6520999570
Change-Id: I4b733bf37132073ece55fa392c06086410f6f914 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/92393 Tested-by: Jenkins Reviewed-by: Caolán McNamara <caolanm@redhat.com>
189 lines
5.7 KiB
C++
189 lines
5.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <sal/log.hxx>
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#include <tools/stream.hxx>
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#include <tools/vcompat.hxx>
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#include <vcl/graph.hxx>
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#include <vcl/gfxlink.hxx>
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#include <vcl/graphicfilter.hxx>
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#include <memory>
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#include <boost/functional/hash.hpp>
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GfxLink::GfxLink()
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: meType(GfxLinkType::NONE)
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, mnUserId(0)
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, maHash(0)
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, mnSwapInDataSize(0)
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, mbPrefMapModeValid(false)
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, mbPrefSizeValid(false)
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{
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}
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GfxLink::GfxLink(std::unique_ptr<sal_uInt8[]> pBuf, sal_uInt32 nSize, GfxLinkType nType)
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: meType(nType)
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, mnUserId(0)
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, mpSwapInData(std::shared_ptr<sal_uInt8>(pBuf.release(), pBuf.get_deleter())) // std::move(pBuf) does not compile on Jenkins MacOSX (24 May 2016)
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, maHash(0)
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, mnSwapInDataSize(nSize)
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, mbPrefMapModeValid(false)
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, mbPrefSizeValid(false)
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{
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SAL_WARN_IF(mpSwapInData == nullptr || mnSwapInDataSize <= 0, "vcl",
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"GfxLink::GfxLink(): empty/NULL buffer given");
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}
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size_t GfxLink::GetHash() const
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{
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if (!maHash)
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{
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std::size_t seed = 0;
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boost::hash_combine(seed, mnSwapInDataSize);
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boost::hash_combine(seed, meType);
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const sal_uInt8* pData = GetData();
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if (pData)
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seed += boost::hash_range(pData, pData + GetDataSize());
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maHash = seed;
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}
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return maHash;
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}
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bool GfxLink::operator==( const GfxLink& rGfxLink ) const
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{
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if (GetHash() != rGfxLink.GetHash())
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return false;
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if ( mnSwapInDataSize != rGfxLink.mnSwapInDataSize ||
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meType != rGfxLink.meType )
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return false;
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const sal_uInt8* pSource = GetData();
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const sal_uInt8* pDest = rGfxLink.GetData();
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if ( pSource == pDest )
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return true;
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sal_uInt32 nSourceSize = GetDataSize();
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sal_uInt32 nDestSize = rGfxLink.GetDataSize();
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if ( pSource && pDest && ( nSourceSize == nDestSize ) )
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return (memcmp( pSource, pDest, nSourceSize ) == 0);
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return false;
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}
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bool GfxLink::IsNative() const
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{
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return meType >= GfxLinkType::NativeFirst && meType <= GfxLinkType::NativeLast;
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}
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const sal_uInt8* GfxLink::GetData() const
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{
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return mpSwapInData.get();
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}
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void GfxLink::SetPrefSize( const Size& rPrefSize )
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{
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maPrefSize = rPrefSize;
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mbPrefSizeValid = true;
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}
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void GfxLink::SetPrefMapMode( const MapMode& rPrefMapMode )
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{
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maPrefMapMode = rPrefMapMode;
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mbPrefMapModeValid = true;
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}
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bool GfxLink::LoadNative( Graphic& rGraphic )
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{
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bool bRet = false;
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if( IsNative() && mnSwapInDataSize )
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{
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const sal_uInt8* pData = GetData();
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if (pData)
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{
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SvMemoryStream aMemoryStream(const_cast<sal_uInt8*>(pData), mnSwapInDataSize, StreamMode::READ | StreamMode::WRITE);
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OUString aShortName;
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switch (meType)
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{
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case GfxLinkType::NativeGif: aShortName = GIF_SHORTNAME; break;
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case GfxLinkType::NativeJpg: aShortName = JPG_SHORTNAME; break;
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case GfxLinkType::NativePng: aShortName = PNG_SHORTNAME; break;
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case GfxLinkType::NativeTif: aShortName = TIF_SHORTNAME; break;
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case GfxLinkType::NativeWmf: aShortName = WMF_SHORTNAME; break;
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case GfxLinkType::NativeMet: aShortName = MET_SHORTNAME; break;
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case GfxLinkType::NativePct: aShortName = PCT_SHORTNAME; break;
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case GfxLinkType::NativeSvg: aShortName = SVG_SHORTNAME; break;
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case GfxLinkType::NativeBmp: aShortName = BMP_SHORTNAME; break;
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case GfxLinkType::NativePdf: aShortName = PDF_SHORTNAME; break;
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default: break;
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}
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if (!aShortName.isEmpty())
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{
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GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
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sal_uInt16 nFormat = rFilter.GetImportFormatNumberForShortName(aShortName);
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ErrCode nResult = rFilter.ImportGraphic(rGraphic, OUString(), aMemoryStream, nFormat);
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if (nResult == ERRCODE_NONE)
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bRet = true;
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}
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}
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}
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return bRet;
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}
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bool GfxLink::ExportNative( SvStream& rOStream ) const
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{
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if( GetDataSize() )
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{
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auto pData = GetSwapInData();
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if (pData)
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rOStream.WriteBytes( pData.get(), mnSwapInDataSize );
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}
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return ( rOStream.GetError() == ERRCODE_NONE );
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}
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std::shared_ptr<sal_uInt8> GfxLink::GetSwapInData() const
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{
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return mpSwapInData;
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}
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bool GfxLink::IsEMF() const
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{
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const sal_uInt8* pGraphicAry = GetData();
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if ((GetType() == GfxLinkType::NativeWmf) && pGraphicAry && (GetDataSize() > 0x2c))
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{
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// check the magic number
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if ((pGraphicAry[0x28] == 0x20) && (pGraphicAry[0x29] == 0x45)
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&& (pGraphicAry[0x2a] == 0x4d) && (pGraphicAry[0x2b] == 0x46))
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{
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//emf detected
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return true;
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}
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}
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return false;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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