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)
36 connect(&_device_selector, SIGNAL(currentIndexChanged (int)),
37 this, SLOT(on_device_selected()));
39 _sample_rate_value.setDecimals(0);
40 _sample_rate_value.setSuffix("Hz");
42 addWidget(&_device_selector);
43 _sample_rate_list_action = addWidget(&_sample_rate_list);
44 _sample_rate_value_action = addWidget(&_sample_rate_value);
46 update_device_selector();
47 update_sample_rate_selector();
50 struct sr_dev_inst* SamplingBar::get_selected_device() const
52 const int index = _device_selector.currentIndex();
56 return (sr_dev_inst*)_device_selector.itemData(
57 index).value<void*>();
60 uint64_t SamplingBar::get_sample_rate() const
62 assert(_sample_rate_value_action);
63 assert(_sample_rate_list_action);
65 if(_sample_rate_value_action->isVisible())
66 return (uint64_t)_sample_rate_value.value();
67 else if(_sample_rate_list_action->isVisible())
69 const int index = _device_selector.currentIndex();
73 return _device_selector.itemData(index).value<uint64_t>();
79 void SamplingBar::update_device_selector()
81 GSList *devices = NULL;
83 /* Scan all drivers for all devices. */
84 struct sr_dev_driver **const drivers = sr_driver_list();
85 for (struct sr_dev_driver **driver = drivers; *driver; driver++) {
86 GSList *tmpdevs = sr_driver_scan(*driver, NULL);
87 for (GSList *l = tmpdevs; l; l = l->next)
88 devices = g_slist_append(devices, l->data);
89 g_slist_free(tmpdevs);
92 for (GSList *l = devices; l; l = l->next) {
93 sr_dev_inst *const sdi = (sr_dev_inst*)l->data;
96 if (sdi->vendor && sdi->vendor[0])
97 title += sdi->vendor + QString(" ");
98 if (sdi->model && sdi->model[0])
99 title += sdi->model + QString(" ");
100 if (sdi->version && sdi->version[0])
101 title += sdi->version + QString(" ");
103 _device_selector.addItem(title, qVariantFromValue(
107 g_slist_free(devices);
110 void SamplingBar::update_sample_rate_selector()
112 const sr_dev_inst *const sdi = get_selected_device();
113 const struct sr_samplerates *samplerates;
115 assert(_sample_rate_value_action);
116 assert(_sample_rate_list_action);
118 if (sr_info_get(sdi->driver, SR_DI_SAMPLERATES,
119 (const void **)&samplerates, sdi) != SR_OK)
122 _sample_rate_list_action->setVisible(false);
123 _sample_rate_value_action->setVisible(false);
125 if (samplerates->step)
127 _sample_rate_value.setRange(
128 samplerates->low, samplerates->high);
129 _sample_rate_value.setSingleStep(samplerates->step);
130 _sample_rate_value_action->setVisible(true);
134 _sample_rate_list.clear();
135 for (const uint64_t *rate = samplerates->list;
137 _sample_rate_list.addItem(
138 sr_samplerate_string(*rate),
139 qVariantFromValue(*rate));
140 _sample_rate_list.show();
141 _sample_rate_list_action->setVisible(true);
145 void SamplingBar::on_device_selected()
147 update_sample_rate_selector();