Bug 20556 ImageAnalyzer example - bug in the set background
build 20020617 1 - Run the ImageAnalyzer found on org.eclipse.swt.examples. 2 - In the Background Combo choice a different Color 3 - the canvas on center will not changed its background color, only the scrollbar will. The bug is on examples, though this is working properly on Windows. A possible fix is remove imageCanvas.fillRectangle(...) call from the changeBackground() method. Maybe we should fix this to F4..
examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/imageanalyzer/ImageAnalyzer.java
float xscale = 1, yscale = 1; 
	int alpha = 255; 
	boolean incremental = false; 
	boolean transparent = true; 
	boolean showMask = false; 
	boolean showBackground = false; 
	boolean animate = false; 
	Thread animateThread; 
	Thread incrementalThread; 
	String lastPath; 
	String currentName; 
	String fileName; 
	ImageLoader loader; 
	ImageData[] imageDataArray; 
	int imageDataIndex; 
	ImageData imageData; 
	Image image; 
	Vector incrementalEvents; 
	long loadTime = 0; 
	
	static final int INDEX_DIGITS = 4;
	static final int ALPHA_CONSTANT = 0;
	static final int ALPHA_X = 1;
	static final int ALPHA_Y = 2;
	class TextPrompter extends Dialog {
		String message = "";
		String result = null;
		Shell dialog;
		Text text;
		public TextPrompter (Shell parent, int style) {