1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/****************************************************************************
* Copyright 2020 Thomas E. Dickey *
* Copyright 1998-2010,2012 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: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
/***************************************************************************
* Module m_format *
* Set and get maximum numbers of rows and columns in menus *
***************************************************************************/
#include "menu.priv.h"
MODULE_ID("$Id: m_format.c,v 1.20 2020/05/24 01:40:20 anonymous.maarten Exp $")
#define minimum(a,b) ((a)<(b) ? (a): (b))
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_menu_format(MENU *menu, int rows, int cols)
|
| Description : Sets the maximum number of rows and columns of items
| that may be displayed at one time on a menu. If the
| menu contains more items than can be displayed at
| once, the menu will be scrollable.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid values passed
| E_NOT_CONNECTED - there are no items connected
| E_POSTED - the menu is already posted
+--------------------------------------------------------------------------*/
MENU_EXPORT(int)
set_menu_format(MENU * menu, int rows, int cols)
{
int total_rows, total_cols;
T((T_CALLED("set_menu_format(%p,%d,%d)"), (void *)menu, rows, cols));
if (rows < 0 || cols < 0)
RETURN(E_BAD_ARGUMENT);
if (menu)
{
if (menu->status & _POSTED)
RETURN(E_POSTED);
if (!(menu->items))
RETURN(E_NOT_CONNECTED);
if (rows == 0)
rows = menu->frows;
if (cols == 0)
cols = menu->fcols;
if (menu->pattern)
Reset_Pattern(menu);
menu->frows = (short)rows;
menu->fcols = (short)cols;
assert(rows > 0 && cols > 0);
total_rows = (menu->nitems - 1) / cols + 1;
total_cols = (menu->opt & O_ROWMAJOR) ?
minimum(menu->nitems, cols) :
(menu->nitems - 1) / total_rows + 1;
menu->rows = (short)total_rows;
menu->cols = (short)total_cols;
menu->arows = (short)minimum(total_rows, rows);
menu->toprow = 0;
menu->curitem = *(menu->items);
assert(menu->curitem);
SetStatus(menu, _LINK_NEEDED);
_nc_Calculate_Item_Length_and_Width(menu);
}
else
{
if (rows > 0)
_nc_Default_Menu.frows = (short)rows;
if (cols > 0)
_nc_Default_Menu.fcols = (short)cols;
}
RETURN(E_OK);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : void menu_format(const MENU *menu, int *rows, int *cols)
|
| Description : Returns the maximum number of rows and columns that may
| be displayed at one time on menu.
|
| Return Values : -
+--------------------------------------------------------------------------*/
MENU_EXPORT(void)
menu_format(const MENU * menu, int *rows, int *cols)
{
if (rows)
*rows = Normalize_Menu(menu)->frows;
if (cols)
*cols = Normalize_Menu(menu)->fcols;
}
/* m_format.c ends here */
|
