org.das2.event

Class PointSlopeDragRenderer

java.lang.Object

org.das2.event.AbstractDragRenderer

org.das2.event.LabelDragRenderer

org.das2.event.PointSlopeDragRenderer

All Implemented Interfaces:

DragRenderer

public class PointSlopeDragRenderer
extends LabelDragRenderer

Shows the slope from the click point to the drag point.

Field Summary

Fields inherited from interface org.das2.event.DragRenderer

ghostColor

Constructor Summary

Constructors

Constructor and Description
PointSlopeDragRenderer(DasCanvasComponent parent, DasAxis xaxis, DasAxis yaxis) Creates a new instance of PointSlopeDragRenderer

Method Summary

Modifier and Type	Method and Description
java.awt.Rectangle[]	renderDrag(java.awt.Graphics g1, 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.LabelDragRenderer

addDirtyBounds, addDirtyBounds, clear, getDirtyBounds, getMouseDragEvent, isPointSelection, isTooltip, isUpdatingDragSelection, resetDirtyBounds, setLabel, setTooltip

Methods inherited from class org.das2.event.AbstractDragRenderer

getParent, setParent

Methods inherited from class java.lang.Object

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

Constructor Detail

PointSlopeDragRenderer

public PointSlopeDragRenderer(DasCanvasComponent parent,
                              DasAxis xaxis,
                              DasAxis yaxis)

Creates a new instance of PointSlopeDragRenderer

Parameters:

parent -

xaxis -

yaxis -

Method Detail

renderDrag

public java.awt.Rectangle[] renderDrag(java.awt.Graphics g1,
                                       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

Overrides:

renderDrag in class LabelDragRenderer

Parameters:

g1 - the graphics context for rendering

p1 - the click point

p2 - the current mouse position during drag and release.

Returns: