2 * This file is part of the sigrok project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
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.
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.
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
24 #include <libsigrok/libsigrok.h>
29 #include "samplingbar.h"
31 SamplingBar::SamplingBar(QWidget *parent) :
32 QToolBar("Sampling Bar", parent),
33 _device_selector(this),
34 _sample_rate_list(this),
35 _run_stop_button(this)
37 connect(&_run_stop_button, SIGNAL(clicked()), this, SIGNAL(run_stop()));
38 connect(&_device_selector, SIGNAL(currentIndexChanged (int)),
39 this, SLOT(on_device_selected()));
41 _sample_rate_value.setDecimals(0);
42 _sample_rate_value.setSuffix("Hz");
44 _run_stop_button.setText("Run");
46 addWidget(&_device_selector);
47 _sample_rate_list_action = addWidget(&_sample_rate_list);
48 _sample_rate_value_action = addWidget(&_sample_rate_value);
49 addWidget(&_run_stop_button);
51 update_device_selector();
52 update_sample_rate_selector();
55 struct sr_dev_inst* SamplingBar::get_selected_device() const
57 const int index = _device_selector.currentIndex();
61 return (sr_dev_inst*)_device_selector.itemData(
62 index).value<void*>();
65 uint64_t SamplingBar::get_sample_rate() const
67 assert(_sample_rate_value_action);
68 assert(_sample_rate_list_action);
70 if(_sample_rate_value_action->isVisible())
71 return (uint64_t)_sample_rate_value.value();
72 else if(_sample_rate_list_action->isVisible())
74 const int index = _device_selector.currentIndex();
78 return _device_selector.itemData(index).value<uint64_t>();
84 void SamplingBar::update_device_selector()
86 GSList *devices = NULL;
88 /* Scan all drivers for all devices. */
89 struct sr_dev_driver **const drivers = sr_driver_list();
90 for (struct sr_dev_driver **driver = drivers; *driver; driver++) {
91 GSList *tmpdevs = sr_driver_scan(*driver, NULL);
92 for (GSList *l = tmpdevs; l; l = l->next)
93 devices = g_slist_append(devices, l->data);
94 g_slist_free(tmpdevs);
97 for (GSList *l = devices; l; l = l->next) {
98 sr_dev_inst *const sdi = (sr_dev_inst*)l->data;
101 if (sdi->vendor && sdi->vendor[0])
102 title += sdi->vendor + QString(" ");
103 if (sdi->model && sdi->model[0])
104 title += sdi->model + QString(" ");
105 if (sdi->version && sdi->version[0])
106 title += sdi->version + QString(" ");
108 _device_selector.addItem(title, qVariantFromValue(
112 g_slist_free(devices);
115 void SamplingBar::update_sample_rate_selector()
117 const sr_dev_inst *const sdi = get_selected_device();
118 const struct sr_samplerates *samplerates;
120 assert(_sample_rate_value_action);
121 assert(_sample_rate_list_action);
123 if (sr_info_get(sdi->driver, SR_DI_SAMPLERATES,
124 (const void **)&samplerates, sdi) != SR_OK)
127 _sample_rate_list_action->setVisible(false);
128 _sample_rate_value_action->setVisible(false);
130 if (samplerates->step)
132 _sample_rate_value.setRange(
133 samplerates->low, samplerates->high);
134 _sample_rate_value.setSingleStep(samplerates->step);
135 _sample_rate_value_action->setVisible(true);
139 _sample_rate_list.clear();
140 for (const uint64_t *rate = samplerates->list;
142 _sample_rate_list.addItem(
143 sr_samplerate_string(*rate),
144 qVariantFromValue(*rate));
145 _sample_rate_list.show();
146 _sample_rate_list_action->setVisible(true);
150 void SamplingBar::on_device_selected()
152 update_sample_rate_selector();