1/*
2 * Copyright (C) 2008 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 _UI_KEY_CHARACTER_MAP_H
18#define _UI_KEY_CHARACTER_MAP_H
19
20#include <stdint.h>
21#include <utils/Vector.h>
22
23using namespace android;
24
25class KeyCharacterMap
26{
27public:
28    ~KeyCharacterMap();
29
30    // see the javadoc for android.text.method.KeyCharacterMap for what
31    // these do
32    unsigned short get(int keycode, int meta);
33    unsigned short getNumber(int keycode);
34    unsigned short getMatch(int keycode, const unsigned short* chars,
35                            int charsize, uint32_t modifiers);
36    unsigned short getDisplayLabel(int keycode);
37    bool getKeyData(int keycode, unsigned short *displayLabel,
38                    unsigned short *number, unsigned short* results);
39    inline unsigned int getKeyboardType() { return m_type; }
40    bool getEvents(uint16_t* chars, size_t len,
41                   Vector<int32_t>* keys, Vector<uint32_t>* modifiers);
42
43    static KeyCharacterMap* load(int id);
44
45    enum {
46        NUMERIC = 1,
47        Q14 = 2,
48        QWERTY = 3 // or AZERTY or whatever
49    };
50
51#define META_MASK 3
52
53private:
54    struct Key
55    {
56        int32_t keycode;
57        uint16_t display_label;
58        uint16_t number;
59        uint16_t data[META_MASK + 1];
60    };
61
62    KeyCharacterMap();
63    static KeyCharacterMap* try_file(const char* filename);
64    Key* find_key(int keycode);
65    bool find_char(uint16_t c, uint32_t* key, uint32_t* mods);
66
67    unsigned int m_type;
68    unsigned int m_keyCount;
69    Key* m_keys;
70};
71
72#endif // _UI_KEY_CHARACTER_MAP_H
73