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tdegraphics/ksvg/impl/SVGImageElementImpl.cc

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/*
Copyright (C) 2001-2003 KSVG Team
This file is part of the KDE project
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <tqimage.h>
#include <tqtimer.h>
#include <kdebug.h>
#include "CanvasItem.h"
#include "KSVGCanvas.h"
#include "KSVGHelper.h"
#include "SVGRectImpl.h"
#include "SVGEventImpl.h"
#include "SVGMatrixImpl.h"
#include "SVGHelperImpl.h"
#include "SVGDocumentImpl.h"
#include "SVGTransformImpl.h"
#include "SVGSVGElementImpl.h"
#include "SVGTransformListImpl.h"
#include "SVGAnimatedStringImpl.h"
#include "SVGAnimatedLengthImpl.h"
#include "SVGImageElementImpl.moc"
#include "SVGColorProfileElementImpl.h"
#include "SVGPreserveAspectRatioImpl.h"
#include "SVGAnimatedTransformListImpl.h"
#include "SVGAnimatedPreserveAspectRatioImpl.h"
#include "SVGPatternElementImpl.h"
using namespace KSVG;
#include "SVGImageElementImpl.lut.h"
#include "ksvg_scriptinterpreter.h"
#include "ksvg_bridge.h"
#include "ksvg_ecma.h"
SVGImageElementImpl::SVGImageElementImpl(DOM::ElementImpl *impl) : TQObject(), SVGShapeImpl(impl), SVGURIReferenceImpl(), SVGTestsImpl(), SVGLangSpaceImpl(), SVGExternalResourcesRequiredImpl(), SVGStylableImpl(this), SVGTransformableImpl()
{
KSVG_EMPTY_FLAGS
m_x = new SVGAnimatedLengthImpl(LENGTHMODE_WIDTH, this);
m_x->ref();
m_x->baseVal()->setValueAsString("-1");
m_y = new SVGAnimatedLengthImpl(LENGTHMODE_HEIGHT, this);
m_y->ref();
m_y->baseVal()->setValueAsString("-1");
m_width = new SVGAnimatedLengthImpl(LENGTHMODE_WIDTH, this);
m_width->ref();
m_width->baseVal()->setValueAsString("-1");
m_height = new SVGAnimatedLengthImpl(LENGTHMODE_HEIGHT, this);
m_height->ref();
m_height->baseVal()->setValueAsString("-1");
m_preserveAspectRatio = 0;
m_doc = 0;
m_image = 0;
m_svgRoot = 0;
m_colorProfile = 0;
m_colorProfileApplied = false;
}
SVGImageElementImpl::~SVGImageElementImpl()
{
if(m_x)
m_x->deref();
if(m_y)
m_y->deref();
if(m_width)
m_width->deref();
if(m_height)
m_height->deref();
if(m_preserveAspectRatio)
m_preserveAspectRatio->deref();
if(m_doc)
m_doc->deref();
delete m_image;
}
SVGAnimatedLengthImpl *SVGImageElementImpl::x()
{
return m_x;
}
SVGAnimatedLengthImpl *SVGImageElementImpl::y()
{
return m_y;
}
SVGAnimatedLengthImpl *SVGImageElementImpl::width()
{
return m_width;
}
SVGAnimatedLengthImpl *SVGImageElementImpl::height()
{
return m_height;
}
SVGAnimatedPreserveAspectRatioImpl *SVGImageElementImpl::preserveAspectRatio() const
{
return m_preserveAspectRatio;
}
/*
@namespace KSVG
@namespace KSVG
@begin SVGImageElementImpl::s_hashTable 7
x SVGImageElementImpl::X DontDelete|ReadOnly
y SVGImageElementImpl::Y DontDelete|ReadOnly
width SVGImageElementImpl::Width DontDelete|ReadOnly
height SVGImageElementImpl::Height DontDelete|ReadOnly
preserveAspectRatio SVGImageElementImpl::PreserveAspectRatio DontDelete|ReadOnly
href SVGImageElementImpl::Href DontDelete|ReadOnly
@end
*/
Value SVGImageElementImpl::getValueProperty(ExecState *exec, int token) const
{
KSVG_CHECK_ATTRIBUTE
switch(token)
{
case X:
if(!attributeMode)
return m_x->cache(exec);
else
return Number(m_x->baseVal()->value());
case Y:
if(!attributeMode)
return m_y->cache(exec);
else
return Number(m_y->baseVal()->value());
case Width:
if(!attributeMode)
return m_width->cache(exec);
else
return Number(m_width->baseVal()->value());
case Height:
if(!attributeMode)
return m_height->cache(exec);
else
return Number(m_height->baseVal()->value());
case PreserveAspectRatio:
if(m_preserveAspectRatio)
return m_preserveAspectRatio->cache(exec);
else
return Undefined();
case Href:
SVGURIReferenceImpl::getValueProperty(exec, token);
default:
kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
return Undefined();
}
}
void SVGImageElementImpl::putValueProperty(ExecState *exec, int token, const Value &value, int attr)
{
// This class has just ReadOnly properties, only with the Internal flag set
// it's allowed to modify those.
if(!(attr & KJS::Internal))
return;
switch(token)
{
case X:
x()->baseVal()->setValueAsString(value.toString(exec).qstring());
break;
case Y:
y()->baseVal()->setValueAsString(value.toString(exec).qstring());
break;
case Width:
width()->baseVal()->setValueAsString(value.toString(exec).qstring());
break;
case Height:
height()->baseVal()->setValueAsString(value.toString(exec).qstring());
break;
case PreserveAspectRatio:
if(!preserveAspectRatio())
{
m_preserveAspectRatio = new SVGAnimatedPreserveAspectRatioImpl();
m_preserveAspectRatio->ref();
}
preserveAspectRatio()->baseVal()->parsePreserveAspectRatio(value.toString(exec).qstring());
break;
case Href:
SVGURIReferenceImpl::putValueProperty(exec, SVGURIReferenceImpl::Href, value, attr);
break;
default:
kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
}
}
SVGRectImpl *SVGImageElementImpl::getBBox()
{
SVGRectImpl *ret = SVGSVGElementImpl::createSVGRect();
ret->setX(m_x->baseVal()->value());
ret->setY(m_y->baseVal()->value());
ret->setWidth(m_width->baseVal()->value());
ret->setHeight(m_height->baseVal()->value());
return ret;
}
void SVGImageElementImpl::setAttributes()
{
SVGElementImpl::setAttributes();
if(KSVG_TOKEN_NOT_PARSED(X))
KSVG_SET_ALT_ATTRIBUTE(X, "0")
if(KSVG_TOKEN_NOT_PARSED(Y))
KSVG_SET_ALT_ATTRIBUTE(Y, "0")
if(KSVG_TOKEN_NOT_PARSED(PreserveAspectRatio))
{
setAttribute("preserveAspectRatio", "xMidYMid meet");
KSVG_SET_ALT_ATTRIBUTE(PreserveAspectRatio, "xMidYMid meet")
}
}
void SVGImageElementImpl::slotParsingFinished(bool error, const TQString &errorDesc)
{
if(error)
kdDebug(26003) << "Finished with error : " << errorDesc << endl;
else
kdDebug(26003) << "Finished without errors!" << endl;
m_svgRoot = m_doc->rootElement();
}
void SVGImageElementImpl::slotLoadingFinished()
{
ownerDoc()->notifyImageLoaded(this);
}
void SVGImageElementImpl::createItem(KSVGCanvas *c)
{
if(!m_item)
{
if(!c)
c = ownerDoc()->canvas();
m_item = c->createImage(this);
c->insert(m_item);
if(href()->baseVal().string().endsWith(".svg") || href()->baseVal().string().endsWith(".svgz"))
{
if(!m_svgRoot)
{
m_doc = new SVGDocumentImpl(true, false, this);
m_doc->ref();
m_doc->attach(c);
connect(m_doc, TQT_SIGNAL(finishedParsing(bool, const TQString &)), this, TQT_SLOT(slotParsingFinished(bool, const TQString &)));
connect(m_doc, TQT_SIGNAL(finishedLoading()), this, TQT_SLOT(slotLoadingFinished()));
KURL file;
if(!KURL::isRelativeURL(href()->baseVal().string()))
file = KURL(href()->baseVal().string());
else
file = KURL(ownerDoc()->baseUrl(), href()->baseVal().string());
m_doc->open(file);
// The svg image will add items to the canvas in parallel with the main
// document, so the z-order will not be correct. Get it to fix this when everything's
// finished loading.
ownerDoc()->resortZIndicesOnFinishedLoading();
ownerDoc()->notifyImageLoading(this);
}
else
m_svgRoot->createItem(c);
}
else
{
if(!m_image)
{
ownerDoc()->newImageJob(this);
ownerDoc()->notifyImageLoading(this);
}
}
}
}
void SVGImageElementImpl::removeItem(KSVGCanvas *c)
{
if(m_item && c)
{
if(m_svgRoot)
m_svgRoot->removeItem(c);
c->removeItem(m_item);
m_item = 0;
}
}
void SVGImageElementImpl::setupSVGElement(SVGSVGElementImpl *svg)
{
// Set up the root svg for an svg image.
svg->setAttributeInternal("x", TQString("%1").tqarg(x()->baseVal()->value()));
svg->setAttributeInternal("y", TQString("%1").tqarg(y()->baseVal()->value()));
svg->setAttributeInternal("width", TQString("%1").tqarg(width()->baseVal()->value()));
svg->setAttributeInternal("height", TQString("%1").tqarg(height()->baseVal()->value()));
TQString par = getAttribute("preserveAspectRatio").string().stripWhiteSpace();
if(par.startsWith("defer"))
{
if(svg->getAttribute("preserveAspectRatio").isEmpty())
{
par.remove("defer");
svg->setAttribute("preserveAspectRatio", par);
svg->setAttributeInternal("preserveAspectRatio", par);
}
}
else
{
svg->setAttribute("preserveAspectRatio", par);
svg->setAttributeInternal("preserveAspectRatio", par);
}
svg->setAttributes();
svg->setRootParentScreenCTM(getScreenCTM());
}
void SVGImageElementImpl::onScreenCTMUpdated()
{
if(m_svgRoot)
{
SVGMatrixImpl *ctm = getScreenCTM();
m_svgRoot->setRootParentScreenCTM(ctm);
m_svgRoot->invalidateCachedMatrices();
m_svgRoot->ownerDoc()->syncCachedMatrices();
}
}
bool SVGImageElementImpl::prepareMouseEvent(const TQPoint &p, const TQPoint &, SVGMouseEventImpl *mev)
{
// TODO : pointer-events should be stored here, not in SVGStylableImpl.
SVGStylableImpl *style = dynamic_cast<SVGStylableImpl *>(this);
if(!style || style->getPointerEvents() == PE_NONE)
return false;
bool test = true;
switch(style->getPointerEvents())
{
case PE_VISIBLE:
case PE_VISIBLE_PAINTED:
case PE_VISIBLE_FILL:
case PE_VISIBLE_STROKE: test = style->getVisible(); break;
case PE_PAINTED:
case PE_FILL:
case PE_STROKE:
case PE_ALL: break;
default: test = false;
};
if(test && m_item)
{
if(m_item->bbox().tqcontains(p))
{
mev->setTarget(dynamic_cast<SVGElementImpl *>(this));
return true;
}
}
return false;
}
void SVGImageElementImpl::setImage(TQImage *image)
{
m_image = image;
if(m_image)
{
*m_image = m_image->convertDepth(32);
if(m_colorProfile != 0 && !m_colorProfileApplied)
{
m_colorProfileApplied = true;
applyColorProfile();
}
SVGPatternElementImpl::flushCachedTiles();
if(m_item)
{
ownerDoc()->canvas()->tqinvalidate(m_item, false);
ownerDoc()->rerender();
}
}
ownerDoc()->notifyImageLoaded(this);
}
TQImage SVGImageElementImpl::scaledImage()
{
SVGMatrixImpl *matrix = imageMatrix();
double sx, sy;
matrix->removeScale(&sx, &sy);
matrix->deref();
TQImage img;
if(sx != 1 || sy != 1)
{
int scaledWidth = static_cast<int>(m_image->width() * sx + 0.5);
int scaledHeight = static_cast<int>(m_image->height() * sy + 0.5);
img = m_image->smoothScale(scaledWidth, scaledHeight);
}
else
img = *m_image;
return img;
}
SVGMatrixImpl *SVGImageElementImpl::imageMatrix()
{
SVGMatrixImpl *ctm = getScreenCTM();
ctm->translate(x()->baseVal()->value(), y()->baseVal()->value());
SVGMatrixImpl *viewboxMatrix = preserveAspectRatio()->baseVal()->getCTM(0, 0, image()->width(), image()->height(), 0, 0, width()->baseVal()->value(), height()->baseVal()->value());
ctm->multiply(viewboxMatrix);
viewboxMatrix->deref();
return ctm;
}
SVGMatrixImpl *SVGImageElementImpl::scaledImageMatrix()
{
SVGMatrixImpl *matrix = imageMatrix();
double sx, sy;
matrix->removeScale(&sx, &sy);
if(sx != 1 || sy != 1)
{
int imageWidth = static_cast<int>(m_image->width() * sx + 0.5);
int imageHeight = static_cast<int>(m_image->height() * sy + 0.5);
double trueWidth = m_image->width() * sx;
double trueHeight = m_image->height() * sy;
matrix->scaleNonUniform(trueWidth / imageWidth, trueHeight / imageHeight);
}
return matrix;
}
KSVGPolygon SVGImageElementImpl::clippingShape()
{
KSVGRectangle viewport(0, 0, width()->baseVal()->value(), height()->baseVal()->value());
SVGMatrixImpl *matrix = preserveAspectRatio()->baseVal()->getCTM(0, 0, image()->width(), image()->height(), 0, 0, width()->baseVal()->value(), height()->baseVal()->value());
KSVGPolygon p = matrix->inverseMap(viewport);
matrix->deref();
matrix = imageMatrix();
p = matrix->map(p);
matrix->deref();
return p;
}
TQString SVGImageElementImpl::fileName() const
{
return href()->baseVal().string();
}
void SVGImageElementImpl::applyColorProfile()
{
m_image = m_colorProfile->correctImage(m_image);
}
void SVGImageElementImpl::applyColorProfile(SVGColorProfileElementImpl *profile, SVGImageElementImpl *image)
{
// Only apply once, if it's the same (Niko)
if(image->m_colorProfile == profile)
return;
image->m_colorProfile = profile;
if(image->m_image)
{
// Image is already painted, we apply the color profile and tqrepaint it
image->applyColorProfile();
if(image->item())
{
image->ownerDoc()->canvas()->tqinvalidate(image->item(), false);
image->ownerDoc()->rerender();
}
}
}
// vim:ts=4:noet