Mercurial > hg > orthanc-stone
view OrthancStone/Sources/Scene2D/Internals/CairoColorTextureRenderer.cpp @ 1615:f5d4bd7b5593
new class: OsiriXLayerFactory
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 30 Oct 2020 17:26:44 +0100 |
parents | 8563ea5d8ae4 |
children | 9ac2a65d4172 |
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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 Lesser 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/>. **/ #include "CairoColorTextureRenderer.h" #include "../ColorTextureSceneLayer.h" namespace OrthancStone { namespace Internals { CairoColorTextureRenderer::CairoColorTextureRenderer(ICairoContextProvider& target, const ISceneLayer& layer) : target_(target) { Update(layer); } void CairoColorTextureRenderer::Update(const ISceneLayer& layer) { const ColorTextureSceneLayer& l = dynamic_cast<const ColorTextureSceneLayer&>(layer); texture_.Copy(l.GetTexture(), true); textureTransform_ = l.GetTransform(); isLinearInterpolation_ = l.IsLinearInterpolation(); } void CairoColorTextureRenderer::RenderColorTexture(ICairoContextProvider& target, const AffineTransform2D& transform, CairoSurface& texture, const AffineTransform2D& textureTransform, bool isLinearInterpolation) { cairo_t* cr = target.GetCairoContext(); AffineTransform2D t = AffineTransform2D::Combine(transform, textureTransform); Matrix h = t.GetHomogeneousMatrix(); cairo_save(cr); cairo_matrix_t m; cairo_matrix_init(&m, h(0, 0), h(1, 0), h(0, 1), h(1, 1), h(0, 2), h(1, 2)); cairo_transform(cr, &m); cairo_set_operator(cr, CAIRO_OPERATOR_OVER); cairo_set_source_surface(cr, texture.GetObject(), 0, 0); if (isLinearInterpolation) { cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_BILINEAR); } else { cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST); } cairo_paint(cr); cairo_restore(cr); } } }