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/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.fo.flow;
// FOP
import org.apache.fop.fo.CharIterator;
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.FObj;
import org.apache.fop.fo.OneCharIterator;
import org.apache.fop.fo.FOTreeVisitor;
import org.apache.fop.fo.properties.CommonAural;
import org.apache.fop.fo.properties.CommonBorderAndPadding;
import org.apache.fop.fo.properties.CommonBackground;
import org.apache.fop.fo.properties.CommonHyphenation;
import org.apache.fop.fo.properties.CommonMarginInline;
import org.apache.fop.fo.properties.CommonRelativePosition;
import org.apache.fop.apps.FOPException;
/**
* This class represents the flow object 'fo:character'. Its use is defined by
* the spec: "The fo:character flow object represents a character that is mapped to
* a glyph for presentation. It is an atomic unit to the formatter.
* When the result tree is interpreted as a tree of formatting objects,
* a character in the result tree is treated as if it were an empty
* element of type fo:character with a character attribute
* equal to the Unicode representation of the character.
* The semantics of an "auto" value for character properties, which is
* typically their initial value, are based on the Unicode codepoint.
* Overrides may be specified in an implementation-specific manner." (6.6.3)
*
*/
public class Character extends FObj {
/** constant indicating that the character is OK */
public static final int OK = 0;
/** constant indicating that the character does not fit */
public static final int DOESNOT_FIT = 1;
private char characterValue;
/**
* @param parent FONode that is the parent of this object
*/
public Character(FONode parent) {
super(parent);
}
private void setup() throws FOPException {
// Common Aural Properties
CommonAural mAurProps = propMgr.getAuralProps();
// Common Border, Padding, and Background Properties
CommonBorderAndPadding bap = propMgr.getBorderAndPadding();
CommonBackground bProps = propMgr.getBackgroundProps();
// Common Font Properties
//this.fontState = propMgr.getFontState(area.getFontInfo());
// Common Hyphenation Properties
CommonHyphenation mHyphProps = propMgr.getHyphenationProps();
// Common Margin Properties-Inline
CommonMarginInline mProps = propMgr.getMarginInlineProps();
// Common Relative Position Properties
CommonRelativePosition mRelProps =
propMgr.getRelativePositionProps();
// this.propertyList.get("alignment-adjust");
// this.propertyList.get("treat-as-word-space");
// this.propertyList.get("alignment-baseline");
// this.propertyList.get("baseline-shift");
// this.propertyList.get("character");
// this.propertyList.get("color");
// this.propertyList.get("dominant-baseline");
// this.propertyList.get("text-depth");
// this.propertyList.get("text-altitude");
// this.propertyList.get("glyph-orientation-horizontal");
// this.propertyList.get("glyph-orientation-vertical");
setupID();
// this.propertyList.get("keep-with-next");
// this.propertyList.get("keep-with-previous");
// this.propertyList.get("letter-spacing");
// this.propertyList.get("line-height");
// this.propertyList.get("line-height-shift-adjustment");
// this.propertyList.get("score-spaces");
// this.propertyList.get("suppress-at-line-break");
// this.propertyList.get("text-decoration");
// this.propertyList.get("text-shadow");
// this.propertyList.get("text-transform");
// this.propertyList.get("word-spacing");
}
/**
* @see org.apache.fop.fo.FObj#charIterator
*/
public CharIterator charIterator() {
return new OneCharIterator(characterValue);
// But what it the character is ignored due to white space handling?
}
/**
* This is a hook for an FOTreeVisitor subclass to be able to access
* this object.
* @param fotv the FOTreeVisitor subclass that can access this object.
* @see org.apache.fop.fo.FOTreeVisitor
*/
public void acceptVisitor(FOTreeVisitor fotv) {
fotv.serveCharacter(this);
}
public String getName() {
return "fo:character";
}
}
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