1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 5 * use this file except in compliance with the License. You may obtain a copy of 6 * the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 13 * License for the specific language governing permissions and limitations under 14 * the License. 15 */ 16 17 package com.android.inputmethod.keyboard.internal; 18 19 import com.android.inputmethod.latin.LatinImeLogger; 20 21 public final class TouchPositionCorrection { 22 private static final int TOUCH_POSITION_CORRECTION_RECORD_SIZE = 3; 23 24 private boolean mEnabled; 25 private float[] mXs; 26 private float[] mYs; 27 private float[] mRadii; 28 load(final String[] data)29 public void load(final String[] data) { 30 final int dataLength = data.length; 31 if (dataLength % TOUCH_POSITION_CORRECTION_RECORD_SIZE != 0) { 32 if (LatinImeLogger.sDBG) { 33 throw new RuntimeException( 34 "the size of touch position correction data is invalid"); 35 } 36 return; 37 } 38 39 final int length = dataLength / TOUCH_POSITION_CORRECTION_RECORD_SIZE; 40 mXs = new float[length]; 41 mYs = new float[length]; 42 mRadii = new float[length]; 43 try { 44 for (int i = 0; i < dataLength; ++i) { 45 final int type = i % TOUCH_POSITION_CORRECTION_RECORD_SIZE; 46 final int index = i / TOUCH_POSITION_CORRECTION_RECORD_SIZE; 47 final float value = Float.parseFloat(data[i]); 48 if (type == 0) { 49 mXs[index] = value; 50 } else if (type == 1) { 51 mYs[index] = value; 52 } else { 53 mRadii[index] = value; 54 } 55 } 56 mEnabled = dataLength > 0; 57 } catch (NumberFormatException e) { 58 if (LatinImeLogger.sDBG) { 59 throw new RuntimeException( 60 "the number format for touch position correction data is invalid"); 61 } 62 mEnabled = false; 63 mXs = null; 64 mYs = null; 65 mRadii = null; 66 } 67 } 68 69 // For test only setEnabled(final boolean enabled)70 public void setEnabled(final boolean enabled) { 71 mEnabled = enabled; 72 } 73 isValid()74 public boolean isValid() { 75 return mEnabled; 76 } 77 getRows()78 public int getRows() { 79 return mRadii.length; 80 } 81 getX(final int row)82 public float getX(final int row) { 83 return 0.0f; 84 // Touch position correction data for X coordinate is obsolete. 85 // return mXs[row]; 86 } 87 getY(final int row)88 public float getY(final int row) { 89 return mYs[row]; 90 } 91 getRadius(final int row)92 public float getRadius(final int row) { 93 return mRadii[row]; 94 } 95 } 96