9d39282ae9
Cleanup in curses.h: removed reg definition. All include files reformatted for 4-space indent.
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/*
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* Copyright (c) 1980 Regents of the University of California.
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* All rights reserved. The Berkeley software License Agreement
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* specifies the terms and conditions for redistribution.
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*/
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#include "curses.ext"
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#define min(a,b) (a < b ? a : b)
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#define max(a,b) (a > b ? a : b)
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/*
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* Touch, on win2, the part that overlaps with win1.
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*/
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void
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touchoverlap(win1, win2)
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WINDOW *win1, *win2;
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{
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int y, endy, endx, starty, startx;
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# ifdef DEBUG
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fprintf(outf, "TOUCHOVERLAP(%0.2o, %0.2o);\n", win1, win2);
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# endif
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starty = max(win1->_begy, win2->_begy);
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startx = max(win1->_begx, win2->_begx);
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endy = min(win1->_maxy + win1->_begy, win2->_maxy + win2->_begx);
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endx = min(win1->_maxx + win1->_begx, win2->_maxx + win2->_begx);
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# ifdef DEBUG
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fprintf(outf, "TOUCHOVERLAP:from (%d,%d) to (%d,%d)\n", starty, startx, endy, endx);
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fprintf(outf, "TOUCHOVERLAP:win1 (%d,%d) to (%d,%d)\n", win1->_begy, win1->_begx, win1->_begy + win1->_maxy, win1->_begx + win1->_maxx);
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fprintf(outf, "TOUCHOVERLAP:win2 (%d,%d) to (%d,%d)\n", win2->_begy, win2->_begx, win2->_begy + win2->_maxy, win2->_begx + win2->_maxx);
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# endif
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if (starty >= endy || startx >= endx)
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return;
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starty -= win2->_begy;
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startx -= win2->_begx;
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endy -= win2->_begy;
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endx -= win2->_begx;
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endx--;
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for (y = starty; y < endy; y++)
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touchline(win2, y, startx, endx);
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}
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