org.glassbox.graphview
Class AbstractImageNodePainter

java.lang.Object
  org.glassbox.graphview.AbstractImageNodePainter

All Implemented Interfaces:

NodePainter, ZoomableNodePainter

Direct Known Subclasses:

SimpleImageNodePainter, TransitionNodePainter2.TransitionImageNodePainter

public abstract class AbstractImageNodePainter
extends java.lang.Object
implements ZoomableNodePainter

An abstract implementation of a NodePainter which paints an image for each node. The size of the node ist determined by the according image. Only methods that have to be implemented are ImageIcon getImageForNode(Node) to decide which image should be painted for a node and Collection getAllImages() to receive all images used by this painter.

Constructor Summary

protected	AbstractImageNodePainter(java.awt.Dimension imagesize, java.awt.Insets border) Constructor.
protected	AbstractImageNodePainter(java.awt.Dimension imagesize, java.awt.Insets border, double zoomthreshold) Constructor.

Method Summary

protected abstract javax.swing.ImageIcon	getImageForNode(Node node) This method has to be implemented by subclasses to decide which image should be painted for a node.
void	getNodeScreenBounds(JGraphPane graphpane, Node node, java.awt.Rectangle nodebounds) Returns the outer rectangle of the node on screen.
java.lang.String	getToolTipText(JGraphPane graphpane, Node node, java.awt.Point point) Retruns the tool-tip for given point.
boolean	isInNode(JGraphPane graphpane, Node node, java.awt.Point point) Checks whether given point is inside the node.
void	paintNode(JGraphPane graphpane, java.awt.Graphics2D g, Node node) Paints the supplied node.
void	setZoomFactor(double zf) Set the zoom-factor.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractImageNodePainter

protected AbstractImageNodePainter(java.awt.Dimension imagesize,
                                   java.awt.Insets border)

Constructor. Uses 0 as threshold (images are always painted).

Parameters:

imagesize - The size of the images.

insets - The insets of this painter (empty space around the images).

AbstractImageNodePainter

protected AbstractImageNodePainter(java.awt.Dimension imagesize,
                                   java.awt.Insets border,
                                   double zoomthreshold)

Constructor.

Parameters:

imagesize - The size of the images.

insets - The insets of this painter (empty space around the images).

zoomthreshold - The minimum zoom value to paint images.

Method Detail

getImageForNode

protected abstract javax.swing.ImageIcon getImageForNode(Node node)

This method has to be implemented by subclasses to decide which image should be painted for a node.

setZoomFactor

public void setZoomFactor(double zf)

Description copied from interface: ZoomableNodePainter

Set the zoom-factor.

Specified by:

setZoomFactor in interface ZoomableNodePainter

paintNode

public void paintNode(JGraphPane graphpane,
                      java.awt.Graphics2D g,
                      Node node)

Description copied from interface: NodePainter

Paints the supplied node.

Specified by:

paintNode in interface NodePainter

Parameters:

graphpane - the graph pane

g - the graphics

node - the node to paint

isInNode

public boolean isInNode(JGraphPane graphpane,
                        Node node,
                        java.awt.Point point)

Description copied from interface: NodePainter

Checks whether given point is inside the node.

Specified by:

isInNode in interface NodePainter

Parameters:

graphpane - the graph pane

node - the node

point - the point

Returns:

true if the point is in the node

getNodeScreenBounds

public void getNodeScreenBounds(JGraphPane graphpane,
                                Node node,
                                java.awt.Rectangle nodebounds)

Description copied from interface: NodePainter

Returns the outer rectangle of the node on screen.

Specified by:

getNodeScreenBounds in interface NodePainter

Parameters:

graphpane - the graph pane

node - the node

nodebounds - the rectangle receiving the node's coordinates

getToolTipText

public java.lang.String getToolTipText(JGraphPane graphpane,
                                       Node node,
                                       java.awt.Point point)

Description copied from interface: NodePainter

Retruns the tool-tip for given point.

Specified by:

getToolTipText in interface NodePainter

Parameters:

graphpane - the graph pane

node - the node

point - the point

Returns:

the tool-tip at given point (or null)