Home · All Classes · Main Classes · Grouped Classes · Modules · Functions

Q3EditorFactory Class Reference
^{[Qt3Support module]}

The Q3EditorFactory class is used to create editor widgets for QVariant data types. More...

#include <Q3EditorFactory>

This class is part of the Qt 3 support library. It is provided to keep old source code working. We strongly advise against using it in new code. See Porting to Qt 4 for more information.

Note to Qt Desktop Light Edition users: This class is only available in the Qt Desktop Edition.

Inherits QObject.

Inherited by Q3SqlEditorFactory.

• List of all members, including inherited members

Public Functions

• Q3EditorFactory ( QObject * parent = 0 )
• ~Q3EditorFactory ()
• virtual QWidget * createEditor ( QWidget * parent, const QVariant & v )

• 28 public functions inherited from QObject

Static Public Members

• Q3EditorFactory * defaultFactory ()
• void installDefaultFactory ( Q3EditorFactory * factory )

• 4 static public members inherited from QObject

Additional Inherited Members

• 1 property inherited from QObject
• 1 public slot inherited from QObject
• 1 signal inherited from QObject
• 7 protected functions inherited from QObject

Detailed Description

The Q3EditorFactory class is used to create editor widgets for QVariant data types.

Each editor factory provides the createEditor() function which given a QVariant will create and return a QWidget that can edit that QVariant. For example if you have a QVariant::String type, a QLineEdit would be the default editor returned, whereas a QVariant::Int's default editor would be a QSpinBox.

If you want to create different editors for fields with the same data type, subclass Q3EditorFactory and reimplement the createEditor() function.

Member Function Documentation

Q3EditorFactory::Q3EditorFactory ( QObject * parent = 0 )

Constructs an editor factory with parent parent.

Q3EditorFactory::~Q3EditorFactory ()

Destroys the object and frees any allocated resources.

QWidget * Q3EditorFactory::createEditor ( QWidget * parent, const QVariant & v )   [virtual]

Creates and returns the appropriate editor for the QVariant v. If the QVariant is invalid, 0 is returned. The parent is passed to the appropriate editor's constructor.

Q3EditorFactory * Q3EditorFactory::defaultFactory ()   [static]

Returns an instance of a default editor factory.

void Q3EditorFactory::installDefaultFactory ( Q3EditorFactory * factory )   [static]

Replaces the default editor factory with factory. Q3EditorFactory takes ownership of factory, and destroys it when it is no longer needed.