pv/samplingbar.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 <extdef.h>
  22
  23 #include <assert.h>
  24
  25 #include <libsigrok/libsigrok.h>
  26
  27 #include <QAction>
  28
  29 #include "samplingbar.h"
  30
  31 #include <pv/dialogs/deviceoptions.h>
  32
  33 namespace pv {
  34
  35 const uint64_t SamplingBar::RecordLengths[20] = {
  36         1000,
  37         2500,
  38         5000,
  39         10000,
  40         25000,
  41         50000,
  42         100000,
  43         250000,
  44         500000,
  45         1000000,
  46         2000000,
  47         5000000,
  48         10000000,
  49         25000000,
  50         50000000,
  51         100000000,
  52         250000000,
  53         500000000,
  54         1000000000,
  55         10000000000ULL,
  56 };
  57
  58 const uint64_t SamplingBar::DefaultRecordLength = 1000000;
  59
  60 SamplingBar::SamplingBar(QWidget *parent) :
  61         QToolBar("Sampling Bar", parent),
  62         _device_selector(this),
  63         _configure_button(this),
  64         _record_length_selector(this),
  65         _sample_rate_list(this),
  66         _icon_green(":/icons/status-green.svg"),
  67         _icon_grey(":/icons/status-grey.svg"),
  68         _run_stop_button(this)
  69 {
  70         connect(&_run_stop_button, SIGNAL(clicked()),
  71                 this, SIGNAL(run_stop()));
  72         connect(&_device_selector, SIGNAL(currentIndexChanged (int)),
  73                 this, SLOT(on_device_selected()));
  74         connect(&_configure_button, SIGNAL(clicked()),
  75                 this, SLOT(configure()));
  76
  77         _sample_rate_value.setDecimals(0);
  78         _sample_rate_value.setSuffix("Hz");
  79
  80         for(size_t i = 0; i < countof(RecordLengths); i++)
  81         {
  82                 const uint64_t &l = RecordLengths[i];
  83                 char *const text = sr_si_string_u64(l, " samples");
  84                 _record_length_selector.addItem(QString(text),
  85                         qVariantFromValue(l));
  86                 g_free(text);
  87
  88                 if(l == DefaultRecordLength)
  89                         _record_length_selector.setCurrentIndex(i);
  90         }
  91
  92         set_sampling(false);
  93
  94         _configure_button.setIcon(QIcon::fromTheme("configure",
  95                 QIcon(":/icons/configure.png")));
  96
  97         _run_stop_button.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
  98
  99         addWidget(&_device_selector);
 100         addWidget(&_configure_button);
 101         addWidget(&_record_length_selector);
 102         _sample_rate_list_action = addWidget(&_sample_rate_list);
 103         _sample_rate_value_action = addWidget(&_sample_rate_value);
 104         addWidget(&_run_stop_button);
 105
 106         update_device_selector();
 107         update_sample_rate_selector();
 108 }
 109
 110 struct sr_dev_inst* SamplingBar::get_selected_device() const
 111 {
 112         const int index = _device_selector.currentIndex();
 113         if (index < 0)
 114                 return NULL;
 115
 116         return (sr_dev_inst*)_device_selector.itemData(
 117                 index).value<void*>();
 118 }
 119
 120 uint64_t SamplingBar::get_record_length() const
 121 {
 122         const int index = _record_length_selector.currentIndex();
 123         if (index < 0)
 124                 return 0;
 125
 126         return _record_length_selector.itemData(index).value<uint64_t>();
 127 }
 128
 129 uint64_t SamplingBar::get_sample_rate() const
 130 {
 131         assert(_sample_rate_value_action);
 132         assert(_sample_rate_list_action);
 133
 134         if (_sample_rate_value_action->isVisible())
 135                 return (uint64_t)_sample_rate_value.value();
 136         else if (_sample_rate_list_action->isVisible())
 137         {
 138                 const int index = _sample_rate_list.currentIndex();
 139                 if (index < 0)
 140                         return 0;
 141
 142                 return _sample_rate_list.itemData(index).value<uint64_t>();
 143         }
 144
 145         return 0;
 146 }
 147
 148 void SamplingBar::set_sampling(bool sampling)
 149 {
 150         _run_stop_button.setIcon(sampling ? _icon_green : _icon_grey);
 151         _run_stop_button.setText(sampling ? "Stop" : "Run");
 152 }
 153
 154 void SamplingBar::update_device_selector()
 155 {
 156         GSList *devices = NULL;
 157
 158         /* Scan all drivers for all devices. */
 159         struct sr_dev_driver **const drivers = sr_driver_list();
 160         for (struct sr_dev_driver **driver = drivers; *driver; driver++) {
 161                 GSList *tmpdevs = sr_driver_scan(*driver, NULL);
 162                 for (GSList *l = tmpdevs; l; l = l->next)
 163                         devices = g_slist_append(devices, l->data);
 164                 g_slist_free(tmpdevs);
 165         }
 166
 167         for (GSList *l = devices; l; l = l->next) {
 168                 sr_dev_inst *const sdi = (sr_dev_inst*)l->data;
 169
 170                 QString title;
 171                 if (sdi->vendor && sdi->vendor[0])
 172                         title += sdi->vendor + QString(" ");
 173                 if (sdi->model && sdi->model[0])
 174                         title += sdi->model + QString(" ");
 175                 if (sdi->version && sdi->version[0])
 176                         title += sdi->version + QString(" ");
 177
 178                 _device_selector.addItem(title, qVariantFromValue(
 179                         (void*)sdi));
 180         }
 181
 182         g_slist_free(devices);
 183 }
 184
 185 void SamplingBar::update_sample_rate_selector()
 186 {
 187         const sr_dev_inst *const sdi = get_selected_device();
 188         const struct sr_samplerates *samplerates;
 189
 190         assert(_sample_rate_value_action);
 191         assert(_sample_rate_list_action);
 192
 193         if (sr_config_list(sdi->driver, SR_CONF_SAMPLERATE,
 194                 (const void **)&samplerates, sdi) != SR_OK)
 195                 return;
 196
 197         _sample_rate_list_action->setVisible(false);
 198         _sample_rate_value_action->setVisible(false);
 199
 200         if (samplerates->step)
 201         {
 202                 _sample_rate_value.setRange(
 203                         samplerates->low, samplerates->high);
 204                 _sample_rate_value.setSingleStep(samplerates->step);
 205                 _sample_rate_value_action->setVisible(true);
 206         }
 207         else
 208         {
 209                 _sample_rate_list.clear();
 210                 for (const uint64_t *rate = samplerates->list;
 211                      *rate; rate++)
 212                         _sample_rate_list.addItem(
 213                                 sr_samplerate_string(*rate),
 214                                 qVariantFromValue(*rate));
 215                 _sample_rate_list.show();
 216                 _sample_rate_list_action->setVisible(true);
 217         }
 218 }
 219
 220 void SamplingBar::on_device_selected()
 221 {
 222         update_sample_rate_selector();
 223 }
 224
 225 void SamplingBar::configure()
 226 {
 227         sr_dev_inst *const sdi = get_selected_device();
 228         assert(sdi);
 229
 230         pv::dialogs::DeviceOptions dlg(this, sdi);
 231         dlg.exec();
 232 }
 233
 234 } // namespace pv