1 /* 2 * Copyright (C) 2011 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 #ifndef LATINIME_PROXIMITY_INFO_H 18 #define LATINIME_PROXIMITY_INFO_H 19 20 #include "defines.h" 21 #include "hash_map_compat.h" 22 #include "jni.h" 23 #include "proximity_info_utils.h" 24 25 namespace latinime { 26 27 class Correction; 28 29 class ProximityInfo { 30 public: 31 ProximityInfo(JNIEnv *env, const jstring localeJStr, 32 const int keyboardWidth, const int keyboardHeight, const int gridWidth, 33 const int gridHeight, const int mostCommonKeyWidth, const int mostCommonKeyHeight, 34 const jintArray proximityChars, const int keyCount, const jintArray keyXCoordinates, 35 const jintArray keyYCoordinates, const jintArray keyWidths, const jintArray keyHeights, 36 const jintArray keyCharCodes, const jfloatArray sweetSpotCenterXs, 37 const jfloatArray sweetSpotCenterYs, const jfloatArray sweetSpotRadii); 38 ~ProximityInfo(); 39 bool hasSpaceProximity(const int x, const int y) const; 40 int getNormalizedSquaredDistance(const int inputIndex, const int proximityIndex) const; 41 float getNormalizedSquaredDistanceFromCenterFloatG( 42 const int keyId, const int x, const int y, 43 const float verticalScale) const; 44 bool sameAsTyped(const unsigned short *word, int length) const; 45 int getCodePointOf(const int keyIndex) const; 46 bool hasSweetSpotData(const int keyIndex) const { 47 // When there are no calibration data for a key, 48 // the radius of the key is assigned to zero. 49 return mSweetSpotRadii[keyIndex] > 0.0f; 50 } 51 float getSweetSpotRadiiAt(int keyIndex) const { return mSweetSpotRadii[keyIndex]; } 52 float getSweetSpotCenterXAt(int keyIndex) const { return mSweetSpotCenterXs[keyIndex]; } 53 float getSweetSpotCenterYAt(int keyIndex) const { return mSweetSpotCenterYs[keyIndex]; } 54 void calculateNearbyKeyCodes( 55 const int x, const int y, const int primaryKey, int *inputCodes) const; 56 bool hasTouchPositionCorrectionData() const { return HAS_TOUCH_POSITION_CORRECTION_DATA; } 57 int getMostCommonKeyWidth() const { return MOST_COMMON_KEY_WIDTH; } 58 int getMostCommonKeyWidthSquare() const { return MOST_COMMON_KEY_WIDTH_SQUARE; } 59 float getNormalizedSquaredMostCommonKeyHypotenuse() const { 60 return NORMALIZED_SQUARED_MOST_COMMON_KEY_HYPOTENUSE; 61 } 62 int getKeyCount() const { return KEY_COUNT; } 63 int getCellHeight() const { return CELL_HEIGHT; } 64 int getCellWidth() const { return CELL_WIDTH; } 65 int getGridWidth() const { return GRID_WIDTH; } 66 int getGridHeight() const { return GRID_HEIGHT; } 67 int getKeyboardWidth() const { return KEYBOARD_WIDTH; } 68 int getKeyboardHeight() const { return KEYBOARD_HEIGHT; } 69 float getKeyboardHypotenuse() const { return KEYBOARD_HYPOTENUSE; } 70 71 int getKeyCenterXOfCodePointG(int charCode) const; 72 int getKeyCenterYOfCodePointG(int charCode) const; 73 int getKeyCenterXOfKeyIdG(int keyId) const; 74 int getKeyCenterYOfKeyIdG(int keyId) const; 75 int getKeyKeyDistanceG(int keyId0, int keyId1) const; 76 77 AK_FORCE_INLINE void initializeProximities(const int *const inputCodes, 78 const int *const inputXCoordinates, const int *const inputYCoordinates, 79 const int inputSize, int *allInputCodes) const { 80 ProximityInfoUtils::initializeProximities(inputCodes, inputXCoordinates, inputYCoordinates, 81 inputSize, mKeyXCoordinates, mKeyYCoordinates, mKeyWidths, mKeyHeights, 82 mProximityCharsArray, CELL_HEIGHT, CELL_WIDTH, GRID_WIDTH, MOST_COMMON_KEY_WIDTH, 83 KEY_COUNT, mLocaleStr, &mCodeToKeyMap, allInputCodes); 84 } 85 86 AK_FORCE_INLINE int getKeyIndexOf(const int c) const { 87 return ProximityInfoUtils::getKeyIndexOf(KEY_COUNT, c, &mCodeToKeyMap); 88 } 89 90 AK_FORCE_INLINE bool isCodePointOnKeyboard(const int codePoint) const { 91 return getKeyIndexOf(codePoint) != NOT_AN_INDEX; 92 } 93 94 private: 95 DISALLOW_IMPLICIT_CONSTRUCTORS(ProximityInfo); 96 97 void initializeG(); 98 float calculateNormalizedSquaredDistance(const int keyIndex, const int inputIndex) const; 99 bool hasInputCoordinates() const; 100 101 const int GRID_WIDTH; 102 const int GRID_HEIGHT; 103 const int MOST_COMMON_KEY_WIDTH; 104 const int MOST_COMMON_KEY_WIDTH_SQUARE; 105 const int MOST_COMMON_KEY_HEIGHT; 106 const float NORMALIZED_SQUARED_MOST_COMMON_KEY_HYPOTENUSE; 107 const int CELL_WIDTH; 108 const int CELL_HEIGHT; 109 const int KEY_COUNT; 110 const int KEYBOARD_WIDTH; 111 const int KEYBOARD_HEIGHT; 112 const float KEYBOARD_HYPOTENUSE; 113 const bool HAS_TOUCH_POSITION_CORRECTION_DATA; 114 char mLocaleStr[MAX_LOCALE_STRING_LENGTH]; 115 int *mProximityCharsArray; 116 int mKeyXCoordinates[MAX_KEY_COUNT_IN_A_KEYBOARD]; 117 int mKeyYCoordinates[MAX_KEY_COUNT_IN_A_KEYBOARD]; 118 int mKeyWidths[MAX_KEY_COUNT_IN_A_KEYBOARD]; 119 int mKeyHeights[MAX_KEY_COUNT_IN_A_KEYBOARD]; 120 int mKeyCodePoints[MAX_KEY_COUNT_IN_A_KEYBOARD]; 121 float mSweetSpotCenterXs[MAX_KEY_COUNT_IN_A_KEYBOARD]; 122 float mSweetSpotCenterYs[MAX_KEY_COUNT_IN_A_KEYBOARD]; 123 float mSweetSpotRadii[MAX_KEY_COUNT_IN_A_KEYBOARD]; 124 hash_map_compat<int, int> mCodeToKeyMap; 125 126 int mKeyIndexToCodePointG[MAX_KEY_COUNT_IN_A_KEYBOARD]; 127 int mCenterXsG[MAX_KEY_COUNT_IN_A_KEYBOARD]; 128 int mCenterYsG[MAX_KEY_COUNT_IN_A_KEYBOARD]; 129 int mKeyKeyDistancesG[MAX_KEY_COUNT_IN_A_KEYBOARD][MAX_KEY_COUNT_IN_A_KEYBOARD]; 130 // TODO: move to correction.h 131 }; 132 } // namespace latinime 133 #endif // LATINIME_PROXIMITY_INFO_H 134
