annotate Framework/Scene2D/CairoCompositor.h @ 911:64e5f3ff6360 am-dev

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author Alain Mazy <alain@mazy.be>
date Thu, 18 Jul 2019 10:50:59 +0200
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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21
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22 #pragma once
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23
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24 #include "ICompositor.h"
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25 #include "../Fonts/GlyphBitmapAlphabet.h"
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26 #include "../Wrappers/CairoContext.h"
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27 #include "Internals/CompositorHelper.h"
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28 #include "Internals/ICairoContextProvider.h"
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30 namespace OrthancStone
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31 {
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32 class CairoCompositor :
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33 public ICompositor,
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34 private Internals::CompositorHelper::IRendererFactory,
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35 private Internals::ICairoContextProvider
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36 {
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37 private:
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38 typedef std::map<size_t, GlyphBitmapAlphabet*> Fonts;
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40 Internals::CompositorHelper helper_;
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41 CairoSurface canvas_;
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42 Fonts fonts_;
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43
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44 // Only valid during a call to "Refresh()"
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45 std::auto_ptr<CairoContext> context_;
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46
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47 virtual cairo_t* GetCairoContext();
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49 virtual Internals::CompositorHelper::ILayerRenderer* Create(const ISceneLayer& layer);
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51 public:
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52 CairoCompositor(const Scene2D& scene,
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53 unsigned int canvasWidth,
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54 unsigned int canvasHeight);
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55
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56 virtual ~CairoCompositor();
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58 const CairoSurface& GetCanvas() const
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59 {
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60 return canvas_;
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61 }
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63 virtual unsigned int GetCanvasWidth() const
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64 {
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65 return canvas_.GetWidth();
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66 }
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68 virtual unsigned int GetCanvasHeight() const
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69 {
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70 return canvas_.GetHeight();
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71 }
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73 void SetFont(size_t index,
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74 GlyphBitmapAlphabet* dict); // Takes ownership
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75
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76 #if ORTHANC_ENABLE_LOCALE == 1
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77 virtual void SetFont(size_t index,
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78 Orthanc::EmbeddedResources::FileResourceId resource,
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79 unsigned int fontSize,
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80 Orthanc::Encoding codepage);
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81 #endif
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82
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83 virtual void Refresh();
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84
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85 void UpdateSize(unsigned int canvasWidth,
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86 unsigned int canvasHeight);
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87
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88 Orthanc::ImageAccessor* RenderText(size_t fontIndex,
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89 const std::string& utf8) const;
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90 };
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91 }