1 files changed, 39 insertions, 2 deletions
diff --git a/java/src/com/android/inputmethod/latin/utils/CoordinateUtils.java b/java/src/com/android/inputmethod/latin/utils/CoordinateUtils.java
index 72f2cd2d9..91a63501a 100644
--- a/java/src/com/android/inputmethod/latin/utils/CoordinateUtils.java
+++ b/java/src/com/android/inputmethod/latin/utils/CoordinateUtils.java
@@ -16,17 +16,19 @@
 
 package com.android.inputmethod.latin.utils;
 
+import java.util.Arrays;
+
 public final class CoordinateUtils {
     private static final int INDEX_X = 0;
     private static final int INDEX_Y = 1;
-    private static final int ARRAY_SIZE = INDEX_Y + 1;
+    private static final int ELEMENT_SIZE = INDEX_Y + 1;
 
     private CoordinateUtils() {
         // This utility class is not publicly instantiable.
     }
 
     public static int[] newInstance() {
-        return new int[ARRAY_SIZE];
+        return new int[ELEMENT_SIZE];
     }
 
     public static int x(final int[] coords) {
@@ -46,4 +48,39 @@ public final class CoordinateUtils {
         destination[INDEX_X] = source[INDEX_X];
         destination[INDEX_Y] = source[INDEX_Y];
     }
+
+    public static int[] newCoordinateArray(final int arraySize) {
+        return new int[ELEMENT_SIZE * arraySize];
+    }
+
+    public static int xFromArray(final int[] coordsArray, final int index) {
+        return coordsArray[ELEMENT_SIZE * index + INDEX_X];
+    }
+
+    public static int yFromArray(final int[] coordsArray, final int index) {
+        return coordsArray[ELEMENT_SIZE * index + INDEX_Y];
+    }
+
+    public static int[] coordinateFromArray(final int[] coordsArray, final int index) {
+        final int baseIndex = ELEMENT_SIZE * index;
+        return Arrays.copyOfRange(coordsArray, baseIndex, baseIndex + ELEMENT_SIZE);
+    }
+
+    public static void setXYInArray(final int[] coordsArray, final int index,
+            final int x, final int y) {
+        final int baseIndex = ELEMENT_SIZE * index;
+        coordsArray[baseIndex + INDEX_X] = x;
+        coordsArray[baseIndex + INDEX_Y] = y;
+    }
+
+    public static void setCoordinateInArray(final int[] coordsArray, final int index,
+            final int[] coords) {
+        final int baseIndex = ELEMENT_SIZE * index;
+        coordsArray[baseIndex + INDEX_X] = coords[INDEX_X];
+        coordsArray[baseIndex + INDEX_Y] = coords[INDEX_Y];
+    }
+
+    public static void copyArray(final int[] destination, final int[] source) {
+        System.arraycopy(source, 0, destination, 0, source.length);
+    }
 }