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Redraw LdCanvas on LdDiagram changes.

This commit is contained in:
Přemysl Eric Janouch 2011-01-05 11:03:38 +01:00
parent 63f6feaa0e
commit 8eba321abe
1 changed files with 31 additions and 0 deletions
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31
src/ld-canvas.c
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@ -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.