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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 .
*/
#ifndef INCLUDED_VCL_INC_GRAPHICFORMATDETECTOR_HXX
#define INCLUDED_VCL_INC_GRAPHICFORMATDETECTOR_HXX
#include <tools/stream.hxx>
#include <vector>
#include <vcl/graphic/GraphicMetadata.hxx>
namespace vcl
{
static inline OUString getImportFormatShortName(GraphicFileFormat nFormat)
{
const char* pKeyName = nullptr;
switch (nFormat)
{
case GraphicFileFormat::BMP:
pKeyName = "BMP";
break;
case GraphicFileFormat::GIF:
pKeyName = "GIF";
break;
case GraphicFileFormat::JPG:
pKeyName = "JPG";
break;
case GraphicFileFormat::PCD:
pKeyName = "PCD";
break;
case GraphicFileFormat::PCX:
pKeyName = "PCX";
break;
case GraphicFileFormat::PNG:
pKeyName = "PNG";
break;
case GraphicFileFormat::APNG:
pKeyName = "APNG";
break;
case GraphicFileFormat::XBM:
pKeyName = "XBM";
break;
case GraphicFileFormat::XPM:
pKeyName = "XPM";
break;
case GraphicFileFormat::PBM:
pKeyName = "PBM";
break;
case GraphicFileFormat::PGM:
pKeyName = "PGM";
break;
case GraphicFileFormat::PPM:
pKeyName = "PPM";
break;
case GraphicFileFormat::RAS:
pKeyName = "RAS";
break;
case GraphicFileFormat::TGA:
pKeyName = "TGA";
break;
case GraphicFileFormat::PSD:
pKeyName = "PSD";
break;
case GraphicFileFormat::EPS:
pKeyName = "EPS";
break;
case GraphicFileFormat::TIF:
pKeyName = "TIF";
break;
case GraphicFileFormat::DXF:
pKeyName = "DXF";
break;
case GraphicFileFormat::MET:
pKeyName = "MET";
break;
case GraphicFileFormat::PCT:
pKeyName = "PCT";
break;
case GraphicFileFormat::SVM:
pKeyName = "SVM";
break;
case GraphicFileFormat::WMF:
pKeyName = "WMF";
break;
case GraphicFileFormat::EMF:
pKeyName = "EMF";
break;
case GraphicFileFormat::SVG:
pKeyName = "SVG";
break;
case GraphicFileFormat::WMZ:
pKeyName = "WMZ";
break;
case GraphicFileFormat::EMZ:
pKeyName = "EMZ";
break;
case GraphicFileFormat::SVGZ:
pKeyName = "SVGZ";
break;
case GraphicFileFormat::WEBP:
pKeyName = "WEBP";
break;
case GraphicFileFormat::MOV:
pKeyName = "MOV";
break;
case GraphicFileFormat::PDF:
pKeyName = "PDF";
break;
default:
assert(false);
}
return OUString::createFromAscii(pKeyName);
}
/***
* This function is has two modes:
* - determine the file format when bTest = false
* returns true, success
* out rFormatExtension - on success: file format string
* - verify file format when bTest = true
* returns false, if file type can't be verified
* true, if the format is verified or the format is not known
*/
VCL_DLLPUBLIC bool peekGraphicFormat(SvStream& rStream, OUString& rFormatExtension, bool bTest);
class VCL_DLLPUBLIC GraphicFormatDetector
{
public:
SvStream& mrStream;
OUString maExtension;
std::vector<sal_uInt8> maFirstBytes;
sal_uInt32 mnFirstLong;
sal_uInt32 mnSecondLong;
sal_uInt64 mnStreamPosition;
sal_uInt64 mnStreamLength;
GraphicFormatDetector(SvStream& rStream, OUString aFormatExtension, bool bExtendedInfo = false);
bool detect();
bool checkMET();
bool checkBMP();
bool checkWMF();
bool checkEMF();
bool checkPCX();
bool checkTIF();
bool checkGIF();
bool checkPNG();
bool checkAPNG();
bool checkJPG();
bool checkSVM();
bool checkPCD();
bool checkPSD();
bool checkEPS();
bool checkDXF();
bool checkPCT();
bool checkPBM();
bool checkPGM();
bool checkPPM();
bool checkRAS();
bool checkXPM();
bool checkXBM();
bool checkSVG();
bool checkTGA();
bool checkMOV();
bool checkPDF();
bool checkWEBP();
const GraphicMetadata& getMetadata();
private:
/**
* @brief Checks whether mrStream needs to be uncompressed and returns a pointer to the
* to aUncompressedBuffer or a pointer to maFirstBytes if it doesn't need to be uncompressed
*
* @param aUncompressedBuffer the buffer to hold the uncompressed data
* @param nSize the amount of bytes to uncompress
* @param nRetSize the amount of bytes actually uncompressed
* @return sal_uInt8* a pointer to maFirstBytes or aUncompressed buffer
*/
sal_uInt8* checkAndUncompressBuffer(sal_uInt8* aUncompressedBuffer, sal_uInt32 nSize,
sal_uInt64& nDecompressedSize);
bool mbExtendedInfo;
bool mbWasCompressed;
GraphicMetadata maMetadata;
};
}
#endif // INCLUDED_VCL_INC_GRAPHICFORMATDETECTOR_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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