org.w3c.css.properties.css3.CssAlignmentAdjust Maven / Gradle / Ivy
//
// $Id: CssAlignmentAdjust.java,v 1.3 2010-01-05 13:49:49 ylafon Exp $
// From Sijtsche de Jong ([email protected])
//
// (c) COPYRIGHT 1995-2000 World Wide Web Consortium (MIT, INRIA, Keio University)
// Please first read the full copyright statement at
// http://www.w3.org/Consortium/Legal/copyright-software-19980720
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.CssLength;
import org.w3c.css.values.CssPercentage;
import org.w3c.css.values.CssValue;
/**
*
* Value: auto || <percentage> || <length> || inherit
* Initial:auto
* Applies to:inline-level elements
* Inherited:yes
* Percentages:refers to the 'line-height' of the element
* Media::visual
*
* The 'alignment-adjust' property allows more precise alignment of
* elements, such as graphics, that do not have a baseline-table
* or lack the desired baseline in their baseline-table. With the
* 'alignment-adjust' property, the position of the baseline
* identified by the 'alignment-baseline' can be explicitly determined.
*/
public class CssAlignmentAdjust extends CssProperty {
CssValue alignadjust;
CssIdent auto = new CssIdent("auto");
private static String[] values = {
"auto", "baseline", "before-edge",
"text-before-edge", "middle", "central", "after-edge", "text-after-edge",
"ideographic", "alphabetic", "hanging", "mathematical", "inherit", "initial"
};
/**
* Create a new CssAlignmentAdjust
*/
public CssAlignmentAdjust() {
alignadjust = auto;
}
/**
* Create a new CssAlignmentAdjust
*
* @param expression The expression for this property
* @exception InvalidParamException Incorrect value
*/
public CssAlignmentAdjust(ApplContext ac, CssExpression expression,
boolean check) throws InvalidParamException {
if(check && expression.getCount() > 1) {
throw new InvalidParamException("unrecognize", ac);
}
setByUser();
CssValue val = expression.getValue();
if (val instanceof CssIdent) {
int i = 0;
for (; i < values.length; i++) {
if (val.toString().equals(values[i])) {
alignadjust = val;
expression.next();
break;
}
}
if (i == values.length) {
throw new InvalidParamException("value", expression.getValue(),
getPropertyName(), ac);
}
}
else if (val instanceof CssPercentage) {
alignadjust = val;
expression.next();
}
else if (val instanceof CssLength) {
alignadjust = val;
expression.next();
}
else {
throw new InvalidParamException("value", expression.getValue(),
getPropertyName(), ac);
}
}
public CssAlignmentAdjust(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).cssAlignmentAdjust != null)
style.addRedefinitionWarning(ac, this);
((Css3Style) style).cssAlignmentAdjust = 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).getAlignmentAdjust();
}
else {
return ((Css3Style) style).cssAlignmentAdjust;
}
}
/**
* Compares two properties for equality.
*
* @param value The other property.
*/
public boolean equals(CssProperty property) {
return (property instanceof CssAlignmentAdjust &&
alignadjust.equals(((CssAlignmentAdjust) property).alignadjust));
}
/**
* Returns the name of this property
*/
public String getPropertyName() {
return "alignment-adjust";
}
/**
* Returns the value of this property
*/
public Object get() {
return alignadjust;
}
/**
* Returns true if this property is "softly" inherited
*/
public boolean isSoftlyInherited() {
return alignadjust.equals(inherit);
}
/**
* Returns a string representation of the object
*/
public String toString() {
return alignadjust.toString();
}
/**
* Is the value of this property a default value
* It is used by alle macro for the function print
*/
public boolean isDefault() {
return alignadjust == auto;
}
}