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