3b77b723ca
PDCurses provides an alternative implementation of the curses library standard in addition to tinycurses. Where tinycurses is really tiny, PDCurses is more complete and provides virtually unlimited windows and the full API. The PDCurses code is brought in "vanilla", with all local changes residing in curses/pdcurses-backend/ In addition to a curses library, this change also provides libpanel (as part of the PDCurses code), and libform and libmenu which were derived from ncurses-5.9. As they rely on ncurses internals (and PDCurses is not ncurses), more changes were required for these libraries to work. The build system is extended to install the right set of header files depending on the selected curses implementation. Change-Id: I9e5b920f94b6510da01da2f656196a993170d1c5 Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Reviewed-on: http://review.coreboot.org/106 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
154 lines
3.5 KiB
C
154 lines
3.5 KiB
C
/* Public Domain Curses */
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#include <curspriv.h>
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RCSID("$Id: clear.c,v 1.35 2008/07/13 16:08:18 wmcbrine Exp $")
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/*man-start**************************************************************
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Name: clear
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Synopsis:
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int clear(void);
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int wclear(WINDOW *win);
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int erase(void);
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int werase(WINDOW *win);
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int clrtobot(void);
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int wclrtobot(WINDOW *win);
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int clrtoeol(void);
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int wclrtoeol(WINDOW *win);
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Description:
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erase() and werase() copy blanks (i.e. the background chtype) to
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every cell of the window.
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clear() and wclear() are similar to erase() and werase(), but
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they also call clearok() to ensure that the the window is
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cleared on the next wrefresh().
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clrtobot() and wclrtobot() clear the window from the current
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cursor position to the end of the window.
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clrtoeol() and wclrtoeol() clear the window from the current
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cursor position to the end of the current line.
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Return Value:
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All functions return OK on success and ERR on error.
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Portability X/Open BSD SYS V
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clear Y Y Y
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wclear Y Y Y
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erase Y Y Y
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werase Y Y Y
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clrtobot Y Y Y
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wclrtobot Y Y Y
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clrtoeol Y Y Y
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wclrtoeol Y Y Y
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**man-end****************************************************************/
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int wclrtoeol(WINDOW *win)
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{
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int x, y, minx;
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chtype blank, *ptr;
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PDC_LOG(("wclrtoeol() - called: Row: %d Col: %d\n",
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win->_cury, win->_curx));
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if (!win)
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return ERR;
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y = win->_cury;
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x = win->_curx;
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/* wrs (4/10/93) account for window background */
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blank = win->_bkgd;
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for (minx = x, ptr = &win->_y[y][x]; minx < win->_maxx; minx++, ptr++)
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*ptr = blank;
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if (x < win->_firstch[y] || win->_firstch[y] == _NO_CHANGE)
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win->_firstch[y] = x;
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win->_lastch[y] = win->_maxx - 1;
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PDC_sync(win);
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return OK;
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}
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int clrtoeol(void)
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{
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PDC_LOG(("clrtoeol() - called\n"));
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return wclrtoeol(stdscr);
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}
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int wclrtobot(WINDOW *win)
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{
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int savey = win->_cury;
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int savex = win->_curx;
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PDC_LOG(("wclrtobot() - called\n"));
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if (!win)
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return ERR;
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/* should this involve scrolling region somehow ? */
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if (win->_cury + 1 < win->_maxy)
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{
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win->_curx = 0;
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win->_cury++;
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for (; win->_maxy > win->_cury; win->_cury++)
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wclrtoeol(win);
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win->_cury = savey;
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win->_curx = savex;
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}
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wclrtoeol(win);
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PDC_sync(win);
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return OK;
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}
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int clrtobot(void)
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{
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PDC_LOG(("clrtobot() - called\n"));
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return wclrtobot(stdscr);
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}
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int werase(WINDOW *win)
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{
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PDC_LOG(("werase() - called\n"));
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if (wmove(win, 0, 0) == ERR)
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return ERR;
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return wclrtobot(win);
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}
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int erase(void)
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{
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PDC_LOG(("erase() - called\n"));
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return werase(stdscr);
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}
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int wclear(WINDOW *win)
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{
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PDC_LOG(("wclear() - called\n"));
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if (!win)
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return ERR;
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win->_clear = TRUE;
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return werase(win);
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}
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int clear(void)
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{
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PDC_LOG(("clear() - called\n"));
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return wclear(stdscr);
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}
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