/* -*- 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 <sal/log.hxx>
#include <tools/stream.hxx>
#include <tools/vcompat.hxx>
#include <utility>
#include <vcl/graph.hxx>
#include <vcl/gfxlink.hxx>
#include <vcl/graphicfilter.hxx>
#include <memory>
#include <o3tl/hash_combine.hxx>
GfxLink::GfxLink()
: meType(GfxLinkType::NONE)
, mnUserId(0 )
, maHash(0 )
, mbPrefMapModeValid(false )
, mbPrefSizeValid(false )
{
}
GfxLink::GfxLink(BinaryDataContainer aDataConainer, GfxLinkType nType)
: meType(nType)
, mnUserId(0 )
, maDataContainer(std::move(aDataConainer))
, maHash(0 )
, mbPrefMapModeValid(false )
, mbPrefSizeValid(false )
{
}
size_t GfxLink::GetHash() const
{
if (!maHash)
{
std::size_t seed = maDataContainer.calculateHash();
o3tl::hash_combine(seed, meType);
maHash = seed;
}
return maHash;
}
bool GfxLink::operator ==( const GfxLink& rGfxLink ) const
{
if (GetDataSize() != rGfxLink.GetDataSize()
|| meType != rGfxLink.meType
|| GetHash() != rGfxLink.GetHash())
return false ;
const sal_uInt8* pSource = GetData();
const sal_uInt8* pDestination = rGfxLink.GetData();
if (pSource == pDestination)
return true ;
sal_uInt32 nSourceSize = GetDataSize();
sal_uInt32 nDestSize = rGfxLink.GetDataSize();
if (pSource && pDestination && (nSourceSize == nDestSize))
return memcmp(pSource, pDestination, nSourceSize) == 0 ;
return false ;
}
bool GfxLink::IsNative() const
{
return meType >= GfxLinkType::NativeFirst && meType <= GfxLinkType::NativeLast;
}
const sal_uInt8* GfxLink::GetData() const
{
return maDataContainer.getData();
}
void GfxLink::SetPrefSize( const Size& rPrefSize )
{
maPrefSize = rPrefSize;
mbPrefSizeValid = true ;
}
void GfxLink::SetPrefMapMode( const MapMode& rPrefMapMode )
{
maPrefMapMode = rPrefMapMode;
mbPrefMapModeValid = true ;
}
bool GfxLink::LoadNative(Graphic& rGraphic, sal_Int32 nPageNum) const
{
bool bRet = false ;
if (IsNative() && !maDataContainer.isEmpty())
{
const sal_uInt8* pData = GetData();
if (pData)
{
SvMemoryStream aMemoryStream(const_cast <sal_uInt8*>(pData), GetDataSize(), StreamMode::READ | StreamMode::WRITE);
OUString aShortName;
switch (meType)
{
case GfxLinkType::NativeGif: aShortName = GIF_SHORTNAME; break ;
case GfxLinkType::NativeJpg: aShortName = JPG_SHORTNAME; break ;
case GfxLinkType::NativePng: aShortName = PNG_SHORTNAME; break ;
case GfxLinkType::NativeTif: aShortName = TIF_SHORTNAME; break ;
case GfxLinkType::NativeWmf: aShortName = WMF_SHORTNAME; break ;
case GfxLinkType::NativeMet: aShortName = MET_SHORTNAME; break ;
case GfxLinkType::NativePct: aShortName = PCT_SHORTNAME; break ;
case GfxLinkType::NativeSvg: aShortName = SVG_SHORTNAME; break ;
case GfxLinkType::NativeBmp: aShortName = BMP_SHORTNAME; break ;
case GfxLinkType::NativePdf: aShortName = PDF_SHORTNAME; break ;
case GfxLinkType::NativeWebp: aShortName = WEBP_SHORTNAME; break ;
default : break ;
}
if (!aShortName.isEmpty())
{
GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
sal_uInt16 nFormat = rFilter.GetImportFormatNumberForShortName(aShortName);
ErrCode nResult
= rFilter.ImportGraphic(rGraphic, u"" , aMemoryStream, nFormat, nullptr,
GraphicFilterImportFlags::NONE, nPageNum);
if (nResult == ERRCODE_NONE)
bRet = true ;
}
}
}
return bRet;
}
bool GfxLink::ExportNative( SvStream& rOStream ) const
{
if ( GetDataSize() )
{
auto pData = GetData();
if (pData)
rOStream.WriteBytes(pData, GetDataSize());
}
return ( rOStream.GetError() == ERRCODE_NONE );
}
bool GfxLink::IsEMF() const
{
const sal_uInt8* pGraphicAry = GetData();
if ((GetType() == GfxLinkType::NativeWmf) && pGraphicAry && (GetDataSize() > 0 x2c))
{
// check the magic number
if ((pGraphicAry[0 x28] == 0 x20) && (pGraphicAry[0 x29] == 0 x45)
&& (pGraphicAry[0 x2a] == 0 x4d) && (pGraphicAry[0 x2b] == 0 x46))
{
//emf detected
return true ;
}
}
return false ;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
Messung V0.5 in Prozent C=91 H=100 G=95
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-06-10)
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