2 * This file is part of the PulseView 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
25 #include <boost/foreach.hpp>
27 #include <libsigrok/libsigrok.h>
32 #include "samplingbar.h"
34 #include <pv/devicemanager.h>
35 #include <pv/popups/deviceoptions.h>
42 const uint64_t SamplingBar::RecordLengths[20] = {
65 const uint64_t SamplingBar::DefaultRecordLength = 1000000;
67 SamplingBar::SamplingBar(SigSession &session, QWidget *parent) :
68 QToolBar("Sampling Bar", parent),
70 _device_selector(this),
71 _updating_device_selector(false),
72 _configure_button(this),
74 _record_length_selector(this),
75 _sample_rate_list(this),
76 _icon_red(":/icons/status-red.svg"),
77 _icon_green(":/icons/status-green.svg"),
78 _icon_grey(":/icons/status-grey.svg"),
79 _run_stop_button(this)
81 connect(&_run_stop_button, SIGNAL(clicked()),
82 this, SLOT(on_run_stop()));
83 connect(&_device_selector, SIGNAL(currentIndexChanged (int)),
84 this, SLOT(on_device_selected()));
86 _sample_rate_value.setDecimals(0);
87 _sample_rate_value.setSuffix("Hz");
89 for (size_t i = 0; i < countof(RecordLengths); i++)
91 const uint64_t &l = RecordLengths[i];
92 char *const text = sr_si_string_u64(l, " samples");
93 _record_length_selector.addItem(QString(text),
94 qVariantFromValue(l));
97 if (l == DefaultRecordLength)
98 _record_length_selector.setCurrentIndex(i);
101 set_capture_state(pv::SigSession::Stopped);
103 _configure_button.setIcon(QIcon::fromTheme("configure",
104 QIcon(":/icons/configure.png")));
105 _probes_button.setIcon(QIcon::fromTheme("probes",
106 QIcon(":/icons/probes.svg")));
108 _run_stop_button.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
110 addWidget(&_device_selector);
111 addWidget(&_configure_button);
112 addWidget(&_probes_button);
113 addWidget(&_record_length_selector);
114 _sample_rate_list_action = addWidget(&_sample_rate_list);
115 _sample_rate_value_action = addWidget(&_sample_rate_value);
116 addWidget(&_run_stop_button);
118 connect(&_sample_rate_list, SIGNAL(currentIndexChanged(int)),
119 this, SLOT(on_sample_rate_changed()));
120 connect(&_sample_rate_value, SIGNAL(editingFinished()),
121 this, SLOT(on_sample_rate_changed()));
124 void SamplingBar::set_device_list(
125 const std::list<struct sr_dev_inst*> &devices)
127 _updating_device_selector = true;
129 _device_selector.clear();
131 BOOST_FOREACH (sr_dev_inst *sdi, devices) {
132 const string title = DeviceManager::format_device_title(sdi);
133 _device_selector.addItem(title.c_str(),
134 qVariantFromValue((void*)sdi));
137 _updating_device_selector = false;
139 update_sample_rate_selector();
142 struct sr_dev_inst* SamplingBar::get_selected_device() const
144 const int index = _device_selector.currentIndex();
148 return (sr_dev_inst*)_device_selector.itemData(
149 index).value<void*>();
152 void SamplingBar::set_selected_device(struct sr_dev_inst *const sdi)
154 for (int i = 0; i < _device_selector.count(); i++)
155 if (sdi == _device_selector.itemData(i).value<void*>()) {
156 _device_selector.setCurrentIndex(i);
161 uint64_t SamplingBar::get_record_length() const
163 const int index = _record_length_selector.currentIndex();
167 return _record_length_selector.itemData(index).value<uint64_t>();
170 void SamplingBar::set_capture_state(pv::SigSession::capture_state state)
172 const QIcon *icons[] = {&_icon_grey, &_icon_red, &_icon_green};
173 _run_stop_button.setIcon(*icons[state]);
174 _run_stop_button.setText((state == pv::SigSession::Stopped) ?
175 tr("Run") : tr("Stop"));
178 void SamplingBar::update_sample_rate_selector()
180 const sr_dev_inst *const sdi = get_selected_device();
181 GVariant *gvar_dict, *gvar_list;
182 const uint64_t *elements = NULL;
184 QAction *selector_action = NULL;
186 assert(_sample_rate_value_action);
187 assert(_sample_rate_list_action);
192 if (sr_config_list(sdi->driver, SR_CONF_SAMPLERATE,
193 &gvar_dict, sdi) != SR_OK)
196 _sample_rate_list_action->setVisible(false);
197 _sample_rate_value_action->setVisible(false);
199 if ((gvar_list = g_variant_lookup_value(gvar_dict,
200 "samplerate-steps", G_VARIANT_TYPE("at")))) {
201 elements = (const uint64_t *)g_variant_get_fixed_array(
202 gvar_list, &num_elements, sizeof(uint64_t));
203 _sample_rate_value.setRange(elements[0], elements[1]);
204 _sample_rate_value.setSingleStep(elements[2]);
205 g_variant_unref(gvar_list);
207 selector_action = _sample_rate_value_action;
209 else if ((gvar_list = g_variant_lookup_value(gvar_dict,
210 "samplerates", G_VARIANT_TYPE("at"))))
212 elements = (const uint64_t *)g_variant_get_fixed_array(
213 gvar_list, &num_elements, sizeof(uint64_t));
214 _sample_rate_list.clear();
216 for (unsigned int i = 0; i < num_elements; i++)
218 char *const s = sr_samplerate_string(elements[i]);
219 _sample_rate_list.addItem(QString(s),
220 qVariantFromValue(elements[i]));
224 _sample_rate_list.show();
225 g_variant_unref(gvar_list);
227 selector_action = _sample_rate_list_action;
230 g_variant_unref(gvar_dict);
231 update_sample_rate_selector_value();
233 // We delay showing the action, so that value change events
236 selector_action->setVisible(true);
239 void SamplingBar::update_sample_rate_selector_value()
241 sr_dev_inst *const sdi = get_selected_device();
247 if (sr_config_get(sdi->driver, SR_CONF_SAMPLERATE,
248 &gvar, sdi) != SR_OK) {
250 "WARNING: Failed to get value of sample rate";
253 samplerate = g_variant_get_uint64(gvar);
254 g_variant_unref(gvar);
256 assert(_sample_rate_value_action);
257 assert(_sample_rate_list_action);
259 if (_sample_rate_value_action->isVisible())
260 _sample_rate_value.setValue(samplerate);
261 else if (_sample_rate_list_action->isVisible())
263 for (int i = 0; i < _sample_rate_list.count(); i++)
264 if (samplerate == _sample_rate_list.itemData(
265 i).value<uint64_t>())
266 _sample_rate_list.setCurrentIndex(i);
270 void SamplingBar::commit_sample_rate()
272 uint64_t sample_rate = 0;
274 sr_dev_inst *const sdi = get_selected_device();
277 assert(_sample_rate_value_action);
278 assert(_sample_rate_list_action);
280 if (_sample_rate_value_action->isVisible())
281 sample_rate = (uint64_t)_sample_rate_value.value();
282 else if (_sample_rate_list_action->isVisible())
284 const int index = _sample_rate_list.currentIndex();
286 sample_rate = _sample_rate_list.itemData(
287 index).value<uint64_t>();
290 if (sample_rate == 0)
293 // Set the samplerate
294 if (sr_config_set(sdi, SR_CONF_SAMPLERATE,
295 g_variant_new_uint64(sample_rate)) != SR_OK) {
296 qDebug() << "Failed to configure samplerate.";
301 void SamplingBar::on_device_selected()
303 using namespace pv::popups;
305 if (_updating_device_selector)
308 update_sample_rate_selector();
310 sr_dev_inst *const sdi = get_selected_device();
311 _session.set_device(sdi);
313 _configure_button.set_popup(new DeviceOptions(sdi, this));
314 _probes_button.set_popup(new Probes(_session, this));
317 void SamplingBar::on_sample_rate_changed()
319 commit_sample_rate();
322 void SamplingBar::on_run_stop()
324 commit_sample_rate();
328 } // namespace toolbars