19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one or more 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * contributor license agreements. See the NOTICE file distributed with 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this work for additional information regarding copyright ownership. 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The ASF licenses this file to You under the Apache License, Version 2.0 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (the "License"); you may not use this file except in compliance with 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the License. You may obtain a copy of the License at 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @author Oleg V. Khaschansky 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @version $Revision$ 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage org.apache.harmony.awt.gl.font; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.awt.font.LineMetrics; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.awt.font.GraphicAttribute; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.awt.*; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Date: May 14, 2005 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Time: 7:44:13 PM 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This class incapsulates text metrics specific for the text layout or 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * for the separate text segment. Text segment is a text run with the constant direction 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and attributes like font, decorations, etc. BasicMetrics is also used to store 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * calculated text metrics like advance, ascent or descent. this class is very similar to 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * LineMetrics, but provides some additional info, constructors and is more transparent. 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class BasicMetrics { 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int baseLineIndex; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float ascent; // Ascent of the font 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float descent; // Descent of the font 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float leading; // External leading 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float advance; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float italicAngle; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float superScriptOffset; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float underlineOffset; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float underlineThickness; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float strikethroughOffset; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float strikethroughThickness; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructs BasicMetrics from LineMetrics and font 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param lm 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param font 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project BasicMetrics(LineMetrics lm, Font font) { 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ascent = lm.getAscent(); 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project descent = lm.getDescent(); 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project leading = lm.getLeading(); 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project underlineOffset = lm.getUnderlineOffset(); 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project underlineThickness = lm.getUnderlineThickness(); 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project strikethroughOffset = lm.getStrikethroughOffset(); 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project strikethroughThickness = lm.getStrikethroughThickness(); 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project baseLineIndex = lm.getBaselineIndex(); 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project italicAngle = font.getItalicAngle(); 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project superScriptOffset = (float) font.getTransform().getTranslateY(); 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructs BasicMetrics from GraphicAttribute. 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * It gets ascent and descent from the graphic attribute and 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * computes reasonable defaults for other metrics. 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param ga - graphic attribute 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project BasicMetrics(GraphicAttribute ga) { 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ascent = ga.getAscent(); 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project descent = ga.getDescent(); 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project leading = 2; 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project baseLineIndex = ga.getAlignment(); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project italicAngle = 0; 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project superScriptOffset = 0; 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project underlineOffset = Math.max(descent/2, 1); 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Just suggested, should be cap_stem_width or something like that 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project underlineThickness = Math.max(ascent/13, 1); 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project strikethroughOffset = -ascent/2; // Something like middle of the line 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project strikethroughThickness = underlineThickness; 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copies metrics from the TextMetricsCalculator object. 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param tmc - TextMetricsCalculator object 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project BasicMetrics(TextMetricsCalculator tmc) { 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ascent = tmc.ascent; 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project descent = tmc.descent; 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project leading = tmc.leading; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project advance = tmc.advance; 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project baseLineIndex = tmc.baselineIndex; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public float getAscent() { 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ascent; 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public float getDescent() { 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return descent; 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public float getLeading() { 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return leading; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public float getAdvance() { 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return advance; 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBaseLineIndex() { 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return baseLineIndex; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 135