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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 | extern "C" { | |
24 | #include <libsigrok/libsigrok.h> | |
25 | } | |
26 | ||
27 | #include <QAction> | |
28 | ||
29 | #include "samplingbar.h" | |
30 | ||
31 | SamplingBar::SamplingBar(QWidget *parent) : | |
32 | QToolBar("Sampling Bar", parent), | |
33 | _device_selector(this), | |
34 | _sample_rate_list(this), | |
35 | _run_stop_button(this) | |
36 | { | |
37 | connect(&_run_stop_button, SIGNAL(clicked()), this, SIGNAL(run_stop())); | |
38 | connect(&_device_selector, SIGNAL(currentIndexChanged (int)), | |
39 | this, SLOT(on_device_selected())); | |
40 | ||
41 | _sample_rate_value.setDecimals(0); | |
42 | _sample_rate_value.setSuffix("Hz"); | |
43 | ||
44 | _run_stop_button.setText("Run"); | |
45 | ||
46 | addWidget(&_device_selector); | |
47 | _sample_rate_list_action = addWidget(&_sample_rate_list); | |
48 | _sample_rate_value_action = addWidget(&_sample_rate_value); | |
49 | addWidget(&_run_stop_button); | |
50 | ||
51 | update_device_selector(); | |
52 | update_sample_rate_selector(); | |
53 | } | |
54 | ||
55 | struct sr_dev_inst* SamplingBar::get_selected_device() const | |
56 | { | |
57 | const int index = _device_selector.currentIndex(); | |
58 | if(index < 0) | |
59 | return NULL; | |
60 | ||
61 | return (sr_dev_inst*)_device_selector.itemData( | |
62 | index).value<void*>(); | |
63 | } | |
64 | ||
65 | uint64_t SamplingBar::get_sample_rate() const | |
66 | { | |
67 | assert(_sample_rate_value_action); | |
68 | assert(_sample_rate_list_action); | |
69 | ||
70 | if(_sample_rate_value_action->isVisible()) | |
71 | return (uint64_t)_sample_rate_value.value(); | |
72 | else if(_sample_rate_list_action->isVisible()) | |
73 | { | |
74 | const int index = _device_selector.currentIndex(); | |
75 | if(index < 0) | |
76 | return 0; | |
77 | ||
78 | return _device_selector.itemData(index).value<uint64_t>(); | |
79 | } | |
80 | ||
81 | return 0; | |
82 | } | |
83 | ||
84 | void SamplingBar::update_device_selector() | |
85 | { | |
86 | GSList *devices = NULL; | |
87 | ||
88 | /* Scan all drivers for all devices. */ | |
89 | struct sr_dev_driver **const drivers = sr_driver_list(); | |
90 | for (struct sr_dev_driver **driver = drivers; *driver; driver++) { | |
91 | GSList *tmpdevs = sr_driver_scan(*driver, NULL); | |
92 | for (GSList *l = tmpdevs; l; l = l->next) | |
93 | devices = g_slist_append(devices, l->data); | |
94 | g_slist_free(tmpdevs); | |
95 | } | |
96 | ||
97 | for (GSList *l = devices; l; l = l->next) { | |
98 | sr_dev_inst *const sdi = (sr_dev_inst*)l->data; | |
99 | ||
100 | QString title; | |
101 | if (sdi->vendor && sdi->vendor[0]) | |
102 | title += sdi->vendor + QString(" "); | |
103 | if (sdi->model && sdi->model[0]) | |
104 | title += sdi->model + QString(" "); | |
105 | if (sdi->version && sdi->version[0]) | |
106 | title += sdi->version + QString(" "); | |
107 | ||
108 | _device_selector.addItem(title, qVariantFromValue( | |
109 | (void*)sdi)); | |
110 | } | |
111 | ||
112 | g_slist_free(devices); | |
113 | } | |
114 | ||
115 | void SamplingBar::update_sample_rate_selector() | |
116 | { | |
117 | const sr_dev_inst *const sdi = get_selected_device(); | |
118 | const struct sr_samplerates *samplerates; | |
119 | ||
120 | assert(_sample_rate_value_action); | |
121 | assert(_sample_rate_list_action); | |
122 | ||
123 | if (sr_info_get(sdi->driver, SR_DI_SAMPLERATES, | |
124 | (const void **)&samplerates, sdi) != SR_OK) | |
125 | return; | |
126 | ||
127 | _sample_rate_list_action->setVisible(false); | |
128 | _sample_rate_value_action->setVisible(false); | |
129 | ||
130 | if (samplerates->step) | |
131 | { | |
132 | _sample_rate_value.setRange( | |
133 | samplerates->low, samplerates->high); | |
134 | _sample_rate_value.setSingleStep(samplerates->step); | |
135 | _sample_rate_value_action->setVisible(true); | |
136 | } | |
137 | else | |
138 | { | |
139 | _sample_rate_list.clear(); | |
140 | for (const uint64_t *rate = samplerates->list; | |
141 | *rate; rate++) | |
142 | _sample_rate_list.addItem( | |
143 | sr_samplerate_string(*rate), | |
144 | qVariantFromValue(*rate)); | |
145 | _sample_rate_list.show(); | |
146 | _sample_rate_list_action->setVisible(true); | |
147 | } | |
148 | } | |
149 | ||
150 | void SamplingBar::on_device_selected() | |
151 | { | |
152 | update_sample_rate_selector(); | |
153 | } |