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*
* Licensed to the Apache Software Foundation (ASF) under one
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* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
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*************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svgio.hxx"
#include <svgio/svgreader/svgimagenode.hxx>
#include <svgio/svgreader/svgdocument.hxx>
#include <sax/tools/converter.hxx>
#include <tools/stream.hxx>
#include <vcl/bitmapex.hxx>
#include <svtools/filter.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include <drawinglayer/primitive2d/bitmapprimitive2d.hxx>
#include <drawinglayer/primitive2d/groupprimitive2d.hxx>
#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
#include <drawinglayer/primitive2d/maskprimitive2d.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <rtl/uri.hxx>
#include <drawinglayer/geometry/viewinformation2d.hxx>
//////////////////////////////////////////////////////////////////////////////
namespace svgio
{
namespace svgreader
{
SvgImageNode::SvgImageNode(
SvgDocument& rDocument,
SvgNode* pParent)
: SvgNode(SVGTokenRect, rDocument, pParent),
maSvgStyleAttributes(*this),
maSvgAspectRatio(),
mpaTransform(0),
maX(0),
maY(0),
maWidth(0),
maHeight(0),
maXLink(),
maUrl(),
maMimeType(),
maData()
{
}
SvgImageNode::~SvgImageNode()
{
if(mpaTransform) delete mpaTransform;
}
const SvgStyleAttributes* SvgImageNode::getSvgStyleAttributes() const
{
static rtl::OUString aClassStr(rtl::OUString::createFromAscii("image"));
return checkForCssStyle(aClassStr, maSvgStyleAttributes);
}
void SvgImageNode::parseAttribute(const rtl::OUString& rTokenName, SVGToken aSVGToken, const rtl::OUString& aContent)
{
// call parent
SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
// read style attributes
maSvgStyleAttributes.parseStyleAttribute(rTokenName, aSVGToken, aContent);
// parse own
switch(aSVGToken)
{
case SVGTokenStyle:
{
maSvgStyleAttributes.readStyle(aContent);
break;
}
case SVGTokenPreserveAspectRatio:
{
setSvgAspectRatio(readSvgAspectRatio(aContent));
break;
}
case SVGTokenTransform:
{
const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
if(!aMatrix.isIdentity())
{
setTransform(&aMatrix);
}
break;
}
case SVGTokenX:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
setX(aNum);
}
break;
}
case SVGTokenY:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
setY(aNum);
}
break;
}
case SVGTokenWidth:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
if(aNum.isPositive())
{
setWidth(aNum);
}
}
break;
}
case SVGTokenHeight:
{
SvgNumber aNum;
if(readSingleNumber(aContent, aNum))
{
if(aNum.isPositive())
{
setHeight(aNum);
}
}
break;
}
case SVGTokenXlinkHref:
{
const sal_Int32 nLen(aContent.getLength());
if(nLen)
{
readImageLink(aContent, maXLink, maUrl, maMimeType, maData);
}
break;
}
default:
{
break;
}
}
}
void extractFromGraphic(
const Graphic& rGraphic,
drawinglayer::primitive2d::Primitive2DSequence& rEmbedded,
basegfx::B2DRange& rViewBox,
BitmapEx& rBitmapEx)
{
if(GRAPHIC_BITMAP == rGraphic.GetType())
{
if(rGraphic.getSvgData().get())
{
// embedded Svg
rEmbedded = rGraphic.getSvgData()->getPrimitive2DSequence();
// fill aViewBox
rViewBox = rGraphic.getSvgData()->getRange();
}
else
{
// get bitmap
rBitmapEx = rGraphic.GetBitmapEx();
}
}
else
{
// evtl. convert to bitmap
rBitmapEx = rGraphic.GetBitmapEx();
}
}
void SvgImageNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DSequence& rTarget, bool /*bReferenced*/) const
{
// get size range and create path
const SvgStyleAttributes* pStyle = getSvgStyleAttributes();
if(pStyle && getWidth().isSet() && getHeight().isSet())
{
const double fWidth(getWidth().solve(*this, xcoordinate));
const double fHeight(getHeight().solve(*this, ycoordinate));
if(fWidth > 0.0 && fHeight > 0.0)
{
BitmapEx aBitmapEx;
drawinglayer::primitive2d::Primitive2DSequence aNewTarget;
// prepare Target and ViewBox for evtl. AspectRatio mappings
const double fX(getX().isSet() ? getX().solve(*this, xcoordinate) : 0.0);
const double fY(getY().isSet() ? getY().solve(*this, ycoordinate) : 0.0);
const basegfx::B2DRange aTarget(fX, fY, fX + fWidth, fY + fHeight);
basegfx::B2DRange aViewBox(aTarget);
if(maMimeType.getLength() && maData.getLength())
{
// use embedded base64 encoded data
::com::sun::star::uno::Sequence< sal_Int8 > aPass;
::sax::Converter::decodeBase64(aPass, maData);
if(aPass.hasElements())
{
SvMemoryStream aStream(aPass.getArray(), aPass.getLength(), STREAM_READ);
Graphic aGraphic;
if(GRFILTER_OK == GraphicFilter::GetGraphicFilter()->ImportGraphic(
aGraphic,
String(),
aStream))
{
extractFromGraphic(aGraphic, aNewTarget, aViewBox, aBitmapEx);
}
}
}
else if(maUrl.getLength())
{
const rtl::OUString& rPath = getDocument().getAbsolutePath();
const rtl::OUString aAbsUrl(rtl::Uri::convertRelToAbs(rPath, maUrl));
if(aAbsUrl.getLength())
{
SvFileStream aStream(aAbsUrl, STREAM_STD_READ);
Graphic aGraphic;
if(GRFILTER_OK == GraphicFilter::GetGraphicFilter()->ImportGraphic(
aGraphic,
aAbsUrl,
aStream))
{
extractFromGraphic(aGraphic, aNewTarget, aViewBox, aBitmapEx);
}
}
}
else if(maXLink.getLength())
{
const SvgNode* mpXLink = getDocument().findSvgNodeById(maXLink);
if(mpXLink && Display_none != mpXLink->getDisplay())
{
mpXLink->decomposeSvgNode(aNewTarget, true);
if(aNewTarget.hasElements())
{
aViewBox = drawinglayer::primitive2d::getB2DRangeFromPrimitive2DSequence(
aNewTarget,
drawinglayer::geometry::ViewInformation2D());
}
}
}
if(!aBitmapEx.IsEmpty())
{
// create content from created bitmap
aNewTarget.realloc(1);
aNewTarget[0] = new drawinglayer::primitive2d::BitmapPrimitive2D(
aBitmapEx,
basegfx::B2DHomMatrix());
// fill aViewBox. No size set yet, use unit size
aViewBox = basegfx::B2DRange(0.0, 0.0, 1.0, 1.0);
}
if(aNewTarget.hasElements())
{
if(aTarget.equal(aViewBox))
{
// just add to rTarget
drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(rTarget, aNewTarget);
}
else
{
// create mapping
const SvgAspectRatio& rRatio = getSvgAspectRatio();
if(rRatio.isSet())
{
// let mapping be created from SvgAspectRatio
const basegfx::B2DHomMatrix aEmbeddingTransform(rRatio.createMapping(aTarget, aViewBox));
if(!aEmbeddingTransform.isIdentity())
{
const drawinglayer::primitive2d::Primitive2DReference xRef(
new drawinglayer::primitive2d::TransformPrimitive2D(
aEmbeddingTransform,
aNewTarget));
aNewTarget = drawinglayer::primitive2d::Primitive2DSequence(&xRef, 1);
}
if(!rRatio.isMeetOrSlice())
{
// need to embed in MaskPrimitive2D to ensure clipping
const drawinglayer::primitive2d::Primitive2DReference xMask(
new drawinglayer::primitive2d::MaskPrimitive2D(
basegfx::B2DPolyPolygon(
basegfx::tools::createPolygonFromRect(aTarget)),
aNewTarget));
aNewTarget = drawinglayer::primitive2d::Primitive2DSequence(&xMask, 1);
}
}
else
{
// choose default mapping
const basegfx::B2DHomMatrix aEmbeddingTransform(rRatio.createLinearMapping(aTarget, aViewBox));
if(!aEmbeddingTransform.isIdentity())
{
const drawinglayer::primitive2d::Primitive2DReference xRef(
new drawinglayer::primitive2d::TransformPrimitive2D(
aEmbeddingTransform,
aNewTarget));
aNewTarget = drawinglayer::primitive2d::Primitive2DSequence(&xRef, 1);
}
}
// embed and add to rTarget, take local extra-transform into account
pStyle->add_postProcess(rTarget, aNewTarget, getTransform());
}
}
}
}
}
} // end of namespace svgreader
} // end of namespace svgio
//////////////////////////////////////////////////////////////////////////////
// eof