#ifndef REGEXPWINDOW_H#define REGEXPWINDOW_H#include <QWidget>class QLabel;class QLineEdit;class QTreeView;class RegExpModel;class RegExpWindow : public QWidget{    Q_OBJECTpublic:    RegExpWindow();private slots:    void regExpChanged(const QString &regExp);private:    QLabel *label;    QLineEdit *lineEdit;    RegExpModel *regExpModel;    QTreeView *treeView;};#endif