proximity_info_state.cpp revision 394b0bd345f33b1314613a433478fd0bb711e0f7
13e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka/* 23e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka * Copyright (C) 2012 The Android Open Source Project 33e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka * 43e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka * Licensed under the Apache License, Version 2.0 (the "License"); 53e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka * you may not use this file except in compliance with the License. 63e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka * You may obtain a copy of the License at 73e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka * 83e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka * http://www.apache.org/licenses/LICENSE-2.0 93e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka * 103e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka * Unless required by applicable law or agreed to in writing, software 113e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka * distributed under the License is distributed on an "AS IS" BASIS, 123e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 133e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka * See the License for the specific language governing permissions and 143e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka * limitations under the License. 153e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka */ 163e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka 1720b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka#include <cstring> // for memset() and memcpy() 18806eba452423e5e5971ef096dfae3fed180db665Keisuke Kuroyanagi#include <sstream> // for debug prints 19e5cdd21102e4e49b18c696261a084783eb6d7e7aSatoshi Kataoka#include <vector> 203e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka 213e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka#define LOG_TAG "LatinIME: proximity_info_state.cpp" 223e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka 233e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka#include "defines.h" 246cee61deebd0ca2b85054ccc239523d1e5fdfab1Ken Wakasa#include "geometry_utils.h" 253e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka#include "proximity_info.h" 263e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka#include "proximity_info_state.h" 2747cc52415e3affb83eb4369190425b2a17b956c5Satoshi Kataoka#include "proximity_info_state_utils.h" 283e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka 293e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataokanamespace latinime { 30764dd712032d7b8012797b1116b523bef7b907f3Ken Wakasa 31233aad5e5c7567a97af30f38f50a65365f729dfeSatoshi Kataokavoid ProximityInfoState::initInputParams(const int pointerId, const float maxPointToKeyLength, 321e61493c50082264caaef862df02b1ccc84dc396Ken Wakasa const ProximityInfo *proximityInfo, const int *const inputCodes, const int inputSize, 33687a244703a02323ebd64433cbaead5def499861Satoshi Kataoka const int *const xCoordinates, const int *const yCoordinates, const int *const times, 34687a244703a02323ebd64433cbaead5def499861Satoshi Kataoka const int *const pointerIds, const bool isGeometric) { 359d18c6dd38c4d5632a5d5a5c26f567b9f6f7f969Satoshi Kataoka ASSERT(isGeometric || (inputSize < MAX_WORD_LENGTH)); 36394b0bd345f33b1314613a433478fd0bb711e0f7Satoshi Kataoka mIsContinuousSuggestionPossible = 37394b0bd345f33b1314613a433478fd0bb711e0f7Satoshi Kataoka ProximityInfoStateUtils::checkAndReturnIsContinuousSuggestionPossible( 38394b0bd345f33b1314613a433478fd0bb711e0f7Satoshi Kataoka inputSize, xCoordinates, yCoordinates, times, mSampledInputSize, 39394b0bd345f33b1314613a433478fd0bb711e0f7Satoshi Kataoka &mSampledInputXs, &mSampledInputYs, &mSampledTimes, &mSampledInputIndice); 40d1fff1adcc0693286ace156eaf467ccccbc0a719Satoshi Kataoka if (DEBUG_DICT) { 41394b0bd345f33b1314613a433478fd0bb711e0f7Satoshi Kataoka AKLOGI("isContinuousSuggestionPossible = %s", 42394b0bd345f33b1314613a433478fd0bb711e0f7Satoshi Kataoka (mIsContinuousSuggestionPossible ? "true" : "false")); 43d1fff1adcc0693286ace156eaf467ccccbc0a719Satoshi Kataoka } 44096f35ff4b5413906e2a339663baf16e5dabaf64Keisuke Kuroyanagi 454a3db7057f77dc85311fb1f94934b5a004ab613eSatoshi Kataoka mProximityInfo = proximityInfo; 464a3db7057f77dc85311fb1f94934b5a004ab613eSatoshi Kataoka mHasTouchPositionCorrectionData = proximityInfo->hasTouchPositionCorrectionData(); 474a3db7057f77dc85311fb1f94934b5a004ab613eSatoshi Kataoka mMostCommonKeyWidthSquare = proximityInfo->getMostCommonKeyWidthSquare(); 484a3db7057f77dc85311fb1f94934b5a004ab613eSatoshi Kataoka mKeyCount = proximityInfo->getKeyCount(); 494a3db7057f77dc85311fb1f94934b5a004ab613eSatoshi Kataoka mCellHeight = proximityInfo->getCellHeight(); 504a3db7057f77dc85311fb1f94934b5a004ab613eSatoshi Kataoka mCellWidth = proximityInfo->getCellWidth(); 514a3db7057f77dc85311fb1f94934b5a004ab613eSatoshi Kataoka mGridHeight = proximityInfo->getGridWidth(); 524a3db7057f77dc85311fb1f94934b5a004ab613eSatoshi Kataoka mGridWidth = proximityInfo->getGridHeight(); 533e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka 54bf78e1371c12d819020d60f0e585f5e6c26e6aa2Satoshi Kataoka memset(mInputProximities, 0, sizeof(mInputProximities)); 553e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka 5608f00cf55f2e083c1ed254a32495b622c9ad9862Satoshi Kataoka if (!isGeometric && pointerId == 0) { 57bf78e1371c12d819020d60f0e585f5e6c26e6aa2Satoshi Kataoka mProximityInfo->initializeProximities(inputCodes, xCoordinates, yCoordinates, 58bf78e1371c12d819020d60f0e585f5e6c26e6aa2Satoshi Kataoka inputSize, mInputProximities); 593e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka } 60687a244703a02323ebd64433cbaead5def499861Satoshi Kataoka 61687a244703a02323ebd64433cbaead5def499861Satoshi Kataoka /////////////////////// 62687a244703a02323ebd64433cbaead5def499861Satoshi Kataoka // Setup touch points 63096f35ff4b5413906e2a339663baf16e5dabaf64Keisuke Kuroyanagi int pushTouchPointStartIndex = 0; 64096f35ff4b5413906e2a339663baf16e5dabaf64Keisuke Kuroyanagi int lastSavedInputSize = 0; 6508f00cf55f2e083c1ed254a32495b622c9ad9862Satoshi Kataoka mMaxPointToKeyLength = maxPointToKeyLength; 6620b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka mSampledInputSize = 0; 6720b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka mMostProbableStringProbability = 0.0f; 6820b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka 69394b0bd345f33b1314613a433478fd0bb711e0f7Satoshi Kataoka if (mIsContinuousSuggestionPossible && mSampledInputIndice.size() > 1) { 70096f35ff4b5413906e2a339663baf16e5dabaf64Keisuke Kuroyanagi // Just update difference. 7120b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka // Previous two points are never skipped. Thus, we pop 2 input point data here. 7220b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka pushTouchPointStartIndex = ProximityInfoStateUtils::trimLastTwoTouchPoints( 7320b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka &mSampledInputXs, &mSampledInputYs, &mSampledTimes, &mSampledLengthCache, 7420b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka &mSampledInputIndice); 75feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka lastSavedInputSize = mSampledInputXs.size(); 76096f35ff4b5413906e2a339663baf16e5dabaf64Keisuke Kuroyanagi } else { 77096f35ff4b5413906e2a339663baf16e5dabaf64Keisuke Kuroyanagi // Clear all data. 78feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka mSampledInputXs.clear(); 79feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka mSampledInputYs.clear(); 80d7a8fbf6a9ec8828d4b6d1c615a6c605bbe5b72eSatoshi Kataoka mSampledTimes.clear(); 81d7a8fbf6a9ec8828d4b6d1c615a6c605bbe5b72eSatoshi Kataoka mSampledInputIndice.clear(); 82d7a8fbf6a9ec8828d4b6d1c615a6c605bbe5b72eSatoshi Kataoka mSampledLengthCache.clear(); 83e5aad5646309e80e1cd71533fb47a6be43f3aa2fSatoshi Kataoka mSampledDistanceCache_G.clear(); 84e5cdd21102e4e49b18c696261a084783eb6d7e7aSatoshi Kataoka mSampledNearKeySets.clear(); 85e5cdd21102e4e49b18c696261a084783eb6d7e7aSatoshi Kataoka mSampledSearchKeySets.clear(); 869af533538ea749d7c930bb3125fa4d3e4feb8478Satoshi Kataoka mSpeedRates.clear(); 876ae8dd4343445d2df4444388b605d2aa930fa2a0Satoshi Kataoka mBeelineSpeedPercentiles.clear(); 88806eba452423e5e5971ef096dfae3fed180db665Keisuke Kuroyanagi mCharProbabilities.clear(); 891e06a4d8e9e71188ed685282155ea52a48ddc050Keisuke Kuroyanagi mDirections.clear(); 90096f35ff4b5413906e2a339663baf16e5dabaf64Keisuke Kuroyanagi } 9120b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka 929182daf98c0d1db897e82b77c2196b7f9aad6f01Satoshi Kataoka if (DEBUG_GEO_FULL) { 939182daf98c0d1db897e82b77c2196b7f9aad6f01Satoshi Kataoka AKLOGI("Init ProximityInfoState: reused points = %d, last input size = %d", 949182daf98c0d1db897e82b77c2196b7f9aad6f01Satoshi Kataoka pushTouchPointStartIndex, lastSavedInputSize); 959182daf98c0d1db897e82b77c2196b7f9aad6f01Satoshi Kataoka } 96d9c10b19793b011f862e3dd31883f746044431d7Keisuke Kuroyanagi 97687a244703a02323ebd64433cbaead5def499861Satoshi Kataoka if (xCoordinates && yCoordinates) { 9828c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa mSampledInputSize = ProximityInfoStateUtils::updateTouchPoints(mProximityInfo, 9928c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa mMaxPointToKeyLength, mInputProximities, xCoordinates, yCoordinates, times, 10028c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa pointerIds, inputSize, isGeometric, pointerId, pushTouchPointStartIndex, 10128c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa &mSampledInputXs, &mSampledInputYs, &mSampledTimes, &mSampledLengthCache, 10228c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa &mSampledInputIndice); 1033e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka } 104687a244703a02323ebd64433cbaead5def499861Satoshi Kataoka 105feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka if (mSampledInputSize > 0 && isGeometric) { 10628c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa mAverageSpeed = ProximityInfoStateUtils::refreshSpeedRates(inputSize, xCoordinates, 10728c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa yCoordinates, times, lastSavedInputSize, mSampledInputSize, &mSampledInputXs, 10828c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa &mSampledInputYs, &mSampledTimes, &mSampledLengthCache, &mSampledInputIndice, 10928c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa &mSpeedRates, &mDirections); 11028c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa ProximityInfoStateUtils::refreshBeelineSpeedRates(mProximityInfo->getMostCommonKeyWidth(), 11128c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa mAverageSpeed, inputSize, xCoordinates, yCoordinates, times, mSampledInputSize, 11228c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa &mSampledInputXs, &mSampledInputYs, &mSampledInputIndice, 11328c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa &mBeelineSpeedPercentiles); 114ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi } 115ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi 116feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka if (mSampledInputSize > 0) { 11728c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa ProximityInfoStateUtils::initGeometricDistanceInfos(mProximityInfo, mSampledInputSize, 118e5cdd21102e4e49b18c696261a084783eb6d7e7aSatoshi Kataoka lastSavedInputSize, &mSampledInputXs, &mSampledInputYs, &mSampledNearKeySets, 11928c008421cc5d97da8e470dbc934a2891daf9997Ken Wakasa &mSampledDistanceCache_G); 120ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi if (isGeometric) { 121ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi // updates probabilities of skipping or mapping each key for all points. 122d4828d5053ac30476b884c177235be0cac982c92Satoshi Kataoka ProximityInfoStateUtils::updateAlignPointProbabilities( 123d4828d5053ac30476b884c177235be0cac982c92Satoshi Kataoka mMaxPointToKeyLength, mProximityInfo->getMostCommonKeyWidth(), 124d7a8fbf6a9ec8828d4b6d1c615a6c605bbe5b72eSatoshi Kataoka mProximityInfo->getKeyCount(), lastSavedInputSize, mSampledInputSize, 125d7a8fbf6a9ec8828d4b6d1c615a6c605bbe5b72eSatoshi Kataoka &mSampledInputXs, &mSampledInputYs, &mSpeedRates, &mSampledLengthCache, 126e5cdd21102e4e49b18c696261a084783eb6d7e7aSatoshi Kataoka &mSampledDistanceCache_G, &mSampledNearKeySets, &mCharProbabilities); 127e5cdd21102e4e49b18c696261a084783eb6d7e7aSatoshi Kataoka ProximityInfoStateUtils::updateSampledSearchKeySets(mProximityInfo, 128e5aad5646309e80e1cd71533fb47a6be43f3aa2fSatoshi Kataoka mSampledInputSize, lastSavedInputSize, &mSampledLengthCache, 129e5cdd21102e4e49b18c696261a084783eb6d7e7aSatoshi Kataoka &mSampledNearKeySets, &mSampledSearchKeySets, 130e5cdd21102e4e49b18c696261a084783eb6d7e7aSatoshi Kataoka &mSampledSearchKeyVectors); 13120b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka mMostProbableStringProbability = ProximityInfoStateUtils::getMostProbableString( 13220b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka mProximityInfo, mSampledInputSize, &mCharProbabilities, mMostProbableString); 13320b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka 134687a244703a02323ebd64433cbaead5def499861Satoshi Kataoka } 135687a244703a02323ebd64433cbaead5def499861Satoshi Kataoka } 13608f00cf55f2e083c1ed254a32495b622c9ad9862Satoshi Kataoka 137806eba452423e5e5971ef096dfae3fed180db665Keisuke Kuroyanagi if (DEBUG_SAMPLING_POINTS) { 138d7a8fbf6a9ec8828d4b6d1c615a6c605bbe5b72eSatoshi Kataoka ProximityInfoStateUtils::dump(isGeometric, inputSize, xCoordinates, yCoordinates, 139e2912d17e4dab75b81f4c9e41a539e491ac059caSatoshi Kataoka mSampledInputSize, &mSampledInputXs, &mSampledInputYs, &mSampledTimes, &mSpeedRates, 140d7a8fbf6a9ec8828d4b6d1c615a6c605bbe5b72eSatoshi Kataoka &mBeelineSpeedPercentiles); 141806eba452423e5e5971ef096dfae3fed180db665Keisuke Kuroyanagi } 142687a244703a02323ebd64433cbaead5def499861Satoshi Kataoka // end 143687a244703a02323ebd64433cbaead5def499861Satoshi Kataoka /////////////////////// 144687a244703a02323ebd64433cbaead5def499861Satoshi Kataoka 145feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka mTouchPositionCorrectionEnabled = mSampledInputSize > 0 && mHasTouchPositionCorrectionData 1460edab9d2fcc30667c79aa9221dbb27f042d8b455Satoshi Kataoka && xCoordinates && yCoordinates; 14708f00cf55f2e083c1ed254a32495b622c9ad9862Satoshi Kataoka if (!isGeometric && pointerId == 0) { 148d7a8fbf6a9ec8828d4b6d1c615a6c605bbe5b72eSatoshi Kataoka ProximityInfoStateUtils::initPrimaryInputWord( 149d7a8fbf6a9ec8828d4b6d1c615a6c605bbe5b72eSatoshi Kataoka inputSize, mInputProximities, mPrimaryInputWord); 150d7a8fbf6a9ec8828d4b6d1c615a6c605bbe5b72eSatoshi Kataoka if (mTouchPositionCorrectionEnabled) { 151d7a8fbf6a9ec8828d4b6d1c615a6c605bbe5b72eSatoshi Kataoka ProximityInfoStateUtils::initNormalizedSquaredDistances( 152d7a8fbf6a9ec8828d4b6d1c615a6c605bbe5b72eSatoshi Kataoka mProximityInfo, inputSize, xCoordinates, yCoordinates, mInputProximities, 15320b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka &mSampledInputXs, &mSampledInputYs, mNormalizedSquaredDistances); 1543e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka } 1553e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka } 156952ec4977d772607140773ae7d8868f86a7e0097Satoshi Kataoka if (DEBUG_GEO_FULL) { 157feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka AKLOGI("ProximityState init finished: %d points out of %d", mSampledInputSize, inputSize); 158feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka } 159feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka} 160feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka 1610519fdd18ac4414b8298d3338db1c8ccce032170Satoshi Kataoka// This function basically converts from a length to an edit distance. Accordingly, it's obviously 1620519fdd18ac4414b8298d3338db1c8ccce032170Satoshi Kataoka// wrong to compare with mMaxPointToKeyLength. 1630519fdd18ac4414b8298d3338db1c8ccce032170Satoshi Kataokafloat ProximityInfoState::getPointToKeyLength( 1642192d08b9cca6a40d834d6a5001d19b5845ed8a0Tom Ouyang const int inputIndex, const int codePoint) const { 165ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi const int keyId = mProximityInfo->getKeyIndexOf(codePoint); 166ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi if (keyId != NOT_AN_INDEX) { 167ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi const int index = inputIndex * mProximityInfo->getKeyCount() + keyId; 1682192d08b9cca6a40d834d6a5001d19b5845ed8a0Tom Ouyang return min(mSampledDistanceCache_G[index], mMaxPointToKeyLength); 169ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi } 170cbb816d1b0eaac91ba1c9c8fe13e17399dfc9499Satoshi Kataoka if (isIntentionalOmissionCodePoint(codePoint)) { 171806eba452423e5e5971ef096dfae3fed180db665Keisuke Kuroyanagi return 0.0f; 172806eba452423e5e5971ef096dfae3fed180db665Keisuke Kuroyanagi } 173ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi // If the char is not a key on the keyboard then return the max length. 174830ba67498c6da53b38212dd9ac5ba318a00de11Satoshi Kataoka return static_cast<float>(MAX_VALUE_FOR_WEIGHTING); 175806eba452423e5e5971ef096dfae3fed180db665Keisuke Kuroyanagi} 176806eba452423e5e5971ef096dfae3fed180db665Keisuke Kuroyanagi 1770519fdd18ac4414b8298d3338db1c8ccce032170Satoshi Kataokafloat ProximityInfoState::getPointToKeyByIdLength( 1782192d08b9cca6a40d834d6a5001d19b5845ed8a0Tom Ouyang const int inputIndex, const int keyId) const { 179d4828d5053ac30476b884c177235be0cac982c92Satoshi Kataoka return ProximityInfoStateUtils::getPointToKeyByIdLength(mMaxPointToKeyLength, 1802192d08b9cca6a40d834d6a5001d19b5845ed8a0Tom Ouyang &mSampledDistanceCache_G, mProximityInfo->getKeyCount(), inputIndex, keyId); 1810519fdd18ac4414b8298d3338db1c8ccce032170Satoshi Kataoka} 1820519fdd18ac4414b8298d3338db1c8ccce032170Satoshi Kataoka 1832c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa// In the following function, c is the current character of the dictionary word currently examined. 1842c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa// currentChars is an array containing the keys close to the character the user actually typed at 1852c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa// the same position. We want to see if c is in it: if so, then the word contains at that position 1862c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa// a character close to what the user typed. 1872c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa// What the user typed is actually the first character of the array. 188697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka// proximityIndex is a pointer to the variable where getProximityType returns the index of c 1892c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa// in the proximity chars of the input index. 1902c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa// Notice : accented characters do not have a proximity list, so they are alone in their list. The 1912c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa// non-accented version of the character should be considered "close", but not the other keys close 1922c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa// to the non-accented version. 193697a9d3541dd5b643664fc1af9b3265267370127Satoshi KataokaProximityType ProximityInfoState::getProximityType(const int index, const int codePoint, 1942c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa const bool checkProximityChars, int *proximityIndex) const { 1952c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa const int *currentCodePoints = getProximityCodePointsAt(index); 1962c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa const int firstCodePoint = currentCodePoints[0]; 197697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka const int baseLowerC = toBaseLowerCase(codePoint); 1982c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa 1992c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa // The first char in the array is what user typed. If it matches right away, that means the 2002c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa // user typed that same char for this pos. 201697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka if (firstCodePoint == baseLowerC || firstCodePoint == codePoint) { 202f4425aaae971fe78d44530ebe01cf7a59b2e47aaSatoshi Kataoka return MATCH_CHAR; 2032c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa } 2042c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa 205f4425aaae971fe78d44530ebe01cf7a59b2e47aaSatoshi Kataoka if (!checkProximityChars) return SUBSTITUTION_CHAR; 2062c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa 2072c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa // If the non-accented, lowercased version of that first character matches c, then we have a 2082c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa // non-accented version of the accented character the user typed. Treat it as a close char. 2092c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa if (toBaseLowerCase(firstCodePoint) == baseLowerC) { 210f4425aaae971fe78d44530ebe01cf7a59b2e47aaSatoshi Kataoka return PROXIMITY_CHAR; 2112c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa } 2122c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa 2132c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa // Not an exact nor an accent-alike match: search the list of close keys 2142c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa int j = 1; 2156c22439bf80da08576e86c1282afc5cfa431e235Ken Wakasa while (j < MAX_PROXIMITY_CHARS_SIZE 2162c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa && currentCodePoints[j] > ADDITIONAL_PROXIMITY_CHAR_DELIMITER_CODE) { 217697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka const bool matched = (currentCodePoints[j] == baseLowerC 218697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka || currentCodePoints[j] == codePoint); 2192c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa if (matched) { 2202c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa if (proximityIndex) { 2212c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa *proximityIndex = j; 2222c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa } 223f4425aaae971fe78d44530ebe01cf7a59b2e47aaSatoshi Kataoka return PROXIMITY_CHAR; 2242c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa } 2252c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa ++j; 2262c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa } 2276c22439bf80da08576e86c1282afc5cfa431e235Ken Wakasa if (j < MAX_PROXIMITY_CHARS_SIZE 2282c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa && currentCodePoints[j] == ADDITIONAL_PROXIMITY_CHAR_DELIMITER_CODE) { 2292c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa ++j; 2306c22439bf80da08576e86c1282afc5cfa431e235Ken Wakasa while (j < MAX_PROXIMITY_CHARS_SIZE 2312c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa && currentCodePoints[j] > ADDITIONAL_PROXIMITY_CHAR_DELIMITER_CODE) { 232697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka const bool matched = (currentCodePoints[j] == baseLowerC 233697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka || currentCodePoints[j] == codePoint); 2342c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa if (matched) { 2352c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa if (proximityIndex) { 2362c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa *proximityIndex = j; 2372c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa } 2382c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa return ADDITIONAL_PROXIMITY_CHAR; 2392c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa } 2402c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa ++j; 2412c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa } 2422c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa } 243f4425aaae971fe78d44530ebe01cf7a59b2e47aaSatoshi Kataoka // Was not included, signal this as a substitution character. 244f4425aaae971fe78d44530ebe01cf7a59b2e47aaSatoshi Kataoka return SUBSTITUTION_CHAR; 2452c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa} 2462c2f3a90d8115777adbe9ffd597f344aede84276Ken Wakasa 247697a9d3541dd5b643664fc1af9b3265267370127Satoshi KataokaProximityType ProximityInfoState::getProximityTypeG(const int index, const int codePoint) const { 248697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka if (!isUsed()) { 249f4425aaae971fe78d44530ebe01cf7a59b2e47aaSatoshi Kataoka return UNRELATED_CHAR; 250697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka } 251697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka const int lowerCodePoint = toLowerCase(codePoint); 252697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka const int baseLowerCodePoint = toBaseCodePoint(lowerCodePoint); 253697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka for (int i = 0; i < static_cast<int>(mSampledSearchKeyVectors[index].size()); ++i) { 254697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka if (mSampledSearchKeyVectors[index][i] == lowerCodePoint 255697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka || mSampledSearchKeyVectors[index][i] == baseLowerCodePoint) { 256f4425aaae971fe78d44530ebe01cf7a59b2e47aaSatoshi Kataoka return MATCH_CHAR; 257697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka } 258697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka } 259f4425aaae971fe78d44530ebe01cf7a59b2e47aaSatoshi Kataoka return UNRELATED_CHAR; 260697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka} 261697a9d3541dd5b643664fc1af9b3265267370127Satoshi Kataoka 262ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagibool ProximityInfoState::isKeyInSerchKeysAfterIndex(const int index, const int keyId) const { 26320b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka ASSERT(keyId >= 0 && index >= 0 && index < mSampledInputSize); 264e5cdd21102e4e49b18c696261a084783eb6d7e7aSatoshi Kataoka return mSampledSearchKeySets[index].test(keyId); 265ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi} 266ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi 267ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagifloat ProximityInfoState::getDirection(const int index0, const int index1) const { 268ee62b78c9675bddaf2437e0cf521f6115e1d9febSatoshi Kataoka return ProximityInfoStateUtils::getDirection( 269ee62b78c9675bddaf2437e0cf521f6115e1d9febSatoshi Kataoka &mSampledInputXs, &mSampledInputYs, index0, index1); 270ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi} 271ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi 272ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagifloat ProximityInfoState::getLineToKeyDistance( 273ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi const int from, const int to, const int keyId, const bool extend) const { 274feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka if (from < 0 || from > mSampledInputSize - 1) { 275ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi return 0.0f; 276ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi } 277feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka if (to < 0 || to > mSampledInputSize - 1) { 278ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi return 0.0f; 279ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi } 280feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka const int x0 = mSampledInputXs[from]; 281feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka const int y0 = mSampledInputYs[from]; 282feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka const int x1 = mSampledInputXs[to]; 283feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka const int y1 = mSampledInputYs[to]; 284ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi 285ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi const int keyX = mProximityInfo->getKeyCenterXOfKeyIdG(keyId); 286ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi const int keyY = mProximityInfo->getKeyCenterYOfKeyIdG(keyId); 287ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi 2880c2227ab991774768414d8ea60a469f005eb9f1aKen Wakasa return ProximityInfoUtils::pointToLineSegSquaredDistanceFloat( 2890c2227ab991774768414d8ea60a469f005eb9f1aKen Wakasa keyX, keyY, x0, y0, x1, y1, extend); 290806eba452423e5e5971ef096dfae3fed180db665Keisuke Kuroyanagi} 291806eba452423e5e5971ef096dfae3fed180db665Keisuke Kuroyanagi 292e0349619acdba79223390c9925d81f7e88c7f8adSatoshi Kataokafloat ProximityInfoState::getMostProbableString(int *const codePointBuf) const { 29320b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka memcpy(codePointBuf, mMostProbableString, sizeof(mMostProbableString)); 29420b6775acc957896bdb038dfd99794d6cd7cea5aSatoshi Kataoka return mMostProbableStringProbability; 295ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi} 296ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi 297f32869c6b6296a8bf594abdf0b18281d9312e54fSatoshi Kataokabool ProximityInfoState::hasSpaceProximity(const int index) const { 298f32869c6b6296a8bf594abdf0b18281d9312e54fSatoshi Kataoka ASSERT(0 <= index && index < mSampledInputSize); 299f32869c6b6296a8bf594abdf0b18281d9312e54fSatoshi Kataoka return mProximityInfo->hasSpaceProximity(getInputX(index), getInputY(index)); 300f32869c6b6296a8bf594abdf0b18281d9312e54fSatoshi Kataoka} 301f32869c6b6296a8bf594abdf0b18281d9312e54fSatoshi Kataoka 302ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi// Returns a probability of mapping index to keyIndex. 303ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagifloat ProximityInfoState::getProbability(const int index, const int keyIndex) const { 304feec20a692c9ffdecf7855a45531a12f129086caSatoshi Kataoka ASSERT(0 <= index && index < mSampledInputSize); 305ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi hash_map_compat<int, float>::const_iterator it = mCharProbabilities[index].find(keyIndex); 306ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi if (it != mCharProbabilities[index].end()) { 307ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi return it->second; 308ff74cc3e5e75fc0c6b9ffaa5e68d879775dc6115Keisuke Kuroyanagi } 309830ba67498c6da53b38212dd9ac5ba318a00de11Satoshi Kataoka return static_cast<float>(MAX_VALUE_FOR_WEIGHTING); 310806eba452423e5e5971ef096dfae3fed180db665Keisuke Kuroyanagi} 3113e8c58f68d53e6cc9dbf59201c7bdfb8ad04a1cdSatoshi Kataoka} // namespace latinime 312