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1 | /* | |
2 | * This file is part of the sigrok 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 <assert.h> | |
22 | ||
23 | #include <boost/foreach.hpp> | |
24 | ||
25 | extern "C" { | |
26 | #include <libsigrok/libsigrok.h> | |
27 | } | |
28 | ||
29 | #include <QAction> | |
30 | ||
31 | #include "samplingbar.h" | |
32 | ||
33 | const uint64_t SamplingBar::RecordLengths[11] = { | |
34 | 1000000, | |
35 | 2000000, | |
36 | 5000000, | |
37 | 10000000, | |
38 | 25000000, | |
39 | 50000000, | |
40 | 100000000, | |
41 | 250000000, | |
42 | 500000000, | |
43 | 1000000000, | |
44 | 10000000000 | |
45 | }; | |
46 | ||
47 | SamplingBar::SamplingBar(QWidget *parent) : | |
48 | QToolBar("Sampling Bar", parent), | |
49 | _device_selector(this), | |
50 | _record_length_selector(this), | |
51 | _sample_rate_list(this), | |
52 | _run_stop_button(this) | |
53 | { | |
54 | connect(&_run_stop_button, SIGNAL(clicked()), this, SIGNAL(run_stop())); | |
55 | connect(&_device_selector, SIGNAL(currentIndexChanged (int)), | |
56 | this, SLOT(on_device_selected())); | |
57 | ||
58 | _sample_rate_value.setDecimals(0); | |
59 | _sample_rate_value.setSuffix("Hz"); | |
60 | ||
61 | BOOST_FOREACH(uint64_t l, RecordLengths) | |
62 | { | |
63 | char *const text = sr_si_string_u64(l, " samples"); | |
64 | _record_length_selector.addItem(QString(text), | |
65 | qVariantFromValue(l)); | |
66 | g_free(text); | |
67 | } | |
68 | ||
69 | _run_stop_button.setText("Run"); | |
70 | ||
71 | addWidget(&_device_selector); | |
72 | addWidget(&_record_length_selector); | |
73 | _sample_rate_list_action = addWidget(&_sample_rate_list); | |
74 | _sample_rate_value_action = addWidget(&_sample_rate_value); | |
75 | addWidget(&_run_stop_button); | |
76 | ||
77 | update_device_selector(); | |
78 | update_sample_rate_selector(); | |
79 | } | |
80 | ||
81 | struct sr_dev_inst* SamplingBar::get_selected_device() const | |
82 | { | |
83 | const int index = _device_selector.currentIndex(); | |
84 | if(index < 0) | |
85 | return NULL; | |
86 | ||
87 | return (sr_dev_inst*)_device_selector.itemData( | |
88 | index).value<void*>(); | |
89 | } | |
90 | ||
91 | uint64_t SamplingBar::get_record_length() const | |
92 | { | |
93 | const int index = _record_length_selector.currentIndex(); | |
94 | if(index < 0) | |
95 | return 0; | |
96 | ||
97 | return _record_length_selector.itemData(index).value<uint64_t>(); | |
98 | } | |
99 | ||
100 | uint64_t SamplingBar::get_sample_rate() const | |
101 | { | |
102 | assert(_sample_rate_value_action); | |
103 | assert(_sample_rate_list_action); | |
104 | ||
105 | if(_sample_rate_value_action->isVisible()) | |
106 | return (uint64_t)_sample_rate_value.value(); | |
107 | else if(_sample_rate_list_action->isVisible()) | |
108 | { | |
109 | const int index = _sample_rate_list.currentIndex(); | |
110 | if(index < 0) | |
111 | return 0; | |
112 | ||
113 | return _sample_rate_list.itemData(index).value<uint64_t>(); | |
114 | } | |
115 | ||
116 | return 0; | |
117 | } | |
118 | ||
119 | void SamplingBar::update_device_selector() | |
120 | { | |
121 | GSList *devices = NULL; | |
122 | ||
123 | /* Scan all drivers for all devices. */ | |
124 | struct sr_dev_driver **const drivers = sr_driver_list(); | |
125 | for (struct sr_dev_driver **driver = drivers; *driver; driver++) { | |
126 | GSList *tmpdevs = sr_driver_scan(*driver, NULL); | |
127 | for (GSList *l = tmpdevs; l; l = l->next) | |
128 | devices = g_slist_append(devices, l->data); | |
129 | g_slist_free(tmpdevs); | |
130 | } | |
131 | ||
132 | for (GSList *l = devices; l; l = l->next) { | |
133 | sr_dev_inst *const sdi = (sr_dev_inst*)l->data; | |
134 | ||
135 | QString title; | |
136 | if (sdi->vendor && sdi->vendor[0]) | |
137 | title += sdi->vendor + QString(" "); | |
138 | if (sdi->model && sdi->model[0]) | |
139 | title += sdi->model + QString(" "); | |
140 | if (sdi->version && sdi->version[0]) | |
141 | title += sdi->version + QString(" "); | |
142 | ||
143 | _device_selector.addItem(title, qVariantFromValue( | |
144 | (void*)sdi)); | |
145 | } | |
146 | ||
147 | g_slist_free(devices); | |
148 | } | |
149 | ||
150 | void SamplingBar::update_sample_rate_selector() | |
151 | { | |
152 | const sr_dev_inst *const sdi = get_selected_device(); | |
153 | const struct sr_samplerates *samplerates; | |
154 | ||
155 | assert(_sample_rate_value_action); | |
156 | assert(_sample_rate_list_action); | |
157 | ||
158 | if (sr_info_get(sdi->driver, SR_DI_SAMPLERATES, | |
159 | (const void **)&samplerates, sdi) != SR_OK) | |
160 | return; | |
161 | ||
162 | _sample_rate_list_action->setVisible(false); | |
163 | _sample_rate_value_action->setVisible(false); | |
164 | ||
165 | if (samplerates->step) | |
166 | { | |
167 | _sample_rate_value.setRange( | |
168 | samplerates->low, samplerates->high); | |
169 | _sample_rate_value.setSingleStep(samplerates->step); | |
170 | _sample_rate_value_action->setVisible(true); | |
171 | } | |
172 | else | |
173 | { | |
174 | _sample_rate_list.clear(); | |
175 | for (const uint64_t *rate = samplerates->list; | |
176 | *rate; rate++) | |
177 | _sample_rate_list.addItem( | |
178 | sr_samplerate_string(*rate), | |
179 | qVariantFromValue(*rate)); | |
180 | _sample_rate_list.show(); | |
181 | _sample_rate_list_action->setVisible(true); | |
182 | } | |
183 | } | |
184 | ||
185 | void SamplingBar::on_device_selected() | |
186 | { | |
187 | update_sample_rate_selector(); | |
188 | } |