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 );
}

// TODO: move this to a global "limits" header. 
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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