* Value: <url> | none
* Initial: none
* Applies to: all elements
* Inherited: no
* Percentage values: N/A
*
This property sets the background image of an element. When setting a * background image, one should also set a background color that will be used * when the image is unavailable. When the image is available, it is overlaid * on top of the background color. *
* BODY { background-image: url(marble.gif) }
* P { background-image: none }
*
* @version $Revision: 1.1.1.1 $ */
public class CssBackgroundImageMob extends CssProperty {
CssValue url;
private static CssIdent none = new CssIdent("none");
/**
* Create a new CssBackgroundImageMob
*/
public CssBackgroundImageMob() {
url = none;
}
/**
* Creates a new CssBackgroundImageMob
*
* @param expression The expression for this property
* @exception InvalidParamException Values are incorrect
*/
public CssBackgroundImageMob(ApplContext ac, CssExpression expression)
throws InvalidParamException {
setByUser();
CssValue val = expression.getValue();
if (val instanceof CssURL) {
url = val;
expression.next();
} else if (val.equals(inherit)) {
url = inherit;
expression.next();
} else if (val.equals(none)) {
url = none;
expression.next();
} else {
throw new InvalidParamException("value", expression.getValue(),
getPropertyName(), ac);
}
}
/**
* Returns the value of this property
*/
public Object get() {
return url;
}
/**
* Returns true if this property is "softly" inherited
* e.g. his value equals inherit
*/
public boolean isSoftlyInherited() {
return url.equals(inherit);
}
/**
* Returns a string representation of the object.
*/
public String toString() {
return url.toString();
}
/**
* Returns the name of this property
*/
public String getPropertyName() {
return "background-image";
}
/**
* Add this property to the CssStyle.
*
* @param style The CssStyle
*/
public void addToStyle(ApplContext ac, CssStyle style) {
CssBackgroundMob cssBackground = ((Css1Style) style).cssBackgroundMob;
if (cssBackground.image != null)
style.addRedefinitionWarning(ac, this);
cssBackground.image = this;
}
/**
* Get this property in the style.
*
* @param style The style where the property is
* @param resolve if true, resolve the style to find this property
*/
public CssProperty getPropertyInStyle(CssStyle style, boolean resolve) {
if (resolve) {
return ((Css1Style) style).getBackgroundImageMob();
} else {
return ((Css1Style) style).cssBackgroundMob.image;
}
}
/**
* Compares two properties for equality.
*
* @param value The other property.
*/
public boolean equals(CssProperty property) {
return (property instanceof CssBackgroundImageMob &&
url.equals(((CssBackgroundImageMob) property).url));
}
/**
* Is the value of this property is a default value.
* It is used by all macro for the function print
*/
public boolean isDefault() {
return url == none;
}
}