office-gobmx/vcl/source/gdi/vectorgraphicdata.cxx
Noel Grandin 54a97eb9dd clang-tidy modernize-pass-by-value in vcl
Change-Id: I9ddb786eb88213c53cf53067ced6899ca40ac6e8
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/137000
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
2022-07-13 09:22:40 +02:00

363 lines
12 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information 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 .
*/
#include <tools/diagnose_ex.h>
#include <tools/stream.hxx>
#include <sal/log.hxx>
#include <utility>
#include <vcl/vectorgraphicdata.hxx>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/graphic/PdfTools.hpp>
#include <com/sun/star/graphic/SvgTools.hpp>
#include <com/sun/star/graphic/EmfTools.hpp>
#include <com/sun/star/graphic/Primitive2DTools.hpp>
#include <com/sun/star/rendering/XIntegerReadOnlyBitmap.hpp>
#include <com/sun/star/util/XAccounting.hpp>
#include <com/sun/star/util/XBinaryDataContainer.hpp>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include <vcl/canvastools.hxx>
#include <comphelper/seqstream.hxx>
#include <comphelper/sequence.hxx>
#include <comphelper/propertysequence.hxx>
#include <comphelper/propertyvalue.hxx>
#include <vcl/svapp.hxx>
#include <vcl/outdev.hxx>
#include <vcl/wmfexternal.hxx>
#include <vcl/pdfread.hxx>
#include <unotools/streamwrap.hxx>
#include <graphic/UnoBinaryDataContainer.hxx>
using namespace ::com::sun::star;
BitmapEx convertPrimitive2DSequenceToBitmapEx(
const std::deque< css::uno::Reference< css::graphic::XPrimitive2D > >& rSequence,
const basegfx::B2DRange& rTargetRange,
const sal_uInt32 nMaximumQuadraticPixels,
const o3tl::Length eTargetUnit,
const std::optional<Size>& rTargetDPI)
{
BitmapEx aRetval;
if(!rSequence.empty())
{
// create replacement graphic from maSequence
// create XPrimitive2DRenderer
try
{
uno::Reference< uno::XComponentContext > xContext(::comphelper::getProcessComponentContext());
const uno::Reference< graphic::XPrimitive2DRenderer > xPrimitive2DRenderer = graphic::Primitive2DTools::create(xContext);
uno::Sequence< beans::PropertyValue > aViewParameters = {
comphelper::makePropertyValue("RangeUnit", static_cast<sal_Int32>(eTargetUnit)),
};
geometry::RealRectangle2D aRealRect;
aRealRect.X1 = rTargetRange.getMinX();
aRealRect.Y1 = rTargetRange.getMinY();
aRealRect.X2 = rTargetRange.getMaxX();
aRealRect.Y2 = rTargetRange.getMaxY();
// get system DPI
Size aDPI(Application::GetDefaultDevice()->LogicToPixel(Size(1, 1), MapMode(MapUnit::MapInch)));
if (rTargetDPI.has_value())
{
aDPI = *rTargetDPI;
}
const uno::Reference< rendering::XBitmap > xBitmap(
xPrimitive2DRenderer->rasterize(
comphelper::containerToSequence(rSequence),
aViewParameters,
aDPI.getWidth(),
aDPI.getHeight(),
aRealRect,
nMaximumQuadraticPixels));
if(xBitmap.is())
{
const uno::Reference< rendering::XIntegerReadOnlyBitmap> xIntBmp(xBitmap, uno::UNO_QUERY_THROW);
aRetval = vcl::unotools::bitmapExFromXBitmap(xIntBmp);
}
}
catch (const uno::Exception&)
{
TOOLS_WARN_EXCEPTION("vcl", "Got no graphic::XPrimitive2DRenderer!");
}
catch (const std::exception& e)
{
SAL_WARN("vcl", "Got no graphic::XPrimitive2DRenderer! : " << e.what());
}
}
return aRetval;
}
static size_t estimateSize(
std::deque<uno::Reference<graphic::XPrimitive2D>> const& rSequence)
{
size_t nRet(0);
for (auto& it : rSequence)
{
uno::Reference<util::XAccounting> const xAcc(it, uno::UNO_QUERY);
assert(xAcc.is()); // we expect only BasePrimitive2D from SVG parser
nRet += xAcc->estimateUsage();
}
return nRet;
}
bool VectorGraphicData::operator==(const VectorGraphicData& rCandidate) const
{
if (getType() == rCandidate.getType())
{
if (maDataContainer.getSize() == rCandidate.maDataContainer.getSize())
{
if (0 == memcmp(
maDataContainer.getData(),
rCandidate.maDataContainer.getData(),
maDataContainer.getSize()))
{
return true;
}
}
}
return false;
}
void VectorGraphicData::ensurePdfReplacement()
{
assert(getType() == VectorGraphicDataType::Pdf);
if (!maReplacement.IsEmpty())
return; // nothing to do
// use PDFium directly
std::vector<BitmapEx> aBitmaps;
sal_Int32 nUsePageIndex = 0;
if (mnPageIndex >= 0)
nUsePageIndex = mnPageIndex;
vcl::RenderPDFBitmaps(maDataContainer.getData(),
maDataContainer.getSize(), aBitmaps, nUsePageIndex, 1,
&maSizeHint);
if (!aBitmaps.empty())
maReplacement = aBitmaps[0];
}
void VectorGraphicData::ensureReplacement()
{
if (!maReplacement.IsEmpty())
return; // nothing to do
// shortcut for PDF - PDFium can generate the replacement bitmap for us
// directly
if (getType() == VectorGraphicDataType::Pdf)
{
ensurePdfReplacement();
return;
}
ensureSequenceAndRange();
if (!maSequence.empty())
{
maReplacement = convertPrimitive2DSequenceToBitmapEx(maSequence, getRange());
}
}
void VectorGraphicData::ensureSequenceAndRange()
{
if (mbSequenceCreated || maDataContainer.isEmpty())
return;
// import SVG to maSequence, also set maRange
maRange.reset();
// create Vector Graphic Data interpreter
uno::Reference<uno::XComponentContext> xContext(::comphelper::getProcessComponentContext());
switch (getType())
{
case VectorGraphicDataType::Svg:
{
css::uno::Sequence<sal_Int8> aDataSequence(maDataContainer.getSize());
std::copy(maDataContainer.cbegin(), maDataContainer.cend(), aDataSequence.getArray());
const uno::Reference<io::XInputStream> xInputStream(new comphelper::SequenceInputStream(aDataSequence));
const uno::Reference< graphic::XSvgParser > xSvgParser = graphic::SvgTools::create(xContext);
if (xInputStream.is())
maSequence = comphelper::sequenceToContainer<std::deque<css::uno::Reference< css::graphic::XPrimitive2D >>>(xSvgParser->getDecomposition(xInputStream, OUString()));
break;
}
case VectorGraphicDataType::Emf:
case VectorGraphicDataType::Wmf:
{
const uno::Reference< graphic::XEmfParser > xEmfParser = graphic::EmfTools::create(xContext);
css::uno::Sequence<sal_Int8> aDataSequence(maDataContainer.getSize());
std::copy(maDataContainer.cbegin(), maDataContainer.cend(), aDataSequence.getArray());
const uno::Reference<io::XInputStream> xInputStream(new comphelper::SequenceInputStream(aDataSequence));
if (xInputStream.is())
{
uno::Sequence< ::beans::PropertyValue > aPropertySequence;
// Pass the size hint of the graphic to the EMF parser.
geometry::RealPoint2D aSizeHint;
aSizeHint.X = maSizeHint.getX();
aSizeHint.Y = maSizeHint.getY();
xEmfParser->setSizeHint(aSizeHint);
if (!mbEnableEMFPlus)
{
aPropertySequence = { comphelper::makePropertyValue("EMFPlusEnable", uno::Any(false)) };
}
maSequence = comphelper::sequenceToContainer<std::deque<css::uno::Reference< css::graphic::XPrimitive2D >>>(xEmfParser->getDecomposition(xInputStream, OUString(), aPropertySequence));
}
break;
}
case VectorGraphicDataType::Pdf:
{
const uno::Reference<graphic::XPdfDecomposer> xPdfDecomposer = graphic::PdfTools::create(xContext);
uno::Sequence<beans::PropertyValue> aDecompositionParameters = comphelper::InitPropertySequence({
{"PageIndex", uno::Any(sal_Int32(mnPageIndex))},
});
rtl::Reference<UnoBinaryDataContainer> xDataContainer = new UnoBinaryDataContainer(getBinaryDataContainer());
auto xPrimitive2D = xPdfDecomposer->getDecomposition(xDataContainer, aDecompositionParameters);
maSequence = comphelper::sequenceToContainer<std::deque<uno::Reference<graphic::XPrimitive2D>>>(xPrimitive2D);
break;
}
}
if(!maSequence.empty())
{
const sal_Int32 nCount(maSequence.size());
geometry::RealRectangle2D aRealRect;
uno::Sequence< beans::PropertyValue > aViewParameters;
for(sal_Int32 a(0); a < nCount; a++)
{
// get reference
const css::uno::Reference< css::graphic::XPrimitive2D > xReference(maSequence[a]);
if(xReference.is())
{
aRealRect = xReference->getRange(aViewParameters);
maRange.expand(
basegfx::B2DRange(
aRealRect.X1,
aRealRect.Y1,
aRealRect.X2,
aRealRect.Y2));
}
}
}
mNestedBitmapSize = estimateSize(maSequence);
mbSequenceCreated = true;
}
std::pair<VectorGraphicData::State, size_t> VectorGraphicData::getSizeBytes() const
{
if (!maSequence.empty() && !maDataContainer.isEmpty())
{
return std::make_pair(State::PARSED, maDataContainer.getSize() + mNestedBitmapSize);
}
else
{
return std::make_pair(State::UNPARSED, maDataContainer.getSize());
}
}
VectorGraphicData::VectorGraphicData(
BinaryDataContainer aDataContainer,
VectorGraphicDataType eVectorDataType,
sal_Int32 nPageIndex)
: maDataContainer(std::move(aDataContainer)),
mbSequenceCreated(false),
mNestedBitmapSize(0),
meType(eVectorDataType),
mnPageIndex(nPageIndex)
{
}
VectorGraphicData::VectorGraphicData(
const OUString& rPath,
VectorGraphicDataType eVectorDataType)
: mbSequenceCreated(false),
mNestedBitmapSize(0),
meType(eVectorDataType),
mnPageIndex(-1)
{
SvFileStream rIStm(rPath, StreamMode::STD_READ);
if(rIStm.GetError())
return;
const sal_uInt32 nStmLen(rIStm.remainingSize());
if (nStmLen)
{
VectorGraphicDataArray aVectorGraphicDataArray(nStmLen);
auto pData = aVectorGraphicDataArray.getArray();
rIStm.ReadBytes(pData, nStmLen);
if (!rIStm.GetError())
{
maDataContainer = BinaryDataContainer(reinterpret_cast<const sal_uInt8*>(pData), nStmLen);
}
}
}
VectorGraphicData::~VectorGraphicData()
{
}
const basegfx::B2DRange& VectorGraphicData::getRange() const
{
const_cast< VectorGraphicData* >(this)->ensureSequenceAndRange();
return maRange;
}
const std::deque< css::uno::Reference< css::graphic::XPrimitive2D > >& VectorGraphicData::getPrimitive2DSequence() const
{
const_cast< VectorGraphicData* >(this)->ensureSequenceAndRange();
return maSequence;
}
const BitmapEx& VectorGraphicData::getReplacement() const
{
const_cast< VectorGraphicData* >(this)->ensureReplacement();
return maReplacement;
}
BitmapChecksum VectorGraphicData::GetChecksum() const
{
return vcl_get_checksum(0, maDataContainer.getData(), maDataContainer.getSize());
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */