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Diffstat (limited to 'core/java/android/text/Layout.java')
| -rw-r--r-- | core/java/android/text/Layout.java | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/core/java/android/text/Layout.java b/core/java/android/text/Layout.java index e5fd2921227d..c8e0dd291041 100644 --- a/core/java/android/text/Layout.java +++ b/core/java/android/text/Layout.java @@ -2360,6 +2360,52 @@ public abstract class Layout { public Directions(int[] dirs) { mDirections = dirs; } + + /** + * Returns number of BiDi runs. + * + * @hide + */ + public @IntRange(from = 0) int getRunCount() { + return mDirections.length / 2; + } + + /** + * Returns the start offset of the BiDi run. + * + * @param runIndex the index of the BiDi run + * @return the start offset of the BiDi run. + * @hide + */ + public @IntRange(from = 0) int getRunStart(@IntRange(from = 0) int runIndex) { + return mDirections[runIndex * 2]; + } + + /** + * Returns the length of the BiDi run. + * + * Note that this method may return too large number due to reducing the number of object + * allocations. The too large number means the remaining part is assigned to this run. The + * caller must clamp the returned value. + * + * @param runIndex the index of the BiDi run + * @return the length of the BiDi run. + * @hide + */ + public @IntRange(from = 0) int getRunLength(@IntRange(from = 0) int runIndex) { + return mDirections[runIndex * 2 + 1] & RUN_LENGTH_MASK; + } + + /** + * Returns true if the BiDi run is RTL. + * + * @param runIndex the index of the BiDi run + * @return true if the BiDi run is RTL. + * @hide + */ + public boolean isRunRtl(int runIndex) { + return (mDirections[runIndex * 2 + 1] & RUN_RTL_FLAG) != 0; + } } /** |