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/*
Copyright (C) 2002-2003 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 <kdebug.h>
#include <qregexp.h>
#include "SVGRectImpl.h"
#include "SVGMatrixImpl.h"
#include "SVGHelperImpl.h"
#include "SVGElementImpl.h"
#include "SVGDocumentImpl.h"
#include "SVGStylableImpl.h"
#include "SVGTransformImpl.h"
#include "SVGStringListImpl.h"
#include "SVGSVGElementImpl.h"
#include "SVGTransformListImpl.h"
#include "SVGTransformableImpl.h"
#include "SVGAnimatedLengthImpl.h"
#include "SVGAnimatedLengthListImpl.h"
#include "KSVGCanvas.h"
#include "CanvasItem.h"
using namespace KSVG;
#include "ksvg_ecma.h"
#include "ksvg_window.h"
SVGHelperImpl::SVGHelperImpl()
{
}
SVGHelperImpl::~SVGHelperImpl()
{
}
void SVGHelperImpl::updateItem(KJS::ExecState *exec, const DOM::Node node)
{
// Get document
SVGDocumentImpl *doc = Window::retrieveActive(exec)->doc();
// Update canvas, recursively if needed
SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(doc->getElementFromHandle(node.handle()));
if(shape && shape->item())
{
shape->item()->update(UPDATE_TRANSFORM);
shape->item()->draw();
shape->blit(doc->canvas());
}
if(const_cast<DOM::Node &>(node).hasChildNodes())
{
DOM::Node iterate = node.firstChild();
for(; !iterate.isNull(); iterate = iterate.nextSibling())
updateItem(exec, iterate);
}
}
void SVGHelperImpl::copyAttributes(SVGElementImpl *src, SVGElementImpl *dst)
{
QDictIterator<DOM::DOMString> it(src->attributes());
for(; it.current(); ++it)
{
DOM::DOMString name = it.currentKey();
DOM::DOMString value = it.current()->string();
if(name != "id" && !dst->hasAttribute(name))
{
dst->setAttribute(name, value);
dst->setAttributeInternal(name, value);
}
}
}
void SVGHelperImpl::parseList(SVGStringListImpl *list, char seperator, const QString &data)
{
// TODO : more error checking/reporting
list->clear();
QStringList substrings = QStringList::split(seperator, data);
QStringList::ConstIterator it = substrings.begin();
QStringList::ConstIterator end = substrings.end();
for(; it != end; ++it)
{
SharedString *string = new SharedString(*it);
string->ref();
list->appendItem(string);
}
}
void SVGHelperImpl::parseLengthList(SVGAnimatedLengthListImpl *list, const QString &lengths, LengthMode mode, SVGElementImpl *object)
{
// get either comma or space delimited lists
// TODO : more error checking/reporting
QStringList sublengths = QStringList::split(QRegExp("[, ]"), lengths);
QStringList::ConstIterator it = sublengths.begin();
QStringList::ConstIterator end = sublengths.end();
SVGLengthImpl *lengthImpl = 0;
for(; it != end; ++it)
{
lengthImpl = new SVGLengthImpl(mode, object);
lengthImpl->ref();
lengthImpl->setValueAsString(*it);
list->baseVal()->appendItem(lengthImpl);
}
}
void SVGHelperImpl::parseCommaSeperatedList(SVGStringListImpl *list, const QString &data)
{
parseList(list, ',', data);
}
void SVGHelperImpl::parseSemicolonSeperatedList(SVGStringListImpl *list, const QString &data)
{
parseList(list, ';', data);
}
void SVGHelperImpl::parseTransformAttribute(SVGTransformListImpl *list, const QString &transform)
{
// Split string for handling 1 transform statement at a time
QStringList subtransforms = QStringList::split(')', transform);
QStringList::ConstIterator it = subtransforms.begin();
QStringList::ConstIterator end = subtransforms.end();
for(; it != end; ++it)
{
QStringList subtransform = QStringList::split('(', (*it));
subtransform[0] = subtransform[0].stripWhiteSpace().lower();
subtransform[1] = subtransform[1].simplifyWhiteSpace();
QRegExp reg("([-]?\\d*\\.?\\d+(?:e[-]?\\d+)?)");
int pos = 0;
QStringList params;
while(pos >= 0)
{
pos = reg.search(subtransform[1], pos);
if(pos != -1)
{
params += reg.cap(1);
pos += reg.matchedLength();
}
}
if(subtransform[0].startsWith(";") || subtransform[0].startsWith(","))
subtransform[0] = subtransform[0].right(subtransform[0].length() - 1);
SVGTransformImpl *t = SVGSVGElementImpl::createSVGTransform();
if(subtransform[0] == "rotate")
{
if(params.count() == 3)
t->setRotate(params[0].toDouble(),
params[1].toDouble(),
params[2].toDouble());
else
t->setRotate(params[0].toDouble(), 0, 0);
}
else if(subtransform[0] == "translate")
{
if(params.count() == 2)
t->setTranslate(params[0].toDouble(), params[1].toDouble());
else // Spec : if only one param given, assume 2nd param to be 0
t->setTranslate(params[0].toDouble(), 0);
}
else if(subtransform[0] == "scale")
{
if(params.count() == 2)
t->setScale(params[0].toDouble(), params[1].toDouble());
else // Spec : if only one param given, assume uniform scaling
t->setScale(params[0].toDouble(), params[0].toDouble());
}
else if(subtransform[0] == "skewx")
t->setSkewX(params[0].toDouble());
else if(subtransform[0] == "skewy")
t->setSkewY(params[0].toDouble());
else if(subtransform[0] == "matrix")
{
if(params.count() >= 6)
{
SVGMatrixImpl *ret = new SVGMatrixImpl(params[0].toDouble(),
params[1].toDouble(),
params[2].toDouble(),
params[3].toDouble(),
params[4].toDouble(),
params[5].toDouble());
t->setMatrix(ret);
}
}
list->appendItem(t);
}
}
/// convert from user space to "real" pixels on rendering area
QRect SVGHelperImpl::fromUserspace(SVGElementImpl *obj, const QRect &r)
{
QRect sr;
SVGLocatableImpl *locate = dynamic_cast<SVGLocatableImpl *>(obj);
if(locate)
sr = locate->screenCTM()->qmatrix().mapRect(r);
return sr;
}
// vim:ts=4:noet
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