info.gridworld.gui
Class ImageDisplay

java.lang.Object
  info.gridworld.gui.AbstractDisplay
      info.gridworld.gui.ImageDisplay

All Implemented Interfaces:

Display

public class ImageDisplay
extends AbstractDisplay

An ImageDisplay displays an object as a tinted image from an image file whose name matches the class name.
This code is not tested on the AP CS A and AB exams. It contains GUI implementation details that are not intended to be understood by AP CS students.

Constructor Summary

ImageDisplay(java.lang.Class cl)
Constructs an object that knows how to display an image.

Method Summary

void	draw(java.lang.Object obj, java.awt.Component comp, java.awt.Graphics2D g2) Draws a unit-length object facing North.

Methods inherited from class info.gridworld.gui.AbstractDisplay

draw, getProperty

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageDisplay

public ImageDisplay(java.lang.Class cl)
             throws java.io.IOException

Constructs an object that knows how to display an image. Looks for the named file first in the jar file, then in the current directory.

Parameters:

cl - name of class from which to construct a search string.

Throws:

java.io.IOException

Method Detail

draw

public void draw(java.lang.Object obj,
                 java.awt.Component comp,
                 java.awt.Graphics2D g2)

Draws a unit-length object facing North. This implementation draws an object by tinting, scaling, and rotating the image in the image file.

Specified by:

draw in class AbstractDisplay

Parameters:

obj - object we want to draw

comp - the component we're drawing on

g2 - drawing surface