103 lines
3.9 KiB
C++
103 lines
3.9 KiB
C++
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/* -*- 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 <graphic/GraphicID.hxx>
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#include <impgraph.hxx>
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GraphicID::GraphicID(ImpGraphic const& rGraphic)
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{
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rGraphic.ensureAvailable();
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mnID1 = static_cast<sal_uLong>(rGraphic.ImplGetType()) << 28;
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mnID2 = mnID3 = mnID4 = 0;
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if (rGraphic.ImplGetType() == GraphicType::Bitmap)
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{
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if (rGraphic.getVectorGraphicData().get())
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{
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const VectorGraphicDataPtr& rVectorGraphicDataPtr = rGraphic.getVectorGraphicData();
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const basegfx::B2DRange& rRange = rVectorGraphicDataPtr->getRange();
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mnID1 |= rVectorGraphicDataPtr->getVectorGraphicDataArrayLength();
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mnID2 = basegfx::fround(rRange.getWidth());
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mnID3 = basegfx::fround(rRange.getHeight());
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mnID4 = vcl_get_checksum(
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0, rVectorGraphicDataPtr->getVectorGraphicDataArray().getConstArray(),
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rVectorGraphicDataPtr->getVectorGraphicDataArrayLength());
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}
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else if (rGraphic.ImplIsAnimated())
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{
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const Animation aAnimation(rGraphic.ImplGetAnimation());
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mnID1 |= (aAnimation.Count() & 0x0fffffff);
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mnID2 = aAnimation.GetDisplaySizePixel().Width();
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mnID3 = aAnimation.GetDisplaySizePixel().Height();
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mnID4 = rGraphic.ImplGetChecksum();
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}
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else
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{
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const BitmapEx aBmpEx(rGraphic.ImplGetBitmapEx(GraphicConversionParameters()));
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mnID1 |= (((static_cast<sal_uLong>(aBmpEx.GetTransparentType()) << 8)
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& 0x0fffffff);
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mnID2 = aBmpEx.GetSizePixel().Width();
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mnID3 = aBmpEx.GetSizePixel().Height();
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mnID4 = rGraphic.ImplGetChecksum();
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}
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}
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else if (rGraphic.ImplGetType() == GraphicType::GdiMetafile)
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{
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const GDIMetaFile& rMtf = rGraphic.ImplGetGDIMetaFile();
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mnID1 |= (rMtf.GetActionSize() & 0x0fffffff);
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mnID2 = rMtf.GetPrefSize().Width();
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mnID3 = rMtf.GetPrefSize().Height();
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mnID4 = rGraphic.ImplGetChecksum();
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}
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}
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OString GraphicID::getIDString() const
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{
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static const char aHexData[]
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= { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
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sal_Int32 nShift, nIndex = 0;
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sal_Int32 nLen = 24 + (2 * BITMAP_CHECKSUM_SIZE);
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OStringBuffer aHexStr(nLen);
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aHexStr.setLength(nLen);
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for (nShift = 28; nShift >= 0; nShift -= 4)
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aHexStr[nIndex++] = aHexData[(mnID1 >> static_cast<sal_uInt32>(nShift)) & 0xf];
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for (nShift = 28; nShift >= 0; nShift -= 4)
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aHexStr[nIndex++] = aHexData[(mnID2 >> static_cast<sal_uInt32>(nShift)) & 0xf];
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for (nShift = 28; nShift >= 0; nShift -= 4)
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aHexStr[nIndex++] = aHexData[(mnID3 >> static_cast<sal_uInt32>(nShift)) & 0xf];
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for (nShift = (8 * BITMAP_CHECKSUM_SIZE) - 4; nShift >= 0; nShift -= 4)
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aHexStr[nIndex++] = aHexData[(mnID4 >> static_cast<sal_uInt32>(nShift)) & 0xf];
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return aHexStr.makeStringAndClear();
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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