org.jhotdraw.draw
Class GridConstrainer

java.lang.Object
  org.jhotdraw.draw.GridConstrainer

All Implemented Interfaces:

Constrainer

public class GridConstrainer
extends java.lang.Object
implements Constrainer

Constrains a point such that it falls on a grid.

Constructor Summary

GridConstrainer(double width, double height)
Creates a new instance.

Method Summary

java.awt.geom.Point2D.Double	constrainPoint(java.awt.geom.Point2D.Double p) Constrains the given point.
void	draw(java.awt.Graphics2D g, DrawingView view) Draws the constrainer grid for the specified drawing view.
double	getHeight()
double	getWidth()
boolean	isVisible() Returns true if the Constrainer grid is visible.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

GridConstrainer

public GridConstrainer(double width,
                       double height)

Creates a new instance.

Parameters:

width - The width of a grid cell.

height - The height of a grid cell.

Method Detail

getWidth

public double getWidth()

getHeight

public double getHeight()

constrainPoint

public java.awt.geom.Point2D.Double constrainPoint(java.awt.geom.Point2D.Double p)

Description copied from interface: Constrainer

Constrains the given point. This method changes the point which is passed as a parameter.

Specified by:

constrainPoint in interface Constrainer

Returns:

constrained point.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

isVisible

public boolean isVisible()

Description copied from interface: Constrainer

Returns true if the Constrainer grid is visible.

Specified by:

isVisible in interface Constrainer

draw

public void draw(java.awt.Graphics2D g,
                 DrawingView view)

Description copied from interface: Constrainer

Draws the constrainer grid for the specified drawing view.

Specified by:

draw in interface Constrainer