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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qpixmap.h"
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#include "qpixmap_raster_p.h"
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#include "qnativeimage_p.h"
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#include "qimage_p.h"
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#include "qbitmap.h"
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#include "qimage.h"
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#include <private/qwidget_p.h>
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#include <private/qdrawhelper_p.h>
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QT_BEGIN_NAMESPACE
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const uchar qt_pixmap_bit_mask[] = { 0x01, 0x02, 0x04, 0x08,
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0x10, 0x20, 0x40, 0x80 };
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QPixmap qt_toRasterPixmap(const QImage &image)
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{
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QPixmapData *data =
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new QRasterPixmapData(image.depth() == 1
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? QPixmapData::BitmapType
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: QPixmapData::PixmapType);
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data->fromImage(image, Qt::AutoColor);
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return QPixmap(data);
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}
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QPixmap qt_toRasterPixmap(const QPixmap &pixmap)
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{
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if (pixmap.isNull())
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return QPixmap();
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if (QPixmap(pixmap).data_ptr()->classId() == QPixmapData::RasterClass)
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return pixmap;
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return qt_toRasterPixmap(pixmap.toImage());
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}
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QRasterPixmapData::QRasterPixmapData(PixelType type)
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: QPixmapData(type, RasterClass)
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{
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}
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QRasterPixmapData::~QRasterPixmapData()
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{
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}
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QPixmapData *QRasterPixmapData::createCompatiblePixmapData() const
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{
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return new QRasterPixmapData(pixelType());
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}
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void QRasterPixmapData::resize(int width, int height)
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{
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QImage::Format format;
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#ifdef Q_WS_QWS
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if (pixelType() == BitmapType) {
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format = QImage::Format_Mono;
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} else {
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format = QScreen::instance()->pixelFormat();
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if (format == QImage::Format_Invalid)
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format = QImage::Format_ARGB32_Premultiplied;
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else if (format == QImage::Format_Indexed8) // currently not supported
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format = QImage::Format_RGB444;
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}
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#else
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if (pixelType() == BitmapType)
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format = QImage::Format_MonoLSB;
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else
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format = QNativeImage::systemFormat();
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#endif
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image = QImage(width, height, format);
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w = width;
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h = height;
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d = image.depth();
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is_null = (w <= 0 || h <= 0);
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if (pixelType() == BitmapType && !image.isNull()) {
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image.setNumColors(2);
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image.setColor(0, QColor(Qt::color0).rgba());
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image.setColor(1, QColor(Qt::color1).rgba());
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}
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setSerialNumber(image.serialNumber());
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}
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void QRasterPixmapData::fromImage(const QImage &sourceImage,
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Qt::ImageConversionFlags flags)
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{
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Q_UNUSED(flags);
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#ifdef Q_WS_QWS
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QImage::Format format;
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if (pixelType() == BitmapType) {
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format = QImage::Format_Mono;
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} else {
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format = QScreen::instance()->pixelFormat();
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if (format == QImage::Format_Invalid)
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format = QImage::Format_ARGB32_Premultiplied;
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else if (format == QImage::Format_Indexed8) // currently not supported
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format = QImage::Format_RGB444;
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}
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if (sourceImage.hasAlphaChannel()
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&& ((flags & Qt::NoOpaqueDetection)
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|| const_cast<QImage &>(sourceImage).data_ptr()->checkForAlphaPixels())) {
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switch (format) {
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case QImage::Format_RGB16:
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format = QImage::Format_ARGB8565_Premultiplied;
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break;
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case QImage::Format_RGB666:
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format = QImage::Format_ARGB6666_Premultiplied;
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break;
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case QImage::Format_RGB555:
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format = QImage::Format_ARGB8555_Premultiplied;
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break;
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case QImage::Format_RGB444:
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format = QImage::Format_ARGB4444_Premultiplied;
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break;
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default:
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format = QImage::Format_ARGB32_Premultiplied;
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break;
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}
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} else if (format == QImage::Format_Invalid) {
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format = QImage::Format_ARGB32_Premultiplied;
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}
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image = sourceImage.convertToFormat(format);
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#else
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if (pixelType() == BitmapType) {
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image = sourceImage.convertToFormat(QImage::Format_MonoLSB);
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} else {
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if (sourceImage.depth() == 1) {
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image = sourceImage.hasAlphaChannel()
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? sourceImage.convertToFormat(QImage::Format_ARGB32_Premultiplied)
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: sourceImage.convertToFormat(QImage::Format_RGB32);
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} else {
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QImage::Format opaqueFormat = QNativeImage::systemFormat();
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QImage::Format alphaFormat = QImage::Format_ARGB32_Premultiplied;
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switch (opaqueFormat) {
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case QImage::Format_RGB16:
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alphaFormat = QImage::Format_ARGB8565_Premultiplied;
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break;
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default: // We don't care about the others...
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break;
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}
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if (!sourceImage.hasAlphaChannel()
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|| ((flags & Qt::NoOpaqueDetection) == 0
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&& !const_cast<QImage &>(sourceImage).data_ptr()->checkForAlphaPixels())) {
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image = sourceImage.convertToFormat(opaqueFormat);
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} else {
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image = sourceImage.convertToFormat(alphaFormat);
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}
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}
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}
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#endif
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if (image.d) {
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w = image.d->width;
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h = image.d->height;
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d = image.d->depth;
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} else {
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w = h = d = 0;
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}
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is_null = (w <= 0 || h <= 0);
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setSerialNumber(image.serialNumber());
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}
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// from qwindowsurface.cpp
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extern void qt_scrollRectInImage(QImage &img, const QRect &rect, const QPoint &offset);
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bool QRasterPixmapData::scroll(int dx, int dy, const QRect &rect)
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{
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if (!image.isNull())
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qt_scrollRectInImage(image, rect, QPoint(dx, dy));
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return true;
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}
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void QRasterPixmapData::fill(const QColor &color)
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{
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uint pixel;
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if (image.depth() == 1) {
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int gray = qGray(color.rgba());
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// Pick the best approximate color in the image's colortable.
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if (qAbs(qGray(image.color(0)) - gray) < qAbs(qGray(image.color(1)) - gray))
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pixel = 0;
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else
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pixel = 1;
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} else if (image.depth() >= 15) {
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int alpha = color.alpha();
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if (alpha != 255) {
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if (!image.hasAlphaChannel()) {
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QImage::Format toFormat;
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if (image.format() == QImage::Format_RGB16)
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toFormat = QImage::Format_ARGB8565_Premultiplied;
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else if (image.format() == QImage::Format_RGB666)
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toFormat = QImage::Format_ARGB6666_Premultiplied;
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else if (image.format() == QImage::Format_RGB555)
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toFormat = QImage::Format_ARGB8555_Premultiplied;
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else if (image.format() == QImage::Format_RGB444)
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toFormat = QImage::Format_ARGB4444_Premultiplied;
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else
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toFormat = QImage::Format_ARGB32_Premultiplied;
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image = QImage(image.width(), image.height(), toFormat);
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}
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switch (image.format()) {
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case QImage::Format_ARGB8565_Premultiplied:
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pixel = qargb8565(color.rgba()).rawValue();
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break;
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case QImage::Format_ARGB8555_Premultiplied:
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pixel = qargb8555(color.rgba()).rawValue();
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break;
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case QImage::Format_ARGB6666_Premultiplied:
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pixel = qargb6666(color.rgba()).rawValue();
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break;
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case QImage::Format_ARGB4444_Premultiplied:
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pixel = qargb4444(color.rgba()).rawValue();
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break;
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default:
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pixel = PREMUL(color.rgba());
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break;
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}
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} else {
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switch (image.format()) {
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case QImage::Format_RGB16:
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pixel = qt_colorConvert<quint16, quint32>(color.rgba(), 0);
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break;
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case QImage::Format_RGB444:
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pixel = qrgb444(color.rgba()).rawValue();
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break;
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case QImage::Format_RGB555:
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pixel = qrgb555(color.rgba()).rawValue();
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break;
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case QImage::Format_RGB666:
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pixel = qrgb666(color.rgba()).rawValue();
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break;
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case QImage::Format_RGB888:
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pixel = qrgb888(color.rgba()).rawValue();
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break;
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default:
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pixel = color.rgba();
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break;
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}
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}
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} else {
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pixel = 0;
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// ### what about 8 bits
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}
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image.fill(pixel);
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}
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void QRasterPixmapData::setMask(const QBitmap &mask)
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{
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if (mask.size().isEmpty()) {
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if (image.depth() != 1) { // hw: ????
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image = image.convertToFormat(QImage::Format_RGB32);
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}
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} else {
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const int w = image.width();
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const int h = image.height();
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switch (image.depth()) {
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case 1: {
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const QImage imageMask = mask.toImage().convertToFormat(image.format());
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for (int y = 0; y < h; ++y) {
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const uchar *mscan = imageMask.scanLine(y);
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uchar *tscan = image.scanLine(y);
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int bytesPerLine = image.bytesPerLine();
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for (int i = 0; i < bytesPerLine; ++i)
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tscan[i] &= mscan[i];
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}
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break;
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}
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default: {
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const QImage imageMask = mask.toImage().convertToFormat(QImage::Format_MonoLSB);
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image = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
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for (int y = 0; y < h; ++y) {
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const uchar *mscan = imageMask.scanLine(y);
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QRgb *tscan = (QRgb *)image.scanLine(y);
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for (int x = 0; x < w; ++x) {
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if (!(mscan[x>>3] & qt_pixmap_bit_mask[x&7]))
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tscan[x] = 0;
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}
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}
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break;
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}
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}
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}
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}
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bool QRasterPixmapData::hasAlphaChannel() const
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{
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return image.hasAlphaChannel();
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}
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QImage QRasterPixmapData::toImage() const
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{
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return image;
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}
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void QRasterPixmapData::setAlphaChannel(const QPixmap &alphaChannel)
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{
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image.setAlphaChannel(alphaChannel.toImage());
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}
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QPaintEngine* QRasterPixmapData::paintEngine() const
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{
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return image.paintEngine();
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}
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extern int qt_defaultDpiX();
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extern int qt_defaultDpiY();
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int QRasterPixmapData::metric(QPaintDevice::PaintDeviceMetric metric) const
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{
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QImageData *d = image.d;
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if (!d)
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return 0;
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// override the image dpi with the screen dpi when rendering to a pixmap
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switch (metric) {
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case QPaintDevice::PdmWidth:
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return w;
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case QPaintDevice::PdmHeight:
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return h;
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case QPaintDevice::PdmWidthMM:
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return qRound(d->width * 25.4 / qt_defaultDpiX());
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case QPaintDevice::PdmHeightMM:
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return qRound(d->width * 25.4 / qt_defaultDpiY());
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case QPaintDevice::PdmNumColors:
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return d->colortable.size();
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case QPaintDevice::PdmDepth:
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return this->d;
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case QPaintDevice::PdmDpiX: // fall-through
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case QPaintDevice::PdmPhysicalDpiX:
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return qt_defaultDpiX();
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case QPaintDevice::PdmDpiY: // fall-through
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case QPaintDevice::PdmPhysicalDpiY:
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return qt_defaultDpiY();
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default:
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qWarning("QRasterPixmapData::metric(): Unhandled metric type %d", metric);
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break;
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}
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return 0;
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}
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QImage* QRasterPixmapData::buffer()
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{
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return ℑ
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}
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QT_END_NAMESPACE
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