Bug 80793 [Viewers] null image returned from ILabelProvider.getImage should remove any image
I20041208 (-gtk) I have an ILabelProvider which in some cases returns an image in its getImage method, in some cases it does not. If I have once set an image, and then want to remove it, I return null; however, ViewerLabel.hasNewImage treats null as "no change". IMO, if a null image is returned, the viewer should remove the image from the label, alternatively, you could provide a "NullImage" and doc its usage. Currently, there is no way I can remove an image I once set without creating an empty image myself.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ViewerLabel.java
private String newText = null;
	private Image newImage = null;
	private Color background = null;
	private Color foreground = null;
	private Font font = null;
	
	private String startText;
	private Image startImage;
	/**
	 * Create a new instance of the receiver with the supplied
	 * initial text and image.
	 * @param initialText
	 * @param initialImage
	 */
	public ViewerLabel(String initialText, Image initialImage) {
		startText = initialText;
		startImage = initialImage;
	}
	/**
	 * Get the image for the receiver. If the new image has been set return it,
	 * otherwise return the starting image.
	 * 
	 * @return Returns the image.
	 */
	public final Image getImage() {
		if (newImage == null)
			return startImage;