Mercurial > hg > orthanc-stone
annotate Framework/Toolbox/ViewportGeometry.h @ 340:f5d5814a41a0 am-2
rendering BitmapStack
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Sat, 20 Oct 2018 18:26:05 +0200 |
| parents | 50e5ec1bdd46 |
| children | b70e9be013e4 |
| rev | line source |
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| 0 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 47 | 8 * modify it under the terms of the GNU Affero General Public License |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 0 | 11 * |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 47 | 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 0 | 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #pragma once | |
| 23 | |
| 24 #include "../Viewport/CairoContext.h" | |
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25 #include "Extent2D.h" |
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26 #include "LinearAlgebra.h" |
| 0 | 27 |
| 28 namespace OrthancStone | |
| 29 { | |
| 30 class ViewportGeometry | |
| 31 { | |
| 32 private: | |
| 33 // Extent of the scene (in world units) | |
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34 Extent2D sceneExtent_; |
| 0 | 35 |
| 36 // Size of the display (in pixels) | |
| 37 unsigned int width_; | |
| 38 unsigned int height_; | |
| 39 | |
| 40 // Zoom/pan | |
| 41 double zoom_; | |
| 42 double panX_; // In pixels (display units) | |
| 43 double panY_; | |
| 44 | |
| 45 cairo_matrix_t transform_; // Scene-to-display transformation | |
| 46 | |
| 47 void ComputeTransform(); | |
| 48 | |
| 49 public: | |
| 50 ViewportGeometry(); | |
| 51 | |
| 52 void SetDisplaySize(unsigned int width, | |
| 53 unsigned int height); | |
| 54 | |
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55 void SetSceneExtent(const Extent2D& extent); |
| 0 | 56 |
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57 const Extent2D& GetSceneExtent() const |
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58 { |
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59 return sceneExtent_; |
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60 } |
| 0 | 61 |
| 62 void MapDisplayToScene(double& sceneX /* out */, | |
| 63 double& sceneY /* out */, | |
| 64 double x, | |
| 65 double y) const; | |
| 66 | |
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67 void MapPixelCenterToScene(double& sceneX /* out */, |
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68 double& sceneY /* out */, |
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69 int x, |
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70 int y) const; |
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71 |
| 0 | 72 void MapSceneToDisplay(int& displayX /* out */, |
| 73 int& displayY /* out */, | |
| 74 double x, | |
| 75 double y) const; | |
| 76 | |
| 77 unsigned int GetDisplayWidth() const | |
| 78 { | |
| 79 return width_; | |
| 80 } | |
| 81 | |
| 82 unsigned int GetDisplayHeight() const | |
| 83 { | |
| 84 return height_; | |
| 85 } | |
| 86 | |
| 87 double GetZoom() const | |
| 88 { | |
| 89 return zoom_; | |
| 90 } | |
| 91 | |
| 330 | 92 void FitContent(); |
| 0 | 93 |
| 94 void ApplyTransform(CairoContext& context) const; | |
| 95 | |
| 96 void GetPan(double& x, | |
| 97 double& y) const; | |
| 98 | |
| 99 void SetPan(double x, | |
| 100 double y); | |
| 101 | |
| 102 void SetZoom(double zoom); | |
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103 |
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104 Matrix GetMatrix() const; |
| 0 | 105 }; |
| 106 } |