org.das2.event

Class SimpleCrossHairRenderer

java.lang.Object

org.das2.event.AbstractDragRenderer

org.das2.event.SimpleCrossHairRenderer

All Implemented Interfaces:

Editable, DragRenderer

public class SimpleCrossHairRenderer
extends AbstractDragRenderer
implements DragRenderer, Editable

Draw a cross hair. By default, this will send off update events during the drag. If the mouse module also

Field Summary

Fields inherited from interface org.das2.event.DragRenderer

ghostColor

Constructor Summary

Constructors

Constructor and Description
SimpleCrossHairRenderer() create the SimpleCrossHairRenderer, requesting events be fired during the drag.
SimpleCrossHairRenderer(boolean dragEvents) create the SimpleCrossHairRenderer, possibly firing events.

Method Summary

Modifier and Type	Method and Description
java.awt.Rectangle[]	renderDrag(java.awt.Graphics g, java.awt.Point p1, java.awt.Point p2) draw a crosshair at the mouse position.

Methods inherited from class org.das2.event.AbstractDragRenderer

clear, getMouseDragEvent, getParent, isPointSelection, isUpdatingDragSelection, setParent

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.das2.event.DragRenderer

clear, getMouseDragEvent, isPointSelection, isUpdatingDragSelection

Constructor Detail

SimpleCrossHairRenderer

public SimpleCrossHairRenderer()

create the SimpleCrossHairRenderer, requesting events be fired during the drag.

SimpleCrossHairRenderer

public SimpleCrossHairRenderer(boolean dragEvents)

create the SimpleCrossHairRenderer, possibly firing events.

Parameters:

dragEvents - if true, will request that events be fired during the drag.

Method Detail

renderDrag

public java.awt.Rectangle[] renderDrag(java.awt.Graphics g,
                                       java.awt.Point p1,
                                       java.awt.Point p2)

draw a crosshair at the mouse position.

Specified by:

renderDrag in interface DragRenderer

Parameters:

g - the graphics context

p1 - the beginning of the drag

p2 - the current mouse position during the drag

Returns:

null