Mercurial > hg > orthanc-stone
comparison 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 |
parents | |
children | 61ba4b504e9a |
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594:9807ed3d3e03 | 595:6e471e6cf09b |
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1 /** | |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017-2019 Osimis S.A., Belgium | |
6 * | |
7 * This program is free software: you can redistribute it and/or | |
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. | |
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 | |
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 | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
22 #include "CairoPolylineRenderer.h" | |
23 | |
24 #include "../PolylineSceneLayer.h" | |
25 | |
26 namespace OrthancStone | |
27 { | |
28 namespace Internals | |
29 { | |
30 void CairoPolylineRenderer::Render(const AffineTransform2D& transform) | |
31 { | |
32 const PolylineSceneLayer& layer = GetLayer<PolylineSceneLayer>(); | |
33 | |
34 cairo_t* cr = GetCairoContext(); | |
35 | |
36 cairo_set_source_rgb(cr, layer.GetRedAsFloat(), layer.GetGreenAsFloat(), layer.GetBlueAsFloat()); | |
37 cairo_set_line_width(cr, layer.GetThickness()); | |
38 | |
39 for (size_t i = 0; i < layer.GetChainsCount(); i++) | |
40 { | |
41 const PolylineSceneLayer::Chain& chain = layer.GetChain(i); | |
42 | |
43 if (!chain.empty()) | |
44 { | |
45 for (size_t j = 0; j < chain.size(); j++) | |
46 { | |
47 ScenePoint2D p = chain[j].Apply(transform); | |
48 | |
49 if (j == 0) | |
50 { | |
51 cairo_move_to(cr, p.GetX(), p.GetY()); | |
52 } | |
53 else | |
54 { | |
55 cairo_line_to(cr, p.GetX(), p.GetY()); | |
56 } | |
57 } | |
58 | |
59 if (layer.IsClosedChain(i)) | |
60 { | |
61 ScenePoint2D p = chain[0].Apply(transform); | |
62 cairo_line_to(cr, p.GetX(), p.GetY()); | |
63 } | |
64 } | |
65 } | |
66 | |
67 cairo_stroke(cr); | |
68 } | |
69 } | |
70 } |