mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-09-19 21:40:22 +00:00
220 lines
6.5 KiB
C
220 lines
6.5 KiB
C
/* testimage.c
|
|
* Copyright (C) 2004 Red Hat, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <gtk/gtk.h>
|
|
#include <gio/gio.h>
|
|
|
|
static void
|
|
drag_begin (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
gpointer data)
|
|
{
|
|
GtkWidget *image = GTK_WIDGET (data);
|
|
|
|
GdkPixbuf *pixbuf = gtk_image_get_pixbuf (GTK_IMAGE (image));
|
|
|
|
gtk_drag_set_icon_pixbuf (context, pixbuf, -2, -2);
|
|
}
|
|
|
|
void
|
|
drag_data_get (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
GtkSelectionData *selection_data,
|
|
guint info,
|
|
guint time,
|
|
gpointer data)
|
|
{
|
|
GtkWidget *image = GTK_WIDGET (data);
|
|
|
|
GdkPixbuf *pixbuf = gtk_image_get_pixbuf (GTK_IMAGE (image));
|
|
|
|
gtk_selection_data_set_pixbuf (selection_data, pixbuf);
|
|
}
|
|
|
|
static void
|
|
drag_data_received (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
gint x,
|
|
gint y,
|
|
GtkSelectionData *selection_data,
|
|
guint info,
|
|
guint32 time,
|
|
gpointer data)
|
|
{
|
|
GtkWidget *image = GTK_WIDGET (data);
|
|
|
|
GdkPixbuf *pixbuf;
|
|
|
|
if (gtk_selection_data_get_length (selection_data) < 0)
|
|
return;
|
|
|
|
pixbuf = gtk_selection_data_get_pixbuf (selection_data);
|
|
|
|
gtk_image_set_from_pixbuf (GTK_IMAGE (image), pixbuf);
|
|
}
|
|
|
|
static gboolean
|
|
idle_func (gpointer data)
|
|
{
|
|
g_print ("keep me busy\n");
|
|
|
|
return G_SOURCE_CONTINUE;
|
|
}
|
|
|
|
static gboolean
|
|
anim_image_draw (GtkWidget *widget,
|
|
cairo_t *cr,
|
|
gpointer data)
|
|
{
|
|
g_print ("start busyness\n");
|
|
|
|
g_signal_handlers_disconnect_by_func (widget, anim_image_draw, data);
|
|
|
|
/* produce high load */
|
|
g_idle_add_full (G_PRIORITY_DEFAULT,
|
|
idle_func, NULL, NULL);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
GtkWidget *window, *grid;
|
|
GtkWidget *label, *image, *box;
|
|
GtkIconTheme *theme;
|
|
GdkPixbuf *pixbuf;
|
|
GtkIconSet *iconset;
|
|
GtkIconSource *iconsource;
|
|
gchar *icon_name = "gnome-terminal";
|
|
gchar *anim_filename = NULL;
|
|
GIcon *icon;
|
|
GFile *file;
|
|
GdkGeometry geo;
|
|
|
|
gtk_init (&argc, &argv);
|
|
|
|
if (argc > 1)
|
|
icon_name = argv[1];
|
|
|
|
if (argc > 2)
|
|
anim_filename = argv[2];
|
|
|
|
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
|
|
|
|
geo.min_width = 400;
|
|
geo.min_height = 300;
|
|
geo.max_width = 800;
|
|
geo.max_height = 600;
|
|
|
|
gtk_window_set_geometry_hints (GTK_WINDOW (window), NULL, &geo, GDK_HINT_MIN_SIZE | GDK_HINT_MAX_SIZE);
|
|
|
|
grid = gtk_grid_new ();
|
|
gtk_container_add (GTK_CONTAINER (window), grid);
|
|
|
|
label = gtk_label_new ("symbolic size");
|
|
gtk_grid_attach (GTK_GRID (grid), label, 1, 0, 1, 1);
|
|
label = gtk_label_new ("fixed size");
|
|
gtk_grid_attach (GTK_GRID (grid), label, 2, 0, 1, 1);
|
|
|
|
label = gtk_label_new ("GTK_IMAGE_PIXBUF");
|
|
gtk_grid_attach (GTK_GRID (grid), label, 0, 1, 1, 1);
|
|
|
|
theme = gtk_icon_theme_get_default ();
|
|
pixbuf = gtk_icon_theme_load_icon (theme, icon_name, 48, 0, NULL);
|
|
image = gtk_image_new_from_pixbuf (pixbuf);
|
|
box = gtk_event_box_new ();
|
|
gtk_container_add (GTK_CONTAINER (box), image);
|
|
gtk_grid_attach (GTK_GRID (grid), box, 2, 1, 1, 1);
|
|
|
|
gtk_drag_source_set (box, GDK_BUTTON1_MASK,
|
|
NULL, 0,
|
|
GDK_ACTION_COPY);
|
|
gtk_drag_source_add_image_targets (box);
|
|
g_signal_connect (box, "drag_begin", G_CALLBACK (drag_begin), image);
|
|
g_signal_connect (box, "drag_data_get", G_CALLBACK (drag_data_get), image);
|
|
|
|
gtk_drag_dest_set (box,
|
|
GTK_DEST_DEFAULT_MOTION |
|
|
GTK_DEST_DEFAULT_HIGHLIGHT |
|
|
GTK_DEST_DEFAULT_DROP,
|
|
NULL, 0, GDK_ACTION_COPY);
|
|
gtk_drag_dest_add_image_targets (box);
|
|
g_signal_connect (box, "drag_data_received",
|
|
G_CALLBACK (drag_data_received), image);
|
|
|
|
label = gtk_label_new ("GTK_IMAGE_STOCK");
|
|
gtk_grid_attach (GTK_GRID (grid), label, 0, 2, 1, 1);
|
|
|
|
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
|
|
image = gtk_image_new_from_stock (GTK_STOCK_REDO, GTK_ICON_SIZE_DIALOG);
|
|
gtk_grid_attach (GTK_GRID (grid), image, 1, 2, 1, 1);
|
|
|
|
label = gtk_label_new ("GTK_IMAGE_ICON_SET");
|
|
gtk_grid_attach (GTK_GRID (grid), label, 0, 3, 1, 1);
|
|
|
|
iconsource = gtk_icon_source_new ();
|
|
gtk_icon_source_set_icon_name (iconsource, icon_name);
|
|
iconset = gtk_icon_set_new ();
|
|
gtk_icon_set_add_source (iconset, iconsource);
|
|
image = gtk_image_new_from_icon_set (iconset, GTK_ICON_SIZE_DIALOG);
|
|
gtk_grid_attach (GTK_GRID (grid), image, 1, 3, 1, 1);
|
|
G_GNUC_END_IGNORE_DEPRECATIONS;
|
|
|
|
label = gtk_label_new ("GTK_IMAGE_ICON_NAME");
|
|
gtk_grid_attach (GTK_GRID (grid), label, 0, 4, 1, 1);
|
|
image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_DIALOG);
|
|
gtk_grid_attach (GTK_GRID (grid), image, 1, 4, 1, 1);
|
|
image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_DIALOG);
|
|
gtk_image_set_pixel_size (GTK_IMAGE (image), 30);
|
|
gtk_grid_attach (GTK_GRID (grid), image, 2, 4, 1, 1);
|
|
|
|
label = gtk_label_new ("GTK_IMAGE_GICON");
|
|
gtk_grid_attach (GTK_GRID (grid), label, 0, 5, 1, 1);
|
|
icon = g_themed_icon_new_with_default_fallbacks ("folder-remote");
|
|
image = gtk_image_new_from_gicon (icon, GTK_ICON_SIZE_DIALOG);
|
|
g_object_unref (icon);
|
|
gtk_grid_attach (GTK_GRID (grid), image, 1, 5, 1, 1);
|
|
file = g_file_new_for_path ("apple-red.png");
|
|
icon = g_file_icon_new (file);
|
|
image = gtk_image_new_from_gicon (icon, GTK_ICON_SIZE_DIALOG);
|
|
g_object_unref (icon);
|
|
gtk_image_set_pixel_size (GTK_IMAGE (image), 30);
|
|
gtk_grid_attach (GTK_GRID (grid), image, 2, 5, 1, 1);
|
|
|
|
|
|
if (anim_filename)
|
|
{
|
|
label = gtk_label_new ("GTK_IMAGE_ANIMATION (from file)");
|
|
gtk_grid_attach (GTK_GRID (grid), label, 0, 6, 1, 1);
|
|
image = gtk_image_new_from_file (anim_filename);
|
|
gtk_image_set_pixel_size (GTK_IMAGE (image), 30);
|
|
gtk_grid_attach (GTK_GRID (grid), image, 2, 6, 1, 1);
|
|
|
|
/* produce high load */
|
|
g_signal_connect_after (image, "draw",
|
|
G_CALLBACK (anim_image_draw),
|
|
NULL);
|
|
}
|
|
|
|
gtk_widget_show_all (window);
|
|
|
|
gtk_main ();
|
|
|
|
return 0;
|
|
}
|