/* 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; } /*****************************************************************************/ /* add a ch at index position in text, index starts at 0 */ /* if index = -1 add it to the end */ int add_char_at(char* text, char ch, int index) { int len; int i; len = g_strlen(text); if (index >= len || index < 0) { text[len] = ch; text[len + 1] = 0; return 0; } for (i = len - 1; i >= index; i--) text[i + 1] = text[i]; text[i + 1] = ch; text[len + 1] = 0; return 0; } /*****************************************************************************/ /* remove a ch at index position in text, index starts at 0 */ /* if index = -1 remove it from the end */ int remove_char_at(char* text, int index) { int len; int i; len = g_strlen(text); if (len <= 0) return 0; if (index >= len - 1 || index < 0) { text[len - 1] = 0; return 0; } for (i = index; i < len - 1; i++) text[i] = text[i + 1]; text[len - 1] = 0; return 0; }