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Class java.beans.PropertyEditorSupport

java.lang.Object
   |
   +----java.beans.PropertyEditorSupport

public class PropertyEditorSupport

extends Object

implements PropertyEditor

PropertyEditorSupport()

Constructor for use by derived PropertyEditor classes.

PropertyEditorSupport(Object)

Constructor for use when a PropertyEditor is delegating to us.

addPropertyChangeListener(PropertyChangeListener)

Register a listener for the PropertyChange event.

firePropertyChange()

Report that we have been modified to any interested listeners.

getAsText()

getCustomEditor()

A PropertyEditor may chose to make available a full custom Component that edits its property value.

getJavaInitializationString()

This method is intended for use when generating Java code to set the value of the property.

getTags()

If the property value must be one of a set of known tagged values, then this method should return an array of the tag values.

getValue()

isPaintable()

paintValue(Graphics, Rectangle)

Paint a representation of the value into a given area of screen real estate.

removePropertyChangeListener(PropertyChangeListener)

Remove a listener for the PropertyChange event.

setAsText(String)

Set the property value by parsing a given String.

setValue(Object)

Set (or change) the object that is to be edited.

supportsCustomEditor()

    method PropertyEditorSupport() Inheritable 

Constructor for use by derived PropertyEditor classes.

    method PropertyEditorSupport(source=Object) Inheritable 

Constructor for use when a PropertyEditor is delegating to us.

Parameters:

source - The source to use for any events we fire.

    method setValue(value=Object)  public     

Set (or change) the object that is to be edited.

Parameters:

value - The new target object to be edited. Note that this object should not be modified by the PropertyEditor, rather the PropertyEditor should create a new object to hold any modified value.

    method getValue() returns Object public     

Returns:

The value of the property.

    method isPaintable() returns boolean public     

Returns:

True if the class will honor the paintValue method.

    method paintValue(gfx=Graphics, -
                      box=Rectangle)  public     

Paint a representation of the value into a given area of screen real estate. Note that the propertyEditor is responsible for doing its own clipping so that it fits into the given rectangle.

If the PropertyEditor doesn't honor paint requests (see isPaintable) this method should be a silent noop.

Parameters:

gfx - Graphics object to paint into.

box - Rectangle within graphics object into which we should paint.

    method getJavaInitializationString() returns String public     

This method is intended for use when generating Java code to set the value of the property. It should return a fragment of Java code that can be used to initialize a variable with the current property value.

Example results are "2", "new Color(127,127,34)", "Color.orange", etc.

Returns:

A fragment of Java code representing an initializer for the current value.

    method getAsText() returns String public     

Returns:

The property value as a string suitable for presentation to a human to edit.

Returns "null" is the value can't be expressed as a string.

If a non-null value is returned, then the PropertyEditor should be prepared to parse that string back in setAsText().

    method setAsText(text=String)  public     Signals IllegalArgumentException

Set the property value by parsing a given String. May raise java.lang.IllegalArgumentException if either the String is badly formatted or if this kind of property can't be expressed as text.

Parameters:

text - The string to be parsed.

    method getTags() returns String[] public     

If the property value must be one of a set of known tagged values, then this method should return an array of the tag values. This can be used to represent (for example) enum values. If a PropertyEditor supports tags, then it should support the use of setAsText with a tag value as a way of setting the value.

Returns:

The tag values for this property. May be null if this property cannot be represented as a tagged value.

    method getCustomEditor() returns Component public     

A PropertyEditor may chose to make available a full custom Component that edits its property value. It is the responsibility of the PropertyEditor to hook itself up to its editor Component itself and to report property value changes by firing a PropertyChange event.

The higher-level code that calls getCustomEditor may either embed the Component in some larger property sheet, or it may put it in its own individual dialog, or ...

Returns:

A java.awt.Component that will allow a human to directly edit the current property value. May be null if this is not supported.

    method supportsCustomEditor() returns boolean public     

Returns:

True if the propertyEditor can provide a custom editor.

    method addPropertyChangeListener(listener=PropertyChangeListener)  public    protect 

Register a listener for the PropertyChange event. The class will fire a PropertyChange value whenever the value is updated.

Parameters:

listener - An object to be invoked when a PropertyChange event is fired.

    method removePropertyChangeListener(listener=PropertyChangeListener)  public    protect 

Remove a listener for the PropertyChange event.

Parameters:

listener - The PropertyChange listener to be removed.

    method firePropertyChange()  public     

Report that we have been modified to any interested listeners.

Parameters:

source - The PropertyEditor that caused the event.

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