first commit

project/fm_viewer/ui/rm_widget_drag.h

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+#ifndef RM_WIDGET_DRAG_H
+#define RM_WIDGET_DRAG_H
+
+#include "../rm_include.h"
+//#include <QWidget>
+
+class RMWidgetDrag : public QObject
+{
+    Q_OBJECT
+public:
+    explicit RMWidgetDrag(QWidget *target,int titleBarHeight);
+    ~RMWidgetDrag();
+private:
+    int             _titleBarHeight;
+    QWidget*        _target;
+    bool            _dragStart;
+    QPoint          _dragPos;
+    bool eventFilter(QObject *o, QEvent *e) override;
+signals:
+    void onWindowMove();
+public slots:
+};
+
+#endif // RM_WIDGET_DRAG_H