Attachment 24977 Details for Bug 103691 – More correct SWT app to demonstrate the problem

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More correct SWT app to demonstrate the problem

ColorTest.java (text/x-java), 3.93 KB, created by David Walser

on 2005-07-19 10:40:20 EDT

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Filename:

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Creator: David Walser

Created: 2005-07-19 10:40:20 EDT

Size: 3.93 KB

patch

obsolete

>import org.eclipse.swt.SWT;
>import org.eclipse.swt.graphics.*;
>import org.eclipse.swt.widgets.Display;
>import org.eclipse.swt.widgets.Label;
>import org.eclipse.swt.widgets.Shell;
>
>/*
> * Created on Jul 5, 2005
> *
> * To change the template for this generated file go to
> * Window - Preferences - Java - Code Generation - Code and Comments
> */
>
>public class ColorTest {
>
>//	public static byte byteMe(String prompt) {
>//		System.out.print(prompt + " ");
>//		return Byte.parseByte(Stdin.readLine());
>//	}
>	
>	private static byte  LO = 0;
>	private static byte MID = 1;
>	private static byte  HI  = 2;
>	
>	private static float markOrigColor (byte orig[]) {
>		int foo[] = new int[3];
>		for (int i=0;i < 3;i++)
>			foo[i] = orig[i]<0?orig[i]+256:orig[i];
>			
>		int hi, lo, mid;
>		hi = lo = mid = foo[0];
>		for (int i=1;i < 3;i++)
>			if (foo[i] > hi) {
>				mid = hi;
>				hi = foo[i];
>			}
>			else if (foo[i] < lo) {
>				mid = lo;
>				lo = foo[i];
>			}
>			else
>				mid = foo[i];
>		
>		for (int i=0;i < 3;i++)
>			if (foo[i] == hi)
>				orig[i] = HI;
>			else if (foo[i] == lo)
>				orig[i] = LO;
>			else
>				orig[i] = MID;
>		
>		return (mid-lo)/(float)(hi-lo);
>	}
>	
>	private static void colorize(ImageData data, byte orig[], float midratio) {
>		for (int y=0;y < data.height;y++)
>			for (int x=0;x < data.width;x++) {
>				int pixel = data.getPixel(x, y);
>				if (pixel == data.transparentPixel) {
>					data.setPixel(x, y, data.palette.getPixel(new RGB(0, 0, 255)));
>					continue;
>				}
>				
>				RGB pixelValue = data.palette.getRGB(data.getPixel(x, y));
>				int foo[] = new int[] {pixelValue.red, pixelValue.green, pixelValue.blue};
>				int hi, lo, mid;
>				hi = lo = mid = foo[0];
>				for (int i=1;i < 3;i++)
>					if (foo[i] > hi) {
>						mid = hi;
>						hi = foo[i];
>					}
>					else if (foo[i] < lo) {
>						mid = lo;
>						lo = foo[i];
>					}
>					else
>						mid = foo[i];
>				
>				float mul = ((hi+mid+lo) / 765.0f * 255 - hi) / hi;
>				hi += mul*hi;
>//				mid += mul*mid;
>				lo += mul*lo;
>				
>//				mul = ((hi+mid+lo) / 765.0f * hi - lo) / (hi-lo+1);
>//				mid += mul*(hi-mid);
>//				lo += mul*(hi-lo);
>				
>				int sat = 100*(255 - lo) / (hi+1);
>//				lo = mid = hi;
>				float dif = (255 - (hi-lo))/(float)255;
>				hi *= 1+dif;
>				if (hi > 255)
>					hi = 255;
>				lo -= (sat+0*dif);
>				if (lo < 0)
>					lo = 0;
>//				mid *= 1+(.5f*dif);
>//				if (mid > 255)
>//				mid = 255;
>//				mid -= sat/2;
>//				if (mid < 0)
>//				mid = 0;
>				mid = (int) (midratio*(hi-lo) + lo);
>				
>//				float mul;
>//				int sum = lo+mid+hi;
>//				if (sum < 510) {
>//				mul = Math.abs(255-sum)/255.0f;
>//				mul = 1 - (1-mul)/4;
>//				hi *= mul;
>//				lo *= mul;
>//				mid *= mul;
>//				}
>//				if (sum > 255) {
>//				mul = Math.abs(510-sum)/255.0f;
>//				mul = 1 - (1-mul)/4;
>//				hi += (255-hi)*mul;
>//				lo += (255-lo)*mul;
>//				mid += (255-mid)*mul;
>//				}
>				
>				for (int i=0;i < 3;i++)
>					if (orig[i] == HI)
>						foo[i] = hi;
>					else if (orig[i] == LO)
>						foo[i] = lo;
>					else
>						foo[i] = mid;
>				data.setPixel(x, y, data.palette.getPixel(new RGB(foo[0], foo[1], foo[2])));
>			}
>	}
>	
>	public static void printArray(byte bites[]) {
>		System.out.print("[");
>		for (int i=0;i < 2;i++)
>			System.out.print((bites[i]<0?bites[i]+256:bites[i]) + ", ");
>		System.out.println((bites[2]<0?bites[2]+256:bites[2]) + "]");
>	}
>	
>	/**
>	 * @param args
>	 */
>	public static void main(String[] args) {
>		byte orig[] = {(byte) 255, (byte) 64, (byte) 0};
>		float midratio = markOrigColor(orig);
>		
>		Display display = new Display ();
>		final Shell shell = new Shell(display);
>		
>		final Label label = new Label(shell,SWT.BORDER);
>		Image image = new Image(display, "../JavaMBS/smallfish.gif");
>		ImageData data = image.getImageData();
>		
>		colorize(data, orig, midratio);
>		
>		image = new Image(display,data);
>		
>		label.setBounds(image.getBounds());
>		shell.pack();
>		
>		label.setImage(image);
>				
>		shell.open();
>		while (!shell.isDisposed ()) {
>			if (!display.readAndDispatch ()) display.sleep ();
>		}
>		//shell.dispose();
>		display.dispose();
>	}
>
>}

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Attachments on bug 103691: 24684 | 24685 | 24977