diff options
Diffstat (limited to 'core/java/android')
| -rw-r--r-- | core/java/android/text/AndroidCharacter.java | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/core/java/android/text/AndroidCharacter.java b/core/java/android/text/AndroidCharacter.java index 6dfd64d..af93b5d 100644 --- a/core/java/android/text/AndroidCharacter.java +++ b/core/java/android/text/AndroidCharacter.java @@ -22,6 +22,13 @@ package android.text; */ public class AndroidCharacter { + public static final int EAST_ASIAN_WIDTH_NEUTRAL = 0; + public static final int EAST_ASIAN_WIDTH_AMBIGUOUS = 1; + public static final int EAST_ASIAN_WIDTH_HALF_WIDTH = 2; + public static final int EAST_ASIAN_WIDTH_FULL_WIDTH = 3; + public static final int EAST_ASIAN_WIDTH_NARROW = 4; + public static final int EAST_ASIAN_WIDTH_WIDE = 5; + /** * Fill in the first <code>count</code> bytes of <code>dest</code> with the * directionalities from the first <code>count</code> chars of <code>src</code>. @@ -30,6 +37,38 @@ public class AndroidCharacter */ public native static void getDirectionalities(char[] src, byte[] dest, int count); + + /** + * Calculate the East Asian Width of a character according to + * <a href="http://unicode.org/reports/tr11/">Unicode TR#11</a>. The return + * will be one of {@link #EAST_ASIAN_WIDTH_NEUTRAL}, + * {@link #EAST_ASIAN_WIDTH_AMBIGUOUS}, {@link #EAST_ASIAN_WIDTH_HALF_WIDTH}, + * {@link #EAST_ASIAN_WIDTH_FULL_WIDTH}, {@link #EAST_ASIAN_WIDTH_NARROW}, + * or {@link #EAST_ASIAN_WIDTH_WIDE}. + * + * @param input the character to measure + * @return the East Asian Width for input + */ + public native static int getEastAsianWidth(char input); + + /** + * Fill the first <code>count</code> bytes of <code>dest</code> with the + * East Asian Width from the first <code>count</code> chars of + * <code>src</code>. East Asian Width is calculated based on + * <a href="http://unicode.org/reports/tr11/">Unicode TR#11</a>. Each entry + * in <code>dest> will be one of {@link #EAST_ASIAN_WIDTH_NEUTRAL}, + * {@link #EAST_ASIAN_WIDTH_AMBIGUOUS}, {@link #EAST_ASIAN_WIDTH_HALF_WIDTH}, + * {@link #EAST_ASIAN_WIDTH_FULL_WIDTH}, {@link #EAST_ASIAN_WIDTH_NARROW}, + * or {@link #EAST_ASIAN_WIDTH_WIDE}. + * + * @param src character array of input to measure + * @param start first character in array to measure + * @param count maximum number of characters to measure + * @param dest byte array of results for each character in src + */ + public native static void getEastAsianWidths(char[] src, int start, + int count, byte[] dest); + /** * Replace the specified slice of <code>text</code> with the chars' * right-to-left mirrors (if any), returning true if any |