#ifndef PROJECTLISTWIDGET_H#define PROJECTLISTWIDGET_H#include <QListWidget>class ProjectListWidget : public QListWidget{    Q_OBJECTpublic:    ProjectListWidget(QWidget *parent = 0);protected:    void mousePressEvent(QMouseEvent *event);    void mouseMoveEvent(QMouseEvent *event);    void dragEnterEvent(QDragEnterEvent *event);    void dragMoveEvent(QDragMoveEvent *event);    void dropEvent(QDropEvent *event);private:    void startDrag();    QPoint startPos;};#endif