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
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
|
/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
xrdp: A Remote Desktop Protocol server.
Copyright (C) Jay Sorg 2004
simple functions
*/
#include "xrdp.h"
/*****************************************************************************/
int rect_contains_pt(struct xrdp_rect* in, int x, int y)
{
if (x < in->left)
return 0;
if (y < in->top)
return 0;
if (x >= in->right)
return 0;
if (y >= in->bottom)
return 0;
return 1;
}
/*****************************************************************************/
int rect_intersect(struct xrdp_rect* in1, struct xrdp_rect* in2,
struct xrdp_rect* out)
{
int rv;
struct xrdp_rect dumby;
if (out == 0)
out = &dumby;
*out = *in1;
if (in2->left > in1->left)
out->left = in2->left;
if (in2->top > in1->top)
out->top = in2->top;
if (in2->right < in1->right)
out->right = in2->right;
if (in2->bottom < in1->bottom)
out->bottom = in2->bottom;
rv = !ISRECTEMPTY(*out);
if (!rv)
g_memset(out, 0, sizeof(struct xrdp_rect));
return rv;
}
/*****************************************************************************/
/* adjust the bounds to fit in the bitmap */
/* return false if there is nothing to draw else return true */
int check_bounds(struct xrdp_bitmap* b, int* x, int* y, int* cx, int* cy)
{
if (*x >= b->width)
return 0;
if (*y >= b->height)
return 0;
if (*x < 0)
{
*cx += *x;
*x = 0;
}
if (*y < 0)
{
*cy += *y;
*y = 0;
}
if (*cx <= 0)
return 0;
if (*cy <= 0)
return 0;
if (*x + *cx > b->width)
*cx = b->width - *x;
if (*y + *cy > b->height)
*cy = b->height - *y;
return 1;
}
/* scan codes
1 esc
2 1 or ?
3 2 or @
4 3 or #
5 4 or $
6 5 or %
7 6 or ^
8 7 or &
9 8 or *
10 9 or (
11 10 or )
12 11 or _
13 12 or +
14 backspace
15 tab
16 q or Q
17 w or W
18 e or E
19 r or R
20 t or T
21 y or Y
22 u or U
23 i or I
24 o or O
25 p or P
26 [ or {
27 ] or }
28 enter, keypad if ext
29 left or right ctrl, ext flag is right
30 a or A
31 s or S
32 d or D
33 f or F
34 g or G
35 h or H
36 j or J
37 k or K
38 l or L
39 ; or :
40 ' or "
41 ~
42 left shift
43 \
44 z or Z
45 x or X
46 c or C
47 v or V
48 b or B
49 n or N
50 m or M
51 , or <
52 . or >
53 / can be / on keypad, ext flag is keypad
54 right shift
55 * on keypad or print screen if ext
56 left or right alt, ext flag is right
57 space
58 caps lock
59 F1
60 F2
61 F3
62 F4
63 F5
64 F6
65 F7
66 F8
67 F9
68 F10
69 num lock
70 scroll lock
71 7 or home on keypad, ext flag is not keypad
72 8 or arrow up on keypad, ext flag is not keypad
73 9 or page up
74 -(minus) on keypad
75 4 or arrow left on keypad, ext flag is not keypad
76 middle(5 key) of keypad
77 6 or arrow right, can be on keypad, ext flag in not keypad
78 + on keypad
79 1 or end
80 2 or arrow down, can be on keypad, ext flag in not keypad
81 3 or page down
82 0 or insert on keypad, ext flag is not keypad
83 . or delete on keypad, ext flag is not keypad
87 F11
88 F12
91 left win key ext always on
92 right win key ext always on
93 menu key ext always on
*/
/* non shift chars */
char chars1[] = {'\0', '\0', '1', '2', '3', '4', '5', '6',
'7', '8', '9', '0', '-', '=', '\0', '\0',
'q', 'w', 'e', 'r', 't', 'y', 'u', 'i',
'o', 'p', '[', ']', '\0', '\0', 'a', 's',
'd', 'f', 'g', 'h', 'j', 'k', 'l', ';',
'\'', '`', '\0', '\\', 'z', 'x', 'c', 'v',
'b', 'n', 'm', ',', '.', '/', '\0', '*',
'\0', ' ', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '7',
'8', '9', '-', '4', '5', '6', '+', '1',
'2', '3', '0', '.', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'};
/* shift chars */
char chars2[] = {'\0', '\0', '!', '@', '#', '$', '%', '^',
'&', '*', '(', ')', '_', '+', '\0', '\0',
'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I',
'O', 'P', '{', '}', '\0', '\0', 'A', 'S',
'D', 'F', 'G', 'H', 'J', 'K', 'L', ':',
'"', '~', '\0', '|', 'Z', 'X', 'C', 'V',
'B', 'N', 'M', '<', '>', '?', '\0', '*',
'\0', ' ', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '7',
'8', '9', '-', '4', '5', '6', '+', '1',
'2', '3', '0', '.', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'};
/*****************************************************************************/
char get_char_from_scan_code(int device_flags, int scan_code, int* keys,
int caps_lock, int num_lock, int scroll_lock)
{
char rv;
int shift;
int ext;
shift = keys[42] || keys[54];
ext = device_flags & 0x0100;
rv = 0;
if (scan_code >= 128)
{
scan_code = scan_code % 128;
num_lock = 0;
}
if (!num_lock)
{
switch (scan_code)
{
case 71: /* 7 */
case 72: /* 8 */
case 73: /* 9 */
case 75: /* 4 */
case 76: /* 5 */
case 77: /* 6 */
case 79: /* 1 */
case 80: /* 2 */
case 81: /* 3 */
case 82: /* 0 */
case 83: /* . */
return rv;
}
}
if (ext)
{
if (scan_code == 53)
rv = '/';
}
else
{
if (shift)
rv = chars2[scan_code];
else
rv = chars1[scan_code];
if (rv >= 'a' && rv <= 'z' && caps_lock)
rv = rv - ('a' - 'A');
else if (rv >= 'A' && rv <= 'Z' && caps_lock)
rv = rv + ('a' - 'A');
}
return rv;
}
|
