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	/*
	* Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package sun.awt;

	import java.awt.RenderingHints;
	import java.lang.annotation.Native;

	/**
	* This class contains rendering hints that can be used by the
	* {@link java.awt.Graphics2D} class, and classes that implement
	* {@link java.awt.image.BufferedImageOp} and
	* {@link java.awt.image.Raster}.
	*/
	public class SunHints {
	/**
	* Defines the type of all keys used to control various
	* aspects of the rendering and imaging pipelines. Instances
	* of this class are immutable and unique which means that
	* tests for matches can be made using the == operator instead
	* of the more expensive equals() method.
	*/
	public static class Key extends RenderingHints.Key {
	String description;

	/**
	* Construct a key using the indicated private key. Each
	* subclass of Key maintains its own unique domain of integer
	* keys. No two objects with the same integer key and of the
	* same specific subclass can be constructed. An exception
	* will be thrown if an attempt is made to construct another
	* object of a given class with the same integer key as a
	* pre-existing instance of that subclass of Key.
	*/
	public Key(int privatekey, String description) {
	super(privatekey);
	this.description = description;
	}

	/**
	* Returns the numeric index associated with this Key. This
	* is useful for use in switch statements and quick lookups
	* of the setting of a particular key.
	*/
	public final int getIndex() {
	return intKey();
	}

	/**
	* Returns a string representation of the Key.
	*/
	public final String toString() {
	return description;
	}

	/**
	* Returns true if the specified object is a valid value
	* for this Key.
	*/
	public boolean isCompatibleValue(Object val) {
	if (val instanceof Value) {
	return ((Value)val).isCompatibleKey(this);
	}
	return false;
	}
	}

	/**
	* Defines the type of all "enumerative" values used to control
	* various aspects of the rendering and imaging pipelines. Instances
	* of this class are immutable and unique which means that
	* tests for matches can be made using the == operator instead
	* of the more expensive equals() method.
	*/
	public static class Value {
	private SunHints.Key myKey;
	private int index;
	private String description;

	private static Value[][] ValueObjects =
	new Value[NUM_KEYS][VALS_PER_KEY];

	private synchronized static void register(SunHints.Key key,
	Value value) {
	int kindex = key.getIndex();
	int vindex = value.getIndex();
	if (ValueObjects[kindex][vindex] != null) {
	throw new InternalError("duplicate index: "+vindex);
	}
	ValueObjects[kindex][vindex] = value;
	}

	public static Value get(int keyindex, int valueindex) {
	return ValueObjects[keyindex][valueindex];
	}

	/**
	* Construct a value using the indicated private index. Each
	* subclass of Value maintains its own unique domain of integer
	* indices. Enforcing the uniqueness of the integer indices
	* is left to the subclass.
	*/
	public Value(SunHints.Key key, int index, String description) {
	this.myKey = key;
	this.index = index;
	this.description = description;

	register(key, this);
	}

	/**
	* Returns the numeric index associated with this Key. This
	* is useful for use in switch statements and quick lookups
	* of the setting of a particular key.
	*/
	public final int getIndex() {
	return index;
	}

	/**
	* Returns a string representation of this Value.
	*/
	public final String toString() {
	return description;
	}

	/**
	* Returns true if the specified object is a valid Key
	* for this Value.
	*/
	public final boolean isCompatibleKey(Key k) {
	return myKey == k;
	}

	/**
	* The hash code for all SunHints.Value objects will be the same
	* as the system identity code of the object as defined by the
	* System.identityHashCode() method.
	*/
	public final int hashCode() {
	return System.identityHashCode(this);
	}

	/**
	* The equals method for all SunHints.Value objects will return
	* the same result as the equality operator '=='.
	*/
	public final boolean equals(Object o) {
	return this == o;
	}
	}

	private static final int NUM_KEYS = 10;
	private static final int VALS_PER_KEY = 8;

	/**
	* Rendering hint key and values
	*/
	@Native public static final int INTKEY_RENDERING = 0;
	@Native public static final int INTVAL_RENDER_DEFAULT = 0;
	@Native public static final int INTVAL_RENDER_SPEED = 1;
	@Native public static final int INTVAL_RENDER_QUALITY = 2;

	/**
	* Antialiasing hint key and values
	*/
	@Native public static final int INTKEY_ANTIALIASING = 1;
	@Native public static final int INTVAL_ANTIALIAS_DEFAULT = 0;
	@Native public static final int INTVAL_ANTIALIAS_OFF = 1;
	@Native public static final int INTVAL_ANTIALIAS_ON = 2;

	/**
	* Text antialiasing hint key and values
	*/
	@Native public static final int INTKEY_TEXT_ANTIALIASING = 2;
	@Native public static final int INTVAL_TEXT_ANTIALIAS_DEFAULT = 0;
	@Native public static final int INTVAL_TEXT_ANTIALIAS_OFF = 1;
	@Native public static final int INTVAL_TEXT_ANTIALIAS_ON = 2;
	@Native public static final int INTVAL_TEXT_ANTIALIAS_GASP = 3;
	@Native public static final int INTVAL_TEXT_ANTIALIAS_LCD_HRGB = 4;
	@Native public static final int INTVAL_TEXT_ANTIALIAS_LCD_HBGR = 5;
	@Native public static final int INTVAL_TEXT_ANTIALIAS_LCD_VRGB = 6;
	@Native public static final int INTVAL_TEXT_ANTIALIAS_LCD_VBGR = 7;

	/**
	* Font fractional metrics hint key and values
	*/
	@Native public static final int INTKEY_FRACTIONALMETRICS = 3;
	@Native public static final int INTVAL_FRACTIONALMETRICS_DEFAULT = 0;
	@Native public static final int INTVAL_FRACTIONALMETRICS_OFF = 1;
	@Native public static final int INTVAL_FRACTIONALMETRICS_ON = 2;

	/**
	* Dithering hint key and values
	*/
	@Native public static final int INTKEY_DITHERING = 4;
	@Native public static final int INTVAL_DITHER_DEFAULT = 0;
	@Native public static final int INTVAL_DITHER_DISABLE = 1;
	@Native public static final int INTVAL_DITHER_ENABLE = 2;

	/**
	* Interpolation hint key and values
	*/
	@Native public static final int INTKEY_INTERPOLATION = 5;
	@Native public static final int INTVAL_INTERPOLATION_NEAREST_NEIGHBOR = 0;
	@Native public static final int INTVAL_INTERPOLATION_BILINEAR = 1;
	@Native public static final int INTVAL_INTERPOLATION_BICUBIC = 2;

	/**
	* Alpha interpolation hint key and values
	*/
	@Native public static final int INTKEY_ALPHA_INTERPOLATION = 6;
	@Native public static final int INTVAL_ALPHA_INTERPOLATION_DEFAULT = 0;
	@Native public static final int INTVAL_ALPHA_INTERPOLATION_SPEED = 1;
	@Native public static final int INTVAL_ALPHA_INTERPOLATION_QUALITY = 2;

	/**
	* Color rendering hint key and values
	*/
	@Native public static final int INTKEY_COLOR_RENDERING = 7;
	@Native public static final int INTVAL_COLOR_RENDER_DEFAULT = 0;
	@Native public static final int INTVAL_COLOR_RENDER_SPEED = 1;
	@Native public static final int INTVAL_COLOR_RENDER_QUALITY = 2;

	/**
	* Stroke normalization control hint key and values
	*/
	@Native public static final int INTKEY_STROKE_CONTROL = 8;
	@Native public static final int INTVAL_STROKE_DEFAULT = 0;
	@Native public static final int INTVAL_STROKE_NORMALIZE = 1;
	@Native public static final int INTVAL_STROKE_PURE = 2;

	/**
	* Image scaling hint key and values
	*/
	@Native public static final int INTKEY_RESOLUTION_VARIANT = 9;
	@Native public static final int INTVAL_RESOLUTION_VARIANT_DEFAULT = 0;
	@Native public static final int INTVAL_RESOLUTION_VARIANT_OFF = 1;
	@Native public static final int INTVAL_RESOLUTION_VARIANT_ON = 2;
	/**
	* LCD text contrast control hint key.
	* Value is "100" to make discontiguous with the others which
	* are all enumerative and are of a different class.
	*/
	@Native public static final int INTKEY_AATEXT_LCD_CONTRAST = 100;

	/**
	* Rendering hint key and value objects
	*/
	public static final Key KEY_RENDERING =
	new SunHints.Key(SunHints.INTKEY_RENDERING,
	"Global rendering quality key");
	public static final Object VALUE_RENDER_SPEED =
	new SunHints.Value(KEY_RENDERING,
	SunHints.INTVAL_RENDER_SPEED,
	"Fastest rendering methods");
	public static final Object VALUE_RENDER_QUALITY =
	new SunHints.Value(KEY_RENDERING,
	SunHints.INTVAL_RENDER_QUALITY,
	"Highest quality rendering methods");
	public static final Object VALUE_RENDER_DEFAULT =
	new SunHints.Value(KEY_RENDERING,
	SunHints.INTVAL_RENDER_DEFAULT,
	"Default rendering methods");

	/**
	* Antialiasing hint key and value objects
	*/
	public static final Key KEY_ANTIALIASING =
	new SunHints.Key(SunHints.INTKEY_ANTIALIASING,
	"Global antialiasing enable key");
	public static final Object VALUE_ANTIALIAS_ON =
	new SunHints.Value(KEY_ANTIALIASING,
	SunHints.INTVAL_ANTIALIAS_ON,
	"Antialiased rendering mode");
	public static final Object VALUE_ANTIALIAS_OFF =
	new SunHints.Value(KEY_ANTIALIASING,
	SunHints.INTVAL_ANTIALIAS_OFF,
	"Nonantialiased rendering mode");
	public static final Object VALUE_ANTIALIAS_DEFAULT =
	new SunHints.Value(KEY_ANTIALIASING,
	SunHints.INTVAL_ANTIALIAS_DEFAULT,
	"Default antialiasing rendering mode");

	/**
	* Text antialiasing hint key and value objects
	*/
	public static final Key KEY_TEXT_ANTIALIASING =
	new SunHints.Key(SunHints.INTKEY_TEXT_ANTIALIASING,
	"Text-specific antialiasing enable key");
	public static final Object VALUE_TEXT_ANTIALIAS_ON =
	new SunHints.Value(KEY_TEXT_ANTIALIASING,
	SunHints.INTVAL_TEXT_ANTIALIAS_ON,
	"Antialiased text mode");
	public static final Object VALUE_TEXT_ANTIALIAS_OFF =
	new SunHints.Value(KEY_TEXT_ANTIALIASING,
	SunHints.INTVAL_TEXT_ANTIALIAS_OFF,
	"Nonantialiased text mode");
	public static final Object VALUE_TEXT_ANTIALIAS_DEFAULT =
	new SunHints.Value(KEY_TEXT_ANTIALIASING,
	SunHints.INTVAL_TEXT_ANTIALIAS_DEFAULT,
	"Default antialiasing text mode");
	public static final Object VALUE_TEXT_ANTIALIAS_GASP =
	new SunHints.Value(KEY_TEXT_ANTIALIASING,
	SunHints.INTVAL_TEXT_ANTIALIAS_GASP,
	"gasp antialiasing text mode");
	public static final Object VALUE_TEXT_ANTIALIAS_LCD_HRGB =
	new SunHints.Value(KEY_TEXT_ANTIALIASING,
	SunHints.INTVAL_TEXT_ANTIALIAS_LCD_HRGB,
	"LCD HRGB antialiasing text mode");
	public static final Object VALUE_TEXT_ANTIALIAS_LCD_HBGR =
	new SunHints.Value(KEY_TEXT_ANTIALIASING,
	SunHints.INTVAL_TEXT_ANTIALIAS_LCD_HBGR,
	"LCD HBGR antialiasing text mode");
	public static final Object VALUE_TEXT_ANTIALIAS_LCD_VRGB =
	new SunHints.Value(KEY_TEXT_ANTIALIASING,
	SunHints.INTVAL_TEXT_ANTIALIAS_LCD_VRGB,
	"LCD VRGB antialiasing text mode");
	public static final Object VALUE_TEXT_ANTIALIAS_LCD_VBGR =
	new SunHints.Value(KEY_TEXT_ANTIALIASING,
	SunHints.INTVAL_TEXT_ANTIALIAS_LCD_VBGR,
	"LCD VBGR antialiasing text mode");

	/**
	* Font fractional metrics hint key and value objects
	*/
	public static final Key KEY_FRACTIONALMETRICS =
	new SunHints.Key(SunHints.INTKEY_FRACTIONALMETRICS,
	"Fractional metrics enable key");
	public static final Object VALUE_FRACTIONALMETRICS_ON =
	new SunHints.Value(KEY_FRACTIONALMETRICS,
	SunHints.INTVAL_FRACTIONALMETRICS_ON,
	"Fractional text metrics mode");
	public static final Object VALUE_FRACTIONALMETRICS_OFF =
	new SunHints.Value(KEY_FRACTIONALMETRICS,
	SunHints.INTVAL_FRACTIONALMETRICS_OFF,
	"Integer text metrics mode");
	public static final Object VALUE_FRACTIONALMETRICS_DEFAULT =
	new SunHints.Value(KEY_FRACTIONALMETRICS,
	SunHints.INTVAL_FRACTIONALMETRICS_DEFAULT,
	"Default fractional text metrics mode");

	/**
	* Dithering hint key and value objects
	*/
	public static final Key KEY_DITHERING =
	new SunHints.Key(SunHints.INTKEY_DITHERING,
	"Dithering quality key");
	public static final Object VALUE_DITHER_ENABLE =
	new SunHints.Value(KEY_DITHERING,
	SunHints.INTVAL_DITHER_ENABLE,
	"Dithered rendering mode");
	public static final Object VALUE_DITHER_DISABLE =
	new SunHints.Value(KEY_DITHERING,
	SunHints.INTVAL_DITHER_DISABLE,
	"Nondithered rendering mode");
	public static final Object VALUE_DITHER_DEFAULT =
	new SunHints.Value(KEY_DITHERING,
	SunHints.INTVAL_DITHER_DEFAULT,
	"Default dithering mode");

	/**
	* Interpolation hint key and value objects
	*/
	public static final Key KEY_INTERPOLATION =
	new SunHints.Key(SunHints.INTKEY_INTERPOLATION,
	"Image interpolation method key");
	public static final Object VALUE_INTERPOLATION_NEAREST_NEIGHBOR =
	new SunHints.Value(KEY_INTERPOLATION,
	SunHints.INTVAL_INTERPOLATION_NEAREST_NEIGHBOR,
	"Nearest Neighbor image interpolation mode");
	public static final Object VALUE_INTERPOLATION_BILINEAR =
	new SunHints.Value(KEY_INTERPOLATION,
	SunHints.INTVAL_INTERPOLATION_BILINEAR,
	"Bilinear image interpolation mode");
	public static final Object VALUE_INTERPOLATION_BICUBIC =
	new SunHints.Value(KEY_INTERPOLATION,
	SunHints.INTVAL_INTERPOLATION_BICUBIC,
	"Bicubic image interpolation mode");

	/**
	* Alpha interpolation hint key and value objects
	*/
	public static final Key KEY_ALPHA_INTERPOLATION =
	new SunHints.Key(SunHints.INTKEY_ALPHA_INTERPOLATION,
	"Alpha blending interpolation method key");
	public static final Object VALUE_ALPHA_INTERPOLATION_SPEED =
	new SunHints.Value(KEY_ALPHA_INTERPOLATION,
	SunHints.INTVAL_ALPHA_INTERPOLATION_SPEED,
	"Fastest alpha blending methods");
	public static final Object VALUE_ALPHA_INTERPOLATION_QUALITY =
	new SunHints.Value(KEY_ALPHA_INTERPOLATION,
	SunHints.INTVAL_ALPHA_INTERPOLATION_QUALITY,
	"Highest quality alpha blending methods");
	public static final Object VALUE_ALPHA_INTERPOLATION_DEFAULT =
	new SunHints.Value(KEY_ALPHA_INTERPOLATION,
	SunHints.INTVAL_ALPHA_INTERPOLATION_DEFAULT,
	"Default alpha blending methods");

	/**
	* Color rendering hint key and value objects
	*/
	public static final Key KEY_COLOR_RENDERING =
	new SunHints.Key(SunHints.INTKEY_COLOR_RENDERING,
	"Color rendering quality key");
	public static final Object VALUE_COLOR_RENDER_SPEED =
	new SunHints.Value(KEY_COLOR_RENDERING,
	SunHints.INTVAL_COLOR_RENDER_SPEED,
	"Fastest color rendering mode");
	public static final Object VALUE_COLOR_RENDER_QUALITY =
	new SunHints.Value(KEY_COLOR_RENDERING,
	SunHints.INTVAL_COLOR_RENDER_QUALITY,
	"Highest quality color rendering mode");
	public static final Object VALUE_COLOR_RENDER_DEFAULT =
	new SunHints.Value(KEY_COLOR_RENDERING,
	SunHints.INTVAL_COLOR_RENDER_DEFAULT,
	"Default color rendering mode");

	/**
	* Stroke normalization control hint key and value objects
	*/
	public static final Key KEY_STROKE_CONTROL =
	new SunHints.Key(SunHints.INTKEY_STROKE_CONTROL,
	"Stroke normalization control key");
	public static final Object VALUE_STROKE_DEFAULT =
	new SunHints.Value(KEY_STROKE_CONTROL,
	SunHints.INTVAL_STROKE_DEFAULT,
	"Default stroke normalization");
	public static final Object VALUE_STROKE_NORMALIZE =
	new SunHints.Value(KEY_STROKE_CONTROL,
	SunHints.INTVAL_STROKE_NORMALIZE,
	"Normalize strokes for consistent rendering");
	public static final Object VALUE_STROKE_PURE =
	new SunHints.Value(KEY_STROKE_CONTROL,
	SunHints.INTVAL_STROKE_PURE,
	"Pure stroke conversion for accurate paths");

	/**
	* Image resolution variant hint key and value objects
	*/
	public static final Key KEY_RESOLUTION_VARIANT =
	new SunHints.Key(SunHints.INTKEY_RESOLUTION_VARIANT,
	"Global image resolution variant key");
	public static final Object VALUE_RESOLUTION_VARIANT_DEFAULT =
	new SunHints.Value(KEY_RESOLUTION_VARIANT,
	SunHints.INTVAL_RESOLUTION_VARIANT_DEFAULT,
	"Choose image resolutions based on a default heuristic");
	public static final Object VALUE_RESOLUTION_VARIANT_OFF =
	new SunHints.Value(KEY_RESOLUTION_VARIANT,
	SunHints.INTVAL_RESOLUTION_VARIANT_OFF,
	"Use only the standard resolution of an image");
	public static final Object VALUE_RESOLUTION_VARIANT_ON =
	new SunHints.Value(KEY_RESOLUTION_VARIANT,
	SunHints.INTVAL_RESOLUTION_VARIANT_ON,
	"Always use resolution-specific variants of images");

	public static class LCDContrastKey extends Key {

	public LCDContrastKey(int privatekey, String description) {
	super(privatekey, description);
	}

	/**
	* Returns true if the specified object is a valid value
	* for this Key. The allowable range is 100 to 250.
	*/
	public final boolean isCompatibleValue(Object val) {
	if (val instanceof Integer) {
	int ival = ((Integer)val).intValue();
	return ival >= 100 && ival <= 250;
	}
	return false;
	}

	}

	/**
	* LCD text contrast hint key
	*/
	public static final RenderingHints.Key
	KEY_TEXT_ANTIALIAS_LCD_CONTRAST =
	new LCDContrastKey(SunHints.INTKEY_AATEXT_LCD_CONTRAST,
	"Text-specific LCD contrast key");
	}

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