75 lines
1.6 KiB
C
75 lines
1.6 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_refresh.c
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*
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* The routines wredrawln(), wrefresh() and wnoutrefresh().
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*
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*/
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#include "curses.priv.h"
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int wredrawln(WINDOW *win, int beg, int num)
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{
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T(("wredrawln(%x,%d,%d) called", win, beg, num));
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touchline(win, beg, num);
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wrefresh(win);
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return OK;
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}
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int wrefresh(WINDOW *win)
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{
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T(("wrefresh(%x) called", win));
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if (win == curscr)
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curscr->_clear = TRUE;
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else
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wnoutrefresh(win);
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return(doupdate());
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}
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int wnoutrefresh(WINDOW *win)
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{
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int i, j;
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int begx = win->_begx;
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int begy = win->_begy;
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int m, n;
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T(("wnoutrefresh(%x) called", win));
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win->_flags &= ~_HASMOVED;
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for (i = 0, m = begy; i <= win->_maxy; i++, m++) {
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if (win->_firstchar[i] != _NOCHANGE) {
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j = win->_firstchar[i];
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n = j + begx;
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for (; j <= win->_lastchar[i]; j++, n++) {
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if (win->_line[i][j] != newscr->_line[m][n]) {
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newscr->_line[m][n] = win->_line[i][j];
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if (newscr->_firstchar[m] == _NOCHANGE)
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newscr->_firstchar[m] = newscr->_lastchar[m] = n;
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else if (n < newscr->_firstchar[m])
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newscr->_firstchar[m] = n;
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else if (n > newscr->_lastchar[m])
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newscr->_lastchar[m] = n;
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}
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}
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}
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win->_firstchar[i] = win->_lastchar[i] = _NOCHANGE;
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}
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if (win->_clear) {
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win->_clear = FALSE;
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newscr->_clear = TRUE;
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}
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if (! win->_leave) {
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newscr->_cury = win->_cury + win->_begy;
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newscr->_curx = win->_curx + win->_begx;
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}
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return(OK);
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}
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