/* -*- 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 #include #include #include #include #include #include #include #include #include class ImplBitmapPalette { public: ImplBitmapPalette(std::initializer_list aBitmapColor) : maBitmapColor(aBitmapColor) { } ImplBitmapPalette(const BitmapColor* first, const BitmapColor* last) : maBitmapColor(first, last) { } ImplBitmapPalette() {} ImplBitmapPalette(sal_uInt16 nCount) : maBitmapColor(nCount) { } std::vector& GetBitmapData() { return maBitmapColor; } const std::vector& GetBitmapData() const { return maBitmapColor; } bool operator==(const ImplBitmapPalette& rBitmapPalette) const { return maBitmapColor == rBitmapPalette.maBitmapColor; } private: std::vector maBitmapColor; }; namespace { BitmapPalette::ImplType& GetGlobalDefault() { static BitmapPalette::ImplType gDefault; return gDefault; } } BitmapPalette::BitmapPalette() : mpImpl(GetGlobalDefault()) { } BitmapPalette::BitmapPalette(const BitmapPalette& rOther) : mpImpl(rOther.mpImpl) { } BitmapPalette::BitmapPalette(BitmapPalette&& rOther) noexcept : mpImpl(std::move(rOther.mpImpl)) { } BitmapPalette::BitmapPalette(std::initializer_list aBitmapColor) : mpImpl(aBitmapColor) { } BitmapPalette::BitmapPalette(const BitmapColor* first, const BitmapColor* last) : mpImpl({ first, last }) { } BitmapPalette::BitmapPalette(sal_uInt16 nCount) : mpImpl(nCount) { } BitmapPalette::~BitmapPalette() {} BitmapPalette& BitmapPalette::operator=(const BitmapPalette& rOther) { mpImpl = rOther.mpImpl; return *this; } BitmapPalette& BitmapPalette::operator=(BitmapPalette&& rOther) noexcept { mpImpl = std::move(rOther.mpImpl); return *this; } const BitmapColor* BitmapPalette::ImplGetColorBuffer() const { return mpImpl->GetBitmapData().data(); } BitmapColor* BitmapPalette::ImplGetColorBuffer() { return mpImpl->GetBitmapData().data(); } BitmapChecksum BitmapPalette::GetChecksum() const { auto const& rBitmapData = mpImpl->GetBitmapData(); return rtl_crc32(0, rBitmapData.data(), rBitmapData.size() * sizeof(BitmapColor)); } bool BitmapPalette::operator==(const BitmapPalette& rOther) const { return mpImpl == rOther.mpImpl; } bool BitmapPalette::operator!() const { return mpImpl->GetBitmapData().empty(); } sal_uInt16 BitmapPalette::GetEntryCount() const { return mpImpl->GetBitmapData().size(); } void BitmapPalette::SetEntryCount(sal_uInt16 nCount) { mpImpl->GetBitmapData().resize(nCount); } const BitmapColor& BitmapPalette::operator[](sal_uInt16 nIndex) const { assert(nIndex < mpImpl->GetBitmapData().size() && "Palette index is out of range"); return mpImpl->GetBitmapData()[nIndex]; } BitmapColor& BitmapPalette::operator[](sal_uInt16 nIndex) { assert(nIndex < mpImpl->GetBitmapData().size() && "Palette index is out of range"); return mpImpl->GetBitmapData()[nIndex]; } /// Returns the BitmapColor (i.e. palette index) that is either an exact match /// of the required color, or failing that, the entry that is the closest i.e. least error /// as measured by Color::GetColorError. sal_uInt16 BitmapPalette::GetBestIndex(const BitmapColor& rCol) const { auto const& rBitmapColor = mpImpl->GetBitmapData(); sal_uInt16 nRetIndex = 0; if (!rBitmapColor.empty()) { for (size_t j = 0; j < rBitmapColor.size(); ++j) { if (rCol == rBitmapColor[j]) { return j; } } sal_uInt16 nLastErr = SAL_MAX_UINT16; for (size_t i = 0; i < rBitmapColor.size(); ++i) { const sal_uInt16 nActErr = rCol.GetColorError(rBitmapColor[i]); if (nActErr < nLastErr) { nLastErr = nActErr; nRetIndex = i; } } } return nRetIndex; } /// Returns the BitmapColor (i.e. palette index) that is an exact match /// of the required color. Returns SAL_MAX_UINT16 if nothing found. sal_uInt16 BitmapPalette::GetMatchingIndex(const BitmapColor& rCol) const { auto const& rBitmapColor = mpImpl->GetBitmapData(); for (size_t j = 0; j < rBitmapColor.size(); ++j) { if (rCol == rBitmapColor[j]) { return j; } } return SAL_MAX_UINT16; } bool BitmapPalette::IsGreyPaletteAny() const { auto const& rBitmapColor = mpImpl->GetBitmapData(); const int nEntryCount = GetEntryCount(); if (!nEntryCount) // NOTE: an empty palette means 1:1 mapping return true; // See above: only certain entry values will result in a valid call to GetGreyPalette if (nEntryCount == 2 || nEntryCount == 4 || nEntryCount == 16 || nEntryCount == 256) { const BitmapPalette& rGreyPalette = Bitmap::GetGreyPalette(nEntryCount); if (rGreyPalette == *this) return true; } bool bRet = false; // TODO: is it worth to compare the entries for the general case? if (nEntryCount == 2) { const BitmapColor& rCol0(rBitmapColor[0]); const BitmapColor& rCol1(rBitmapColor[1]); bRet = rCol0.GetRed() == rCol0.GetGreen() && rCol0.GetRed() == rCol0.GetBlue() && rCol1.GetRed() == rCol1.GetGreen() && rCol1.GetRed() == rCol1.GetBlue(); } return bRet; } bool BitmapPalette::IsGreyPalette8Bit() const { auto const& rBitmapColor = mpImpl->GetBitmapData(); const int nEntryCount = GetEntryCount(); if (!nEntryCount) // NOTE: an empty palette means 1:1 mapping return true; if (nEntryCount != 256) return false; for (sal_uInt16 i = 0; i < 256; ++i) { if (rBitmapColor[i] != BitmapColor(i, i, i)) return false; } return true; } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ ffice-7-4+backports LibreOffice 核心代码仓库文档基金会
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AgeCommit message (Expand)Author
tdf#69192: add StartingSlide to SID_PRESENTATION and cmdline show=Justin Luth
2024-05-01next is never passed a null pointer, use a referenceCaolán McNamara
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2023-05-10desktop : remove useless using namespaceArnaud VERSINI
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2022-09-01Filter out unwanted command URIsStephan Bergmann
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2022-03-11new loplugin:trivialdestructorNoel Grandin