QmitkInitialValuesDelegate Class Reference

Toolkit includes. More...

#include <QmitkInitialValuesDelegate.h>

Inheritance diagram for QmitkInitialValuesDelegate:

Collaboration diagram for QmitkInitialValuesDelegate:

Public Member Functions
	QmitkInitialValuesDelegate (QObject *parent=nullptr)
	Constructs a QmitkInitialValuesDelegate. More...
QWidget *	createEditor (QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override
	Creates an appropriate editor widget based on the value type. More...
void	setEditorData (QWidget *editor, const QModelIndex &index) const override
	Populates the editor with data from the model. More...
void	setModelData (QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override
	Transfers data from the editor back to the model. More...
void	setDataStorage (mitk::DataStorage *storage)
	Sets the data storage used to populate the image selection combo box. More...
void	setNodePredicate (mitk::NodePredicateBase *predicate)
	Sets the node predicate used to filter images in the data storage. More...

Protected Member Functions
int	valueType (const QModelIndex &index) const
	Determines the value type for the given index. More...

Protected Attributes
mitk::DataStorage::Pointer	m_Storage
	Data storage used as source for potential initial value images. More...
mitk::NodePredicateBase::Pointer	m_Predicate
	Predicate used to filter for valid initial value images in the data storage. More...

Detailed Description

Toolkit includes.

Item delegate for rendering and editing the initial value source of a model parameter.

This delegate supports two value types determined by the Qt::UserRole data of the index:

• Type 0 (scalar): The edit role data is a double, and a standard spin box editor is used.
• Type 1 (image): The edit role data is a void pointer to a mitk::DataNode. A QmitkDataStorageComboBox is used to select an image node from the configured data storage.

See also

QmitkInitialValuesModel

QmitkInitialValuesTypeDelegate

QmitkInitialValuesManagerWidget

Definition at line 39 of file QmitkInitialValuesDelegate.h.

Constructor & Destructor Documentation

QmitkInitialValuesDelegate()

QmitkInitialValuesDelegate::QmitkInitialValuesDelegate

(

QObject *

parent = nullptr

)

Constructs a QmitkInitialValuesDelegate.

Parameters

[in]

parent

Optional parent QObject.

Member Function Documentation

createEditor()

QWidget* QmitkInitialValuesDelegate::createEditor ( QWidget *  parent, const QStyleOptionViewItem &  option, const QModelIndex &  index  ) const

override

Creates an appropriate editor widget based on the value type.

For scalar types (type 0), delegates to QStyledItemDelegate::createEditor(). For image types (type 1), creates a QmitkDataStorageComboBox filtered by the configured node predicate.

Parameters

[in]	parent	The parent widget for the editor.
[in]	option	Style options for the item.
[in]	index	The model index of the item being edited.

Returns

The newly created editor widget.

setDataStorage()

void QmitkInitialValuesDelegate::setDataStorage

(

mitk::DataStorage *

storage

)

Sets the data storage used to populate the image selection combo box.

Parameters

[in]

storage

Pointer to the DataStorage instance.

setEditorData()

void QmitkInitialValuesDelegate::setEditorData ( QWidget *  editor, const QModelIndex &  index  ) const

override

Populates the editor with data from the model.

For scalar types, delegates to QStyledItemDelegate. For image types, finds and selects the corresponding data node in the combo box.

Parameters

[in]	editor	The editor widget to populate.
[in]	index	The model index of the item.

setModelData()

void QmitkInitialValuesDelegate::setModelData ( QWidget *  editor, QAbstractItemModel *  model, const QModelIndex &  index  ) const

override

Transfers data from the editor back to the model.

For image types, stores the selected data node pointer. For scalar types, delegates to QStyledItemDelegate.

Parameters

[in]	editor	The editor widget containing the new value.
[in,out]	model	The abstract item model to update.
[in]	index	The model index of the item.

setNodePredicate()

void QmitkInitialValuesDelegate::setNodePredicate

(

mitk::NodePredicateBase *

predicate

)

Sets the node predicate used to filter images in the data storage.

Parameters

[in]

predicate

Pointer to the predicate for filtering valid initial value images.

valueType()

int QmitkInitialValuesDelegate::valueType ( const QModelIndex &  index ) const

protected

Determines the value type for the given index.

Parameters

[in]

index

The model index to query (uses Qt::UserRole data).

Returns

0 for scalar type, 1 for image type.

Member Data Documentation

m_Predicate

mitk::NodePredicateBase::Pointer QmitkInitialValuesDelegate::m_Predicate

protected

Predicate used to filter for valid initial value images in the data storage.

Definition at line 112 of file QmitkInitialValuesDelegate.h.

m_Storage

mitk::DataStorage::Pointer QmitkInitialValuesDelegate::m_Storage

protected

Data storage used as source for potential initial value images.

Definition at line 110 of file QmitkInitialValuesDelegate.h.

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

• QmitkInitialValuesDelegate.h