org.oss.pdfreporter.font.FontManager.java Source code

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Here is the source code for org.oss.pdfreporter.font.FontManager.java

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/*******************************************************************************
 * Copyright (c) 2013 Open Software Solutions GmbH.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     Open Software Solutions GmbH - initial API and implementation
 ******************************************************************************/
package org.oss.pdfreporter.font;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import com.lowagie.text.Font;
import com.lowagie.text.FontFactory;

public class FontManager extends AbstractFontManager {

    private int fontId = 1;
    private Map<String, Alias> loadedFonts = new HashMap<String, Alias>();

    @Override
    String loadFontInternal(String filePath, String encoding, boolean embed) throws IOException {
        Alias alias = new Alias(fontId++, encoding, embed);
        FontFactory.register(filePath, alias.getName());
        loadedFonts.put(alias.getName(), alias);
        return alias.getName();
    }

    @Override
    IFontPeer getFontInternal(String fontname) {
        boolean embedded = false;
        String encoding = "CP1252";
        if (loadedFonts.containsKey(fontname)) {
            Alias alias = loadedFonts.get(fontname);
            fontname = alias.getName();
            encoding = alias.getEncoding();
            embedded = alias.isEmbed();
        }
        Font font;
        try {
            font = FontFactory.getFont(fontname, encoding, embedded, Font.UNDEFINED, Font.UNDEFINED, null);
        } catch (Exception e) {
            throw new RuntimeException("Unable to load Font: " + fontname + " with encoding:  " + encoding, e);
        }
        if (font == null) {
            throw new RuntimeException("Font: " + fontname + " not found.");
        }
        return new FontPeer(font.getBaseFont());
    }

    @Override
    void disposeInternal() {
        loadedFonts.clear();
    }

    private static class Alias {
        private final String name;
        private final String encoding;
        private final boolean embed;

        Alias(int fontId, String encoding, boolean embed) {
            this.name = "TTF-" + fontId;
            this.encoding = encoding;
            this.embed = embed;
        }

        String getName() {
            return name;
        }

        boolean isEmbed() {
            return embed;
        }

        String getEncoding() {
            return encoding;
        }

    }

}