qdesktopwidget.h

奇趣公司比较新的qt/emd版本

/****************************************************************************
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at [e-mail].
**
** In addition, as a special exception, Trolltech gives you certain
** additional rights. These rights are described in the Trolltech GPL
** Exception version 1.0, which can be found at
** http://www.trolltech.com/products/qt/gplexception/ and in the file
** GPL_EXCEPTION.txt in this package.
**
** In addition, as a special exception, Trolltech, as the sole copyright
** holder for Qt Designer, grants users of the Qt/Eclipse Integration
** plug-in the right for the Qt/Eclipse Integration to link to
** functionality provided by Qt Designer and its related libraries.
**
** Trolltech reserves all rights not expressly granted herein.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#ifndef QDESKTOPWIDGET_H
#define QDESKTOPWIDGET_H

#include <QtGui/qwidget.h>

QT_BEGIN_HEADER

QT_MODULE(Gui)

class QApplication;
class QDesktopWidgetPrivate;

class Q_GUI_EXPORT QDesktopWidget : public QWidget
{
    Q_OBJECT
public:
    QDesktopWidget();
    ~QDesktopWidget();

    bool isVirtualDesktop() const;

    int numScreens() const;
    int primaryScreen() const;

    int screenNumber(const QWidget *widget = 0) const;
    int screenNumber(const QPoint &) const;

    QWidget *screen(int screen = -1);

    const QRect screenGeometry(int screen = -1) const;
    const QRect screenGeometry(const QWidget *widget) const
    { return screenGeometry(screenNumber(widget)); }
    const QRect screenGeometry(const QPoint &point) const
    { return screenGeometry(screenNumber(point)); }

    const QRect availableGeometry(int screen = -1) const;
    const QRect availableGeometry(const QWidget *widget) const
    { return availableGeometry(screenNumber(widget)); }
    const QRect availableGeometry(const QPoint &point) const
    { return availableGeometry(screenNumber(point)); }

Q_SIGNALS:
    void resized(int);
    void workAreaResized(int);

protected:
    void resizeEvent(QResizeEvent *e);

private:
    Q_DISABLE_COPY(QDesktopWidget)
    Q_DECLARE_PRIVATE(QDesktopWidget)

    friend class QApplication;
    friend class QApplicationPrivate;
};

QT_END_HEADER

#endif // QDESKTOPWIDGET_H