java.awt.font
Class NumericShaper
- Serializable
This class handles numeric shaping. A shaper can either be contextual
or not. A non-contextual shaper will always translate ASCII digits
in its input into the target Unicode range. A contextual shaper will
change the target Unicode range depending on the characters it has
previously processed.
static int | ALL_RANGES - Convenience constant representing all the valid Unicode ranges.
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static int | ARABIC - Constant representing the Unicode ARABIC range.
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static int | BENGALI - Constant representing the Unicode BENGALI range.
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static int | DEVANAGARI - Constant representing the Unicode DEVANAGARI range.
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static int | EASTERN_ARABIC - Constant representing the Unicode extended arabic range.
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static int | ETHIOPIC - Constant representing the Unicode ETHIOPIC range.
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static int | EUROPEAN - Constant representing the Unicode EUROPEAN range.
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static int | GUJARATI - Constant representing the Unicode GUJARATI range.
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static int | GURMUKHI - Constant representing the Unicode GURMUKHI range.
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static int | KANNADA - Constant representing the Unicode KANNADA range.
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static int | KHMER - Constant representing the Unicode KHMER range.
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static int | LAO - Constant representing the Unicode LAO range.
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static int | MALAYALAM - Constant representing the Unicode MALAYALAM range.
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static int | MONGOLIAN - Constant representing the Unicode MONGOLIAN range.
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static int | MYANMAR - Constant representing the Unicode MYANMAR range.
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static int | ORIYA - Constant representing the Unicode ORIYA range.
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static int | TAMIL - Constant representing the Unicode TAMIL range.
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static int | TELUGU - Constant representing the Unicode TELUGU range.
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static int | THAI - Constant representing the Unicode THAI range.
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static int | TIBETAN - Constant representing the Unicode TIBETAN range.
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boolean | equals(Object obj)
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static NumericShaper | getContextualShaper(int ranges) - Return a contextual shaper which can shape to any of the indicated
languages.
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static NumericShaper | getContextualShaper(int ranges, int defaultContext) - Return a contextual shaper which can shape to any of the indicated
languages.
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int | getRanges() - Return an integer representing all the languages for which this
shaper will shape.
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static NumericShaper | getShaper(int singleRange) - Return a non-contextual shaper which can shape to a single range.
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int | hashCode()
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boolean | isContextual() - Return true if this shaper is contextual, false if it is not.
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void | shape(char[] text, int start, int count) - Shape the text in the given array.
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void | shape(char[] text, int start, int count, int context) - Shape the given text, using the indicated initial context.
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String | toString()
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clone , equals , extends Object> getClass , finalize , hashCode , notify , notifyAll , toString , wait , wait , wait |
ALL_RANGES
public static final int ALL_RANGES
Convenience constant representing all the valid Unicode ranges.
ARABIC
public static final int ARABIC
Constant representing the Unicode ARABIC range. Shaping done
using this range will translate to the arabic decimal characters.
Use EASTERN_ARABIC if you want to shape to the eastern arabic
(also known as the extended arabic) decimal characters.
BENGALI
public static final int BENGALI
Constant representing the Unicode BENGALI range.
DEVANAGARI
public static final int DEVANAGARI
Constant representing the Unicode DEVANAGARI range.
EASTERN_ARABIC
public static final int EASTERN_ARABIC
Constant representing the Unicode extended arabic range.
In Unicode there are two different sets of arabic digits;
this selects the extended or eastern set.
ETHIOPIC
public static final int ETHIOPIC
Constant representing the Unicode ETHIOPIC range. Note that
there is no digit zero in this range; an ASCII digit zero
is left unchanged when shaping to this range.
EUROPEAN
public static final int EUROPEAN
Constant representing the Unicode EUROPEAN range. For
contextual shaping purposes, characters in the various
extended Latin character blocks are recognized as EUROPEAN.
GUJARATI
public static final int GUJARATI
Constant representing the Unicode GUJARATI range.
GURMUKHI
public static final int GURMUKHI
Constant representing the Unicode GURMUKHI range.
KANNADA
public static final int KANNADA
Constant representing the Unicode KANNADA range.
KHMER
public static final int KHMER
Constant representing the Unicode KHMER range.
LAO
public static final int LAO
Constant representing the Unicode LAO range.
MALAYALAM
public static final int MALAYALAM
Constant representing the Unicode MALAYALAM range.
MONGOLIAN
public static final int MONGOLIAN
Constant representing the Unicode MONGOLIAN range.
MYANMAR
public static final int MYANMAR
Constant representing the Unicode MYANMAR range.
ORIYA
public static final int ORIYA
Constant representing the Unicode ORIYA range.
TAMIL
public static final int TAMIL
Constant representing the Unicode TAMIL range. Note that
there is no digit zero in this range; an ASCII digit zero
is left unchanged when shaping to this range.
TELUGU
public static final int TELUGU
Constant representing the Unicode TELUGU range.
THAI
public static final int THAI
Constant representing the Unicode THAI range.
TIBETAN
public static final int TIBETAN
Constant representing the Unicode TIBETAN range.
getContextualShaper
public static NumericShaper getContextualShaper(int ranges)
Return a contextual shaper which can shape to any of the indicated
languages. The default initial context for this shaper is EUROPEAN.
ranges
- the ranges to shape to
- a contextual shaper which will target any of these ranges
getContextualShaper
public static NumericShaper getContextualShaper(int ranges,
int defaultContext)
Return a contextual shaper which can shape to any of the indicated
languages. The default initial context for this shaper is given as
an argument.
ranges
- the ranges to shape todefaultContext
- the default initial context
- a contextual shaper which will target any of these ranges
IllegalArgumentException
- if the ranges argument specifies an
unrecognized range, or if the defaultContext argument does not specify
a single valid range
getRanges
public int getRanges()
Return an integer representing all the languages for which this
shaper will shape. The result is taken by "or"ing together
the constants representing the various languages.
getShaper
public static NumericShaper getShaper(int singleRange)
Return a non-contextual shaper which can shape to a single range.
All ASCII digits in the input text are translated to this language.
singleRange
- the target language
- a non-contextual shaper for this language
IllegalArgumentException
- if the argument does not name a
single language, as specified by the constants declared in this class
isContextual
public boolean isContextual()
Return true if this shaper is contextual, false if it is not.
shape
public void shape(char[] text,
int start,
int count)
Shape the text in the given array. The starting context will
be the context passed to the shaper at creation time.
text
- the text to shapestart
- the index of the starting character of the arraycount
- the number of characters in the array
shape
public void shape(char[] text,
int start,
int count,
int context)
Shape the given text, using the indicated initial context.
If this shaper is not a contextual shaper, then the given context
will be ignored.
text
- the text to shapestart
- the index of the first character of the text to shapecount
- the number of characters to shape in the textcontext
- the initial context
NumericShaper.java
Copyright (C) 2003 Free Software Foundation, Inc.
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