| Patrick Georgi | 3b77b72 | 2011-07-07 15:41:53 +0200 | [diff] [blame] | 1 | /* Public Domain Curses */ |
| 2 | |
| 3 | #include <curspriv.h> |
| 4 | |
| 5 | RCSID("$Id: delch.c,v 1.33 2008/07/13 16:08:18 wmcbrine Exp $") |
| 6 | |
| 7 | /*man-start************************************************************** |
| 8 | |
| 9 | Name: delch |
| 10 | |
| 11 | Synopsis: |
| 12 | int delch(void); |
| 13 | int wdelch(WINDOW *win); |
| 14 | int mvdelch(int y, int x); |
| 15 | int mvwdelch(WINDOW *win, int y, int x); |
| 16 | |
| 17 | Description: |
| 18 | The character under the cursor in the window is deleted. All |
| 19 | characters to the right on the same line are moved to the left |
| 20 | one position and the last character on the line is filled with |
| 21 | a blank. The cursor position does not change (after moving to |
| 22 | y, x if coordinates are specified). |
| 23 | |
| 24 | Return Value: |
| 25 | All functions return OK on success and ERR on error. |
| 26 | |
| 27 | Portability X/Open BSD SYS V |
| 28 | delch Y Y Y |
| 29 | wdelch Y Y Y |
| 30 | mvdelch Y Y Y |
| 31 | mvwdelch Y Y Y |
| 32 | |
| 33 | **man-end****************************************************************/ |
| 34 | |
| 35 | #include <string.h> |
| 36 | |
| 37 | int wdelch(WINDOW *win) |
| 38 | { |
| 39 | int y, x, maxx; |
| 40 | chtype *temp1; |
| 41 | |
| 42 | PDC_LOG(("wdelch() - called\n")); |
| 43 | |
| 44 | if (!win) |
| 45 | return ERR; |
| 46 | |
| 47 | y = win->_cury; |
| 48 | x = win->_curx; |
| 49 | maxx = win->_maxx - 1; |
| 50 | temp1 = &win->_y[y][x]; |
| 51 | |
| 52 | memmove(temp1, temp1 + 1, (maxx - x) * sizeof(chtype)); |
| 53 | |
| 54 | /* wrs (4/10/93) account for window background */ |
| 55 | |
| 56 | win->_y[y][maxx] = win->_bkgd; |
| 57 | |
| 58 | win->_lastch[y] = maxx; |
| 59 | |
| 60 | if ((win->_firstch[y] == _NO_CHANGE) || (win->_firstch[y] > x)) |
| 61 | win->_firstch[y] = x; |
| 62 | |
| 63 | PDC_sync(win); |
| 64 | |
| 65 | return OK; |
| 66 | } |
| 67 | |
| 68 | int delch(void) |
| 69 | { |
| 70 | PDC_LOG(("delch() - called\n")); |
| 71 | |
| 72 | return wdelch(stdscr); |
| 73 | } |
| 74 | |
| 75 | int mvdelch(int y, int x) |
| 76 | { |
| 77 | PDC_LOG(("mvdelch() - called\n")); |
| 78 | |
| 79 | if (move(y, x) == ERR) |
| 80 | return ERR; |
| 81 | |
| 82 | return wdelch(stdscr); |
| 83 | } |
| 84 | |
| 85 | int mvwdelch(WINDOW *win, int y, int x) |
| 86 | { |
| 87 | PDC_LOG(("mvwdelch() - called\n")); |
| 88 | |
| 89 | if (wmove(win, y, x) == ERR) |
| 90 | return ERR; |
| 91 | |
| 92 | return wdelch(win); |
| 93 | } |