Continues migration with DDS, Common

Lts/Common/LtsScriptTimeline/track_drag_handler.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include <LtsScriptTimeline/ltsscripttimeline_export.h>
+
+#include <QWidget>
+
+namespace LtsScriptTimeline
+{
+class TrackContentWidget;
+class TrackEntry;
+
+class LTSSCRIPTTIMELINE_EXPORT DragHandler
+{
+public:
+  explicit DragHandler(TrackContentWidget *_tcw)
+    : m_tcw(_tcw)
+    , m_dropPos(-1)
+  {}
+
+  void dragEnterEvent(QDragEnterEvent *event);
+  void dragLeaveEvent(QDragLeaveEvent *event);
+  void dropEvent(QDropEvent *event);
+  void dragMoveEvent(QDragMoveEvent *event);
+  void mousePressEvent(QMouseEvent *event);
+  void mouseMoveEvent(QMouseEvent *event);
+  void keyPressEvent(QKeyEvent *event);
+
+  TrackContentWidget *m_tcw;
+  QVector<TrackContentWidget *> m_tcwCorresponding;
+
+  QPoint m_dragStartPos;
+  QVector<TrackEntry *> m_vecCollisions, m_vecParallel;
+  int m_dropPos;
+};
+}