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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qsystemdisplayinfo.h"
#include "qsysteminfocommon_p.h"
#include <QDesktopWidget>
#include <QMetaType>
QTM_BEGIN_NAMESPACE
Q_GLOBAL_STATIC(QSystemDisplayInfoPrivate, displayInfoPrivate)
#ifdef QT_SIMULATOR
QSystemDisplayInfoPrivate *getSystemDisplayInfoPrivate() { return displayInfoPrivate(); }
#endif // QT_SIMULATOR
/*!
\enum QSystemDisplayInfo::DisplayOrientation
This enum describes the orientation of the default window.
\value Unknown Unknown orientation or error.
\value Landscape Landscape is wider than high.
\value Portrait Portrait is higher than wide.
\value InvertedLandscape Landscape that is inverted.
\value InvertedPortrait Portrait that is inverted.
*/
/*!
\enum QSystemDisplayInfo::BacklightState
This enum describes the state of the Backlight.
\value BacklightStateUnknown Error, no, or unknown Backlight state.
\value BacklightStateOff Backlight is turned off.
\value BacklightStateDimmed Backlight has been dimmed.
\value BacklightStateOn Backlight is on.
*/
/*!
\class QSystemDisplayInfo
\ingroup systeminfo
\inmodule QtSystemInfo
\since 1.0
\brief The QSystemDisplayInfo class provides access to display information from the system.
\warning This class can only be used from the main thread, since it has been implemented using
GUI functionality.
*/
/*!
\fn void QSystemDisplayInfo::orientationChanged(QSystemDisplayInfo::DisplayOrientation orientation)
This signal is emitted when QDesktopWidget's orientation has changed to \a orientation.
*/
/*!
Constructs a QSystemDisplayInfo object with the given \a parent.
*/
QSystemDisplayInfo::QSystemDisplayInfo(QObject *parent)
: QObject(parent)
{
qRegisterMetaType<QSystemDisplayInfo::DisplayOrientation>("QSystemDisplayInfo::DisplayOrientation");
qRegisterMetaType<QSystemDisplayInfo::BacklightState>("QSystemDisplayInfo::BacklightState");
connect(displayInfoPrivate(), SIGNAL(orientationChanged(QSystemDisplayInfo::DisplayOrientation)),
this, SIGNAL(orientationChanged(QSystemDisplayInfo::DisplayOrientation)), Qt::UniqueConnection);
}
/*!
Destroys the QSystemDisplayInfo object.
*/
QSystemDisplayInfo::~QSystemDisplayInfo()
{
}
/*!
Returns the display brightness of the screen with index \a screenNumber, in 1 - 100 scale.
-1 is returned if not available or on error.
\sa QDesktopWidget::screenCount()
\since 1.0
*/
int QSystemDisplayInfo::displayBrightness(int screenNumber)
{
QDesktopWidget wid;
if (wid.screenCount() < 1 || wid.screenCount() - 1 < screenNumber)
return -1;
return displayInfoPrivate()->displayBrightness(screenNumber);
}
/*!
Returns the color depth of the screen with the index \a screenNumber, in bits per pixel.
-1 is returned if not available or on error.
\sa QDesktopWidget::screenCount()
\since 1.0
*/
int QSystemDisplayInfo::colorDepth(int screenNumber)
{
QDesktopWidget wid;
if (wid.screenCount() < 1 || wid.screenCount() - 1 < screenNumber)
return -1;
return displayInfoPrivate()->colorDepth(screenNumber);
}
/*!
Returns the orientation of the UI QDesktopWidget for \a screen.
\sa QDesktopWidget::screenCount()
\since 1.2
*/
QSystemDisplayInfo::DisplayOrientation QSystemDisplayInfo::orientation(int screen)
{
return displayInfoPrivate()->orientation(screen);
}
/*!
Returns the current contrast of the screen \a screen, from 0 to 1. -1 is returned if
not available or on error.
\sa QDesktopWidget::screenCount()
\since 1.2
*/
float QSystemDisplayInfo::contrast(int screen)
{
return displayInfoPrivate()->contrast(screen);
}
/*!
Returns the current dots per inch (DPI) for the width of \a screen. -1 is returned if
not available or on error.
\sa QDesktopWidget::screenCount()
\since 1.2
*/
int QSystemDisplayInfo::getDPIWidth(int screen)
{
return displayInfoPrivate()->getDPIWidth(screen);
}
/*!
Returns the dpi (Dot Per Inch) of the height os \a screen. -1 is returned if not available
or on error.
\sa QDesktopWidget::screenCount()
\since 1.2
*/
int QSystemDisplayInfo::getDPIHeight(int screen)
{
return displayInfoPrivate()->getDPIHeight(screen);
}
/*!
Returns the physical height of the \a screen in millimeters. -1 is returned if not available
or on error.
\sa QDesktopWidget::screenCount()
\since 1.2
*/
int QSystemDisplayInfo::physicalHeight(int screen)
{
return displayInfoPrivate()->physicalHeight(screen);
}
/*!
Returns the physical width of \a screen in millimeters. -1 is returned if not available or
on error.
\sa QDesktopWidget::screenCount()
\since 1.2
*/
int QSystemDisplayInfo::physicalWidth(int screen)
{
return displayInfoPrivate()->physicalWidth(screen);
}
/*!
Returns whether the QSystemDisplayInfo::BacklightState for the screen \a screen.
\since 1.2
*/
QSystemDisplayInfo::BacklightState QSystemDisplayInfo::backlightStatus(int screen)
{
return displayInfoPrivate()->backlightStatus(screen);
}
#include "moc_qsystemdisplayinfo.cpp"
QTM_END_NAMESPACE
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