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293
DSLogic-gui/pv/toolbars/samplingbar.cpp
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293
DSLogic-gui/pv/toolbars/samplingbar.cpp
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/*
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* This file is part of the DSLogic-gui project.
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* DSLogic-gui is based on PulseView.
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*
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* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
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* Copyright (C) 2013 DreamSourceLab <dreamsourcelab@dreamsourcelab.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <extdef.h>
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#include <assert.h>
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#include <boost/foreach.hpp>
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#include <QAction>
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#include <QDebug>
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#include <QLabel>
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#include "samplingbar.h"
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using namespace std;
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namespace pv {
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namespace toolbars {
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const uint64_t SamplingBar::RecordLengths[19] = {
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1000,
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2000,
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4000,
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8000,
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10000,
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20000,
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40000,
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80000,
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100000,
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200000,
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400000,
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800000,
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1000000,
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2000000,
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4000000,
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8000000,
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10000000,
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20000000,
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40000000,
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};
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const uint64_t SamplingBar::DefaultRecordLength = 1000000;
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const uint64_t SamplingBar::DSLogic_RecordLengths[15] = {
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1000,
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2000,
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5000,
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10000,
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20000,
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50000,
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100000,
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200000,
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500000,
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1000000,
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2000000,
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5000000,
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10000000,
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16000000,
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100000000,
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};
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const uint64_t SamplingBar::DSLogic_DefaultRecordLength = 16000000;
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SamplingBar::SamplingBar(QWidget *parent) :
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QToolBar("Sampling Bar", parent),
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_record_length_selector(this),
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_sample_rate_list(this),
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_icon_stop(":/icons/stop.png"),
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_icon_start(":/icons/start.png"),
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_run_stop_button(this)
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{
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setMovable(false);
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connect(&_run_stop_button, SIGNAL(clicked()),
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this, SLOT(on_run_stop()));
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// for (size_t i = 0; i < countof(RecordLengths); i++)
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// {
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// const uint64_t &l = RecordLengths[i];
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// char *const text = ds_si_string_u64(l, " samples");
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// _record_length_selector.addItem(QString(text),
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// qVariantFromValue(l));
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// g_free(text);
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// if (l == DefaultRecordLength)
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// _record_length_selector.setCurrentIndex(i);
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// }
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set_sampling(false);
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//_run_stop_button.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
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_run_stop_button.setObjectName(tr("run_stop_button"));
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addWidget(new QLabel(tr(" ")));
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addWidget(&_record_length_selector);
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addWidget(new QLabel(tr(" @ ")));
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_sample_rate_list_action = addWidget(&_sample_rate_list);
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addWidget(&_run_stop_button);
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connect(&_sample_rate_list, SIGNAL(currentIndexChanged(int)),
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this, SLOT(on_sample_rate_changed()));
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}
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void SamplingBar::set_device(struct sr_dev_inst *sdi)
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{
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assert(sdi);
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_sdi = sdi;
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if (strcmp(sdi->driver->name, "DSLogic") == 0) {
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_record_length_selector.clear();
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for (size_t i = 0; i < countof(DSLogic_RecordLengths); i++)
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{
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const uint64_t &l = DSLogic_RecordLengths[i];
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char *const text = sr_si_string_u64(l, " samples");
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_record_length_selector.addItem(QString(text),
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qVariantFromValue(l));
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g_free(text);
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if (l == DSLogic_DefaultRecordLength)
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_record_length_selector.setCurrentIndex(i);
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}
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} else {
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for (size_t i = 0; i < countof(RecordLengths); i++)
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{
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const uint64_t &l = RecordLengths[i];
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char *const text = sr_si_string_u64(l, " samples");
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_record_length_selector.addItem(QString(text),
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qVariantFromValue(l));
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g_free(text);
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if (l == DefaultRecordLength)
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_record_length_selector.setCurrentIndex(i);
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}
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}
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}
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uint64_t SamplingBar::get_record_length() const
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{
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const int index = _record_length_selector.currentIndex();
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if (index < 0)
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return 0;
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return _record_length_selector.itemData(index).value<uint64_t>();
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}
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void SamplingBar::set_sampling(bool sampling)
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{
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_run_stop_button.setIcon(sampling ? _icon_stop : _icon_start);
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//_run_stop_button.setText(sampling ? " Stop" : "Start");
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}
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void SamplingBar::update_sample_rate_selector()
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{
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GVariant *gvar_dict, *gvar_list;
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const uint64_t *elements = NULL;
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gsize num_elements;
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QAction *selector_action = NULL;
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assert(_sample_rate_list_action);
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if (!_sdi)
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return;
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if (sr_config_list(_sdi->driver, SR_CONF_SAMPLERATE,
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&gvar_dict, _sdi) != SR_OK)
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return;
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_sample_rate_list_action->setVisible(false);
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if ((gvar_list = g_variant_lookup_value(gvar_dict,
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"samplerates", G_VARIANT_TYPE("at"))))
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{
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elements = (const uint64_t *)g_variant_get_fixed_array(
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gvar_list, &num_elements, sizeof(uint64_t));
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_sample_rate_list.clear();
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for (unsigned int i = 0; i < num_elements; i++)
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{
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char *const s = sr_samplerate_string(elements[i]);
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_sample_rate_list.addItem(QString(s),
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qVariantFromValue(elements[i]));
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g_free(s);
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}
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_sample_rate_list.show();
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g_variant_unref(gvar_list);
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selector_action = _sample_rate_list_action;
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}
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g_variant_unref(gvar_dict);
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_sample_rate_list_action->setVisible(true);
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update_sample_rate_selector_value();
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}
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void SamplingBar::update_sample_rate_selector_value()
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{
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GVariant *gvar;
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uint64_t samplerate;
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assert(_sdi);
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if (sr_config_get(_sdi->driver, SR_CONF_SAMPLERATE,
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&gvar, _sdi) != SR_OK) {
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qDebug() <<
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"WARNING: Failed to get value of sample rate";
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return;
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}
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samplerate = g_variant_get_uint64(gvar);
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g_variant_unref(gvar);
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assert(_sample_rate_list_action);
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if (_sample_rate_list_action->isVisible())
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{
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for (int i = 0; i < _sample_rate_list.count(); i++)
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if (samplerate == _sample_rate_list.itemData(
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i).value<uint64_t>())
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_sample_rate_list.setCurrentIndex(i);
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}
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}
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void SamplingBar::commit_sample_rate()
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{
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uint64_t sample_rate = 0;
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assert(_sdi);
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assert(_sample_rate_list_action);
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if (_sample_rate_list_action->isVisible())
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{
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const int index = _sample_rate_list.currentIndex();
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if (index >= 0)
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sample_rate = _sample_rate_list.itemData(
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index).value<uint64_t>();
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}
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if (sample_rate == 0)
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return;
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// Set the samplerate
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if (sr_config_set(_sdi, SR_CONF_SAMPLERATE,
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g_variant_new_uint64(sample_rate)) != SR_OK) {
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qDebug() << "Failed to configure samplerate.";
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return;
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}
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}
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void SamplingBar::on_sample_rate_changed()
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{
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commit_sample_rate();
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}
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void SamplingBar::on_run_stop()
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{
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commit_sample_rate();
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run_stop();
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}
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void SamplingBar::enable_toggle(bool enable)
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{
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_record_length_selector.setDisabled(!enable);
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_sample_rate_list.setDisabled(!enable);
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}
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void SamplingBar::enable_run_stop(bool enable)
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{
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_run_stop_button.setDisabled(!enable);
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}
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} // namespace toolbars
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} // namespace pv
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