org.w3c.css.properties.css3.CssLineHeightPolicy Maven / Gradle / Ivy
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//
// $Id: CssLineHeightPolicy.java,v 1.4 2010-01-05 13:49:53 ylafon Exp $
// From Philippe Le Hegaret ([email protected])
//
// (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.css.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.CssValue;
/**
*
* 5.5.26 'clear'
*
*
* Value: none | left | right | both
* Initial: none
* Applies to: all elements
* Inherited: no
* Percentage values: N/A
*
This property specifies if an element allows floating elements on its
* sides. More specifically, the value of this property lists the sides where
* floating elements are not accepted. With 'clear' set to 'left', an element
* will be moved below any floating element on the left side. With 'clear' set
* to 'none', floating elements are allowed on all sides. Example:
*
* H1 { clear: left }
*
*
* @version $Revision: 1.4 $ */
public class CssLineHeightPolicy extends CssProperty {
CssValue value;
private CssIdent normal = new CssIdent("normal");
private CssIdent stack = new CssIdent("stack");
private CssIdent enforce = new CssIdent("enforce");
private CssIdent snap = new CssIdent("snap");
/**
* Create a new CssLineHeightPolicy
*/
public CssLineHeightPolicy() {
// nothing to do
}
/**
* Create a new CssLineHeightPolicy
*
* @param expression The expression for this property
* @exception InvalidParamException Values are incorrect
*/
public CssLineHeightPolicy(ApplContext ac, CssExpression expression,
boolean check) throws InvalidParamException {
CssValue val = expression.getValue();
setByUser();
if (val.equals(normal)) {
value = val;
expression.next();
} else if (val.equals(stack)) {
value = val;
expression.next();
} else if (val.equals(enforce)) {
value = val;
expression.next();
} else if (val.equals(snap)) {
value = val;
expression.next();
}
else {
throw new InvalidParamException("value", expression.getValue(),
getPropertyName(), ac);
}
}
public CssLineHeightPolicy(ApplContext ac, CssExpression expression)
throws InvalidParamException {
this(ac, expression, false);
}
/**
* Returns the value of this property
*/
public Object get() {
return value;
}
/**
* Returns the name of this property
*/
public String getPropertyName() {
return "line-height-policy";
}
/**
* Returns true if this property is "softly" inherited
* e.g. his value equals inherit
*/
public boolean isSoftlyInherited() {
return value == inherit;
}
/**
* Returns a string representation of the object.
*/
public String toString() {
return value.toString();
}
/**
* Add this property to the CssStyle.
*
* @param style The CssStyle
*/
public void addToStyle(ApplContext ac, CssStyle style) {
Css3Style style0 = (Css3Style) style;
if (style0.cssLineHeightPolicy != null)
style0.addRedefinitionWarning(ac, this);
style0.cssLineHeightPolicy = 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).getLineHeightPolicy();
} else {
return ((Css3Style) style).cssLineHeightPolicy;
}
}
/**
* Compares two properties for equality.
*
* @param value The other property.
*/
public boolean equals(CssProperty property) {
return (property instanceof CssLineHeightPolicy &&
value == ((CssLineHeightPolicy) property).value);
}
/**
* Is the value of this property is a default value.
* It is used by all macro for the function print
*/
public boolean isDefault() {
return value == normal;
}
}