| /* |
| |
| 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. |
| |
| */ |
| package org.apache.batik.gvt.font; |
| |
| |
| /** |
| * The KerningTable class holds a kerning table (a collection of Kern |
| * elements). It provides a more convenient method of looking up kerning values |
| * when laying out glyphs. |
| * |
| * @author <a href="mailto:dean.jackson@cmis.csiro.au">Dean Jackson</a> |
| * @version $Id$ |
| */ |
| public class KerningTable { |
| |
| private Kern[] entries; |
| |
| /** |
| * Creates a KerningTable from an array of Kern entries. |
| * |
| * @param entries The array of Kern objects that represent the kerning |
| * entries for the font that this kerning table belongs to. |
| */ |
| public KerningTable(Kern[] entries) { |
| this.entries = entries; |
| } |
| |
| /** |
| * Returns the amount of kerning that should be added between the given |
| * glyphs. Returns 0 if the glyphs should not be kerned. |
| * |
| * @param glyphCode1 The id of the first glyph in the kerning pair |
| * @param glyphCode2 The id of the second glyph in the kerning pair |
| * @param glyphUnicode1 The unicode value of the first glyph in |
| * the kerning pair |
| * @param glyphUnicode2 The unicode vlaue of the second glyph in |
| * the kerning pair |
| * @return The amount of kerning to be added when laying out the glyphs |
| */ |
| public float getKerningValue(int glyphCode1, |
| int glyphCode2, |
| String glyphUnicode1, |
| String glyphUnicode2) { |
| for (Kern entry : entries) { |
| if (entry.matchesFirstGlyph(glyphCode1, glyphUnicode1) && |
| entry.matchesSecondGlyph(glyphCode2, glyphUnicode2)) { |
| return entry.getAdjustValue(); |
| } |
| } |
| return 0f; |
| } |
| } |