Mercurial > hg > orthanc-stone
view Framework/Widgets/CairoWidget.cpp @ 463:1155d0b4f557 am-touch-events
debug build by default to have access to the C++ call stack when assertion fails
author | Alain Mazy <alain@mazy.be> |
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date | Thu, 07 Feb 2019 09:26:57 +0100 |
parents | b70e9be013e4 |
children | aaeec7be8fb7 |
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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 "CairoWidget.h" #include <Core/Images/ImageProcessing.h> #include <Core/OrthancException.h> namespace OrthancStone { static bool IsAligned(const Orthanc::ImageAccessor& target) { // TODO return true; } CairoWidget::CairoWidget(const std::string& name) : WidgetBase(name) { } void CairoWidget::SetSize(unsigned int width, unsigned int height) { surface_.SetSize(width, height); } bool CairoWidget::Render(Orthanc::ImageAccessor& target) { // Don't call the base class here, as // "ClearBackgroundCairo()" is a faster alternative if (IsAligned(target)) { CairoSurface surface(target); CairoContext context(surface); ClearBackgroundCairo(context); return RenderCairo(context); } else { CairoContext context(surface_); ClearBackgroundCairo(context); if (RenderCairo(context)) { Orthanc::ImageAccessor surface; surface_.GetReadOnlyAccessor(surface); Orthanc::ImageProcessing::Copy(target, surface); return true; } else { return false; } } } void CairoWidget::RenderMouseOver(Orthanc::ImageAccessor& target, int x, int y) { if (IsAligned(target)) { CairoSurface surface(target); CairoContext context(surface); RenderMouseOverCairo(context, x, y); } else { Orthanc::ImageAccessor accessor; surface_.GetWriteableAccessor(accessor); Orthanc::ImageProcessing::Copy(accessor, target); CairoContext context(surface_); RenderMouseOverCairo(context, x, y); Orthanc::ImageProcessing::Copy(target, accessor); } } }