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/*
* Copyright (C) 2006 Dirk Mueller <mueller@kde.org>
* Copyright (C) 2006 Zack Rusin <zack@kde.org>
* Copyright (C) 2006 Simon Hausmann <hausmann@kde.org>
* Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/
* Copyright (C) 2010 Sencha, Inc.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "Image.h"
#include "AffineTransform.h"
#include "BitmapImage.h"
#include "ContextShadow.h"
#include "FloatRect.h"
#include "GraphicsContext.h"
#include "ImageObserver.h"
#include "PlatformString.h"
#include "StillImageQt.h"
#include "qwebsettings.h"
#include <QPixmap>
#include <QPainter>
#include <QImage>
#include <QImageReader>
#include <QTransform>
#include <QDebug>
#include <math.h>
// This function loads resources into WebKit
static QPixmap loadResourcePixmap(const char *name)
{
QPixmap pixmap;
if (qstrcmp(name, "missingImage") == 0)
pixmap = QWebSettings::webGraphic(QWebSettings::MissingImageGraphic);
else if (qstrcmp(name, "nullPlugin") == 0)
pixmap = QWebSettings::webGraphic(QWebSettings::MissingPluginGraphic);
else if (qstrcmp(name, "urlIcon") == 0)
pixmap = QWebSettings::webGraphic(QWebSettings::DefaultFrameIconGraphic);
else if (qstrcmp(name, "textAreaResizeCorner") == 0)
pixmap = QWebSettings::webGraphic(QWebSettings::TextAreaSizeGripCornerGraphic);
else if (qstrcmp(name, "deleteButton") == 0)
pixmap = QWebSettings::webGraphic(QWebSettings::DeleteButtonGraphic);
else if (!qstrcmp(name, "inputSpeech"))
pixmap = QWebSettings::webGraphic(QWebSettings::InputSpeechButtonGraphic);
else if (!qstrcmp(name, "searchCancelButton"))
pixmap = QWebSettings::webGraphic(QWebSettings::SearchCancelButtonGraphic);
else if (!qstrcmp(name, "searchCancelButtonPressed"))
pixmap = QWebSettings::webGraphic(QWebSettings::SearchCancelButtonPressedGraphic);
return pixmap;
}
namespace WebCore {
bool FrameData::clear(bool clearMetadata)
{
if (clearMetadata)
m_haveMetadata = false;
if (m_frame) {
delete m_frame;
m_frame = 0;
return true;
}
return false;
}
// ================================================
// Image Class
// ================================================
PassRefPtr<Image> Image::loadPlatformResource(const char* name)
{
return StillImage::create(loadResourcePixmap(name));
}
void Image::drawPattern(GraphicsContext* ctxt, const FloatRect& tileRect, const AffineTransform& patternTransform,
const FloatPoint& phase, ColorSpace, CompositeOperator op, const FloatRect& destRect)
{
QPixmap* framePixmap = nativeImageForCurrentFrame();
if (!framePixmap) // If it's too early we won't have an image yet.
return;
// Qt interprets 0 width/height as full width/height so just short circuit.
QRectF dr = QRectF(destRect).normalized();
QRect tr = QRectF(tileRect).toRect().normalized();
if (!dr.width() || !dr.height() || !tr.width() || !tr.height())
return;
QPixmap pixmap = *framePixmap;
if (tr.x() || tr.y() || tr.width() != pixmap.width() || tr.height() != pixmap.height())
pixmap = pixmap.copy(tr);
CompositeOperator previousOperator = ctxt->compositeOperation();
ctxt->setCompositeOperation(!pixmap.hasAlpha() && op == CompositeSourceOver ? CompositeCopy : op);
QPainter* p = ctxt->platformContext();
QTransform transform(patternTransform);
// If this would draw more than one scaled tile, we scale the pixmap first and then use the result to draw.
if (transform.type() == QTransform::TxScale) {
QRectF tileRectInTargetCoords = (transform * QTransform().translate(phase.x(), phase.y())).mapRect(tr);
bool tileWillBePaintedOnlyOnce = tileRectInTargetCoords.contains(dr);
if (!tileWillBePaintedOnlyOnce) {
QSizeF scaledSize(float(pixmap.width()) * transform.m11(), float(pixmap.height()) * transform.m22());
QPixmap scaledPixmap(scaledSize.toSize());
if (pixmap.hasAlpha())
scaledPixmap.fill(Qt::transparent);
{
QPainter painter(&scaledPixmap);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.setRenderHints(p->renderHints());
painter.drawPixmap(QRect(0, 0, scaledPixmap.width(), scaledPixmap.height()), pixmap);
}
pixmap = scaledPixmap;
transform = QTransform::fromTranslate(transform.dx(), transform.dy());
}
}
/* Translate the coordinates as phase is not in world matrix coordinate space but the tile rect origin is. */
transform *= QTransform().translate(phase.x(), phase.y());
transform.translate(tr.x(), tr.y());
QBrush b(pixmap);
b.setTransform(transform);
p->fillRect(dr, b);
ctxt->setCompositeOperation(previousOperator);
if (imageObserver())
imageObserver()->didDraw(this);
}
BitmapImage::BitmapImage(QPixmap* pixmap, ImageObserver* observer)
: Image(observer)
, m_currentFrame(0)
, m_frames(0)
, m_frameTimer(0)
, m_repetitionCount(cAnimationNone)
, m_repetitionCountStatus(Unknown)
, m_repetitionsComplete(0)
, m_isSolidColor(false)
, m_checkedForSolidColor(false)
, m_animationFinished(true)
, m_allDataReceived(true)
, m_haveSize(true)
, m_sizeAvailable(true)
, m_decodedSize(0)
, m_haveFrameCount(true)
, m_frameCount(1)
{
initPlatformData();
int width = pixmap->width();
int height = pixmap->height();
m_decodedSize = width * height * 4;
m_size = IntSize(width, height);
m_frames.grow(1);
m_frames[0].m_frame = pixmap;
m_frames[0].m_hasAlpha = pixmap->hasAlpha();
m_frames[0].m_haveMetadata = true;
checkForSolidColor();
}
void BitmapImage::initPlatformData()
{
}
void BitmapImage::invalidatePlatformData()
{
}
// Drawing Routines
void BitmapImage::draw(GraphicsContext* ctxt, const FloatRect& dst,
const FloatRect& src, ColorSpace styleColorSpace, CompositeOperator op)
{
QRectF normalizedDst = dst.normalized();
QRectF normalizedSrc = src.normalized();
startAnimation();
if (normalizedSrc.isEmpty() || normalizedDst.isEmpty())
return;
QPixmap* image = nativeImageForCurrentFrame();
if (!image)
return;
if (mayFillWithSolidColor()) {
fillWithSolidColor(ctxt, normalizedDst, solidColor(), styleColorSpace, op);
return;
}
CompositeOperator previousOperator = ctxt->compositeOperation();
ctxt->setCompositeOperation(!image->hasAlpha() && op == CompositeSourceOver ? CompositeCopy : op);
ContextShadow* shadow = ctxt->contextShadow();
if (shadow->m_type != ContextShadow::NoShadow) {
QPainter* shadowPainter = shadow->beginShadowLayer(ctxt, normalizedDst);
if (shadowPainter) {
shadowPainter->setOpacity(static_cast<qreal>(shadow->m_color.alpha()) / 255);
shadowPainter->drawPixmap(normalizedDst, *image, normalizedSrc);
shadow->endShadowLayer(ctxt);
}
}
ctxt->platformContext()->drawPixmap(normalizedDst, *image, normalizedSrc);
ctxt->setCompositeOperation(previousOperator);
if (imageObserver())
imageObserver()->didDraw(this);
}
void BitmapImage::checkForSolidColor()
{
m_isSolidColor = false;
m_checkedForSolidColor = true;
if (frameCount() > 1)
return;
QPixmap* framePixmap = frameAtIndex(0);
if (!framePixmap || framePixmap->width() != 1 || framePixmap->height() != 1)
return;
m_isSolidColor = true;
m_solidColor = QColor::fromRgba(framePixmap->toImage().pixel(0, 0));
}
#if OS(WINDOWS)
PassRefPtr<BitmapImage> BitmapImage::create(HBITMAP hBitmap)
{
return BitmapImage::create(new QPixmap(QPixmap::fromWinHBITMAP(hBitmap)));
}
#endif
}
// vim: ts=4 sw=4 et
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