A flat list model that exposes DataStorage nodes matching an optional predicate. More...

#include <QmitkDataStorageDefaultListModel.h>

Inheritance diagram for QmitkDataStorageDefaultListModel:

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Collaboration diagram for QmitkDataStorageDefaultListModel:

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Public Member Functions
	QmitkDataStorageDefaultListModel (QObject *parent)
	Constructs the model. More...

void	DataStorageChanged () override
	Called when the data storage has changed. Rebuilds the model data. More...

void	NodePredicateChanged () override
	Called when the node predicate has changed. Rebuilds the model data. More...

void	NodeAdded (const mitk::DataNode *node) override
	Called when a node is added to the data storage. More...

void	NodeChanged (const mitk::DataNode *node) override
	Called when a node in the data storage has changed. More...

void	NodeRemoved (const mitk::DataNode *node) override
	Called when a node is removed from the data storage. More...

QModelIndex	index (int row, int column, const QModelIndex &parent=QModelIndex()) const override
	Returns the model index for the given row and column. More...

QModelIndex	parent (const QModelIndex &child) const override
	Returns the parent index. Always returns an invalid index (flat model). More...

int	rowCount (const QModelIndex &parent=QModelIndex()) const override
	Returns the number of rows (nodes) in the model. More...

int	columnCount (const QModelIndex &parent=QModelIndex()) const override
	Returns the number of columns. Always returns 1. More...

QVariant	data (const QModelIndex &index, int role=Qt::DisplayRole) const override
	Returns data for the given index and role. More...

QVariant	headerData (int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const override
	Returns header data for the given section and orientation. More...

Qt::ItemFlags	flags (const QModelIndex &index) const override
	Returns the item flags for the given index. More...

Public Member Functions inherited from QmitkAbstractDataStorageModel
	~QmitkAbstractDataStorageModel () override

void	SetDataStorage (mitk::DataStorage *dataStorage)
	Sets the data storage and registers node event listeners. More...

mitk::DataStorage::Pointer	GetDataStorage () const
	Returns a locked pointer to the current data storage. More...

void	SetNodePredicate (const mitk::NodePredicateBase *nodePredicate)
	Sets the node predicate and triggers a model update. More...

const mitk::NodePredicateBase *	GetNodePredicate () const
	Returns the currently set node predicate. More...

Protected Member Functions
virtual void	UpdateModelData ()

Protected Member Functions inherited from QmitkAbstractDataStorageModel
	QmitkAbstractDataStorageModel (QObject *parent=nullptr)

	QmitkAbstractDataStorageModel (mitk::DataStorage dataStorage, QObject parent=nullptr)

Protected Attributes
std::vector< mitk::DataNode::Pointer >	m_DataNodes

Protected Attributes inherited from QmitkAbstractDataStorageModel
mitk::WeakPointer< mitk::DataStorage >	m_DataStorage

mitk::NodePredicateBase::ConstPointer	m_NodePredicate

Detailed Description

A flat list model that exposes DataStorage nodes matching an optional predicate.

This model derives from QmitkAbstractDataStorageModel and presents a simple flat (non-hierarchical) list of data nodes. It reacts to node add, change, and remove events by rebuilding its internal node list. The model returns mitk::DataNode::Pointer for the QmitkDataNodeRole and the node name for Qt::DisplayRole.

See also: QmitkAbstractDataStorageModel; QmitkDataStorageListInspector

Definition at line 33 of file QmitkDataStorageDefaultListModel.h.

Constructor & Destructor Documentation

◆ QmitkDataStorageDefaultListModel()

QmitkDataStorageDefaultListModel::QmitkDataStorageDefaultListModel ( QObject * parent )

Constructs the model.

Parameters

[in] parent The parent QObject.

Member Function Documentation

◆ columnCount()

int QmitkDataStorageDefaultListModel::columnCount ( const QModelIndex & parent = QModelIndex() ) const

override

Returns the number of columns. Always returns 1.

Parameters

[in] parent The parent index.

Returns: 1.

◆ data()

QVariant QmitkDataStorageDefaultListModel::data	(	const QModelIndex &	index,
		int	role = `Qt::DisplayRole`
	)		const

override

Returns data for the given index and role.

Supports Qt::DisplayRole (node name), Qt::DecorationRole (node descriptor icon), QmitkDataNodeRole (mitk::DataNode::Pointer), and QmitkDataNodeRawPointerRole.

Parameters

[in]	index	The model index.
[in]	role	The data role.

Returns: The requested data as QVariant, or an invalid QVariant.

◆ DataStorageChanged()

void QmitkDataStorageDefaultListModel::DataStorageChanged ( )

overridevirtual

Called when the data storage has changed. Rebuilds the model data.

Implements QmitkAbstractDataStorageModel.

◆ flags()

Qt::ItemFlags QmitkDataStorageDefaultListModel::flags ( const QModelIndex & index ) const

override

Returns the item flags for the given index.

Parameters

[in] index The model index.

Returns: Item flags including Qt::ItemIsEnabled and Qt::ItemIsSelectable for valid indexes.

◆ headerData()

QVariant QmitkDataStorageDefaultListModel::headerData	(	int	section,
		Qt::Orientation	orientation,
		int	role = `Qt::DisplayRole`
	)		const

override

Returns header data for the given section and orientation.

Parameters

[in]	section	The section number.
[in]	orientation	The orientation (horizontal or vertical).
[in]	role	The data role.

Returns: The header data as QVariant.

◆ index()

QModelIndex QmitkDataStorageDefaultListModel::index	(	int	row,
		int	column,
		const QModelIndex &	parent = `QModelIndex()`
	)		const

override

Returns the model index for the given row and column.

Parameters

[in]	row	The row number.
[in]	column	The column number.
[in]	parent	The parent index (unused for flat list models).

Returns: A valid model index for valid rows and column 0, otherwise an invalid index.

◆ NodeAdded()

void QmitkDataStorageDefaultListModel::NodeAdded ( const mitk::DataNode * node )

overridevirtual

Called when a node is added to the data storage.

Parameters

[in] node The node that was added.

Implements QmitkAbstractDataStorageModel.

◆ NodeChanged()

void QmitkDataStorageDefaultListModel::NodeChanged ( const mitk::DataNode * node )

overridevirtual

Called when a node in the data storage has changed.

Parameters

[in] node The node that was changed.

Implements QmitkAbstractDataStorageModel.

◆ NodePredicateChanged()

void QmitkDataStorageDefaultListModel::NodePredicateChanged ( )

overridevirtual

Called when the node predicate has changed. Rebuilds the model data.

Implements QmitkAbstractDataStorageModel.

◆ NodeRemoved()

void QmitkDataStorageDefaultListModel::NodeRemoved ( const mitk::DataNode * node )

overridevirtual

Called when a node is removed from the data storage.

Parameters

[in] node The node that was removed.

Implements QmitkAbstractDataStorageModel.

◆ parent()

QModelIndex QmitkDataStorageDefaultListModel::parent ( const QModelIndex & child ) const

override

Returns the parent index. Always returns an invalid index (flat model).

Parameters

[in] child The child index.

Returns: An invalid QModelIndex.

◆ rowCount()

int QmitkDataStorageDefaultListModel::rowCount ( const QModelIndex & parent = QModelIndex() ) const

override

Returns the number of rows (nodes) in the model.

Parameters

[in] parent The parent index (must be invalid for top-level count).

Returns: The number of data nodes.

◆ UpdateModelData()

virtual void QmitkDataStorageDefaultListModel::UpdateModelData ( )

protectedvirtual

Reimplemented in QmitkDataStorageHistoryModel.

Member Data Documentation

◆ m_DataNodes

std::vector<mitk::DataNode::Pointer> QmitkDataStorageDefaultListModel::m_DataNodes

protected

Definition at line 131 of file QmitkDataStorageDefaultListModel.h.

The documentation for this class was generated from the following file:

QmitkDataStorageDefaultListModel.h

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ QmitkDataStorageDefaultListModel()

Member Function Documentation

◆ columnCount()

◆ data()

◆ DataStorageChanged()

◆ flags()

◆ headerData()

◆ index()

◆ NodeAdded()

◆ NodeChanged()

◆ NodePredicateChanged()

◆ NodeRemoved()

◆ parent()

◆ rowCount()

◆ UpdateModelData()

Member Data Documentation

◆ m_DataNodes