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
}
	/**
	 * Return whether or not the image has been set.
	 * 
	 * @return boolean. <code>true</code>  if the image has been set to something new.
	 * 
	 * @since 3.1
	 */
	public boolean hasNewImage() {
		
		if (startImage == null)
			return newImage != null;
		
		if(newImage == null)
			return false;
		return !(startImage.equals(newImage));
	}
	/**
	 * Return whether or not the text has been set.
	 * 
	 * @return boolean. <code>true</code>  if the text has been set to something new.
	 */
	public boolean hasNewText() {
		
		if (startText == null)
			return newText != null;
		
		if(newText == null)
			return false;
		return !(startText.equals(newText));