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/dialogs/deviceoptions.h>
42 const uint64_t SamplingBar::RecordLengths[20] = {
65 const uint64_t SamplingBar::DefaultRecordLength = 1000000;
67 SamplingBar::SamplingBar(QWidget *parent) :
68 QToolBar("Sampling Bar", parent),
69 _device_selector(this),
70 _configure_button(this),
71 _record_length_selector(this),
72 _sample_rate_list(this),
73 _icon_green(":/icons/status-green.svg"),
74 _icon_grey(":/icons/status-grey.svg"),
75 _run_stop_button(this)
77 connect(&_run_stop_button, SIGNAL(clicked()),
78 this, SLOT(on_run_stop()));
79 connect(&_device_selector, SIGNAL(currentIndexChanged (int)),
80 this, SLOT(on_device_selected()));
81 connect(&_configure_button, SIGNAL(clicked()),
82 this, SLOT(on_configure()));
84 _sample_rate_value.setDecimals(0);
85 _sample_rate_value.setSuffix("Hz");
87 for (size_t i = 0; i < countof(RecordLengths); i++)
89 const uint64_t &l = RecordLengths[i];
90 char *const text = sr_si_string_u64(l, " samples");
91 _record_length_selector.addItem(QString(text),
92 qVariantFromValue(l));
95 if (l == DefaultRecordLength)
96 _record_length_selector.setCurrentIndex(i);
101 _configure_button.setIcon(QIcon::fromTheme("configure",
102 QIcon(":/icons/configure.png")));
104 _run_stop_button.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
106 addWidget(&_device_selector);
107 addWidget(&_configure_button);
108 addWidget(&_record_length_selector);
109 _sample_rate_list_action = addWidget(&_sample_rate_list);
110 _sample_rate_value_action = addWidget(&_sample_rate_value);
111 addWidget(&_run_stop_button);
113 connect(&_sample_rate_list, SIGNAL(currentIndexChanged(int)),
114 this, SLOT(on_sample_rate_changed()));
115 connect(&_sample_rate_value, SIGNAL(editingFinished()),
116 this, SLOT(on_sample_rate_changed()));
119 void SamplingBar::set_device_list(
120 const std::list<struct sr_dev_inst*> &devices)
122 _device_selector.clear();
124 BOOST_FOREACH (sr_dev_inst *sdi, devices) {
125 const string title = DeviceManager::format_device_title(sdi);
126 _device_selector.addItem(title.c_str(),
127 qVariantFromValue((void*)sdi));
130 update_sample_rate_selector();
133 struct sr_dev_inst* SamplingBar::get_selected_device() const
135 const int index = _device_selector.currentIndex();
139 return (sr_dev_inst*)_device_selector.itemData(
140 index).value<void*>();
143 void SamplingBar::set_selected_device(struct sr_dev_inst *const sdi)
145 for (int i = 0; i < _device_selector.count(); i++)
146 if (sdi == _device_selector.itemData(i).value<void*>()) {
147 _device_selector.setCurrentIndex(i);
152 uint64_t SamplingBar::get_record_length() const
154 const int index = _record_length_selector.currentIndex();
158 return _record_length_selector.itemData(index).value<uint64_t>();
161 void SamplingBar::set_sampling(bool sampling)
163 _run_stop_button.setIcon(sampling ? _icon_green : _icon_grey);
164 _run_stop_button.setText(sampling ? "Stop" : "Run");
167 void SamplingBar::update_sample_rate_selector()
169 const sr_dev_inst *const sdi = get_selected_device();
170 GVariant *gvar_dict, *gvar_list;
171 const uint64_t *elements = NULL;
173 QAction *selector_action = NULL;
175 assert(_sample_rate_value_action);
176 assert(_sample_rate_list_action);
181 if (sr_config_list(sdi->driver, SR_CONF_SAMPLERATE,
182 &gvar_dict, sdi) != SR_OK)
185 _sample_rate_list_action->setVisible(false);
186 _sample_rate_value_action->setVisible(false);
188 if ((gvar_list = g_variant_lookup_value(gvar_dict,
189 "samplerate-steps", G_VARIANT_TYPE("at")))) {
190 elements = (const uint64_t *)g_variant_get_fixed_array(
191 gvar_list, &num_elements, sizeof(uint64_t));
192 _sample_rate_value.setRange(elements[0], elements[1]);
193 _sample_rate_value.setSingleStep(elements[2]);
194 g_variant_unref(gvar_list);
196 selector_action = _sample_rate_value_action;
198 else if ((gvar_list = g_variant_lookup_value(gvar_dict,
199 "samplerates", 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_list.clear();
205 for (unsigned int i = 0; i < num_elements; i++)
207 char *const s = sr_samplerate_string(elements[i]);
208 _sample_rate_list.addItem(QString(s),
209 qVariantFromValue(elements[i]));
213 _sample_rate_list.show();
214 g_variant_unref(gvar_list);
216 selector_action = _sample_rate_list_action;
219 g_variant_unref(gvar_dict);
220 update_sample_rate_selector_value();
222 // We delay showing the action, so that value change events
225 selector_action->setVisible(true);
228 void SamplingBar::update_sample_rate_selector_value()
230 sr_dev_inst *const sdi = get_selected_device();
236 if (sr_config_get(sdi->driver, SR_CONF_SAMPLERATE,
237 &gvar, sdi) != SR_OK) {
239 "WARNING: Failed to get value of sample rate";
242 samplerate = g_variant_get_uint64(gvar);
243 g_variant_unref(gvar);
245 assert(_sample_rate_value_action);
246 assert(_sample_rate_list_action);
248 if (_sample_rate_value_action->isVisible())
249 _sample_rate_value.setValue(samplerate);
250 else if (_sample_rate_list_action->isVisible())
252 for (int i = 0; i < _sample_rate_list.count(); i++)
253 if (samplerate == _sample_rate_list.itemData(
254 i).value<uint64_t>())
255 _sample_rate_list.setCurrentIndex(i);
259 void SamplingBar::commit_sample_rate()
261 uint64_t sample_rate = 0;
263 sr_dev_inst *const sdi = get_selected_device();
266 assert(_sample_rate_value_action);
267 assert(_sample_rate_list_action);
269 if (_sample_rate_value_action->isVisible())
270 sample_rate = (uint64_t)_sample_rate_value.value();
271 else if (_sample_rate_list_action->isVisible())
273 const int index = _sample_rate_list.currentIndex();
275 sample_rate = _sample_rate_list.itemData(
276 index).value<uint64_t>();
279 if (sample_rate == 0)
282 // Set the samplerate
283 if (sr_config_set(sdi, SR_CONF_SAMPLERATE,
284 g_variant_new_uint64(sample_rate)) != SR_OK) {
285 qDebug() << "Failed to configure samplerate.";
290 void SamplingBar::on_device_selected()
292 update_sample_rate_selector();
296 void SamplingBar::on_sample_rate_changed()
298 commit_sample_rate();
301 void SamplingBar::on_configure()
303 commit_sample_rate();
305 sr_dev_inst *const sdi = get_selected_device();
308 pv::dialogs::DeviceOptions dlg(this, sdi);
311 update_sample_rate_selector_value();
314 void SamplingBar::on_run_stop()
316 commit_sample_rate();
320 } // namespace toolbars