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 extern "C" {
  26 #include <libsigrok/libsigrok.h>
  27 }
  28
  29 #include <QAction>
  30
  31 #include "samplingbar.h"
  32
  33 #include <pv/dialogs/hwcap.h>
  34
  35 namespace pv {
  36
  37 const uint64_t SamplingBar::RecordLengths[11] = {
  38         1000000,
  39         2000000,
  40         5000000,
  41         10000000,
  42         25000000,
  43         50000000,
  44         100000000,
  45         250000000,
  46         500000000,
  47         1000000000,
  48         10000000000ULL,
  49 };
  50
  51 SamplingBar::SamplingBar(QWidget *parent) :
  52         QToolBar("Sampling Bar", parent),
  53         _device_selector(this),
  54         _configure_button(this),
  55         _record_length_selector(this),
  56         _sample_rate_list(this),
  57         _icon_green(":/icons/status-green.svg"),
  58         _icon_grey(":/icons/status-grey.svg"),
  59         _run_stop_button(this)
  60 {
  61         connect(&_run_stop_button, SIGNAL(clicked()),
  62                 this, SIGNAL(run_stop()));
  63         connect(&_device_selector, SIGNAL(currentIndexChanged (int)),
  64                 this, SLOT(on_device_selected()));
  65         connect(&_configure_button, SIGNAL(clicked()),
  66                 this, SLOT(configure()));
  67
  68         _sample_rate_value.setDecimals(0);
  69         _sample_rate_value.setSuffix("Hz");
  70
  71         BOOST_FOREACH(uint64_t l, RecordLengths)
  72         {
  73                 char *const text = sr_si_string_u64(l, " samples");
  74                 _record_length_selector.addItem(QString(text),
  75                         qVariantFromValue(l));
  76                 g_free(text);
  77         }
  78
  79         set_sampling(false);
  80
  81         _configure_button.setIcon(QIcon::fromTheme("configure",
  82                 QIcon(":/icons/configure.png")));
  83
  84         _run_stop_button.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
  85
  86         addWidget(&_device_selector);
  87         addWidget(&_configure_button);
  88         addWidget(&_record_length_selector);
  89         _sample_rate_list_action = addWidget(&_sample_rate_list);
  90         _sample_rate_value_action = addWidget(&_sample_rate_value);
  91         addWidget(&_run_stop_button);
  92
  93         update_device_selector();
  94         update_sample_rate_selector();
  95 }
  96
  97 struct sr_dev_inst* SamplingBar::get_selected_device() const
  98 {
  99         const int index = _device_selector.currentIndex();
 100         if (index < 0)
 101                 return NULL;
 102
 103         return (sr_dev_inst*)_device_selector.itemData(
 104                 index).value<void*>();
 105 }
 106
 107 uint64_t SamplingBar::get_record_length() const
 108 {
 109         const int index = _record_length_selector.currentIndex();
 110         if (index < 0)
 111                 return 0;
 112
 113         return _record_length_selector.itemData(index).value<uint64_t>();
 114 }
 115
 116 uint64_t SamplingBar::get_sample_rate() const
 117 {
 118         assert(_sample_rate_value_action);
 119         assert(_sample_rate_list_action);
 120
 121         if (_sample_rate_value_action->isVisible())
 122                 return (uint64_t)_sample_rate_value.value();
 123         else if (_sample_rate_list_action->isVisible())
 124         {
 125                 const int index = _sample_rate_list.currentIndex();
 126                 if (index < 0)
 127                         return 0;
 128
 129                 return _sample_rate_list.itemData(index).value<uint64_t>();
 130         }
 131
 132         return 0;
 133 }
 134
 135 void SamplingBar::set_sampling(bool sampling)
 136 {
 137         _run_stop_button.setIcon(sampling ? _icon_green : _icon_grey);
 138         _run_stop_button.setText(sampling ? "Stop" : "Run");
 139 }
 140
 141 void SamplingBar::update_device_selector()
 142 {
 143         GSList *devices = NULL;
 144
 145         /* Scan all drivers for all devices. */
 146         struct sr_dev_driver **const drivers = sr_driver_list();
 147         for (struct sr_dev_driver **driver = drivers; *driver; driver++) {
 148                 GSList *tmpdevs = sr_driver_scan(*driver, NULL);
 149                 for (GSList *l = tmpdevs; l; l = l->next)
 150                         devices = g_slist_append(devices, l->data);
 151                 g_slist_free(tmpdevs);
 152         }
 153
 154         for (GSList *l = devices; l; l = l->next) {
 155                 sr_dev_inst *const sdi = (sr_dev_inst*)l->data;
 156
 157                 QString title;
 158                 if (sdi->vendor && sdi->vendor[0])
 159                         title += sdi->vendor + QString(" ");
 160                 if (sdi->model && sdi->model[0])
 161                         title += sdi->model + QString(" ");
 162                 if (sdi->version && sdi->version[0])
 163                         title += sdi->version + QString(" ");
 164
 165                 _device_selector.addItem(title, qVariantFromValue(
 166                         (void*)sdi));
 167         }
 168
 169         g_slist_free(devices);
 170 }
 171
 172 void SamplingBar::update_sample_rate_selector()
 173 {
 174         const sr_dev_inst *const sdi = get_selected_device();
 175         const struct sr_samplerates *samplerates;
 176
 177         assert(_sample_rate_value_action);
 178         assert(_sample_rate_list_action);
 179
 180         if (sr_info_get(sdi->driver, SR_DI_SAMPLERATES,
 181                 (const void **)&samplerates, sdi) != SR_OK)
 182                 return;
 183
 184         _sample_rate_list_action->setVisible(false);
 185         _sample_rate_value_action->setVisible(false);
 186
 187         if (samplerates->step)
 188         {
 189                 _sample_rate_value.setRange(
 190                         samplerates->low, samplerates->high);
 191                 _sample_rate_value.setSingleStep(samplerates->step);
 192                 _sample_rate_value_action->setVisible(true);
 193         }
 194         else
 195         {
 196                 _sample_rate_list.clear();
 197                 for (const uint64_t *rate = samplerates->list;
 198                      *rate; rate++)
 199                         _sample_rate_list.addItem(
 200                                 sr_samplerate_string(*rate),
 201                                 qVariantFromValue(*rate));
 202                 _sample_rate_list.show();
 203                 _sample_rate_list_action->setVisible(true);
 204         }
 205 }
 206
 207 void SamplingBar::on_device_selected()
 208 {
 209         update_sample_rate_selector();
 210 }
 211
 212 void SamplingBar::configure()
 213 {
 214         sr_dev_inst *const sdi = get_selected_device();
 215         assert(sdi);
 216
 217         pv::dialogs::HwCap dlg(this, sdi);
 218         dlg.exec();
 219 }
 220
 221 } // namespace pv