// // $Id: CssBackgroundSize.java,v 1.2 2005/09/14 15:15:04 ylafon Exp $ // From Sijtsche Smeman (sijtsche@wisdom.nl) // // (c) COPYRIGHT MIT and INRIA, 1997. // Please first read the full copyright statement in file COPYRIGHT.html package org.w3c.css.properties.css3; import org.w3c.css.parser.CssStyle; import org.w3c.css.properties.css1.CssProperty; import org.w3c.css.util.ApplContext; import org.w3c.css.util.InvalidParamException; import org.w3c.css.values.CssExpression; import org.w3c.css.values.CssIdent; import org.w3c.css.values.CssLength; import org.w3c.css.values.CssNumber; import org.w3c.css.values.CssPercentage; import org.w3c.css.values.CssValue; /** *
* Value: [<length> | <percentage> | auto]{1.2};
* Initial: auto
* Applies to: all elements
* Inherited: yes
* Percentage values: see text
*
* In case there is a 'background-image', the background-size can be used to stretch or shrink it.
* If the property has only one value, it applies both horizontally and vertically. If there are
* two, the first one refers to the width, the second to the height of the background image.
*/
public class CssBackgroundSize extends CssProperty {
public CssValue value1 = null;
CssValue value2 = null;
CssIdent auto = new CssIdent("auto");
/**
* Create a new CssBackgroundSize
*/
public CssBackgroundSize() {
}
/**
* Create a new CssBackgroundSize
*
* @param expression The expression for this property
* @exception InvalidParamException Values are incorrect
*/
public CssBackgroundSize(ApplContext ac, CssExpression expression,
boolean check) throws InvalidParamException {
for (int i = 0; i < 2; i++) {
CssValue val = expression.getValue();
setByUser();
if ((i == 0) || (i == 1 && val != null)) {
if (val.equals(auto)) {
if (i == 0) {
value1 = auto;
} else {
value2 = auto;
}
} else if (val instanceof CssLength || val instanceof CssPercentage) {
if (i == 0) {
value1 = val;
} else {
value2 = val;
}
} else if (val instanceof CssNumber) {
if (i == 0) {
value1 = ((CssNumber) val).getLength();
} else {
value2 = ((CssNumber) val).getLength();
}
} else {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
expression.next();
}
}
}
public CssBackgroundSize(ApplContext ac, CssExpression expression)
throws InvalidParamException {
this(ac, expression, false);
}
/**
* Add this property to the CssStyle
*
* @param style The CssStyle
*/
public void addToStyle(ApplContext ac, CssStyle style) {
if (((Css3Style) style).cssBackgroundSize != null)
style.addRedefinitionWarning(ac, this);
((Css3Style) style).cssBackgroundSize = 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 ((Css3Style) style).getCssBackgroundSize();
}
else {
return ((Css3Style) style).cssBackgroundSize;
}
}
/**
* Compares two properties for equality.
*
* @param value The other property.
*/
public boolean equals(CssProperty property) {
//return (property instanceof CssBackgroundSize &&
// value.equals(((CssBackgroundSize) property).cssBackgroundSize));
return false;
}
/**
* Returns the name of this property
*/
public String getPropertyName() {
return "background-size";
}
/**
* Returns the value of this property
*/
public Object get() {
return value1;
}
/**
* Returns true if this property is "softly" inherited
*/
public boolean isSoftlyInherited() {
return false;
}
/**
* Returns a string representation of the object
*/
public String toString() {
if (value2 == null) {
return value1.toString();
} else {
return value1.toString() + " " + value2.toString();
}
}
/**
* Is the value of this property a default value
* It is used by alle macro for the function print
*/
public boolean isDefault() {
return value1 == auto;
}
}