org.jhotdraw.draw.decoration

Class AbstractLineDecoration

java.lang.Object

org.jhotdraw.draw.decoration.AbstractLineDecoration

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, LineDecoration

Direct Known Subclasses:

ArrowTip, GeneralPathTip, PerpendicularBar

public abstract class AbstractLineDecoration
extends java.lang.Object
implements LineDecoration

This abstract class can be extended to implement a LineDecoration.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AbstractLineDecoration(boolean isFilled, boolean isStroked, boolean isSolid) Constructs an arrow tip with the given angle and radius.

Method Summary

Modifier and Type	Method and Description
void	draw(java.awt.Graphics2D g, Figure f, java.awt.geom.Point2D.Double p1, java.awt.geom.Point2D.Double p2) Draws the arrow tip in the direction specified by the given two Points.
double	getDecorationRadius(Figure f) Returns the radius of the decorator.
protected abstract java.awt.geom.Path2D.Double	getDecoratorPath(Figure f) Hook method to calculate the path of the decorator.
protected abstract double	getDecoratorPathRadius(Figure f) Hook method to calculate the radius of the decorator path.
java.awt.geom.Rectangle2D.Double	getDrawingArea(Figure f, java.awt.geom.Point2D.Double p1, java.awt.geom.Point2D.Double p2) Returns the drawing area of the decorator.
protected boolean	isFilled()
protected boolean	isSolid()
protected boolean	isStroked()
protected void	setFilled(boolean b)
protected void	setSolid(boolean b)
protected void	setStroked(boolean b)

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractLineDecoration

public AbstractLineDecoration(boolean isFilled,
                              boolean isStroked,
                              boolean isSolid)

Constructs an arrow tip with the given angle and radius.

Method Detail

isFilled

protected boolean isFilled()

isStroked

protected boolean isStroked()

isSolid

protected boolean isSolid()

draw

public void draw(java.awt.Graphics2D g,
                 Figure f,
                 java.awt.geom.Point2D.Double p1,
                 java.awt.geom.Point2D.Double p2)

Draws the arrow tip in the direction specified by the given two Points. (template method)

Specified by:

draw in interface LineDecoration

getDrawingArea

public java.awt.geom.Rectangle2D.Double getDrawingArea(Figure f,
                                                       java.awt.geom.Point2D.Double p1,
                                                       java.awt.geom.Point2D.Double p2)

Returns the drawing area of the decorator.

Specified by:

getDrawingArea in interface LineDecoration

getDecorationRadius

public double getDecorationRadius(Figure f)

Description copied from interface: LineDecoration

Returns the radius of the decorator. This is used to crop the end of the line, to prevent it from being drawn over the decorator.

Specified by:

getDecorationRadius in interface LineDecoration

setFilled

protected void setFilled(boolean b)

setStroked

protected void setStroked(boolean b)

setSolid

protected void setSolid(boolean b)

getDecoratorPath

protected abstract java.awt.geom.Path2D.Double getDecoratorPath(Figure f)

Hook method to calculate the path of the decorator.

getDecoratorPathRadius

protected abstract double getDecoratorPathRadius(Figure f)

Hook method to calculate the radius of the decorator path.