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/* -*- 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 .
*/
#ifdef _WIN32
#include <prewin.h>
#include <postwin.h>
#endif
#include <com/sun/star/uno/Exception.hpp>
#include <com/sun/star/graphic/GraphicProvider.hpp>
#include <com/sun/star/graphic/XGraphicProvider.hpp>
#include <com/sun/star/graphic/XGraphic.hpp>
#include <vcl/gdimtf.hxx>
#include <vcl/graph.hxx>
#include <vcl/cvtgrf.hxx>
#include <vcl/bitmapex.hxx>
#include <vcl/graphicfilter.hxx>
#include <tools/stream.hxx>
#include <unotools/ucbstreamhelper.hxx>
#include <comphelper/processfactory.hxx>
#include <o3tl/char16_t2wchar_t.hxx>
#include "graphhelp.hxx"
#include <bitmaps.hlst>
#include <memory>
#if defined _WIN32
#include <unotools/tempfile.hxx>
#include <vcl/outdev.hxx>
#endif
using namespace css;
std::unique_ptr<SvMemoryStream> GraphicHelper::getFormatStrFromGDI_Impl( const GDIMetaFile* pGDIMeta, ConvertDataFormat nFormat )
{
std::unique_ptr<SvMemoryStream> pResult;
if ( pGDIMeta )
{
std::unique_ptr<SvMemoryStream> pStream(new SvMemoryStream( 65535, 65535 ));
Graphic aGraph( *pGDIMeta );
if ( GraphicConverter::Export( *pStream, aGraph, nFormat ) == ERRCODE_NONE )
pResult = std::move(pStream);
}
return pResult;
}
// static
void* GraphicHelper::getEnhMetaFileFromGDI_Impl( const GDIMetaFile* pGDIMeta )
{
void* pResult = nullptr;
#ifdef _WIN32
if ( pGDIMeta )
{
OUString const aStr(".emf");
::utl::TempFile aTempFile( OUString(), true, &aStr );
OUString aMetaFile = aTempFile.GetFileName();
OUString aMetaURL = aTempFile.GetURL();
std::unique_ptr<SvStream> pStream = ::utl::UcbStreamHelper::CreateStream( aMetaURL, StreamMode::STD_READWRITE );
if ( pStream )
{
Graphic aGraph( *pGDIMeta );
ErrCode nFailed = GraphicConverter::Export( *pStream, aGraph, ConvertDataFormat::EMF );
pStream->Flush();
pStream.reset();
if ( !nFailed )
pResult = GetEnhMetaFileW( o3tl::toW(aMetaFile.getStr()) );
}
}
#else
(void)pGDIMeta; // unused
#endif
return pResult;
}
// static
void* GraphicHelper::getWinMetaFileFromGDI_Impl( const GDIMetaFile* pGDIMeta, const Size& aMetaSize )
{
void* pResult = nullptr;
#ifdef _WIN32
if ( pGDIMeta )
{
SvMemoryStream pStream( 65535, 65535 );
Graphic aGraph( *pGDIMeta );
ErrCode nFailed = GraphicConverter::Export( pStream, aGraph, ConvertDataFormat::WMF );
pStream.Flush();
if ( !nFailed )
{
sal_Int32 nLength = pStream.TellEnd();
if ( nLength > 22 )
{
HMETAFILE hMeta = SetMetaFileBitsEx( nLength - 22,
static_cast< const unsigned char*>( pStream.GetData() ) + 22 );
if ( hMeta )
{
HGLOBAL hMemory = GlobalAlloc( GMEM_DDESHARE | GMEM_MOVEABLE, sizeof( METAFILEPICT ) );
if ( hMemory )
{
METAFILEPICT* pMF = static_cast<METAFILEPICT*>(GlobalLock( hMemory ));
pMF->hMF = hMeta;
pMF->mm = MM_ANISOTROPIC;
MapMode aWinMode( MapUnit::Map100thMM );
if ( aWinMode == pGDIMeta->GetPrefMapMode() )
{
pMF->xExt = aMetaSize.Width();
pMF->yExt = aMetaSize.Height();
}
else
{
Size aWinSize = OutputDevice::LogicToLogic( Size( aMetaSize.Width(), aMetaSize.Height() ),
pGDIMeta->GetPrefMapMode(),
aWinMode );
pMF->xExt = aWinSize.Width();
pMF->yExt = aWinSize.Height();
}
GlobalUnlock( hMemory );
pResult = static_cast<void*>(hMemory);
}
else
DeleteMetaFile( hMeta );
}
}
}
}
#else
(void)pGDIMeta; // unused
(void)aMetaSize; // unused
#endif
return pResult;
}
// static
bool GraphicHelper::getThumbnailFormatFromGDI_Impl(GDIMetaFile const * pMetaFile, const uno::Reference<io::XStream>& xStream)
{
bool bResult = false;
if (!pMetaFile || !xStream.is())
return false;
std::unique_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream(xStream));
if (pStream->GetError())
return false;
BitmapEx aResultBitmap;
bResult = pMetaFile->CreateThumbnail(aResultBitmap, BmpConversion::N8BitColors, BmpScaleFlag::Default);
if (!bResult || aResultBitmap.IsEmpty())
return false;
GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
if (rFilter.compressAsPNG(aResultBitmap, *pStream) != ERRCODE_NONE)
return false;
pStream->Flush();
return !pStream->GetError();
}
// static
bool GraphicHelper::getThumbnailReplacement_Impl(const OUString& rResID, const uno::Reference< io::XStream >& xStream )
{
bool bResult = false;
if (!rResID.isEmpty() && xStream.is())
{
uno::Reference< uno::XComponentContext > xContext = ::comphelper::getProcessComponentContext();
try
{
uno::Reference< graphic::XGraphicProvider > xGraphProvider(graphic::GraphicProvider::create(xContext));
const OUString aURL{"private:graphicrepository/" + rResID};
uno::Sequence< beans::PropertyValue > aMediaProps( 1 );
aMediaProps[0].Name = "URL";
aMediaProps[0].Value <<= aURL;
uno::Reference< graphic::XGraphic > xGraphic = xGraphProvider->queryGraphic( aMediaProps );
if ( xGraphic.is() )
{
uno::Sequence< beans::PropertyValue > aStoreProps( 2 );
aStoreProps[0].Name = "OutputStream";
aStoreProps[0].Value <<= xStream;
aStoreProps[1].Name = "MimeType";
aStoreProps[1].Value <<= OUString("image/png");
xGraphProvider->storeGraphic( xGraphic, aStoreProps );
bResult = true;
}
}
catch(const uno::Exception&)
{
}
}
return bResult;
}
// static
OUString GraphicHelper::getThumbnailReplacementIDByFactoryName_Impl( const OUString& aFactoryShortName )
{
OUString sResult;
if ( aFactoryShortName == "scalc" )
{
sResult = BMP_128X128_CALC_DOC;
}
else if ( aFactoryShortName == "sdraw" )
{
sResult = BMP_128X128_DRAW_DOC;
}
else if ( aFactoryShortName == "simpress" )
{
sResult = BMP_128X128_IMPRESS_DOC;
}
else if ( aFactoryShortName == "smath" )
{
sResult = BMP_128X128_MATH_DOC;
}
else if ( aFactoryShortName == "swriter" || aFactoryShortName.startsWith("swriter/") )
{
sResult = BMP_128X128_WRITER_DOC;
}
return sResult;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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