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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qdesktopwidget.h"
#include "qscreen_qws.h"
#include "private/qapplication_p.h"
QT_BEGIN_NAMESPACE
QT_USE_NAMESPACE
QDesktopWidget::QDesktopWidget()
: QWidget(0, Qt::Desktop)
{
setObjectName(QLatin1String("desktop"));
}
QDesktopWidget::~QDesktopWidget()
{
}
bool QDesktopWidget::isVirtualDesktop() const
{
return true;
}
int QDesktopWidget::primaryScreen() const
{
return 0;
}
int QDesktopWidget::numScreens() const
{
QScreen *screen = QScreen::instance();
if (!screen)
return 0;
const QList<QScreen*> subScreens = screen->subScreens();
return qMax(subScreens.size(), 1);
}
QWidget *QDesktopWidget::screen(int)
{
return this;
}
const QRect QDesktopWidget::availableGeometry(int screenNo) const
{
const QScreen *screen = QScreen::instance();
if (screenNo == -1)
screenNo = 0;
if (!screen || screenNo < 0)
return QRect();
const QList<QScreen*> subScreens = screen->subScreens();
if (!subScreens.isEmpty()) {
if (screenNo >= subScreens.size())
return QRect();
screen = subScreens.at(screenNo);
}
QApplicationPrivate *ap = QApplicationPrivate::instance();
const QRect r = ap->maxWindowRect(screen);
if (!r.isEmpty())
return r;
return screen->region().boundingRect();
}
const QRect QDesktopWidget::screenGeometry(int screenNo) const
{
const QScreen *screen = QScreen::instance();
if (screenNo == -1)
screenNo = 0;
if (!screen || screenNo < 0)
return QRect();
const QList<QScreen*> subScreens = screen->subScreens();
if (subScreens.size() == 0 && screenNo == 0)
return screen->region().boundingRect();
if (screenNo >= subScreens.size())
return QRect();
return subScreens.at(screenNo)->region().boundingRect();
}
int QDesktopWidget::screenNumber(const QWidget *w) const
{
if (!w)
return 0;
QRect frame = w->frameGeometry();
if (!w->isWindow())
frame.moveTopLeft(w->mapToGlobal(QPoint(0, 0)));
const QPoint midpoint = (frame.topLeft() + frame.bottomRight()) / 2;
return screenNumber(midpoint);
}
int QDesktopWidget::screenNumber(const QPoint &p) const
{
const QScreen *screen = QScreen::instance();
if (!screen || !screen->region().contains(p))
return -1;
const QList<QScreen*> subScreens = screen->subScreens();
if (subScreens.size() == 0)
return 0;
for (int i = 0; i < subScreens.size(); ++i)
if (subScreens.at(i)->region().contains(p))
return i;
return -1;
}
void QDesktopWidget::resizeEvent(QResizeEvent *)
{
}
QT_END_NAMESPACE
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