y.view
Class SelectionPortPainter

java.lang.Object
  y.view.SelectionPortPainter

All Implemented Interfaces:

NodePort.Painter

public class SelectionPortPainter
extends Object
implements NodePort.Painter

A decorator for NodePort.Painter implementation that draws a special "is selected" marker.

Field Summary

static byte	STYLE_FRAMED Selection style that draws a black rectangle around the selected node port.
static byte	STYLE_SMOOTHED Selection style that draws a black and rounded rectangle around the selected node port.
static byte	STYLE_WEDGES Selection style that draws four black wedges around the selected node port.

Constructor Summary

SelectionPortPainter(NodePort.Painter painter)
Initializes a new SelectionPortPainter instance.

Method Summary

byte	getStyle() Determines the selection style to highlight selected node ports.
protected boolean	initializeLine(NodeRealizer context, NodePort port, Graphics2D g) Initializes the graphics context for the drawing of the selection marker of the specified port.
void	paint(NodePort port, Graphics2D g) Paints the specified port.
void	setStyle(byte style) Specifies the selection style to highlight selected node ports.

Methods inherited from class java.lang.Object

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

Field Detail

STYLE_WEDGES

public static final byte STYLE_WEDGES

Selection style that draws four black wedges around the selected node port.

See Also:

setStyle(byte), getStyle(), Constant Field Values

STYLE_FRAMED

public static final byte STYLE_FRAMED

Selection style that draws a black rectangle around the selected node port.

See Also:

setStyle(byte), getStyle(), Constant Field Values

STYLE_SMOOTHED

public static final byte STYLE_SMOOTHED

Selection style that draws a black and rounded rectangle around the selected node port.

See Also:

setStyle(byte), getStyle(), Constant Field Values

Constructor Detail

SelectionPortPainter

public SelectionPortPainter(NodePort.Painter painter)

Initializes a new SelectionPortPainter instance.

Parameters:

painter - the decorated painter implementation.

Method Detail

getStyle

public byte getStyle()

Determines the selection style to highlight selected node ports.

The default selection style is STYLE_WEDGES.

Returns:

one of STYLE_WEDGES, STYLE_FRAMED, and STYLE_SMOOTHED.

See Also:

setStyle(byte)

setStyle

public void setStyle(byte style)

Specifies the selection style to highlight selected node ports.

The default selection style is STYLE_WEDGES.

Throws:

IllegalArgumentException - if the specified style does not equal one of the aforementioned style constants.

Parameters:

style - on of STYLE_WEDGES, STYLE_FRAMED, and STYLE_SMOOTHED.

See Also:

getStyle()

paint

public void paint(NodePort port,
                  Graphics2D g)

Description copied from interface: NodePort.Painter

Paints the specified port.

Callback method for NodePort.paint(java.awt.Graphics2D).

Specified by:

paint in interface NodePort.Painter

Parameters:

port - the port instance to paint.

g - the graphics context to paint upon.

initializeLine

protected boolean initializeLine(NodeRealizer context,
                                 NodePort port,
                                 Graphics2D g)

Initializes the graphics context for the drawing of the selection marker of the specified port. If this method returns false no marker should be drawn. Called from paint.

Parameters:

context - the realizer whose NodePorts are painted.

port - the NodePort instance that is painted.

g - the graphics context to paint upon.

Returns:

true if the selection marker of the specified port should be drawn; false otherwise.

See Also:

paint(NodePort, java.awt.Graphics2D)