comparison: pdcurses/delch.c
pdcurses/delch.c
- changeset 97
- 2d43f05b284c
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| 96:5314ebdcb38d | 97:2d43f05b284c |
|---|---|
| 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 } |
