1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of 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, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.inputmethod.keyboard.internal; 18 19 import android.util.SparseIntArray; 20 21 import com.android.inputmethod.keyboard.Key; 22 import com.android.inputmethod.keyboard.KeyboardId; 23 import com.android.inputmethod.latin.CollectionUtils; 24 import com.android.inputmethod.latin.Constants; 25 26 import java.util.ArrayList; 27 import java.util.TreeSet; 28 29 public class KeyboardParams { 30 public KeyboardId mId; 31 public int mThemeId; 32 33 /** Total height and width of the keyboard, including the paddings and keys */ 34 public int mOccupiedHeight; 35 public int mOccupiedWidth; 36 37 /** Base height and width of the keyboard used to calculate rows' or keys' heights and 38 * widths 39 */ 40 public int mBaseHeight; 41 public int mBaseWidth; 42 43 public int mTopPadding; 44 public int mBottomPadding; 45 public int mLeftPadding; 46 public int mRightPadding; 47 48 public KeyVisualAttributes mKeyVisualAttributes; 49 50 public int mDefaultRowHeight; 51 public int mDefaultKeyWidth; 52 public int mHorizontalGap; 53 public int mVerticalGap; 54 55 public int mMoreKeysTemplate; 56 public int mMaxMoreKeysKeyboardColumn; 57 58 public int GRID_WIDTH; 59 public int GRID_HEIGHT; 60 61 public final TreeSet<Key> mKeys = CollectionUtils.newTreeSet(); // ordered set 62 public final ArrayList<Key> mShiftKeys = CollectionUtils.newArrayList(); 63 public final ArrayList<Key> mAltCodeKeysWhileTyping = CollectionUtils.newArrayList(); 64 public final KeyboardIconsSet mIconsSet = new KeyboardIconsSet(); 65 public final KeyboardCodesSet mCodesSet = new KeyboardCodesSet(); 66 public final KeyboardTextsSet mTextsSet = new KeyboardTextsSet(); 67 public final KeyStylesSet mKeyStyles = new KeyStylesSet(mTextsSet); 68 69 public KeysCache mKeysCache; 70 71 public int mMostCommonKeyHeight = 0; 72 public int mMostCommonKeyWidth = 0; 73 74 public boolean mProximityCharsCorrectionEnabled; 75 76 public final TouchPositionCorrection mTouchPositionCorrection = 77 new TouchPositionCorrection(); 78 clearKeys()79 protected void clearKeys() { 80 mKeys.clear(); 81 mShiftKeys.clear(); 82 clearHistogram(); 83 } 84 onAddKey(final Key newKey)85 public void onAddKey(final Key newKey) { 86 final Key key = (mKeysCache != null) ? mKeysCache.get(newKey) : newKey; 87 final boolean zeroWidthSpacer = key.isSpacer() && key.mWidth == 0; 88 if (!zeroWidthSpacer) { 89 mKeys.add(key); 90 updateHistogram(key); 91 } 92 if (key.mCode == Constants.CODE_SHIFT) { 93 mShiftKeys.add(key); 94 } 95 if (key.altCodeWhileTyping()) { 96 mAltCodeKeysWhileTyping.add(key); 97 } 98 } 99 100 private int mMaxHeightCount = 0; 101 private int mMaxWidthCount = 0; 102 private final SparseIntArray mHeightHistogram = new SparseIntArray(); 103 private final SparseIntArray mWidthHistogram = new SparseIntArray(); 104 clearHistogram()105 private void clearHistogram() { 106 mMostCommonKeyHeight = 0; 107 mMaxHeightCount = 0; 108 mHeightHistogram.clear(); 109 110 mMaxWidthCount = 0; 111 mMostCommonKeyWidth = 0; 112 mWidthHistogram.clear(); 113 } 114 updateHistogramCounter(final SparseIntArray histogram, final int key)115 private static int updateHistogramCounter(final SparseIntArray histogram, final int key) { 116 final int index = histogram.indexOfKey(key); 117 final int count = (index >= 0 ? histogram.get(key) : 0) + 1; 118 histogram.put(key, count); 119 return count; 120 } 121 updateHistogram(final Key key)122 private void updateHistogram(final Key key) { 123 final int height = key.mHeight + mVerticalGap; 124 final int heightCount = updateHistogramCounter(mHeightHistogram, height); 125 if (heightCount > mMaxHeightCount) { 126 mMaxHeightCount = heightCount; 127 mMostCommonKeyHeight = height; 128 } 129 130 final int width = key.mWidth + mHorizontalGap; 131 final int widthCount = updateHistogramCounter(mWidthHistogram, width); 132 if (widthCount > mMaxWidthCount) { 133 mMaxWidthCount = widthCount; 134 mMostCommonKeyWidth = width; 135 } 136 } 137 } 138