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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcurses/base/lib_overlay.c	Lines:	0	44	0.0 %
Date:	2017-11-07	Branches:	0	54	0.0 %


/* $OpenBSD: lib_overlay.c,v 1.3 2010/01/12 23:22:06 nicm Exp $ */

/****************************************************************************
 * Copyright (c) 1998-2007,2008 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 1.3 2010/01/12 23:22:06 nicm Exp $")

static int
overlap(const WINDOW *const src, WINDOW *const dst, int const flag)
{
    int rc = ERR;
    int sx1, sy1, sx2, sy2;
    int dx1, dy1, dx2, dy2;
    int sminrow, smincol;
    int dminrow, dmincol;
    int dmaxrow, dmaxcol;

    T((T_CALLED("overlap(%p,%p,%d)"), src, dst, flag));

    if (src != 0 && dst != 0) {
	_nc_lock_global(curses);

	T(("src : begy %ld, begx %ld, maxy %ld, maxx %ld",
	   (long) src->_begy,
	   (long) src->_begx,
	   (long) src->_maxy,
	   (long) src->_maxx));
	T(("dst : begy %ld, begx %ld, maxy %ld, maxx %ld",
	   (long) dst->_begy,
	   (long) dst->_begx,
	   (long) dst->_maxy,
	   (long) dst->_maxx));

	sx1 = src->_begx;
	sy1 = src->_begy;
	sx2 = sx1 + src->_maxx;
	sy2 = sy1 + src->_maxy;

	dx1 = dst->_begx;
	dy1 = dst->_begy;
	dx2 = dx1 + dst->_maxx;
	dy2 = dy1 + dst->_maxy;

	if (dx2 >= sx1 && dx1 <= sx2 && dy2 >= sy1 && dy1 <= sy2) {
	    sminrow = max(sy1, dy1) - sy1;
	    smincol = max(sx1, dx1) - sx1;
	    dminrow = max(sy1, dy1) - dy1;
	    dmincol = max(sx1, dx1) - dx1;
	    dmaxrow = min(sy2, dy2) - dy1;
	    dmaxcol = min(sx2, dx2) - dx1;

	    rc = copywin(src, dst,
			 sminrow, smincol,
			 dminrow, dmincol,
			 dmaxrow, dmaxcol,
			 flag);
	}
	_nc_unlock_global(curses);
    }
    returnCode(rc);
}

/*
**
**	overlay(win1, win2)
**
**
**	overlay() writes the overlapping area of win1 behind win2
**	on win2 non-destructively.
**
**/

NCURSES_EXPORT(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.
**
**/

NCURSES_EXPORT(int)
overwrite(const WINDOW *win1, WINDOW *win2)
{
    T((T_CALLED("overwrite(%p,%p)"), win1, win2));
    returnCode(overlap(win1, win2, FALSE));
}

NCURSES_EXPORT(int)
copywin(const WINDOW *src, WINDOW *dst,
	int sminrow, int smincol,
	int dminrow, int dmincol,
	int dmaxrow, int dmaxcol,
	int over)
{
    int rc = ERR;
    int sx, sy, dx, dy;
    bool touched;
    attr_t bk;
    attr_t mask;

    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) {
	_nc_lock_global(curses);

	bk = AttrOf(dst->_nc_bkgd);
	mask = ~(attr_t) ((bk & A_COLOR) ? A_COLOR : 0);

	/* make sure rectangle exists in source */
	if ((sminrow + dmaxrow - dminrow) <= (src->_maxy + 1) &&
	    (smincol + dmaxcol - dmincol) <= (src->_maxx + 1)) {

	    T(("rectangle exists in source"));

	    /* make sure rectangle fits in destination */
	    if (dmaxrow <= dst->_maxy && dmaxcol <= dst->_maxx) {

		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 ((CharOf(src->_line[sy].text[sx]) != L(' ')) &&
				(!CharEq(dst->_line[dy].text[dx],
					 src->_line[sy].text[sx]))) {
				dst->_line[dy].text[dx] =
				    src->_line[sy].text[sx];
				SetAttr(dst->_line[dy].text[dx],
					((AttrOf(src->_line[sy].text[sx]) &
					  mask) | bk));
				touched = TRUE;
			    }
			} else {
			    if (!CharEq(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, dminrow, (dmaxrow - dminrow + 1));
		    }
		}
		T(("finished copywin"));
		rc = OK;
	    }
	}
	_nc_unlock_global(curses);
    }
    returnCode(rc);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: lib_overlay.c,v 1.3 2010/01/12 23:22:06 nicm Exp $ */
2
3			/****************************************************************************
4			* Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. *
5			* *
6			* Permission is hereby granted, free of charge, to any person obtaining a *
7			* copy of this software and associated documentation files (the *
8			* "Software"), to deal in the Software without restriction, including *
9			* without limitation the rights to use, copy, modify, merge, publish, *
10			* distribute, distribute with modifications, sublicense, and/or sell *
11			* copies of the Software, and to permit persons to whom the Software is *
12			* furnished to do so, subject to the following conditions: *
13			* *
14			* The above copyright notice and this permission notice shall be included *
15			* in all copies or substantial portions of the Software. *
16			* *
17			* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
18			* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
19			* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
20			* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
21			* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
22			* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
23			* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24			* *
25			* Except as contained in this notice, the name(s) of the above copyright *
26			* holders shall not be used in advertising or otherwise to promote the *
27			* sale, use or other dealings in this Software without prior written *
28			* authorization. *
29			****************************************************************************/
30
31			/****************************************************************************
32			* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
33			* and: Eric S. Raymond <esr@snark.thyrsus.com> *
34			****************************************************************************/
35
36			/*
37			** lib_overlay.c
38			**
39			** The routines overlay(), copywin(), and overwrite().
40			**
41			*/
42
43			#include <curses.priv.h>
44
45			MODULE_ID("$Id: lib_overlay.c,v 1.3 2010/01/12 23:22:06 nicm Exp $")
46
47			static int
48			overlap(const WINDOW const src, WINDOW const dst, int const flag)
49			{
50			int rc = ERR;
51			int sx1, sy1, sx2, sy2;
52			int dx1, dy1, dx2, dy2;
53			int sminrow, smincol;
54			int dminrow, dmincol;
55			int dmaxrow, dmaxcol;
56
57			T((T_CALLED("overlap(%p,%p,%d)"), src, dst, flag));
58
59			if (src != 0 && dst != 0) {
60			_nc_lock_global(curses);
61
62			T(("src : begy %ld, begx %ld, maxy %ld, maxx %ld",
63			(long) src->_begy,
64			(long) src->_begx,
65			(long) src->_maxy,
66			(long) src->_maxx));
67			T(("dst : begy %ld, begx %ld, maxy %ld, maxx %ld",
68			(long) dst->_begy,
69			(long) dst->_begx,
70			(long) dst->_maxy,
71			(long) dst->_maxx));
72
73			sx1 = src->_begx;
74			sy1 = src->_begy;
75			sx2 = sx1 + src->_maxx;
76			sy2 = sy1 + src->_maxy;
77
78			dx1 = dst->_begx;
79			dy1 = dst->_begy;
80			dx2 = dx1 + dst->_maxx;
81			dy2 = dy1 + dst->_maxy;
82
83			if (dx2 >= sx1 && dx1 <= sx2 && dy2 >= sy1 && dy1 <= sy2) {
84			sminrow = max(sy1, dy1) - sy1;
85			smincol = max(sx1, dx1) - sx1;
86			dminrow = max(sy1, dy1) - dy1;
87			dmincol = max(sx1, dx1) - dx1;
88			dmaxrow = min(sy2, dy2) - dy1;
89			dmaxcol = min(sx2, dx2) - dx1;
90
91			rc = copywin(src, dst,
92			sminrow, smincol,
93			dminrow, dmincol,
94			dmaxrow, dmaxcol,
95			flag);
96			}
97			_nc_unlock_global(curses);
98			}
99			returnCode(rc);
100			}
101
102			/*
103			**
104			** overlay(win1, win2)
105			**
106			**
107			** overlay() writes the overlapping area of win1 behind win2
108			** on win2 non-destructively.
109			**
110			**/
111
112			NCURSES_EXPORT(int)
113			overlay(const WINDOW win1, WINDOW win2)
114			{
115			T((T_CALLED("overlay(%p,%p)"), win1, win2));
116			returnCode(overlap(win1, win2, TRUE));
117			}
118
119			/*
120			**
121			** overwrite(win1, win2)
122			**
123			**
124			** overwrite() writes the overlapping area of win1 behind win2
125			** on win2 destructively.
126			**
127			**/
128
129			NCURSES_EXPORT(int)
130			overwrite(const WINDOW win1, WINDOW win2)
131			{
132			T((T_CALLED("overwrite(%p,%p)"), win1, win2));
133			returnCode(overlap(win1, win2, FALSE));
134			}
135
136			NCURSES_EXPORT(int)
137			copywin(const WINDOW src, WINDOW dst,
138			int sminrow, int smincol,
139			int dminrow, int dmincol,
140			int dmaxrow, int dmaxcol,
141			int over)
142			{
143			int rc = ERR;
144			int sx, sy, dx, dy;
145			bool touched;
146			attr_t bk;
147			attr_t mask;
148
149			T((T_CALLED("copywin(%p, %p, %d, %d, %d, %d, %d, %d, %d)"),
150			src, dst, sminrow, smincol, dminrow, dmincol, dmaxrow, dmaxcol, over));
151
152			if (src && dst) {
153			_nc_lock_global(curses);
154
155			bk = AttrOf(dst->_nc_bkgd);
156			mask = ~(attr_t) ((bk & A_COLOR) ? A_COLOR : 0);
157
158			/* make sure rectangle exists in source */
159			if ((sminrow + dmaxrow - dminrow) <= (src->_maxy + 1) &&
160			(smincol + dmaxcol - dmincol) <= (src->_maxx + 1)) {
161
162			T(("rectangle exists in source"));
163
164			/* make sure rectangle fits in destination */
165			if (dmaxrow <= dst->_maxy && dmaxcol <= dst->_maxx) {
166
167			T(("rectangle fits in destination"));
168
169			for (dy = dminrow, sy = sminrow;
170			dy <= dmaxrow;
171			sy++, dy++) {
172
173			touched = FALSE;
174			for (dx = dmincol, sx = smincol;
175			dx <= dmaxcol;
176			sx++, dx++) {
177			if (over) {
178			if ((CharOf(src->_line[sy].text[sx]) != L(' ')) &&
179			(!CharEq(dst->_line[dy].text[dx],
180			src->_line[sy].text[sx]))) {
181			dst->_line[dy].text[dx] =
182			src->_line[sy].text[sx];
183			SetAttr(dst->_line[dy].text[dx],
184			((AttrOf(src->_line[sy].text[sx]) &
185			mask) \| bk));
186			touched = TRUE;
187			}
188			} else {
189			if (!CharEq(dst->_line[dy].text[dx],
190			src->_line[sy].text[sx])) {
191			dst->_line[dy].text[dx] =
192			src->_line[sy].text[sx];
193			touched = TRUE;
194			}
195			}
196			}
197			if (touched) {
198			touchline(dst, dminrow, (dmaxrow - dminrow + 1));
199			}
200			}
201			T(("finished copywin"));
202			rc = OK;
203			}
204			}
205			_nc_unlock_global(curses);
206			}
207			returnCode(rc);
208			}