Mercurial > hg > orthanc-stone
diff OrthancStone/Sources/Scene2D/Scene2D.cpp @ 1512:244ad1e4e76a
reorganization of folders
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Tue, 07 Jul 2020 16:21:02 +0200 |
parents | Framework/Scene2D/Scene2D.cpp@30deba7bc8e2 |
children | 4fb8fdf03314 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OrthancStone/Sources/Scene2D/Scene2D.cpp Tue Jul 07 16:21:02 2020 +0200 @@ -0,0 +1,272 @@ +/** + * 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 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 "Scene2D.h" + +#include <OrthancException.h> + + +namespace OrthancStone +{ + class Scene2D::Item + { + private: + std::unique_ptr<ISceneLayer> layer_; + uint64_t identifier_; + + public: + Item(ISceneLayer* layer, + uint64_t identifier) : + layer_(layer), + identifier_(identifier) + { + if (layer == NULL) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); + } + } + + ISceneLayer& GetLayer() const + { + if (layer_.get() == NULL) + { + LOG(ERROR) << "Scene2D::Item::GetLayer(): (layer_.get() == NULL)"; + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); + } + else + { + return *layer_; + } + } + + ISceneLayer* ReleaseLayer() + { + if (layer_.get() == NULL) + { + LOG(ERROR) << "Scene2D::Item::ReleaseLayer(): (layer_.get() == NULL)"; + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); + } + else + { + return layer_.release(); + } + } + + uint64_t GetIdentifier() const + { + return identifier_; + } + }; + + + Scene2D::Scene2D(const Scene2D& other) + : sceneToCanvas_(other.sceneToCanvas_) + , canvasToScene_(other.canvasToScene_) + , layerCounter_(0) + { + for (Content::const_iterator it = other.content_.begin(); + it != other.content_.end(); ++it) + { + content_[it->first] = new Item(it->second->GetLayer().Clone(), layerCounter_++); + } + } + + + Scene2D::~Scene2D() + { + for (Content::iterator it = content_.begin(); + it != content_.end(); ++it) + { + assert(it->second != NULL); + delete it->second; + } + } + + + void Scene2D::SetLayer(int depth, + ISceneLayer* layer) // Takes ownership + { + LOG(TRACE) << "SetLayer(" << depth << ", " << reinterpret_cast<intptr_t>(layer) << ")"; + std::unique_ptr<Item> item(new Item(layer, layerCounter_++)); + + if (layer == NULL) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); + } + + Content::iterator found = content_.find(depth); + + if (found == content_.end()) + { + content_[depth] = item.release(); + } + else + { + assert(found->second != NULL); + delete found->second; + found->second = item.release(); + } + } + + + void Scene2D::DeleteLayer(int depth) + { + + Content::iterator found = content_.find(depth); + + if (found != content_.end()) + { + LOG(TRACE) << "DeleteLayer --found-- (" << depth << ")"; + assert(found->second != NULL); + delete found->second; + content_.erase(found); + } + } + + + bool Scene2D::HasLayer(int depth) const + { + return (content_.find(depth) != content_.end()); + } + + + ISceneLayer& Scene2D::GetLayer(int depth) const + { + Content::const_iterator found = content_.find(depth); + + if (found == content_.end()) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); + } + else + { + assert(found->second != NULL); + return found->second->GetLayer(); + } + } + + + int Scene2D::GetMinDepth() const + { + if (content_.size() == 0) + return 0; + else + return content_.begin()->first; + } + + + int Scene2D::GetMaxDepth() const + { + if (content_.size() == 0) + return 0; + else + return content_.rbegin()->first; + } + + ISceneLayer* Scene2D::ReleaseLayer(int depth) + { + Content::iterator found = content_.find(depth); + + if (found == content_.end()) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); + } + else + { + assert(found->second != NULL); + + std::unique_ptr<ISceneLayer> layer(found->second->ReleaseLayer()); + assert(layer.get() != NULL); + + content_.erase(found); + + return layer.release(); + } + } + + void Scene2D::Apply(IVisitor& visitor) const + { + for (Content::const_iterator it = content_.begin(); + it != content_.end(); ++it) + { + assert(it->second != NULL); + visitor.Visit(*this, it->second->GetLayer(), it->second->GetIdentifier(), it->first); + } + } + + + void Scene2D::SetSceneToCanvasTransform(const AffineTransform2D& transform) + { + // Make sure the transform is invertible before making any change + AffineTransform2D inverse = AffineTransform2D::Invert(transform); + + sceneToCanvas_ = transform; + canvasToScene_ = inverse; + } + + void Scene2D::GetBoundingBox(Extent2D &target) const + { + target.Reset(); + + for (Content::const_iterator it = content_.begin(); + it != content_.end(); ++it) + { + assert(it->second != NULL); + + Extent2D tmp; + if (it->second->GetLayer().GetBoundingBox(tmp)) + { + target.Union(tmp); + } + } + } + + void Scene2D::FitContent(unsigned int canvasWidth, + unsigned int canvasHeight) + { + Extent2D extent; + + GetBoundingBox(extent); + + if (!extent.IsEmpty()) + { + double zoomX = static_cast<double>(canvasWidth) / extent.GetWidth(); + double zoomY = static_cast<double>(canvasHeight) / extent.GetHeight(); + + double zoom = std::min(zoomX, zoomY); + if (LinearAlgebra::IsCloseToZero(zoom)) + { + zoom = 1; + } + + double panX = extent.GetCenterX(); + double panY = extent.GetCenterY(); + + // Bring the center of the scene to (0,0) + AffineTransform2D t1 = AffineTransform2D::CreateOffset(-panX, -panY); + + // Scale the scene + AffineTransform2D t2 = AffineTransform2D::CreateScaling(zoom, zoom); + + SetSceneToCanvasTransform(AffineTransform2D::Combine(t2, t1)); + } + } +}