Question

这里是qtoolbar.h包含文件的所有文本，一字不差。它仅仅用来说明，版权由Trolltech保留。

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/****************************************************************************
** $Id:  qt/qtoolbar.h   3.0.5   edited Oct 12 2001 $
**
** Definition of QToolBar class
**
** Created : 980306
**
** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
**
** This file is part of the widgets module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
**   information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#ifndef QTOOLBAR_H
#define QTOOLBAR_H

#ifndef QT_H
#include "qdockwindow.h"
#endif // QT_H

#ifndef QT_NO_TOOLBAR

class QMainWindow;
class QButton;
class QBoxLayout;
class QToolBarPrivate;

class Q_EXPORT QToolBar: public QDockWindow
{
    Q_OBJECT
    Q_PROPERTY( QString label READ label WRITE setLabel )

public:
    QToolBar( const QString &label,
	      QMainWindow *, ToolBarDock = DockTop,
	      bool newLine = FALSE, const char* name=0 );
    QToolBar( const QString &label, QMainWindow *, QWidget *,
	      bool newLine = FALSE, const char* name=0, WFlags f = 0 );
    QToolBar( QMainWindow* parent=0, const char* name=0 );
    ~QToolBar();

    void addSeparator();

    void show();
    void hide();

    QMainWindow * mainWindow() const;

    virtual void setStretchableWidget( QWidget * );

    bool event( QEvent * e );

    virtual void setLabel( const QString & );
    QString label() const;

    virtual void clear();

    QSize minimumSize() const;
    QSize minimumSizeHint() const;

    void setOrientation( Orientation o );
    void setMinimumSize( int minw, int minh );

protected:
    void resizeEvent( QResizeEvent *e );
    void styleChange( QStyle & );

private slots:
    void popupSelected( int id );
    void emulateButtonClicked();
    void setupArrowMenu();

private:
    void init();

    QToolBarPrivate * d;
    QMainWindow * mw;
    QWidget * sw;
    QString l;

    friend class QMainWindow;

private:	// Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
    QToolBar( const QToolBar & );
    QToolBar& operator=( const QToolBar & );
#endif
};

#endif // QT_NO_TOOLBAR

#endif // QTOOLBAR_H