Mercurial > hg > orthanc-stone
view Framework/Scene2D/Internals/CompositorHelper.cpp @ 1039:3a35d8397559
merge
author | Alain Mazy <alain@mazy.be> |
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date | Mon, 07 Oct 2019 22:37:24 +0200 |
parents | 6e888cf6a48b |
children | 6009c59d8676 2d8ab34c8c91 |
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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 "CompositorHelper.h" #include <Core/OrthancException.h> namespace OrthancStone { namespace Internals { class CompositorHelper::Item : public boost::noncopyable { private: std::auto_ptr<ILayerRenderer> renderer_; const ISceneLayer& layer_; uint64_t layerIdentifier_; uint64_t lastRevision_; public: Item(ILayerRenderer* renderer, // Takes ownership const ISceneLayer& layer, uint64_t layerIdentifier) : renderer_(renderer), layer_(layer), layerIdentifier_(layerIdentifier), lastRevision_(layer.GetRevision()) { if (renderer == NULL) { throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); } } ILayerRenderer& GetRenderer() const { assert(renderer_.get() != NULL); return *renderer_; } const ISceneLayer& GetLayer() const { return layer_; } uint64_t GetLayerIdentifier() const { return layerIdentifier_; } uint64_t GetLastRevision() const { return lastRevision_; } void UpdateRenderer() { assert(renderer_.get() != NULL); renderer_->Update(layer_); lastRevision_ = layer_.GetRevision(); } }; void CompositorHelper::Visit(const ISceneLayer& layer, uint64_t layerIdentifier, int depth) { // "Visit()" is only applied to layers existing in the scene assert(scene_.HasLayer(depth)); Content::iterator found = content_.find(depth); assert(found == content_.end() || found->second != NULL); if (found == content_.end() || found->second->GetLayerIdentifier() != layerIdentifier) { // This is the first time this layer is rendered, or the layer // is not the same as before if (found != content_.end()) { delete found->second; content_.erase(found); } std::auto_ptr<ILayerRenderer> renderer(factory_.Create(layer)); if (renderer.get() != NULL) { renderer->Render(sceneTransform_, canvasWidth_, canvasHeight_); content_[depth] = new Item(renderer.release(), layer, layerIdentifier); } } else { // This layer has already been rendered assert(found->second->GetLastRevision() <= layer.GetRevision()); if (found->second->GetLastRevision() < layer.GetRevision()) { found->second->UpdateRenderer(); } found->second->GetRenderer().Render(sceneTransform_, canvasWidth_, canvasHeight_); } // Check invariants assert(content_.find(depth) == content_.end() || (content_[depth]->GetLayerIdentifier() == layerIdentifier && content_[depth]->GetLastRevision() == layer.GetRevision())); } CompositorHelper::~CompositorHelper() { for (Content::iterator it = content_.begin(); it != content_.end(); ++it) { assert(it->second != NULL); delete it->second; } } void CompositorHelper::Refresh(unsigned int canvasWidth, unsigned int canvasHeight) { // Bring coordinate (0,0) to the center of the canvas AffineTransform2D offset = AffineTransform2D::CreateOffset( static_cast<double>(canvasWidth) / 2.0, static_cast<double>(canvasHeight) / 2.0); sceneTransform_ = AffineTransform2D::Combine(offset, scene_.GetSceneToCanvasTransform()); canvasWidth_ = canvasWidth; canvasHeight_ = canvasHeight; scene_.Apply(*this); } } }