g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
}
-void vik_layer_emit_update ( VikLayer *vl )
+/**
+ * Invoke the actual drawing via signal method
+ */
+static gboolean idle_draw ( VikLayer *vl )
+{
+ g_signal_emit ( G_OBJECT(vl), layer_signals[VL_UPDATE_SIGNAL], 0 );
+ return FALSE; // Nothing else to do
+}
+
+/**
+ * Draw specified layer
+ */
+void vik_layer_emit_update ( VikLayer *vl, gboolean from_background )
{
if ( vl->visible ) {
vik_window_set_redraw_trigger(vl);
- g_signal_emit ( G_OBJECT(vl), layer_signals[VL_UPDATE_SIGNAL], 0 );
+
+ // Only ever draw when there is time to do so
+ if ( from_background )
+ // Drawing requested from background thread, so handle via the gdk thread method
+ gdk_threads_add_idle ( (GSourceFunc) idle_draw, vl );
+ else
+ g_idle_add ( (GSourceFunc) idle_draw, vl );
}
}
-/* should only be done by VikLayersPanel -- need to redraw and record trigger
- * when we make a layer invisible.
+/**
+ * should only be done by VikLayersPanel (hence never used from the background)
+ * need to redraw and record trigger when we make a layer invisible.
*/
void vik_layer_emit_update_although_invisible ( VikLayer *vl )
{
vik_window_set_redraw_trigger(vl);
- g_signal_emit ( G_OBJECT(vl), layer_signals[VL_UPDATE_SIGNAL], 0 );
+ g_idle_add ( (GSourceFunc) idle_draw, vl );
}
/* doesn't set the trigger. should be done by aggregate layer when child emits update. */
void vik_layer_emit_update_secondary ( VikLayer *vl )
{
if ( vl->visible )
- g_signal_emit ( G_OBJECT(vl), layer_signals[VL_UPDATE_SIGNAL], 0 );
+ // TODO: this can used from the background - eg in acquire
+ // so will need to flow background update status through too
+ g_idle_add ( (GSourceFunc) idle_draw, vl );
}
static VikLayerInterface *vik_layer_interfaces[VIK_LAYER_NUM_TYPES] = {
return TRUE; /* if unknown, will always be visible */
}
+gboolean vik_layer_selected ( VikLayer *l, gint subtype, gpointer sublayer, gint type, gpointer vlp )
+{
+ if ( vik_layer_interfaces[l->type]->layer_selected )
+ return vik_layer_interfaces[l->type]->layer_selected ( l, subtype, sublayer, type, vlp );
+ /* Since no 'layer_selected' function explicitly turn off here */
+ return vik_window_clear_highlight ( (VikWindow *)VIK_GTK_WINDOW_FROM_LAYER(l) );
+}
+
void vik_layer_realize ( VikLayer *l, VikTreeview *vt, GtkTreeIter *layer_iter )
{
l->vt = vt;
vik_layer_interfaces[l->type]->add_menu_items ( l, menu, vlp );
}
-gboolean vik_layer_sublayer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter )
+gboolean vik_layer_sublayer_add_menu_items ( VikLayer *l, GtkMenu *menu, gpointer vlp, gint subtype, gpointer sublayer, GtkTreeIter *iter, VikViewport *vvp )
{
if ( vik_layer_interfaces[l->type]->sublayer_add_menu_items )
- return vik_layer_interfaces[l->type]->sublayer_add_menu_items ( l, menu, vlp, subtype, sublayer, iter );
+ return vik_layer_interfaces[l->type]->sublayer_add_menu_items ( l, menu, vlp, subtype, sublayer, iter, vvp );
return FALSE;
}
return NULL;
}
+const gchar* vik_layer_sublayer_tooltip ( VikLayer *l, gint subtype, gpointer sublayer )
+{
+ if ( vik_layer_interfaces[l->type]->sublayer_tooltip )
+ return vik_layer_interfaces[l->type]->sublayer_tooltip ( l, subtype, sublayer );
+ return NULL;
+}
+
+const gchar* vik_layer_layer_tooltip ( VikLayer *l )
+{
+ if ( vik_layer_interfaces[l->type]->layer_tooltip )
+ return vik_layer_interfaces[l->type]->layer_tooltip ( l );
+ return NULL;
+}
+
GdkPixbuf *vik_layer_load_icon ( gint type )
{
g_assert ( type < VIK_LAYER_NUM_TYPES );