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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <qpixmap.h>
#include <qapplication.h>
#include <qwidget.h>
#include <qdesktopwidget.h>
#include <qscreen_qws.h>
#include <qwsdisplay_qws.h>
#include <private/qdrawhelper_p.h>
#include <private/qpixmap_raster_p.h>
QPixmap QPixmap::grabWindow(WId window, int x, int y, int w, int h)
{
QWidget *widget = QWidget::find(window);
if (!widget)
return QPixmap();
QRect grabRect = widget->frameGeometry();
if (!widget->isWindow())
grabRect.translate(widget->parentWidget()->mapToGlobal(QPoint()));
if (w < 0)
w = widget->width() - x;
if (h < 0)
h = widget->height() - y;
grabRect &= QRect(x, y, w, h).translated(widget->mapToGlobal(QPoint()));
QScreen *screen = qt_screen;
QDesktopWidget *desktop = QApplication::desktop();
if (!desktop)
return QPixmap();
if (desktop->numScreens() > 1) {
const int screenNo = desktop->screenNumber(widget);
if (screenNo != -1)
screen = qt_screen->subScreens().at(screenNo);
grabRect = grabRect.translated(-screen->region().boundingRect().topLeft());
}
if (screen->pixelFormat() == QImage::Format_Invalid) {
qWarning("QPixmap::grabWindow(): Unable to copy pixels from framebuffer");
return QPixmap();
}
if (screen->isTransformed()) {
const QSize screenSize(screen->width(), screen->height());
grabRect = screen->mapToDevice(grabRect, screenSize);
}
QWSDisplay::grab(false);
QPixmap pixmap;
QImage img(screen->base(),
screen->deviceWidth(), screen->deviceHeight(),
screen->linestep(), screen->pixelFormat());
img = img.copy(grabRect);
QWSDisplay::ungrab();
if (screen->isTransformed()) {
QMatrix matrix;
switch (screen->transformOrientation()) {
case 1: matrix.rotate(90); break;
case 2: matrix.rotate(180); break;
case 3: matrix.rotate(270); break;
default: break;
}
img = img.transformed(matrix);
}
if (screen->pixelType() == QScreen::BGRPixel)
img = img.rgbSwapped();
return QPixmap::fromImage(img);
}
QRgb* QPixmap::clut() const
{
if (data->classId() == QPixmapData::RasterClass) {
const QRasterPixmapData *d = static_cast<const QRasterPixmapData*>(data);
return d->image.colorTable().data();
}
return 0;
}
int QPixmap::numCols() const
{
if (data->classId() == QPixmapData::RasterClass) {
const QRasterPixmapData *d = static_cast<const QRasterPixmapData*>(data);
return d->image.numColors();
}
return 0;
}
const uchar* QPixmap::qwsBits() const
{
if (data->classId() == QPixmapData::RasterClass) {
const QRasterPixmapData *d = static_cast<const QRasterPixmapData*>(data);
return d->image.bits();
}
return 0;
}
int QPixmap::qwsBytesPerLine() const
{
if (data->classId() == QPixmapData::RasterClass) {
const QRasterPixmapData *d = static_cast<const QRasterPixmapData*>(data);
return d->image.bytesPerLine();
}
return 0;
}
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