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 <stdint.h> 21 22 #include "defines.h" 23 #include "hash_map_compat.h" 24 #include "jni.h" 25 26 namespace latinime { 27 28 class Correction; 29 30 class ProximityInfo { 31 public: 32 ProximityInfo(JNIEnv *env, const jstring localeJStr, const int maxProximityCharsSize, 33 const int keyboardWidth, const int keyboardHeight, const int gridWidth, 34 const int gridHeight, const int mostCommonKeyWidth, const jintArray proximityChars, 35 const int keyCount, const jintArray keyXCoordinates, const jintArray keyYCoordinates, 36 const jintArray keyWidths, const jintArray keyHeights, const jintArray keyCharCodes, 37 const jfloatArray sweetSpotCenterXs, const jfloatArray sweetSpotCenterYs, 38 const jfloatArray sweetSpotRadii); 39 ~ProximityInfo(); 40 bool hasSpaceProximity(const int x, const int y) const; 41 int getNormalizedSquaredDistance(const int inputIndex, const int proximityIndex) const; 42 float getNormalizedSquaredDistanceFromCenterFloatG( 43 const int keyId, const int x, const int y) const; 44 bool sameAsTyped(const unsigned short *word, int length) const; 45 int getKeyIndexOf(const int c) const; 46 int getCodePointOf(const int keyIndex) const; 47 bool hasSweetSpotData(const int keyIndex) const { 48 // When there are no calibration data for a key, 49 // the radius of the key is assigned to zero. 50 return mSweetSpotRadii[keyIndex] > 0.0f; 51 } 52 float getSweetSpotRadiiAt(int keyIndex) const { 53 return mSweetSpotRadii[keyIndex]; 54 } 55 float getSweetSpotCenterXAt(int keyIndex) const { 56 return mSweetSpotCenterXs[keyIndex]; 57 } 58 float getSweetSpotCenterYAt(int keyIndex) const { 59 return mSweetSpotCenterYs[keyIndex]; 60 } 61 void calculateNearbyKeyCodes( 62 const int x, const int y, const int32_t primaryKey, int *inputCodes) const; 63 64 bool hasTouchPositionCorrectionData() const { 65 return HAS_TOUCH_POSITION_CORRECTION_DATA; 66 } 67 68 int getMostCommonKeyWidth() const { 69 return MOST_COMMON_KEY_WIDTH; 70 } 71 72 int getMostCommonKeyWidthSquare() const { 73 return MOST_COMMON_KEY_WIDTH_SQUARE; 74 } 75 76 const char *getLocaleStr() const { 77 return mLocaleStr; 78 } 79 80 int getKeyCount() const { 81 return KEY_COUNT; 82 } 83 84 int getCellHeight() const { 85 return CELL_HEIGHT; 86 } 87 88 int getCellWidth() const { 89 return CELL_WIDTH; 90 } 91 92 int getGridWidth() const { 93 return GRID_WIDTH; 94 } 95 96 int getGridHeight() const { 97 return GRID_HEIGHT; 98 } 99 100 int getKeyboardWidth() const { 101 return KEYBOARD_WIDTH; 102 } 103 104 int getKeyboardHeight() const { 105 return KEYBOARD_HEIGHT; 106 } 107 108 int getKeyCenterXOfCodePointG(int charCode) const; 109 int getKeyCenterYOfCodePointG(int charCode) const; 110 int getKeyCenterXOfKeyIdG(int keyId) const; 111 int getKeyCenterYOfKeyIdG(int keyId) const; 112 int getKeyKeyDistanceG(int key0, int key1) const; 113 114 private: 115 DISALLOW_IMPLICIT_CONSTRUCTORS(ProximityInfo); 116 static const float NOT_A_DISTANCE_FLOAT; 117 118 int getStartIndexFromCoordinates(const int x, const int y) const; 119 void initializeG(); 120 float calculateNormalizedSquaredDistance(const int keyIndex, const int inputIndex) const; 121 bool hasInputCoordinates() const; 122 int squaredDistanceToEdge(const int keyId, const int x, const int y) const; 123 bool isOnKey(const int keyId, const int x, const int y) const { 124 if (keyId < 0) return true; // NOT_A_ID is -1, but return whenever < 0 just in case 125 const int left = mKeyXCoordinates[keyId]; 126 const int top = mKeyYCoordinates[keyId]; 127 const int right = left + mKeyWidths[keyId] + 1; 128 const int bottom = top + mKeyHeights[keyId]; 129 return left < right && top < bottom && x >= left && x < right && y >= top && y < bottom; 130 } 131 132 const int MAX_PROXIMITY_CHARS_SIZE; 133 const int GRID_WIDTH; 134 const int GRID_HEIGHT; 135 const int MOST_COMMON_KEY_WIDTH; 136 const int MOST_COMMON_KEY_WIDTH_SQUARE; 137 const int CELL_WIDTH; 138 const int CELL_HEIGHT; 139 const int KEY_COUNT; 140 const int KEYBOARD_WIDTH; 141 const int KEYBOARD_HEIGHT; 142 const bool HAS_TOUCH_POSITION_CORRECTION_DATA; 143 char mLocaleStr[MAX_LOCALE_STRING_LENGTH]; 144 int32_t *mProximityCharsArray; 145 int32_t mKeyXCoordinates[MAX_KEY_COUNT_IN_A_KEYBOARD]; 146 int32_t mKeyYCoordinates[MAX_KEY_COUNT_IN_A_KEYBOARD]; 147 int32_t mKeyWidths[MAX_KEY_COUNT_IN_A_KEYBOARD]; 148 int32_t mKeyHeights[MAX_KEY_COUNT_IN_A_KEYBOARD]; 149 int32_t mKeyCodePoints[MAX_KEY_COUNT_IN_A_KEYBOARD]; 150 float mSweetSpotCenterXs[MAX_KEY_COUNT_IN_A_KEYBOARD]; 151 float mSweetSpotCenterYs[MAX_KEY_COUNT_IN_A_KEYBOARD]; 152 float mSweetSpotRadii[MAX_KEY_COUNT_IN_A_KEYBOARD]; 153 hash_map_compat<int, int> mCodeToKeyMap; 154 155 int mKeyIndexToCodePointG[MAX_KEY_COUNT_IN_A_KEYBOARD]; 156 int mCenterXsG[MAX_KEY_COUNT_IN_A_KEYBOARD]; 157 int mCenterYsG[MAX_KEY_COUNT_IN_A_KEYBOARD]; 158 int mKeyKeyDistancesG[MAX_KEY_COUNT_IN_A_KEYBOARD][MAX_KEY_COUNT_IN_A_KEYBOARD]; 159 // TODO: move to correction.h 160 }; 161 } // namespace latinime 162 #endif // LATINIME_PROXIMITY_INFO_H 163
