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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.render.java2d;
-
- import java.awt.Font;
- import java.awt.FontFormatException;
- import java.awt.Rectangle;
- import java.io.IOException;
- import java.io.InputStream;
- import java.net.URI;
- import java.util.List;
- import java.util.Map;
- import java.util.Set;
-
- import org.apache.fop.complexscripts.fonts.Positionable;
- import org.apache.fop.complexscripts.fonts.Substitutable;
- import org.apache.fop.fonts.CustomFont;
- import org.apache.fop.fonts.FontType;
- import org.apache.fop.fonts.LazyFont;
- import org.apache.fop.fonts.Typeface;
-
- /**
- * FontMetricsMapper that delegates most methods to an underlying
- * {@link org.apache.fop.fonts.FontMetrics} instance. This class was designed to allow
- * the underlying {@link Font} to be loaded from a
- * user-configured file not registered in the current graphics environment.
- */
- public class CustomFontMetricsMapper extends Typeface implements FontMetricsMapper, Substitutable,
- Positionable {
-
- /**
- * Font metrics for the font this class models.
- */
- private Typeface typeface;
-
- /**
- * The font required by the Java2D renderer.
- */
- private java.awt.Font font;
-
- /**
- * Maintains the most recently requested size.
- */
- private float size = 1;
-
- /**
- * Construction of this class results in the immediate construction
- * of the underlying {@link java.awt.Font}.
- * @param fontMetrics the metrics of the custom font
- * @throws FontFormatException if a bad font is loaded
- * @throws IOException if an I/O error occurs
- */
- public CustomFontMetricsMapper(final CustomFont fontMetrics)
- throws FontFormatException, IOException {
- this.typeface = fontMetrics;
- initialize(fontMetrics.getInputStream());
- }
-
- /**
- * Construction of this class results in the immediate construction
- * of the underlying {@link java.awt.Font}.
- * @param fontMetrics the font
- * @param fontSource the font source to access the font
- * @throws FontFormatException if a bad font is loaded
- * @throws IOException if an I/O error occurs
- */
- public CustomFontMetricsMapper(final LazyFont fontMetrics, final InputStream fontSource)
- throws FontFormatException, IOException {
- this.typeface = fontMetrics;
- initialize(fontSource);
- }
-
- private static final int TYPE1_FONT = 1; //Defined in Java 1.5
-
- /**
- * Loads the java.awt.Font
- * @param inStream
- * @throws FontFormatException
- * @throws IOException
- */
- private void initialize(final InputStream inStream)
- throws FontFormatException, IOException {
- int type = Font.TRUETYPE_FONT;
- if (FontType.TYPE1.equals(typeface.getFontType())) {
- type = TYPE1_FONT; //Font.TYPE1_FONT; only available in Java 1.5
- }
- this.font = Font.createFont(type, inStream);
- inStream.close();
- }
-
- /** {@inheritDoc} */
- public final String getEncodingName() {
- return null; //Not applicable to Java2D rendering
- }
-
- /** {@inheritDoc} */
- public final boolean hasChar(final char c) {
- return font.canDisplay(c);
- }
-
- /** {@inheritDoc} */
- public final char mapChar(final char c) {
- return typeface.mapChar(c);
- }
-
- /** {@inheritDoc} */
- public final Font getFont(final int size) {
- if (this.size == size) {
- return font;
- }
-
- this.size = size / 1000f;
- font = font.deriveFont(this.size);
- return font;
- }
-
- /** {@inheritDoc} */
- public final int getAscender(final int size) {
- return typeface.getAscender(size);
- }
-
- /** {@inheritDoc} */
- public final int getCapHeight(final int size) {
- return typeface.getCapHeight(size);
- }
-
- /** {@inheritDoc} */
- public final int getDescender(final int size) {
- return typeface.getDescender(size);
- }
-
- /** {@inheritDoc} */
- public final String getEmbedFontName() {
- return typeface.getEmbedFontName();
- }
-
- /** {@inheritDoc} */
- public final Set<String> getFamilyNames() {
- return typeface.getFamilyNames();
- }
-
- /** {@inheritDoc} */
- public final String getFontName() {
- return typeface.getFontName();
- }
-
- /** {@inheritDoc} */
- public final URI getFontURI() {
- return typeface.getFontURI();
- }
-
- /** {@inheritDoc} */
- public final FontType getFontType() {
- return typeface.getFontType();
- }
-
- /** {@inheritDoc} */
- public final String getFullName() {
- return typeface.getFullName();
- }
-
- /** {@inheritDoc} */
- public final Map getKerningInfo() {
- return typeface.getKerningInfo();
- }
-
- /** {@inheritDoc} */
- public final int getWidth(final int i, final int size) {
- return typeface.getWidth(i, size);
- }
-
- /** {@inheritDoc} */
- public final int[] getWidths() {
- return typeface.getWidths();
- }
-
- public Rectangle getBoundingBox(int glyphIndex, int size) {
- return typeface.getBoundingBox(glyphIndex, size);
- }
-
- /** {@inheritDoc} */
- public final int getXHeight(final int size) {
- return typeface.getXHeight(size);
- }
-
- public int getUnderlinePosition(int size) {
- return typeface.getUnderlinePosition(size);
- }
-
- public int getUnderlineThickness(int size) {
- return typeface.getUnderlineThickness(size);
- }
-
- public int getStrikeoutPosition(int size) {
- return typeface.getStrikeoutPosition(size);
- }
-
- public int getStrikeoutThickness(int size) {
- return typeface.getStrikeoutThickness(size);
- }
-
- /** {@inheritDoc} */
- public final boolean hasKerningInfo() {
- return typeface.hasKerningInfo();
- }
-
- /** {@inheritDoc} */
- public boolean isMultiByte() {
- return typeface.isMultiByte();
- }
-
- /**
- * {@inheritDoc}
- */
- public boolean performsPositioning() {
- if (typeface instanceof Positionable) {
- return ((Positionable) typeface).performsPositioning();
- } else {
- return false;
- }
- }
-
- /**
- * {@inheritDoc}
- */
- public int[][] performPositioning(CharSequence cs, String script, String language, int fontSize) {
- if (typeface instanceof Positionable) {
- return ((Positionable) typeface).performPositioning(cs, script, language, fontSize);
- } else {
- return null;
- }
- }
-
- /**
- * {@inheritDoc}
- */
- public int[][] performPositioning(CharSequence cs, String script, String language) {
- if (typeface instanceof Positionable) {
- return ((Positionable) typeface).performPositioning(cs, script, language);
- } else {
- return null;
- }
- }
-
- /**
- * {@inheritDoc}
- */
- public boolean performsSubstitution() {
- if (typeface instanceof Substitutable) {
- return ((Substitutable) typeface).performsSubstitution();
- } else {
- return false;
- }
- }
-
- /**
- * {@inheritDoc}
- */
- public CharSequence performSubstitution(CharSequence cs, String script, String language, List associations,
- boolean retainControls) {
- if (typeface instanceof Substitutable) {
- return ((Substitutable) typeface).performSubstitution(cs, script, language, associations, retainControls);
- } else {
- return cs;
- }
- }
-
- /**
- * {@inheritDoc}
- */
- public CharSequence reorderCombiningMarks(CharSequence cs, int[][] gpa,
- String script, String language, List associations) {
- if (typeface instanceof Substitutable) {
- return ((Substitutable) typeface).reorderCombiningMarks(cs, gpa, script, language, associations);
- } else {
- return cs;
- }
- }
-
- public Typeface getRealFont() {
- return typeface;
- }
-
- }
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