Package org.pentaho.reporting.engine.classic.core.metadata.propertyeditors

Class EnumPropertyEditor

java.lang.Object

org.pentaho.reporting.engine.classic.core.metadata.propertyeditors.EnumPropertyEditor

All Implemented Interfaces:

PropertyEditor

Direct Known Subclasses:

CrosstabDetailModePropertyEditor, CrosstabHeaderModePropertyEditor, CrosstabNormalizationModePropertyEditor, CrosstabSummaryPositionPropertyEditor, SurveyScaleShapeTypePropertyEditor, TableLayoutPropertyEditor

public abstract class EnumPropertyEditor
extends Object
implements PropertyEditor

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	EnumPropertyEditor(Class<? extends Enum> baseClass, boolean allowNull)

Method Summary

Modifier and Type	Method	Description
void	addPropertyChangeListener(PropertyChangeListener listener)	Register a listener for the PropertyChange event.
String	getAsText()
Component	getCustomEditor()	A PropertyEditor may choose to make available a full custom Component that edits its property value.
String	getJavaInitializationString()	Returns a fragment of Java code that can be used to set a property to match the editors current state.
String[]	getTags()
Object	getValue()
boolean	isPaintable()	Determines whether this property editor is paintable.
void	paintValue(Graphics gfx, Rectangle box)	Paint a representation of the value into a given area of screen real estate.
void	removePropertyChangeListener(PropertyChangeListener listener)	Remove a listener for the PropertyChange event.
void	setAsText(String text)
void	setValue(Object value)
boolean	supportsCustomEditor()	Determines whether this property editor supports a custom editor.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EnumPropertyEditor

protected EnumPropertyEditor(Class<? extends Enum> baseClass,
                             boolean allowNull)

Method Detail

getValue

public Object getValue()

Specified by:

getValue in interface PropertyEditor

setValue

public void setValue(Object value)

Specified by:

setValue in interface PropertyEditor

getAsText

public String getAsText()

Specified by:

getAsText in interface PropertyEditor

setAsText

public void setAsText(String text)
               throws IllegalArgumentException

Specified by:

setAsText in interface PropertyEditor

Throws:

IllegalArgumentException

getTags

public String[] getTags()

Specified by:

getTags in interface PropertyEditor

isPaintable

public boolean isPaintable()

Determines whether this property editor is paintable.

Specified by:

isPaintable in interface PropertyEditor

Returns:

True if the class will honor the paintValue method.

paintValue

public void paintValue(Graphics gfx,
                       Rectangle box)

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.

The given Graphics object will have the default font, color, etc of the parent container. The PropertyEditor may change graphics attributes such as font and color and doesn't need to restore the old values.

Specified by:

paintValue in interface PropertyEditor

Parameters:

gfx - Graphics object to paint into.

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

getJavaInitializationString

public String getJavaInitializationString()

Returns a fragment of Java code that can be used to set a property to match the editors current state. This method is intended for use when generating Java code to reflect changes made through the property editor.

The code fragment should be context free and must be a legal Java expression as specified by the JLS.

Specifically, if the expression represents a computation then all classes and static members should be fully qualified. This rule applies to constructors, static methods and non primitive arguments.

Caution should be used when evaluating the expression as it may throw exceptions. In particular, code generators must ensure that generated code will compile in the presence of an expression that can throw checked exceptions.

Example results are:

• Primitive expresssion: 2
• Class constructor: new java.awt.Color(127,127,34)
• Static field: java.awt.Color.orange
• Static method: javax.swing.Box.createRigidArea(new java.awt.Dimension(0, 5))

Specified by:

getJavaInitializationString in interface PropertyEditor

Returns:

a fragment of Java code representing an initializer for the current value. It should not contain a semi-colon (';') to end the expression.

getCustomEditor

public Component getCustomEditor()

A PropertyEditor may choose 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 ...

Specified by:

getCustomEditor in interface PropertyEditor

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.

supportsCustomEditor

public boolean supportsCustomEditor()

Determines whether this property editor supports a custom editor.

Specified by:

supportsCustomEditor in interface PropertyEditor

Returns:

True if the propertyEditor can provide a custom editor.

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)

Register a listener for the PropertyChange event. When a PropertyEditor changes its value it should fire a PropertyChange event on all registered PropertyChangeListeners, specifying the null value for the property name and itself as the source.

Specified by:

addPropertyChangeListener in interface PropertyEditor

Parameters:

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

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener listener)

Remove a listener for the PropertyChange event.

Specified by:

removePropertyChangeListener in interface PropertyEditor

Parameters:

listener - The PropertyChange listener to be removed.