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Java Source Code / Java Documentation » Ajax » ItsNat » org.itsnat.comp

Source Cross Reference Class Diagram Java Document (Java Doc)

org.itsnat.comp .ItsNatLabel

All known Subclasses:   org.itsnat.impl.comp .ItsNatLabelImpl,
ItsNatLabel
public interface ItsNatLabel extends ItsNatElementComponent(Code)
Is the base interface of label components.
A label component contains a single object value, this value is rendered as markup using a special object, the renderer, and may be optionally edited "in place" using a user defined editor.

Any change to the internal value is notified with a "value" property change event and may be vetoed (see ItsNatLabel.setValue(Object) . The new value, if accepted, is rendered as markup.

This component family is the "componentized" version of org.itsnat.core.domutil.ElementLabel and follows a similar philosophy.

author:
   Jose Maria Arranz Santamaria

Method Summary
public String getEditorActivatorEvent()
     Returns the event type used to activate the label edition process by the user. the event type used to activate the edition.
public ItsNatLabelEditor getItsNatLabelEditor()
     Returns the current label editor.
public ItsNatLabelRenderer getItsNatLabelRenderer()
     Returns the current component renderer.
public ItsNatLabelUI getItsNatLabelUI()
     Returns the user interface manager of this component.
public Object getValue()
     Returns the current value.
public boolean isEditing()
     Informs whether the label value is being edited.
public void setEditorActivatorEvent(String eventType)
     Sets the event type used to activate the label edition process by the user.
public void setItsNatLabelEditor(ItsNatLabelEditor editor)
     Sets the label editor.
This component automatically adds a listener calling javax.swing.CellEditor.addCellEditorListener(javax.swing.event.CellEditorListener) this way the component is informed when the editor stops or cancels editing.

The edition process starts programmatically by calling ItsNatLabel.startEditing() or by user action (usually double clicking the label or the action/event type specified by ItsNatLabel.getEditorActivatorEvent() ).
public void setItsNatLabelRenderer(ItsNatLabelRenderer renderer)
     Sets the component renderer.
public void setValue(Object value)
     Sets the value.
public void startEditing()
     Used to start programmatically the label edition process "in place".

Method Detail
getEditorActivatorEvent
public String getEditorActivatorEvent()(Code)
Returns the event type used to activate the label edition process by the user. the event type used to activate the edition. By default is "dblclick".
See Also:   ItsNatLabel.setEditorActivatorEvent(String)

getItsNatLabelEditor
public ItsNatLabelEditor getItsNatLabelEditor()(Code)
Returns the current label editor. This object is used to edit in place the current label value. the current editor. By default uses the default editor calling (ItsNatComponentManager.createDefaultItsNatLabelEditor(ItsNatComponent)) with a null parameter.
See Also:   ItsNatLabel.setItsNatLabelEditor(ItsNatLabelEditor)

getItsNatLabelRenderer
public ItsNatLabelRenderer getItsNatLabelRenderer()(Code)
Returns the current component renderer. This renderer converts the label value to markup. the current renderer. By default uses the default renderer (ItsNatComponentManager.createDefaultItsNatLabelRenderer)
See Also:   ItsNatLabel.setItsNatLabelRenderer(ItsNatLabelRenderer)

getItsNatLabelUI
public ItsNatLabelUI getItsNatLabelUI()(Code)
Returns the user interface manager of this component. the user interface manager.

getValue
public Object getValue()(Code)
Returns the current value. the current value. The default value is null.

isEditing
public boolean isEditing()(Code)
Informs whether the label value is being edited. true if the label is being edited.
See Also:   ItsNatLabel.startEditing()

setEditorActivatorEvent
public void setEditorActivatorEvent(String eventType)(Code)
Sets the event type used to activate the label edition process by the user.
Parameters:
  eventType - the event type used to activate the edition.
See Also:   ItsNatLabel.getEditorActivatorEvent()
See Also:

setItsNatLabelEditor
public void setItsNatLabelEditor(ItsNatLabelEditor editor)(Code)
Sets the label editor.
This component automatically adds a listener calling javax.swing.CellEditor.addCellEditorListener(javax.swing.event.CellEditorListener) this way the component is informed when the editor stops or cancels editing.

The edition process starts programmatically by calling ItsNatLabel.startEditing() or by user action (usually double clicking the label or the action/event type specified by ItsNatLabel.getEditorActivatorEvent() ). Then the label markup (below the parent element) is removed and the method ItsNatLabelEditor.getLabelEditorComponent(ItsNatLabelObjectElement) is called, this method usually places the editor component inside the label. Current label implementations do nothing with the editor component returned and may be null.

When the editor stops the component calls CellEditor.getCellEditorValue() to obtain the new value and sets this value to the label (calling ItsNatLabel.setValue(Object) ) and the editor is removed and the original label markup is restored modified by the renderer with the new value. If the editor is cancelled all is the same but no markup change is made.

Parameters:
  editor - the new editor. May be null (edition disabled).
See Also:   ItsNatLabel.getItsNatLabelEditor()
See Also:

setItsNatLabelRenderer
public void setItsNatLabelRenderer(ItsNatLabelRenderer renderer)(Code)
Sets the component renderer.
Parameters:
  renderer - the new renderer.
See Also:   ItsNatLabel.getItsNatLabelRenderer()
See Also:

setValue
public void setValue(Object value) throws PropertyVetoException(Code)
Sets the value. The new value will be rendered automatically to markup.
This new value is "voted" before is set firing a java.beans.PropertyChangeEvent event, with name "value", sent to the listeners registered with ItsNatComponent.addVetoableChangeListener(VetoableChangeListener) if some listener does a "veto" (throws a java.beans.PropertyVetoException) the new value is not set. If finally set the PropertyChangeEvent event is sent to the listeners registered with ItsNatComponent.addPropertyChangeListener(java.beans.PropertyChangeListener) or ItsNatComponent.addPropertyChangeListener(Stringjava.beans.PropertyChangeListener) with property name "value".

Parameters:
  value - value to display (and may be edit).
throws:
  PropertyVetoException - if the new value was vetoed.

startEditing
public void startEditing()(Code)
Used to start programmatically the label edition process "in place".
See Also:   ItsNatLabel.isEditing()

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