Initial commit

Lts/Common/LtsTimeline/timeline_header_view_mouse_handler.h

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+#pragma once
+
+#include <LtsTimeline/ltstimeline_export.h>
+
+#include <QPoint>
+
+
+class QMouseEvent;
+class QWheelEvent;
+
+
+namespace LtsTimeline
+{
+
+class TimelineHeaderView;
+
+
+class LTSTIMELINE_EXPORT TimelineHeaderViewMouseHandler
+{
+
+public:
+  explicit TimelineHeaderViewMouseHandler(TimelineHeaderView *header);
+
+  void mouseMoveEvent(QMouseEvent *e);
+  void mousePressEvent(QMouseEvent *e);
+  void mouseReleaseEvent(QMouseEvent *e);
+  void wheelEvent(QWheelEvent *e);
+
+  bool isBusy() const { return m_isIndicatorSelected || m_isResizingSection; }
+  bool isIndicatorSelected() const { return m_isIndicatorSelected; }
+
+private:
+//  bool isMouseWithinRange(const QPoint &pos) const;
+  bool isMouseWithinRangeX(int x) const;
+  bool isMouseWithinRangeY(int y) const;
+  bool isMouseOverIndicator(const QPoint &pos) const;
+
+private:
+  TimelineHeaderView *m_header{nullptr};
+  QPoint m_lastPos;
+  bool m_isLeftButtonPressed{false};
+  bool m_isRightButtonPressed{false};
+  bool m_hasMouseMovedLeft{false}; // Left means while left button is clicked
+  bool m_hasMouseMovedRight{false}; // Right means while right button is clicked
+  bool m_isIndicatorSelected{false};
+  bool m_isResizingSection{false};
+};
+
+} // namespace LtsTimeline