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src/qt/include/qdesktopwidget.h
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00001 /****************************************************************************
00002 ** $Id: qt/qdesktopwidget.h   3.3.8   edited Jan 11 14:38 $
00003 **
00004 ** Definition of QDesktopWidget class.
00005 **
00006 ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
00007 **
00008 ** This file is part of the kernel module of the Qt GUI Toolkit.
00009 **
00010 ** This file may be distributed under the terms of the Q Public License
00011 ** as defined by Trolltech ASA of Norway and appearing in the file
00012 ** LICENSE.QPL included in the packaging of this file.
00013 **
00014 ** This file may be distributed and/or modified under the terms of the
00015 ** GNU General Public License version 2 as published by the Free Software
00016 ** Foundation and appearing in the file LICENSE.GPL included in the
00017 ** packaging of this file.
00018 **
00019 ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
00020 ** licenses for Unix/X11 may use this file in accordance with the Qt Commercial
00021 ** License Agreement provided with the Software.
00022 **
00023 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00024 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00025 **
00026 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
00027 **   information about Qt Commercial License Agreements.
00028 ** See http://www.trolltech.com/qpl/ for QPL licensing information.
00029 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
00030 **
00031 ** Contact info@trolltech.com if any conditions of this licensing are
00032 ** not clear to you.
00033 **
00034 **********************************************************************/
00035 
00036 #ifndef QDESKTOPWIDGET_H
00037 #define QDESKTOPWIDGET_H
00038 
00039 #ifndef QT_H
00040 #include "qwidget.h"
00041 #endif // QT_H
00042 
00043 class QApplication;
00044 class QDesktopWidgetPrivate; /* Don't touch! */
00045 
00046 class Q_EXPORT QDesktopWidget : public QWidget
00047 {
00048     Q_OBJECT
00049 public:
00050     QDesktopWidget();
00051     ~QDesktopWidget();
00052 
00053     bool isVirtualDesktop() const;
00054 
00055     int numScreens() const;
00056     int primaryScreen() const;
00057 
00058     int screenNumber( QWidget *widget = 0 ) const; // ### 4.0: const QWidget*
00059     int screenNumber( const QPoint & ) const;
00060 
00061     QWidget *screen( int screen = -1 );
00062 
00063     const QRect& screenGeometry( int screen = -1 ) const;
00064     const QRect& screenGeometry( QWidget *widget ) const
00065     { return screenGeometry( screenNumber( widget ) ); }
00066     const QRect& screenGeometry( const QPoint &point ) const
00067     { return screenGeometry( screenNumber( point ) ); }
00068 
00069     const QRect& availableGeometry( int screen = -1 ) const;
00070     const QRect& availableGeometry( QWidget *widget ) const
00071     { return availableGeometry( screenNumber( widget ) ); }
00072     const QRect& availableGeometry( const QPoint &point ) const
00073     { return availableGeometry( screenNumber( point ) ); }
00074 
00075     void insertChild( QObject * );
00076 
00077 signals:
00078     void resized( int );
00079     void workAreaResized( int );
00080 
00081 protected:
00082     void resizeEvent( QResizeEvent *e );
00083 
00084 private:
00085     QDesktopWidgetPrivate *d;
00086 
00087 #if defined(Q_DISABLE_COPY) // Disabled copy constructor and operator=
00088     QDesktopWidget( const QDesktopWidget & );
00089     QDesktopWidget &operator=( const QDesktopWidget & );
00090 #endif
00091 
00092     friend class QApplication;
00093 #ifdef Q_WS_QWS
00094     friend class QWSDisplay;
00095 #endif
00096 };
00097 
00098 #endif //QDESKTOPWIDGET_H
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