|  | Home

# QtSizeFPropertyManager Class Reference

The QtSizeFPropertyManager provides and manages QSizeF properties. More...

     #include <QtSizeFPropertyManager>

Inherits QtAbstractPropertyManager.

- List of all members, including inherited members

### Public Functions

- QtSizeFPropertyManager ( QObject * parent = 0 )
- ~QtSizeFPropertyManager ()
- int decimals ( const QtProperty * property ) const
- QSizeF maximum ( const QtProperty * property ) const
- QSizeF minimum ( const QtProperty * property ) const
- QtDoublePropertyManager * subDoublePropertyManager () const
- QSizeF value ( const QtProperty * property ) const

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

### Public Slots

- void setDecimals ( QtProperty * property, int prec )
- void setMaximum ( QtProperty * property, const QSizeF & maxVal )
- void setMinimum ( QtProperty * property, const QSizeF & minVal )
- void setRange ( QtProperty * property, const QSizeF & minimum, const QSizeF & maximum )
- void setValue ( QtProperty * property, const QSizeF & value )

- 1 public slot inherited from QObject

### Signals

- void decimalsChanged ( QtProperty * property, int prec )
- void rangeChanged ( QtProperty * property, const QSizeF & minimum, const QSizeF & maximum )
- void valueChanged ( QtProperty * property, const QSizeF & 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 QtSizeFPropertyManager provides and manages QSizeF properties.

A size property has nested 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 size property also has a range of valid values defined by a minimum size and a maximum size. These sizes can be retrieved using the minimum() and the maximum() functions, and set using the setMinimum() and setMaximum() slots. Alternatively, the range can be defined in one go using the setRange() slot.

In addition, QtSizeFPropertyManager provides the valueChanged() signal which is emitted whenever a property created by this manager changes, and the rangeChanged() signal which is emitted whenever such a property changes its range of valid sizes.

See also QtAbstractPropertyManager, QtDoublePropertyManager, and QtSizePropertyManager.

## Member Function Documentation

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

Creates a manager with the given parent.

### QtSizeFPropertyManager::~QtSizeFPropertyManager ()

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

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

Returns the given property's precision, in decimals.

See also setDecimals().

### void QtSizeFPropertyManager::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().

### QSizeF QtSizeFPropertyManager::maximum ( const QtProperty * property ) const

Returns the given property's maximum size value.

See also setMaximum(), minimum(), and setRange().

### QSizeF QtSizeFPropertyManager::minimum ( const QtProperty * property ) const

Returns the given property's minimum size value.

See also setMinimum(), maximum(), and setRange().

### void QtSizeFPropertyManager::rangeChanged ( QtProperty * property, const QSizeF & minimum, const QSizeF & maximum ) `[signal]`

This signal is emitted whenever a property created by this manager changes its range of valid sizes, passing a pointer to the property and the new minimum and maximum sizes.

See also setRange().

### void QtSizeFPropertyManager::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 QtSizeFPropertyManager::setMaximum ( QtProperty * property, const QSizeF & maxVal ) `[slot]`

Sets the maximum size value for the given property to maxVal.

When setting the maximum size value, the minimum and current values are adjusted if necessary (ensuring that the size range remains valid and that the current value is within the range).

See also maximum(), setRange(), and rangeChanged().

### void QtSizeFPropertyManager::setMinimum ( QtProperty * property, const QSizeF & minVal ) `[slot]`

Sets the minimum size value for the given property to minVal.

When setting the minimum size value, the maximum and current values are adjusted if necessary (ensuring that the size range remains valid and that the current value is within the range).

See also minimum(), setRange(), and rangeChanged().

### void QtSizeFPropertyManager::setRange ( QtProperty * property, const QSizeF & minimum, const QSizeF & maximum ) `[slot]`

Sets the range of valid values.

This is a convenience function defining the range of valid values in one go; setting the minimum and maximum values for the given property with a single function call.

When setting a new range, the current value is adjusted if necessary (ensuring that the value remains within the range).

See also setMinimum(), setMaximum(), and rangeChanged().

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

Sets the value of the given property to value.

If the specified value is not valid according to the given property's size range, the value is adjusted to the nearest valid value within the size range.

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

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

Returns the manager that creates the nested width and height subproperties.

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

See also QtAbstractPropertyBrowser::setFactoryForManager().

### QSizeF QtSizeFPropertyManager::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 size

See also setValue().

### void QtSizeFPropertyManager::valueChanged ( QtProperty * property, const QSizeF & 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().