/* 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, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

#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 (selection_data->length < 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 TRUE;

}

static gboolean

anim_image_expose (GtkWidget      *widget,

                   GdkEventExpose *eevent,

                   gpointer        data)

{

  g_print ("start busyness\n");

  g_signal_handlers_disconnect_by_func (widget, anim_image_expose, 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, *table;

  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;

  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);

  table = gtk_table_new (6, 3, FALSE);

  gtk_container_add (GTK_CONTAINER (window), table);

  label = gtk_label_new ("symbolic size");

  gtk_table_attach (GTK_TABLE (table), label, 1, 2, 0, 1,

		    0, 0, 5, 5);

  label = gtk_label_new ("fixed size");

  gtk_table_attach (GTK_TABLE (table), label, 2, 3, 0, 1,

		    0, 0, 5, 5);

  label = gtk_label_new ("GTK_IMAGE_PIXBUF");

  gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 1, 2);

  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_table_attach_defaults (GTK_TABLE (table), box, 2, 3, 1, 2);

  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_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 2, 3);

  image = gtk_image_new_from_stock (GTK_STOCK_REDO, GTK_ICON_SIZE_DIALOG);

  gtk_table_attach_defaults (GTK_TABLE (table), image, 1, 2, 2, 3);

  label = gtk_label_new ("GTK_IMAGE_ICON_SET");

  gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 3, 4);

  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_table_attach_defaults (GTK_TABLE (table), image, 1, 2, 3, 4);

  label = gtk_label_new ("GTK_IMAGE_ICON_NAME");

  gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 4, 5);

  image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_DIALOG);

  gtk_table_attach_defaults (GTK_TABLE (table), image, 1, 2, 4, 5);

  image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_DIALOG);

  gtk_image_set_pixel_size (GTK_IMAGE (image), 30);

  gtk_table_attach_defaults (GTK_TABLE (table), image, 2, 3, 4, 5);

  label = gtk_label_new ("GTK_IMAGE_GICON");

  gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 5, 6);

  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_table_attach_defaults (GTK_TABLE (table), image, 1, 2, 5, 6);

  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_table_attach_defaults (GTK_TABLE (table), image, 2, 3, 5, 6);

  if (anim_filename)

    {

      label = gtk_label_new ("GTK_IMAGE_ANIMATION (from file)");

      gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 5, 6);

      image = gtk_image_new_from_file (anim_filename);

      gtk_image_set_pixel_size (GTK_IMAGE (image), 30);

      gtk_table_attach_defaults (GTK_TABLE (table), image, 2, 3, 5, 6);

      /* produce high load */

      g_signal_connect_after (image, "expose-event",

                              G_CALLBACK (anim_image_expose),

                              NULL);

    }

  gtk_widget_show_all (window);

  gtk_main ();

  return 0;

}