org.jhotdraw.draw.event
Class SelectionComponentDisplayer

java.lang.Object
  org.jhotdraw.draw.event.SelectionComponentDisplayer

All Implemented Interfaces:

java.beans.PropertyChangeListener, java.util.EventListener, FigureSelectionListener

public class SelectionComponentDisplayer
extends java.lang.Object
implements java.beans.PropertyChangeListener, FigureSelectionListener

Calls setVisible(true/false) on components, which show attributes of the drawing editor and of its views based on the current selection.

Holds a WeakReference on the component. Automatically disposes itself if the component no longer exists.

Author:

Werner Randelshofer @version $Id: SelectionComponentDisplayer.java 647 2010-01-24 22:52:59Z rawcoder $

Field Summary

protected DrawingEditor	editor
protected boolean	isVisibleIfCreationTool
protected int	minSelectionCount
protected DrawingView	view
protected java.lang.ref.WeakReference<javax.swing.JComponent>	weakRef

Constructor Summary

SelectionComponentDisplayer(DrawingEditor editor, javax.swing.JComponent component)

Method Summary

void	dispose()
protected javax.swing.JComponent	getComponent()
void	propertyChange(java.beans.PropertyChangeEvent evt)
void	selectionChanged(FigureSelectionEvent evt)
void	setMinSelectionCount(int newValue)
void	setVisibleIfCreationTool(boolean newValue)
void	updateVisibility()

Methods inherited from class java.lang.Object

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

Field Detail

view

protected DrawingView view

editor

protected DrawingEditor editor

weakRef

protected java.lang.ref.WeakReference<javax.swing.JComponent> weakRef

minSelectionCount

protected int minSelectionCount

isVisibleIfCreationTool

protected boolean isVisibleIfCreationTool

Constructor Detail

SelectionComponentDisplayer

public SelectionComponentDisplayer(DrawingEditor editor,
                                   javax.swing.JComponent component)

Method Detail

propertyChange

public void propertyChange(java.beans.PropertyChangeEvent evt)

Specified by:

propertyChange in interface java.beans.PropertyChangeListener

selectionChanged

public void selectionChanged(FigureSelectionEvent evt)

Specified by:

selectionChanged in interface FigureSelectionListener

updateVisibility

public void updateVisibility()

getComponent

protected javax.swing.JComponent getComponent()

dispose

public void dispose()

setMinSelectionCount

public void setMinSelectionCount(int newValue)

setVisibleIfCreationTool

public void setVisibleIfCreationTool(boolean newValue)