- /*
- * 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.ps;
-
- import java.util.Map;
-
- import org.apache.xmlgraphics.ps.PSResource;
-
- import org.apache.fop.fonts.FontInfo;
- import org.apache.fop.fonts.LazyFont;
- import org.apache.fop.fonts.Typeface;
-
- /**
- * A cache for font resource objects.
- */
- class FontResourceCache {
-
- private final FontInfo fontInfo;
-
- /** This is a map of PSResource instances of all fonts defined (key: font key) */
- private Map fontResources = new java.util.HashMap();
-
- public FontResourceCache(FontInfo fontInfo) {
- this.fontInfo = fontInfo;
- }
-
- /**
- * Returns the PSFontResource for the given font key.
- * @param key the font key ("F*")
- * @return the matching PSFontResource instance
- */
- public PSFontResource getFontResourceForFontKey(String key) {
- PSFontResource res = null;
- if (this.fontResources != null) {
- res = (PSFontResource)this.fontResources.get(key);
- } else {
- this.fontResources = new java.util.HashMap();
- }
- if (res == null) {
- res = PSFontResource.createFontResource(
- new PSResource(PSResource.TYPE_FONT, getPostScriptNameForFontKey(key)));
- this.fontResources.put(key, res);
- }
- return res;
- }
-
- private String getPostScriptNameForFontKey(String key) {
- int pos = key.indexOf('_');
- String postFix = null;
- if (pos > 0) {
- postFix = key.substring(pos);
- key = key.substring(0, pos);
- }
- Map<String, Typeface> fonts = fontInfo.getFonts();
- Typeface tf = fonts.get(key);
- if (tf instanceof LazyFont) {
- tf = ((LazyFont)tf).getRealFont();
- }
- if (tf == null) {
- throw new IllegalStateException("Font not available: " + key);
- }
- if (postFix == null) {
- return tf.getEmbedFontName();
- } else {
- return tf.getEmbedFontName() + postFix;
- }
- }
-
- /**
- * Adds a number of fonts to the cache.
- * @param fontMap the font map
- */
- public void addAll(Map fontMap) {
- this.fontResources.putAll(fontMap);
- }
-
- }
|