Use nullptr in some more places.
[pulseview.git] / pv / binding / device.cpp
1 /*
2  * This file is part of the PulseView project.
3  *
4  * Copyright (C) 2012 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 <stdint.h>
22
23 #include <QDebug>
24
25 #include "device.hpp"
26
27 #include <pv/prop/bool.hpp>
28 #include <pv/prop/double.hpp>
29 #include <pv/prop/enum.hpp>
30 #include <pv/prop/int.hpp>
31
32 #include <libsigrokcxx/libsigrokcxx.hpp>
33
34 using boost::optional;
35 using std::function;
36 using std::make_pair;
37 using std::pair;
38 using std::shared_ptr;
39 using std::string;
40 using std::vector;
41
42 using sigrok::Capability;
43 using sigrok::Configurable;
44 using sigrok::ConfigKey;
45 using sigrok::Error;
46
47 using pv::prop::Bool;
48 using pv::prop::Double;
49 using pv::prop::Enum;
50 using pv::prop::Int;
51 using pv::prop::Property;
52
53 namespace pv {
54 namespace binding {
55
56 Device::Device(shared_ptr<sigrok::Configurable> configurable) :
57         configurable_(configurable)
58 {
59
60         auto keys = configurable->config_keys();
61
62         for (auto key : keys) {
63
64                 auto capabilities = configurable->config_capabilities(key);
65
66                 if (!capabilities.count(Capability::GET) ||
67                         !capabilities.count(Capability::SET))
68                         continue;
69
70                 string name_str;
71                 try {
72                         name_str = key->description();
73                 } catch (Error e) {
74                         name_str = key->name();
75                 }
76
77                 const QString name = QString::fromStdString(name_str);
78
79                 const Property::Getter get = [&, key]() {
80                         return configurable_->config_get(key); };
81                 const Property::Setter set = [&, key](Glib::VariantBase value) {
82                         configurable_->config_set(key, value);
83                         config_changed();
84                 };
85
86                 switch (key->id()) {
87                 case SR_CONF_SAMPLERATE:
88                         // Sample rate values are not bound because they are shown
89                         // in the MainBar
90                         break;
91
92                 case SR_CONF_CAPTURE_RATIO:
93                         bind_int(name, "%", pair<int64_t, int64_t>(0, 100),
94                                 get, set);
95                         break;
96
97                 case SR_CONF_PATTERN_MODE:
98                 case SR_CONF_BUFFERSIZE:
99                 case SR_CONF_TRIGGER_SOURCE:
100                 case SR_CONF_TRIGGER_SLOPE:
101                 case SR_CONF_FILTER:
102                 case SR_CONF_COUPLING:
103                 case SR_CONF_CLOCK_EDGE:
104                         bind_enum(name, key, capabilities, get, set);
105                         break;
106
107                 case SR_CONF_EXTERNAL_CLOCK:
108                 case SR_CONF_RLE:
109                 case SR_CONF_POWER_OFF:
110                         bind_bool(name, get, set);
111                         break;
112
113                 case SR_CONF_TIMEBASE:
114                         bind_enum(name, key, capabilities, get, set, print_timebase);
115                         break;
116
117                 case SR_CONF_VDIV:
118                         bind_enum(name, key, capabilities, get, set, print_vdiv);
119                         break;
120
121                 case SR_CONF_VOLTAGE_THRESHOLD:
122                         bind_enum(name, key, capabilities, get, set, print_voltage_threshold);
123                         break;
124
125                 case SR_CONF_PROBE_FACTOR:
126                         bind_int(name, "", pair<int64_t, int64_t>(1, 500), get, set);
127                         break;
128
129                 default:
130                         break;
131                 }
132         }
133 }
134
135 void Device::bind_bool(const QString &name,
136         Property::Getter getter, Property::Setter setter)
137 {
138         assert(configurable_);
139         properties_.push_back(shared_ptr<Property>(new Bool(
140                 name, getter, setter)));
141 }
142
143 void Device::bind_enum(const QString &name,
144         const ConfigKey *key, std::set<const Capability *> capabilities,
145         Property::Getter getter,
146         Property::Setter setter, function<QString (Glib::VariantBase)> printer)
147 {
148         Glib::VariantBase gvar;
149         vector< pair<Glib::VariantBase, QString> > values;
150
151         assert(configurable_);
152
153         if (!capabilities.count(Capability::LIST))
154                 return;
155
156         Glib::VariantIter iter(configurable_->config_list(key));
157         while ((iter.next_value(gvar)))
158                 values.push_back(make_pair(gvar, printer(gvar)));
159
160         properties_.push_back(shared_ptr<Property>(new Enum(name, values,
161                 getter, setter)));
162 }
163
164 void Device::bind_int(const QString &name, QString suffix,
165         optional< std::pair<int64_t, int64_t> > range,
166         Property::Getter getter, Property::Setter setter)
167 {
168         assert(configurable_);
169
170         properties_.push_back(shared_ptr<Property>(new Int(name, suffix, range,
171                 getter, setter)));
172 }
173
174 QString Device::print_timebase(Glib::VariantBase gvar)
175 {
176         uint64_t p, q;
177         g_variant_get(gvar.gobj(), "(tt)", &p, &q);
178         return QString::fromUtf8(sr_period_string(p * q));
179 }
180
181 QString Device::print_vdiv(Glib::VariantBase gvar)
182 {
183         uint64_t p, q;
184         g_variant_get(gvar.gobj(), "(tt)", &p, &q);
185         return QString::fromUtf8(sr_voltage_string(p, q));
186 }
187
188 QString Device::print_voltage_threshold(Glib::VariantBase gvar)
189 {
190         gdouble lo, hi;
191         g_variant_get(gvar.gobj(), "(dd)", &lo, &hi);
192         return QString("L<%1V H>%2V").arg(lo, 0, 'f', 1).arg(hi, 0, 'f', 1);
193 }
194
195 } // binding
196 } // pv