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 CHOICE_FONT_STYLE = "fontStyle"; 
	public static final String FONT_STYLE_NORMAL = "normal"; 
	public static final String FONT_STYLE_ITALIC = "italic"; 
	public static final String FONT_STYLE_OBLIQUE = "oblique"; 
	
	public static final String CHOICE_FONT_WEIGHT = "fontWeight"; 
	public static final String FONT_WEIGHT_NORMAL = "normal"; 
	public static final String FONT_WEIGHT_BOLD = "bold"; 
	public static final String FONT_WEIGHT_BOLDER = "bolder"; 
	public static final String FONT_WEIGHT_LIGHTER = "lighter"; 
	public static final String FONT_WEIGHT_100 = "100"; 
	public static final String FONT_WEIGHT_200 = "200"; 
	public static final String FONT_WEIGHT_300 = "300"; 
	public static final String FONT_WEIGHT_400 = "400"; 
	public static final String FONT_WEIGHT_500 = "500"; 
	public static final String FONT_WEIGHT_600 = "600"; 
	public static final String FONT_WEIGHT_700 = "700"; 
	public static final String FONT_WEIGHT_800 = "800"; 
	public static final String FONT_WEIGHT_900 = "900"; 
	
	public static final String CHOICE_FONT_SIZE = "fontSize"; 
	public static final String FONT_SIZE_XX_SMALL = "xx-small"; 
	public static final String FONT_SIZE_X_SMALL = "x-small"; 
	public static final String FONT_SIZE_SMALL = "small"; 
	public static final String FONT_SIZE_MEDIUM = "medium"; 
	public static final String FONT_SIZE_LARGE = "large"; 
	public static final String FONT_SIZE_X_LARGE = "x-large"; 
	public static final String FONT_SIZE_XX_LARGE = "xx-large"; 
	public static final String FONT_SIZE_LARGER = "larger";