prop/binding/deviceoptions.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 "deviceoptions.h"
  26
  27 #include <pv/prop/bool.h>
  28 #include <pv/prop/double.h>
  29 #include <pv/prop/enum.h>
  30 #include <pv/prop/int.h>
  31
  32 #include <libsigrok/libsigrok.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 namespace pv {
  48 namespace prop {
  49 namespace binding {
  50
  51 DeviceOptions::DeviceOptions(shared_ptr<sigrok::Configurable> configurable) :
  52         _configurable(configurable)
  53 {
  54         assert(configurable);
  55
  56         for (auto entry : configurable->config_keys(ConfigKey::DEVICE_OPTIONS)) {
  57                 auto key = entry.first;
  58                 auto capabilities = entry.second;
  59
  60                 Glib::VariantContainerBase gvar_list;
  61
  62                 if (!capabilities.count(Capability::GET) ||
  63                         !capabilities.count(Capability::SET))
  64                         continue;
  65
  66                 if (capabilities.count(Capability::LIST))
  67                         gvar_list = configurable->config_list(key);
  68
  69                 string name_str;
  70                 try {
  71                         name_str = key->description();
  72                 } catch (Error e) {
  73                         name_str = key->name();
  74                 }
  75
  76                 const QString name = QString::fromStdString(name_str);
  77
  78                 const Property::Getter get = [&, key]() {
  79                         return _configurable->config_get(key); };
  80                 const Property::Setter set = [&, key](Glib::VariantBase value) {
  81                         _configurable->config_set(key, value);
  82                         config_changed();
  83                 };
  84
  85                 switch (key->id())
  86                 {
  87                 case SR_CONF_SAMPLERATE:
  88                         // Sample rate values are not bound because they are shown
  89                         // in the SamplingBar
  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, gvar_list, get, set);
 105                         break;
 106
 107                 case SR_CONF_EXTERNAL_CLOCK:
 108                 case SR_CONF_RLE:
 109                         bind_bool(name, get, set);
 110                         break;
 111
 112                 case SR_CONF_TIMEBASE:
 113                         bind_enum(name, gvar_list, get, set, print_timebase);
 114                         break;
 115
 116                 case SR_CONF_VDIV:
 117                         bind_enum(name, gvar_list, get, set, print_vdiv);
 118                         break;
 119
 120                 case SR_CONF_VOLTAGE_THRESHOLD:
 121                         bind_enum(name, gvar_list, get, set, print_voltage_threshold);
 122                         break;
 123
 124                 default:
 125                         break;
 126                 }
 127         }
 128 }
 129
 130 void DeviceOptions::bind_bool(const QString &name,
 131         Property::Getter getter, Property::Setter setter)
 132 {
 133         assert(_configurable);
 134         _properties.push_back(shared_ptr<Property>(new Bool(
 135                 name, getter, setter)));
 136 }
 137
 138 void DeviceOptions::bind_enum(const QString &name,
 139         Glib::VariantContainerBase gvar_list, Property::Getter getter,
 140         Property::Setter setter, function<QString (Glib::VariantBase)> printer)
 141 {
 142         Glib::VariantBase gvar;
 143         vector< pair<Glib::VariantBase, QString> > values;
 144
 145         assert(_configurable);
 146
 147         Glib::VariantIter iter(gvar_list);
 148         while ((iter.next_value(gvar)))
 149                 values.push_back(make_pair(gvar, printer(gvar)));
 150
 151         _properties.push_back(shared_ptr<Property>(new Enum(name, values,
 152                 getter, setter)));
 153 }
 154
 155 void DeviceOptions::bind_int(const QString &name, QString suffix,
 156         optional< std::pair<int64_t, int64_t> > range,
 157         Property::Getter getter, Property::Setter setter)
 158 {
 159         assert(_configurable);
 160
 161         _properties.push_back(shared_ptr<Property>(new Int(name, suffix, range,
 162                 getter, setter)));
 163 }
 164
 165 QString DeviceOptions::print_timebase(Glib::VariantBase gvar)
 166 {
 167         uint64_t p, q;
 168         g_variant_get(gvar.gobj(), "(tt)", &p, &q);
 169         return QString::fromUtf8(sr_period_string(p * q));
 170 }
 171
 172 QString DeviceOptions::print_vdiv(Glib::VariantBase gvar)
 173 {
 174         uint64_t p, q;
 175         g_variant_get(gvar.gobj(), "(tt)", &p, &q);
 176         return QString::fromUtf8(sr_voltage_string(p, q));
 177 }
 178
 179 QString DeviceOptions::print_voltage_threshold(Glib::VariantBase gvar)
 180 {
 181         gdouble lo, hi;
 182         g_variant_get(gvar.gobj(), "(dd)", &lo, &hi);
 183         return QString("L<%1V H>%2V").arg(lo, 0, 'f', 1).arg(hi, 0, 'f', 1);
 184 }
 185
 186 } // binding
 187 } // prop
 188 } // pv
 189