diff options
Diffstat (limited to 'payloads/libpayload/curses/PDCurses-3.4/pdcurses/touch.c')
| -rw-r--r-- | payloads/libpayload/curses/PDCurses-3.4/pdcurses/touch.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/payloads/libpayload/curses/PDCurses-3.4/pdcurses/touch.c b/payloads/libpayload/curses/PDCurses-3.4/pdcurses/touch.c new file mode 100644 index 0000000000..9355aa1f40 --- /dev/null +++ b/payloads/libpayload/curses/PDCurses-3.4/pdcurses/touch.c @@ -0,0 +1,160 @@ +/* Public Domain Curses */ + +#include <curspriv.h> + +RCSID("$Id: touch.c,v 1.29 2008/07/13 16:08:18 wmcbrine Exp $") + +/*man-start************************************************************** + + Name: touch + + Synopsis: + int touchwin(WINDOW *win); + int touchline(WINDOW *win, int start, int count); + int untouchwin(WINDOW *win); + int wtouchln(WINDOW *win, int y, int n, int changed); + bool is_linetouched(WINDOW *win, int line); + bool is_wintouched(WINDOW *win); + + Description: + touchwin() and touchline() throw away all information about + which parts of the window have been touched, pretending that the + entire window has been drawn on. This is sometimes necessary + when using overlapping windows, since a change to one window + will affect the other window, but the records of which lines + have been changed in the other window will not reflect the + change. + + untouchwin() marks all lines in the window as unchanged since + the last call to wrefresh(). + + wtouchln() makes n lines in the window, starting at line y, look + as if they have (changed == 1) or have not (changed == 0) been + changed since the last call to wrefresh(). + + is_linetouched() returns TRUE if the specified line in the + specified window has been changed since the last call to + wrefresh(). + + is_wintouched() returns TRUE if the specified window + has been changed since the last call to wrefresh(). + + Return Value: + All functions return OK on success and ERR on error except + is_wintouched() and is_linetouched(). + + Portability X/Open BSD SYS V + touchwin Y Y Y + touchline Y - 3.0 + untouchwin Y - 4.0 + wtouchln Y Y Y + is_linetouched Y - 4.0 + is_wintouched Y - 4.0 + +**man-end****************************************************************/ + +int touchwin(WINDOW *win) +{ + int i; + + PDC_LOG(("touchwin() - called: Win=%x\n", win)); + + if (!win) + return ERR; + + for (i = 0; i < win->_maxy; i++) + { + win->_firstch[i] = 0; + win->_lastch[i] = win->_maxx - 1; + } + + return OK; +} + +int touchline(WINDOW *win, int start, int count) +{ + int i; + + PDC_LOG(("touchline() - called: win=%p start %d count %d\n", + win, start, count)); + + if (!win || start > win->_maxy || start + count > win->_maxy) + return ERR; + + for (i = start; i < start + count; i++) + { + win->_firstch[i] = 0; + win->_lastch[i] = win->_maxx - 1; + } + + return OK; +} + +int untouchwin(WINDOW *win) +{ + int i; + + PDC_LOG(("untouchwin() - called: win=%p", win)); + + if (!win) + return ERR; + + for (i = 0; i < win->_maxy; i++) + { + win->_firstch[i] = _NO_CHANGE; + win->_lastch[i] = _NO_CHANGE; + } + + return OK; +} + +int wtouchln(WINDOW *win, int y, int n, int changed) +{ + int i; + + PDC_LOG(("wtouchln() - called: win=%p y=%d n=%d changed=%d\n", + win, y, n, changed)); + + if (!win || y > win->_maxy || y + n > win->_maxy) + return ERR; + + for (i = y; i < y + n; i++) + { + if (changed) + { + win->_firstch[i] = 0; + win->_lastch[i] = win->_maxx - 1; + } + else + { + win->_firstch[i] = _NO_CHANGE; + win->_lastch[i] = _NO_CHANGE; + } + } + + return OK; +} + +bool is_linetouched(WINDOW *win, int line) +{ + PDC_LOG(("is_linetouched() - called: win=%p line=%d\n", win, line)); + + if (!win || line > win->_maxy || line < 0) + return FALSE; + + return (win->_firstch[line] != _NO_CHANGE) ? TRUE : FALSE; +} + +bool is_wintouched(WINDOW *win) +{ + int i; + + PDC_LOG(("is_wintouched() - called: win=%p\n", win)); + + if (win) + for (i = 0; i < win->_maxy; i++) + if (win->_firstch[i] != _NO_CHANGE) + return TRUE; + + return FALSE; +} |