prolog.treeview
Class DefaultNodeRenderer

java.lang.Object
  |
  +--prolog.treeview.DefaultNodeRenderer

All Implemented Interfaces:

INodeRenderer

public class DefaultNodeRenderer

extends java.lang.Object

implements INodeRenderer

this is the implementation of the default node renderer rendering any object

Field Summary

protected javax.swing.JComponent	component stores a component for calculating string width and height
protected static java.awt.Dimension	gvDefaultSize the default node size of this default node renderer ;-)

Constructor Summary

DefaultNodeRenderer()
constructor

Method Summary

java.awt.Dimension	calculateDimension(java.lang.Object obj) calculates the require size this renderer require to render the given object
void	renderNode(java.awt.Graphics2D g, java.awt.Rectangle rect, java.lang.Object obj) renders the given object into the given graphic context
void	setComponent(javax.swing.JComponent c) sets the component to render in. with this reference the node renderer is able to fetch a graphic context and to calculate the width of a string on screen.

Methods inherited from class java.lang.Object

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

Field Detail

gvDefaultSize

protected static java.awt.Dimension gvDefaultSize

the default node size of this default node renderer ;-)

component

protected javax.swing.JComponent component

stores a component for calculating string width and height

Constructor Detail

DefaultNodeRenderer

public DefaultNodeRenderer()

constructor

Method Detail

renderNode

public void renderNode(java.awt.Graphics2D g,
                       java.awt.Rectangle rect,
                       java.lang.Object obj)

renders the given object into the given graphic context

Specified by:

renderNode in interface INodeRenderer

Parameters:

g - - the graphic context to render into

rect - - the rect where to render into

obj - - the node content that should be rendered

calculateDimension

public java.awt.Dimension calculateDimension(java.lang.Object obj)

calculates the require size this renderer require to render the given object

Specified by:

calculateDimension in interface INodeRenderer

Returns:

the size of the rendered object

setComponent

public void setComponent(javax.swing.JComponent c)

sets the component to render in. with this reference the node renderer is able to fetch a graphic context and to calculate the width of a string on screen.