pv/dialogs/connect.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2012-2013 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 <cassert>
  22
  23 #include <libsigrok/libsigrok.hpp>
  24
  25 #include "connect.hpp"
  26
  27 #include "pv/devicemanager.hpp"
  28
  29 using std::list;
  30 using std::map;
  31 using std::shared_ptr;
  32 using std::string;
  33
  34 using Glib::ustring;
  35 using Glib::Variant;
  36 using Glib::VariantBase;
  37
  38 using sigrok::ConfigKey;
  39 using sigrok::Driver;
  40 using sigrok::Error;
  41 using sigrok::HardwareDevice;
  42
  43 namespace pv {
  44 namespace dialogs {
  45
  46 Connect::Connect(QWidget *parent, pv::DeviceManager &device_manager) :
  47         QDialog(parent),
  48         device_manager_(device_manager),
  49         layout_(this),
  50         form_(this),
  51         form_layout_(&form_),
  52         drivers_(&form_),
  53         serial_devices_(&form_),
  54         scan_button_(tr("&Scan for Devices"), this),
  55         device_list_(this),
  56         button_box_(QDialogButtonBox::Ok | QDialogButtonBox::Cancel,
  57                 Qt::Horizontal, this)
  58 {
  59         setWindowTitle(tr("Connect to Device"));
  60
  61         connect(&button_box_, SIGNAL(accepted()), this, SLOT(accept()));
  62         connect(&button_box_, SIGNAL(rejected()), this, SLOT(reject()));
  63
  64         populate_drivers();
  65         connect(&drivers_, SIGNAL(activated(int)),
  66                 this, SLOT(device_selected(int)));
  67
  68         form_.setLayout(&form_layout_);
  69         form_layout_.addRow(tr("&Driver"), &drivers_);
  70
  71         form_layout_.addRow(tr("Serial &Port"), &serial_devices_);
  72         serial_devices_.setEditable(true);
  73
  74         unset_connection();
  75
  76         connect(&scan_button_, SIGNAL(pressed()),
  77                 this, SLOT(scan_pressed()));
  78
  79         setLayout(&layout_);
  80         layout_.addWidget(&form_);
  81         layout_.addWidget(&scan_button_);
  82         layout_.addWidget(&device_list_);
  83         layout_.addWidget(&button_box_);
  84 }
  85
  86 shared_ptr<HardwareDevice> Connect::get_selected_device() const
  87 {
  88         const QListWidgetItem *const item = device_list_.currentItem();
  89         if (!item)
  90                 return shared_ptr<HardwareDevice>();
  91
  92         return item->data(Qt::UserRole).value<shared_ptr<HardwareDevice>>();
  93 }
  94
  95 void Connect::populate_drivers()
  96 {
  97         for (auto entry : device_manager_.context()->drivers()) {
  98                 auto name = entry.first;
  99                 auto driver = entry.second;
 100                 /**
 101                  * We currently only support devices that can deliver
 102                  * samples at a fixed samplerate i.e. oscilloscopes and
 103                  * logic analysers.
 104                  * @todo Add support for non-monotonic devices i.e. DMMs
 105                  * and sensors.
 106                  */
 107                 bool supported_device = driver->config_check(
 108                         ConfigKey::LOGIC_ANALYZER, ConfigKey::DEVICE_OPTIONS) |
 109                                         driver->config_check(
 110                         ConfigKey::OSCILLOSCOPE, ConfigKey::DEVICE_OPTIONS);
 111
 112                 if (supported_device)
 113                         drivers_.addItem(QString("%1 (%2)").arg(
 114                                 driver->long_name().c_str()).arg(name.c_str()),
 115                                 qVariantFromValue(driver));
 116         }
 117 }
 118
 119 void Connect::populate_serials(shared_ptr<Driver> driver)
 120 {
 121         serial_devices_.clear();
 122         for (auto serial : device_manager_.context()->serials(driver))
 123                 serial_devices_.addItem(QString("%1 (%2)").arg(
 124                         serial.first.c_str()).arg(serial.second.c_str()),
 125                         QString::fromStdString(serial.first));
 126 }
 127
 128 void Connect::unset_connection()
 129 {
 130         device_list_.clear();
 131         serial_devices_.hide();
 132         form_layout_.labelForField(&serial_devices_)->hide();
 133         button_box_.button(QDialogButtonBox::Ok)->setDisabled(true);
 134 }
 135
 136 void Connect::set_serial_connection(shared_ptr<Driver> driver)
 137 {
 138         populate_serials(driver);
 139         serial_devices_.show();
 140         form_layout_.labelForField(&serial_devices_)->show();
 141 }
 142
 143 void Connect::scan_pressed()
 144 {
 145         device_list_.clear();
 146
 147         const int index = drivers_.currentIndex();
 148         if (index == -1)
 149                 return;
 150
 151         shared_ptr<Driver> driver =
 152                 drivers_.itemData(index).value<shared_ptr<Driver>>();
 153
 154         assert(driver);
 155
 156         map<const ConfigKey *, VariantBase> drvopts;
 157
 158         if (serial_devices_.isVisible()) {
 159                 QString serial;
 160                 const int index = serial_devices_.currentIndex();
 161                 if (index >= 0 && index < serial_devices_.count() &&
 162                     serial_devices_.currentText() == serial_devices_.itemText(index))
 163                         serial = serial_devices_.itemData(index).value<QString>();
 164                 else
 165                         serial = serial_devices_.currentText();
 166                 drvopts[ConfigKey::CONN] = Variant<ustring>::create(
 167                         serial.toUtf8().constData());
 168         }
 169
 170         list< shared_ptr<HardwareDevice> > devices =
 171                 device_manager_.driver_scan(driver, drvopts);
 172
 173         for (shared_ptr<HardwareDevice> device : devices)
 174         {
 175                 assert(device);
 176
 177                 QString text = QString::fromStdString(
 178                         device_manager_.get_display_name(device));
 179                 text += QString(" with %1 channels").arg(device->channels().size());
 180
 181                 QListWidgetItem *const item = new QListWidgetItem(text,
 182                         &device_list_);
 183                 item->setData(Qt::UserRole, qVariantFromValue(device));
 184                 device_list_.addItem(item);
 185         }
 186
 187         device_list_.setCurrentRow(0);
 188         button_box_.button(QDialogButtonBox::Ok)->setDisabled(device_list_.count() == 0);
 189 }
 190
 191 void Connect::device_selected(int index)
 192 {
 193         shared_ptr<Driver> driver =
 194                 drivers_.itemData(index).value<shared_ptr<Driver>>();
 195
 196         unset_connection();
 197
 198         if (driver->config_check(ConfigKey::SERIALCOMM, ConfigKey::SCAN_OPTIONS))
 199                 set_serial_connection(driver);
 200 }
 201
 202 } // namespace dialogs
 203 } // namespace pv