/*
 * 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: SystemFontMetricsMapper.java 1618496 2014-08-17 18:56:01Z gadams $ */

package org.apache.fop.render.java2d;

// Java
import java.awt.Rectangle;
import java.net.URI;
import java.util.Map;
import java.util.Set;

import org.apache.fop.fonts.FontType;
import org.apache.fop.fonts.Typeface;


This class implements org.apache.fop.layout.FontMetrics and
is added to the hash table in FontInfo. It  deferes the
actual calculation of the metrics to
Java2DFontMetrics.  It only keeps the java name and
style as member varibles
/**
 * This class implements org.apache.fop.layout.FontMetrics and
 * is added to the hash table in FontInfo. It  deferes the
 * actual calculation of the metrics to
 * Java2DFontMetrics.  It only keeps the java name and
 * style as member varibles
 */

public class SystemFontMetricsMapper extends Typeface implements FontMetricsMapper {

    
This is a Java2DFontMetrics that does the real calculation.
It is only one class that dynamically determines the font-size.
/**
     * This is a Java2DFontMetrics that does the real calculation.
     * It is only one class that dynamically determines the font-size.
     */
    private final Java2DFontMetrics java2DFontMetrics;

    private final URI fontFileURI;

    
The java name of the font.
#  Make the family name immutable.
/**
     * The java name of the font.
     * #  Make the family name immutable.
     */
    private final String family;

    
The java style of the font.
#  Make the style immutable.
/**
     * The java style of the font.
     * #  Make the style immutable.
     */
    private final int style;

    
Constructs a new Font-metrics.
Params:
family – the family name of the font (java value)
style – the java type style value of the font
java2DFontMetrics – metric calculations delegated to this/**
     * Constructs a new Font-metrics.
     * @param family the family name of the font (java value)
     * @param style the java type style value of the font
     * @param java2DFontMetrics metric calculations delegated to this
     */
    public SystemFontMetricsMapper(String family, int style, Java2DFontMetrics java2DFontMetrics) {
        URI uri;
        try {
            uri = new URI("system:" + family.toLowerCase());
        } catch (java.net.URISyntaxException e) {
            uri = null;
        }
        this.fontFileURI = uri;
        this.family = family;
        this.style = style;
        this.java2DFontMetrics = java2DFontMetrics;
    }

    
{@inheritDoc} /** {@inheritDoc} */
    public final URI getFontURI() {
        return null;
    }

    
{@inheritDoc} /** {@inheritDoc} */
    public String getFontName() {
        return family;
    }

    
{@inheritDoc} /** {@inheritDoc} */
    public String getEmbedFontName() {
        return getFontName();
    }

    
{@inheritDoc} /** {@inheritDoc} */
    public String getFullName() {
        return getFontName();
    }

    
{@inheritDoc} /** {@inheritDoc} */
    public Set getFamilyNames() {
        Set s = new java.util.HashSet();
        s.add(this.family);
        return s;
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public FontType getFontType() {
        return FontType.OTHER;
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public int getMaxAscent(int size) {
        return java2DFontMetrics.getMaxAscent(family, style, size);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public int getAscender(int size) {
        return java2DFontMetrics.getAscender(family, style, size);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public int getCapHeight(int size) {
        return java2DFontMetrics.getCapHeight(family, style, size);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public int getDescender(int size) {
        return java2DFontMetrics.getDescender(family, style, size);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public int getXHeight(int size) {
        return java2DFontMetrics.getXHeight(family, style, size);
    }

    public int getUnderlinePosition(int size) {
        return java2DFontMetrics.getUnderlinePosition(family, style, size);
    }

    public int getUnderlineThickness(int size) {
        return java2DFontMetrics.getUnderlineThickness(family, style, size);
    }

    public int getStrikeoutPosition(int size) {
        return java2DFontMetrics.getStrikeoutPosition(family, style, size);
    }

    public int getStrikeoutThickness(int size) {
        return java2DFontMetrics.getStrikeoutThickness(family, style, size);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public int getWidth(int i, int size) {
        return java2DFontMetrics.width(i, family, style, size);
    }


    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public int[] getWidths() {
        return java2DFontMetrics.getWidths(family, style, Java2DFontMetrics.FONT_SIZE);
    }

    public Rectangle getBoundingBox(int glyphIndex, int size) {
        throw new UnsupportedOperationException("Not implemented");
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public java.awt.Font getFont(int size) {
        return java2DFontMetrics.getFont(family, style, size);
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public Map getKerningInfo() {
        return java.util.Collections.EMPTY_MAP;
    }

    
{@inheritDoc}
/**
     * {@inheritDoc}
     */
    public boolean hasKerningInfo() {
        return false;
    }

    
{@inheritDoc} /** {@inheritDoc} */
    public String getEncodingName() {
        return null; //Not applicable to Java2D rendering
    }

    
{@inheritDoc} /** {@inheritDoc} */
    public char mapChar(char c) {
        return c;
    }

    
{@inheritDoc} /** {@inheritDoc} */
    public boolean hasChar(char c) {
        return java2DFontMetrics.hasChar(family, style, Java2DFontMetrics.FONT_SIZE, c);
    }

}