diff options
Diffstat (limited to 'contrib/ncurses/ncurses/base/lib_overlay.c')
-rw-r--r-- | contrib/ncurses/ncurses/base/lib_overlay.c | 170 |
1 files changed, 84 insertions, 86 deletions
diff --git a/contrib/ncurses/ncurses/base/lib_overlay.c b/contrib/ncurses/ncurses/base/lib_overlay.c index db2dce1..592e7ad 100644 --- a/contrib/ncurses/ncurses/base/lib_overlay.c +++ b/contrib/ncurses/ncurses/base/lib_overlay.c @@ -1,5 +1,5 @@ /**************************************************************************** - * Copyright (c) 1998 Free Software Foundation, Inc. * + * Copyright (c) 1998,2000 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * @@ -31,7 +31,6 @@ * and: Eric S. Raymond <esr@snark.thyrsus.com> * ****************************************************************************/ - /* ** lib_overlay.c ** @@ -41,29 +40,30 @@ #include <curses.priv.h> -MODULE_ID("$Id: lib_overlay.c,v 1.12 1998/02/11 12:13:59 tom Exp $") +MODULE_ID("$Id: lib_overlay.c,v 1.14 2000/12/10 02:43:27 tom Exp $") -static int overlap(const WINDOW *const s, WINDOW *const d, int const flag) +static int +overlap(const WINDOW *const s, WINDOW *const d, int const flag) { -int sminrow, smincol, dminrow, dmincol, dmaxrow, dmaxcol; - - T(("overlap : sby %d, sbx %d, smy %d, smx %d, dby %d, dbx %d, dmy %d, dmx %d", - s->_begy, s->_begx, s->_maxy, s->_maxx, - d->_begy, d->_begx, d->_maxy, d->_maxx)); - - if (!s || !d) - returnCode(ERR); - - sminrow = max(s->_begy, d->_begy) - s->_begy; - smincol = max(s->_begx, d->_begx) - s->_begx; - dminrow = max(s->_begy, d->_begy) - d->_begy; - dmincol = max(s->_begx, d->_begx) - d->_begx; - dmaxrow = min(s->_maxy+s->_begy, d->_maxy+d->_begy) - d->_begy; - dmaxcol = min(s->_maxx+s->_begx, d->_maxx+d->_begx) - d->_begx; - - return(copywin(s, d, - sminrow, smincol, dminrow, dmincol, dmaxrow, dmaxcol, - flag)); + int sminrow, smincol, dminrow, dmincol, dmaxrow, dmaxcol; + + T(("overlap : sby %d, sbx %d, smy %d, smx %d, dby %d, dbx %d, dmy %d, dmx %d", + s->_begy, s->_begx, s->_maxy, s->_maxx, + d->_begy, d->_begx, d->_maxy, d->_maxx)); + + if (!s || !d) + returnCode(ERR); + + sminrow = max(s->_begy, d->_begy) - s->_begy; + smincol = max(s->_begx, d->_begx) - s->_begx; + dminrow = max(s->_begy, d->_begy) - d->_begy; + dmincol = max(s->_begx, d->_begx) - d->_begx; + dmaxrow = min(s->_maxy + s->_begy, d->_maxy + d->_begy) - d->_begy; + dmaxcol = min(s->_maxx + s->_begx, d->_maxx + d->_begx) - d->_begx; + + return (copywin(s, d, + sminrow, smincol, dminrow, dmincol, dmaxrow, dmaxcol, + flag)); } /* @@ -76,10 +76,11 @@ int sminrow, smincol, dminrow, dmincol, dmaxrow, dmaxcol; ** **/ -int overlay(const WINDOW *win1, WINDOW *win2) +NCURSES_EXPORT(int) +overlay(const WINDOW *win1, WINDOW *win2) { - T((T_CALLED("overlay(%p,%p)"), win1, win2)); - returnCode(overlap(win1, win2, TRUE)); + T((T_CALLED("overlay(%p,%p)"), win1, win2)); + returnCode(overlap(win1, win2, TRUE)); } /* @@ -92,70 +93,67 @@ int overlay(const WINDOW *win1, WINDOW *win2) ** **/ -int overwrite(const WINDOW *win1, WINDOW *win2) +NCURSES_EXPORT(int) +overwrite(const WINDOW *win1, WINDOW *win2) { - T((T_CALLED("overwrite(%p,%p)"), win1, win2)); - returnCode(overlap(win1, win2, FALSE)); + T((T_CALLED("overwrite(%p,%p)"), win1, win2)); + returnCode(overlap(win1, win2, FALSE)); } -int copywin(const WINDOW *src, WINDOW *dst, - int sminrow, int smincol, - int dminrow, int dmincol, int dmaxrow, int dmaxcol, - int over) +NCURSES_EXPORT(int) +copywin +(const WINDOW *src, WINDOW *dst, + int sminrow, int smincol, + int dminrow, int dmincol, int dmaxrow, int dmaxcol, + int over) { -int sx, sy, dx, dy; -bool touched; -chtype bk = AttrOf(dst->_bkgd); -chtype mask = ~(chtype)((bk&A_COLOR) ? A_COLOR : 0); - - T((T_CALLED("copywin(%p, %p, %d, %d, %d, %d, %d, %d, %d)"), - src, dst, sminrow, smincol, dminrow, dmincol, dmaxrow, dmaxcol, over)); - - if (!src || !dst) - returnCode(ERR); - - /* make sure rectangle exists in source */ - if ((sminrow + dmaxrow - dminrow) > (src->_maxy + 1) || - (smincol + dmaxcol - dmincol) > (src->_maxx + 1)) { - returnCode(ERR); - } - - T(("rectangle exists in source")); - - /* make sure rectangle fits in destination */ - if (dmaxrow > dst->_maxy || dmaxcol > dst->_maxx) { - returnCode(ERR); + int sx, sy, dx, dy; + bool touched; + chtype bk = AttrOf(dst->_bkgd); + chtype mask = ~(chtype) ((bk & A_COLOR) ? A_COLOR : 0); + + T((T_CALLED("copywin(%p, %p, %d, %d, %d, %d, %d, %d, %d)"), + src, dst, sminrow, smincol, dminrow, dmincol, dmaxrow, dmaxcol, over)); + + if (!src || !dst) + returnCode(ERR); + + /* make sure rectangle exists in source */ + if ((sminrow + dmaxrow - dminrow) > (src->_maxy + 1) || + (smincol + dmaxcol - dmincol) > (src->_maxx + 1)) { + returnCode(ERR); + } + + T(("rectangle exists in source")); + + /* make sure rectangle fits in destination */ + if (dmaxrow > dst->_maxy || dmaxcol > dst->_maxx) { + returnCode(ERR); + } + + T(("rectangle fits in destination")); + + for (dy = dminrow, sy = sminrow; dy <= dmaxrow; sy++, dy++) { + touched = FALSE; + for (dx = dmincol, sx = smincol; dx <= dmaxcol; sx++, dx++) { + if (over) { + if ((TextOf(src->_line[sy].text[sx]) != ' ') && + (dst->_line[dy].text[dx] != src->_line[sy].text[sx])) { + dst->_line[dy].text[dx] = + (src->_line[sy].text[sx] & mask) | bk; + touched = TRUE; + } + } else { + if (dst->_line[dy].text[dx] != src->_line[sy].text[sx]) { + dst->_line[dy].text[dx] = src->_line[sy].text[sx]; + touched = TRUE; + } + } } - - T(("rectangle fits in destination")); - - for (dy = dminrow, sy = sminrow; dy <= dmaxrow; sy++, dy++) { - touched = FALSE; - for(dx=dmincol, sx=smincol; dx <= dmaxcol; sx++, dx++) - { - if (over) - { - if ((TextOf(src->_line[sy].text[sx]) != ' ') && - (dst->_line[dy].text[dx]!=src->_line[sy].text[sx])) - { - dst->_line[dy].text[dx] = - (src->_line[sy].text[sx] & mask) | bk; - touched = TRUE; - } - } - else { - if (dst->_line[dy].text[dx] != src->_line[sy].text[sx]) - { - dst->_line[dy].text[dx] = src->_line[sy].text[sx]; - touched = TRUE; - } - } - } - if (touched) - { - touchline(dst,0,getmaxy(dst)); - } + if (touched) { + touchline(dst, 0, getmaxy(dst)); } - T(("finished copywin")); - returnCode(OK); + } + T(("finished copywin")); + returnCode(OK); } |