363 lines
10 KiB
Java
363 lines
10 KiB
Java
/* RenderingHints.java --
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Copyright (C) 2000, 2001, 2002 Free Software Foundation
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.awt;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Set;
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/**
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* NEEDS DOCUMENTATION
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*
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* @author Rolf W. Rasmussen <rolfwr@ii.uib.no>
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* @author Eric Blake <ebb9@email.byu.edu>
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*/
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public class RenderingHints implements Map, Cloneable
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{
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public abstract static class Key
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{
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private final int key;
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protected Key(int privateKey)
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{
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key = privateKey;
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}
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public abstract boolean isCompatibleValue(Object value);
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protected final int intKey()
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{
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return key;
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}
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public final int hashCode()
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{
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return System.identityHashCode(this);
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}
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public final boolean equals(Object other)
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{
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return this == other;
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}
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} // class Key
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private static final class KeyImpl extends Key
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{
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final String description;
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final Object v1;
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final Object v2;
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final Object v3;
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KeyImpl(int privateKey, String description,
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Object v1, Object v2, Object v3)
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{
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super(privateKey);
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this.description = description;
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this.v1 = v1;
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this.v2 = v2;
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this.v3 = v3;
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}
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public boolean isCompatibleValue(Object value)
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{
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return value == v1 || value == v2 || value == v3;
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}
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public String toString()
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{
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return description;
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}
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} // class KeyImpl
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private HashMap hintMap = new HashMap();
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public static final Key KEY_ANTIALIASING;
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public static final Object VALUE_ANTIALIAS_ON
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= "Antialiased rendering mode";
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public static final Object VALUE_ANTIALIAS_OFF
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= "Nonantialiased rendering mode";
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public static final Object VALUE_ANTIALIAS_DEFAULT
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= "Default antialiasing rendering mode";
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public static final Key KEY_RENDERING;
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public static final Object VALUE_RENDER_SPEED
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= "Fastest rendering methods";
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public static final Object VALUE_RENDER_QUALITY
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= "Highest quality rendering methods";
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public static final Object VALUE_RENDER_DEFAULT
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= "Default rendering methods";
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public static final Key KEY_DITHERING;
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public static final Object VALUE_DITHER_DISABLE
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= "Nondithered rendering mode";
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public static final Object VALUE_DITHER_ENABLE
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= "Dithered rendering mode";
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public static final Object VALUE_DITHER_DEFAULT
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= "Default dithering mode";
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public static final Key KEY_TEXT_ANTIALIASING;
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public static final Object VALUE_TEXT_ANTIALIAS_ON
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= "Antialiased text mode";
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public static final Object VALUE_TEXT_ANTIALIAS_OFF
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= "Nonantialiased text mode";
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public static final Object VALUE_TEXT_ANTIALIAS_DEFAULT
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= "Default antialiasing text mode";
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public static final Key KEY_FRACTIONALMETRICS;
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public static final Object VALUE_FRACTIONALMETRICS_OFF
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= "Integer text metrics mode";
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public static final Object VALUE_FRACTIONALMETRICS_ON
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= "Fractional text metrics mode";
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public static final Object VALUE_FRACTIONALMETRICS_DEFAULT
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= "Default fractional text metrics mode";
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public static final Key KEY_INTERPOLATION;
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public static final Object VALUE_INTERPOLATION_NEAREST_NEIGHBOR
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= "Nearest Neighbor image interpolation mode";
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public static final Object VALUE_INTERPOLATION_BILINEAR
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= "Bilinear image interpolation mode";
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public static final Object VALUE_INTERPOLATION_BICUBIC
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= "Bicubic image interpolation mode";
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public static final Key KEY_ALPHA_INTERPOLATION;
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public static final Object VALUE_ALPHA_INTERPOLATION_SPEED
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= "Fastest alpha blending methods";
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public static final Object VALUE_ALPHA_INTERPOLATION_QUALITY
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= "Highest quality alpha blending methods";
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public static final Object VALUE_ALPHA_INTERPOLATION_DEFAULT
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= "Default alpha blending methods";
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public static final Key KEY_COLOR_RENDERING;
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public static final Object VALUE_COLOR_RENDER_SPEED
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= "Fastest color rendering mode";
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public static final Object VALUE_COLOR_RENDER_QUALITY
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= "Highest quality color rendering mode";
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public static final Object VALUE_COLOR_RENDER_DEFAULT
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= "Default color rendering mode";
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public static final Key KEY_STROKE_CONTROL;
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public static final Object VALUE_STROKE_DEFAULT
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= "Default stroke normalization";
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public static final Object VALUE_STROKE_NORMALIZE
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= "Normalize strokes for consistent rendering";
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public static final Object VALUE_STROKE_PURE
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= "Pure stroke conversion for accurate paths";
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static
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{
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KEY_ANTIALIASING = new KeyImpl(1, "Global antialiasing enable key",
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VALUE_ANTIALIAS_ON,
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VALUE_ANTIALIAS_OFF,
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VALUE_ANTIALIAS_DEFAULT);
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KEY_RENDERING = new KeyImpl(2, "Global rendering quality key",
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VALUE_RENDER_SPEED,
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VALUE_RENDER_QUALITY,
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VALUE_RENDER_DEFAULT);
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KEY_DITHERING = new KeyImpl(3, "Dithering quality key",
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VALUE_DITHER_DISABLE,
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VALUE_DITHER_ENABLE,
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VALUE_DITHER_DEFAULT);
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KEY_TEXT_ANTIALIASING
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= new KeyImpl(4, "Text-specific antialiasing enable key",
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VALUE_TEXT_ANTIALIAS_ON,
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VALUE_TEXT_ANTIALIAS_OFF,
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VALUE_TEXT_ANTIALIAS_DEFAULT);
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KEY_FRACTIONALMETRICS = new KeyImpl(5, "Fractional metrics enable key",
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VALUE_FRACTIONALMETRICS_OFF,
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VALUE_FRACTIONALMETRICS_ON,
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VALUE_FRACTIONALMETRICS_DEFAULT);
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KEY_INTERPOLATION = new KeyImpl(6, "Image interpolation method key",
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VALUE_INTERPOLATION_NEAREST_NEIGHBOR,
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VALUE_INTERPOLATION_BILINEAR,
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VALUE_INTERPOLATION_BICUBIC);
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KEY_ALPHA_INTERPOLATION
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= new KeyImpl(7, "Alpha blending interpolation method key",
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VALUE_ALPHA_INTERPOLATION_SPEED,
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VALUE_ALPHA_INTERPOLATION_QUALITY,
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VALUE_ALPHA_INTERPOLATION_DEFAULT);
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KEY_COLOR_RENDERING = new KeyImpl(8, "Color rendering quality key",
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VALUE_COLOR_RENDER_SPEED,
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VALUE_COLOR_RENDER_QUALITY,
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VALUE_COLOR_RENDER_DEFAULT);
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KEY_STROKE_CONTROL = new KeyImpl(9, "Stroke normalization control key",
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VALUE_STROKE_DEFAULT,
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VALUE_STROKE_NORMALIZE,
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VALUE_STROKE_PURE);
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}
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public RenderingHints(Map init)
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{
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putAll(init);
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}
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public RenderingHints(Key key, Object value)
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{
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put(key, value);
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}
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public int size()
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{
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return hintMap.size();
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}
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public boolean isEmpty()
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{
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return hintMap.isEmpty();
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}
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public boolean containsKey(Object key)
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{
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if (key == null)
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throw new NullPointerException();
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return hintMap.containsKey((Key) key);
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}
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public boolean containsValue(Object value)
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{
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return hintMap.containsValue(value);
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}
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public Object get(Object key)
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{
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return hintMap.get((Key) key);
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}
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public Object put(Object key, Object value)
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{
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if (key == null || value == null)
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throw new NullPointerException();
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if (! ((Key) key).isCompatibleValue(value))
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throw new IllegalArgumentException();
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return hintMap.put(key, value);
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}
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public void add(RenderingHints hints)
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{
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hintMap.putAll(hints);
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}
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public void clear()
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{
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hintMap.clear();
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}
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public Object remove(Object key)
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{
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return remove((Key) key);
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}
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public void putAll(Map m)
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{
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hintMap.putAll(m);
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}
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public Set keySet()
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{
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return hintMap.keySet();
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}
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public Collection values()
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{
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return hintMap.values();
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}
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public Set entrySet()
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{
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return Collections.unmodifiableSet(hintMap.entrySet());
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}
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public boolean equals(Object o)
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{
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return hintMap.equals(o);
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}
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public int hashCode()
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{
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return hintMap.hashCode();
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}
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public Object clone()
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{
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try
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{
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RenderingHints copy = (RenderingHints) super.clone();
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copy.hintMap = (HashMap) hintMap.clone();
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return copy;
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}
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catch (CloneNotSupportedException e)
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{
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throw (Error) new InternalError().initCause(e); // Impossible
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}
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}
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public String toString()
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{
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return hintMap.toString();
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}
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} // class RenderingHints
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