org.w3c.css.properties.aural.ACssVoiceFamily Maven / Gradle / Ivy
//
// $Id: ACssVoiceFamily.java,v 1.4 2010-01-05 13:49:36 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.aural;
import java.util.Enumeration;
import java.util.Vector;
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.util.Util;
import org.w3c.css.values.CssExpression;
import org.w3c.css.values.CssIdent;
import org.w3c.css.values.CssOperator;
import org.w3c.css.values.CssString;
import org.w3c.css.values.CssValue;
/**
* 5.2 'voice-family'
*
* Value: [[<specific-voice> | <generic-voice>],]*
* [<specific-voice> | <generic-voice>]
* Initial: UA
* Applies to: all elements
* Inherited: yes
* Percentage values: NA
*
*
The value is a prioritized list of voice family names (compare
* with 'font-family'. Suggested
* genric families: male, female, child.
*
*
Examples of specific voice families are: comedian, trinoids, carlos, lisa
*
*
Examples
*
*
* H1 { voice-family: announcer, male }
* P.part.romeo { voice-family: romeo, male }
* P.part.juliet { voice-family: juliet, female }
*
*
* Should the properties of these family names be
* described, using an @-rule, to allow better client-side matching (like
* fonts). If so, what are the values that describe these voice families
* in a way that is independent of speech synthesizer?
*
* @version $Revision: 1.4 $
*/
public class ACssVoiceFamily extends ACssProperty implements CssOperator {
Vector family_name = new Vector();
boolean inheritValue;
static String[] genericFamily = { "male", "female", "child" };
static int[] genericFamilyHash;
boolean withSpace = false;
/**
* Create a new ACssVoiceFamily
*/
public ACssVoiceFamily() {
// depends on user agent
}
/**
* Create a new ACssVoiceFamily
* @param value the voice name
* @exception InvalidParamException The expression is incorrect
*/
public ACssVoiceFamily(ApplContext ac, CssExpression value, boolean check)
throws InvalidParamException {
boolean family = true;
CssValue val = value.getValue();
char op;
//@@ and if name is already in the vector ?
setByUser();
if (val.equals(inherit)) {
if(value.getCount() > 1) {
throw new InvalidParamException("unrecognize", ac);
}
inheritValue = true;
return;
}
while (family) {
val = value.getValue();
op = value.getOperator();
if ((op != COMMA) && (op != SPACE)) {
throw new InvalidParamException("operator",
(new Character(op)).toString(), ac);
}
if(val != null && val.equals(inherit)) {
throw new InvalidParamException("unrecognize", ac);
}
if (val instanceof CssString) {
String familyName = null;
if (op == COMMA) { // "helvetica", "roman"
familyName = trimToOneSpace(val.toString());
value.next();
} else { // "helvetica" CssValue
familyName = trimToOneSpace(val.toString());
family = false;
value.next();
}
if (familyName.length() > 2) {
String tmp = familyName.substring(1, familyName.length()-1);
for (int i = 0; i < genericFamily.length; i++) {
if (genericFamily[i].equals(tmp)) {
throw new InvalidParamException("generic-family.quote",
genericFamily[i],
getPropertyName(),
ac);
}
}
}
family_name.addElement(familyName);
} else if (val instanceof CssIdent) {
if (op == COMMA) {
family_name.addElement(val.toString());
value.next();
} else {
CssValue next = value.getNextValue();
if (next != null && next instanceof CssIdent) {
// @@ null and instanceof
CssIdent New = new CssIdent(val.get()
+ " " + next.get());
withSpace = true;
value.remove();
op = value.getOperator();
value.remove();
value.insert(New);
value.setCurrentOperator(op);
} else {
family_name.addElement(val.toString());
value.next();
family = false;
}
}
} else {
throw new InvalidParamException("value", val.toString(),
getPropertyName(), ac);
}
}
}
public ACssVoiceFamily(ApplContext ac, CssExpression expression)
throws InvalidParamException {
this(ac, expression, false);
}
/**
* Returns all voices name
*/
public Enumeration elements() {
return family_name.elements();
}
/**
* Returns the size
*/
public int size() {
return family_name.size();
}
/**
* Returns the voice (null if no voice)
*/
public Object get() {
if (family_name.size() == 0) {
return null;
}
return family_name.firstElement();
}
/**
* Returns true if this property is "softly" inherited
* e.g. his value is equals to inherit
*/
public boolean isSoftlyInherited() {
return inheritValue;
}
/**
* Returns a string representation of the object.
*/
public String toString() {
if (inheritValue) {
return inherit.toString();
} else {
String r = "";
for (Enumeration e = elements(); e.hasMoreElements();)
// r += ", " + e.nextElement().toString();
r += ", " + e.nextElement().toString();
if (r.length() < 3) {
return null;
}
return r.substring(2);
}
}
/**
* Returns the name of this property
*/
public String getPropertyName() {
return "voice-family";
}
/**
* Add this property to the CssStyle.
*
* @param style The CssStyle
*/
public void addToStyle(ApplContext ac, CssStyle style) {
if (((ACssStyle) style).acssVoiceFamily != null)
style.addRedefinitionWarning(ac, this);
((ACssStyle) style).acssVoiceFamily = this;
}
/**
* Compares two properties for equality.
*
* @param value The other property.
*/
public boolean equals(CssProperty property) {
return false; //@@ FIXME
}
/**
* 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 ((ACssStyle) style).getVoiceFamily();
} else {
return ((ACssStyle) style).acssVoiceFamily;
}
}
private static String trimToOneSpace(String name) {
int count = name.length();
char[] dst = new char[count];
char[] src = new char[count];
int index = -1;
name.getChars(0, count, src, 0);
for(int i=0; i < count; i++)
if ( i == 0 || ! Util.isWhiteSpace(src[i]) ||
( Util.isWhiteSpace(src[i]) && !Util.isWhiteSpace(dst[index]) ) )
dst[++index] = src[i];
return new String(dst, 0, index+1);
}
/**
* Returns true if this property contains a generic family name
*/
public boolean containsGenericFamily() {
if (family_name.size() == 0) {
return true;
} else {
for (Enumeration e = family_name.elements();
e.hasMoreElements();) {
int hash = ((String) e.nextElement()).toLowerCase().hashCode();
for (int i = 0; i < genericFamilyHash.length; i++) {
if (hash == genericFamilyHash[i])
return true;
}
}
return false;
}
}
static {
genericFamilyHash = new int[genericFamily.length];
for (int i = 0; i < genericFamily.length; i++) {
genericFamilyHash[i] = genericFamily[i].hashCode();
}
}
}