1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/**
* @file llkeyboard.h
* @brief Handler for assignable key bindings
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLKEYBOARD_H
#define LL_LLKEYBOARD_H
#include <map>
#include <boost/function.hpp>
#include "llstringtable.h"
#include "lltimer.h"
#include "indra_constants.h"
enum EKeystate
{
KEYSTATE_DOWN,
KEYSTATE_LEVEL,
KEYSTATE_UP
};
typedef boost::function<bool(EKeystate keystate)> LLKeyFunc;
typedef std::string (LLKeyStringTranslatorFunc)(std::string_view);
enum EKeyboardInsertMode
{
LL_KIM_INSERT,
LL_KIM_OVERWRITE
};
class LLWindowCallbacks;
class LLKeyboard
{
public:
LLKeyboard();
virtual ~LLKeyboard();
void resetKeyDownAndHandle();
void resetKeys();
F32 getCurKeyElapsedTime() { return getKeyDown(mCurScanKey) ? getKeyElapsedTime( mCurScanKey ) : 0.f; }
F32 getCurKeyElapsedFrameCount() { return getKeyDown(mCurScanKey) ? (F32)getKeyElapsedFrameCount( mCurScanKey ) : 0.f; }
bool getKeyDown(const KEY key) { return mKeyLevel[key]; }
bool getKeyRepeated(const KEY key) { return mKeyRepeated[key]; }
bool translateKey(const U16 os_key, KEY *translated_key);
U16 inverseTranslateKey(const KEY translated_key);
bool handleTranslatedKeyUp(KEY translated_key, U32 translated_mask); // Translated into "Linden" keycodes
bool handleTranslatedKeyDown(KEY translated_key, U32 translated_mask); // Translated into "Linden" keycodes
virtual bool handleKeyUp(const U16 key, MASK mask) = 0;
virtual bool handleKeyDown(const U16 key, MASK mask) = 0;
#ifdef LL_DARWIN
// We only actually use this for macOS.
virtual void handleModifier(MASK mask) = 0;
#endif // LL_DARWIN
// Asynchronously poll the control, alt, and shift keys and set the
// appropriate internal key masks.
virtual void resetMaskKeys() = 0;
virtual void scanKeyboard() = 0; // scans keyboard, calls functions as necessary
// Mac must differentiate between Command = Control for keyboard events
// and Command != Control for mouse events.
virtual MASK currentMask(bool for_mouse_event) = 0;
virtual KEY currentKey() { return mCurTranslatedKey; }
EKeyboardInsertMode getInsertMode() { return mInsertMode; }
void toggleInsertMode();
static bool maskFromString(const std::string& str, MASK *mask); // False on failure
static bool keyFromString(const std::string& str, KEY *key); // False on failure
static std::string stringFromKey(KEY key, bool translate = true);
static std::string stringFromMouse(EMouseClickType click, bool translate = true);
static std::string stringFromAccelerator( MASK accel_mask ); // separated for convinience, returns with "+": "Shift+" or "Shift+Alt+"...
static std::string stringFromAccelerator( MASK accel_mask, KEY key );
static std::string stringFromAccelerator(MASK accel_mask, EMouseClickType click);
void setCallbacks(LLWindowCallbacks *cbs) { mCallbacks = cbs; }
F32 getKeyElapsedTime( KEY key ); // Returns time in seconds since key was pressed.
S32 getKeyElapsedFrameCount( KEY key ); // Returns time in frames since key was pressed.
static void setStringTranslatorFunc( LLKeyStringTranslatorFunc *trans_func );
protected:
void addKeyName(KEY key, const std::string& name);
protected:
std::map<U16, KEY> mTranslateKeyMap; // Map of translations from OS keys to Linden KEYs
std::map<KEY, U16> mInvTranslateKeyMap; // Map of translations from Linden KEYs to OS keys
LLWindowCallbacks *mCallbacks;
LLTimer mKeyLevelTimer[KEY_COUNT]; // Time since level was set
S32 mKeyLevelFrameCount[KEY_COUNT]; // Frames since level was set
bool mKeyLevel[KEY_COUNT]; // Levels
bool mKeyRepeated[KEY_COUNT]; // Key was repeated
bool mKeyUp[KEY_COUNT]; // Up edge
bool mKeyDown[KEY_COUNT]; // Down edge
KEY mCurTranslatedKey;
KEY mCurScanKey; // Used during the scanKeyboard()
static LLKeyStringTranslatorFunc* mStringTranslator; // Used for l10n + PC/Mac/Linux accelerator labeling
EKeyboardInsertMode mInsertMode;
static std::map<KEY,std::string> sKeysToNames;
static std::map<std::string,KEY> sNamesToKeys;
};
// Interface to get key from assigned command
class LLKeyBindingToStringHandler
{
public:
virtual std::string getKeyBindingAsString(const std::string& mode, const std::string& control) const = 0;
};
extern LLKeyboard *gKeyboard;
#endif
|
