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annotate OrthancStone/Sources/Scene2D/Internals/CairoPolylineRenderer.cpp @ 2124:16c01cc201e7

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updated copyright, as Osimis is not active on Orthanc anymore
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 30 May 2024 17:00:29 +0200
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children
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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) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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24 #include "CairoPolylineRenderer.h"
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26 #include "../PolylineSceneLayer.h"
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27
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28 namespace OrthancStone
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29 {
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30 namespace Internals
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31 {
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32 void CairoPolylineRenderer::Render(const AffineTransform2D& transform,
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33 unsigned int canvasWidth,
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34 unsigned int canvasHeight)
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35 {
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36 const PolylineSceneLayer& layer = GetLayer<PolylineSceneLayer>();
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38 cairo_t* cr = GetCairoContext();
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39
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40 cairo_set_line_width(cr, layer.GetThickness());
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42 for (size_t i = 0; i < layer.GetChainsCount(); i++)
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43 {
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44 const Color& color = layer.GetColor(i);
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45 cairo_set_source_rgb(cr, color.GetRedAsFloat(),
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46 color.GetGreenAsFloat(),
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47 color.GetBlueAsFloat());
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48
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49 const PolylineSceneLayer::Chain& chain = layer.GetChain(i);
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51 if (!chain.empty())
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52 {
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53 for (size_t j = 0; j < chain.size(); j++)
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54 {
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55 ScenePoint2D p = chain[j].Apply(transform);
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56
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57 if (j == 0)
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58 {
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59 cairo_move_to(cr, p.GetX(), p.GetY());
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60 }
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61 else
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62 {
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63 cairo_line_to(cr, p.GetX(), p.GetY());
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64 }
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65 }
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67 if (layer.IsClosedChain(i))
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68 {
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69 ScenePoint2D p = chain[0].Apply(transform);
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70 cairo_line_to(cr, p.GetX(), p.GetY());
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71 }
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72 }
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73
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74 cairo_stroke(cr);
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75 }
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76 }
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77 }
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78 }