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54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
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/* This work is copyrighted. See COPYRIGHT.OLD & COPYRIGHT.NEW for *
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* details. If they are missing then this copy is in violation of *
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* the copyright conditions. */
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/*
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** lib_clrbot.c
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**
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** The routine wclrtobot().
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**
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*/
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#include "curses.priv.h"
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int wclrtobot(WINDOW *win)
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{
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chtype *ptr, *end, *maxx = NULL;
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int y, startx, minx;
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T(("wclrtobot(%x) called", win));
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startx = win->_curx;
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T(("clearing from y = %d to y = %d with maxx = %d", win->_cury, win->_maxy, win->_maxx));
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for (y = win->_cury; y <= win->_maxy; y++) {
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minx = _NOCHANGE;
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end = &win->_line[y][win->_maxx];
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for (ptr = &win->_line[y][startx]; ptr <= end; ptr++) {
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chtype blank = _nc_background(win);
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if (*ptr != blank) {
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maxx = ptr;
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if (minx == _NOCHANGE)
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minx = ptr - win->_line[y];
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*ptr = blank;
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}
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}
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if (minx != _NOCHANGE) {
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if (win->_firstchar[y] > minx
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|| win->_firstchar[y] == _NOCHANGE)
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win->_firstchar[y] = minx;
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if (win->_lastchar[y] < maxx - win->_line[y])
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win->_lastchar[y] = maxx - win->_line[y];
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}
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startx = 0;
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}
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return OK;
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}
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