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 newImage;
	}
	/**
	 * Set the image for the receiver.
	 * 
	 * @param image
	 *            The image to set.
	 */
	public final void setImage(Image image) {
		newImage = image;
	}
	/**
	 * Get the text for the receiver. If the new text has been set return it,
	 * otherwise return the starting text.
	 * 
	 * @return Returns the text.
	 */
	public final String getText() {
		if (newText == null)
			return startText;
		return newText;
	}
	/**
	 * Set the text for the receiver.
	 * 
	 * @param text
	 *            The label to set.
	 */
	public final void setText(String text) {
		newText = text;