Mercurial > hg > orthanc-stone
annotate Framework/Scene2D/Internals/CairoPolylineRenderer.cpp @ 595:6e471e6cf09b
CairoPolylineRenderer, SdlOpenGLWindow
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 26 Apr 2019 15:11:11 +0200 |
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children | 61ba4b504e9a |
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CairoPolylineRenderer, SdlOpenGLWindow
Sebastien Jodogne <s.jodogne@gmail.com>
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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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20 |
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21 |
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22 #include "CairoPolylineRenderer.h" |
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23 |
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24 #include "../PolylineSceneLayer.h" |
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25 |
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26 namespace OrthancStone |
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27 { |
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28 namespace Internals |
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29 { |
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30 void CairoPolylineRenderer::Render(const AffineTransform2D& transform) |
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31 { |
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32 const PolylineSceneLayer& layer = GetLayer<PolylineSceneLayer>(); |
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33 |
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34 cairo_t* cr = GetCairoContext(); |
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35 |
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36 cairo_set_source_rgb(cr, layer.GetRedAsFloat(), layer.GetGreenAsFloat(), layer.GetBlueAsFloat()); |
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37 cairo_set_line_width(cr, layer.GetThickness()); |
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38 |
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39 for (size_t i = 0; i < layer.GetChainsCount(); i++) |
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40 { |
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41 const PolylineSceneLayer::Chain& chain = layer.GetChain(i); |
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42 |
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43 if (!chain.empty()) |
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44 { |
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45 for (size_t j = 0; j < chain.size(); j++) |
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46 { |
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47 ScenePoint2D p = chain[j].Apply(transform); |
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48 |
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49 if (j == 0) |
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50 { |
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51 cairo_move_to(cr, p.GetX(), p.GetY()); |
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52 } |
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53 else |
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54 { |
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55 cairo_line_to(cr, p.GetX(), p.GetY()); |
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56 } |
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57 } |
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58 |
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59 if (layer.IsClosedChain(i)) |
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60 { |
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61 ScenePoint2D p = chain[0].Apply(transform); |
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62 cairo_line_to(cr, p.GetX(), p.GetY()); |
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63 } |
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64 } |
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65 } |
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66 |
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67 cairo_stroke(cr); |
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68 } |
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69 } |
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70 } |