diff options
Diffstat (limited to 'apps/gui/option_select.c')
-rw-r--r-- | apps/gui/option_select.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/apps/gui/option_select.c b/apps/gui/option_select.c new file mode 100644 index 0000000000..0e169617c4 --- /dev/null +++ b/apps/gui/option_select.c | |||
@@ -0,0 +1,102 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2005 by Kevin Ferrare | ||
11 | * | ||
12 | * All files in this archive are subject to the GNU General Public License. | ||
13 | * See the file COPYING in the source tree root for full license agreement. | ||
14 | * | ||
15 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
16 | * KIND, either express or implied. | ||
17 | * | ||
18 | ****************************************************************************/ | ||
19 | |||
20 | #include "option_select.h" | ||
21 | #include "sprintf.h" | ||
22 | #include "kernel.h" | ||
23 | #include "lang.h" | ||
24 | |||
25 | void option_select_init_numeric(struct option_select * opt, | ||
26 | const char * title, | ||
27 | int init_value, | ||
28 | int min_value, | ||
29 | int max_value, | ||
30 | int step, | ||
31 | const char * unit, | ||
32 | option_formatter *formatter) | ||
33 | { | ||
34 | opt->title=title; | ||
35 | opt->min_value=min_value; | ||
36 | opt->max_value=max_value+1; | ||
37 | opt->option=init_value; | ||
38 | opt->step=step; | ||
39 | opt->extra_string=unit; | ||
40 | opt->formatter=formatter; | ||
41 | opt->items=NULL; | ||
42 | opt->limit_loop=false; | ||
43 | } | ||
44 | |||
45 | void option_select_init_items(struct option_select * opt, | ||
46 | const char * title, | ||
47 | int selected, | ||
48 | const struct opt_items * items, | ||
49 | int nb_items) | ||
50 | { | ||
51 | opt->title=title; | ||
52 | opt->min_value=0; | ||
53 | opt->max_value=nb_items; | ||
54 | opt->option=selected; | ||
55 | opt->step=1; | ||
56 | opt->formatter=NULL; | ||
57 | opt->items=items; | ||
58 | opt->limit_loop=false; | ||
59 | } | ||
60 | |||
61 | void option_select_next(struct option_select * opt) | ||
62 | { | ||
63 | if(opt->option + opt->step >= opt->max_value) | ||
64 | { | ||
65 | if(!opt->limit_loop) | ||
66 | { | ||
67 | if(opt->option==opt->max_value-1) | ||
68 | opt->option=opt->min_value; | ||
69 | else | ||
70 | opt->option=opt->max_value-1; | ||
71 | } | ||
72 | } | ||
73 | else | ||
74 | opt->option+=opt->step; | ||
75 | } | ||
76 | |||
77 | void option_select_prev(struct option_select * opt) | ||
78 | { | ||
79 | if(opt->option - opt->step < opt->min_value) | ||
80 | { | ||
81 | if(!opt->limit_loop) | ||
82 | { | ||
83 | if(opt->option==opt->min_value) | ||
84 | opt->option=opt->max_value-1; | ||
85 | else | ||
86 | opt->option=opt->min_value; | ||
87 | } | ||
88 | } | ||
89 | else | ||
90 | opt->option-=opt->step; | ||
91 | } | ||
92 | |||
93 | const char * option_select_get_text(struct option_select * opt, char * buffer) | ||
94 | { | ||
95 | if(opt->items) | ||
96 | return(P2STR(opt->items[opt->option].string)); | ||
97 | if(!opt->formatter) | ||
98 | snprintf(buffer, sizeof buffer,"%d %s", opt->option, opt->extra_string); | ||
99 | else | ||
100 | opt->formatter(buffer, sizeof buffer, opt->option, opt->extra_string); | ||
101 | return(buffer); | ||
102 | } | ||