Mercurial > hg > orthanc-stone

comparison OrthancStone/Sources/Scene2D/Internals/CairoPolylineRenderer.cpp @ 1512:244ad1e4e76a

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reorganization of folders
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Jul 2020 16:21:02 +0200
parents Framework/Scene2D/Internals/CairoPolylineRenderer.cpp@2d8ab34c8c91
children 4fb8fdf03314
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1511:9dfeee74c1e6 1512:244ad1e4e76a
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2020 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 unsigned int canvasWidth,
32 unsigned int canvasHeight)
33 {
34 const PolylineSceneLayer& layer = GetLayer<PolylineSceneLayer>();
35
36 cairo_t* cr = GetCairoContext();
37
38 cairo_set_line_width(cr, layer.GetThickness());
39
40 for (size_t i = 0; i < layer.GetChainsCount(); i++)
41 {
42 const Color& color = layer.GetColor(i);
43 cairo_set_source_rgb(cr, color.GetRedAsFloat(),
44 color.GetGreenAsFloat(),
45 color.GetBlueAsFloat());
46
47 const PolylineSceneLayer::Chain& chain = layer.GetChain(i);
48
49 if (!chain.empty())
50 {
51 for (size_t j = 0; j < chain.size(); j++)
52 {
53 ScenePoint2D p = chain[j].Apply(transform);
54
55 if (j == 0)
56 {
57 cairo_move_to(cr, p.GetX(), p.GetY());
58 }
59 else
60 {
61 cairo_line_to(cr, p.GetX(), p.GetY());
62 }
63 }
64
65 if (layer.IsClosedChain(i))
66 {
67 ScenePoint2D p = chain[0].Apply(transform);
68 cairo_line_to(cr, p.GetX(), p.GetY());
69 }
70 }
71
72 cairo_stroke(cr);
73 }
74 }
75 }
76 }