gecko-dev/widget/qt/nsScreenQt.cpp

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2000
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Lars Knoll <knoll@kde.org>
 *   Zack Rusin <zack@kde.org>
 *   John C. Griggs <johng@corel.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
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 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * the provisions above, a recipient may use your version of this file under
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#include <qcolor.h>
#include <qcolormap.h>
#include <qrect.h>
#include <qdesktopwidget.h>
#include <qapplication.h>
#include <QTransform>

#include "nsScreenQt.h"
#include "nsXULAppAPI.h"

#ifdef MOZ_ENABLE_QTMOBILITY
#include "mozqorientationsensorfilter.h"
#endif

#ifdef MOZ_ENABLE_QMSYSTEM2
#include <qmdisplaystate.h>
using namespace mozilla;

const int DISPLAY_BLANK_TIMEOUT = 10800; /*3 * 60 * 60 seconds*/
const int DISPLAY_DIM_TIMEOUT = 10620; /*3 * 59 * 60 seconds*/

#endif

nsScreenQt::nsScreenQt(int aScreen)
    : mScreen(aScreen)
#ifdef MOZ_ENABLE_QMSYSTEM2
    , mDisplayState(nsnull)
#endif
{
    // nothing else to do. I guess we could cache a bunch of information
    // here, but we want to ask the device at runtime in case anything
    // has changed.
}

nsScreenQt::~nsScreenQt()
{
#ifdef MOZ_ENABLE_QMSYSTEM2
    delete mDisplayState;
    mDisplayState = nsnull;
#endif
}

NS_IMETHODIMP
nsScreenQt::GetRect(PRInt32 *outLeft,PRInt32 *outTop,
                    PRInt32 *outWidth,PRInt32 *outHeight)
{
    QRect r = QApplication::desktop()->screenGeometry(mScreen);
#ifdef MOZ_ENABLE_QTMOBILITY
    r = MozQOrientationSensorFilter::GetRotationTransform().mapRect(r);
    // just rotating gives us weird negative coordinates, but we want to return
    // sensible logical coordinates
    r.moveTo(0, 0);
#endif

    *outTop = r.x();
    *outLeft = r.y();
    *outWidth = r.width();
    *outHeight = r.height();

    return NS_OK;
}

NS_IMETHODIMP
nsScreenQt::GetAvailRect(PRInt32 *outLeft,PRInt32 *outTop,
                         PRInt32 *outWidth,PRInt32 *outHeight)
{
    QRect r = QApplication::desktop()->screenGeometry(mScreen);
#ifdef MOZ_ENABLE_QTMOBILITY
    r = MozQOrientationSensorFilter::GetRotationTransform().mapRect(r);
#endif

    *outTop = r.x();
    *outLeft = r.y();
    *outWidth = r.width();
    *outHeight = r.height();

    return NS_OK;
}

NS_IMETHODIMP
nsScreenQt::GetPixelDepth(PRInt32 *aPixelDepth)
{
    // #############
    *aPixelDepth = (PRInt32)QColormap::instance().depth();
    return NS_OK;
}

NS_IMETHODIMP
nsScreenQt::GetColorDepth(PRInt32 *aColorDepth)
{
    // ###############
    return GetPixelDepth(aColorDepth);
}

#ifdef MOZ_ENABLE_QMSYSTEM2
void
nsScreenQt::ApplyMinimumBrightness(PRUint32 aType)
{
    // resets all we did before,
    // 1) there is no interface to get default values
    // 2) user might have changed system settings while fennec is running
    //    there is no notification about that.
    delete mDisplayState;
    mDisplayState = nsnull;

    if( aType == BRIGHTNESS_FULL) {
        mDisplayState = new MeeGo::QmDisplayState();

        // no way to keep display from blanking than setting a huge timeout
        // parameter is seconds. setting timeout to huge time this should work for 99.9% of our usecases
        mDisplayState->setDisplayBlankTimeout( DISPLAY_BLANK_TIMEOUT /*in seconds*/ );
        mDisplayState->setDisplayDimTimeout( DISPLAY_DIM_TIMEOUT /*in seconds*/ );
        mDisplayState->setDisplayBrightnessValue( mDisplayState->getMaxDisplayBrightnessValue() );
        mDisplayState->set(MeeGo::QmDisplayState::On);
     }
}
#endif