app: migrate playhead/undo/modified events off EventBridge (issues 5-8)

- issue 5 (#53): ExportDialog playhead via PlaybackController - issue 6 (#54): timebasedwidget/timelinewidget playhead via PlaybackController - issue 7 (#55): historywidget via app-internal Core::undo_index_changed - issue 8 (#33): PROJECT_MODIFIED_CHANGED re-broadcast as Core::project_modified_changed
2026-08-05 00:52:37 +08:00
parent b77344b506
commit a030f2da20
13 changed files with 109 additions and 89 deletions
@@ -169,6 +169,8 @@ protected:

 	EngineEventBridge *bridge_ = nullptr;

+	QMetaObject::Connection playhead_conn_;
+
 	virtual void ConnectNodeEvent(OakEngineNode *)
 	{
 	}