dnd: Add more surface apis

The new function, gtk_drag_source_set_icon_surface, is for setting
a drag source icon without using GdkPixbuf.

1 files changed, 26 insertions, 0 deletions

diff --git a/gtk/gtkdragsource.c b/gtk/gtkdragsource.c
index e6bc185797..4c701b4599 100644
--- a/gtk/gtkdragsource.c
+++ b/gtk/gtkdragsource.c
@@ -374,6 +374,32 @@ gtk_drag_source_set_icon_pixbuf (GtkWidget *widget,
 }
 
 /**
+ * gtk_drag_source_set_icon_surface: (method)
+ * @widget: a #GtkWidget
+ * @surface: the cairo surface for the drag icon
+ * 
+ * Sets the icon that will be used for drags from a particular widget
+ * from a cairo surface. GTK+ retains a reference for @surface and will
+ * release it when it is no longer needed.
+ *
+ * Since: 3.94
+ */
+void
+gtk_drag_source_set_icon_surface (GtkWidget       *widget,
+                                  cairo_surface_t *surface)
+{
+  GtkDragSourceSite *site;
+
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+
+  site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
+  g_return_if_fail (site != NULL);
+
+  g_clear_pointer (&site->image_def, gtk_image_definition_unref);
+  site->image_def = gtk_image_definition_new_surface (surface);
+}
+
+/**
  * gtk_drag_source_set_icon_name: (method)
  * @widget: a #GtkWidget
  * @icon_name: name of icon to use