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 <assert.h>
  22
  23 #include <boost/foreach.hpp>
  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[11] = {
  36         1000000,
  37         2000000,
  38         5000000,
  39         10000000,
  40         25000000,
  41         50000000,
  42         100000000,
  43         250000000,
  44         500000000,
  45         1000000000,
  46         10000000000ULL,
  47 };
  48
  49 SamplingBar::SamplingBar(QWidget *parent) :
  50         QToolBar("Sampling Bar", parent),
  51         _device_selector(this),
  52         _configure_button(this),
  53         _record_length_selector(this),
  54         _sample_rate_list(this),
  55         _icon_green(":/icons/status-green.svg"),
  56         _icon_grey(":/icons/status-grey.svg"),
  57         _run_stop_button(this)
  58 {
  59         connect(&_run_stop_button, SIGNAL(clicked()),
  60                 this, SIGNAL(run_stop()));
  61         connect(&_device_selector, SIGNAL(currentIndexChanged (int)),
  62                 this, SLOT(on_device_selected()));
  63         connect(&_configure_button, SIGNAL(clicked()),
  64                 this, SLOT(configure()));
  65
  66         _sample_rate_value.setDecimals(0);
  67         _sample_rate_value.setSuffix("Hz");
  68
  69         BOOST_FOREACH(uint64_t l, RecordLengths)
  70         {
  71                 char *const text = sr_si_string_u64(l, " samples");
  72                 _record_length_selector.addItem(QString(text),
  73                         qVariantFromValue(l));
  74                 g_free(text);
  75         }
  76
  77         set_sampling(false);
  78
  79         _configure_button.setIcon(QIcon::fromTheme("configure",
  80                 QIcon(":/icons/configure.png")));
  81
  82         _run_stop_button.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
  83
  84         addWidget(&_device_selector);
  85         addWidget(&_configure_button);
  86         addWidget(&_record_length_selector);
  87         _sample_rate_list_action = addWidget(&_sample_rate_list);
  88         _sample_rate_value_action = addWidget(&_sample_rate_value);
  89         addWidget(&_run_stop_button);
  90
  91         update_device_selector();
  92         update_sample_rate_selector();
  93 }
  94
  95 struct sr_dev_inst* SamplingBar::get_selected_device() const
  96 {
  97         const int index = _device_selector.currentIndex();
  98         if (index < 0)
  99                 return NULL;
 100
 101         return (sr_dev_inst*)_device_selector.itemData(
 102                 index).value<void*>();
 103 }
 104
 105 uint64_t SamplingBar::get_record_length() const
 106 {
 107         const int index = _record_length_selector.currentIndex();
 108         if (index < 0)
 109                 return 0;
 110
 111         return _record_length_selector.itemData(index).value<uint64_t>();
 112 }
 113
 114 uint64_t SamplingBar::get_sample_rate() const
 115 {
 116         assert(_sample_rate_value_action);
 117         assert(_sample_rate_list_action);
 118
 119         if (_sample_rate_value_action->isVisible())
 120                 return (uint64_t)_sample_rate_value.value();
 121         else if (_sample_rate_list_action->isVisible())
 122         {
 123                 const int index = _sample_rate_list.currentIndex();
 124                 if (index < 0)
 125                         return 0;
 126
 127                 return _sample_rate_list.itemData(index).value<uint64_t>();
 128         }
 129
 130         return 0;
 131 }
 132
 133 void SamplingBar::set_sampling(bool sampling)
 134 {
 135         _run_stop_button.setIcon(sampling ? _icon_green : _icon_grey);
 136         _run_stop_button.setText(sampling ? "Stop" : "Run");
 137 }
 138
 139 void SamplingBar::update_device_selector()
 140 {
 141         GSList *devices = NULL;
 142
 143         /* Scan all drivers for all devices. */
 144         struct sr_dev_driver **const drivers = sr_driver_list();
 145         for (struct sr_dev_driver **driver = drivers; *driver; driver++) {
 146                 GSList *tmpdevs = sr_driver_scan(*driver, NULL);
 147                 for (GSList *l = tmpdevs; l; l = l->next)
 148                         devices = g_slist_append(devices, l->data);
 149                 g_slist_free(tmpdevs);
 150         }
 151
 152         for (GSList *l = devices; l; l = l->next) {
 153                 sr_dev_inst *const sdi = (sr_dev_inst*)l->data;
 154
 155                 QString title;
 156                 if (sdi->vendor && sdi->vendor[0])
 157                         title += sdi->vendor + QString(" ");
 158                 if (sdi->model && sdi->model[0])
 159                         title += sdi->model + QString(" ");
 160                 if (sdi->version && sdi->version[0])
 161                         title += sdi->version + QString(" ");
 162
 163                 _device_selector.addItem(title, qVariantFromValue(
 164                         (void*)sdi));
 165         }
 166
 167         g_slist_free(devices);
 168 }
 169
 170 void SamplingBar::update_sample_rate_selector()
 171 {
 172         const sr_dev_inst *const sdi = get_selected_device();
 173         const struct sr_samplerates *samplerates;
 174
 175         assert(_sample_rate_value_action);
 176         assert(_sample_rate_list_action);
 177
 178         if (sr_config_list(sdi->driver, SR_CONF_SAMPLERATE,
 179                 (const void **)&samplerates, sdi) != SR_OK)
 180                 return;
 181
 182         _sample_rate_list_action->setVisible(false);
 183         _sample_rate_value_action->setVisible(false);
 184
 185         if (samplerates->step)
 186         {
 187                 _sample_rate_value.setRange(
 188                         samplerates->low, samplerates->high);
 189                 _sample_rate_value.setSingleStep(samplerates->step);
 190                 _sample_rate_value_action->setVisible(true);
 191         }
 192         else
 193         {
 194                 _sample_rate_list.clear();
 195                 for (const uint64_t *rate = samplerates->list;
 196                      *rate; rate++)
 197                         _sample_rate_list.addItem(
 198                                 sr_samplerate_string(*rate),
 199                                 qVariantFromValue(*rate));
 200                 _sample_rate_list.show();
 201                 _sample_rate_list_action->setVisible(true);
 202         }
 203 }
 204
 205 void SamplingBar::on_device_selected()
 206 {
 207         update_sample_rate_selector();
 208 }
 209
 210 void SamplingBar::configure()
 211 {
 212         sr_dev_inst *const sdi = get_selected_device();
 213         assert(sdi);
 214
 215         pv::dialogs::DeviceOptions dlg(this, sdi);
 216         dlg.exec();
 217 }
 218
 219 } // namespace pv