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.

Field Summary

Fields inherited from interface org.das2.event.DragRenderer

ghostColor

Constructor Summary

Constructors

Constructor and Description
SimpleCrossHairRenderer()

Method Summary

Modifier and Type	Method and Description
java.awt.Rectangle[]	renderDrag(java.awt.Graphics g, java.awt.Point p1, java.awt.Point p2) draws the drag for mousing from p1 to p2, and returns an array of Rectangles covering the rendering.

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()

Method Detail

renderDrag

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

Description copied from interface: DragRenderer

draws the drag for mousing from p1 to p2, and returns an array of Rectangles covering the rendering. If nothing is drawn, then an array of length zero should be returned, and nulls are allowed in the array. p1 and p2, and g are in the canvas frame of reference.

Specified by:

renderDrag in interface DragRenderer

Parameters:

g - the graphics context for rendering

p1 - the click point

p2 - the current mouse position during drag and release.

Returns: