Bug 179674 Support time dimension in model
When define time dimension in model, the "itTime" property will be set. However this is not enough. We also need to know to what precision the time value should be evaluated, say, year, month, day, etc. Model needs to be enhanced to support such requirement.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/elements/DesignChoiceConstants.java
public static final String WHITE_SPACE_NORMAL = "normal"; 
	public static final String WHITE_SPACE_PRE = "pre"; 
	public static final String WHITE_SPACE_NOWRAP = "nowrap"; 
	
	public static final String CHOICE_DISPLAY = "display"; 
	public static final String DISPLAY_BLOCK = "block"; 
	public static final String DISPLAY_INLINE = "inline"; 
	public static final String DISPLAY_NONE = "none"; 
	
	public static final String CHOICE_PAGE_BREAK_AFTER = "pageBreakAfter"; 
	public static final String PAGE_BREAK_AFTER_AUTO = "auto"; 
	public static final String PAGE_BREAK_AFTER_ALWAYS = "always"; 
	public static final String PAGE_BREAK_AFTER_AVOID = "avoid"; 
	public static final String PAGE_BREAK_AFTER_ALWAYS_EXCLUDING_LAST = "always-excluding-last"; 
	
	public static final String CHOICE_PAGE_BREAK_BEFORE = "pageBreakBefore"; 
	public static final String PAGE_BREAK_BEFORE_AUTO = "auto"; 
	public static final String PAGE_BREAK_BEFORE_ALWAYS = "always"; 
	public static final String PAGE_BREAK_BEFORE_AVOID = "avoid"; 
	public static final String PAGE_BREAK_BEFORE_ALWAYS_EXCLUDING_FIRST = "always-excluding-first"; 
	
	public static final String CHOICE_PAGE_BREAK_INSIDE = "pageBreakInside"; 
	public static final String PAGE_BREAK_INSIDE_AVOID = "avoid"; 
	public static final String PAGE_BREAK_INSIDE_AUTO = "auto"; 
	
	public static final String CHOICE_MARGIN = "margin"; 
	public static final String MARGIN_AUTO = "auto"; 
	
	public static final String CHOICE_TEXT_UNDERLINE = "textUnderline"; 
	public static final String TEXT_UNDERLINE_NONE = "none";