1 files changed, 175 insertions, 0 deletions
diff --git a/src/electronics/pin.cpp b/src/electronics/pin.cpp
new file mode 100644
index 0000000..56848fc
--- /dev/null
+++ b/src/electronics/pin.cpp
@@ -0,0 +1,175 @@
+/***************************************************************************
+ *   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 "pin.h"
+
+#include <assert.h>
+#include <kdebug.h>
+
+Pin::Pin( ECNode * parent )
+{
+	assert(parent);
+	m_pECNode = parent;
+	m_voltage = 0.;
+	m_current = 0.;
+	m_eqId = -2;
+	m_bCurrentIsKnown = false;
+	m_groundType = Pin::gt_never;
+}
+
+
+Pin::~Pin()
+{
+	WireList::iterator end = m_inputWireList.end();
+	for ( WireList::iterator it = m_inputWireList.begin(); it != end; ++it )
+		delete *it;
+	
+	end = m_outputWireList.end();
+	for ( WireList::iterator it = m_outputWireList.begin(); it != end; ++it )
+		delete *it;
+}
+
+
+PinList Pin::localConnectedPins( ) const
+{
+// 	kdDebug() << k_funcinfo << "Input wires: "<<m_inputWireList.size()<<"   Output wires: " << m_outputWireList.size() << "   Switch connected: " << m_switchConnectedPins.size() << endl;
+	
+	PinList pins;
+	
+	WireList::const_iterator end = m_inputWireList.end();
+	for ( WireList::const_iterator it = m_inputWireList.begin(); it != end; ++it )
+	{
+		if (*it)
+			pins << (*it)->startPin();
+	}
+	
+	end = m_outputWireList.end();
+	for ( WireList::const_iterator it = m_outputWireList.begin(); it != end; ++it )
+	{
+		if (*it)
+			pins << (*it)->endPin();
+	}
+	
+	pins += m_switchConnectedPins;
+	
+	return pins;
+}
+
+
+void Pin::setSwitchConnected( Pin * pin, bool isConnected )
+{
+	if (!pin)
+		return;
+	
+	if (isConnected)
+	{
+		if ( !m_switchConnectedPins.contains(pin) )
+			m_switchConnectedPins.append(pin);
+	}
+	else
+		m_switchConnectedPins.remove(pin);
+}
+
+
+void Pin::addCircuitDependentPin( Pin * pin )
+{
+	if ( pin && !m_circuitDependentPins.contains(pin) )
+		m_circuitDependentPins.append(pin);
+}
+
+
+void Pin::addGroundDependentPin( Pin * pin )
+{
+	if ( pin && !m_groundDependentPins.contains(pin) )
+		m_groundDependentPins.append(pin);
+}
+
+
+void Pin::removeDependentPins()
+{
+	m_circuitDependentPins.clear();
+	m_groundDependentPins.clear();
+}
+
+
+void Pin::addElement( Element * e )
+{
+	if ( !e || m_elementList.contains(e) )
+		return;
+	m_elementList.append(e);
+}
+
+
+void Pin::removeElement( Element * e )
+{
+	m_elementList.remove(e);
+}
+
+
+void Pin::addSwitch( Switch * sw )
+{
+	if ( !sw || m_switchList.contains( sw ) )
+		return;
+	m_switchList << sw;
+}
+
+
+void Pin::removeSwitch( Switch * sw )
+{
+	m_switchList.remove( sw );
+}
+
+
+void Pin::addInputWire( Wire * wire )
+{
+	if ( wire && !m_inputWireList.contains(wire) )
+		m_inputWireList << wire;
+}
+
+
+void Pin::addOutputWire( Wire * wire )
+{
+	if ( wire && !m_outputWireList.contains(wire) )
+		m_outputWireList << wire;
+}
+
+
+bool Pin::calculateCurrentFromWires()
+{
+	m_inputWireList.remove( (Wire*)0l );
+	m_outputWireList.remove( (Wire*)0l );
+	
+	const WireList inputs = m_inputWireList;
+	const WireList outputs = m_outputWireList;
+		
+	m_current = 0.0;
+		
+	WireList::const_iterator end = inputs.end();
+	for ( WireList::const_iterator it = inputs.begin(); it != end; ++it )
+	{
+		if ( !(*it)->currentIsKnown() )
+			return false;
+			
+		m_current -= (*it)->current();
+	}
+		
+	end = outputs.end();
+	for ( WireList::const_iterator it = outputs.begin(); it != end; ++it )
+	{
+		if ( !(*it)->currentIsKnown() )
+			return false;
+			
+		m_current += (*it)->current();
+	}
+	
+	m_bCurrentIsKnown = true;
+	return true;
+}
+