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1.1 ! root 1: # include "curses.ext" ! 2: /* @(#) erase.c: 1.1 10/15/83 (1.2 4/7/82) */ ! 3: ! 4: /* ! 5: * This routine erases everything on the _window. ! 6: * ! 7: * 1/27/81 (Berkeley) @(#)erase.c 1.2 ! 8: */ ! 9: werase(win) ! 10: reg WINDOW *win; { ! 11: ! 12: reg int y; ! 13: reg chtype *sp, *end, *start, *maxx; ! 14: reg int minx; ! 15: ! 16: # ifdef DEBUG ! 17: if(outf) fprintf(outf, "WERASE(%0.2o), _maxx %d\n", win, win->_maxx); ! 18: # endif ! 19: for (y = 0; y < win->_maxy; y++) { ! 20: minx = _NOCHANGE; ! 21: maxx = NULL; ! 22: start = win->_y[y]; ! 23: end = &start[win->_maxx]; ! 24: for (sp = start; sp < end; sp++) { ! 25: #ifdef DEBUG ! 26: if (y == 23) if(outf) fprintf(outf, ! 27: "sp %x, *sp %c %o\n", sp, *sp, *sp); ! 28: #endif ! 29: if (*sp != ' ') { ! 30: maxx = sp; ! 31: if (minx == _NOCHANGE) ! 32: minx = sp - start; ! 33: *sp = ' '; ! 34: } ! 35: } ! 36: if (minx != _NOCHANGE) { ! 37: if (win->_firstch[y] > minx ! 38: || win->_firstch[y] == _NOCHANGE) ! 39: win->_firstch[y] = minx; ! 40: if (win->_lastch[y] < maxx - win->_y[y]) ! 41: win->_lastch[y] = maxx - win->_y[y]; ! 42: } ! 43: # ifdef DEBUG ! 44: if(outf) fprintf(outf, "WERASE: minx %d maxx %d _firstch[%d] %d, start %x, end %x\n", ! 45: minx, maxx ? maxx-start : NULL, y, win->_firstch[y], start, end); ! 46: # endif ! 47: } ! 48: win->_curx = win->_cury = 0; ! 49: }
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