GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcurses/base/lib_window.c Lines: 0 88 0.0 %
Date: 2017-11-07 Branches: 0 84 0.0 %

Line Branch Exec Source
1
/* $OpenBSD: lib_window.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_window.c
38
**
39
**
40
*/
41
42
#include <curses.priv.h>
43
44
MODULE_ID("$Id: lib_window.c,v 1.3 2010/01/12 23:22:06 nicm Exp $")
45
46
NCURSES_EXPORT(void)
47
_nc_synchook(WINDOW *win)
48
/* hook to be called after each window change */
49
{
50
    if (win->_immed)
51
	wrefresh(win);
52
    if (win->_sync)
53
	wsyncup(win);
54
}
55
56
NCURSES_EXPORT(int)
57
mvderwin(WINDOW *win, int y, int x)
58
/* move a derived window */
59
{
60
    WINDOW *orig;
61
    int i;
62
63
    T((T_CALLED("mvderwin(%p,%d,%d)"), win, y, x));
64
65
    if (win && (orig = win->_parent)) {
66
	if (win->_parx == x && win->_pary == y)
67
	    returnCode(OK);
68
	if (x < 0 || y < 0)
69
	    returnCode(ERR);
70
	if ((x + getmaxx(win) > getmaxx(orig)) ||
71
	    (y + getmaxy(win) > getmaxy(orig)))
72
	    returnCode(ERR);
73
    } else
74
	returnCode(ERR);
75
    wsyncup(win);
76
    win->_parx = x;
77
    win->_pary = y;
78
    for (i = 0; i < getmaxy(win); i++)
79
	win->_line[i].text = &(orig->_line[y++].text[x]);
80
    returnCode(OK);
81
}
82
83
NCURSES_EXPORT(int)
84
syncok(WINDOW *win, bool bf)
85
/* enable/disable automatic wsyncup() on each change to window */
86
{
87
    T((T_CALLED("syncok(%p,%d)"), win, bf));
88
89
    if (win) {
90
	win->_sync = bf;
91
	returnCode(OK);
92
    } else
93
	returnCode(ERR);
94
}
95
96
NCURSES_EXPORT(void)
97
wsyncup(WINDOW *win)
98
/* mark changed every cell in win's ancestors that is changed in win */
99
/* Rewritten by J. Pfeifer, 1-Apr-96 (don't even think that...)      */
100
{
101
    WINDOW *wp;
102
103
    T((T_CALLED("wsyncup(%p)"), win));
104
    if (win && win->_parent) {
105
	for (wp = win; wp->_parent; wp = wp->_parent) {
106
	    int y;
107
	    WINDOW *pp = wp->_parent;
108
109
	    assert((wp->_pary <= pp->_maxy) &&
110
		   ((wp->_pary + wp->_maxy) <= pp->_maxy));
111
112
	    for (y = 0; y <= wp->_maxy; y++) {
113
		int left = wp->_line[y].firstchar;
114
		if (left >= 0) {	/* line is touched */
115
		    struct ldat *line = &(pp->_line[wp->_pary + y]);
116
		    /* left & right character in parent window coordinates */
117
		    int right = wp->_line[y].lastchar + wp->_parx;
118
		    left += wp->_parx;
119
120
		    CHANGED_RANGE(line, left, right);
121
		}
122
	    }
123
	}
124
    }
125
    returnVoid;
126
}
127
128
NCURSES_EXPORT(void)
129
wsyncdown(WINDOW *win)
130
/* mark changed every cell in win that is changed in any of its ancestors */
131
/* Rewritten by J. Pfeifer, 1-Apr-96 (don't even think that...)           */
132
{
133
    T((T_CALLED("wsyncdown(%p)"), win));
134
135
    if (win && win->_parent) {
136
	WINDOW *pp = win->_parent;
137
	int y;
138
139
	/* This recursion guarantees, that the changes are propagated down-
140
	   wards from the root to our direct parent. */
141
	wsyncdown(pp);
142
143
	/* and now we only have to propagate the changes from our direct
144
	   parent, if there are any. */
145
	assert((win->_pary <= pp->_maxy) &&
146
	       ((win->_pary + win->_maxy) <= pp->_maxy));
147
148
	for (y = 0; y <= win->_maxy; y++) {
149
	    if (pp->_line[win->_pary + y].firstchar >= 0) {	/* parent changed */
150
		struct ldat *line = &(win->_line[y]);
151
		/* left and right character in child coordinates */
152
		int left = pp->_line[win->_pary + y].firstchar - win->_parx;
153
		int right = pp->_line[win->_pary + y].lastchar - win->_parx;
154
		/* The change may be outside the child's range */
155
		if (left < 0)
156
		    left = 0;
157
		if (right > win->_maxx)
158
		    right = win->_maxx;
159
		CHANGED_RANGE(line, left, right);
160
	    }
161
	}
162
    }
163
    returnVoid;
164
}
165
166
NCURSES_EXPORT(void)
167
wcursyncup(WINDOW *win)
168
/* sync the cursor in all derived windows to its value in the base window */
169
{
170
    WINDOW *wp;
171
172
    T((T_CALLED("wcursyncup(%p)"), win));
173
    for (wp = win; wp && wp->_parent; wp = wp->_parent) {
174
	wmove(wp->_parent, wp->_pary + wp->_cury, wp->_parx + wp->_curx);
175
    }
176
    returnVoid;
177
}
178
179
NCURSES_EXPORT(WINDOW *)
180
dupwin(WINDOW *win)
181
/* make an exact duplicate of the given window */
182
{
183
    WINDOW *nwin = 0;
184
    size_t linesize;
185
    int i;
186
187
    T((T_CALLED("dupwin(%p)"), win));
188
189
    if (win != 0) {
190
191
	_nc_lock_global(curses);
192
	if (win->_flags & _ISPAD) {
193
	    nwin = newpad(win->_maxy + 1,
194
			  win->_maxx + 1);
195
	} else {
196
	    nwin = newwin(win->_maxy + 1,
197
			  win->_maxx + 1,
198
			  win->_begy,
199
			  win->_begx);
200
	}
201
202
	if (nwin != 0) {
203
204
	    nwin->_curx = win->_curx;
205
	    nwin->_cury = win->_cury;
206
	    nwin->_maxy = win->_maxy;
207
	    nwin->_maxx = win->_maxx;
208
	    nwin->_begy = win->_begy;
209
	    nwin->_begx = win->_begx;
210
	    nwin->_yoffset = win->_yoffset;
211
212
	    nwin->_flags = win->_flags & ~_SUBWIN;
213
	    /* Due to the use of newwin(), the clone is not a subwindow.
214
	     * The text is really copied into the clone.
215
	     */
216
217
	    WINDOW_ATTRS(nwin) = WINDOW_ATTRS(win);
218
	    nwin->_nc_bkgd = win->_nc_bkgd;
219
220
	    nwin->_notimeout = win->_notimeout;
221
	    nwin->_clear = win->_clear;
222
	    nwin->_leaveok = win->_leaveok;
223
	    nwin->_scroll = win->_scroll;
224
	    nwin->_idlok = win->_idlok;
225
	    nwin->_idcok = win->_idcok;
226
	    nwin->_immed = win->_immed;
227
	    nwin->_sync = win->_sync;
228
	    nwin->_use_keypad = win->_use_keypad;
229
	    nwin->_delay = win->_delay;
230
231
	    nwin->_parx = 0;
232
	    nwin->_pary = 0;
233
	    nwin->_parent = (WINDOW *) 0;
234
	    /* See above: the clone isn't a subwindow! */
235
236
	    nwin->_regtop = win->_regtop;
237
	    nwin->_regbottom = win->_regbottom;
238
239
	    if (win->_flags & _ISPAD)
240
		nwin->_pad = win->_pad;
241
242
	    linesize = (win->_maxx + 1) * sizeof(NCURSES_CH_T);
243
	    for (i = 0; i <= nwin->_maxy; i++) {
244
		memcpy(nwin->_line[i].text, win->_line[i].text, linesize);
245
		nwin->_line[i].firstchar = win->_line[i].firstchar;
246
		nwin->_line[i].lastchar = win->_line[i].lastchar;
247
	    }
248
	}
249
	_nc_unlock_global(curses);
250
    }
251
    returnWin(nwin);
252
}