editor.h

c++ GUI Programming with QT4书中的源码

#ifndef EDITOR_H
#define EDITOR_H

#include <QTextEdit>

class Editor : public QTextEdit
{
    Q_OBJECT

public:
    Editor(QWidget *parent = 0);

    void newFile();
    bool open();
    bool openFile(const QString &fileName);
    bool save();
    bool saveAs();
    QSize sizeHint() const;
    QAction *windowMenuAction() const { return action; }

protected:
    void closeEvent(QCloseEvent *event);

private slots:
    void documentWasModified();

private:
    bool okToContinue();
    bool saveFile(const QString &fileName);
    void setCurrentFile(const QString &fileName);
    bool readFile(const QString &fileName);
    bool writeFile(const QString &fileName);
    QString strippedName(const QString &fullFileName);

    QString curFile;
    bool isUntitled;
    QString fileFilters;
    QAction *action;
};

#endif