|  | Home

# QtRectFPropertyManager Class Reference

The QtRectFPropertyManager provides and manages QRectF properties. More...

     #include <QtRectFPropertyManager>

Inherits QtAbstractPropertyManager.

- List of all members, including inherited members

### Public Functions

- QtRectFPropertyManager ( QObject * parent = 0 )
- ~QtRectFPropertyManager ()
- QRectF constraint ( const QtProperty * property ) const
- int decimals ( const QtProperty * property ) const
- QtDoublePropertyManager * subDoublePropertyManager () const
- QRectF value ( const QtProperty * property ) const

- 3 public functions inherited from QtAbstractPropertyManager
- 29 public functions inherited from QObject

### Public Slots

- void setConstraint ( QtProperty * property, const QRectF & constraint )
- void setDecimals ( QtProperty * property, int prec )
- void setValue ( QtProperty * property, const QRectF & value )

- 1 public slot inherited from QObject

### Signals

- void constraintChanged ( QtProperty * property, const QRectF & constraint )
- void decimalsChanged ( QtProperty * property, int prec )
- void valueChanged ( QtProperty * property, const QRectF & value )

- 4 signals inherited from QtAbstractPropertyManager
- 1 signal inherited from QObject

### Additional Inherited Members

- 1 property inherited from QObject
- 1 public type inherited from QObject
- 4 static public members inherited from QObject
- 6 protected functions inherited from QtAbstractPropertyManager
- 7 protected functions inherited from QObject
- 2 protected variables inherited from QObject

## Detailed Description

The QtRectFPropertyManager provides and manages QRectF properties.

A rectangle property has nested x, y, width and height subproperties. The top-level property's value can be retrieved using the value() function, and set using the setValue() slot.

The subproperties are created by a QtDoublePropertyManager object. This manager can be retrieved using the subDoublePropertyManager() function. In order to provide editing widgets for the subproperties in a property browser widget, this manager must be associated with an editor factory.

A rectangle property also has a constraint rectangle which can be retrieved using the constraint() function, and set using the setConstraint() slot.

In addition, QtRectFPropertyManager provides the valueChanged() signal which is emitted whenever a property created by this manager changes, and the constraintChanged() signal which is emitted whenever such a property changes its constraint rectangle.

See also QtAbstractPropertyManager, QtDoublePropertyManager, and QtRectPropertyManager.

## Member Function Documentation

### QtRectFPropertyManager::QtRectFPropertyManager ( QObject * parent = 0 )

Creates a manager with the given parent.

### QtRectFPropertyManager::~QtRectFPropertyManager ()

Destroys this manager, and all the properties it has created.

### QRectF QtRectFPropertyManager::constraint ( const QtProperty * property ) const

Returns the given property's constraining rectangle. If returned value is null QRectF it means there is no constraint applied.

See also value() and setConstraint().

### void QtRectFPropertyManager::constraintChanged ( QtProperty * property, const QRectF & constraint ) `[signal]`

This signal is emitted whenever property changes its constraint rectangle, passing a pointer to the property and the new constraint rectangle as parameters.

See also setConstraint().

### int QtRectFPropertyManager::decimals ( const QtProperty * property ) const

Returns the given property's precision, in decimals.

See also setDecimals().

### void QtRectFPropertyManager::decimalsChanged ( QtProperty * property, int prec ) `[signal]`

This signal is emitted whenever a property created by this manager changes its precision of value, passing a pointer to the property and the new prec value

See also setDecimals().

### void QtRectFPropertyManager::setConstraint ( QtProperty * property, const QRectF & constraint ) `[slot]`

Sets the given property's constraining rectangle to constraint.

When setting the constraint, the current value is adjusted if necessary (ensuring that the current rectangle value is inside the constraint). In order to reset the constraint pass a null QRectF value.

See also setValue(), constraint(), and constraintChanged().

### void QtRectFPropertyManager::setDecimals ( QtProperty * property, int prec ) `[slot]`

Sets the precision of the given property to prec.

The valid decimal range is 0-13. The default is 2.

See also decimals().

### void QtRectFPropertyManager::setValue ( QtProperty * property, const QRectF & value ) `[slot]`

Sets the value of the given property to value. Nested properties are updated automatically.

If the specified value is not inside the given property's constraining rectangle, the value is adjusted accordingly to fit within the constraint.

See also value(), setConstraint(), and valueChanged().

### QtDoublePropertyManager * QtRectFPropertyManager::subDoublePropertyManager () const

Returns the manager that creates the nested x, y, width and height subproperties.

In order to provide editing widgets for the mentioned subproperties in a property browser widget, this manager must be associated with an editor factory.

See also QtAbstractPropertyBrowser::setFactoryForManager().

### QRectF QtRectFPropertyManager::value ( const QtProperty * property ) const

Returns the given property's value.

If the given property is not managed by this manager, this function returns an invalid rectangle.

See also setValue() and constraint().

### void QtRectFPropertyManager::valueChanged ( QtProperty * property, const QRectF & value ) `[signal]`

This signal is emitted whenever a property created by this manager changes its value, passing a pointer to the property and the new value as parameters.

See also setValue().