added (yet unused) functions gimp_selection_data_[get|set]_pixbuf().

2004-07-01  Sven Neumann  <sven@gimp.org>

	* app/widgets/gimpselectiondata.[ch]: added (yet unused) functions
	gimp_selection_data_[get|set]_pixbuf().

ChangeLog

@@ -1,3 +1,8 @@
+2004-07-01  Sven Neumann  <sven@gimp.org>
+
+	* app/widgets/gimpselectiondata.[ch]: added (yet unused) functions
+	gimp_selection_data_[get|set]_pixbuf().
+
 2004-07-01  Michael Natterer  <mitch@gimp.org>
 
 	* app/widgets/gimpfgbgarea.[ch]: implement GtkWidget::drag_motion()

app/widgets/gimpselectiondata.c

@@ -408,6 +408,65 @@ gimp_selection_data_get_stream (GtkSelectionData *selection,
   return (const guchar *) selection->data;
 }
 
+void
+gimp_selection_data_set_pixbuf (GtkSelectionData *selection,
+                                GdkAtom           atom,
+                                GdkPixbuf        *pixbuf)
+{
+  gchar  *buffer;
+  gsize   buffer_size;
+  GError *error = NULL;
+
+  g_return_if_fail (selection != NULL);
+  g_return_if_fail (atom != GDK_NONE);
+  g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
+
+  if (gdk_pixbuf_save_to_buffer (pixbuf, &buffer, &buffer_size, "png", &error))
+    {
+      gtk_selection_data_set (selection, atom,
+                              8, (guchar *) buffer, buffer_size);
+      g_free (buffer);
+    }
+  else
+    {
+      g_warning ("%s: %s", G_STRFUNC, error->message);
+      g_error_free (error);
+    }
+}
+
+GdkPixbuf *
+gimp_selection_data_get_pixbuf (GtkSelectionData *selection)
+{
+  GdkPixbufLoader *loader;
+  GdkPixbuf       *pixbuf = NULL;
+  GError          *error  = NULL;
+
+  g_return_val_if_fail (selection != NULL, NULL);
+
+  if ((selection->format != 8) || (selection->length < 1))
+    {
+      g_warning ("Received invalid image data!");
+      return NULL;
+    }
+
+  loader = gdk_pixbuf_loader_new ();
+
+  if (gdk_pixbuf_loader_write (loader,
+                               selection->data, selection->length, &error))
+    {
+      pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
+    }
+  else
+    {
+      g_warning ("%s: %s", G_STRFUNC, error->message);
+      g_error_free (error);
+    }
+
+  g_object_unref (loader);
+
+  return pixbuf;
+}
+
 void
 gimp_selection_data_set_image (GtkSelectionData *selection,
                                GdkAtom           atom,

app/widgets/gimpselectiondata.h

@@ -47,6 +47,14 @@ const guchar  * gimp_selection_data_get_stream    (GtkSelectionData *selection,
                                                    gsize            *stream_length);
 
 
+/*  pixbuf  */
+
+void            gimp_selection_data_set_pixbuf    (GtkSelectionData *selection,
+                                                   GdkAtom           atom,
+                                                   GdkPixbuf        *pixbuf);
+GdkPixbuf     * gimp_selection_data_get_pixbuf    (GtkSelectionData *selection);
+
+
 /*  image  */
 
 void            gimp_selection_data_set_image     (GtkSelectionData *selection,