Mercurial > hg > orthanc-stone
diff Framework/Scene2D/Internals/OpenGLBasicPolylineRenderer.cpp @ 593:6bf8f881fcb5
OpenGLBasicPolylineRenderer
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 26 Apr 2019 13:04:56 +0200 |
parents | |
children | 1e26bb5f2a02 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Framework/Scene2D/Internals/OpenGLBasicPolylineRenderer.cpp Fri Apr 26 13:04:56 2019 +0200 @@ -0,0 +1,86 @@ +/** + * Stone of Orthanc + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2019 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) + { + AffineTransform2D t = AffineTransform2D::Combine( + AffineTransform2D::CreateOpenGLClipspace(context_.GetCanvasWidth(), context_.GetCanvasHeight()), + transform); + + glUseProgram(0); + glColor3ub(layer_.GetRed(), layer_.GetGreen(), layer_.GetBlue()); + + glBegin(GL_LINES); + + for (size_t i = 0; i < layer_.GetChainsCount(); i++) + { + 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(previous.GetX(), previous.GetY()); + glVertex2f(p.GetX(), p.GetY()); + + previous = p; + } + + if (layer_.IsClosedChain(i)) + { + ScenePoint2D p = chain[0].Apply(t); + + glVertex2f(previous.GetX(), previous.GetY()); + glVertex2f(p.GetX(), p.GetY()); + } + } + } + + glEnd(); + } + + + void OpenGLBasicPolylineRenderer::Update(const ISceneLayer& layer) + { + layer_.Copy(dynamic_cast<const PolylineSceneLayer&>(layer)); + } + } +}