--- /dev/null
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <assert.h>
+
+#include <boost/foreach.hpp>
+
+extern "C" {
+#include <libsigrok/libsigrok.h>
+}
+
+#include <QAction>
+
+#include "samplingbar.h"
+
+namespace pv {
+
+const uint64_t SamplingBar::RecordLengths[11] = {
+ 1000000,
+ 2000000,
+ 5000000,
+ 10000000,
+ 25000000,
+ 50000000,
+ 100000000,
+ 250000000,
+ 500000000,
+ 1000000000,
+ 10000000000
+};
+
+SamplingBar::SamplingBar(QWidget *parent) :
+ QToolBar("Sampling Bar", parent),
+ _device_selector(this),
+ _record_length_selector(this),
+ _sample_rate_list(this),
+ _run_stop_button(this)
+{
+ connect(&_run_stop_button, SIGNAL(clicked()), this, SIGNAL(run_stop()));
+ connect(&_device_selector, SIGNAL(currentIndexChanged (int)),
+ this, SLOT(on_device_selected()));
+
+ _sample_rate_value.setDecimals(0);
+ _sample_rate_value.setSuffix("Hz");
+
+ BOOST_FOREACH(uint64_t l, RecordLengths)
+ {
+ char *const text = sr_si_string_u64(l, " samples");
+ _record_length_selector.addItem(QString(text),
+ qVariantFromValue(l));
+ g_free(text);
+ }
+
+ _run_stop_button.setText("Run");
+
+ addWidget(&_device_selector);
+ addWidget(&_record_length_selector);
+ _sample_rate_list_action = addWidget(&_sample_rate_list);
+ _sample_rate_value_action = addWidget(&_sample_rate_value);
+ addWidget(&_run_stop_button);
+
+ update_device_selector();
+ update_sample_rate_selector();
+}
+
+struct sr_dev_inst* SamplingBar::get_selected_device() const
+{
+ const int index = _device_selector.currentIndex();
+ if(index < 0)
+ return NULL;
+
+ return (sr_dev_inst*)_device_selector.itemData(
+ index).value<void*>();
+}
+
+uint64_t SamplingBar::get_record_length() const
+{
+ const int index = _record_length_selector.currentIndex();
+ if(index < 0)
+ return 0;
+
+ return _record_length_selector.itemData(index).value<uint64_t>();
+}
+
+uint64_t SamplingBar::get_sample_rate() const
+{
+ assert(_sample_rate_value_action);
+ assert(_sample_rate_list_action);
+
+ if(_sample_rate_value_action->isVisible())
+ return (uint64_t)_sample_rate_value.value();
+ else if(_sample_rate_list_action->isVisible())
+ {
+ const int index = _sample_rate_list.currentIndex();
+ if(index < 0)
+ return 0;
+
+ return _sample_rate_list.itemData(index).value<uint64_t>();
+ }
+
+ return 0;
+}
+
+void SamplingBar::update_device_selector()
+{
+ GSList *devices = NULL;
+
+ /* Scan all drivers for all devices. */
+ struct sr_dev_driver **const drivers = sr_driver_list();
+ for (struct sr_dev_driver **driver = drivers; *driver; driver++) {
+ GSList *tmpdevs = sr_driver_scan(*driver, NULL);
+ for (GSList *l = tmpdevs; l; l = l->next)
+ devices = g_slist_append(devices, l->data);
+ g_slist_free(tmpdevs);
+ }
+
+ for (GSList *l = devices; l; l = l->next) {
+ sr_dev_inst *const sdi = (sr_dev_inst*)l->data;
+
+ QString title;
+ if (sdi->vendor && sdi->vendor[0])
+ title += sdi->vendor + QString(" ");
+ if (sdi->model && sdi->model[0])
+ title += sdi->model + QString(" ");
+ if (sdi->version && sdi->version[0])
+ title += sdi->version + QString(" ");
+
+ _device_selector.addItem(title, qVariantFromValue(
+ (void*)sdi));
+ }
+
+ g_slist_free(devices);
+}
+
+void SamplingBar::update_sample_rate_selector()
+{
+ const sr_dev_inst *const sdi = get_selected_device();
+ const struct sr_samplerates *samplerates;
+
+ assert(_sample_rate_value_action);
+ assert(_sample_rate_list_action);
+
+ if (sr_info_get(sdi->driver, SR_DI_SAMPLERATES,
+ (const void **)&samplerates, sdi) != SR_OK)
+ return;
+
+ _sample_rate_list_action->setVisible(false);
+ _sample_rate_value_action->setVisible(false);
+
+ if (samplerates->step)
+ {
+ _sample_rate_value.setRange(
+ samplerates->low, samplerates->high);
+ _sample_rate_value.setSingleStep(samplerates->step);
+ _sample_rate_value_action->setVisible(true);
+ }
+ else
+ {
+ _sample_rate_list.clear();
+ for (const uint64_t *rate = samplerates->list;
+ *rate; rate++)
+ _sample_rate_list.addItem(
+ sr_samplerate_string(*rate),
+ qVariantFromValue(*rate));
+ _sample_rate_list.show();
+ _sample_rate_list_action->setVisible(true);
+ }
+}
+
+void SamplingBar::on_device_selected()
+{
+ update_sample_rate_selector();
+}
+
+} // namespace pv
projects / pulseview.git / blobdiff