superwaba.ext.xplat.unit
Class ImageTester

java.lang.Object
  |
  +--waba.fx.Image
        |
        +--superwaba.ext.xplat.unit.ImageTester

public class ImageTester

extends Image

This class is a helper to test if two images are equal, ie, their width and height are the satest and their pixel values are the satest. There's first a learning stage where the images are generated and the compressed strings are created. Then the test should run again to do the effective comparision at a pda.

Here's a sample:

 public class GraphicsTest extends TestCase
 {
    private Graphics g;
    private boolean learning = false; // change this to true to generate the strings

    // generated string during learning stage
    private String drawLine = "58C3AD94510EC2300CC5DEFD0FEA73C0186C0335892791DF7956DB240F6485CCB571027CCAC80C6E2E32822F1599C0DD4406F02D223DF8F190163C34A4034F0B69C08B84D4E0D5414AF04BD17C4ACDA5BA16D5997EFFA778FF4C5C9613B4E0B21A5DDA2EFCC527CFD7DE17F77EDCED87ECAF9C17397FF33C73633FE4BEC9FD957920F345E695CC3F99A7329F0DB683AA1EE9F8D157";

    private ImageTester testDrawLine()
    {
       int w = 40, h = 40;
       ImageTester it = new ImageTester(w,h);
       Graphics g = it.g;
       g.setBackColor(Color.WHITE);
       g.fillRect(0,0,w,h);
       g.drawLine(0,0,w,h);
       g.drawLine(0,0,w,0);
       g.drawLine(0,0,0,h);
       g.drawLine(w-1,0,w-1,h);
       g.drawLine(0,h-1,w,h-1);
       g.drawLine(w,0,0,h);
       g.drawLine(5,10,5,10); // a single pixel
       g.drawLine(5,15,6,16); // two pixels
       return it;
    }

    public void testRun()
    {
       g = MainWindow.getMainWindow().createGraphics();

       test(testDrawLine(), drawLine, "drawLine");
    }

    private void test(ImageTester it, String compressedResults, String title)
    {
       if (learning)
       {
          g.drawImage(it,0,0);
          Vm.debug("private String "+title+" = \""+it.toString()+"\";");
       }
       else
          assertEquals(it, compressedResults);
    }
 }
 

Field Summary

Graphics	g
java.lang.String	name
java.lang.String	title

Fields inherited from class waba.fx.Image

height, palRGBs, pixels, savingPal, transparentColor, transparentPixel, width

Constructor Summary

ImageTester(int width, int height)

ImageTester(java.lang.String name)

Method Summary

boolean	equals(java.lang.Object originalObj) This testthod is the reason for the creation of this class.
protected void	getPixelRow(byte[] fillIn, int y) used in saveTo method. fill in the y row into the fillIn array. there must be enough space for the full line be filled.
java.lang.String	toString() Converts this image to String, as a string of hexadecimal numbers.

Methods inherited from class waba.fx.Image

applyPalette, changeColors, createBmp, free, getGraphics, getHeight, getPalette, getRotatedScaledInstance, getScaledInstance, getTouchedUpInstance, getTransparentColor, getWidth, load, saveTo, scaledBy, setPalette, setTransparentColor

Methods inherited from class java.lang.Object

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

Field Detail

g

public Graphics g

title

public java.lang.String title

name

public java.lang.String name

Constructor Detail

ImageTester

public ImageTester(int width,
                   int height)

ImageTester

public ImageTester(java.lang.String name)
            throws ImageError

Method Detail

getPixelRow

protected void getPixelRow(byte[] fillIn,
                           int y)

Description copied from class: Image

used in saveTo method. fill in the y row into the fillIn array. there must be enough space for the full line be filled.

Overrides:

getPixelRow in class Image

equals

public boolean equals(java.lang.Object originalObj)

This testthod is the reason for the creation of this class. It compares two images byte per byte.

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Converts this image to String, as a string of hexadecimal numbers.

Overrides:

toString in class java.lang.Object