File: Keyboard.cpp

package info (click to toggle)
openni2 2.2.0.33%2Bdfsg-15
  • links: PTS, VCS
  • area: main
  • in suites: bookworm, bullseye
  • size: 22,232 kB
  • sloc: cpp: 111,183; ansic: 35,511; sh: 10,542; python: 1,313; java: 952; makefile: 575; xml: 12
file content (231 lines) | stat: -rw-r--r-- 6,391 bytes parent folder | download | duplicates (4)
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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
/*****************************************************************************
*                                                                            *
*  OpenNI 2.x Alpha                                                          *
*  Copyright (C) 2012 PrimeSense Ltd.                                        *
*                                                                            *
*  This file is part of OpenNI.                                              *
*                                                                            *
*  Licensed under the Apache License, Version 2.0 (the "License");           *
*  you may not use this file except in compliance with the License.          *
*  You may obtain a copy of the License at                                   *
*                                                                            *
*      http://www.apache.org/licenses/LICENSE-2.0                            *
*                                                                            *
*  Unless required by applicable law or agreed to in writing, software       *
*  distributed under the License is distributed on an "AS IS" BASIS,         *
*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
*  See the License for the specific language governing permissions and       *
*  limitations under the License.                                            *
*                                                                            *
*****************************************************************************/
// --------------------------------
// Includes
// --------------------------------
#include "Keyboard.h"
#include <string.h>
#include <XnOS.h>

// --------------------------------
// Types
// --------------------------------
typedef struct XnKeyboardAction
{
	char key;
	const char* csDescription;
	ActionFunc pCallbackFunc;
	int nCallbackArg;
} XnKeyboardAction;

typedef struct XnKeyboardGroup
{
	const char* csName;
	int nFirst;
	int nLast;
	int nSpecialFirst;
	int nSpecialLast;
} XnKeyboardGroup;

// --------------------------------
// Global Variables
// --------------------------------
XnKeyboardAction g_KeyboardMap[500];
XnKeyboardAction g_KeyboardSpecialMap[100];
XnKeyboardGroup g_Groups[20];
int g_nRegisteredKeys = 0;
int g_nRegisteredSpecialKeys = 0;
int g_nRegisteredGroups = 0;

static bool g_bUserInput = false;
static bool g_bUserInputNumbersOnly = false;
static char g_strUserInput[1024];
static int g_userInputStartPos = 0;
static KeyboardInputEnded g_userInputCallback;

// --------------------------------
// Code
// --------------------------------
void startKeyboardMap()
{
	g_nRegisteredKeys = 0;
}

void startKeyboardGroup(const char* csName)
{
	g_Groups[g_nRegisteredGroups].csName = csName;
	g_Groups[g_nRegisteredGroups].nFirst = g_nRegisteredKeys;
	g_Groups[g_nRegisteredGroups].nSpecialFirst = g_nRegisteredSpecialKeys;
}

void registerKey(unsigned char key, const char* Description, ActionFunc func, int arg)
{
	XnKeyboardAction* pKey = &g_KeyboardMap[g_nRegisteredKeys++];
	pKey->key = key;
	pKey->csDescription = Description;
	pKey->pCallbackFunc = func;
	pKey->nCallbackArg = arg;
}

void registerSpecialKey(char key, const char* Description, ActionFunc func, int arg)
{
	XnKeyboardAction* pKey = &g_KeyboardSpecialMap[g_nRegisteredSpecialKeys++];
	pKey->key = key;
	pKey->csDescription = Description;
	pKey->pCallbackFunc = func;
	pKey->nCallbackArg = arg;
}

void endKeyboardGroup()
{
	g_Groups[g_nRegisteredGroups].nLast = g_nRegisteredKeys;
	g_Groups[g_nRegisteredGroups].nSpecialLast = g_nRegisteredSpecialKeys;
	g_nRegisteredGroups++;
}

void endKeyboardMap()
{

}

char getRegisteredKey(ActionFunc func, int arg)
{
	for (int i = 0; i < g_nRegisteredKeys; ++i)
	{
		if (g_KeyboardMap[i].pCallbackFunc == func && g_KeyboardMap[i].nCallbackArg == arg)
			return g_KeyboardMap[i].key;
	}

	return 0;
}

int getRegisteredSpecialKey(ActionFunc func, int arg)
{
	for (int i = 0; i < g_nRegisteredKeys; ++i)
	{
		if (g_KeyboardSpecialMap[i].pCallbackFunc == func && g_KeyboardSpecialMap[i].nCallbackArg == arg)
			return g_KeyboardSpecialMap[i].key;
	}

	return 0;
}

void handleKey(unsigned char k)
{
	if (g_bUserInput)
	{
		if (k == 13 || k == 27) // ENTER or ESC
		{
			if (g_userInputCallback != NULL)
			{
				g_userInputCallback(k == 13, &g_strUserInput[g_userInputStartPos]);
			}

			g_bUserInput = false;
		}

		if (g_bUserInputNumbersOnly && (k < '0' || k > '9'))
		{
			// ignore
			return;
		}

		int len = (int)strlen(g_strUserInput);
		g_strUserInput[len] = k;
		g_strUserInput[++len] = '\0';

		return;
	}

	for (int i = 0; i < g_nRegisteredKeys; ++i)
	{
		if (k == g_KeyboardMap[i].key)
		{
			g_KeyboardMap[i].pCallbackFunc(g_KeyboardMap[i].nCallbackArg);
			return;
		}
	}
}

void handleSpecialKey(int k)
{
	for (int i = 0; i < g_nRegisteredSpecialKeys; ++i)
	{
		if (k == g_KeyboardSpecialMap[i].key)
		{
			g_KeyboardSpecialMap[i].pCallbackFunc(g_KeyboardSpecialMap[i].nCallbackArg);
			return;
		}
	}
}

int findGroup(const char* csGroupName)
{
	for (int i = 0; i < g_nRegisteredGroups; ++i)
	{
		if (strcmp(g_Groups[i].csName, csGroupName) == 0)
			return i;
	}

	return -1;
}

void getGroupItems(const char* csGroupName, int *pSpecialKeys, unsigned char* pKeys, const char** pDescs, int* pSpecialCount, int* pCount)
{
	// find group
	int nGroup = findGroup(csGroupName);

	int nCount = 0;
	for (int nEntry = g_Groups[nGroup].nSpecialFirst; nEntry < g_Groups[nGroup].nSpecialLast; nEntry++, nCount++)
	{
		pSpecialKeys[nCount] = g_KeyboardSpecialMap[nEntry].key;
		pDescs[nCount]       = g_KeyboardSpecialMap[nEntry].csDescription;
	}
	*pSpecialCount = nCount;

	nCount = 0;
	for (int nEntry = g_Groups[nGroup].nFirst; nEntry < g_Groups[nGroup].nLast; nEntry++, nCount++)
	{
		pKeys[nCount] = g_KeyboardMap[nEntry].key;
		pDescs[nCount + *pSpecialCount] = g_KeyboardMap[nEntry].csDescription;
	}

	*pCount = nCount;
}

void startKeyboardInputMode(const char* message, bool numbersOnly, KeyboardInputEnded callback)
{
	g_bUserInput = true;
	g_bUserInputNumbersOnly = numbersOnly;
	xnOSStrCopy(g_strUserInput, message, sizeof(g_strUserInput));
	g_userInputStartPos = (int)strlen(message);
	g_userInputCallback = callback;
}

const char* getCurrentKeyboardInputMessage()
{
	return g_strUserInput;
}

bool isInKeyboardInputMode()
{
	return g_bUserInput;
}