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lfmsettings.cpp
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lfmsettings.cpp
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#include "lfmsettings.h"
#include <QMessageBox>
LFMSettingsWidget::LFMSettingsWidget(QWidget *parent)
: QWidget(parent)
{
main_layout = new QVBoxLayout(this);
// styling
main_layout->setSpacing(settings_padding_y);
main_layout->setAlignment(Qt::AlignTop);
int spacing = 10;
// EXPLANATION
explanation_label = new QLabel("Explanation of terms", this);
mf_explanation_label = new QLabel("MF - Modulating Frequency", this);
cf_explanation_label = new QLabel("CF - Carrier Frequensy", this);
fd_explanation_label = new QLabel("FD - Frequency Deviation", this);
sf_explanation_label = new QLabel("SF = Sampling Frequency", this);
main_layout->addWidget(explanation_label);
main_layout->addWidget(mf_explanation_label);
main_layout->addWidget(cf_explanation_label);
main_layout->addWidget(fd_explanation_label);
main_layout->addWidget(sf_explanation_label);
// EXPLANATION END
main_layout->addSpacing(spacing);
// CONSTRAINTS
constraint_label = new QLabel("Constraints", this);
constraint_mf_label = new QLabel(QString::number(LFMSettings::mf_min) + " < MF < " + QString::number(LFMSettings::mf_max), this);
constraint_cf_label = new QLabel("1000 > CF > MF", this);
constraint_fd_label = new QLabel(QString::number(LFMSettings::fd_min) + " < FD < MF", this);
constraint_sf_label = new QLabel("(CF + FD) * 100 < SF; SF / MF < " + QString::number(LFMSettings::sf_to_mf_max), this);
main_layout->addWidget(constraint_label);
main_layout->addWidget(constraint_mf_label);
main_layout->addWidget(constraint_cf_label);
main_layout->addWidget(constraint_fd_label);
main_layout->addWidget(constraint_sf_label);
// CONSTRAINTS END
main_layout->addSpacing(spacing);
// INPUT
input_layout = new QHBoxLayout();
// labels
input_labels_layout = new QVBoxLayout();
settings_label = new QLabel("Settings", this);
mf_label = new QLabel("MF, Hz", this);
cf_label = new QLabel("CF, Hz", this);
fd_label = new QLabel("FD, Hz", this);
sf_label = new QLabel("SF, Hz", this);
main_layout->addWidget(settings_label);
input_labels_layout->addWidget(mf_label);
input_labels_layout->addWidget(cf_label);
input_labels_layout->addWidget(fd_label);
input_labels_layout->addWidget(sf_label);
// line edits
input_edits_layout = new QVBoxLayout();
mf_line_edit = new QLineEdit("1", this);
cf_line_edit = new QLineEdit("100", this);
fd_line_edit = new QLineEdit("0", this);
sf_line_edit = new QLineEdit("100000", this);
mf_validator = new QDoubleValidator(LFMSettings::mf_min, LFMSettings::mf_max, LFMSettings::precision, this);
cf_validator = new QIntValidator(LFMSettings::cf_min, LFMSettings::cf_max, this);
fd_validator = new QIntValidator(LFMSettings::fd_min, LFMSettings::fd_max, this);
sf_validator = new QIntValidator(LFMSettings::sf_min, LFMSettings::sf_max, this);
QLocale locale("en_US");
mf_validator->setLocale(locale);
cf_validator->setLocale(locale);
fd_validator->setLocale(locale);
sf_validator->setLocale(locale);
mf_line_edit->setValidator(mf_validator);
cf_line_edit->setValidator(cf_validator);
fd_line_edit->setValidator(fd_validator);
sf_line_edit->setValidator(sf_validator);
input_edits_layout->addWidget(mf_line_edit);
input_edits_layout->addWidget(cf_line_edit);
input_edits_layout->addWidget(fd_line_edit);
input_edits_layout->addWidget(sf_line_edit);
input_layout->addLayout(input_labels_layout);
input_layout->addLayout(input_edits_layout);
main_layout->addLayout(input_layout);
// INPUT END
main_layout->addSpacing(spacing);
// CURRENT DATA
last_data_label = new QLabel("Last input");
last_mf_label =new QLabel("Last MF = 0.0");
last_cf_label = new QLabel("Last CF = 0.0");
last_fd_label = new QLabel("Last FD = 0.0");
last_sf_label = new QLabel("Last SF = 0.0");
main_layout->addWidget(last_data_label);
main_layout->addWidget(last_mf_label);
main_layout->addWidget(last_cf_label);
main_layout->addWidget(last_fd_label);
main_layout->addWidget(last_sf_label);
// CURRENT DATA END
main_layout->addWidget(&reset_button);
// signals
connect(&reset_button, &QPushButton::clicked, this, &LFMSettingsWidget::process_reset);
}
LFMSettings LFMSettingsWidget::check_settings(bool& ok)
{
ok = false;
LFMSettings settings;
// MF checks
settings.mf = mf_line_edit->text().toDouble();
if (settings.mf == 0 || settings.mf < LFMSettings::mf_min || settings.mf > LFMSettings::mf_max)
{
notify_input_invalid("Modulating Frequency is invalid. Check constraints for better info.", "!MF INVALID INPUT!");
return settings;
}
// CF checks
settings.cf = cf_line_edit->text().toDouble();
if (settings.cf / settings.mf < settings.cf_to_mf_min)
{
notify_input_invalid("Carrier Frequency should be " + QString::number(settings.cf_to_mf_min) +
" times higher than Modulating one", "!CF INVALID INPUT!");
return settings;
}
else if (settings.cf / settings.mf > settings.cf_to_mf_max) // threshhold
{
notify_input_invalid("With current Carrying Frequency representation will become unreadeble. Bearable frequency: " +
QString::number(settings.mf * settings.cf_to_mf_max), "!CF INVALID INPUT!");
return settings;
}
// FD checks
settings.fd = fd_line_edit->text().toDouble();
if (settings.fd >= settings.cf)
{
notify_input_invalid("Frequency Deviation must be less than Carrier Frequency!", "!FD INVALID INPUT!");
return settings;
}
// SF checks
settings.sf = sf_line_edit->text().toDouble();
if (settings.sf < (settings.fd + settings.cf) * LFMSettings::sf_to_cf_x_fd_min)
{
notify_input_invalid("Sampling Frequency should at least (CF + FD) * " +
QString::number(settings.sf_to_cf_x_fd_min) +
" = " + QString::number((settings.cf + settings.fd) * settings.sf_to_cf_x_fd_min), "!SF INVALID INPUT!");
return settings;
}
else if (settings.sf / settings.mf > settings.sf_to_mf_max)
{
notify_input_invalid("Sampling Frequency / Modulating Frequency upper bound is " + QString::number(settings.sf_to_mf_max), "!SF INVALID INPUT!");
return settings;
}
ok = true;
return settings;
}
void LFMSettingsWidget::notify_input_invalid(QString msg_text, QString title)
{
QMessageBox* msg = new QMessageBox();
connect(msg, &QMessageBox::buttonClicked, msg, &QObject::deleteLater);
msg->setWindowTitle(title);
msg->setText(msg_text);
msg->exec();
}
void LFMSettingsWidget::process_reset()
{
bool valid = false;
LFMSettings new_settings = check_settings(valid);
if (!valid)
return;
// updating the "last data" section
last_mf_label->setText("Last MF = " + mf_line_edit->text());
last_cf_label->setText("Last CF = " + cf_line_edit->text());
last_fd_label->setText("Last FD = " + fd_line_edit->text());
last_sf_label->setText("Last SF = " + sf_line_edit->text());
//sending new settings
emit new_data_sent(new_settings);
}