QmitkMapPropertyDelegate Class Reference

Item delegate for rendering and editing MatchPoint algorithm meta-properties in a QTableView. More...

#include <QmitkMapPropertyDelegate.h>

Public Member Functions
	QmitkMapPropertyDelegate (QObject *parent=nullptr)
	Constructs the property delegate. More...
void	paint (QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override
	Paints the delegate for the given model index. More...
QWidget *	createEditor (QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override
	Creates an appropriate editor widget for the property at the given index. More...
void	setEditorData (QWidget *editor, const QModelIndex &index) const override
	Populates the editor widget with data from the model. More...
void	setModelData (QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override
	Commits data from the editor widget back to the model. More...
void	updateEditorGeometry (QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const override
	Updates the editor geometry to fit the item's bounding rectangle. More...

Protected Member Functions
bool	eventFilter (QObject *o, QEvent *e) override

Detailed Description

Item delegate for rendering and editing MatchPoint algorithm meta-properties in a QTableView.

This delegate creates appropriate editor widgets (QSpinBox, QDoubleSpinBox, QComboBox, or default QStyledItemDelegate editors) based on the Qt type of the property value. It handles data transfer between the editors and the underlying model (typically a QmitkMAPAlgorithmModel) and commits changes on relevant user interaction events (key release, mouse release, focus, etc.).

Supported property types and their editors:

• int: QSpinBox
• float: QDoubleSpinBox (5 decimal places)
• QStringList: QComboBox (non-editable)
• Other types: default QStyledItemDelegate editor

See also

QmitkMAPAlgorithmModel, QmitkAlgorithmSettingsConfig

Definition at line 39 of file QmitkMapPropertyDelegate.h.

Constructor & Destructor Documentation

QmitkMapPropertyDelegate()

QmitkMapPropertyDelegate::QmitkMapPropertyDelegate

(

QObject *

parent = nullptr

)

Constructs the property delegate.

Parameters

[in]

parent

Optional parent QObject.

Member Function Documentation

createEditor()

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

override

Creates an appropriate editor widget for the property at the given index.

The editor type is determined by the Qt meta type of the data at the index: QSpinBox for int, QDoubleSpinBox for float, QComboBox for QStringList, or the default delegate editor for other types.

Parameters

[in]	parent	The parent widget for the editor.
[in]	option	Style options for the item.
[in]	index	The model index identifying the property to edit.

Returns

The created editor widget, or a QLabel if the data is not editable.

eventFilter()

bool QmitkMapPropertyDelegate::eventFilter ( QObject *  o, QEvent *  e  )

overrideprotected

paint()

void QmitkMapPropertyDelegate::paint ( QPainter *  painter, const QStyleOptionViewItem &  option, const QModelIndex &  index  ) const

override

Paints the delegate for the given model index.

Parameters

[in]	painter	The painter to use.
[in]	option	Style options for the item.
[in]	index	The model index to paint.

setEditorData()

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

override

Populates the editor widget with data from the model.

Parameters

[in]	editor	The editor widget to populate.
[in]	index	The model index providing the data.

setModelData()

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

override

Commits data from the editor widget back to the model.

Parameters

[in]	editor	The editor widget containing the user's input.
[in,out]	model	The model to receive the data.
[in]	index	The model index identifying the property being edited.

updateEditorGeometry()

void QmitkMapPropertyDelegate::updateEditorGeometry ( QWidget *  editor, const QStyleOptionViewItem &  option, const QModelIndex &  index  ) const

override

Updates the editor geometry to fit the item's bounding rectangle.

Parameters

[in]	editor	The editor widget to resize.
[in]	option	Style options containing the geometry.
[in]	index	The model index (unused).

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

• QmitkMapPropertyDelegate.h