Medical Imaging Interaction Toolkit
2024.12.99-0da743f6
Medical Imaging Interaction Toolkit
QmitkAbstractDataStorageModel.h
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/*============================================================================
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The Medical Imaging Interaction Toolkit (MITK)
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Copyright (c) German Cancer Research Center (DKFZ)
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All rights reserved.
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Use of this source code is governed by a 3-clause BSD license that can be
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found in the LICENSE file.
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============================================================================*/
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#ifndef QmitkAbstractDataStorageModel_h
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#define QmitkAbstractDataStorageModel_h
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#include <
MitkQtWidgetsExports.h
>
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// mitk core
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#include <
mitkDataStorage.h
>
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#include <
mitkNodePredicateBase.h
>
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#include <
mitkWeakPointer.h
>
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// qt
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#include <QAbstractItemModel>
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/*
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* @brief This abstract class extends the 'QAbstractItemModel' to accept an 'mitk::DataStorage' and a 'mitk::NodePredicateBase'.
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* It registers itself as a node event listener of the data storage.
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* The 'QmitkAbstractDataStorageModel' provides three empty functions, 'NodeAdded', 'NodeChanged' and 'NodeRemoved', that
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* may be implemented by subclasses. These functions allow to react to the 'AddNodeEvent', 'ChangedNodeEvent' and
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* 'RemoveNodeEvent' of the data storage. This might be useful to force an update on a custom view to correctly
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* represent the content of the data storage.
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*
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* A concrete implementation of this class is used to store the temporarily shown data nodes of the data storage.
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* These nodes may be a subset of all the nodes inside the data storage, if a specific node predicate is set.
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*
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* A model that implements this class has to return mitk::DataNode::Pointer objects for model indexes when the
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* role is QmitkDataNodeRole.
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*/
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class
MITKQTWIDGETS_EXPORT
QmitkAbstractDataStorageModel
:
public
QAbstractItemModel
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{
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Q_OBJECT
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public
:
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~
QmitkAbstractDataStorageModel
()
override
;
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/*
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* @brief Sets the data storage and adds listener for node events.
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*
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* @param dataStorage A pointer to the data storage to set.
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*/
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void
SetDataStorage(
mitk::DataStorage
* dataStorage);
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mitk::DataStorage::Pointer
GetDataStorage()
const
;
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/*
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* @brief Sets the node predicate and updates the model data, according to the node predicate.
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*
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* @param nodePredicate A pointer to node predicate.
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*/
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void
SetNodePredicate(
const
mitk::NodePredicateBase
* nodePredicate);
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const
mitk::NodePredicateBase
*
GetNodePredicate
()
const
{
return
m_NodePredicate; }
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protected
:
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virtual
void
DataStorageChanged() = 0;
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virtual
void
NodePredicateChanged() = 0;
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virtual
void
NodeAdded(
const
mitk::DataNode
* node) = 0;
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virtual
void
NodeChanged(
const
mitk::DataNode
* node) = 0;
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virtual
void
NodeRemoved(
const
mitk::DataNode
* node) = 0;
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QmitkAbstractDataStorageModel
(QObject* parent =
nullptr
);
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QmitkAbstractDataStorageModel
(
mitk::DataStorage
* dataStorage, QObject* parent =
nullptr
);
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mitk::WeakPointer<mitk::DataStorage>
m_DataStorage
;
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mitk::NodePredicateBase::ConstPointer
m_NodePredicate
;
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private
:
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void
SetDataStorageDeleted();
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unsigned
long
m_DataStorageDeletedTag;
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};
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#endif
MITKQTWIDGETS_EXPORT
#define MITKQTWIDGETS_EXPORT
Definition:
MitkQtWidgetsExports.h:15
mitkDataStorage.h
itk::SmartPointer< Self >
mitk::NodePredicateBase
Interface for evaluation conditions used in the DataStorage class GetSubset() method.
Definition:
mitkNodePredicateBase.h:35
mitkNodePredicateBase.h
QmitkAbstractDataStorageModel::GetNodePredicate
const mitk::NodePredicateBase * GetNodePredicate() const
Definition:
QmitkAbstractDataStorageModel.h:62
QmitkAbstractDataStorageModel::m_NodePredicate
mitk::NodePredicateBase::ConstPointer m_NodePredicate
Definition:
QmitkAbstractDataStorageModel.h:77
MitkQtWidgetsExports.h
mitk::DataStorage
Data management class that handles 'was created by' relations.
Definition:
mitkDataStorage.h:43
mitkWeakPointer.h
QmitkAbstractDataStorageModel::m_DataStorage
mitk::WeakPointer< mitk::DataStorage > m_DataStorage
Definition:
QmitkAbstractDataStorageModel.h:76
mitk::WeakPointer< mitk::DataStorage >
QmitkAbstractDataStorageModel
Definition:
QmitkAbstractDataStorageModel.h:40
mitk::DataNode
Class for nodes of the DataTree.
Definition:
mitkDataNode.h:63
src
MITK
Modules
QtWidgets
include
QmitkAbstractDataStorageModel.h
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