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333 lines
8.4 KiB
333 lines
8.4 KiB
/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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xrdp: A Remote Desktop Protocol server.
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Copyright (C) Jay Sorg 2004-2005
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simple functions
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*/
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#include "xrdp.h"
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/*****************************************************************************/
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int rect_contains_pt(struct xrdp_rect* in, int x, int y)
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{
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if (x < in->left)
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return 0;
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if (y < in->top)
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return 0;
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if (x >= in->right)
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return 0;
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if (y >= in->bottom)
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return 0;
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return 1;
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}
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/*****************************************************************************/
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int rect_intersect(struct xrdp_rect* in1, struct xrdp_rect* in2,
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struct xrdp_rect* out)
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{
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int rv;
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struct xrdp_rect dumby;
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if (out == 0)
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out = &dumby;
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*out = *in1;
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if (in2->left > in1->left)
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out->left = in2->left;
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if (in2->top > in1->top)
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out->top = in2->top;
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if (in2->right < in1->right)
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out->right = in2->right;
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if (in2->bottom < in1->bottom)
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out->bottom = in2->bottom;
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rv = !ISRECTEMPTY(*out);
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if (!rv)
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g_memset(out, 0, sizeof(struct xrdp_rect));
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return rv;
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}
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/*****************************************************************************/
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/* adjust the bounds to fit in the bitmap */
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/* return false if there is nothing to draw else return true */
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int check_bounds(struct xrdp_bitmap* b, int* x, int* y, int* cx, int* cy)
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{
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if (*x >= b->width)
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return 0;
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if (*y >= b->height)
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return 0;
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if (*x < 0)
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{
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*cx += *x;
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*x = 0;
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}
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if (*y < 0)
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{
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*cy += *y;
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*y = 0;
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}
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if (*cx <= 0)
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return 0;
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if (*cy <= 0)
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return 0;
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if (*x + *cx > b->width)
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*cx = b->width - *x;
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if (*y + *cy > b->height)
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*cy = b->height - *y;
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return 1;
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}
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/* scan codes
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1 esc
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2 1 or ?
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3 2 or @
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4 3 or #
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5 4 or $
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6 5 or %
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7 6 or ^
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8 7 or &
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9 8 or *
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10 9 or (
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11 10 or )
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12 11 or _
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13 12 or +
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14 backspace
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15 tab
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16 q or Q
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17 w or W
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18 e or E
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19 r or R
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20 t or T
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21 y or Y
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22 u or U
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23 i or I
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24 o or O
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25 p or P
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26 [ or {
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27 ] or }
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28 enter, keypad if ext
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29 left or right ctrl, ext flag is right
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30 a or A
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31 s or S
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32 d or D
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33 f or F
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34 g or G
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35 h or H
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36 j or J
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37 k or K
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38 l or L
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39 ; or :
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40 ' or "
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41 ~
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42 left shift
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43 \
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44 z or Z
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45 x or X
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46 c or C
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47 v or V
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48 b or B
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49 n or N
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50 m or M
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51 , or <
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52 . or >
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53 / can be / on keypad, ext flag is keypad
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54 right shift
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55 * on keypad or print screen if ext
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56 left or right alt, ext flag is right
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57 space
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58 caps lock
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59 F1
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60 F2
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61 F3
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62 F4
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63 F5
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64 F6
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65 F7
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66 F8
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67 F9
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68 F10
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69 num lock
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70 scroll lock
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71 7 or home on keypad, ext flag is not keypad
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72 8 or arrow up on keypad, ext flag is not keypad
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73 9 or page up
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74 -(minus) on keypad
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75 4 or arrow left on keypad, ext flag is not keypad
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76 middle(5 key) of keypad
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77 6 or arrow right, can be on keypad, ext flag in not keypad
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78 + on keypad
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79 1 or end
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80 2 or arrow down, can be on keypad, ext flag in not keypad
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81 3 or page down
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82 0 or insert on keypad, ext flag is not keypad
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83 . or delete on keypad, ext flag is not keypad
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87 F11
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88 F12
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91 left win key ext always on
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92 right win key ext always on
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93 menu key ext always on
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*/
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/* non shift chars */
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char chars1[] = {'\0', '\0', '1', '2', '3', '4', '5', '6',
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'7', '8', '9', '0', '-', '=', '\0', '\0',
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'q', 'w', 'e', 'r', 't', 'y', 'u', 'i',
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'o', 'p', '[', ']', '\0', '\0', 'a', 's',
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'd', 'f', 'g', 'h', 'j', 'k', 'l', ';',
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'\'', '`', '\0', '\\', 'z', 'x', 'c', 'v',
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'b', 'n', 'm', ',', '.', '/', '\0', '*',
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'\0', ' ', '\0', '\0', '\0', '\0', '\0', '\0',
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'\0', '\0', '\0', '\0', '\0', '\0', '\0', '7',
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'8', '9', '-', '4', '5', '6', '+', '1',
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'2', '3', '0', '.', '\0', '\0', '\0', '\0',
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'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
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'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
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'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
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'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
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'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'};
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/* shift chars */
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char chars2[] = {'\0', '\0', '!', '@', '#', '$', '%', '^',
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'&', '*', '(', ')', '_', '+', '\0', '\0',
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'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I',
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'O', 'P', '{', '}', '\0', '\0', 'A', 'S',
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'D', 'F', 'G', 'H', 'J', 'K', 'L', ':',
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'"', '~', '\0', '|', 'Z', 'X', 'C', 'V',
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'B', 'N', 'M', '<', '>', '?', '\0', '*',
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'\0', ' ', '\0', '\0', '\0', '\0', '\0', '\0',
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'\0', '\0', '\0', '\0', '\0', '\0', '\0', '7',
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'8', '9', '-', '4', '5', '6', '+', '1',
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'2', '3', '0', '.', '\0', '\0', '\0', '\0',
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'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
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'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
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'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
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'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
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'\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'};
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/*****************************************************************************/
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char get_char_from_scan_code(int device_flags, int scan_code, int* keys,
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int caps_lock, int num_lock, int scroll_lock)
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{
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char rv;
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int shift;
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int ext;
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shift = keys[42] || keys[54];
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ext = device_flags & 0x0100;
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rv = 0;
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if (scan_code >= 128)
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{
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scan_code = scan_code % 128;
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num_lock = 0;
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}
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if (!num_lock)
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{
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switch (scan_code)
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{
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case 71: /* 7 */
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case 72: /* 8 */
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case 73: /* 9 */
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case 75: /* 4 */
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case 76: /* 5 */
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case 77: /* 6 */
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case 79: /* 1 */
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case 80: /* 2 */
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case 81: /* 3 */
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case 82: /* 0 */
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case 83: /* . */
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return rv;
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}
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}
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if (ext)
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{
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if (scan_code == 53)
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rv = '/';
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}
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else
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{
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if (shift)
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rv = chars2[scan_code];
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else
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rv = chars1[scan_code];
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if (rv >= 'a' && rv <= 'z' && caps_lock)
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rv = rv - ('a' - 'A');
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else if (rv >= 'A' && rv <= 'Z' && caps_lock)
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rv = rv + ('a' - 'A');
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}
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return rv;
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}
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/*****************************************************************************/
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/* add a ch at index position in text, index starts at 0 */
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/* if index = -1 add it to the end */
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int add_char_at(char* text, char ch, int index)
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{
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int len;
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int i;
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len = g_strlen(text);
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if (index >= len || index < 0)
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{
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text[len] = ch;
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text[len + 1] = 0;
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return 0;
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}
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for (i = len - 1; i >= index; i--)
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{
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text[i + 1] = text[i];
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}
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text[i + 1] = ch;
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text[len + 1] = 0;
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return 0;
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}
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/*****************************************************************************/
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/* remove a ch at index position in text, index starts at 0 */
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/* if index = -1 remove it from the end */
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int remove_char_at(char* text, int index)
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{
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int len;
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int i;
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len = g_strlen(text);
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if (len <= 0)
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{
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return 0;
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}
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if (index >= len - 1 || index < 0)
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{
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text[len - 1] = 0;
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return 0;
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}
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for (i = index; i < len - 1; i++)
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{
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text[i] = text[i + 1];
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}
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text[len - 1] = 0;
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return 0;
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}
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/*****************************************************************************/
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int set_string(char** in_str, char* in)
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{
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if (in_str == 0)
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{
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return 0;
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}
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g_free(*in_str);
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*in_str = g_strdup(in);
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return 0;
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}
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