Adds initial intermediate qt6 porting state

qt6-after/qt6-migrated-legatus/Lts/Common/LtsScriptTimeline/track_entry_previewer.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#include <QWidget>
+
+
+namespace LtsScriptTimeline
+{
+class TrackEntry;
+
+
+class TrackEntryPreviewer : public QWidget
+{
+  Q_OBJECT
+
+public:
+  explicit TrackEntryPreviewer(QWidget *parent = nullptr);
+  ~TrackEntryPreviewer();
+
+  
+
+  void setTrackEntry(TrackEntry *te);
+  TrackEntry *trackEntry() const { return m_te; }
+
+protected:
+  void paintEvent(QPaintEvent *event) override;
+  void mousePressEvent(QMouseEvent *event) override;
+
+private:
+  TrackEntry *m_te;
+
+signals:
+  void signalDelete();
+  void signalStartDrag();
+  void signalStopDrag();
+
+};
+
+}