jdk/src/share/classes/sun/font/FontLineMetrics.java
author prr
Thu, 02 Apr 2009 10:16:53 -0700
changeset 2693 f87942d1edba
parent 2 90ce3da70b43
child 5506 202f599c92aa
permissions -rw-r--r--
6753173: No need to read all the TrueType 'post' table to get underline info Reviewed-by: igor, jgodinez
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Sun designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Sun in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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/*
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 *
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 * (C) Copyright IBM Corp. 2003, All Rights Reserved
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 *
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 */
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package sun.font;
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import java.awt.font.FontRenderContext;
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import java.awt.font.LineMetrics;
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/**
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 * Metrics from a font for layout of characters along a line
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 * and layout of set of lines.
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 * This and CoreMetrics replace what was previously a private internal class of Font
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 */
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public final class FontLineMetrics extends LineMetrics implements Cloneable {
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    public int numchars; // mutated by Font
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    public final CoreMetrics cm;
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    public final FontRenderContext frc;
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    public FontLineMetrics(int numchars, CoreMetrics cm, FontRenderContext frc) {
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        this.numchars = numchars;
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        this.cm = cm;
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        this.frc = frc;
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    }
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    public final int getNumChars() {
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        return numchars;
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    }
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    public final float getAscent() {
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        return cm.ascent;
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    }
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    public final float getDescent() {
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        return cm.descent;
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    }
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    public final float getLeading() {
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        return cm.leading;
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    }
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    public final float getHeight() {
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        return cm.height;
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    }
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    public final int getBaselineIndex() {
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        return cm.baselineIndex;
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    }
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    public final float[] getBaselineOffsets() {
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        return (float[])cm.baselineOffsets.clone();
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    }
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    public final float getStrikethroughOffset() {
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        return cm.strikethroughOffset;
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    }
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    public final float getStrikethroughThickness() {
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        return cm.strikethroughThickness;
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    }
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    public final float getUnderlineOffset() {
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        return cm.underlineOffset;
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    }
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    public final float getUnderlineThickness() {
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        return cm.underlineThickness;
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    }
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    public final int hashCode() {
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        return cm.hashCode();
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    }
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    public final boolean equals(Object rhs) {
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        try {
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            return cm.equals(((FontLineMetrics)rhs).cm);
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        }
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        catch (ClassCastException e) {
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            return false;
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        }
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    }
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    public final Object clone() {
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        // frc, cm do not need deep clone
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        try {
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            return super.clone();
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        }
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        catch (CloneNotSupportedException e) {
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            throw new InternalError();
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        }
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    }
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}