Attachment 24684 Details for Bug 103691 – SWT app to demonstrate the bug

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SWT app to demonstrate the bug

ColorTest.java (text/x-java), 3.70 KB, created by David Walser

on 2005-07-13 13:55:39 EDT

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Creator: David Walser

Created: 2005-07-13 13:55:39 EDT

Size: 3.70 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, int index) {
>		byte [] bites = data.data;
>		
>		int foo[] = new int[3];
>		for (int i=index;i < index+3;i++)
>			foo[i-index] = bites[i]<0?bites[i]+256:bites[i];
>		
>		int pixel = foo[0]*65536 + foo[1]*256 + foo[2]*1;
>		if (pixel == data.transparentPixel) {
>			bites[index] = 0;
>			bites[index+1] = 0;
>			bites[index+2] = (byte) 255;
>			return;
>		}
>			
>		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*mid;
>		
>		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)
>				bites[i+index] = (byte) hi;
>			else if (orig[i] == LO)
>				bites[i+index] = (byte) lo;
>			else
>				bites[i+index] = (byte) mid;
>	}
>	
>	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();
>		
>		byte [] bites = data.data;
>		for (int i=0;i < bites.length;i+=3)
>			colorize(data, orig, midratio, i);
>		
>		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