Session: Use a monotonic clock to measure acquisition time.
[pulseview.git] / prop / binding / decoderoptions.cpp
1 /*
2  * This file is part of the PulseView project.
3  *
4  * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
19  */
20
21 #include <libsigrokdecode/libsigrokdecode.h>
22
23 #include "decoderoptions.h"
24
25 #include <boost/none_t.hpp>
26
27 #include <pv/data/decoderstack.h>
28 #include <pv/data/decode/decoder.h>
29 #include <pv/prop/double.h>
30 #include <pv/prop/enum.h>
31 #include <pv/prop/int.h>
32 #include <pv/prop/string.h>
33
34 using boost::none;
35 using std::make_pair;
36 using std::map;
37 using std::pair;
38 using std::shared_ptr;
39 using std::string;
40 using std::vector;
41
42 namespace pv {
43 namespace prop {
44 namespace binding {
45
46 DecoderOptions::DecoderOptions(
47         shared_ptr<pv::data::DecoderStack> decoder_stack,
48         shared_ptr<data::decode::Decoder> decoder) :
49         _decoder_stack(decoder_stack),
50         _decoder(decoder)
51 {
52         assert(_decoder);
53
54         const srd_decoder *const dec = _decoder->decoder();
55         assert(dec);
56
57         for (GSList *l = dec->options; l; l = l->next)
58         {
59                 const srd_decoder_option *const opt =
60                         (srd_decoder_option*)l->data;
61
62                 const QString name = QString::fromUtf8(opt->desc);
63
64                 const Property::Getter get = [&, opt]() {
65                         return getter(opt->id); };
66                 const Property::Setter set = [&, opt](Glib::VariantBase value) {
67                         setter(opt->id, value); };
68
69                 shared_ptr<Property> prop;
70
71                 if (opt->values)
72                         prop = bind_enum(name, opt, get, set);
73                 else if (g_variant_is_of_type(opt->def, G_VARIANT_TYPE("d")))
74                         prop = shared_ptr<Property>(new Double(name, 2, "",
75                                 none, none, get, set));
76                 else if (g_variant_is_of_type(opt->def, G_VARIANT_TYPE("x")))
77                         prop = shared_ptr<Property>(
78                                 new Int(name, "", none, get, set));
79                 else if (g_variant_is_of_type(opt->def, G_VARIANT_TYPE("s")))
80                         prop = shared_ptr<Property>(
81                                 new String(name, get, set));
82                 else
83                         continue;
84
85                 _properties.push_back(prop);
86         }
87 }
88
89 shared_ptr<Property> DecoderOptions::bind_enum(
90         const QString &name, const srd_decoder_option *option,
91         Property::Getter getter, Property::Setter setter)
92 {
93         vector< pair<Glib::VariantBase, QString> > values;
94         for (GSList *l = option->values; l; l = l->next) {
95                 Glib::VariantBase var = Glib::VariantBase((GVariant*)l->data, true);
96                 values.push_back(make_pair(var, print_gvariant(var)));
97         }
98
99         return shared_ptr<Property>(new Enum(name, values, getter, setter));
100 }
101
102 Glib::VariantBase DecoderOptions::getter(const char *id)
103 {
104         GVariant *val = NULL;
105
106         assert(_decoder);
107
108         // Get the value from the hash table if it is already present
109         const map<string, GVariant*>& options = _decoder->options();
110         const auto iter = options.find(id);
111
112         if (iter != options.end())
113                 val = (*iter).second;
114         else
115         {
116                 assert(_decoder->decoder());
117
118                 // Get the default value if not
119                 for (GSList *l = _decoder->decoder()->options; l; l = l->next)
120                 {
121                         const srd_decoder_option *const opt =
122                                 (srd_decoder_option*)l->data;
123                         if (strcmp(opt->id, id) == 0) {
124                                 val = opt->def;
125                                 break;
126                         }
127                 }
128         }
129
130         if (val)
131                 return Glib::VariantBase(val, true);
132         else
133                 return Glib::VariantBase();
134 }
135
136 void DecoderOptions::setter(const char *id, Glib::VariantBase value)
137 {
138         assert(_decoder);
139         _decoder->set_option(id, value.gobj());
140
141         assert(_decoder_stack);
142         _decoder_stack->begin_decode();
143 }
144
145 } // binding
146 } // prop
147 } // pv