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-rw-r--r--ksvg/impl/SVGPatternElementImpl.cc509
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diff --git a/ksvg/impl/SVGPatternElementImpl.cc b/ksvg/impl/SVGPatternElementImpl.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 <kdebug.h>
+#include <klocale.h>
+
+#include "SVGPatternElement.h"
+#include "SVGPatternElementImpl.h"
+
+#include "CanvasFactory.h"
+#include "KSVGCanvas.h"
+#include "CanvasItems.h"
+#include "SVGHelperImpl.h"
+#include "SVGDocumentImpl.h"
+#include "SVGTransformListImpl.h"
+#include "SVGAnimatedTransformListImpl.h"
+#include "SVGAnimatedLengthImpl.h"
+#include "SVGAnimatedEnumerationImpl.h"
+#include "SVGAnimatedStringImpl.h"
+#include "SVGUnitConverter.h"
+#include "SVGShapeImpl.h"
+#include "SVGSVGElementImpl.h"
+#include "SVGMatrixImpl.h"
+#include "SVGRectImpl.h"
+
+using namespace KSVG;
+
+#include "SVGPatternElementImpl.lut.h"
+#include "ksvg_scriptinterpreter.h"
+#include "ksvg_bridge.h"
+#include "ksvg_ecma.h"
+
+QValueList<SVGPatternElementImpl *> SVGPatternElementImpl::m_patternElements;
+
+SVGPatternElementImpl::SVGPatternElementImpl(DOM::ElementImpl *impl) : SVGElementImpl(impl), SVGURIReferenceImpl(), SVGTestsImpl(), SVGLangSpaceImpl(), SVGExternalResourcesRequiredImpl(), SVGStylableImpl(this), SVGFitToViewBoxImpl(), SVGPaintServerImpl()
+{
+ KSVG_EMPTY_FLAGS
+
+ m_patternUnits = new SVGAnimatedEnumerationImpl();
+ m_patternUnits->ref();
+
+ m_patternContentUnits = new SVGAnimatedEnumerationImpl();
+ m_patternContentUnits->ref();
+
+ m_patternTransform = new SVGAnimatedTransformListImpl();
+ m_patternTransform->ref();
+
+ m_x = new SVGAnimatedLengthImpl(LENGTHMODE_WIDTH, this);
+ m_x->ref();
+
+ m_y = new SVGAnimatedLengthImpl(LENGTHMODE_HEIGHT, this);
+ m_y->ref();
+
+ m_width = new SVGAnimatedLengthImpl(LENGTHMODE_WIDTH, this);
+ m_width->ref();
+
+ m_height = new SVGAnimatedLengthImpl(LENGTHMODE_HEIGHT, this);
+ m_height->ref();
+
+ m_converter = new SVGUnitConverter();
+ m_converter->add(m_x);
+ m_converter->add(m_y);
+ m_converter->add(m_width);
+ m_converter->add(m_height);
+
+ m_patternElements.append(this);
+
+ m_canvas = 0;
+ m_location = this;
+
+ m_tileCache.setMaxTotalCost(1024 * 1024);
+}
+
+SVGPatternElementImpl::~SVGPatternElementImpl()
+{
+ if(m_patternUnits)
+ m_patternUnits->deref();
+ if(m_patternContentUnits)
+ m_patternContentUnits->deref();
+ if(m_patternTransform)
+ m_patternTransform->deref();
+ if(m_x)
+ m_x->deref();
+ if(m_y)
+ m_y->deref();
+ if(m_width)
+ m_width->deref();
+ if(m_height)
+ m_height->deref();
+ delete m_converter;
+ m_patternElements.remove(this);
+}
+
+SVGAnimatedEnumerationImpl *SVGPatternElementImpl::patternUnits() const
+{
+ return m_patternUnits;
+}
+
+SVGAnimatedEnumerationImpl *SVGPatternElementImpl::patternContentUnits() const
+{
+ return m_patternContentUnits;
+}
+
+SVGAnimatedTransformListImpl *SVGPatternElementImpl::patternTransform() const
+{
+ return m_patternTransform;
+}
+
+SVGAnimatedLengthImpl *SVGPatternElementImpl::x() const
+{
+ return m_x;
+}
+
+SVGAnimatedLengthImpl *SVGPatternElementImpl::y() const
+{
+ return m_y;
+}
+
+SVGAnimatedLengthImpl *SVGPatternElementImpl::width() const
+{
+ return m_width;
+}
+
+SVGAnimatedLengthImpl *SVGPatternElementImpl::height() const
+{
+ return m_height;
+}
+
+void SVGPatternElementImpl::createItem(KSVGCanvas *c)
+{
+ if(!c)
+ c = ownerDoc()->canvas();
+
+ if(!m_paintServer)
+ m_paintServer = c->createPaintServer(this);
+}
+
+void SVGPatternElementImpl::removeItem(KSVGCanvas *)
+{
+ delete m_paintServer;
+ m_paintServer = 0;
+}
+
+// Ecma stuff
+
+/*
+@namespace KSVG
+@begin SVGPatternElementImpl::s_hashTable 11
+ x SVGPatternElementImpl::X DontDelete|ReadOnly
+ y SVGPatternElementImpl::Y DontDelete|ReadOnly
+ width SVGPatternElementImpl::Width DontDelete|ReadOnly
+ height SVGPatternElementImpl::Height DontDelete|ReadOnly
+ patternUnits SVGPatternElementImpl::PatternUnits DontDelete|ReadOnly
+ patternContentUnits SVGPatternElementImpl::PatternContentUnits DontDelete|ReadOnly
+ patternTransform SVGPatternElementImpl::PatternTransform DontDelete|ReadOnly
+@end
+*/
+
+Value SVGPatternElementImpl::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 PatternUnits:
+ if(!attributeMode)
+ return m_patternUnits->cache(exec);
+ else
+ return Number(m_patternUnits->baseVal());
+ case PatternContentUnits:
+ if(!attributeMode)
+ return m_patternContentUnits->cache(exec);
+ else
+ return Number(m_patternContentUnits->baseVal());
+ case PatternTransform:
+ //if(!attributeMode)
+ return m_patternTransform->cache(exec);
+ //else
+ // return Number(m_patternTransform->baseVal()->value());
+ default:
+ kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
+ return Undefined();
+ }
+}
+
+void SVGPatternElementImpl::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:
+ converter()->modify(x(), value.toString(exec).qstring());
+ break;
+ case Y:
+ converter()->modify(y(), value.toString(exec).qstring());
+ break;
+ case Width:
+ converter()->modify(width(), value.toString(exec).qstring());
+ if(width()->baseVal()->value() < 0) // A negative value is an error
+ gotError(i18n("Negative value for attribute width of element <pattern> is illegal"));
+ break;
+ case Height:
+ converter()->modify(height(), value.toString(exec).qstring());
+ if(height()->baseVal()->value() < 0) // A negative value is an error
+ gotError(i18n("Negative value for attribute height of element <pattern> is illegal"));
+ break;
+ case PatternUnits:
+ if(value.toString(exec).qstring() == "userSpaceOnUse")
+ m_patternUnits->setBaseVal(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE);
+ else
+ m_patternUnits->setBaseVal(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
+ break;
+ case PatternContentUnits:
+ if(value.toString(exec).qstring() == "userSpaceOnUse")
+ m_patternContentUnits->setBaseVal(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE);
+ else
+ m_patternContentUnits->setBaseVal(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
+ break;
+ case PatternTransform:
+ m_patternTransform->baseVal()->clear();
+ SVGHelperImpl::parseTransformAttribute(m_patternTransform->baseVal(), value.toString(exec).qstring());
+ break;
+ default:
+ kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
+ }
+}
+
+void SVGPatternElementImpl::setAttributes()
+{
+ SVGElementImpl::setAttributes();
+
+ // Spec: if attribute not specified, use a value of 0
+ if(KSVG_TOKEN_NOT_PARSED(X))
+ KSVG_SET_ALT_ATTRIBUTE(X, "0")
+
+ // Spec: if attribute not specified, use a value of 0
+ if(KSVG_TOKEN_NOT_PARSED(Y))
+ KSVG_SET_ALT_ATTRIBUTE(Y, "0")
+
+ // Spec: if attribute not specified, use objectBoundingBox
+ if(KSVG_TOKEN_NOT_PARSED(PatternUnits))
+ KSVG_SET_ALT_ATTRIBUTE(PatternUnits, "objectBoundingBox")
+
+ // Spec: If attribute not specified, use userSpaceOnUse
+ if(KSVG_TOKEN_NOT_PARSED(PatternContentUnits))
+ KSVG_SET_ALT_ATTRIBUTE(PatternContentUnits, "userSpaceOnUse")
+
+ // Spec: default value
+ if(KSVG_TOKEN_NOT_PARSED(PreserveAspectRatio))
+ KSVG_SET_ALT_ATTRIBUTE(PreserveAspectRatio, "xMidYMid meet")
+}
+
+void SVGPatternElementImpl::flushCachedTiles()
+{
+ QValueList<SVGPatternElementImpl *>::iterator it;
+
+ for(it = m_patternElements.begin(); it != m_patternElements.end(); it++)
+ {
+ SVGPatternElementImpl *pattern = *it;
+
+ if(pattern->paintServer())
+ pattern->paintServer()->resetFinalized();
+ }
+}
+
+QImage SVGPatternElementImpl::createTile(SVGShapeImpl *referencingElement, int imageWidth, int imageHeight)
+{
+ converter()->finalize(referencingElement, ownerSVGElement(), patternUnits()->baseVal());
+
+ QImage image(imageWidth, imageHeight, 32);
+ image.setAlphaBuffer(true);
+
+ if(m_canvas == 0)
+ {
+ m_canvas = CanvasFactory::self()->loadCanvas(image.width(), image.height());
+ m_canvas->setBackgroundColor(qRgba(0, 0, 0, 0));
+ }
+
+ m_canvas->setup(image.bits(), image.width(), image.height());
+
+ SVGMatrixImpl *baseMatrix = SVGSVGElementImpl::createSVGMatrix();
+
+ // Set the scale to map the tile onto the integral sized image
+ double xScale = static_cast<double>(imageWidth) / width()->baseVal()->value();
+ double yScale = static_cast<double>(imageHeight) / height()->baseVal()->value();
+
+ baseMatrix->scaleNonUniform(xScale, yScale);
+
+ if(hasAttribute("viewBox"))
+ {
+ SVGMatrixImpl *viewboxMatrix = viewBoxToViewTransform(width()->baseVal()->value(), height()->baseVal()->value());
+
+ baseMatrix->multiply(viewboxMatrix);
+ viewboxMatrix->deref();
+ }
+ else
+ {
+ if(patternContentUnits()->baseVal() == SVGPatternElement::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
+ {
+ // Get local coordinate bounding box
+ SVGRectImpl *rect = referencingElement->getBBox();
+
+ baseMatrix->translate(rect->qrect().x(), rect->qrect().y());
+ baseMatrix->scaleNonUniform(rect->qrect().width(), rect->qrect().height());
+ rect->deref();
+ }
+ }
+
+ for(DOM::Node node = m_location->firstChild(); !node.isNull(); node = node.nextSibling())
+ {
+ SVGElementImpl *element = ownerDoc()->getElementFromHandle(node.handle());
+ SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(element);
+ SVGTestsImpl *tests = dynamic_cast<SVGTestsImpl *>(element);
+ SVGStylableImpl *style = dynamic_cast<SVGStylableImpl *>(element);
+
+ bool ok = tests ? tests->ok() : true;
+ if(element && shape && style && ok && style->getVisible() && style->getDisplay())
+ {
+ SVGLocatableImpl *locatable = dynamic_cast<SVGLocatableImpl *>(element);
+ if(locatable)
+ locatable->updateCachedScreenCTM(baseMatrix);
+
+ element->createItem(m_canvas);
+ if(shape->item())
+ {
+ shape->item()->setReferenced(true);
+ m_canvas->invalidate(shape->item(), true);
+ }
+ }
+ }
+
+ baseMatrix->deref();
+
+ m_canvas->update(float(1));
+
+ if(getOverflow())
+ {
+ QPtrList<CanvasItem> items = m_canvas->allItems();
+ QRect allItemsBBox;
+
+ QPtrListIterator<CanvasItem> it(items);
+ CanvasItem *item;
+
+ while((item = *it) != 0)
+ {
+ QRect bbox = item->bbox();
+ allItemsBBox |= bbox;
+ ++it;
+ }
+
+ if(allItemsBBox.left() < 0 || allItemsBBox.right() >= imageWidth || allItemsBBox.top() < 0 || allItemsBBox.bottom() >= imageHeight)
+ {
+ // Get the range in whole-tile units that covers the bounding box, where (0, 0) is the
+ // usual tile position.
+ int tileLeft = (allItemsBBox.left() - (imageWidth - 1)) / imageWidth;
+ int tileRight = allItemsBBox.right() / imageWidth;
+ int tileTop = (allItemsBBox.top() - (imageHeight - 1)) / imageHeight;
+ int tileBottom = allItemsBBox.bottom() / imageHeight;
+
+ for(int tileX = tileLeft; tileX <= tileRight; tileX++)
+ {
+ for(int tileY = tileTop; tileY <= tileBottom; tileY++)
+ {
+ if(tileX != 0 || tileY !=0)
+ {
+ QPoint panPoint(-(tileX * imageWidth), -(tileY * imageHeight));
+ m_canvas->update(panPoint, false);
+ }
+ }
+ }
+ }
+ }
+
+ for(DOM::Node node = m_location->firstChild(); !node.isNull(); node = node.nextSibling())
+ {
+ SVGElementImpl *element = ownerDoc()->getElementFromHandle(node.handle());
+
+ if(element)
+ element->removeItem(m_canvas);
+ }
+
+ return image;
+}
+
+void SVGPatternElementImpl::reference(const QString &href)
+{
+ // Copy attributes
+ SVGElementImpl *src = ownerSVGElement()->getElementById(href);
+
+ if(src)
+ {
+ SVGHelperImpl::copyAttributes(src, this);
+
+ // Spec: Change location to referenced element so we
+ // can take the children elements to render from there
+ if(m_location == this)
+ m_location = src;
+ }
+}
+
+void SVGPatternElementImpl::finalizePaintServer()
+{
+ // Clear out any cached tiles since we may be being refinalised after an image
+ // inside a pattern has finished loading.
+ m_tileCache.clear();
+
+ QString _href = SVGURIReferenceImpl::getTarget(href()->baseVal().string());
+ if(!_href.isEmpty())
+ reference(_href);
+}
+
+SVGPatternElementImpl::Tile SVGPatternElementImpl::createTile(SVGShapeImpl *referencingElement)
+{
+ converter()->finalize(referencingElement, ownerSVGElement(), patternUnits()->baseVal());
+
+ SVGTransformableImpl *transformable = dynamic_cast<SVGTransformableImpl *>(referencingElement);
+ SVGMatrixImpl *matrix = 0;
+ if(transformable)
+ matrix = transformable->getScreenCTM();
+ else
+ matrix = SVGSVGElementImpl::createSVGMatrix();
+
+ matrix->translate(x()->baseVal()->value(), y()->baseVal()->value());
+
+ SVGMatrixImpl *patTransform = patternTransform()->baseVal()->concatenate();
+ if(patTransform)
+ {
+ matrix->multiply(patTransform);
+ patTransform->deref();
+ }
+
+ double xScale, yScale;
+ matrix->removeScale(&xScale, &yScale);
+
+ double tileWidth = width()->baseVal()->value() * xScale;
+ double tileHeight = height()->baseVal()->value() * yScale;
+
+ int imageWidth = static_cast<int>(tileWidth + 0.5);
+ int imageHeight = static_cast<int>(tileHeight + 0.5);
+
+ Tile tile;
+
+ if(imageWidth > 0 && imageHeight > 0)
+ {
+ QSize size(imageWidth, imageHeight);
+ QImage image;
+
+ if(!m_tileCache.find(size, image))
+ {
+ image = createTile(referencingElement, imageWidth, imageHeight);
+ m_tileCache.insert(size, image, image.width() * image.height() * 4);
+ }
+
+ // Map integral tile dimensions onto its true size
+ double adjustXScale = tileWidth / imageWidth;
+ double adjustYScale = tileHeight / imageHeight;
+
+ matrix->scaleNonUniform(adjustXScale, adjustYScale);
+ QWMatrix screenToTile = matrix->qmatrix().invert();
+
+ tile = Tile(image, screenToTile);
+ }
+
+ matrix->deref();
+
+ return tile;
+}
+