1 |
|
|
/* $OpenBSD: m_format.c,v 1.7 2010/01/12 23:22:07 nicm Exp $ */ |
2 |
|
|
|
3 |
|
|
/**************************************************************************** |
4 |
|
|
* Copyright (c) 1998-2003,2004 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: Juergen Pfeifer, 1995,1997 * |
33 |
|
|
****************************************************************************/ |
34 |
|
|
|
35 |
|
|
/*************************************************************************** |
36 |
|
|
* Module m_format * |
37 |
|
|
* Set and get maximum numbers of rows and columns in menus * |
38 |
|
|
***************************************************************************/ |
39 |
|
|
|
40 |
|
|
#include "menu.priv.h" |
41 |
|
|
|
42 |
|
|
MODULE_ID("$Id: m_format.c,v 1.7 2010/01/12 23:22:07 nicm Exp $") |
43 |
|
|
|
44 |
|
|
#define minimum(a,b) ((a)<(b) ? (a): (b)) |
45 |
|
|
|
46 |
|
|
/*--------------------------------------------------------------------------- |
47 |
|
|
| Facility : libnmenu |
48 |
|
|
| Function : int set_menu_format(MENU *menu, int rows, int cols) |
49 |
|
|
| |
50 |
|
|
| Description : Sets the maximum number of rows and columns of items |
51 |
|
|
| that may be displayed at one time on a menu. If the |
52 |
|
|
| menu contains more items than can be displayed at |
53 |
|
|
| once, the menu will be scrollable. |
54 |
|
|
| |
55 |
|
|
| Return Values : E_OK - success |
56 |
|
|
| E_BAD_ARGUMENT - invalid values passed |
57 |
|
|
| E_NOT_CONNECTED - there are no items connected |
58 |
|
|
| E_POSTED - the menu is already posted |
59 |
|
|
+--------------------------------------------------------------------------*/ |
60 |
|
|
NCURSES_EXPORT(int) |
61 |
|
|
set_menu_format(MENU * menu, int rows, int cols) |
62 |
|
|
{ |
63 |
|
|
int total_rows, total_cols; |
64 |
|
|
|
65 |
|
|
T((T_CALLED("set_menu_format(%p,%d,%d)"), menu, rows, cols)); |
66 |
|
|
|
67 |
|
|
if (rows < 0 || cols < 0) |
68 |
|
|
RETURN(E_BAD_ARGUMENT); |
69 |
|
|
|
70 |
|
|
if (menu) |
71 |
|
|
{ |
72 |
|
|
if (menu->status & _POSTED) |
73 |
|
|
RETURN(E_POSTED); |
74 |
|
|
|
75 |
|
|
if (!(menu->items)) |
76 |
|
|
RETURN(E_NOT_CONNECTED); |
77 |
|
|
|
78 |
|
|
if (rows == 0) |
79 |
|
|
rows = menu->frows; |
80 |
|
|
if (cols == 0) |
81 |
|
|
cols = menu->fcols; |
82 |
|
|
|
83 |
|
|
if (menu->pattern) |
84 |
|
|
Reset_Pattern(menu); |
85 |
|
|
|
86 |
|
|
menu->frows = rows; |
87 |
|
|
menu->fcols = cols; |
88 |
|
|
|
89 |
|
|
assert(rows > 0 && cols > 0); |
90 |
|
|
total_rows = (menu->nitems - 1) / cols + 1; |
91 |
|
|
total_cols = (menu->opt & O_ROWMAJOR) ? |
92 |
|
|
minimum(menu->nitems, cols) : |
93 |
|
|
(menu->nitems - 1) / total_rows + 1; |
94 |
|
|
|
95 |
|
|
menu->rows = total_rows; |
96 |
|
|
menu->cols = total_cols; |
97 |
|
|
menu->arows = minimum(total_rows, rows); |
98 |
|
|
menu->toprow = 0; |
99 |
|
|
menu->curitem = *(menu->items); |
100 |
|
|
assert(menu->curitem); |
101 |
|
|
menu->status |= _LINK_NEEDED; |
102 |
|
|
_nc_Calculate_Item_Length_and_Width(menu); |
103 |
|
|
} |
104 |
|
|
else |
105 |
|
|
{ |
106 |
|
|
if (rows > 0) |
107 |
|
|
_nc_Default_Menu.frows = rows; |
108 |
|
|
if (cols > 0) |
109 |
|
|
_nc_Default_Menu.fcols = cols; |
110 |
|
|
} |
111 |
|
|
|
112 |
|
|
RETURN(E_OK); |
113 |
|
|
} |
114 |
|
|
|
115 |
|
|
/*--------------------------------------------------------------------------- |
116 |
|
|
| Facility : libnmenu |
117 |
|
|
| Function : void menu_format(const MENU *menu, int *rows, int *cols) |
118 |
|
|
| |
119 |
|
|
| Description : Returns the maximum number of rows and columns that may |
120 |
|
|
| be displayed at one time on menu. |
121 |
|
|
| |
122 |
|
|
| Return Values : - |
123 |
|
|
+--------------------------------------------------------------------------*/ |
124 |
|
|
NCURSES_EXPORT(void) |
125 |
|
|
menu_format(const MENU * menu, int *rows, int *cols) |
126 |
|
|
{ |
127 |
|
|
if (rows) |
128 |
|
|
*rows = Normalize_Menu(menu)->frows; |
129 |
|
|
if (cols) |
130 |
|
|
*cols = Normalize_Menu(menu)->fcols; |
131 |
|
|
} |
132 |
|
|
|
133 |
|
|
/* m_format.c ends here */ |