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view OrthancStone/Sources/Fonts/GlyphBitmapAlphabet.cpp @ 2006:862c572021de
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 02 Nov 2022 17:10:04 +0100 |
parents | 7053b8a0aaec |
children | 07964689cb0b |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2022 Osimis S.A., Belgium * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/>. **/ #include "GlyphBitmapAlphabet.h" #include "TextBoundingBox.h" #include "../Toolbox/DynamicBitmap.h" #include <Images/Image.h> #include <Images/ImageProcessing.h> namespace OrthancStone { class GlyphBitmapAlphabet::RenderTextVisitor : public GlyphAlphabet::ITextVisitor { private: Orthanc::ImageAccessor& target_; const GlyphBitmapAlphabet& that_; int offsetX_; int offsetY_; public: RenderTextVisitor(Orthanc::ImageAccessor& target, const GlyphBitmapAlphabet& that, int offsetX, int offsetY) : target_(target), that_(that), offsetX_(offsetX), offsetY_(offsetY) { } virtual void Visit(uint32_t unicode, int x, int y, unsigned int width, unsigned int height, const Orthanc::IDynamicObject* payload) ORTHANC_OVERRIDE { int left = x + offsetX_; int top = y + offsetY_; assert(payload != NULL); const DynamicBitmap& glyph = *dynamic_cast<const DynamicBitmap*>(payload); assert(left >= 0 && top >= 0 && static_cast<unsigned int>(left) + width <= target_.GetWidth() && static_cast<unsigned int>(top) + height <= target_.GetHeight() && width == glyph.GetBitmap().GetWidth() && height == glyph.GetBitmap().GetHeight()); { Orthanc::ImageAccessor region; target_.GetRegion(region, left, top, width, height); Orthanc::ImageProcessing::Copy(region, glyph.GetBitmap()); } } }; #if ORTHANC_ENABLE_LOCALE == 1 void GlyphBitmapAlphabet::LoadCodepage(FontRenderer& renderer, Orthanc::Encoding codepage) { for (unsigned int i = 0; i < 256; i++) { uint32_t unicode; if (GlyphAlphabet::GetUnicodeFromCodepage(unicode, i, codepage)) { AddUnicodeCharacter(renderer, unicode); } } } #endif Orthanc::ImageAccessor* GlyphBitmapAlphabet::RenderText(const std::string& utf8) const { TextBoundingBox box(alphabet_, utf8); std::unique_ptr<Orthanc::ImageAccessor> bitmap( new Orthanc::Image(Orthanc::PixelFormat_Grayscale8, box.GetWidth(), box.GetHeight(), true /* force minimal pitch */)); Orthanc::ImageProcessing::Set(*bitmap, 0); RenderTextVisitor visitor(*bitmap, *this, -box.GetLeft(), -box.GetTop()); alphabet_.Apply(visitor, utf8); return bitmap.release(); } }