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# qdesktopwidget.h

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    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtGui module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QDESKTOPWIDGET_H
    00043 #define QDESKTOPWIDGET_H
    00044
    00045 #include <QtGui/qwidget.h>
    00046
    00047 QT_BEGIN_HEADER
    00048
    00049 QT_BEGIN_NAMESPACE
    00050
    00051 QT_MODULE(Gui)
    00052
    00053 class QApplication;
    00054 class QDesktopWidgetPrivate;
    00055
    00056 class Q_GUI_EXPORT QDesktopWidget : public QWidget
    00057 {
    00058     Q_OBJECT
    00059     Q_PROPERTY(bool virtualDesktop READ isVirtualDesktop)
    00060     Q_PROPERTY(int screenCount READ screenCount NOTIFY screenCountChanged)
    00061     Q_PROPERTY(int primaryScreen READ primaryScreen)
    00062 public:
    00063     QDesktopWidget();
    00064     ~QDesktopWidget();
    00065
    00066     bool isVirtualDesktop() const;
    00067
    00068     int numScreens() const;
    00069     int screenCount() const;
    00070     int primaryScreen() const;
    00071
    00072     int screenNumber(const QWidget *widget = 0) const;
    00073     int screenNumber(const QPoint &) const;
    00074
    00075     QWidget *screen(int screen = -1);
    00076
    00077     const QRect screenGeometry(int screen = -1) const;
    00078     const QRect screenGeometry(const QWidget *widget) const;
    00079     const QRect screenGeometry(const QPoint &point) const
    00080     { return screenGeometry(screenNumber(point)); }
    00081
    00082     const QRect availableGeometry(int screen = -1) const;
    00083     const QRect availableGeometry(const QWidget *widget) const;
    00084     const QRect availableGeometry(const QPoint &point) const
    00085     { return availableGeometry(screenNumber(point)); }
    00086
    00087 Q_SIGNALS:
    00088     void resized(int);
    00089     void workAreaResized(int);
    00090     void screenCountChanged(int);
    00091
    00092 protected:
    00093     void resizeEvent(QResizeEvent *e);
    00094
    00095 private:
    00096     Q_DISABLE_COPY(QDesktopWidget)
    00097     Q_DECLARE_PRIVATE(QDesktopWidget)
    00098
    00099     friend class QApplication;
    00100     friend class QApplicationPrivate;
    00101 };
    00102
    00103 inline int QDesktopWidget::screenCount() const
    00104 { return numScreens(); }
    00105
    00106 QT_END_NAMESPACE
    00107
    00108 QT_END_HEADER
    00109
    00110 #endif // QDESKTOPWIDGET_H