Added KDE3 version of ktechlab

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/ktechlab@1095338 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 176 insertions, 0 deletions

diff --git a/src/electronics/components/multiplexer.cpp b/src/electronics/components/multiplexer.cpp
new file mode 100644
index 0000000..e421fee
--- /dev/null
+++ b/src/electronics/components/multiplexer.cpp
@@ -0,0 +1,176 @@
+/***************************************************************************
+ *   Copyright (C) 2004-2005 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 "multiplexer.h"
+
+#include "logic.h"
+#include "libraryitem.h"
+
+#include <kiconloader.h>
+#include <klocale.h>
+
+#include <cmath>
+
+Item* Multiplexer::construct( ItemDocument *itemDocument, bool newItem, const char *id )
+{
+	return new Multiplexer( (ICNDocument*)itemDocument, newItem, id );
+}
+
+LibraryItem* Multiplexer::libraryItem()
+{
+	return new LibraryItem(
+		QString("ec/multiplexer"),
+		i18n("Multiplexer"),
+		i18n("Integrated Circuits"),
+		"ic1.png",
+		LibraryItem::lit_component,
+		Multiplexer::construct
+			);
+}
+
+Multiplexer::Multiplexer( ICNDocument *icnDocument, bool newItem, const char *id )
+	: Component( icnDocument, newItem, (id) ? id : "multiplexer" )
+{
+	m_name = i18n("Multiplexer");
+	m_desc = i18n("Combines the input data stream into one single stream. The value of the input selected by the \"A\" inputs is passed to the output.");
+	
+	m_output = 0l;
+	
+	createProperty( "addressSize", Variant::Type::Int );
+	property("addressSize")->setCaption( i18n("Address Size") );
+	property("addressSize")->setMinValue(1);
+	property("addressSize")->setMaxValue(8);
+	property("addressSize")->setValue(1);
+	
+	// For backwards compatibility
+	createProperty( "numInput", Variant::Type::Int );
+	property("numInput")->setMinValue(-1);
+	property("numInput")->setValue(-1);
+	property("numInput")->setHidden(true);
+}
+
+Multiplexer::~Multiplexer()
+{
+}
+
+
+void Multiplexer::dataChanged()
+{
+	if ( hasProperty("numInput") && dataInt("numInput") != -1 )
+	{
+		int addressSize = int( std::ceil( std::log( (double)dataInt("numInput") ) / std::log(2.0) ) );
+		property("numInput")->setValue(-1);
+		
+		if ( addressSize < 1 )
+			addressSize = 1;
+		else if ( addressSize > 8 )
+			addressSize = 8;
+		
+		// This function will get called again when we set the value of numInput
+		property("addressSize")->setValue(addressSize);
+		return;
+	}
+	
+	if ( hasProperty("numInput") )
+	{
+		m_variantData["numInput"]->deleteLater();
+		m_variantData.remove("numInput");
+	}
+	
+	initPins( unsigned(dataInt("addressSize")) );
+}
+
+
+void Multiplexer::inStateChanged( bool /*state*/ )
+{
+	unsigned long long pos = 0;
+	for ( unsigned i = 0; i < m_aLogic.size(); ++i )
+	{
+		if ( m_aLogic[i]->isHigh() )
+			pos += 1 << i;
+	}
+	m_output->setHigh( m_xLogic[pos]->isHigh() );
+}
+
+
+void Multiplexer::initPins( unsigned newAddressSize )
+{
+	unsigned oldAddressSize = m_aLogic.size();
+	unsigned long long oldXLogicCount = m_xLogic.size();
+	unsigned long long newXLogicCount = 1 << newAddressSize;
+	
+	if ( newXLogicCount == oldXLogicCount )
+		return;
+	
+	QStringList pins;
+	
+	const int length = newAddressSize + newXLogicCount;
+	
+	for ( unsigned i=0; i<newAddressSize; ++i )
+		pins += "A"+QString::number(i);
+	for ( unsigned i=0; i<newXLogicCount; ++i )
+		pins += "X"+QString::number(i);
+	for ( int i=0; i<(length-(length%2))/2; ++i )
+		pins += "";
+	pins += "X";
+	for ( int i=0; i<((length+(length%2))/2)-1; ++i )
+		pins += "";
+	
+	initDIPSymbol( pins, 64 );
+	initDIP(pins);
+	
+	ECNode *node;
+	
+	if (!m_output)
+	{
+		node =  ecNodeWithID("X");
+		m_output = createLogicOut( node, false );
+	}
+	
+	if ( newXLogicCount > oldXLogicCount )
+	{
+		m_xLogic.resize(newXLogicCount);
+		for ( unsigned i=oldXLogicCount; i<newXLogicCount; ++i )
+		{
+			node = ecNodeWithID("X"+QString::number(i));
+			m_xLogic.insert( i, createLogicIn(node) );
+			m_xLogic[i]->setCallback( this, (CallbackPtr)(&Multiplexer::inStateChanged) );
+		}
+		
+		m_aLogic.resize(newAddressSize);
+		for ( unsigned i=oldAddressSize; i<newAddressSize; ++i )
+		{
+			node = ecNodeWithID("A"+QString::number(i));
+			m_aLogic.insert( i, createLogicIn(node) );
+			m_aLogic[i]->setCallback( this, (CallbackPtr)(&Multiplexer::inStateChanged) );
+		}
+	}
+	else
+	{
+		for ( unsigned i = newXLogicCount; i < oldXLogicCount; ++i )
+		{
+			QString id = "X"+QString::number(i);
+			removeDisplayText(id);
+			removeElement( m_xLogic[i], false );
+			removeNode(id);
+		}
+		m_xLogic.resize(newXLogicCount);
+		
+		for ( unsigned i = newAddressSize; i < oldAddressSize; ++i )
+		{
+			QString id = "A"+QString::number(i);
+			removeDisplayText(id);
+			removeElement( m_aLogic[i], false );
+			removeNode(id);
+		}
+		m_aLogic.resize(newAddressSize);
+	}
+}
+