001/* =================================================== 002 * JFreeSVG : an SVG library for the Java(tm) platform 003 * =================================================== 004 * 005 * (C)opyright 2013-2021, by Object Refinery Limited. All rights reserved. 006 * 007 * Project Info: http://www.jfree.org/jfreesvg/index.html 008 * 009 * This program is free software: you can redistribute it and/or modify 010 * it under the terms of the GNU General Public License as published by 011 * the Free Software Foundation, either version 3 of the License, or 012 * (at your option) any later version. 013 * 014 * This program is distributed in the hope that it will be useful, 015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 017 * GNU General Public License for more details. 018 * 019 * You should have received a copy of the GNU General Public License 020 * along with this program. If not, see <http://www.gnu.org/licenses/>. 021 * 022 * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 023 * Other names may be trademarks of their respective owners.] 024 * 025 * If you do not wish to be bound by the terms of the GPL, an alternative 026 * commercial license can be purchased. For details, please see visit the 027 * JFreeSVG home page: 028 * 029 * http://www.jfree.org/jfreesvg 030 * 031 */ 032 033package org.jfree.graphics2d.svg; 034 035import java.awt.Font; 036import java.util.HashMap; 037import java.util.Map; 038import org.jfree.graphics2d.Args; 039 040/** 041 * A default implementation of the {@link FontMapper} interface. This 042 * implementation will map the Java logical fonts to equivalent SVG generic 043 * fonts. You can add your own mappings if you need to. 044 * 045 * @since 1.5 046 */ 047public class StandardFontMapper implements FontMapper { 048 049 /** Storage for the alternates. */ 050 private Map<String, String> alternates; 051 052 /** 053 * Creates a new instance with mappings for the Java logical fonts. 054 */ 055 public StandardFontMapper() { 056 this.alternates = new HashMap<String, String>(); 057 this.alternates.put(Font.DIALOG, "sans-serif"); 058 this.alternates.put(Font.DIALOG_INPUT, "monospace"); 059 this.alternates.put(Font.SANS_SERIF, "sans-serif"); 060 this.alternates.put(Font.SERIF, "serif"); 061 this.alternates.put(Font.MONOSPACED, "monospace"); 062 } 063 064 /** 065 * Returns the mapped (alternate) font family name. 066 * 067 * @param family the font family ({@code null} not permitted). 068 * 069 * @return The alternate font family name (possibly {@code null}). 070 */ 071 public String get(String family) { 072 Args.nullNotPermitted(family, "family"); 073 return this.alternates.get(family); 074 } 075 076 /** 077 * Adds a font family mapping (if the specified alternate is 078 * {@code null} it has the effect of clearing any existing mapping). 079 * 080 * @param family the font family name ({@code null} not permitted). 081 * @param alternate the alternate ({@code null} permitted). 082 */ 083 public void put(String family, String alternate) { 084 Args.nullNotPermitted(family, "family"); 085 this.alternates.put(family, alternate); 086 } 087 088 /** 089 * Maps the specified font family name to an alternative, or else returns 090 * the same family name. 091 * 092 * @param family the font family name ({@code null} not permitted). 093 * 094 * @return The same font family name or an alternative (never {@code null}). 095 */ 096 @Override 097 public String mapFont(String family) { 098 Args.nullNotPermitted(family, "family"); 099 String alternate = this.alternates.get(family); 100 if (alternate != null) { 101 return alternate; 102 } 103 return family; 104 } 105 106}