From 8eba321abe7a074cfe12b153c3f4cf0c81c57ef9 Mon Sep 17 00:00:00 2001 From: Přemysl Janouch Date: Wed, 5 Jan 2011 11:03:38 +0100 Subject: Redraw LdCanvas on LdDiagram changes. --- src/ld-canvas.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'src') diff --git a/src/ld-canvas.c b/src/ld-canvas.c index 5995c57..b0f08a9 100644 --- a/src/ld-canvas.c +++ b/src/ld-canvas.c @@ -157,6 +157,9 @@ static void on_adjustment_value_changed static void on_size_allocate (GtkWidget *widget, GtkAllocation *allocation, gpointer user_data); +static void diagram_connect_signals (LdCanvas *self); +static void diagram_disconnect_signals (LdCanvas *self); + static gdouble ld_canvas_get_base_unit_in_px (GtkWidget *self); static gdouble ld_canvas_get_scale_in_px (LdCanvas *self); @@ -316,7 +319,10 @@ ld_canvas_finalize (GObject *gobject) ld_canvas_real_set_scroll_adjustments (self, NULL, NULL); if (self->priv->diagram) + { + diagram_disconnect_signals (self); g_object_unref (self->priv->diagram); + } if (self->priv->library) g_object_unref (self->priv->library); @@ -514,9 +520,13 @@ ld_canvas_set_diagram (LdCanvas *self, LdDiagram *diagram) g_return_if_fail (LD_IS_DIAGRAM (diagram)); if (self->priv->diagram) + { + diagram_disconnect_signals (self); g_object_unref (self->priv->diagram); + } self->priv->diagram = diagram; + diagram_connect_signals (self); g_object_ref (diagram); g_object_notify (G_OBJECT (self), "diagram"); @@ -536,6 +546,27 @@ ld_canvas_get_diagram (LdCanvas *self) return self->priv->diagram; } +static void +diagram_connect_signals (LdCanvas *self) +{ + g_return_if_fail (LD_IS_DIAGRAM (self->priv->diagram)); + + g_signal_connect_swapped (self->priv->diagram, "changed", + G_CALLBACK (gtk_widget_queue_draw), self); + g_signal_connect_swapped (self->priv->diagram, "selection-changed", + G_CALLBACK (gtk_widget_queue_draw), self); +} + +static void +diagram_disconnect_signals (LdCanvas *self) +{ + g_return_if_fail (LD_IS_DIAGRAM (self->priv->diagram)); + + g_signal_handlers_disconnect_matched (self->priv->diagram, + G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA, 0, 0, NULL, + gtk_widget_queue_draw, self); +} + /** * ld_canvas_set_library: * @self: An #LdCanvas object. -- cgit v1.2.3-70-g09d2