am f6a63710
: Refactor CoordinateUtils
* commit 'f6a637109636f39fbcf932bab1709ff247690da8': Refactor CoordinateUtils
This commit is contained in:
commit
7c8a4232d0
1 changed files with 19 additions and 16 deletions
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@ -16,7 +16,7 @@
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package com.android.inputmethod.latin.utils;
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import java.util.Arrays;
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import javax.annotation.Nonnull;
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public final class CoordinateUtils {
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private static final int INDEX_X = 0;
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@ -27,32 +27,35 @@ public final class CoordinateUtils {
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// This utility class is not publicly instantiable.
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}
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@Nonnull
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public static int[] newInstance() {
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return new int[ELEMENT_SIZE];
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}
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public static int x(final int[] coords) {
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public static int x(@Nonnull final int[] coords) {
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return coords[INDEX_X];
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}
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public static int y(final int[] coords) {
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public static int y(@Nonnull final int[] coords) {
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return coords[INDEX_Y];
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}
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public static void set(final int[] coords, final int x, final int y) {
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public static void set(@Nonnull final int[] coords, final int x, final int y) {
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coords[INDEX_X] = x;
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coords[INDEX_Y] = y;
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}
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public static void copy(final int[] destination, final int[] source) {
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public static void copy(@Nonnull final int[] destination, @Nonnull final int[] source) {
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destination[INDEX_X] = source[INDEX_X];
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destination[INDEX_Y] = source[INDEX_Y];
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}
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@Nonnull
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public static int[] newCoordinateArray(final int arraySize) {
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return new int[ELEMENT_SIZE * arraySize];
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}
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@Nonnull
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public static int[] newCoordinateArray(final int arraySize,
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final int defaultX, final int defaultY) {
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final int[] result = new int[ELEMENT_SIZE * arraySize];
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@ -62,30 +65,30 @@ public final class CoordinateUtils {
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return result;
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}
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public static int xFromArray(final int[] coordsArray, final int index) {
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public static int xFromArray(@Nonnull final int[] coordsArray, final int index) {
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return coordsArray[ELEMENT_SIZE * index + INDEX_X];
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}
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public static int yFromArray(final int[] coordsArray, final int index) {
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public static int yFromArray(@Nonnull final int[] coordsArray, final int index) {
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return coordsArray[ELEMENT_SIZE * index + INDEX_Y];
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}
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public static int[] coordinateFromArray(final int[] coordsArray, final int index) {
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final int baseIndex = ELEMENT_SIZE * index;
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return Arrays.copyOfRange(coordsArray, baseIndex, baseIndex + ELEMENT_SIZE);
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@Nonnull
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public static int[] coordinateFromArray(@Nonnull final int[] coordsArray, final int index) {
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final int[] coords = newInstance();
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set(coords, xFromArray(coordsArray, index), yFromArray(coordsArray, index));
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return coords;
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}
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public static void setXYInArray(final int[] coordsArray, final int index,
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public static void setXYInArray(@Nonnull final int[] coordsArray, final int index,
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final int x, final int y) {
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final int baseIndex = ELEMENT_SIZE * index;
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coordsArray[baseIndex + INDEX_X] = x;
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coordsArray[baseIndex + INDEX_Y] = y;
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}
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public static void setCoordinateInArray(final int[] coordsArray, final int index,
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final int[] coords) {
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final int baseIndex = ELEMENT_SIZE * index;
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coordsArray[baseIndex + INDEX_X] = coords[INDEX_X];
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coordsArray[baseIndex + INDEX_Y] = coords[INDEX_Y];
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public static void setCoordinateInArray(@Nonnull final int[] coordsArray, final int index,
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@Nonnull final int[] coords) {
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setXYInArray(coordsArray, index, x(coords), y(coords));
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}
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}
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