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bussplitter.cpp

/***************************************************************************
 *   Copyright (C) 2005 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 "bussplitter.h"
#include "ecnode.h"
#include "libraryitem.h"
#include "wire.h"

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

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


LibraryItem* BusSplitter::libraryItem()
{
      return new LibraryItem(
            "ec/bus",
            i18n("Bus"),
            i18n("Connections"),
            "bus.png",
            LibraryItem::lit_component,
            BusSplitter::construct );
}


const unsigned MAX_BUS_SIZE = 10000;


BusSplitter::BusSplitter( ICNDocument *icnDocument, bool newItem, const char *id )
      : Component( icnDocument, newItem, id ? id : "Bus" )
{
      m_name = i18n("Bus Splitter");
      m_desc = i18n("Merges several connections into one.");

      m_busSize = 0;    
      init1PinLeft();
      m_pInNode = m_pNNode[0];
      
      createProperty( "size", Variant::Type::Int );
      property("size")->setCaption( i18n("Size") );
      property("size")->setMinValue(1);
      property("size")->setMaxValue(MAX_BUS_SIZE);
      property("size")->setValue(8);
}


BusSplitter::~BusSplitter()
{
}


void BusSplitter::dataChanged()
{
      unsigned busSize = dataInt("size");
      
      if ( busSize < 1 )
            busSize = 1;
      
      else if ( busSize > MAX_BUS_SIZE )
            busSize = MAX_BUS_SIZE;
      
      if ( busSize == m_busSize )
            return;
      
      m_pInNode->setNumPins(busSize);
      
      if ( busSize > m_busSize )
      {
            m_pWires.resize(busSize);
            for ( unsigned i = m_busSize; i < unsigned(busSize); i++ )
            {
                  Pin * pin = createPin( 16, 0, 180, outNodeID(i) )->pin();
                  m_pWires[i] = new Wire( m_pInNode->pin(i), pin );
            }
      }
      else
      {
            for ( unsigned i = busSize; i < unsigned(m_busSize); i++ )
            {
                  removeNode( outNodeID(i) );
                  delete m_pWires[i];
            }
            m_pWires.resize(busSize);
      }
      m_busSize = busSize;
      
      // Position pins
      setSize( 0, -int(m_busSize+1)*8, 8, int(m_busSize+1)*16, true );
      for ( int i = 0; i < int(m_busSize); i++ )
            m_nodeMap[ outNodeID(i) ].y = 16*i - int(m_busSize+1)*8 + 24;
      m_nodeMap["n1"].y = -int(m_busSize+1)*8 + 8;
      
      updateAttachedPositioning();
}


QString BusSplitter::outNodeID( unsigned node ) const
{
      return QString("out_%1").arg(QString::number(node));
}


void BusSplitter::drawShape( QPainter &p )
{
      initPainter(p);
      
//    QPen pen(p.pen());
//    pen.setWidth();
//    p.setPen(pen);
      
      int _x = int(x());
      int _y = int(y());
      
      QRect r = m_sizeRect;
      r.moveBy( _x, _y );
      p.drawRect(r);
      
      deinitPainter(p);
}




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