log history memory usage add fix virtual dtor for Action subclasses to be deleted from memory

2017-05-10 13:41:27 +01:00
parent eb8f93af91
commit 6f785c1944
6 changed files with 50 additions and 21 deletions
--- a/engine/app.cpp
+++ b/engine/app.cpp
@@ -623,7 +623,8 @@ void App::initLayout()
        if (auto* button = layout[main_id]->find<NodeButton>("btn-undo"))
        {
            button->on_click = [this,button](Node*) {
-                ActionManager::undo();
+                if (!ActionManager::empty())
+                    ActionManager::undo();
            };
        }
        if (auto* button = layout[main_id]->find<NodeButton>("btn-clear"))