Add files from zip

2023-10-31 09:22:42 +01:00
parent 6bacdc5f6d
commit 4dae68036f
2788 changed files with 492537 additions and 0 deletions
--- a/examples/radio/TunerBox.cpp
+++ b/examples/radio/TunerBox.cpp
@@ -0,0 +1,121 @@
+/******************************************************************************
+ * Qwt Widget Library
+ * Copyright (C) 1997   Josef Wilgen
+ * Copyright (C) 2002   Uwe Rathmann
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the Qwt License, Version 1.0
+ *****************************************************************************/
+
+#include "TunerBox.h"
+
+#include <QwtWheel>
+#include <QwtSlider>
+#include <QwtThermo>
+#include <QwtMath>
+
+#include <QLayout>
+#include <QLabel>
+
+class TuningThermo : public QWidget
+{
+  public:
+    TuningThermo( QWidget* parent )
+        : QWidget( parent )
+    {
+        m_thermo = new QwtThermo( this );
+        m_thermo->setOrientation( Qt::Horizontal );
+        m_thermo->setScalePosition( QwtThermo::NoScale );
+        m_thermo->setScale( 0.0, 1.0 );
+        m_thermo->setFillBrush( Qt::green );
+
+        QLabel* label = new QLabel( "Tuning", this );
+        label->setAlignment( Qt::AlignCenter );
+
+        QVBoxLayout* layout = new QVBoxLayout( this );
+        layout->setContentsMargins( QMargins() );
+        layout->addWidget( m_thermo );
+        layout->addWidget( label );
+
+        setFixedWidth( 3 * label->sizeHint().width() );
+    }
+
+    void setValue( double value )
+    {
+        m_thermo->setValue( value );
+    }
+
+  private:
+    QwtThermo* m_thermo;
+};
+
+TunerBox::TunerBox( QWidget* parent ):
+    QFrame( parent )
+{
+    const double freqMin = 87.5;
+    const double freqMax = 108;
+
+    m_sliderFrequency = new QwtSlider( this );
+    m_sliderFrequency->setOrientation( Qt::Horizontal );
+    m_sliderFrequency->setScalePosition( QwtSlider::TrailingScale );
+    m_sliderFrequency->setScale( freqMin, freqMax );
+    m_sliderFrequency->setTotalSteps(
+        qRound( ( freqMax - freqMin ) / 0.01 ) );
+    m_sliderFrequency->setSingleSteps( 1 );
+    m_sliderFrequency->setPageSteps( 10 );
+    m_sliderFrequency->setScaleMaxMinor( 5 );
+    m_sliderFrequency->setScaleMaxMajor( 12 );
+    m_sliderFrequency->setHandleSize( QSize( 80, 20 ) );
+    m_sliderFrequency->setBorderWidth( 1 );
+
+    m_thermoTune = new TuningThermo( this );
+
+    m_wheelFrequency = new QwtWheel( this );
+    m_wheelFrequency->setMass( 0.5 );
+    m_wheelFrequency->setRange( 87.5, 108 );
+    m_wheelFrequency->setSingleStep( 0.01 );
+    m_wheelFrequency->setPageStepCount( 10 );
+    m_wheelFrequency->setTotalAngle( 3600.0 );
+    m_wheelFrequency->setFixedHeight( 30 );
+
+
+    connect( m_wheelFrequency, SIGNAL(valueChanged(double)), SLOT(adjustFreq(double)) );
+    connect( m_sliderFrequency, SIGNAL(valueChanged(double)), SLOT(adjustFreq(double)) );
+
+    QVBoxLayout* mainLayout = new QVBoxLayout( this );
+    mainLayout->setContentsMargins( 10, 10, 10, 10 );
+    mainLayout->setSpacing( 5 );
+    mainLayout->addWidget( m_sliderFrequency );
+
+    QHBoxLayout* hLayout = new QHBoxLayout;
+    hLayout->setContentsMargins( QMargins() );
+    hLayout->addWidget( m_thermoTune, 0 );
+    hLayout->addStretch( 5 );
+    hLayout->addWidget( m_wheelFrequency, 2 );
+
+    mainLayout->addLayout( hLayout );
+}
+
+void TunerBox::adjustFreq( double frq )
+{
+    const double factor = 13.0 / ( 108 - 87.5 );
+
+    const double x = ( frq - 87.5 ) * factor;
+    const double field = qwtSqr( std::sin( x ) * std::cos( 4.0 * x ) );
+
+    m_thermoTune->setValue( field );
+
+    if ( m_sliderFrequency->value() != frq )
+        m_sliderFrequency->setValue( frq );
+    if ( m_wheelFrequency->value() != frq )
+        m_wheelFrequency->setValue( frq );
+
+    Q_EMIT fieldChanged( field );
+}
+
+void TunerBox::setFreq( double frq )
+{
+    m_wheelFrequency->setValue( frq );
+}
+
+#include "moc_TunerBox.cpp"