1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2015 The Qt Company Ltd. 4 ** Contact: http://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtGui module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see http://www.qt.io/terms-conditions. For further 15 ** information use the contact form at http://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 2.1 or version 3 as published by the Free 20 ** Software Foundation and appearing in the file LICENSE.LGPLv21 and 21 ** LICENSE.LGPLv3 included in the packaging of this file. Please review the 22 ** following information to ensure the GNU Lesser General Public License 23 ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and 24 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 25 ** 26 ** As a special exception, The Qt Company gives you certain additional 27 ** rights. These rights are described in The Qt Company LGPL Exception 28 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. 29 ** 30 ** GNU General Public License Usage 31 ** Alternatively, this file may be used under the terms of the GNU 32 ** General Public License version 3.0 as published by the Free Software 33 ** Foundation and appearing in the file LICENSE.GPL included in the 34 ** packaging of this file. Please review the following information to 35 ** ensure the GNU General Public License version 3.0 requirements will be 36 ** met: http://www.gnu.org/copyleft/gpl.html. 37 ** 38 ** $QT_END_LICENSE$ 39 ** 40 ****************************************************************************/ 41 42 #ifndef QDESKTOPWIDGET_H 43 #define QDESKTOPWIDGET_H 44 45 #include <QtGui/qwidget.h> 46 47 QT_BEGIN_HEADER 48 49 QT_BEGIN_NAMESPACE 50 51 QT_MODULE(Gui) 52 53 class QApplication; 54 class QDesktopWidgetPrivate; 55 56 class Q_GUI_EXPORT QDesktopWidget : public QWidget 57 { 58 Q_OBJECT 59 Q_PROPERTY(bool virtualDesktop READ isVirtualDesktop) 60 Q_PROPERTY(int screenCount READ screenCount NOTIFY screenCountChanged) 61 Q_PROPERTY(int primaryScreen READ primaryScreen) 62 public: 63 QDesktopWidget(); 64 ~QDesktopWidget(); 65 66 bool isVirtualDesktop() const; 67 68 int numScreens() const; 69 int screenCount() const; 70 int primaryScreen() const; 71 72 int screenNumber(const QWidget *widget = 0) const; 73 int screenNumber(const QPoint &) const; 74 75 QWidget *screen(int screen = -1); 76 77 const QRect screenGeometry(int screen = -1) const; 78 const QRect screenGeometry(const QWidget *widget) const; screenGeometry(const QPoint & point)79 const QRect screenGeometry(const QPoint &point) const 80 { return screenGeometry(screenNumber(point)); } 81 82 const QRect availableGeometry(int screen = -1) const; 83 const QRect availableGeometry(const QWidget *widget) const; availableGeometry(const QPoint & point)84 const QRect availableGeometry(const QPoint &point) const 85 { return availableGeometry(screenNumber(point)); } 86 87 Q_SIGNALS: 88 void resized(int); 89 void workAreaResized(int); 90 void screenCountChanged(int); 91 92 protected: 93 void resizeEvent(QResizeEvent *e); 94 95 private: 96 Q_DISABLE_COPY(QDesktopWidget) 97 Q_DECLARE_PRIVATE(QDesktopWidget) 98 99 friend class QApplication; 100 friend class QApplicationPrivate; 101 }; 102 screenCount()103inline int QDesktopWidget::screenCount() const 104 { return numScreens(); } 105 106 QT_END_NAMESPACE 107 108 QT_END_HEADER 109 110 #endif // QDESKTOPWIDGET_H 111