+++ /dev/null
-/****************************************************************************
- * Copyright (c) 1998 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 *
- * "Software"), to deal in the Software without restriction, including *
- * without limitation the rights to use, copy, modify, merge, publish, *
- * distribute, distribute with modifications, sublicense, and/or sell *
- * copies of the Software, and to permit persons to whom the Software is *
- * furnished to do so, subject to the following conditions: *
- * *
- * The above copyright notice and this permission notice shall be included *
- * in all copies or substantial portions of the Software. *
- * *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
- * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
- * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
- * *
- * Except as contained in this notice, the name(s) of the above copyright *
- * holders shall not be used in advertising or otherwise to promote the *
- * sale, use or other dealings in this Software without prior written *
- * authorization. *
- ****************************************************************************/
-
-/****************************************************************************
- * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
- * and: Eric S. Raymond <esr@snark.thyrsus.com> *
- ****************************************************************************/
-
-
-/*
-** lib_overlay.c
-**
-** The routines overlay(), copywin(), and overwrite().
-**
-*/
-
-#include <curses.priv.h>
-
-MODULE_ID("$Id: lib_overlay.c,v 1.12 1998/02/11 12:13:59 tom Exp $")
-
-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));
-}
-
-/*
-**
-** overlay(win1, win2)
-**
-**
-** overlay() writes the overlapping area of win1 behind win2
-** on win2 non-destructively.
-**
-**/
-
-int overlay(const WINDOW *win1, WINDOW *win2)
-{
- T((T_CALLED("overlay(%p,%p)"), win1, win2));
- returnCode(overlap(win1, win2, TRUE));
-}
-
-/*
-**
-** overwrite(win1, win2)
-**
-**
-** overwrite() writes the overlapping area of win1 behind win2
-** on win2 destructively.
-**
-**/
-
-int overwrite(const WINDOW *win1, WINDOW *win2)
-{
- 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)
-{
-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;
- }
- }
- }
- if (touched)
- {
- touchline(dst,0,getmaxy(dst));
- }
- }
- T(("finished copywin"));
- returnCode(OK);
-}
projects / ncurses.git / blobdiff