Mercurial > hg > orthanc-stone
diff Framework/Scene2D/CairoCompositor.h @ 597:9e51fb773bbd
CairoCompositor
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 26 Apr 2019 17:28:18 +0200 |
parents | |
children | 6129b1e5ba42 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Framework/Scene2D/CairoCompositor.h Fri Apr 26 17:28:18 2019 +0200 @@ -0,0 +1,86 @@ +/** + * Stone of Orthanc + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2019 Osimis S.A., Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Affero 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 + * Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + + +#pragma once + +#include "../Fonts/GlyphBitmapAlphabet.h" +#include "../Viewport/CairoContext.h" +#include "Internals/CompositorHelper.h" +#include "Internals/ICairoContextProvider.h" + +namespace OrthancStone +{ + class CairoCompositor : + private Internals::CompositorHelper::IRendererFactory, + private Internals::ICairoContextProvider + { + private: + typedef std::map<size_t, GlyphBitmapAlphabet*> Fonts; + + Internals::CompositorHelper helper_; + CairoSurface canvas_; + Fonts fonts_; + + // Only valid during a call to "Refresh()" + std::auto_ptr<CairoContext> context_; + + virtual cairo_t* GetCairoContext(); + + virtual unsigned int GetCairoWidth() + { + return canvas_.GetWidth(); + } + + virtual unsigned int GetCairoHeight() + { + return canvas_.GetHeight(); + } + + virtual Internals::CompositorHelper::ILayerRenderer* Create(const ISceneLayer& layer); + + public: + CairoCompositor(Scene2D& scene, + unsigned int canvasWidth, + unsigned int canvasHeight); + + ~CairoCompositor(); + + const CairoSurface& GetCanvas() const + { + return canvas_; + } + + void SetFont(size_t index, + GlyphBitmapAlphabet* dict); // Takes ownership + +#if ORTHANC_ENABLE_LOCALE == 1 + void SetFont(size_t index, + Orthanc::EmbeddedResources::FileResourceId resource, + unsigned int fontSize, + Orthanc::Encoding codepage); +#endif + + void Refresh(); + + Orthanc::ImageAccessor* RenderText(size_t fontIndex, + const std::string& utf8) const; + }; +}