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-rw-r--r--widgets/misc/e-canvas-background.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/widgets/misc/e-canvas-background.c b/widgets/misc/e-canvas-background.c
index 9fe59f6feb..80b3bf014e 100644
--- a/widgets/misc/e-canvas-background.c
+++ b/widgets/misc/e-canvas-background.c
@@ -76,6 +76,26 @@ ecb_bounds (GnomeCanvasItem *item, gdouble *x1, gdouble *y1, gdouble *x2, gdoubl
}
static void
+ecb_update (GnomeCanvasItem *item, const cairo_matrix_t *i2c, gint flags)
+{
+ gdouble x1, y1, x2, y2;
+
+ x1 = item->x1;
+ y1 = item->y1;
+ x2 = item->x2;
+ y2 = item->y2;
+
+ /* The bounds are all constants so we should only have to
+ * redraw once. */
+ ecb_bounds (item, &item->x1, &item->y1, &item->x2, &item->y2);
+
+ if (item->x1 != x1 || item->y1 != y1 ||
+ item->x2 != x2 || item->y2 != y2)
+ gnome_canvas_request_redraw (
+ item->canvas, item->x1, item->y1, item->x2, item->y2);
+}
+
+static void
ecb_dispose (GObject *object)
{
ECanvasBackground *ecb = E_CANVAS_BACKGROUND (object);
@@ -217,6 +237,7 @@ ecb_class_init (ECanvasBackgroundClass *ecb_class)
object_class->set_property = ecb_set_property;
object_class->get_property = ecb_get_property;
+ item_class->update = ecb_update;
item_class->draw = ecb_draw;
item_class->point = ecb_point;
item_class->bounds = ecb_bounds;