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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.afp.fonts;
import java.awt.Rectangle;
import org.apache.fop.afp.AFPEventProducer;
import org.apache.fop.afp.util.AFPResourceAccessor;
import org.apache.fop.fonts.Typeface;
/**
* A Character set for a normal FOP font<p/>
*/
public class FopCharacterSet extends CharacterSet {
/** The character set for this font */
private Typeface charSet = null;
/**
* Constructor for the CharacterSetMetric object, the character set is used
* to load the font information from the actual AFP font.
* @param codePage the code page identifier
* @param encoding the encoding of the font
* @param name the character set name
* @param charSet the fop character set
* @param eventProducer for handling AFP related events
*/
public FopCharacterSet(String codePage, String encoding, String name, Typeface charSet,
AFPEventProducer eventProducer) {
super(codePage, encoding, CharacterSetType.SINGLE_BYTE, name, (AFPResourceAccessor) null,
eventProducer);
this.charSet = charSet;
}
/**
* Ascender height is the distance from the character baseline to the
* top of the character box. A negative ascender height signifies that
* all of the graphic character is below the character baseline. For
* a character rotation other than 0, ascender height loses its
* meaning when the character is lying on its side or is upside down
* with respect to normal viewing orientation. For the general case,
* Ascender Height is the character's most positive y-axis value.
* For bounded character boxes, for a given character having an
* ascender, ascender height and baseline offset are equal.
* @return the ascender value in millipoints
*/
public int getAscender() {
return charSet.getAscender(1);
}
/**
* Cap height is the average height of the uppercase characters in
* a font. This value is specified by the designer of a font and is
* usually the height of the uppercase M.
* @return the cap height value in millipoints
*/
public int getCapHeight() {
return charSet.getCapHeight(1);
}
/**
* Descender depth is the distance from the character baseline to
* the bottom of a character box. A negative descender depth signifies
* that all of the graphic character is above the character baseline.
* @return the descender value in millipoints
*/
public int getDescender() {
return charSet.getDescender(1);
}
/**
* XHeight refers to the height of the lower case letters above the baseline.
* @return the typical height of characters
*/
public int getXHeight() {
return charSet.getXHeight(1);
}
@Override
public int getWidth(char character, int size) {
return charSet.getWidth(character, size);
}
@Override
public Rectangle getCharacterBox(char character, int size) {
return charSet.getBoundingBox(character, size);
};
@Override
public int getUnderscoreWidth() {
return charSet.getUnderlineThickness(1);
}
@Override
public int getUnderscorePosition() {
return charSet.getUnderlinePosition(1);
}
/**
* Map a Unicode character to a code point in the font.
* @param c character to map
* @return the mapped character
*/
public char mapChar(char c) {
return charSet.mapChar(c);
}
}
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