channel.cpp

软件无线电的平台

/***************************************************************************
                 channel.cpp  -  Shows one channel
                            -------------------
    begin                :  2003
    authors              :  Linus Gasser
    emails               :  [e-mail]
 ***************************************************************************/

/***************************************************************************
                                 Changes
                                 -------
 date - name - description
 03/01/20 - ineiti - begin

 **************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/


#include <qframe.h>
#include <qlayout.h>
#include <qwidget.h>
#include <qlabel.h>
#include <qbuttongroup.h>
#include <qwt_plot.h>
#include "channel.h"
#include "serverplug.h"


Channel::Channel( QWidget *baseW, ServerPlug *s, int c ) : 
  QWidget( baseW ), server(s), channel(c) {

  filterLen = server->getMaxFilterLength();

  QVBoxLayout *vBox = new QVBoxLayout( this );
  QGridLayout *gGrid = new QGridLayout( vBox, 2, 2 * filterLen + 1 );
  gGrid->setMargin( 2 );
  
  // Insert the QwtPlot
  plot = new QwtPlot( this );
  plot->setTitle( QString( "Channel %1" ).arg( channel ) );
  channel_sig = plot->insertCurve( "Channel", QwtPlot::xBottom, QwtPlot::yRight );
  plot->setAxisScale( QwtPlot::yRight, -1, 1 );
  plot->enableAxis( QwtPlot::yRight, true );
  plot->enableAxis( QwtPlot::yLeft, false );
  plot->setGridYAxis( QwtPlot::yRight );
  plot->setAxisScale( QwtPlot::xBottom, 0, filterLen - 1 );
  plot->setCurveStyle( channel_sig, QwtCurve::Sticks );
  plot->setCurveSymbol( channel_sig, QwtSymbol( QwtSymbol::Ellipse, 
						QBrush( NoBrush ),
						QPen( red, 2 ), QSize( 8, 8 ) ) );
  plot->insertLineMarker( "", QwtPlot::yRight );
  plot->setCurvePen( channel_sig, QPen( red, 2 ) );

  gGrid->addMultiCellWidget( plot, 0, 0, 1, 2 * filterLen );

  // And put in the taps
  QHBoxLayout *hBox = new QHBoxLayout( vBox );
  taps.clear();
  for ( int i=0; i<filterLen; i++ ){
    QString name;
    TapSpinBox *tap = new TapSpinBox( -10, 10, 1, this );
    tap->setValue( (!i) * 10 );
    connect( tap, SIGNAL( valueChanged( int ) ), SLOT( valueChange( int ) ) );
    gGrid->addMultiCellWidget( tap, 1, 1, 2*i, 2*i+1 );
    taps.append( tap );
  }
  valueChange( 0 );
  connect( this, SIGNAL( somethingChanged( int, QValueList<double>* ) ), 
	   server, SLOT( setChannel( int, QValueList<double>* ) ) );
}


Channel::~Channel(){
}


void Channel::valueChange( int i ){
  unsigned int t, len;
  QValueList<double> *val = new QValueList<double>;
  double *x, *y;

  len = taps.count();
  x = (double*)malloc( len * sizeof( double ) );
  y = (double*)malloc( len * sizeof( double ) );
  for ( t=0; t<len; t++ ){
    x[t] = t;
    y[t] = taps.at(t)->value() / 10.;
    val->append( y[t] );
  }
  plot->setCurveData( channel_sig, x, y, len );
  plot->replot();
  
  free( x );
  free( y );

  emit somethingChanged( channel, val );

}


#if 0
  // Initialise the graphical display
  showDisp = new Show( blockList.at( block ), this );
  showDisp->resize( 500, 300 );
  showDisp->show();
  showDisp->Update();
  vBox.addWidget( showDisp );

  // Add the two control-elements
  QHBoxLayout hBox( &vBox, -1, "horizontal" );
  qcbSPCs = new QComboBox( false, this, "SPC" );
  fillSPCs();
  connect( qcbSPCs, SIGNAL( activated(int) ), SLOT( newSPC(int) ) );
  qcbBlocks = new QComboBox( false, this, "Port-#" );
  fillBlocks();
  connect( qcbBlocks, SIGNAL( activated(int) ), SLOT( newBlock(int) ) );
  qcbType = new QComboBox( false, this, "Type:" );
  qcbType->insertStringList( QStringList::split( ",", QString( "Complex,"
							    "Real,"
							    "Imaginary,"
							    "Absolute" ) ) );
  connect( qcbType, SIGNAL( activated(int) ), showDisp, SLOT( ShowSig(int) ) );
  hBox.addWidget( qcbSPCs, 1, 0 );
  hBox.addWidget( qcbBlocks, 1, 0 );
  hBox.addWidget( qcbType, 1, 0 );
#endif