From 2aea34fb31f1a8a5fe24cccd1b9aab4908f2f8e2 Mon Sep 17 00:00:00 2001
From: Yuichiro Hanada <yhanada@google.com>
Date: Wed, 26 Sep 2012 13:21:29 +0900
Subject: [PATCH] Add updateParentAddress.
bug: 6669677
Change-Id: I353f8ae53720cdf7a809271a28cb703709609f53
---
.../latin/makedict/BinaryDictIOUtils.java | 30 +++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java b/java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java
index e2c1254cec..b97be05436 100644
--- a/java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java
+++ b/java/src/com/android/inputmethod/latin/makedict/BinaryDictIOUtils.java
@@ -246,4 +246,34 @@ public class BinaryDictIOUtils {
buffer.position(wordPosition);
buffer.put((byte)newFlags);
}
+
+ private static void putSInt24(final FusionDictionaryBufferInterface buffer,
+ final int value) {
+ final int absValue = Math.abs(value);
+ buffer.put((byte)(((value < 0 ? 0x80 : 0) | (absValue >> 16)) & 0xFF));
+ buffer.put((byte)((absValue >> 8) & 0xFF));
+ buffer.put((byte)(absValue & 0xFF));
+ }
+
+ /**
+ * Update a parent address in a CharGroup that is addressed by groupOriginAddress.
+ *
+ * @param buffer the buffer to write.
+ * @param groupOriginAddress the address of the group.
+ * @param newParentAddress the absolute address of the parent.
+ * @param formatOptions file format options.
+ */
+ public static void updateParentAddress(final FusionDictionaryBufferInterface buffer,
+ final int groupOriginAddress, final int newParentAddress,
+ final FormatOptions formatOptions) {
+ final int originalPosition = buffer.position();
+ buffer.position(groupOriginAddress);
+ if (!formatOptions.mSupportsDynamicUpdate) {
+ throw new RuntimeException("this file format does not support parent addresses");
+ }
+ final int flags = buffer.readUnsignedByte();
+ final int parentOffset = newParentAddress - groupOriginAddress;
+ putSInt24(buffer, parentOffset);
+ buffer.position(originalPosition);
+ }
}
--
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