diff options
Diffstat (limited to 'Utilities/cmpdcurses/pdcurses/deleteln.c')
| -rw-r--r-- | Utilities/cmpdcurses/pdcurses/deleteln.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/Utilities/cmpdcurses/pdcurses/deleteln.c b/Utilities/cmpdcurses/pdcurses/deleteln.c new file mode 100644 index 0000000..8e7563f --- /dev/null +++ b/Utilities/cmpdcurses/pdcurses/deleteln.c @@ -0,0 +1,211 @@ +/* PDCurses */ + +#include <curspriv.h> + +/*man-start************************************************************** + +deleteln +-------- + +### Synopsis + + int deleteln(void); + int wdeleteln(WINDOW *win); + int insdelln(int n); + int winsdelln(WINDOW *win, int n); + int insertln(void); + int winsertln(WINDOW *win); + + int mvdeleteln(int y, int x); + int mvwdeleteln(WINDOW *win, int y, int x); + int mvinsertln(int y, int x); + int mvwinsertln(WINDOW *win, int y, int x); + +### Description + + With the deleteln() and wdeleteln() functions, the line under the + cursor in the window is deleted. All lines below the current line are + moved up one line. The bottom line of the window is cleared. The + cursor position does not change. + + With the insertln() and winsertn() functions, a blank line is + inserted above the current line and the bottom line is lost. + + mvdeleteln(), mvwdeleteln(), mvinsertln() and mvwinsertln() allow + moving the cursor and inserting/deleting in one call. + +### Return Value + + All functions return OK on success and ERR on error. + +### Portability + X/Open ncurses NetBSD + deleteln Y Y Y + wdeleteln Y Y Y + mvdeleteln - - - + mvwdeleteln - - - + insdelln Y Y Y + winsdelln Y Y Y + insertln Y Y Y + winsertln Y Y Y + mvinsertln - - - + mvwinsertln - - - + +**man-end****************************************************************/ + +int wdeleteln(WINDOW *win) +{ + chtype blank, *temp, *ptr; + int y; + + PDC_LOG(("wdeleteln() - called\n")); + + if (!win) + return ERR; + + /* wrs (4/10/93) account for window background */ + + blank = win->_bkgd; + + temp = win->_y[win->_cury]; + + for (y = win->_cury; y < win->_bmarg; y++) + { + win->_y[y] = win->_y[y + 1]; + win->_firstch[y] = 0; + win->_lastch[y] = win->_maxx - 1; + } + + for (ptr = temp; (ptr - temp < win->_maxx); ptr++) + *ptr = blank; /* make a blank line */ + + if (win->_cury <= win->_bmarg) + { + win->_firstch[win->_bmarg] = 0; + win->_lastch[win->_bmarg] = win->_maxx - 1; + win->_y[win->_bmarg] = temp; + } + + return OK; +} + +int deleteln(void) +{ + PDC_LOG(("deleteln() - called\n")); + + return wdeleteln(stdscr); +} + +int mvdeleteln(int y, int x) +{ + PDC_LOG(("mvdeleteln() - called\n")); + + if (move(y, x) == ERR) + return ERR; + + return wdeleteln(stdscr); +} + +int mvwdeleteln(WINDOW *win, int y, int x) +{ + PDC_LOG(("mvwdeleteln() - called\n")); + + if (wmove(win, y, x) == ERR) + return ERR; + + return wdeleteln(win); +} + +int winsdelln(WINDOW *win, int n) +{ + int i; + + PDC_LOG(("winsdelln() - called\n")); + + if (!win) + return ERR; + + if (n > 0) + { + for (i = 0; i < n; i++) + if (winsertln(win) == ERR) + return ERR; + } + else if (n < 0) + { + n = -n; + for (i = 0; i < n; i++) + if (wdeleteln(win) == ERR) + return ERR; + } + + return OK; +} + +int insdelln(int n) +{ + PDC_LOG(("insdelln() - called\n")); + + return winsdelln(stdscr, n); +} + +int winsertln(WINDOW *win) +{ + chtype blank, *temp, *end; + int y; + + PDC_LOG(("winsertln() - called\n")); + + if (!win) + return ERR; + + /* wrs (4/10/93) account for window background */ + + blank = win->_bkgd; + + temp = win->_y[win->_maxy - 1]; + + for (y = win->_maxy - 1; y > win->_cury; y--) + { + win->_y[y] = win->_y[y - 1]; + win->_firstch[y] = 0; + win->_lastch[y] = win->_maxx - 1; + } + + win->_y[win->_cury] = temp; + + for (end = &temp[win->_maxx - 1]; temp <= end; temp++) + *temp = blank; + + win->_firstch[win->_cury] = 0; + win->_lastch[win->_cury] = win->_maxx - 1; + + return OK; +} + +int insertln(void) +{ + PDC_LOG(("insertln() - called\n")); + + return winsertln(stdscr); +} + +int mvinsertln(int y, int x) +{ + PDC_LOG(("mvinsertln() - called\n")); + + if (move(y, x) == ERR) + return ERR; + + return winsertln(stdscr); +} + +int mvwinsertln(WINDOW *win, int y, int x) +{ + PDC_LOG(("mvwinsertln() - called\n")); + + if (wmove(win, y, x) == ERR) + return ERR; + + return winsertln(win); +} |