Mercurial > hg > orthanc-stone

annotate Framework/Scene2D/Internals/CairoPolylineRenderer.cpp @ 700:059e1fd05fd6 refactor-viewport-controller

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Introduced the ViewportController that sits between the application and the Scene2D to handle the trackers and measuring tools. This is a work in progress. The Scene2D is no longer an observable. Message sending is managed by the ViewportController. Move some refs to shared and weak to prevent lifetime issues.
author Benjamin Golinvaux <bgo@osimis.io>
date Sun, 19 May 2019 16:26:17 +0200
parents 6e471e6cf09b
children 61ba4b504e9a
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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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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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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 }