Quelle SunHints.java
Sprache: JAVA
/*
* 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 static synchronized 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_BASE = 1 ;
@Native public static final int INTVAL_RESOLUTION_VARIANT_SIZE_FIT = 2 ;
@Native public static final int INTVAL_RESOLUTION_VARIANT_DPI_FIT = 3 ;
/**
* 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_BASE =
new SunHints.Value(KEY_RESOLUTION_VARIANT,
SunHints.INTVAL_RESOLUTION_VARIANT_BASE,
"Use only the standard resolution of an image" );
public static final Object VALUE_RESOLUTION_VARIANT_SIZE_FIT =
new SunHints.Value(KEY_RESOLUTION_VARIANT,
SunHints.INTVAL_RESOLUTION_VARIANT_SIZE_FIT,
"Choose image resolutions based on the DPI"
+ "of the screen and transform"
+ "in the Graphics2D context" );
public static final Object VALUE_RESOLUTION_VARIANT_DPI_FIT =
new SunHints.Value(KEY_RESOLUTION_VARIANT,
SunHints.INTVAL_RESOLUTION_VARIANT_DPI_FIT,
"Choose image resolutions based only on the DPI"
+ " of the screen" );
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" );
}
Messung V0.5 in Prozent C=94 H=100 G=96
¤ Dauer der Verarbeitung: 0.26 Sekunden
(vorverarbeitet am 2026-09-02)
¤
*© Formatika GbR, Deutschland
2026-08-25
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