diff --git a/Core/Code/DataManagement/mitkLevelWindowManager.cpp b/Core/Code/DataManagement/mitkLevelWindowManager.cpp index 5acc833f3a..4a94760da5 100644 --- a/Core/Code/DataManagement/mitkLevelWindowManager.cpp +++ b/Core/Code/DataManagement/mitkLevelWindowManager.cpp @@ -1,407 +1,399 @@ /*=================================================================== The Medical Imaging Interaction Toolkit (MITK) Copyright (c) German Cancer Research Center, Division of Medical and Biological Informatics. All rights reserved. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See LICENSE.txt or http://www.mitk.org for details. ===================================================================*/ #include "mitkLevelWindowManager.h" #include #include "mitkDataStorage.h" #include "mitkNodePredicateBase.h" #include "mitkNodePredicateProperty.h" #include "mitkNodePredicateDataType.h" #include "mitkNodePredicateAnd.h" #include "mitkNodePredicateOr.h" #include "mitkNodePredicateNot.h" #include "mitkProperties.h" #include "mitkMessage.h" mitk::LevelWindowManager::LevelWindowManager() : m_DataStorage(NULL) , m_LevelWindowProperty(NULL) , m_AutoTopMost(true) , m_IsObserverTagSet(false) , m_CurrentImage(NULL) , m_IsPropertyModifiedTagSet(false) { } mitk::LevelWindowManager::~LevelWindowManager() { if (m_DataStorage.IsNotNull()) { m_DataStorage->AddNodeEvent.RemoveListener( - MessageDelegate1( this, &LevelWindowManager::DataStorageChanged )); + MessageDelegate1( this, &LevelWindowManager::DataStorageAddedNode )); m_DataStorage->RemoveNodeEvent.RemoveListener( MessageDelegate1( this, &LevelWindowManager::DataStorageRemovedNode )); m_DataStorage = NULL; } if (m_IsPropertyModifiedTagSet && m_LevelWindowProperty.IsNotNull()) { m_LevelWindowProperty->RemoveObserver(m_PropertyModifiedTag); m_IsPropertyModifiedTagSet = false; } - for( ObserverToPropertyMap::iterator iter = m_PropObserverToNode.begin(); - iter != m_PropObserverToNode.end(); - ++iter ) - { - (*iter).second->RemoveObserver((*iter).first.first); - (*iter).second = 0; - } - m_PropObserverToNode.clear(); - - for( ObserverToPropertyMap::iterator iter = m_PropObserverToNode2.begin(); - iter != m_PropObserverToNode2.end(); - ++iter ) - { - (*iter).second->RemoveObserver((*iter).first.first); - (*iter).second = 0; - } - m_PropObserverToNode2.clear(); + //clear both observer maps + this->ClearPropObserverLists(); } void mitk::LevelWindowManager::SetDataStorage( mitk::DataStorage* ds ) { if (ds == NULL) return; /* remove listeners of old DataStorage */ if (m_DataStorage.IsNotNull()) { m_DataStorage->AddNodeEvent.RemoveListener( - MessageDelegate1( this, &LevelWindowManager::DataStorageChanged )); + MessageDelegate1( this, &LevelWindowManager::DataStorageAddedNode )); m_DataStorage->RemoveNodeEvent.RemoveListener( MessageDelegate1( this, &LevelWindowManager::DataStorageRemovedNode )); } /* register listener for new DataStorage */ m_DataStorage = ds; // register m_DataStorage->AddNodeEvent.AddListener( - MessageDelegate1( this, &LevelWindowManager::DataStorageChanged )); + MessageDelegate1( this, &LevelWindowManager::DataStorageAddedNode )); m_DataStorage->RemoveNodeEvent.AddListener( MessageDelegate1( this, &LevelWindowManager::DataStorageRemovedNode )); - this->DataStorageChanged(); // update us with new DataStorage + this->DataStorageAddedNode(); // update us with new DataStorage } void mitk::LevelWindowManager::OnPropertyModified(const itk::EventObject& ) { Modified(); } void mitk::LevelWindowManager::SetAutoTopMostImage(bool autoTopMost, const mitk::DataNode* removedNode) { m_AutoTopMost = autoTopMost; if (m_AutoTopMost == false) return; if (m_IsPropertyModifiedTagSet && m_LevelWindowProperty.IsNotNull()) { m_LevelWindowProperty->RemoveObserver(m_PropertyModifiedTag); m_IsPropertyModifiedTagSet = false; } /* search topmost image */ if (m_DataStorage.IsNull()) { itkExceptionMacro("DataStorage not set"); } int maxLayer = itk::NumericTraits::min(); m_LevelWindowProperty = NULL; mitk::DataNode::Pointer topLevelNode; mitk::DataStorage::SetOfObjects::ConstPointer all = this->GetRelevantNodes(); for (mitk::DataStorage::SetOfObjects::ConstIterator it = all->Begin(); it != all->End(); ++it) { mitk::DataNode::Pointer node = it->Value(); if (node.IsNull() || (removedNode != NULL && node == removedNode)) continue; node->SetBoolProperty( "imageForLevelWindow", false ); if (node->IsVisible(NULL) == false) continue; int layer = 0; node->GetIntProperty("layer", layer); if ( layer < maxLayer ) continue; mitk::LevelWindowProperty::Pointer levelWindowProperty = dynamic_cast(node->GetProperty("levelwindow")); if (levelWindowProperty.IsNull()) continue; m_LevelWindowProperty = levelWindowProperty; m_CurrentImage = dynamic_cast(node->GetData()); topLevelNode = node; maxLayer = layer; } if (topLevelNode.IsNotNull()) { topLevelNode->SetBoolProperty( "imageForLevelWindow", true ); } this->SetLevelWindowProperty( m_LevelWindowProperty ); if ( m_LevelWindowProperty.IsNull() ) { Modified(); } // else SetLevelWindowProperty will call Modified(); } // sets an specific LevelWindowProperty, all changes will affect the image belonging to this property. void mitk::LevelWindowManager::SetLevelWindowProperty(LevelWindowProperty::Pointer levelWindowProperty) { if (levelWindowProperty.IsNull()) return; if (m_IsPropertyModifiedTagSet) // remove listener for old property { m_LevelWindowProperty->RemoveObserver(m_PropertyModifiedTag); m_IsPropertyModifiedTagSet = false; } m_LevelWindowProperty = levelWindowProperty; itk::ReceptorMemberCommand::Pointer command = itk::ReceptorMemberCommand::New(); // register listener for new property command->SetCallbackFunction(this, &LevelWindowManager::OnPropertyModified); m_PropertyModifiedTag = m_LevelWindowProperty->AddObserver( itk::ModifiedEvent(), command ); m_IsPropertyModifiedTagSet = true; /* search image than belongs to the property */ mitk::NodePredicateProperty::Pointer p = mitk::NodePredicateProperty::New("levelwindow", m_LevelWindowProperty); mitk::DataNode* n = m_DataStorage->GetNode(p); if (n == NULL) { mitkThrow() << "No Image in DataStorage that belongs to LevelWindow property" << m_LevelWindowProperty; } m_CurrentImage = dynamic_cast(n->GetData()); n->SetBoolProperty( "imageForLevelWindow", true ); this->Modified(); } // returns the current mitkLevelWindowProperty object from the image that is affected by changes mitk::LevelWindowProperty::Pointer mitk::LevelWindowManager::GetLevelWindowProperty() { return m_LevelWindowProperty; } // returns Level/Window values for the current image const mitk::LevelWindow& mitk::LevelWindowManager::GetLevelWindow() { if (m_LevelWindowProperty.IsNotNull()) { return m_LevelWindowProperty->GetLevelWindow(); } else { itkExceptionMacro("No LevelWindow available!"); } } // sets new Level/Window values and informs all listeners about changes void mitk::LevelWindowManager::SetLevelWindow(const mitk::LevelWindow& levelWindow) { if (m_LevelWindowProperty.IsNotNull()) { m_LevelWindowProperty->SetLevelWindow(levelWindow); } this->Modified(); } -void mitk::LevelWindowManager::DataStorageChanged( const mitk::DataNode* ) +void mitk::LevelWindowManager::DataStorageAddedNode( const mitk::DataNode* ) { this->DataStorageRemovedNode(); } void mitk::LevelWindowManager::DataStorageRemovedNode( const mitk::DataNode* removedNode ) { - /* remove old observers */ - for (ObserverToPropertyMap::iterator iter = m_PropObserverToNode.begin(); - iter != m_PropObserverToNode.end(); - ++iter) - { - (*iter).second->RemoveObserver((*iter).first.first); - (*iter).second = 0; - } - m_PropObserverToNode.clear(); - - for (ObserverToPropertyMap::iterator iter = m_PropObserverToNode2.begin(); - iter != m_PropObserverToNode2.end(); - ++iter) - { - (*iter).second->RemoveObserver((*iter).first.first); - (*iter).second = 0; - } - m_PropObserverToNode2.clear(); - - if (m_DataStorage.IsNull()) - { - itkExceptionMacro("DataStorage not set"); - } - - /* listen to changes in visible property of all images */ - - mitk::DataStorage::SetOfObjects::ConstPointer all = this->GetRelevantNodes(); - for (mitk::DataStorage::SetOfObjects::ConstIterator it = all->Begin(); - it != all->End(); - ++it) - { - if (it->Value().IsNull()) - continue; - - /* register listener for changes in visible property */ - itk::ReceptorMemberCommand::Pointer command = itk::ReceptorMemberCommand::New(); - command->SetCallbackFunction(this, &LevelWindowManager::Update); - unsigned long idx = it->Value()->GetProperty("visible")->AddObserver( itk::ModifiedEvent(), command ); - m_PropObserverToNode[PropDataPair(idx, it->Value())] = it->Value()->GetProperty("visible"); - } - - /* listen to changes in layer property of all images */ - - for (mitk::DataStorage::SetOfObjects::ConstIterator it = all->Begin(); - it != all->End(); - ++it) - { - if (it->Value().IsNull()) - continue; - /* register listener for changes in layer property */ - itk::ReceptorMemberCommand::Pointer command2 = itk::ReceptorMemberCommand::New(); - command2->SetCallbackFunction(this, &LevelWindowManager::Update); - unsigned long idx = it->Value()->GetProperty("layer")->AddObserver( itk::ModifiedEvent(), command2 ); - m_PropObserverToNode2[PropDataPair(idx, it->Value())] = it->Value()->GetProperty("layer"); - } + m_NoteMarkedToDelete = removedNode; + this->ClearPropObserverLists(); //remove old observers + CreatePropObserverLists(); //create new observer lists /* search image than belongs to the property */ if (m_LevelWindowProperty.IsNull()) { SetAutoTopMostImage(true, removedNode); } else { mitk::NodePredicateProperty::Pointer p2 = mitk::NodePredicateProperty::New("levelwindow", m_LevelWindowProperty); mitk::DataNode* n = m_DataStorage->GetNode(p2); if (n == NULL || m_AutoTopMost) // if node was deleted, change our behaviour to AutoTopMost, if AutoTopMost is true change level window to topmost node { SetAutoTopMostImage(true, removedNode); } - } + } + m_NoteMarkedToDelete = NULL; } int mitk::LevelWindowManager::GetNumberOfObservers() { -MITK_INFO << "observers: " << m_PropObserverToNode2.size(); if ((m_PropObserverToNode.size() != m_PropObserverToNode2.size()) || (m_PropObserverToNode2.size() != this->GetRelevantNodes()->size())) {mitkThrow() << "Wrong number of observers in Level Window Manager!";} return m_PropObserverToNode.size(); } mitk::DataStorage* mitk::LevelWindowManager::GetDataStorage() { return m_DataStorage.GetPointer(); } // true if changes on slider or line-edits will affect always the topmost layer image bool mitk::LevelWindowManager::isAutoTopMost() { return m_AutoTopMost; } void mitk::LevelWindowManager::Update(const itk::EventObject&) // visible property of a image has changed { if (m_AutoTopMost) { SetAutoTopMostImage(true); return; } mitk::DataStorage::SetOfObjects::ConstPointer all = this->GetRelevantNodes(); for (mitk::DataStorage::SetOfObjects::ConstIterator it = all->Begin(); it != all->End(); ++it) { mitk::DataNode::Pointer node = it->Value(); if (node.IsNull()) continue; node->SetBoolProperty( "imageForLevelWindow", false ); if (node->IsVisible(NULL) == false) continue; mitk::LevelWindowProperty::Pointer levelWindowProperty = dynamic_cast(node->GetProperty("levelwindow")); if (levelWindowProperty.IsNull()) continue; m_LevelWindowProperty = levelWindowProperty; m_CurrentImage = dynamic_cast(node->GetData()); node->SetBoolProperty( "imageForLevelWindow", true ); if (m_LevelWindowProperty.IsNull() && m_LevelWindowProperty.GetPointer() == levelWindowProperty) // we found our m_LevelWindowProperty { return; } } Modified(); } mitk::DataStorage::SetOfObjects::ConstPointer mitk::LevelWindowManager::GetRelevantNodes() { if (m_DataStorage.IsNull()) return mitk::DataStorage::SetOfObjects::ConstPointer(mitk::DataStorage::SetOfObjects::New()); // return empty set mitk::BoolProperty::Pointer trueProp = mitk::BoolProperty::New(true); mitk::NodePredicateProperty::Pointer notBinary = mitk::NodePredicateProperty::New("binary", mitk::BoolProperty::New(false)); mitk::NodePredicateProperty::Pointer hasLevelWindow = mitk::NodePredicateProperty::New("levelwindow", NULL); mitk::NodePredicateDataType::Pointer isImage = mitk::NodePredicateDataType::New("Image"); mitk::NodePredicateDataType::Pointer isDImage = mitk::NodePredicateDataType::New("DiffusionImage"); mitk::NodePredicateDataType::Pointer isTImage = mitk::NodePredicateDataType::New("TensorImage"); mitk::NodePredicateDataType::Pointer isQImage = mitk::NodePredicateDataType::New("QBallImage"); mitk::NodePredicateOr::Pointer predicateTypes = mitk::NodePredicateOr::New(); predicateTypes->AddPredicate(isImage); predicateTypes->AddPredicate(isDImage); predicateTypes->AddPredicate(isTImage); predicateTypes->AddPredicate(isQImage); mitk::NodePredicateAnd::Pointer predicate = mitk::NodePredicateAnd::New(); predicate->AddPredicate(notBinary); predicate->AddPredicate(hasLevelWindow); predicate->AddPredicate(predicateTypes); mitk::DataStorage::SetOfObjects::ConstPointer relevantNodes = m_DataStorage->GetSubset( predicate ); + return relevantNodes; } mitk::Image* mitk::LevelWindowManager::GetCurrentImage() { return m_CurrentImage; } + +void mitk::LevelWindowManager::ClearPropObserverLists() +{ +for( ObserverToPropertyMap::iterator iter = m_PropObserverToNode.begin(); + iter != m_PropObserverToNode.end(); + ++iter ) + { + (*iter).second->RemoveObserver((*iter).first.first); + (*iter).second = 0; + } + m_PropObserverToNode.clear(); + + for( ObserverToPropertyMap::iterator iter = m_PropObserverToNode2.begin(); + iter != m_PropObserverToNode2.end(); + ++iter ) + { + (*iter).second->RemoveObserver((*iter).first.first); + (*iter).second = 0; + } + m_PropObserverToNode2.clear(); +} + +void mitk::LevelWindowManager::CreatePropObserverLists() +{ + if (m_DataStorage.IsNull()) //check if data storage is set + {itkExceptionMacro("DataStorage not set");} + + /* add observers for all relevant nodes */ + mitk::DataStorage::SetOfObjects::ConstPointer all = this->GetRelevantNodes(); + for (mitk::DataStorage::SetOfObjects::ConstIterator it = all->Begin(); + it != all->End(); + ++it) + { + if ((it->Value().IsNull()) || (it->Value() == m_NoteMarkedToDelete)) + {continue;} + + /* register listener for changes in visible property */ + itk::ReceptorMemberCommand::Pointer command = itk::ReceptorMemberCommand::New(); + command->SetCallbackFunction(this, &LevelWindowManager::Update); + unsigned long idx = it->Value()->GetProperty("visible")->AddObserver( itk::ModifiedEvent(), command ); + m_PropObserverToNode[PropDataPair(idx, it->Value())] = it->Value()->GetProperty("visible"); + } + + /* add observers for all layer properties*/ + for (mitk::DataStorage::SetOfObjects::ConstIterator it = all->Begin(); + it != all->End(); + ++it) + { + if ((it->Value().IsNull()) || (it->Value() == m_NoteMarkedToDelete)) + {continue;} + /* register listener for changes in layer property */ + itk::ReceptorMemberCommand::Pointer command2 = itk::ReceptorMemberCommand::New(); + command2->SetCallbackFunction(this, &LevelWindowManager::Update); + unsigned long idx = it->Value()->GetProperty("layer")->AddObserver( itk::ModifiedEvent(), command2 ); + m_PropObserverToNode2[PropDataPair(idx, it->Value())] = it->Value()->GetProperty("layer"); + } + +} diff --git a/Core/Code/DataManagement/mitkLevelWindowManager.h b/Core/Code/DataManagement/mitkLevelWindowManager.h index 669b9447f0..2b9749a0d7 100644 --- a/Core/Code/DataManagement/mitkLevelWindowManager.h +++ b/Core/Code/DataManagement/mitkLevelWindowManager.h @@ -1,128 +1,133 @@ /*=================================================================== The Medical Imaging Interaction Toolkit (MITK) Copyright (c) German Cancer Research Center, Division of Medical and Biological Informatics. All rights reserved. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See LICENSE.txt or http://www.mitk.org for details. ===================================================================*/ #ifndef mitkLevelWindowManager_h #define mitkLevelWindowManager_h #include "mitkDataStorage.h" #include "mitkLevelWindowProperty.h" #include "mitkBaseProperty.h" #include #include namespace mitk { /** \brief Provides access to the LevelWindowProperty object and LevelWindow of the "current" image. - provides a LevelWindowProperty for purposes like GUI editors - this property comes from one of two possible sources - either something (e.g. the application) sets the property because of some user selection - OR the "Auto top-most" logic is used to search a DataStorage for the image with the highest "layer" property value Changes on Level/Window can be set with SetLevelWindow() and will affect either the topmost layer image, if isAutoTopMost() returns true, or an image which is set by SetLevelWindowProperty(LevelWindowProperty::Pointer levelWindowProperty). Changes to Level/Window, when another image gets active or by SetLevelWindow(const LevelWindow& levelWindow), will be sent to all listeners by Modified(). DataStorageChanged() listens to the DataStorage for new or removed images. Depending on how m_AutoTopMost is set, the new image becomes active or not. If an image is removed from the DataStorage and m_AutoTopMost is false, there is a check to proof, if the active image is still available. If not, then m_AutoTopMost becomes true. */ class MITK_CORE_EXPORT LevelWindowManager : public itk::Object { public: mitkClassMacro(LevelWindowManager, itk::Object) itkNewMacro(Self); void SetDataStorage(DataStorage* ds); DataStorage* GetDataStorage(); ///< returns the datastorage /// if autoTopMost == true: sets the topmost layer image to be affected by changes /// if removedNode != NULL a node was removed from DataStorage void SetAutoTopMostImage(bool autoTopMost, const DataNode* removedNode = NULL); void Update(const itk::EventObject& e); ///< gets called if a visible property changes /** * @brief Sets an specific LevelWindowProperty, all changes will affect the image belonging to this property. * @throw mitk::Exception Throws an exception if the there is no image in the data storage which belongs to this property. */ void SetLevelWindowProperty(LevelWindowProperty::Pointer levelWindowProperty); /// sets new Level/Window values and informs all listeners about changes void SetLevelWindow(const LevelWindow& levelWindow); /// returns Level/Window values for the current image const LevelWindow& GetLevelWindow(); /// returns the current mitkLevelWindowProperty object from the image that is affected by changes LevelWindowProperty::Pointer GetLevelWindowProperty(); /// true if changes on slider or line-edits will affect always the topmost layer image bool isAutoTopMost(); - /// Change notifications from DataStorage - void DataStorageChanged(const DataNode* n = NULL); + /** @brief This method is called when a node is added to the data storage. */ + void DataStorageAddedNode(const DataNode* n = NULL); - /// Node removal notifications from DataStorage + /** @brief This method is called when a node is removed to the data storage. */ void DataStorageRemovedNode(const DataNode* removedNode = NULL); /// change notifications from mitkLevelWindowProperty void OnPropertyModified(const itk::EventObject& e); Image* GetCurrentImage(); ///< return the currently active image /** * @return Returns the current number of observers which are registered in this object. * @throw mitk::Exception Throws an exception if the number of observers differs from * the number of relevant objects * which means that something is wrong. * */ int GetNumberOfObservers(); /** * returns all nodes in the DataStorage that have the following properties: * "visible" == true, "binary" == false, "levelwindow", and DataType == Image */ DataStorage::SetOfObjects::ConstPointer GetRelevantNodes(); protected: LevelWindowManager(); ~LevelWindowManager(); DataStorage::Pointer m_DataStorage; LevelWindowProperty::Pointer m_LevelWindowProperty; ///< pointer to the LevelWindowProperty of the current image typedef std::pair PropDataPair; typedef std::map ObserverToPropertyMap; - ObserverToPropertyMap m_PropObserverToNode; ///< map to hold observer IDīs to every visible property of DataNodeīs BaseProperty + + ObserverToPropertyMap m_PropObserverToNode; ///< map to hold observer IDīs to every visible property of DataNodeīs BaseProperty ObserverToPropertyMap m_PropObserverToNode2; ///< map to hold observer IDīs to every layer property of DataNodeīs BaseProperty + void ClearPropObserverLists(); ///< internal help method to clear both lists/maps. + void CreatePropObserverLists(); ///< internal help method to create both lists/maps. + const mitk::DataNode* m_NoteMarkedToDelete; ///< this variable holds a data node which will be deleted from the datastorage immedeately (if there is one, NULL otherways) + bool m_AutoTopMost; unsigned long m_ObserverTag; bool m_IsObserverTagSet; unsigned long m_PropertyModifiedTag; Image* m_CurrentImage; bool m_IsPropertyModifiedTagSet; }; } #endif