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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 <extdef.h> | |
22 | ||
23 | #include <assert.h> | |
24 | ||
25 | #include <boost/foreach.hpp> | |
26 | ||
27 | #include <libsigrok/libsigrok.h> | |
28 | ||
29 | #include <QAction> | |
30 | #include <QDebug> | |
31 | ||
32 | #include "samplingbar.h" | |
33 | ||
34 | #include <pv/devicemanager.h> | |
35 | #include <pv/popups/deviceoptions.h> | |
36 | ||
37 | using namespace std; | |
38 | ||
39 | namespace pv { | |
40 | namespace toolbars { | |
41 | ||
42 | const uint64_t SamplingBar::RecordLengths[20] = { | |
43 | 1000, | |
44 | 2500, | |
45 | 5000, | |
46 | 10000, | |
47 | 25000, | |
48 | 50000, | |
49 | 100000, | |
50 | 250000, | |
51 | 500000, | |
52 | 1000000, | |
53 | 2000000, | |
54 | 5000000, | |
55 | 10000000, | |
56 | 25000000, | |
57 | 50000000, | |
58 | 100000000, | |
59 | 250000000, | |
60 | 500000000, | |
61 | 1000000000, | |
62 | 10000000000ULL, | |
63 | }; | |
64 | ||
65 | const uint64_t SamplingBar::DefaultRecordLength = 1000000; | |
66 | ||
67 | SamplingBar::SamplingBar(SigSession &session, QWidget *parent) : | |
68 | QToolBar("Sampling Bar", parent), | |
69 | _session(session), | |
70 | _device_selector(this), | |
71 | _updating_device_selector(false), | |
72 | _configure_button(this), | |
73 | _probes_button(this), | |
74 | _probes_popup(_session, this), | |
75 | _record_length_selector(this), | |
76 | _sample_rate_list(this), | |
77 | _icon_red(":/icons/status-red.svg"), | |
78 | _icon_green(":/icons/status-green.svg"), | |
79 | _icon_grey(":/icons/status-grey.svg"), | |
80 | _run_stop_button(this) | |
81 | { | |
82 | connect(&_run_stop_button, SIGNAL(clicked()), | |
83 | this, SLOT(on_run_stop())); | |
84 | connect(&_device_selector, SIGNAL(currentIndexChanged (int)), | |
85 | this, SLOT(on_device_selected())); | |
86 | ||
87 | _sample_rate_value.setDecimals(0); | |
88 | _sample_rate_value.setSuffix("Hz"); | |
89 | ||
90 | for (size_t i = 0; i < countof(RecordLengths); i++) | |
91 | { | |
92 | const uint64_t &l = RecordLengths[i]; | |
93 | char *const text = sr_si_string_u64(l, " samples"); | |
94 | _record_length_selector.addItem(QString(text), | |
95 | qVariantFromValue(l)); | |
96 | g_free(text); | |
97 | ||
98 | if (l == DefaultRecordLength) | |
99 | _record_length_selector.setCurrentIndex(i); | |
100 | } | |
101 | ||
102 | set_capture_state(pv::SigSession::Stopped); | |
103 | ||
104 | _configure_button.setIcon(QIcon::fromTheme("configure", | |
105 | QIcon(":/icons/configure.png"))); | |
106 | ||
107 | _probes_button.setIcon(QIcon::fromTheme("probes", | |
108 | QIcon(":/icons/probes.svg"))); | |
109 | _probes_button.set_popup(&_probes_popup); | |
110 | ||
111 | _run_stop_button.setToolButtonStyle(Qt::ToolButtonTextBesideIcon); | |
112 | ||
113 | addWidget(&_device_selector); | |
114 | addWidget(&_configure_button); | |
115 | addWidget(&_probes_button); | |
116 | addWidget(&_record_length_selector); | |
117 | _sample_rate_list_action = addWidget(&_sample_rate_list); | |
118 | _sample_rate_value_action = addWidget(&_sample_rate_value); | |
119 | addWidget(&_run_stop_button); | |
120 | ||
121 | connect(&_sample_rate_list, SIGNAL(currentIndexChanged(int)), | |
122 | this, SLOT(on_sample_rate_changed())); | |
123 | connect(&_sample_rate_value, SIGNAL(editingFinished()), | |
124 | this, SLOT(on_sample_rate_changed())); | |
125 | } | |
126 | ||
127 | void SamplingBar::set_device_list( | |
128 | const std::list<struct sr_dev_inst*> &devices) | |
129 | { | |
130 | _updating_device_selector = true; | |
131 | ||
132 | _device_selector.clear(); | |
133 | ||
134 | BOOST_FOREACH (sr_dev_inst *sdi, devices) { | |
135 | const string title = DeviceManager::format_device_title(sdi); | |
136 | _device_selector.addItem(title.c_str(), | |
137 | qVariantFromValue((void*)sdi)); | |
138 | } | |
139 | ||
140 | _updating_device_selector = false; | |
141 | ||
142 | on_device_selected(); | |
143 | } | |
144 | ||
145 | struct sr_dev_inst* SamplingBar::get_selected_device() const | |
146 | { | |
147 | const int index = _device_selector.currentIndex(); | |
148 | if (index < 0) | |
149 | return NULL; | |
150 | ||
151 | return (sr_dev_inst*)_device_selector.itemData( | |
152 | index).value<void*>(); | |
153 | } | |
154 | ||
155 | void SamplingBar::set_selected_device(struct sr_dev_inst *const sdi) | |
156 | { | |
157 | for (int i = 0; i < _device_selector.count(); i++) | |
158 | if (sdi == _device_selector.itemData(i).value<void*>()) { | |
159 | _device_selector.setCurrentIndex(i); | |
160 | return; | |
161 | } | |
162 | } | |
163 | ||
164 | uint64_t SamplingBar::get_record_length() const | |
165 | { | |
166 | const int index = _record_length_selector.currentIndex(); | |
167 | if (index < 0) | |
168 | return 0; | |
169 | ||
170 | return _record_length_selector.itemData(index).value<uint64_t>(); | |
171 | } | |
172 | ||
173 | void SamplingBar::set_capture_state(pv::SigSession::capture_state state) | |
174 | { | |
175 | const QIcon *icons[] = {&_icon_grey, &_icon_red, &_icon_green}; | |
176 | _run_stop_button.setIcon(*icons[state]); | |
177 | _run_stop_button.setText((state == pv::SigSession::Stopped) ? | |
178 | tr("Run") : tr("Stop")); | |
179 | } | |
180 | ||
181 | void SamplingBar::update_sample_rate_selector() | |
182 | { | |
183 | const sr_dev_inst *const sdi = get_selected_device(); | |
184 | GVariant *gvar_dict, *gvar_list; | |
185 | const uint64_t *elements = NULL; | |
186 | gsize num_elements; | |
187 | QAction *selector_action = NULL; | |
188 | ||
189 | assert(_sample_rate_value_action); | |
190 | assert(_sample_rate_list_action); | |
191 | ||
192 | if (!sdi) | |
193 | return; | |
194 | ||
195 | if (sr_config_list(sdi->driver, sdi, NULL, | |
196 | SR_CONF_SAMPLERATE, &gvar_dict) != SR_OK) | |
197 | return; | |
198 | ||
199 | _sample_rate_list_action->setVisible(false); | |
200 | _sample_rate_value_action->setVisible(false); | |
201 | ||
202 | if ((gvar_list = g_variant_lookup_value(gvar_dict, | |
203 | "samplerate-steps", G_VARIANT_TYPE("at")))) { | |
204 | elements = (const uint64_t *)g_variant_get_fixed_array( | |
205 | gvar_list, &num_elements, sizeof(uint64_t)); | |
206 | _sample_rate_value.setRange(elements[0], elements[1]); | |
207 | _sample_rate_value.setSingleStep(elements[2]); | |
208 | g_variant_unref(gvar_list); | |
209 | ||
210 | selector_action = _sample_rate_value_action; | |
211 | } | |
212 | else if ((gvar_list = g_variant_lookup_value(gvar_dict, | |
213 | "samplerates", G_VARIANT_TYPE("at")))) | |
214 | { | |
215 | elements = (const uint64_t *)g_variant_get_fixed_array( | |
216 | gvar_list, &num_elements, sizeof(uint64_t)); | |
217 | _sample_rate_list.clear(); | |
218 | ||
219 | for (unsigned int i = 0; i < num_elements; i++) | |
220 | { | |
221 | char *const s = sr_samplerate_string(elements[i]); | |
222 | _sample_rate_list.addItem(QString(s), | |
223 | qVariantFromValue(elements[i])); | |
224 | g_free(s); | |
225 | } | |
226 | ||
227 | _sample_rate_list.show(); | |
228 | g_variant_unref(gvar_list); | |
229 | ||
230 | selector_action = _sample_rate_list_action; | |
231 | } | |
232 | ||
233 | g_variant_unref(gvar_dict); | |
234 | update_sample_rate_selector_value(); | |
235 | ||
236 | // We delay showing the action, so that value change events | |
237 | // are ignored. | |
238 | if (selector_action) | |
239 | selector_action->setVisible(true); | |
240 | } | |
241 | ||
242 | void SamplingBar::update_sample_rate_selector_value() | |
243 | { | |
244 | sr_dev_inst *const sdi = get_selected_device(); | |
245 | GVariant *gvar; | |
246 | uint64_t samplerate; | |
247 | ||
248 | assert(sdi); | |
249 | ||
250 | if (sr_config_get(sdi->driver, sdi, NULL, | |
251 | SR_CONF_SAMPLERATE, &gvar) != SR_OK) { | |
252 | qDebug() << | |
253 | "WARNING: Failed to get value of sample rate"; | |
254 | return; | |
255 | } | |
256 | samplerate = g_variant_get_uint64(gvar); | |
257 | g_variant_unref(gvar); | |
258 | ||
259 | assert(_sample_rate_value_action); | |
260 | assert(_sample_rate_list_action); | |
261 | ||
262 | if (_sample_rate_value_action->isVisible()) | |
263 | _sample_rate_value.setValue(samplerate); | |
264 | else if (_sample_rate_list_action->isVisible()) | |
265 | { | |
266 | for (int i = 0; i < _sample_rate_list.count(); i++) | |
267 | if (samplerate == _sample_rate_list.itemData( | |
268 | i).value<uint64_t>()) | |
269 | _sample_rate_list.setCurrentIndex(i); | |
270 | } | |
271 | } | |
272 | ||
273 | void SamplingBar::commit_sample_rate() | |
274 | { | |
275 | uint64_t sample_rate = 0; | |
276 | ||
277 | sr_dev_inst *const sdi = get_selected_device(); | |
278 | assert(sdi); | |
279 | ||
280 | assert(_sample_rate_value_action); | |
281 | assert(_sample_rate_list_action); | |
282 | ||
283 | if (_sample_rate_value_action->isVisible()) | |
284 | sample_rate = (uint64_t)_sample_rate_value.value(); | |
285 | else if (_sample_rate_list_action->isVisible()) | |
286 | { | |
287 | const int index = _sample_rate_list.currentIndex(); | |
288 | if (index >= 0) | |
289 | sample_rate = _sample_rate_list.itemData( | |
290 | index).value<uint64_t>(); | |
291 | } | |
292 | ||
293 | if (sample_rate == 0) | |
294 | return; | |
295 | ||
296 | // Set the samplerate | |
297 | if (sr_config_set(sdi, NULL, SR_CONF_SAMPLERATE, | |
298 | g_variant_new_uint64(sample_rate)) != SR_OK) { | |
299 | qDebug() << "Failed to configure samplerate."; | |
300 | return; | |
301 | } | |
302 | } | |
303 | ||
304 | void SamplingBar::on_device_selected() | |
305 | { | |
306 | using namespace pv::popups; | |
307 | ||
308 | if (_updating_device_selector) | |
309 | return; | |
310 | ||
311 | update_sample_rate_selector(); | |
312 | ||
313 | sr_dev_inst *const sdi = get_selected_device(); | |
314 | _session.set_device(sdi); | |
315 | ||
316 | _configure_button.set_popup(new DeviceOptions(sdi, this)); | |
317 | } | |
318 | ||
319 | void SamplingBar::on_sample_rate_changed() | |
320 | { | |
321 | commit_sample_rate(); | |
322 | } | |
323 | ||
324 | void SamplingBar::on_run_stop() | |
325 | { | |
326 | commit_sample_rate(); | |
327 | run_stop(); | |
328 | } | |
329 | ||
330 | } // namespace toolbars | |
331 | } // namespace pv |