Mercurial > hg > orthanc-stone
view Framework/Scene2D/Internals/CairoInfoPanelRenderer.cpp @ 871:4bc8d9609447
Added support for measuring tool edition in TrackerSampleApp
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Tue, 25 Jun 2019 18:17:33 +0200 |
parents | 9e51fb773bbd |
children | 80829436ce0c 6e888cf6a48b |
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/** * 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 "CairoInfoPanelRenderer.h" #include "../InfoPanelSceneLayer.h" namespace OrthancStone { namespace Internals { void CairoInfoPanelRenderer::Update(const ISceneLayer& layer) { const InfoPanelSceneLayer& l = dynamic_cast<const InfoPanelSceneLayer&>(layer); texture_.Copy(l.GetTexture(), true); anchor_ = l.GetAnchor(); isLinearInterpolation_ = l.IsLinearInterpolation(); } void CairoInfoPanelRenderer::Render(const AffineTransform2D& transform) { int dx, dy; InfoPanelSceneLayer::ComputeAnchorLocation( dx, dy, anchor_, texture_.GetWidth(), texture_.GetHeight(), target_.GetCairoWidth(), target_.GetCairoHeight()); cairo_t* cr = target_.GetCairoContext(); cairo_save(cr); cairo_matrix_t t; cairo_matrix_init_identity(&t); cairo_matrix_translate(&t, dx, dy); cairo_transform(cr, &t); 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); } } }