JDK8/Java8源码在线阅读
/*
* Copyright (c) 2004, 2008, 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.
*
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/*
*
* (C) Copyright IBM Corp. 2005 - All Rights Reserved
*
* The original version of this source code and documentation is
* copyrighted and owned by IBM. These materials are provided
* under terms of a License Agreement between IBM and Sun.
* This technology is protected by multiple US and International
* patents. This notice and attribution to IBM may not be removed.
*/
package sun.font;
import static sun.font.EAttribute.*;
import static java.lang.Math.*;
import java.awt.Font;
import java.awt.Paint;
import java.awt.Toolkit;
import java.awt.font.GraphicAttribute;
import java.awt.font.NumericShaper;
import java.awt.font.TextAttribute;
import java.awt.font.TransformAttribute;
import java.awt.geom.AffineTransform;
import java.awt.geom.NoninvertibleTransformException;
import java.awt.geom.Point2D;
import java.awt.im.InputMethodHighlight;
import java.io.Serializable;
import java.text.Annotation;
import java.text.AttributedCharacterIterator.Attribute;
import java.util.Map;
import java.util.HashMap;
import java.util.Hashtable;
public final class AttributeValues implements Cloneable {
private int defined;
private int nondefault;
private String family = "Default";
private float weight = 1f;
private float width = 1f;
private float posture; // 0f
private float size = 12f;
private float tracking; // 0f
private NumericShaper numericShaping; // null
private AffineTransform transform; // null == identity
private GraphicAttribute charReplacement; // null
private Paint foreground; // null
private Paint background; // null
private float justification = 1f;
private Object imHighlight; // null
// (can be either Attribute wrapping IMH, or IMH itself
private Font font; // here for completeness, don't actually use
private byte imUnderline = -1; // same default as underline
private byte superscript; // 0
private byte underline = -1; // arrgh, value for ON is 0
private byte runDirection = -2; // BIDI.DIRECTION_DEFAULT_LEFT_TO_RIGHT
private byte bidiEmbedding; // 0
private byte kerning; // 0
private byte ligatures; // 0
private boolean strikethrough; // false
private boolean swapColors; // false
private AffineTransform baselineTransform; // derived from transform
private AffineTransform charTransform; // derived from transform
private static final AttributeValues DEFAULT = new AttributeValues();
// type-specific API
public String getFamily() { return family; }
public void setFamily(String f) { this.family = f; update(EFAMILY); }
public float getWeight() { return weight; }
public void setWeight(float f) { this.weight = f; update(EWEIGHT); }
public float getWidth() { return width; }
public void setWidth(float f) { this.width = f; update(EWIDTH); }
public float getPosture() { return posture; }
public void setPosture(float f) { this.posture = f; update(EPOSTURE); }
public float getSize() { return size; }
public void setSize(float f) { this.size = f; update(ESIZE); }
public AffineTransform getTransform() { return transform; }
public void setTransform(AffineTransform f) {
this.transform = (f == null || f.isIdentity())
? DEFAULT.transform
: new AffineTransform(f);
updateDerivedTransforms();
update(ETRANSFORM);
}
public void setTransform(TransformAttribute f) {
this.transform = (f == null || f.isIdentity())
? DEFAULT.transform
: f.getTransform();
updateDerivedTransforms();
update(ETRANSFORM);
}
public int getSuperscript() { return superscript; }
public void setSuperscript(int f) {
this.superscript = (byte)f; update(ESUPERSCRIPT); }
public Font getFont() { return font; }
public void setFont(Font f) { this.font = f; update(EFONT); }
public GraphicAttribute getCharReplacement() { return charReplacement; }
public void setCharReplacement(GraphicAttribute f) {
this.charReplacement = f; update(ECHAR_REPLACEMENT); }
public Paint getForeground() { return foreground; }
public void setForeground(Paint f) {
this.foreground = f; update(EFOREGROUND); }
public Paint getBackground() { return background; }
public void setBackground(Paint f) {
this.background = f; update(EBACKGROUND); }
public int getUnderline() { return underline; }
public void setUnderline(int f) {
this.underline = (byte)f; update(EUNDERLINE); }
public boolean getStrikethrough() { return strikethrough; }
public void setStrikethrough(boolean f) {
this.strikethrough = f; update(ESTRIKETHROUGH); }
public int getRunDirection() { return runDirection; }
public void setRunDirection(int f) {
this.runDirection = (byte)f; update(ERUN_DIRECTION); }
public int getBidiEmbedding() { return bidiEmbedding; }
public void setBidiEmbedding(int f) {
this.bidiEmbedding = (byte)f; update(EBIDI_EMBEDDING); }
public float getJustification() { return justification; }
public void setJustification(float f) {
this.justification = f; update(EJUSTIFICATION); }
public Object getInputMethodHighlight() { return imHighlight; }
public void setInputMethodHighlight(Annotation f) {
this.imHighlight = f; update(EINPUT_METHOD_HIGHLIGHT); }
public void setInputMethodHighlight(InputMethodHighlight f) {
this.imHighlight = f; update(EINPUT_METHOD_HIGHLIGHT); }
public int getInputMethodUnderline() { return imUnderline; }
public void setInputMethodUnderline(int f) {
this.imUnderline = (byte)f; update(EINPUT_METHOD_UNDERLINE); }
public boolean getSwapColors() { return swapColors; }
public void setSwapColors(boolean f) {
this.swapColors = f; update(ESWAP_COLORS); }
public NumericShaper getNumericShaping() { return numericShaping; }
public void setNumericShaping(NumericShaper f) {
this.numericShaping = f; update(ENUMERIC_SHAPING); }
public int getKerning() { return kerning; }
public void setKerning(int f) {
this.kerning = (byte)f; update(EKERNING); }
public float getTracking() { return tracking; }
public void setTracking(float f) {
this.tracking = (byte)f; update(ETRACKING); }
public int getLigatures() { return ligatures; }
public void setLigatures(int f) {
this.ligatures = (byte)f; update(ELIGATURES); }
public AffineTransform getBaselineTransform() { return baselineTransform; }
public AffineTransform getCharTransform() { return charTransform; }
// mask api
public static int getMask(EAttribute att) {
return att.mask;
}
public static int getMask(EAttribute ... atts) {
int mask = 0;
for (EAttribute a: atts) {
mask |= a.mask;
}
return mask;
}
public static final int MASK_ALL =
getMask(EAttribute.class.getEnumConstants());
public void unsetDefault() {
defined &= nondefault;
}
public void defineAll(int mask) {
defined |= mask;
if ((defined & EBASELINE_TRANSFORM.mask) != 0) {
throw new InternalError("can't define derived attribute");
}
}
public boolean allDefined(int mask) {
return (defined & mask) == mask;
}
public boolean anyDefined(int mask) {
return (defined & mask) != 0;
}
public boolean anyNonDefault(int mask) {
return (nondefault & mask) != 0;
}
// generic EAttribute API
public boolean isDefined(EAttribute a) {
return (defined & a.mask) != 0;
}
public boolean isNonDefault(EAttribute a) {
return (nondefault & a.mask) != 0;
}
public void setDefault(EAttribute a) {
if (a.att == null) {
throw new InternalError("can't set default derived attribute: " + a);
}
i_set(a, DEFAULT);
defined |= a.mask;
nondefault &= ~a.mask;
}
public void unset(EAttribute a) {
if (a.att == null) {
throw new InternalError("can't unset derived attribute: " + a);
}
i_set(a, DEFAULT);
defined &= ~a.mask;
nondefault &= ~a.mask;
}
public void set(EAttribute a, AttributeValues src) {
if (a.att == null) {
throw new InternalError("can't set derived attribute: " + a);
}
if (src == null || src == DEFAULT) {
setDefault(a);
} else {
if ((src.defined & a.mask) != 0) {
i_set(a, src);
update(a);
}
}
}
public void set(EAttribute a, Object o) {
if (a.att == null) {
throw new InternalError("can't set derived attribute: " + a);
}
if (o != null) {
try {
i_set(a, o);
update(a);
return;
} catch (Exception e) {
}
}
setDefault(a);
}
public Object get(EAttribute a) {
if (a.att == null) {
throw new InternalError("can't get derived attribute: " + a);
}
if ((nondefault & a.mask) != 0) {
return i_get(a);
}
return null;
}
// merging
public AttributeValues merge(Map<? extends Attribute, ?>map) {
return merge(map, MASK_ALL);
}
public AttributeValues merge(Map<? extends Attribute, ?>map,
int mask) {
if (map instanceof AttributeMap &&
((AttributeMap) map).getValues() != null) {
merge(((AttributeMap)map).getValues(), mask);
} else if (map != null && !map.isEmpty()) {
for (Map.Entry<? extends Attribute, ?> e: map.entrySet()) {
try {
EAttribute ea = EAttribute.forAttribute(e.getKey());
if (ea!= null && (mask & ea.mask) != 0) {
set(ea, e.getValue());
}
} catch (ClassCastException cce) {
// IGNORED
}
}
}
return this;
}
public AttributeValues merge(AttributeValues src) {
return merge(src, MASK_ALL);
}
public AttributeValues merge(AttributeValues src, int mask) {
int m = mask & src.defined;
for (EAttribute ea: EAttribute.atts) {
if (m == 0) {
break;
}
if ((m & ea.mask) != 0) {
m &= ~ea.mask;
i_set(ea, src);
update(ea);
}
}
return this;
}
// creation API
public static AttributeValues fromMap(Map<? extends Attribute, ?> map) {
return fromMap(map, MASK_ALL);
}
public static AttributeValues fromMap(Map<? extends Attribute, ?> map,
int mask) {
return new AttributeValues().merge(map, mask);
}
public Map<TextAttribute, Object> toMap(Map<TextAttribute, Object> fill) {
if (fill == null) {
fill = new HashMap<TextAttribute, Object>();
}
for (int m = defined, i = 0; m != 0; ++i) {
EAttribute ea = EAttribute.atts[i];
if ((m & ea.mask) != 0) {
m &= ~ea.mask;
fill.put(ea.att, get(ea));
}
}
return fill;
}
// key must be serializable, so use String, not Object
private static final String DEFINED_KEY =
"sun.font.attributevalues.defined_key";
public static boolean is16Hashtable(Hashtable<Object, Object> ht) {
return ht.containsKey(DEFINED_KEY);
}
public static AttributeValues
fromSerializableHashtable(Hashtable<Object, Object> ht)
{
AttributeValues result = new AttributeValues();
if (ht != null && !ht.isEmpty()) {
for (Map.Entry<Object, Object> e: ht.entrySet()) {
Object key = e.getKey();
Object val = e.getValue();
if (key.equals(DEFINED_KEY)) {
result.defineAll(((Integer)val).intValue());
} else {
try {
EAttribute ea =
EAttribute.forAttribute((Attribute)key);
if (ea != null) {
result.set(ea, val);
}
}
catch (ClassCastException ex) {
}
}
}
}
return result;
}
public Hashtable<Object, Object> toSerializableHashtable() {
Hashtable ht = new Hashtable();
int hashkey = defined;
for (int m = defined, i = 0; m != 0; ++i) {
EAttribute ea = EAttribute.atts[i];
if ((m & ea.mask) != 0) {
m &= ~ea.mask;
Object o = get(ea);
if (o == null) {
// hashkey will handle it
} else if (o instanceof Serializable) { // check all...
ht.put(ea.att, o);
} else {
hashkey &= ~ea.mask;
}
}
}
ht.put(DEFINED_KEY, Integer.valueOf(hashkey));
return ht;
}
// boilerplate
public int hashCode() {
return defined << 8 ^ nondefault;
}
public boolean equals(Object rhs) {
try {
return equals((AttributeValues)rhs);
}
catch (ClassCastException e) {
}
return false;
}
public boolean equals(AttributeValues rhs) {
// test in order of most likely to differ and easiest to compare
// also assumes we're generally calling this only if family,
// size, weight, posture are the same
if (rhs == null) return false;
if (rhs == this) return true;
return defined == rhs.defined
&& nondefault == rhs.nondefault
&& underline == rhs.underline
&& strikethrough == rhs.strikethrough
&& superscript == rhs.superscript
&& width == rhs.width
&& kerning == rhs.kerning
&& tracking == rhs.tracking
&& ligatures == rhs.ligatures
&& runDirection == rhs.runDirection
&& bidiEmbedding == rhs.bidiEmbedding
&& swapColors == rhs.swapColors
&& equals(transform, rhs.transform)
&& equals(foreground, rhs.foreground)
&& equals(background, rhs.background)
&& equals(numericShaping, rhs.numericShaping)
&& equals(justification, rhs.justification)
&& equals(charReplacement, rhs.charReplacement)
&& size == rhs.size
&& weight == rhs.weight
&& posture == rhs.posture
&& equals(family, rhs.family)
&& equals(font, rhs.font)
&& imUnderline == rhs.imUnderline
&& equals(imHighlight, rhs.imHighlight);
}
public AttributeValues clone() {
try {
AttributeValues result = (AttributeValues)super.clone();
if (transform != null) { // AffineTransform is mutable
result.transform = new AffineTransform(transform);
result.updateDerivedTransforms();
}
// if transform is null, derived transforms are null
// so there's nothing to do
return result;
}
catch (CloneNotSupportedException e) {
// never happens
return null;
}
}
public String toString() {
StringBuilder b = new StringBuilder();
b.append('{');
for (int m = defined, i = 0; m != 0; ++i) {
EAttribute ea = EAttribute.atts[i];
if ((m & ea.mask) != 0) {
m &= ~ea.mask;
if (b.length() > 1) {
b.append(", ");
}
b.append(ea);
b.append('=');
switch (ea) {
case EFAMILY: b.append('"');
b.append(family);
b.append('"'); break;
case EWEIGHT: b.append(weight); break;
case EWIDTH: b.append(width); break;
case EPOSTURE: b.append(posture); break;
case ESIZE: b.append(size); break;
case ETRANSFORM: b.append(transform); break;
case ESUPERSCRIPT: b.append(superscript); break;
case EFONT: b.append(font); break;
case ECHAR_REPLACEMENT: b.append(charReplacement); break;
case EFOREGROUND: b.append(foreground); break;
case EBACKGROUND: b.append(background); break;
case EUNDERLINE: b.append(underline); break;
case ESTRIKETHROUGH: b.append(strikethrough); break;
case ERUN_DIRECTION: b.append(runDirection); break;
case EBIDI_EMBEDDING: b.append(bidiEmbedding); break;
case EJUSTIFICATION: b.append(justification); break;
case EINPUT_METHOD_HIGHLIGHT: b.append(imHighlight); break;
case EINPUT_METHOD_UNDERLINE: b.append(imUnderline); break;
case ESWAP_COLORS: b.append(swapColors); break;
case ENUMERIC_SHAPING: b.append(numericShaping); break;
case EKERNING: b.append(kerning); break;
case ELIGATURES: b.append(ligatures); break;
case ETRACKING: b.append(tracking); break;
default: throw new InternalError();
}
if ((nondefault & ea.mask) == 0) {
b.append('*');
}
}
}
b.append("[btx=" + baselineTransform + ", ctx=" + charTransform + "]");
b.append('}');
return b.toString();
}
// internal utilities
private static boolean equals(Object lhs, Object rhs) {
return lhs == null ? rhs == null : lhs.equals(rhs);
}
private void update(EAttribute a) {
defined |= a.mask;
if (i_validate(a)) {
if (i_equals(a, DEFAULT)) {
nondefault &= ~a.mask;
} else {
nondefault |= a.mask;
}
} else {
setDefault(a);
}
}
// dispatch
private void i_set(EAttribute a, AttributeValues src) {
switch (a) {
case EFAMILY: family = src.family; break;
case EWEIGHT: weight = src.weight; break;
case EWIDTH: width = src.width; break;
case EPOSTURE: posture = src.posture; break;
case ESIZE: size = src.size; break;
case ETRANSFORM: transform = src.transform; updateDerivedTransforms(); break;
case ESUPERSCRIPT: superscript = src.superscript; break;
case EFONT: font = src.font; break;
case ECHAR_REPLACEMENT: charReplacement = src.charReplacement; break;
case EFOREGROUND: foreground = src.foreground; break;
case EBACKGROUND: background = src.background; break;
case EUNDERLINE: underline = src.underline; break;
case ESTRIKETHROUGH: strikethrough = src.strikethrough; break;
case ERUN_DIRECTION: runDirection = src.runDirection; break;
case EBIDI_EMBEDDING: bidiEmbedding = src.bidiEmbedding; break;
case EJUSTIFICATION: justification = src.justification; break;
case EINPUT_METHOD_HIGHLIGHT: imHighlight = src.imHighlight; break;
case EINPUT_METHOD_UNDERLINE: imUnderline = src.imUnderline; break;
case ESWAP_COLORS: swapColors = src.swapColors; break;
case ENUMERIC_SHAPING: numericShaping = src.numericShaping; break;
case EKERNING: kerning = src.kerning; break;
case ELIGATURES: ligatures = src.ligatures; break;
case ETRACKING: tracking = src.tracking; break;
default: throw new InternalError();
}
}
private boolean i_equals(EAttribute a, AttributeValues src) {
switch (a) {
case EFAMILY: return equals(family, src.family);
case EWEIGHT: return weight == src.weight;
case EWIDTH: return width == src.width;
case EPOSTURE: return posture == src.posture;
case ESIZE: return size == src.size;
case ETRANSFORM: return equals(transform, src.transform);
case ESUPERSCRIPT: return superscript == src.superscript;
case EFONT: return equals(font, src.font);
case ECHAR_REPLACEMENT: return equals(charReplacement, src.charReplacement);
case EFOREGROUND: return equals(foreground, src.foreground);
case EBACKGROUND: return equals(background, src.background);
case EUNDERLINE: return underline == src.underline;
case ESTRIKETHROUGH: return strikethrough == src.strikethrough;
case ERUN_DIRECTION: return runDirection == src.runDirection;
case EBIDI_EMBEDDING: return bidiEmbedding == src.bidiEmbedding;
case EJUSTIFICATION: return justification == src.justification;
case EINPUT_METHOD_HIGHLIGHT: return equals(imHighlight, src.imHighlight);
case EINPUT_METHOD_UNDERLINE: return imUnderline == src.imUnderline;
case ESWAP_COLORS: return swapColors == src.swapColors;
case ENUMERIC_SHAPING: return equals(numericShaping, src.numericShaping);
case EKERNING: return kerning == src.kerning;
case ELIGATURES: return ligatures == src.ligatures;
case ETRACKING: return tracking == src.tracking;
default: throw new InternalError();
}
}
private void i_set(EAttribute a, Object o) {
switch (a) {
case EFAMILY: family = ((String)o).trim(); break;
case EWEIGHT: weight = ((Number)o).floatValue(); break;
case EWIDTH: width = ((Number)o).floatValue(); break;
case EPOSTURE: posture = ((Number)o).floatValue(); break;
case ESIZE: size = ((Number)o).floatValue(); break;
case ETRANSFORM: {
if (o instanceof TransformAttribute) {
TransformAttribute ta = (TransformAttribute)o;
if (ta.isIdentity()) {
transform = null;
} else {
transform = ta.getTransform();
}
} else {
transform = new AffineTransform((AffineTransform)o);
}
updateDerivedTransforms();
} break;
case ESUPERSCRIPT: superscript = (byte)((Integer)o).intValue(); break;
case EFONT: font = (Font)o; break;
case ECHAR_REPLACEMENT: charReplacement = (GraphicAttribute)o; break;
case EFOREGROUND: foreground = (Paint)o; break;
case EBACKGROUND: background = (Paint)o; break;
case EUNDERLINE: underline = (byte)((Integer)o).intValue(); break;
case ESTRIKETHROUGH: strikethrough = ((Boolean)o).booleanValue(); break;
case ERUN_DIRECTION: {
if (o instanceof Boolean) {
runDirection = (byte)(TextAttribute.RUN_DIRECTION_LTR.equals(o) ? 0 : 1);
} else {
runDirection = (byte)((Integer)o).intValue();
}
} break;
case EBIDI_EMBEDDING: bidiEmbedding = (byte)((Integer)o).intValue(); break;
case EJUSTIFICATION: justification = ((Number)o).floatValue(); break;
case EINPUT_METHOD_HIGHLIGHT: {
if (o instanceof Annotation) {
Annotation at = (Annotation)o;
imHighlight = (InputMethodHighlight)at.getValue();
} else {
imHighlight = (InputMethodHighlight)o;
}
} break;
case EINPUT_METHOD_UNDERLINE: imUnderline = (byte)((Integer)o).intValue();
break;
case ESWAP_COLORS: swapColors = ((Boolean)o).booleanValue(); break;
case ENUMERIC_SHAPING: numericShaping = (NumericShaper)o; break;
case EKERNING: kerning = (byte)((Integer)o).intValue(); break;
case ELIGATURES: ligatures = (byte)((Integer)o).intValue(); break;
case ETRACKING: tracking = ((Number)o).floatValue(); break;
default: throw new InternalError();
}
}
private Object i_get(EAttribute a) {
switch (a) {
case EFAMILY: return family;
case EWEIGHT: return Float.valueOf(weight);
case EWIDTH: return Float.valueOf(width);
case EPOSTURE: return Float.valueOf(posture);
case ESIZE: return Float.valueOf(size);
case ETRANSFORM:
return transform == null
? TransformAttribute.IDENTITY
: new TransformAttribute(transform);
case ESUPERSCRIPT: return Integer.valueOf(superscript);
case EFONT: return font;
case ECHAR_REPLACEMENT: return charReplacement;
case EFOREGROUND: return foreground;
case EBACKGROUND: return background;
case EUNDERLINE: return Integer.valueOf(underline);
case ESTRIKETHROUGH: return Boolean.valueOf(strikethrough);
case ERUN_DIRECTION: {
switch (runDirection) {
// todo: figure out a way to indicate this value
// case -1: return Integer.valueOf(runDirection);
case 0: return TextAttribute.RUN_DIRECTION_LTR;
case 1: return TextAttribute.RUN_DIRECTION_RTL;
default: return null;
}
} // not reachable
case EBIDI_EMBEDDING: return Integer.valueOf(bidiEmbedding);
case EJUSTIFICATION: return Float.valueOf(justification);
case EINPUT_METHOD_HIGHLIGHT: return imHighlight;
case EINPUT_METHOD_UNDERLINE: return Integer.valueOf(imUnderline);
case ESWAP_COLORS: return Boolean.valueOf(swapColors);
case ENUMERIC_SHAPING: return numericShaping;
case EKERNING: return Integer.valueOf(kerning);
case ELIGATURES: return Integer.valueOf(ligatures);
case ETRACKING: return Float.valueOf(tracking);
default: throw new InternalError();
}
}
private boolean i_validate(EAttribute a) {
switch (a) {
case EFAMILY: if (family == null || family.length() == 0)
family = DEFAULT.family; return true;
case EWEIGHT: return weight > 0 && weight < 10;
case EWIDTH: return width >= .5f && width < 10;
case EPOSTURE: return posture >= -1 && posture <= 1;
case ESIZE: return size >= 0;
case ETRANSFORM: if (transform != null && transform.isIdentity())
transform = DEFAULT.transform; return true;
case ESUPERSCRIPT: return superscript >= -7 && superscript <= 7;
case EFONT: return true;
case ECHAR_REPLACEMENT: return true;
case EFOREGROUND: return true;
case EBACKGROUND: return true;
case EUNDERLINE: return underline >= -1 && underline < 6;
case ESTRIKETHROUGH: return true;
case ERUN_DIRECTION: return runDirection >= -2 && runDirection <= 1;
case EBIDI_EMBEDDING: return bidiEmbedding >= -61 && bidiEmbedding < 62;
case EJUSTIFICATION: justification = max(0, min (justification, 1));
return true;
case EINPUT_METHOD_HIGHLIGHT: return true;
case EINPUT_METHOD_UNDERLINE: return imUnderline >= -1 && imUnderline < 6;
case ESWAP_COLORS: return true;
case ENUMERIC_SHAPING: return true;
case EKERNING: return kerning >= 0 && kerning <= 1;
case ELIGATURES: return ligatures >= 0 && ligatures <= 1;
case ETRACKING: return tracking >= -1 && tracking <= 10;
default: throw new InternalError("unknown attribute: " + a);
}
}
// Until textlayout is fixed to use AttributeValues, we'll end up
// creating a map from the values for it. This is a compromise between
// creating the whole map and just checking a particular value.
// Plan to remove these.
public static float getJustification(Map<?, ?> map) {
if (map != null) {
if (map instanceof AttributeMap &&
((AttributeMap) map).getValues() != null) {
return ((AttributeMap)map).getValues().justification;
}
Object obj = map.get(TextAttribute.JUSTIFICATION);
if (obj != null && obj instanceof Number) {
return max(0, min(1, ((Number)obj).floatValue()));
}
}
return DEFAULT.justification;
}
public static NumericShaper getNumericShaping(Map<?, ?> map) {
if (map != null) {
if (map instanceof AttributeMap &&
((AttributeMap) map).getValues() != null) {
return ((AttributeMap)map).getValues().numericShaping;
}
Object obj = map.get(TextAttribute.NUMERIC_SHAPING);
if (obj != null && obj instanceof NumericShaper) {
return (NumericShaper)obj;
}
}
return DEFAULT.numericShaping;
}
/**
* If this has an imHighlight, create copy of this with those attributes
* applied to it. Otherwise return this unchanged.
*/
public AttributeValues applyIMHighlight() {
if (imHighlight != null) {
InputMethodHighlight hl = null;
if (imHighlight instanceof InputMethodHighlight) {
hl = (InputMethodHighlight)imHighlight;
} else {
hl = (InputMethodHighlight)((Annotation)imHighlight).getValue();
}
Map imStyles = hl.getStyle();
if (imStyles == null) {
Toolkit tk = Toolkit.getDefaultToolkit();
imStyles = tk.mapInputMethodHighlight(hl);
}
if (imStyles != null) {
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