Qt list model providing access to points in a mitk::PointSet. More...

#include <QmitkPointListModel.h>

Inheritance diagram for QmitkPointListModel:

Collaboration diagram for QmitkPointListModel:

[legend]

Public Slots
void	MoveSelectedPointUp ()

void	MoveSelectedPointDown ()

void	RemoveSelectedPoint ()

Signals
void	SignalUpdateSelection ()

Public Member Functions
	QmitkPointListModel (mitk::DataNode pointSetNode=nullptr, int t=0, QObject parent=nullptr)
	Construct the model. More...

	~QmitkPointListModel () override
	Destructor. Removes observers from the point set. More...

Qt::ItemFlags	flags (const QModelIndex &index) const override
	Return item flags (selectable and enabled). More...

int	rowCount (const QModelIndex &parent=QModelIndex()) const override
	Return the number of points in the current time step. More...

QVariant	data (const QModelIndex &index, int role) const override
	Return the display data for a point (ID and coordinates). More...

QVariant	headerData (int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const override
	Return header data. More...

void	SetPointSetNode (mitk::DataNode *pointSetNode)
	Set the data node containing the point set to model. More...

mitk::PointSet *	GetPointSet () const
	Get the modeled point set. More...

mitk::DataNode *	GetPointSetNode () const
	Get the data node containing the point set. More...

void	SetTimeStep (int t)
	Set the time step to display. More...

int	GetTimeStep () const
	Get the current time step. More...

void	OnPointSetChanged (const itk::EventObject &e)
	ITK observer callback for point set modification events. More...

void	OnPointSetDeleted (const itk::EventObject &e)
	ITK observer callback for point set deletion events. More...

bool	GetPointForModelIndex (const QModelIndex &index, mitk::PointSet::PointType &p, mitk::PointSet::PointIdentifier &id) const
	get point and point ID that correspond to a given QModelIndex More...

bool	GetModelIndexForPointID (mitk::PointSet::PointIdentifier id, QModelIndex &index) const
	returns a QModelIndex for a given point ID More...

Protected Member Functions
void	ObserveNewPointSet (mitk::DataNode *pointSetNode)
	internally observe different point set More...

mitk::PointSet *	CheckForPointSetInNode (mitk::DataNode *node) const

Protected Attributes
mitk::DataNode *	m_PointSetNode

unsigned int	m_PointSetModifiedObserverTag

unsigned int	m_PointSetDeletedObserverTag

int	m_TimeStep

Detailed Description

Qt list model providing access to points in a mitk::PointSet.

Wraps a mitk::PointSet (referenced via a mitk::DataNode) as a QAbstractListModel. Each row represents a point with its ID and coordinates. Observes the point set for modifications and deletions, resetting the model accordingly. Provides methods to move and remove the currently selected point.

Note: The mitk::PointSet uses a map container where point IDs are not necessarily contiguous. This model translates between row indices and point IDs.

See also: QmitkPointListView, QmitkPointListWidget

Definition at line 37 of file QmitkPointListModel.h.

Constructor & Destructor Documentation

◆ QmitkPointListModel()

QmitkPointListModel::QmitkPointListModel	(	mitk::DataNode *	pointSetNode = `nullptr`,
		int	t = `0`,
		QObject *	parent = `nullptr`
	)

Construct the model.

Parameters

[in]	pointSetNode	Data node containing the mitk::PointSet. May be nullptr.
[in]	t	The time step to use.
[in]	parent	The parent QObject.

◆ ~QmitkPointListModel()

QmitkPointListModel::~QmitkPointListModel ( )

override

Destructor. Removes observers from the point set.

Member Function Documentation

◆ CheckForPointSetInNode()

mitk::PointSet* QmitkPointListModel::CheckForPointSetInNode ( mitk::DataNode * node ) const

protected

◆ data()

QVariant QmitkPointListModel::data	(	const QModelIndex &	index,
		int	role
	)		const

override

Return the display data for a point (ID and coordinates).

Parameters

[in]	index	The model index.
[in]	role	The data role (only Qt::DisplayRole is supported).

Returns: The point string in format "ID: (x, y, z)".

◆ flags()

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

override

Return item flags (selectable and enabled).

Parameters

[in] index The model index (unused).

Returns: Qt::ItemIsSelectable | Qt::ItemIsEnabled.

◆ GetModelIndexForPointID()

bool QmitkPointListModel::GetModelIndexForPointID	(	mitk::PointSet::PointIdentifier	id,
		QModelIndex &	index
	)		const

returns a QModelIndex for a given point ID

Documentation

The mitk::PointSet uses a map to store points in an ID<-->Point relation. The IDs are not necessarily continuously numbered, therefore, we can not directly use the point ID as a QModelIndex. This method returns a QModelIndex for a given point ID in the outgoing parameter index.

Parameters

[in]	id	The point ID for which the QModelIndex will be created
[out]	index	if a point with the ID id was found, index will contain a corresponding QModelIndex for that point

Returns: returns true, if a valid QModelIndex was created, false otherwise

◆ GetPointForModelIndex()

bool QmitkPointListModel::GetPointForModelIndex	(	const QModelIndex &	index,
		mitk::PointSet::PointType &	p,
		mitk::PointSet::PointIdentifier &	id
	)		const

get point and point ID that correspond to a given QModelIndex

The mitk::PointSet uses a map to store points in an ID<-->Point relation. The IDs are not necessarily continuously numbered, therefore, we can not directly use the QModelIndex as point ID. This method returns the point and the corresponding point id for a given QModelIndex. The point and the point ID are returned in the outgoing parameters p and id. If a valid point and ID were found, the method returns true, otherwise it returns false

Parameters

[in]	index	the index for which a point is requested. The row() part of the index is used to find a corresponding point
[out]	p	If a valid point is found, it will be stored in the p parameter
[out]	id	If a valid point is found, the corresponding ID will be stored in id

Returns: Returns true, if a valid point was found, false otherwise

◆ GetPointSet()

mitk::PointSet* QmitkPointListModel::GetPointSet ( ) const

Get the modeled point set.

Returns: Pointer to the mitk::PointSet, or nullptr.

◆ GetPointSetNode()

mitk::DataNode* QmitkPointListModel::GetPointSetNode ( ) const

Get the data node containing the point set.

Returns: Pointer to the mitk::DataNode, or nullptr.

◆ GetTimeStep()

int QmitkPointListModel::GetTimeStep ( ) const

Get the current time step.

Returns: The time step index.

◆ headerData()

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

override

Return header data.

Parameters

[in]	section	The section index.
[in]	orientation	The header orientation.
[in]	role	The data role.

Returns: The header label.

◆ MoveSelectedPointDown

void QmitkPointListModel::MoveSelectedPointDown ( )

slot

◆ MoveSelectedPointUp

void QmitkPointListModel::MoveSelectedPointUp ( )

slot

◆ ObserveNewPointSet()

void QmitkPointListModel::ObserveNewPointSet ( mitk::DataNode * pointSetNode )

protected

internally observe different point set

◆ OnPointSetChanged()

void QmitkPointListModel::OnPointSetChanged ( const itk::EventObject & e )

ITK observer callback for point set modification events.

Parameters

[in] e The ITK event object.

◆ OnPointSetDeleted()

void QmitkPointListModel::OnPointSetDeleted ( const itk::EventObject & e )

ITK observer callback for point set deletion events.

Parameters

[in] e The ITK event object.

◆ RemoveSelectedPoint

void QmitkPointListModel::RemoveSelectedPoint ( )

slot

◆ rowCount()

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

override

Return the number of points in the current time step.

Parameters

[in] parent The parent index (unused for list models).

Returns: The number of points.

◆ SetPointSetNode()

void QmitkPointListModel::SetPointSetNode ( mitk::DataNode * pointSetNode )

Set the data node containing the point set to model.

Parameters

[in] pointSetNode The data node. May be nullptr to clear.

◆ SetTimeStep()

void QmitkPointListModel::SetTimeStep ( int t )

Set the time step to display.

Parameters

[in] t The time step index.

◆ SignalUpdateSelection

void QmitkPointListModel::SignalUpdateSelection ( )

signal

emitted, when views should update their selection status (because mouse interactions in render windows can change the selection status of points)

Member Data Documentation

◆ m_PointSetDeletedObserverTag

unsigned int QmitkPointListModel::m_PointSetDeletedObserverTag

protected

Definition at line 185 of file QmitkPointListModel.h.

◆ m_PointSetModifiedObserverTag

unsigned int QmitkPointListModel::m_PointSetModifiedObserverTag

protected

Definition at line 184 of file QmitkPointListModel.h.

◆ m_PointSetNode

mitk::DataNode* QmitkPointListModel::m_PointSetNode

protected

Definition at line 183 of file QmitkPointListModel.h.

◆ m_TimeStep

int QmitkPointListModel::m_TimeStep

protected

Definition at line 186 of file QmitkPointListModel.h.

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

QmitkPointListModel.h

Public Slots

Signals

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ QmitkPointListModel()

◆ ~QmitkPointListModel()

Member Function Documentation

◆ CheckForPointSetInNode()

◆ data()

◆ flags()

◆ GetModelIndexForPointID()

◆ GetPointForModelIndex()

◆ GetPointSet()

◆ GetPointSetNode()

◆ GetTimeStep()

◆ headerData()

◆ MoveSelectedPointDown

◆ MoveSelectedPointUp

◆ ObserveNewPointSet()

◆ OnPointSetChanged()

◆ OnPointSetDeleted()

◆ RemoveSelectedPoint

◆ rowCount()

◆ SetPointSetNode()

◆ SetTimeStep()

◆ SignalUpdateSelection

Member Data Documentation

◆ m_PointSetDeletedObserverTag

◆ m_PointSetModifiedObserverTag

◆ m_PointSetNode

◆ m_TimeStep