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/**************************************************************************** |
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** |
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** Copyright (C) 2011 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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|
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#include "qpixmap.h" |
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|
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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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|
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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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|
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QT_BEGIN_NAMESPACE |
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|
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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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|
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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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|
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data->fromImage(image, Qt::AutoColor); |
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|
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return QPixmap(data); |
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} |
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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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|
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if (QPixmap(pixmap).data_ptr()->classId() == QPixmapData::RasterClass) |
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return pixmap; |
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|
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return qt_toRasterPixmap(pixmap.toImage()); |
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} |
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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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|
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QRasterPixmapData::~QRasterPixmapData() |
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{ |
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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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|
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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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|
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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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|
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if (pixelType() == BitmapType && !image.isNull()) { |
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image.setColorCount(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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|
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setSerialNumber(image.serialNumber()); |
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} |
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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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|
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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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|
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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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|
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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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|
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QImage::Format opaqueFormat = QNativeImage::systemFormat(); |
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QImage::Format alphaFormat = QImage::Format_ARGB32_Premultiplied; |
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|
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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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|
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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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|
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setSerialNumber(image.serialNumber()); |
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} |
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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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|
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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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|
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void QRasterPixmapData::fill(const QColor &color) |
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{ |
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uint pixel; |
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|
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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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|
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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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|
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image.fill(pixel); |
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} |
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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Q_GUI_EXPORT extern int qt_defaultDpiX(); |
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Q_GUI_EXPORT extern int qt_defaultDpiY(); |
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|
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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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|
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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->height * 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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|
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return 0; |
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} |
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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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|
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QT_END_NAMESPACE |
