rubberband
Class Rubberband

java.lang.Object
  |
  +--rubberband.Rubberband

Direct Known Subclasses:

RubberbandRectangle, RubberbandRectangleX

public abstract class Rubberband

extends java.lang.Object

A abstract base class for rubberbands.

Rubberbands do their rubberbanding inside of a Component, which must be specified at construction time.

Subclasses are responsible for implementing void drawLast(Graphics g) and void drawNext(Graphics g). drawLast() draws the appropriate geometric shape at the last rubberband location, while drawNext() draws the appropriate geometric shape at the next rubberband location. All of the underlying support for rubberbanding is taken care of here, including handling XOR mode setting; extensions of Rubberband need not concern themselves with anything but drawing the last and next geometric shapes.

A note from Steve Verrill: This class was written by David Geary. See his book Graphic Java, Mastering the AWT.

See Also:

RubberbandLine, RubberbandRectangle, RubberbandEllipse, gjt.test.RubberbandTest

Field Summary

protected java.awt.Point	anchor
protected java.awt.Point	end
protected java.awt.Point	last
protected java.awt.Point	stretched

Constructor Summary

Rubberband(java.awt.Component component)

Method Summary

void	anchor(java.awt.Point p)
java.awt.Rectangle	bounds()
abstract void	drawLast(java.awt.Graphics g)
abstract void	drawNext(java.awt.Graphics g)
void	end(java.awt.Point p)
java.awt.Point	getAnchor()
java.awt.Point	getEnd()
java.awt.Point	getLast()
java.awt.Point	getStretched()
java.awt.Rectangle	lastBounds()
void	stretch(java.awt.Point p)

Methods inherited from class java.lang.Object

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

Field Detail

anchor

protected java.awt.Point anchor

stretched

protected java.awt.Point stretched

last

protected java.awt.Point last

end

protected java.awt.Point end

Constructor Detail

Rubberband

public Rubberband(java.awt.Component component)

Method Detail

drawLast

public abstract void drawLast(java.awt.Graphics g)

drawNext

public abstract void drawNext(java.awt.Graphics g)

getAnchor

public java.awt.Point getAnchor()

getStretched

public java.awt.Point getStretched()

getLast

public java.awt.Point getLast()

getEnd

public java.awt.Point getEnd()

anchor

public void anchor(java.awt.Point p)

stretch

public void stretch(java.awt.Point p)

end

public void end(java.awt.Point p)

bounds

public java.awt.Rectangle bounds()

lastBounds

public java.awt.Rectangle lastBounds()