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Annotation of 42BSD/usr.lib/libcurses/overwrite.c, revision 1.1

1.1     ! root        1: # include      "curses.ext"
        !             2: 
        !             3: # define       min(a,b)        (a < b ? a : b)
        !             4: 
        !             5: /*
        !             6:  *     This routine writes win1 on win2 destructively.
        !             7:  *
        !             8:  * 3/27/83 (Berkeley) @(#)overwrite.c  1.3
        !             9:  */
        !            10: overwrite(win1, win2)
        !            11: reg WINDOW     *win1, *win2; {
        !            12: 
        !            13:        reg int         x, y, minx, miny, startx, starty;
        !            14: 
        !            15: # ifdef DEBUG
        !            16:        fprintf(outf, "OVERWRITE(0%o, 0%o);\n", win1, win2);
        !            17: # endif
        !            18:        miny = min(win1->_maxy, win2->_maxy);
        !            19:        minx = min(win1->_maxx, win2->_maxx);
        !            20: # ifdef DEBUG
        !            21:        fprintf(outf, "OVERWRITE:\tminx = %d,  miny = %d\n", minx, miny);
        !            22: # endif
        !            23:        starty = win1->_begy - win2->_begy;
        !            24:        startx = win1->_begx - win2->_begx;
        !            25:        if (startx < 0)
        !            26:                startx = 0;
        !            27:        for (y = 0; y < miny; y++)
        !            28:                if (wmove(win2, y + starty, startx) != ERR)
        !            29:                        for (x = 0; x < minx; x++)
        !            30:                                waddch(win2, win1->_y[y][x]);
        !            31: }

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