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/***************************************************************************
* Copyright (C) 2005 by Fredy Yanardi *
* *
* 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 "libraryitem.h"
#include "logic.h"
#include "magnitudecomparator.h"
#include "variant.h"
#include <cmath>
#include <tdelocale.h>
Item* MagnitudeComparator::construct( ItemDocument *itemDocument, bool newItem, const char *id )
{
return new MagnitudeComparator( (ICNDocument*)itemDocument, newItem, id );
}
LibraryItem* MagnitudeComparator::libraryItem()
{
return new LibraryItem(
TQString("ec/magnitudecomparator"),
i18n("Magnitude Comparator"),
i18n("Integrated Circuits"),
"ic1.png",
LibraryItem::lit_component,
MagnitudeComparator::construct
);
}
MagnitudeComparator::MagnitudeComparator( ICNDocument *icnDocument, bool newItem, const char *id )
: Component( icnDocument, newItem, id ? id : "magnitudecomparator" )
{
m_name = i18n("Magnitude Comparator");
// m_desc = i18n("Compares to two binary number and generates input to indicate which binary number has greater magnitude. It has 3 cascading inputs: I0 for I<SUB>A > B</SUB>, I1 for I<SUB>A < B</SUB>, and I2 for I<SUB>A = B</SUB> and 3 outputs: O0 for O<SUB>A > B</SUB>, O1 for O<SUB>A < B</SUB>, and O2 for O<SUB>A = B</SUB>");
m_desc = i18n("Compares two binary numbers and generates output to indicate which binary number has the greater magnitude. It has 3 cascading inputs:"
"<ul><li>I: A > B</li>"
"<li>I: A < B</li>"
"<li>I: A = B</li></ul>"
"and 3 outputs:"
"<ul><li>O: A > B</li>"
"<li>O: A < B</li>"
"<li>O: A = B</li></ul>");
createProperty( "numInput", Variant::Type::Int );
property("numInput")->setCaption( i18n("Number Inputs") );
property("numInput")->setMinValue(1);
property("numInput")->setMaxValue(8);
property("numInput")->setValue(4);
m_oldABLogicCount = 0;
cascadingInputs = 3;
outputs = 3;
firstTime = true;
}
MagnitudeComparator::~MagnitudeComparator()
{
}
void MagnitudeComparator::dataChanged()
{
initPins();
}
void MagnitudeComparator::inStateChanged()
{
int i;
for ( i = 0; i < 3; i++ )
m_output[i]->setHigh(false);
// for ( i = dataInt("numInput")-1; i >= 0; i-- ) {
for ( i = m_oldABLogicCount-1; i >= 0; i-- ) {
if (m_aLogic[i]->isHigh() && !m_bLogic[i]->isHigh())
{
m_output[0]->setHigh(true);
return;
}
else if ( !m_aLogic[i]->isHigh() && m_bLogic[i]->isHigh() ) {
m_output[1]->setHigh(true);
return;
}
}
if ( m_cLogic[2]->isHigh() )
m_output[2]->setHigh(true);
else if ( m_cLogic[0]->isHigh() )
if ( !m_cLogic[1]->isHigh() )
m_output[0]->setHigh(true);
else
;
else if ( m_cLogic[1]->isHigh() )
m_output[1]->setHigh(true);
else {
m_output[0]->setHigh(true);
m_output[1]->setHigh(true);
}
}
void MagnitudeComparator::initPins()
{
const double numInputs = dataInt("numInput");
int newABLogicCount = (int)numInputs;
if ( newABLogicCount == m_oldABLogicCount )
return;
TQStringList leftPins;
int space = 3 - newABLogicCount;
for ( int i = 0; i < space; i++ )
leftPins << "";
for ( int i = 0; i < newABLogicCount; i++ )
leftPins << TQString("A%1").arg( TQString::number(i) );
for ( int i = 0; i < newABLogicCount; i++ )
leftPins << TQString("B%1").arg( TQString::number(i) );
for ( int i = 0; i < space; i++ )
leftPins << "";
TQStringList rightPins;
space = -space;
for ( int i = 0; i < space; i++ )
rightPins << "";
TQString inNames[] = { "I: A>B", "I: A<B", "I: A=B" };
rightPins << inNames[2] << inNames[1] << inNames[0];
TQString outNames[] = { "O: A>B", "O: A<B", "O: A=B" };
rightPins << outNames[2] << outNames[1] << outNames[0];
for ( int i = 0; i < space; i++ )
rightPins << "";
TQStringList pins = leftPins + rightPins;
initDIPSymbol( pins, 88 );
initDIP(pins);
ECNode *node;
if (firstTime) {
m_cLogic.resize(3);
for ( int i = 0; i < cascadingInputs; i++ )
{
node = ecNodeWithID( inNames[i] );
m_cLogic.insert( i, createLogicIn(node) );
m_cLogic[i]->setCallback( this, (CallbackPtr)(&MagnitudeComparator::inStateChanged));
}
m_output.resize(3);
for ( int i = 0; i < outputs; i++ )
{
node = ecNodeWithID( outNames[i] );
m_output.insert( i, createLogicOut(node,false) );
}
firstTime = false;
}
if ( newABLogicCount > m_oldABLogicCount )
{
m_aLogic.resize(newABLogicCount);
for ( int i=m_oldABLogicCount; i<newABLogicCount; ++i )
{
node = ecNodeWithID("A"+TQString::number(i));
m_aLogic.insert( i, createLogicIn(node) );
m_aLogic[i]->setCallback( this, (CallbackPtr)(&MagnitudeComparator::inStateChanged) );
}
m_bLogic.resize(newABLogicCount);
for ( int i=m_oldABLogicCount; i<newABLogicCount; ++i )
{
node = ecNodeWithID("B"+TQString::number(i));
m_bLogic.insert( i, createLogicIn(node) );
m_bLogic[i]->setCallback( this, (CallbackPtr)(&MagnitudeComparator::inStateChanged) );
}
}
else
{
for ( int i=newABLogicCount; i<m_oldABLogicCount; ++i )
{
TQString id = "A"+TQString::number(i);
removeDisplayText(id);
removeElement( m_aLogic[i], false );
removeNode(id);
}
m_aLogic.resize(newABLogicCount);
for ( int i=newABLogicCount; i<m_oldABLogicCount; ++i )
{
TQString id = "B"+TQString::number(i);
removeDisplayText(id);
removeElement( m_bLogic[i], false );
removeNode(id);
}
m_bLogic.resize(newABLogicCount);
}
m_oldABLogicCount = newABLogicCount;
inStateChanged();
}
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