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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 org.apache.fop.afp.AFPEventProducer;
-
- /**
- * A font defined as a set of lines and curves as opposed to a bitmap font. An
- * outline font can be scaled to any size and otherwise transformed more easily
- * than a bitmap font, and with more attractive results.
- */
- public abstract class AbstractOutlineFont extends AFPFont {
-
- /** The character set for this font */
- protected CharacterSet charSet;
-
- private final AFPEventProducer eventProducer;
-
- /**
- * Constructor for an outline font.
- *
- * @param name the name of the font
- * @param embeddable sets whether or not this font is to be embedded
- * @param charSet the chracter set
- * @param eventProducer The object to handle any events which occur from the object.
- */
- public AbstractOutlineFont(String name, boolean embeddable, CharacterSet charSet,
- AFPEventProducer eventProducer) {
- super(name, embeddable);
- this.charSet = charSet;
- this.eventProducer = eventProducer;
- }
-
- AFPEventProducer getAFPEventProducer() {
- return eventProducer;
- }
-
- /**
- * Get the character set metrics.
- *
- * @return the character set
- */
- public CharacterSet getCharacterSet() {
- return charSet;
- }
-
- /**
- * Get the character set metrics.
- * @param size ignored
- * @return the character set
- */
- public CharacterSet getCharacterSet(int size) {
- return charSet;
- }
-
- /**
- * The ascender is the part of a lowercase letter that extends above the
- * "x-height" (the height of the letter "x"), such as "d", "t", or "h". Also
- * used to denote the part of the letter extending above the x-height.
- *
- * @param size the font size (in mpt)
- * @return the ascender for the given size
- */
- public int getAscender(int size) {
- return charSet.getAscender() * size;
- }
-
- /** {@inheritDoc} */
- public int getUnderlinePosition(int size) {
- return charSet.getUnderscorePosition() * size;
- }
-
- @Override
- public int getUnderlineThickness(int size) {
- int underscoreWidth = charSet.getUnderscoreWidth();
- return underscoreWidth == 0 ? super.getUnderlineThickness(size) : underscoreWidth * size;
- }
-
- /**
- * Obtains the height of capital letters for the specified point size.
- *
- * @param size the font size (in mpt)
- * @return the cap height for the given size
- */
- public int getCapHeight(int size) {
- return charSet.getCapHeight() * size;
- }
-
- /**
- * The descender is the part of a lowercase letter that extends below the
- * base line, such as "g", "j", or "p". Also used to denote the part of the
- * letter extending below the base line.
- *
- * @param size the font size (in mpt)
- * @return the descender for the given size
- */
- public int getDescender(int size) {
- return charSet.getDescender() * size;
- }
-
- /**
- * The "x-height" (the height of the letter "x").
- *
- * @param size the font size (in mpt)
- * @return the x height for the given size
- */
- public int getXHeight(int size) {
- return charSet.getXHeight() * size;
- }
-
-
-
- /** {@inheritDoc} */
- public boolean hasChar(char c) {
- return charSet.hasChar(c);
- }
-
- /**
- * 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);
- }
-
- /** {@inheritDoc} */
- public String getEncodingName() {
- return charSet.getEncoding();
- }
-
- }
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