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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
commit | ed5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch) | |
tree | 7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /vcl/source/graphic/GraphicID.cxx | |
parent | Initial commit. (diff) | |
download | libreoffice-upstream.tar.xz libreoffice-upstream.zip |
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | vcl/source/graphic/GraphicID.cxx | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/vcl/source/graphic/GraphicID.cxx b/vcl/source/graphic/GraphicID.cxx new file mode 100644 index 000000000..61cdee3c2 --- /dev/null +++ b/vcl/source/graphic/GraphicID.cxx @@ -0,0 +1,100 @@ +/* -*- 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 <graphic/GraphicID.hxx> + +#include <impgraph.hxx> +#include <rtl/strbuf.hxx> + +GraphicID::GraphicID(ImpGraphic const& rGraphic) +{ + rGraphic.ensureAvailable(); + + mnID1 = static_cast<sal_uLong>(rGraphic.getType()) << 28; + mnID2 = mnID3 = mnID4 = 0; + + if (rGraphic.getType() == GraphicType::Bitmap) + { + auto const& rVectorGraphicDataPtr = rGraphic.getVectorGraphicData(); + if (rVectorGraphicDataPtr) + { + const basegfx::B2DRange& rRange = rVectorGraphicDataPtr->getRange(); + + mnID1 |= rVectorGraphicDataPtr->getBinaryDataContainer().getSize(); + mnID2 = basegfx::fround(rRange.getWidth()); + mnID3 = basegfx::fround(rRange.getHeight()); + mnID4 = vcl_get_checksum(0, rVectorGraphicDataPtr->getBinaryDataContainer().getData(), + rVectorGraphicDataPtr->getBinaryDataContainer().getSize()); + } + else if (rGraphic.isAnimated()) + { + const Animation aAnimation(rGraphic.getAnimation()); + + mnID1 |= (aAnimation.Count() & 0x0fffffff); + mnID2 = aAnimation.GetDisplaySizePixel().Width(); + mnID3 = aAnimation.GetDisplaySizePixel().Height(); + mnID4 = rGraphic.getChecksum(); + } + else + { + const BitmapEx aBmpEx(rGraphic.getBitmapEx(GraphicConversionParameters())); + + mnID1 |= aBmpEx.IsAlpha() ? 1 : 0; + mnID2 = aBmpEx.GetSizePixel().Width(); + mnID3 = aBmpEx.GetSizePixel().Height(); + mnID4 = rGraphic.getChecksum(); + } + } + else if (rGraphic.getType() == GraphicType::GdiMetafile) + { + const GDIMetaFile& rMtf = rGraphic.getGDIMetaFile(); + + mnID1 |= (rMtf.GetActionSize() & 0x0fffffff); + mnID2 = rMtf.GetPrefSize().Width(); + mnID3 = rMtf.GetPrefSize().Height(); + mnID4 = rGraphic.getChecksum(); + } +} + +OString GraphicID::getIDString() const +{ + static const char aHexData[] + = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; + + sal_Int32 nShift, nIndex = 0; + sal_Int32 nLen = 24 + (2 * BITMAP_CHECKSUM_SIZE); + OStringBuffer aHexStr(nLen); + aHexStr.setLength(nLen); + + for (nShift = 28; nShift >= 0; nShift -= 4) + aHexStr[nIndex++] = aHexData[(mnID1 >> static_cast<sal_uInt32>(nShift)) & 0xf]; + + for (nShift = 28; nShift >= 0; nShift -= 4) + aHexStr[nIndex++] = aHexData[(mnID2 >> static_cast<sal_uInt32>(nShift)) & 0xf]; + + for (nShift = 28; nShift >= 0; nShift -= 4) + aHexStr[nIndex++] = aHexData[(mnID3 >> static_cast<sal_uInt32>(nShift)) & 0xf]; + + for (nShift = (8 * BITMAP_CHECKSUM_SIZE) - 4; nShift >= 0; nShift -= 4) + aHexStr[nIndex++] = aHexData[(mnID4 >> static_cast<sal_uInt32>(nShift)) & 0xf]; + + return aHexStr.makeStringAndClear(); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |