1bc038c5e4
*Before (0) 13.18 (0.01%) (1) 93025.41 (62.06%) (2) 10.75 (0.01%) (3) 10.50 (0.01%) (4) 117.50 (0.08%) (5) 55678.98 (37.14%) (6) 9.09 (0.01%) (20) 883.84 (0.59%) Total 149898.24 (sum of others 149749.25) *After (0) 17.41 (0.01%) (1) 92673.41 (61.95%) (2) 10.62 (0.01%) (3) 10.37 (0.01%) (4) 120.96 (0.08%) (5) 55741.18 (37.26%) (6) 11.01 (0.01%) (20) 862.72 (0.58%) Total 149595.52 (sum of others 149447.68) Change-Id: Ia5a25a544fc388e4dab1e08d8f78d5117b249cf3
221 lines
8.2 KiB
C++
221 lines
8.2 KiB
C++
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef LATINIME_PROXIMITY_INFO_STATE_H
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#define LATINIME_PROXIMITY_INFO_STATE_H
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#include <assert.h>
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#include <stdint.h>
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#include <string>
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#include "additional_proximity_chars.h"
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#include "char_utils.h"
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#include "defines.h"
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namespace latinime {
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class ProximityInfo;
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class ProximityInfoState {
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public:
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static const int NORMALIZED_SQUARED_DISTANCE_SCALING_FACTOR_LOG_2 = 10;
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static const int NORMALIZED_SQUARED_DISTANCE_SCALING_FACTOR =
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1 << NORMALIZED_SQUARED_DISTANCE_SCALING_FACTOR_LOG_2;
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// The upper limit of the char code in mCodeToKeyIndex
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static const int MAX_CHAR_CODE = 127;
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static const float NOT_A_DISTANCE_FLOAT = -1.0f;
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static const int NOT_A_CODE = -1;
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/////////////////////////////////////////
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// Defined in proximity_info_state.cpp //
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/////////////////////////////////////////
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void initInputParams(
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const ProximityInfo* proximityInfo, const int32_t* inputCodes, const int inputLength,
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const int* xCoordinates, const int* yCoordinates);
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/////////////////////////////////////////
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// Defined here //
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/////////////////////////////////////////
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ProximityInfoState() {};
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inline const int* getProximityCharsAt(const int index) const {
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return mInputCodes + (index * MAX_PROXIMITY_CHARS_SIZE_INTERNAL);
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}
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inline unsigned short getPrimaryCharAt(const int index) const {
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return getProximityCharsAt(index)[0];
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}
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inline bool existsCharInProximityAt(const int index, const int c) const {
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const int *chars = getProximityCharsAt(index);
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int i = 0;
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while (chars[i] > 0 && i < MAX_PROXIMITY_CHARS_SIZE_INTERNAL) {
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if (chars[i++] == c) {
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return true;
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}
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}
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return false;
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}
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inline bool existsAdjacentProximityChars(const int index) const {
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if (index < 0 || index >= mInputLength) return false;
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const int currentChar = getPrimaryCharAt(index);
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const int leftIndex = index - 1;
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if (leftIndex >= 0 && existsCharInProximityAt(leftIndex, currentChar)) {
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return true;
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}
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const int rightIndex = index + 1;
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if (rightIndex < mInputLength && existsCharInProximityAt(rightIndex, currentChar)) {
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return true;
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}
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return false;
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}
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// In the following function, c is the current character of the dictionary word
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// currently examined.
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// currentChars is an array containing the keys close to the character the
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// user actually typed at the same position. We want to see if c is in it: if so,
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// then the word contains at that position a character close to what the user
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// typed.
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// What the user typed is actually the first character of the array.
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// proximityIndex is a pointer to the variable where getMatchedProximityId returns
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// the index of c in the proximity chars of the input index.
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// Notice : accented characters do not have a proximity list, so they are alone
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// in their list. The non-accented version of the character should be considered
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// "close", but not the other keys close to the non-accented version.
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inline ProximityType getMatchedProximityId(const int index,
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const unsigned short c, const bool checkProximityChars, int *proximityIndex = 0) const {
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const int *currentChars = getProximityCharsAt(index);
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const int firstChar = currentChars[0];
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const unsigned short baseLowerC = toBaseLowerCase(c);
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// The first char in the array is what user typed. If it matches right away,
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// that means the user typed that same char for this pos.
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if (firstChar == baseLowerC || firstChar == c) {
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return EQUIVALENT_CHAR;
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}
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if (!checkProximityChars) return UNRELATED_CHAR;
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// If the non-accented, lowercased version of that first character matches c,
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// then we have a non-accented version of the accented character the user
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// typed. Treat it as a close char.
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if (toBaseLowerCase(firstChar) == baseLowerC)
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return NEAR_PROXIMITY_CHAR;
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// Not an exact nor an accent-alike match: search the list of close keys
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int j = 1;
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while (j < MAX_PROXIMITY_CHARS_SIZE_INTERNAL
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&& currentChars[j] > ADDITIONAL_PROXIMITY_CHAR_DELIMITER_CODE) {
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const bool matched = (currentChars[j] == baseLowerC || currentChars[j] == c);
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if (matched) {
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if (proximityIndex) {
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*proximityIndex = j;
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}
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return NEAR_PROXIMITY_CHAR;
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}
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++j;
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}
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if (j < MAX_PROXIMITY_CHARS_SIZE_INTERNAL
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&& currentChars[j] == ADDITIONAL_PROXIMITY_CHAR_DELIMITER_CODE) {
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++j;
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while (j < MAX_PROXIMITY_CHARS_SIZE_INTERNAL
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&& currentChars[j] > ADDITIONAL_PROXIMITY_CHAR_DELIMITER_CODE) {
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const bool matched = (currentChars[j] == baseLowerC || currentChars[j] == c);
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if (matched) {
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if (proximityIndex) {
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*proximityIndex = j;
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}
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return ADDITIONAL_PROXIMITY_CHAR;
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}
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++j;
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}
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}
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// Was not included, signal this as an unrelated character.
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return UNRELATED_CHAR;
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}
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inline int getNormalizedSquaredDistance(
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const int inputIndex, const int proximityIndex) const {
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return mNormalizedSquaredDistances[
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inputIndex * MAX_PROXIMITY_CHARS_SIZE_INTERNAL + proximityIndex];
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}
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inline const unsigned short* getPrimaryInputWord() const {
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return mPrimaryInputWord;
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}
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inline bool touchPositionCorrectionEnabled() const {
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return mTouchPositionCorrectionEnabled;
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}
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private:
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DISALLOW_COPY_AND_ASSIGN(ProximityInfoState);
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/////////////////////////////////////////
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// Defined in proximity_info_state.cpp //
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/////////////////////////////////////////
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float calculateNormalizedSquaredDistance(const int keyIndex, const int inputIndex) const;
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float calculateSquaredDistanceFromSweetSpotCenter(
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const int keyIndex, const int inputIndex) const;
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/////////////////////////////////////////
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// Defined here //
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/////////////////////////////////////////
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inline float square(const float x) const { return x * x; }
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bool hasInputCoordinates() const {
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return mInputXCoordinates && mInputYCoordinates;
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}
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bool sameAsTyped(const unsigned short *word, int length) const {
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if (length != mInputLength) {
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return false;
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}
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const int *inputCodes = mInputCodes;
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while (length--) {
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if ((unsigned int) *inputCodes != (unsigned int) *word) {
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return false;
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}
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inputCodes += MAX_PROXIMITY_CHARS_SIZE_INTERNAL;
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word++;
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}
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return true;
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}
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// const
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const ProximityInfo *mProximityInfo;
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bool mHasTouchPositionCorrectionData;
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int mMostCommonKeyWidthSquare;
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std::string mLocaleStr;
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int mKeyCount;
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int mCellHeight;
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int mCellWidth;
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int mGridHeight;
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int mGridWidth;
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const int *mInputXCoordinates;
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const int *mInputYCoordinates;
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bool mTouchPositionCorrectionEnabled;
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int32_t mInputCodes[MAX_PROXIMITY_CHARS_SIZE_INTERNAL * MAX_WORD_LENGTH_INTERNAL];
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int mNormalizedSquaredDistances[MAX_PROXIMITY_CHARS_SIZE_INTERNAL * MAX_WORD_LENGTH_INTERNAL];
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int mInputLength;
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unsigned short mPrimaryInputWord[MAX_WORD_LENGTH_INTERNAL];
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};
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} // namespace latinime
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#endif // LATINIME_PROXIMITY_INFO_STATE_H
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