becker.robots.icons
Class ShapeIcon

java.lang.Object
  becker.robots.icons.Icon
      becker.robots.icons.ShapeIcon

All Implemented Interfaces:

IColor

Direct Known Subclasses:

CircleIcon, RobotIcon, WallIcon

public class ShapeIcon
extends Icon
implements IColor

A ShapeIcon provides an easy means to make an icon of a particular shape and color.

The easiest example is

  private Icon icon = new ShapeIcon(
               new Rectangle2D.Double(0.0, 0.0, 1.0, 1.0)), Color.blue);

You'll need to import the following:

import becker.robots.icons.*;
  import java.awt.geom.Rectangle2D;
  import java.awt.Color;

A RobotIcon is defined as

  public class RobotIcon extends ShapeIcon
  {
     public RobotIcon(Color color)
     {  this(color, 0.8);
     }

     public RobotIcon(Color color, double relativeSize)
     {  super(RobotIcon.shape, color, relativeSize);
     }

     private static GeneralPath shape;

     static
     {  shape = new GeneralPath();
        shape.moveTo(0.5F, 0.0F);
        shape.lineTo(0.0F, 1.0F);
        shape.lineTo(0.5F, 0.7F);
        shape.lineTo(1.0F, 1.0F);
        shape.closePath();

     }
  }

The static block initializes the shape instance variable before it is used in the constructor. The same shape is used for each RobotIcon instance.

Author:

Byron Weber Becker

Field Summary

Fields inherited from class becker.robots.icons.Icon

transparent

Constructor Summary

ShapeIcon(Shape aShape, Color aColor)
Construct a new icon with the given shape and color.

ShapeIcon(Shape aShape, Color aColor, double relativeSize)
Construct a new icon with the given shape and color.

Method Summary

protected void

renderImage(Graphics2D g2, int width, int height) Override either this method or Icon.paintIcon(java.awt.Graphics) to specify how the icon looks.

Methods inherited from class becker.robots.icons.Icon

applyTransforms, getColor, getImage, getLabel, getRotation, getSize, getTransparency, hasChanged, markChanged, paintIcon, setColor, setLabel, setSize, setTransparency

Methods inherited from class java.lang.Object

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

Methods inherited from interface becker.robots.IColor

getColor, getTransparency, setColor, setTransparency

Constructor Detail

ShapeIcon

public ShapeIcon(Shape aShape,
                 Color aColor)

Construct a new icon with the given shape and color.

Parameters:

aShape - The shape of the icon: a rectangle, ellipse, or even a GeneralPath.

aColor - The color the shape should have.

ShapeIcon

public ShapeIcon(Shape aShape,
                 Color aColor,
                 double relativeSize)

Construct a new icon with the given shape and color.

Parameters:

aShape - The shape of the icon: a rectangle, ellipse, or even a GeneralPath.

aColor - The color the shape should have.

relativeSize - A value between 0.0 (very small) and 1.0 (large).

Method Detail

renderImage

protected void renderImage(Graphics2D g2,
                           int width,
                           int height)

Description copied from class: Icon

Override either this method or Icon.paintIcon(java.awt.Graphics) to specify how the icon looks. For this method, the upper left corner of the icon has coordinates (0,0). The width and height are both 1.0.

Overrides:

renderImage in class Icon

Parameters:

g2 - the graphics context where the icon should be drawn.

width - the number of pixels wide the image will be

height - the number of pixels high the image will be