void Command_manager::undo() {
INVARIANT(undo_available(), "undo() called with empty history");
auto& last_cmd = _commands.at(_history_size-1);
last_cmd->undo();
_history_size--;
}
/*
This is the real implementation of the sensitivity update.
TODO: move it to the DDisplay as it belongs to it IMHO
*/
void
diagram_update_menu_sensitivity (Diagram *dia)
{
gint selected_count = g_list_length (dia->data->selected);
DDisplay *ddisp = ddisplay_active();
gboolean focus_active = (get_active_focus(dia->data) != NULL);
gboolean textedit_active = ddisp ? textedit_mode(ddisp) : FALSE;
GtkAction *action;
/* Edit menu */
if ((action = menus_get_action ("EditUndo")) != NULL)
gtk_action_set_sensitive (action, dia ? undo_available(dia->undo, TRUE) : FALSE);
if ((action = menus_get_action ("EditRedo")) != NULL)
gtk_action_set_sensitive (action, dia ? undo_available(dia->undo, FALSE) : FALSE);
if ((action = menus_get_action ("EditCopy")) != NULL)
gtk_action_set_sensitive (action, textedit_active || selected_count > 0);
if ((action = menus_get_action ("EditCut")) != NULL)
gtk_action_set_sensitive (action, textedit_mode(ddisp) || selected_count > 0);
if ((action = menus_get_action ("EditPaste")) != NULL)
gtk_action_set_sensitive (action, textedit_active || cnp_exist_stored_objects());
if ((action = menus_get_action ("EditDelete")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 0);
if ((action = menus_get_action ("EditDuplicate")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 0);
if ((action = menus_get_action ("EditCopytext")) != NULL)
gtk_action_set_sensitive (action, focus_active);
if ((action = menus_get_action ("EditCuttext")) != NULL)
gtk_action_set_sensitive (action, focus_active);
if ((action = menus_get_action ("EditPastetext")) != NULL)
gtk_action_set_sensitive (action, focus_active);
/* Objects menu */
if ((action = menus_get_action ("ObjectsSendtoback")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 0);
if ((action = menus_get_action ("ObjectsBringtofront")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 0);
if ((action = menus_get_action ("ObjectsSendbackwards")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 0);
if ((action = menus_get_action ("ObjectsBringforwards")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 0);
if ((action = menus_get_action ("ObjectsLayerAbove")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 0);
if ((action = menus_get_action ("ObjectsLayerBelow")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 0);
if ((action = menus_get_action ("ObjectsGroup")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 1);
if ((action = menus_get_action ("ObjectsUngroup")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && diagram_selected_any_groups (dia));
if ((action = menus_get_action ("ObjectsParent")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && diagram_selected_can_parent (dia));
if ((action = menus_get_action ("ObjectsUnparent")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && diagram_selected_any_children (dia));
if ((action = menus_get_action ("ObjectsUnparentchildren")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && diagram_selected_any_parents (dia));
if ((action = menus_get_action ("ObjectsProperties")) != NULL)
gtk_action_set_sensitive (action, selected_count > 0);
/* Objects->Align menu */
if ((action = menus_get_action ("ObjectsAlignLeft")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 1);
if ((action = menus_get_action ("ObjectsAlignCenter")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 1);
if ((action = menus_get_action ("ObjectsAlignRight")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 1);
if ((action = menus_get_action ("ObjectsAlignSpreadouthorizontally")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 1);
if ((action = menus_get_action ("ObjectsAlignAdjacent")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 1);
if ((action = menus_get_action ("ObjectsAlignTop")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 1);
if ((action = menus_get_action ("ObjectsAlignMiddle")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 1);
if ((action = menus_get_action ("ObjectsAlignBottom")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 1);
if ((action = menus_get_action ("ObjectsAlignSpreadoutvertically")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 1);
if ((action = menus_get_action ("ObjectsAlignStacked")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 1);
if ((action = menus_get_action ("ObjectsAlignConnected")) != NULL)
gtk_action_set_sensitive (action, !textedit_active && selected_count > 1);
/* Select menu */
if ((action = menus_get_action ("SelectAll")) != NULL)
gtk_action_set_sensitive (action, !textedit_active);
if ((action = menus_get_action ("SelectNone")) != NULL)
gtk_action_set_sensitive (action, !textedit_active);
if ((action = menus_get_action ("SelectInvert")) != NULL)
gtk_action_set_sensitive (action, !textedit_active);
if ((action = menus_get_action ("SelectTransitive")) != NULL)
gtk_action_set_sensitive (action, !textedit_active);
if ((action = menus_get_action ("SelectConnected")) != NULL)
gtk_action_set_sensitive (action, !textedit_active);
if ((action = menus_get_action ("SelectSametype")) != NULL)
gtk_action_set_sensitive (action, !textedit_active);
if ((action = menus_get_action ("SelectReplace")) != NULL)
gtk_action_set_sensitive (action, !textedit_active);
if ((action = menus_get_action ("SelectUnion")) != NULL)
gtk_action_set_sensitive (action, !textedit_active);
if ((action = menus_get_action ("SelectIntersection")) != NULL)
gtk_action_set_sensitive (action, !textedit_active);
if ((action = menus_get_action ("SelectRemove")) != NULL)
gtk_action_set_sensitive (action, !textedit_active);
if ((action = menus_get_action ("SelectInverse")) != NULL)
gtk_action_set_sensitive (action, !textedit_active);
/* Tools menu - toolbox actions */
gtk_action_group_set_sensitive (menus_get_tool_actions (), !textedit_active);
/* View menu - should not need disabling yet */
}
