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eccurrentsource.cpp

/***************************************************************************
 *   Copyright (C) 2003 by David Saxton                                    *
 *   david@bluehaze.org                                                    *
 *                                                                         *
 *   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 "currentsource.h"
#include "eccurrentsource.h"
#include "ecnode.h"
#include "libraryitem.h"
#include "pin.h"

#include <klocale.h>
#include <qpainter.h>

Item* ECCurrentSource::construct( ItemDocument *itemDocument, bool newItem, const char *id )
{
      return new ECCurrentSource( (ICNDocument*)itemDocument, newItem, id );
}

LibraryItem* ECCurrentSource::libraryItem()
{
      return new LibraryItem(
            QString::QString("ec/current_source"),
            i18n("Current Source"),
            i18n("Sources"),
            "current_source.png",
            LibraryItem::lit_component,
            ECCurrentSource::construct );
}

ECCurrentSource::ECCurrentSource( ICNDocument *icnDocument, bool newItem, const char *id )
      : Component( icnDocument, newItem, (id) ? id : "current_source" )
{
      m_name = i18n("Current Source");
      m_desc = i18n("Provides a fixed current source.");
      setSize( -16, -8, 24, 24 );

      init1PinLeft(8);
      init1PinRight(8);
      m_pNNode[0]->pin()->setGroundType( Pin::gt_low );
      
      m_currentSource = createCurrentSource( m_pNNode[0], m_pPNode[0], 0. );
      
      createProperty( "current", Variant::Type::Double );
      property("current")->setCaption( i18n("Current") );
      property("current")->setUnit("A");
      property("current")->setMinValue(-1e12);
      property("current")->setMaxValue(1e12);
      property("current")->setValue(0.02);
      
      addDisplayText("current", QRect( -16, -16, 24, 0 ), "" );
}


ECCurrentSource::~ECCurrentSource()
{
}

void ECCurrentSource::dataChanged()
{
      double current = dataDouble("current");
      m_currentSource->setCurrent(current);
      
      QString display = QString::number( current / getMultiplier(current), 'g', 3 ) + getNumberMag(current) + "A";
      setDisplayText("current", display );
}

void ECCurrentSource::drawShape( QPainter &p )
{
      initPainter(p);
      
      int _x = (int)x()-16;
      int _y = (int)y()-24;
      
      // Top arrow indicating current direction
      p.drawLine( _x+width(), _y+19, _x, _y+19 );
      p.drawLine( _x+width(), _y+19, _x+width()-3, _y+16 );
      p.drawLine( _x+width(), _y+19, _x+width()-3, _y+22 );
      
      // Double circules
      p.drawEllipse( _x, _y+24, 16, 16 );
      p.drawEllipse( _x+8, _y+24, 16, 16 );
      
      deinitPainter(p);
}




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