mirror of
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211 lines
6.3 KiB
C
211 lines
6.3 KiB
C
/* testimage.c
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* Copyright (C) 2004 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <gtk/gtk.h>
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#include <gio/gio.h>
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static void
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drag_begin (GtkWidget *widget,
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GdkDragContext *context,
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gpointer data)
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{
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GtkWidget *image = GTK_WIDGET (data);
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GdkPixbuf *pixbuf = gtk_image_get_pixbuf (GTK_IMAGE (image));
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gtk_drag_set_icon_pixbuf (context, pixbuf, -2, -2);
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}
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void
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drag_data_get (GtkWidget *widget,
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GdkDragContext *context,
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GtkSelectionData *selection_data,
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guint info,
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guint time,
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gpointer data)
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{
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GtkWidget *image = GTK_WIDGET (data);
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GdkPixbuf *pixbuf = gtk_image_get_pixbuf (GTK_IMAGE (image));
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gtk_selection_data_set_pixbuf (selection_data, pixbuf);
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}
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static void
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drag_data_received (GtkWidget *widget,
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GdkDragContext *context,
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gint x,
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gint y,
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GtkSelectionData *selection_data,
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guint info,
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guint32 time,
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gpointer data)
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{
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GtkWidget *image = GTK_WIDGET (data);
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GdkPixbuf *pixbuf;
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if (gtk_selection_data_get_length (selection_data) < 0)
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return;
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pixbuf = gtk_selection_data_get_pixbuf (selection_data);
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gtk_image_set_from_pixbuf (GTK_IMAGE (image), pixbuf);
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}
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static gboolean
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idle_func (gpointer data)
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{
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g_print ("keep me busy\n");
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return G_SOURCE_CONTINUE;
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}
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static gboolean
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anim_image_draw (GtkWidget *widget,
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cairo_t *cr,
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gpointer data)
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{
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g_print ("start busyness\n");
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g_signal_handlers_disconnect_by_func (widget, anim_image_draw, data);
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/* produce high load */
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g_idle_add_full (G_PRIORITY_DEFAULT,
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idle_func, NULL, NULL);
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return FALSE;
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}
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int
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main (int argc, char **argv)
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{
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GtkWidget *window, *grid;
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GtkWidget *label, *image, *box;
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GtkIconTheme *theme;
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GdkPixbuf *pixbuf;
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GtkIconSet *iconset;
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GtkIconSource *iconsource;
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gchar *icon_name = "gnome-terminal";
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gchar *anim_filename = NULL;
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GIcon *icon;
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GFile *file;
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gtk_init (&argc, &argv);
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if (argc > 1)
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icon_name = argv[1];
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if (argc > 2)
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anim_filename = argv[2];
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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grid = gtk_grid_new ();
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gtk_container_add (GTK_CONTAINER (window), grid);
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label = gtk_label_new ("symbolic size");
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gtk_grid_attach (GTK_GRID (grid), label, 1, 0, 1, 1);
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label = gtk_label_new ("fixed size");
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gtk_grid_attach (GTK_GRID (grid), label, 2, 0, 1, 1);
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label = gtk_label_new ("GTK_IMAGE_PIXBUF");
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gtk_grid_attach (GTK_GRID (grid), label, 0, 1, 1, 1);
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theme = gtk_icon_theme_get_default ();
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pixbuf = gtk_icon_theme_load_icon (theme, icon_name, 48, 0, NULL);
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image = gtk_image_new_from_pixbuf (pixbuf);
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box = gtk_event_box_new ();
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gtk_container_add (GTK_CONTAINER (box), image);
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gtk_grid_attach (GTK_GRID (grid), box, 2, 1, 1, 1);
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gtk_drag_source_set (box, GDK_BUTTON1_MASK,
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NULL, 0,
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GDK_ACTION_COPY);
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gtk_drag_source_add_image_targets (box);
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g_signal_connect (box, "drag_begin", G_CALLBACK (drag_begin), image);
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g_signal_connect (box, "drag_data_get", G_CALLBACK (drag_data_get), image);
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gtk_drag_dest_set (box,
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GTK_DEST_DEFAULT_MOTION |
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GTK_DEST_DEFAULT_HIGHLIGHT |
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GTK_DEST_DEFAULT_DROP,
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NULL, 0, GDK_ACTION_COPY);
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gtk_drag_dest_add_image_targets (box);
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g_signal_connect (box, "drag_data_received",
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G_CALLBACK (drag_data_received), image);
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label = gtk_label_new ("GTK_IMAGE_STOCK");
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gtk_grid_attach (GTK_GRID (grid), label, 0, 2, 1, 1);
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image = gtk_image_new_from_stock (GTK_STOCK_REDO, GTK_ICON_SIZE_DIALOG);
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gtk_grid_attach (GTK_GRID (grid), image, 1, 2, 1, 1);
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label = gtk_label_new ("GTK_IMAGE_ICON_SET");
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gtk_grid_attach (GTK_GRID (grid), label, 0, 3, 1, 1);
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iconsource = gtk_icon_source_new ();
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gtk_icon_source_set_icon_name (iconsource, icon_name);
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iconset = gtk_icon_set_new ();
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gtk_icon_set_add_source (iconset, iconsource);
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image = gtk_image_new_from_icon_set (iconset, GTK_ICON_SIZE_DIALOG);
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gtk_grid_attach (GTK_GRID (grid), image, 1, 3, 1, 1);
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label = gtk_label_new ("GTK_IMAGE_ICON_NAME");
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gtk_grid_attach (GTK_GRID (grid), label, 0, 4, 1, 1);
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image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_DIALOG);
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gtk_grid_attach (GTK_GRID (grid), image, 1, 4, 1, 1);
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image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_DIALOG);
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gtk_image_set_pixel_size (GTK_IMAGE (image), 30);
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gtk_grid_attach (GTK_GRID (grid), image, 2, 4, 1, 1);
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label = gtk_label_new ("GTK_IMAGE_GICON");
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gtk_grid_attach (GTK_GRID (grid), label, 0, 5, 1, 1);
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icon = g_themed_icon_new_with_default_fallbacks ("folder-remote");
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image = gtk_image_new_from_gicon (icon, GTK_ICON_SIZE_DIALOG);
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g_object_unref (icon);
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gtk_grid_attach (GTK_GRID (grid), image, 1, 5, 1, 1);
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file = g_file_new_for_path ("apple-red.png");
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icon = g_file_icon_new (file);
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image = gtk_image_new_from_gicon (icon, GTK_ICON_SIZE_DIALOG);
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g_object_unref (icon);
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gtk_image_set_pixel_size (GTK_IMAGE (image), 30);
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gtk_grid_attach (GTK_GRID (grid), image, 2, 5, 1, 1);
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if (anim_filename)
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{
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label = gtk_label_new ("GTK_IMAGE_ANIMATION (from file)");
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gtk_grid_attach (GTK_GRID (grid), label, 0, 6, 1, 1);
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image = gtk_image_new_from_file (anim_filename);
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gtk_image_set_pixel_size (GTK_IMAGE (image), 30);
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gtk_grid_attach (GTK_GRID (grid), image, 2, 6, 1, 1);
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/* produce high load */
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g_signal_connect_after (image, "draw",
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G_CALLBACK (anim_image_draw),
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NULL);
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}
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gtk_widget_show_all (window);
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gtk_main ();
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return 0;
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}
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