4f85a1eb76
Change-Id: If881ec130833c7e7e62caa3d31e350a531f5bc8e Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/12398 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
161 lines
4.2 KiB
C
161 lines
4.2 KiB
C
/* Public Domain Curses */
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#include <curspriv.h>
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RCSID("$Id: touch.c,v 1.29 2008/07/13 16:08:18 wmcbrine Exp $")
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/*man-start**************************************************************
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Name: touch
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Synopsis:
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int touchwin(WINDOW *win);
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int touchline(WINDOW *win, int start, int count);
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int untouchwin(WINDOW *win);
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int wtouchln(WINDOW *win, int y, int n, int changed);
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bool is_linetouched(WINDOW *win, int line);
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bool is_wintouched(WINDOW *win);
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Description:
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touchwin() and touchline() throw away all information about
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which parts of the window have been touched, pretending that the
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entire window has been drawn on. This is sometimes necessary
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when using overlapping windows, since a change to one window
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will affect the other window, but the records of which lines
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have been changed in the other window will not reflect the
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change.
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untouchwin() marks all lines in the window as unchanged since
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the last call to wrefresh().
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wtouchln() makes n lines in the window, starting at line y, look
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as if they have (changed == 1) or have not (changed == 0) been
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changed since the last call to wrefresh().
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is_linetouched() returns TRUE if the specified line in the
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specified window has been changed since the last call to
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wrefresh().
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is_wintouched() returns TRUE if the specified window
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has been changed since the last call to wrefresh().
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Return Value:
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All functions return OK on success and ERR on error except
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is_wintouched() and is_linetouched().
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Portability X/Open BSD SYS V
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touchwin Y Y Y
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touchline Y - 3.0
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untouchwin Y - 4.0
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wtouchln Y Y Y
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is_linetouched Y - 4.0
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is_wintouched Y - 4.0
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**man-end****************************************************************/
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int touchwin(WINDOW *win)
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{
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int i;
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PDC_LOG(("touchwin() - called: Win=%x\n", win));
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if (!win)
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return ERR;
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for (i = 0; i < win->_maxy; i++)
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{
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win->_firstch[i] = 0;
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win->_lastch[i] = win->_maxx - 1;
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}
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return OK;
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}
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int touchline(WINDOW *win, int start, int count)
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{
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int i;
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PDC_LOG(("touchline() - called: win=%p start %d count %d\n",
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win, start, count));
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if (!win || start > win->_maxy || start + count > win->_maxy)
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return ERR;
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for (i = start; i < start + count; i++)
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{
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win->_firstch[i] = 0;
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win->_lastch[i] = win->_maxx - 1;
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}
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return OK;
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}
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int untouchwin(WINDOW *win)
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{
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int i;
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PDC_LOG(("untouchwin() - called: win=%p", win));
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if (!win)
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return ERR;
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for (i = 0; i < win->_maxy; i++)
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{
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win->_firstch[i] = _NO_CHANGE;
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win->_lastch[i] = _NO_CHANGE;
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}
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return OK;
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}
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int wtouchln(WINDOW *win, int y, int n, int changed)
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{
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int i;
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PDC_LOG(("wtouchln() - called: win=%p y=%d n=%d changed=%d\n",
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win, y, n, changed));
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if (!win || y > win->_maxy || y + n > win->_maxy)
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return ERR;
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for (i = y; i < y + n; i++)
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{
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if (changed)
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{
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win->_firstch[i] = 0;
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win->_lastch[i] = win->_maxx - 1;
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}
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else
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{
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win->_firstch[i] = _NO_CHANGE;
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win->_lastch[i] = _NO_CHANGE;
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}
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}
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return OK;
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}
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bool is_linetouched(WINDOW *win, int line)
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{
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PDC_LOG(("is_linetouched() - called: win=%p line=%d\n", win, line));
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if (!win || line > win->_maxy || line < 0)
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return FALSE;
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return (win->_firstch[line] != _NO_CHANGE) ? TRUE : FALSE;
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}
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bool is_wintouched(WINDOW *win)
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{
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int i;
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PDC_LOG(("is_wintouched() - called: win=%p\n", win));
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if (win)
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for (i = 0; i < win->_maxy; i++)
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if (win->_firstch[i] != _NO_CHANGE)
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return TRUE;
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return FALSE;
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}
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