Mercurial > hg > orthanc-stone
view OrthancStone/Sources/Scene2D/Internals/OpenGLBasicPolylineRenderer.cpp @ 1556:8898f8f755c8
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 18 Aug 2020 11:58:47 +0200 |
parents | 244ad1e4e76a |
children | 85e117739eca |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2020 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "OpenGLBasicPolylineRenderer.h" #include "../../OpenGL/OpenGLIncludes.h" namespace OrthancStone { namespace Internals { OpenGLBasicPolylineRenderer::OpenGLBasicPolylineRenderer(OpenGL::IOpenGLContext& context, const PolylineSceneLayer& layer) : context_(context) { layer_.Copy(layer); } void OpenGLBasicPolylineRenderer::Render(const AffineTransform2D& transform) { if (!context_.IsContextLost()) { AffineTransform2D t = AffineTransform2D::Combine( AffineTransform2D::CreateOpenGLClipspace(context_.GetCanvasWidth(), context_.GetCanvasHeight()), transform); glUseProgram(0); glBegin(GL_LINES); for (size_t i = 0; i < layer_.GetChainsCount(); i++) { const Color& color = layer_.GetColor(i); glColor3ub(color.GetRed(), color.GetGreen(), color.GetBlue()); const PolylineSceneLayer::Chain& chain = layer_.GetChain(i); if (chain.size() > 1) { ScenePoint2D previous = chain[0].Apply(t); for (size_t j = 1; j < chain.size(); j++) { ScenePoint2D p = chain[j].Apply(t); glVertex2f(static_cast<GLfloat>(previous.GetX()), static_cast<GLfloat>(previous.GetY())); glVertex2f(static_cast<GLfloat>(p.GetX()), static_cast<GLfloat>(p.GetY())); previous = p; } if (layer_.IsClosedChain(i)) { ScenePoint2D p = chain[0].Apply(t); glVertex2f(static_cast<GLfloat>(previous.GetX()), static_cast<GLfloat>(previous.GetY())); glVertex2f(static_cast<GLfloat>(p.GetX()), static_cast<GLfloat>(p.GetY())); } } } glEnd(); } } void OpenGLBasicPolylineRenderer::Update(const ISceneLayer& layer) { layer_.Copy(dynamic_cast<const PolylineSceneLayer&>(layer)); } } }