dealii::ParameterGui::ParameterDelegate Class Reference

The ParameterDelegate class implements special delegates for the QTreeWidget class used in the parameterGUI. More...

#include <parameter_delegate.h>

Inheritance diagram for dealii::ParameterGui::ParameterDelegate:

Collaboration diagram for dealii::ParameterGui::ParameterDelegate:

Public Member Functions
	ParameterDelegate (const int value_column, QObject *parent=0)
	Constructor, value_column specifies the column of the parameter tree this delegate will be used on. More...
QWidget *	createEditor (QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const
	This function creates the appropriate editor for the parameter based on the index. More...
QSize	sizeHint (const QStyleOptionViewItem &option, const QModelIndex &index) const
	Reimplemented from QItemDelegate. More...
void	paint (QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
	Reimplemented from QItemDelegate. More...
void	setEditorData (QWidget *editor, const QModelIndex &index) const
	Reimplemented from QItemDelegate. More...
void	setModelData (QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const
	Reimplemented from QItemDelegate. More...

Private Slots
void	commit_and_close_editor ()
	Reimplemented from QItemDelegate. More...

Private Attributes
int	value_column
	The column this delegate will be used on. More...
double	double_steps
	For parameters of type double a spin box will be shown as editor. More...
unsigned int	int_steps
	For parameters of type integer a spin box will be shown as editor. More...
unsigned int	double_decimals
	For parameters of type double a spin box will be shown as editor. More...

Detailed Description

The ParameterDelegate class implements special delegates for the QTreeWidget class used in the parameterGUI.

The QTreeWidget class provides some different standard delegates for editing parameters shown in the tree structure. The ParameterDelegate class provides special editors for the different types of parameters defined in the ParameterHandler class. For all parameter types based on strings as "Anything", "MultipleSelection" "Map" and "List" a simple line editor will be shown up. In the case of integer and double type parameters the editor is a spin box and for "Selection" type parameters a combo box will be shown up. For parameters of type "FileName" and "DirectoryName" the delegate shows a BrowseLineEdit editor. The column of the tree structure with the parameter values has to be set in the constructor.

Note

This class is used in the graphical user interface for the ParameterHandler class. It is not compiled into the deal.II libraries and can not be used by applications using deal.II.

Author

Martin Steigemann, Wolfgang Bangerth, 2010

Constructor & Destructor Documentation

dealii::ParameterGui::ParameterDelegate::ParameterDelegate	(	const int	value_column,
		QObject *	parent = 0
	)

Constructor, value_column specifies the column of the parameter tree this delegate will be used on.

Member Function Documentation

void dealii::ParameterGui::ParameterDelegate::commit_and_close_editor ( )

privateslot

Reimplemented from QItemDelegate.

QWidget* dealii::ParameterGui::ParameterDelegate::createEditor	(	QWidget *	parent,
		const QStyleOptionViewItem &	option,
		const QModelIndex &	index
	)		const

This function creates the appropriate editor for the parameter based on the index.

void dealii::ParameterGui::ParameterDelegate::paint	(	QPainter *	painter,
		const QStyleOptionViewItem &	option,
		const QModelIndex &	index
	)		const

Reimplemented from QItemDelegate.

void dealii::ParameterGui::ParameterDelegate::setEditorData	(	QWidget *	editor,
		const QModelIndex &	index
	)		const

Reimplemented from QItemDelegate.

void dealii::ParameterGui::ParameterDelegate::setModelData	(	QWidget *	editor,
		QAbstractItemModel *	model,
		const QModelIndex &	index
	)		const

Reimplemented from QItemDelegate.

QSize dealii::ParameterGui::ParameterDelegate::sizeHint	(	const QStyleOptionViewItem &	option,
		const QModelIndex &	index
	)		const

Reimplemented from QItemDelegate.

Member Data Documentation

unsigned int dealii::ParameterGui::ParameterDelegate::double_decimals

private

For parameters of type double a spin box will be shown as editor.

The spin box will show parameters with a precision of double_decimals.

double dealii::ParameterGui::ParameterDelegate::double_steps

private

For parameters of type double a spin box will be shown as editor.

Any click on the spin box will change the value about double_steps.

unsigned int dealii::ParameterGui::ParameterDelegate::int_steps

private

For parameters of type integer a spin box will be shown as editor.

Any click on the spin box will change the value about int_steps.

int dealii::ParameterGui::ParameterDelegate::value_column

private

The column this delegate will be used on.

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

• parameter_delegate.h