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annotate OrthancStone/Sources/Scene2D/Internals/CairoBaseRenderer.h @ 1652:fa9e6bf84958

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integrating pdf.js into Stone Web viewer
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 16 Nov 2020 20:47:53 +0100
parents 8563ea5d8ae4
children 9ac2a65d4172
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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) 2017-2020 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 Lesser 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 * Lesser 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 Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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23 #pragma once
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25 #include "ICairoContextProvider.h"
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26 #include "CompositorHelper.h"
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27
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28 #include <Compatibility.h>
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30 namespace OrthancStone
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31 {
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32 namespace Internals
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33 {
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34 class CairoBaseRenderer : public CompositorHelper::ILayerRenderer
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35 {
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36 private:
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37 ICairoContextProvider& target_;
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38 std::unique_ptr<ISceneLayer> layer_;
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40 protected:
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41 template<typename T>
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42 const T& GetLayer() const
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43 {
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44 return dynamic_cast<T&>(*layer_);
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45 }
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46
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47 cairo_t* GetCairoContext() const
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48 {
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49 return target_.GetCairoContext();
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50 }
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52 public:
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53 CairoBaseRenderer(ICairoContextProvider& target,
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54 const ISceneLayer& layer) :
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55 target_(target)
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56 {
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57 Update(layer);
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58 }
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59
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60 virtual void Update(const ISceneLayer& layer) ORTHANC_OVERRIDE
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61 {
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62 layer_.reset(layer.Clone());
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63 }
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64 };
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65 }
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66 }