkIconSet *iconset;
104 GtkIconSource *iconsource;
105 gchar *icon_name = "gnome-terminal";
106 gchar *anim_filename = NULL;
107 GIcon *icon;
108 GFile *file;
109
110 gtk_init (&argc, &argv);
111
112 if (argc > 1)
113 icon_name = argv[1];
114
115 if (argc > 2)
116 anim_filename = argv[2];
117
118 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
119 table = gtk_table_new (6, 3, FALSE);
120 gtk_container_add (GTK_CONTAINER (window), table);
121
122 label = gtk_label_new ("symbolic size");
123 gtk_table_attach (GTK_TABLE (table), label, 1, 2, 0, 1,
124 0, 0, 5, 5);
125 label = gtk_label_new ("fixed size");
126 gtk_table_attach (GTK_TABLE (table), label, 2, 3, 0, 1,
127 0, 0, 5, 5);
128
129 label = gtk_label_new ("GTK_IMAGE_PIXBUF");
130 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 1, 2);
131
132 theme = gtk_icon_theme_get_default ();
133 pixbuf = gtk_icon_theme_load_icon (theme, icon_name, 48, 0, NULL);
134 image = gtk_image_new_from_pixbuf (pixbuf);
135 box = gtk_event_box_new ();
136 gtk_container_add (GTK_CONTAINER (box), image);
137 gtk_table_attach_defaults (GTK_TABLE (table), box, 2, 3, 1, 2);
138
139 gtk_drag_source_set (box, GDK_BUTTON1_MASK,
140 NULL, 0,
141 GDK_ACTION_COPY);
142 gtk_drag_source_add_image_targets (box);
143 g_signal_connect (box, "drag_begin", G_CALLBACK (drag_begin), image);
144 g_signal_connect (box, "drag_data_get", G_CALLBACK (drag_data_get), image);
145
146 gtk_drag_dest_set (box,
147 GTK_DEST_DEFAULT_MOTION |
148 GTK_DEST_DEFAULT_HIGHLIGHT |
149 GTK_DEST_DEFAULT_DROP,
150 NULL, 0, GDK_ACTION_COPY);
151 gtk_drag_dest_add_image_targets (box);
152 g_signal_connect (box, "drag_data_received",
153 G_CALLBACK (drag_data_received), image);
154
155 label = gtk_label_new ("GTK_IMAGE_STOCK");
156 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 2, 3);
157
158 image = gtk_image_new_from_stock (GTK_STOCK_REDO, GTK_ICON_SIZE_DIALOG);
159 gtk_table_attach_defaults (GTK_TABLE (table), image, 1, 2, 2, 3);
160
161 label = gtk_label_new ("GTK_IMAGE_ICON_SET");
162 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 3, 4);
163
164 iconsource = gtk_icon_source_new ();
165 gtk_icon_source_set_icon_name (iconsource, icon_name);
166 iconset = gtk_icon_set_new ();
167 gtk_icon_set_add_source (iconset, iconsource);
168 image = gtk_image_new_from_icon_set (iconset, GTK_ICON_SIZE_DIALOG);
169 gtk_table_attach_defaults (GTK_TABLE (table), image, 1, 2, 3, 4);
170
171 label = gtk_label_new ("GTK_IMAGE_ICON_NAME");
172 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 4, 5);
173 image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_DIALOG);
174 gtk_table_attach_defaults (GTK_TABLE (table), image, 1, 2, 4, 5);
175 image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_DIALOG);
176 gtk_image_set_pixel_size (GTK_IMAGE (image), 30);
177 gtk_table_attach_defaults (GTK_TABLE (table), image, 2, 3, 4, 5);
178
179 label = gtk_label_new ("GTK_IMAGE_GICON");
180 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 5, 6);
181 icon = g_themed_icon_new_with_default_fallbacks ("folder-remote");
182 image = gtk_image_new_from_gicon (icon, GTK_ICON_SIZE_DIALOG);
183 g_object_unref (icon);
184 gtk_table_attach_defaults (GTK_TABLE (table), image, 1, 2, 5, 6);
185 file = g_file_new_for_path ("apple-red.png");
186 icon = g_file_icon_new (file);
187 image = gtk_image_new_from_gicon (icon, GTK_ICON_SIZE_DIALOG);
188 g_object_unref (icon);
189 gtk_image_set_pixel_size (GTK_IMAGE (image), 30);
190 gtk_table_attach_defaults (GTK_TABLE (table), image, 2, 3, 5, 6);
191
192
193 if (anim_filename)
194 {
195 label = gtk_label_new ("GTK_IMAGE_ANIMATION (from file)");
196 gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 5, 6);
197 image = gtk_image_new_from_file (anim_filename);
198 gtk_image_set_pixel_size (GTK_IMAGE (image), 30);
199 gtk_table_attach_defaults (GTK_TABLE (table), image, 2, 3, 5, 6);
200
201 /* produce high load */
202 g_signal_connect_after (image, "expose-event",
203 G_CALLBACK (anim_image_expose),
204 NULL);
205 }
206
207 gtk_widget_show_all (window);
208
209 gtk_main ();
210
211 return 0;
212 }
213