Bug 77193 Properties File Editor doesn't show QuickDiff hovers
I200410260800 The Properties File Editor doesn't show QuickDiff hovers.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/propertiesfileeditor/PropertiesFileSourceViewerConfiguration.java
/**
	 * Determines whether the preference change encoded by the given event
	 * changes the behavior of one of its contained components.
	 * 
	 * @param event the event to be investigated
	 * @return <code>true</code> if event causes a behavioral change
	 */
	public boolean affectsTextPresentation(PropertyChangeEvent event) {
		return  fPropertyKeyScanner.affectsBehavior(event)
			|| fCommentScanner.affectsBehavior(event)
			|| fPropertyValueScanner.affectsBehavior(event);
	}
	
	/**
	 * Adapts the behavior of the contained components to the change
	 * encoded in the given event.
	 * 
	 * @param event the event to which to adapt
	 * @see PropertiesFileSourceViewerConfiguration#PropertiesFileSourceViewerConfiguration(IColorManager, IPreferenceStore, ITextEditor, String)
	 */
	public void handlePropertyChangeEvent(PropertyChangeEvent event) {
		if (fPropertyKeyScanner.affectsBehavior(event))
			fPropertyKeyScanner.adaptToPreferenceChange(event);
		if (fCommentScanner.affectsBehavior(event))
			fCommentScanner.adaptToPreferenceChange(event);
		if (fPropertyValueScanner.affectsBehavior(event))
			fPropertyValueScanner.adaptToPreferenceChange(event);
	}
}