EDelegateForeignKey Class Reference

A delegate to display and edit foreign keys from SQL tables. More...

#include <edelegateforeignkey.h>

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Public Member Functions
	EDelegateForeignKey (QString table, QString matchColumn, QString resultColumn, QWidget *parent=0)
	EDelegateForeignKey (QString table, QString matchColumn, QString resultColumn, QString(*translator)(const QString), QWidget *parent=0)
	Constructor to supply an translator callback. More...
void	setTranslator (QString(*translator)(const QString))
void	reloadForeignKeys ()
void	paint (QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
QWidget *	createEditor (QWidget *parent, const QStyleOptionViewItem &, const QModelIndex &) const
void	setEditorData (QWidget *editor, const QModelIndex &index) const
void	setModelData (QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const

Private Slots
void	commitAndCloseEditor ()
void	doCloseEditor ()
void	updateCompleter ()

Private Member Functions
void	init (QString table, QString matchColumn, QString resultColumn)

Private Attributes
QMap< QString, unsigned int >	mapOutIn
QString	resTable
QString	matchCol
QString	resCol
QSqlQueryModel *	resultModel
int	maxComboItems
int	maxCompleteItems
bool	useComboBox
bool	useCompleter
bool	useExtendedCompleter
QTimer *	timer
QString(*	translator )(const QString)

Detailed Description

A delegate to display and edit foreign keys from SQL tables.

If there are more than maxComboItems, it switches to QLineEdit with autocompletion if there are more than maxCompleteItems, it loads the completer after 3 inserted characters to reduce load.

To translate the mapped function, set the translator callback to an apropriate function with setTranslator() or the related constructor.

Todo:

last one is not useable right now

use ESqlDatabase if it is available

The completer model does not support translations yet

Constructor & Destructor Documentation

EDelegateForeignKey() [1/2]

EDelegateForeignKey::EDelegateForeignKey	(	QString	table,
		QString	matchColumn,
		QString	resultColumn,
		QWidget *	parent = 0
	)

Parameters

table	the table where the foreignkey points to
matchColumn	the column which is the same in showed table and foreignkey table (at table table)
resultColumn	the column at the foreignkey table which holds the content to be displayed

See also

EDelegateForeignKey(QString, QString, QString, QString (*)(const QString), QWidget*)

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EDelegateForeignKey() [2/2]

EDelegateForeignKey::EDelegateForeignKey	(	QString	table,
		QString	matchColumn,
		QString	resultColumn,
		QString(*)(const QString)	translator,
		QWidget *	parent = 0
	)

Constructor to supply an translator callback.

See also

EDelegateForeignKey(QString, QString, QString, QWidget*)

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Member Function Documentation

commitAndCloseEditor

void EDelegateForeignKey::commitAndCloseEditor ( )

privateslot

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createEditor()

QWidget * EDelegateForeignKey::createEditor	(	QWidget *	parent,
		const QStyleOptionViewItem &	,
		const QModelIndex &
	)		const

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doCloseEditor

void EDelegateForeignKey::doCloseEditor ( )

privateslot

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init()

void EDelegateForeignKey::init ( QString  table, QString  matchColumn, QString  resultColumn  )

private

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paint()

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

Todo:

must be really improved to use QCompleter with only part of the table (useExtendedCompleter)

reloadForeignKeys()

void EDelegateForeignKey::reloadForeignKeys

(

)

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setEditorData()

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

setModelData()

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

setTranslator()

void EDelegateForeignKey::setTranslator

(

QString(*)(const QString)

translator

)

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updateCompleter

void EDelegateForeignKey::updateCompleter ( )

privateslot

Todo:

must be really improved

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Member Data Documentation

mapOutIn

QMap<QString, unsigned int> EDelegateForeignKey::mapOutIn

private

the QString, int order is needed, because the entries should be ordered after the string's

matchCol

QString EDelegateForeignKey::matchCol

private

maxComboItems

int EDelegateForeignKey::maxComboItems

private

maxCompleteItems

int EDelegateForeignKey::maxCompleteItems

private

resCol

QString EDelegateForeignKey::resCol

private

resTable

QString EDelegateForeignKey::resTable

private

resultModel

QSqlQueryModel* EDelegateForeignKey::resultModel

private

timer

QTimer* EDelegateForeignKey::timer

private

translator

QString(* EDelegateForeignKey::translator) (const QString)

private

Function callback to translate QString into QString.

useComboBox

bool EDelegateForeignKey::useComboBox

private

useCompleter

bool EDelegateForeignKey::useCompleter

private

useExtendedCompleter

bool EDelegateForeignKey::useExtendedCompleter

private

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

• /home/abuild/rpmbuild/BUILD/libengsas-0.6.0/src/lib/core/edelegateforeignkey.h
• /home/abuild/rpmbuild/BUILD/libengsas-0.6.0/src/lib/core/edelegateforeignkey.cpp