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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.io.IOException;
- import java.io.InputStream;
- import java.util.Map;
- import java.util.Set;
-
- import javax.xml.transform.Source;
- import javax.xml.transform.stream.StreamSource;
-
- 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
- * <tt>FontMetrics</tt> instance. This class was designed to allow
- * the underlying <tt>java.awt.Font</tt> to be loaded from a
- * user-configured file not registered in the current graphics environment.
- */
- public class CustomFontMetricsMapper extends Typeface implements FontMetricsMapper {
-
- /**
- * 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 <tt>java.awt.Font</tt>
- * @param fontMetrics
- * @throws FontFormatException
- * @throws IOException
- */
- public CustomFontMetricsMapper(final CustomFont fontMetrics)
- throws FontFormatException, IOException {
- this.typeface = fontMetrics;
- initialize(fontMetrics.getEmbedFileSource());
- }
-
- /**
- * Construction of this class results in the immediate construction
- * of the underlying <tt>java.awt.Font</tt>
- * @param fontMetrics
- * @throws FontFormatException
- * @throws IOException
- */
- public CustomFontMetricsMapper(final LazyFont fontMetrics, final Source 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 source
- * @throws FontFormatException
- * @throws IOException
- */
- private void initialize(final Source source)
- 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
- }
-
- InputStream is = null;
- if (source instanceof StreamSource) {
- is = ((StreamSource) source).getInputStream();
- } else if (source.getSystemId() != null) {
- is = new java.net.URL(source.getSystemId()).openStream();
- } else {
- throw new IllegalArgumentException("No font source provided.");
- }
-
- this.font = Font.createFont(type, is);
- is.close();
-
- }
-
- /** {@inheritDoc} */
- public final String getEncoding() {
- 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 getFamilyNames() {
- return typeface.getFamilyNames();
- }
-
- /** {@inheritDoc} */
- public final String getFontName() {
- return typeface.getFontName();
- }
-
- /** {@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();
- }
-
- /** {@inheritDoc} */
- public final int getXHeight(final int size) {
- return typeface.getXHeight(size);
- }
-
- /** {@inheritDoc} */
- public final boolean hasKerningInfo() {
- return typeface.hasKerningInfo();
- }
-
- }
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