pv/views/trace/mathsignal.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2020 Soeren Apel <soeren@apelpie.net>
   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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <extdef.h>
  21
  22 #include <QComboBox>
  23 #include <QDebug>
  24 #include <QFormLayout>
  25 #include <QGridLayout>
  26 #include <QLineEdit>
  27 #include <QString>
  28
  29 #include "mathsignal.hpp"
  30
  31 #include "pv/data/signalbase.hpp"
  32
  33 using pv::data::SignalBase;
  34
  35 namespace pv {
  36 namespace views {
  37 namespace trace {
  38
  39 #define MATHSIGNAL_INPUT_TIMEOUT (2000)
  40
  41 MathSignal::MathSignal(
  42         pv::Session &session,
  43         shared_ptr<data::SignalBase> base) :
  44         AnalogSignal(session, base),
  45         math_signal_(dynamic_pointer_cast<pv::data::MathSignal>(base))
  46 {
  47         delayed_expr_updater_.setSingleShot(true);
  48         delayed_expr_updater_.setInterval(MATHSIGNAL_INPUT_TIMEOUT);
  49         connect(&delayed_expr_updater_, &QTimer::timeout,
  50                 this, [this]() { math_signal_->set_expression(expression_edit_->text()); });
  51 }
  52
  53 void MathSignal::populate_popup_form(QWidget *parent, QFormLayout *form)
  54 {
  55         AnalogSignal::populate_popup_form(parent, form);
  56
  57         expression_edit_ = new QLineEdit();
  58         expression_edit_->setText(math_signal_->get_expression());
  59         connect(expression_edit_, SIGNAL(textEdited(QString)),
  60                 this, SLOT(on_expression_changed(QString)));
  61         form->addRow(tr("Expression"), expression_edit_);
  62
  63         sample_count_cb_ = new QComboBox();
  64         sample_count_cb_->setEditable(true);
  65         sample_count_cb_->addItem(tr("same as session"));
  66         sample_count_cb_->addItem(tr("100"));
  67         sample_count_cb_->addItem(tr("10000"));
  68         sample_count_cb_->addItem(tr("1000000"));
  69         connect(sample_count_cb_, SIGNAL(editTextChanged(QString)),
  70                 this, SLOT(on_sample_count_changed(QString)));
  71         form->addRow(tr("Number of Samples"), sample_count_cb_);
  72
  73         sample_rate_cb_ = new QComboBox();
  74         sample_rate_cb_->setEditable(true);
  75         sample_rate_cb_->addItem(tr("same as session"));
  76         sample_rate_cb_->addItem(tr("100"));
  77         sample_rate_cb_->addItem(tr("10000"));
  78         sample_rate_cb_->addItem(tr("1000000"));
  79         form->addRow(tr("Sample rate"), sample_rate_cb_);
  80 }
  81
  82 void MathSignal::on_expression_changed(const QString &text)
  83 {
  84         (void)text;
  85
  86         // Restart update timer
  87         delayed_expr_updater_.start();
  88 }
  89
  90 void MathSignal::on_sample_count_changed(const QString &text)
  91 {
  92         (void)text;
  93 }
  94
  95 } // namespace trace
  96 } // namespace views
  97 } // namespace pv