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/***************************************************************************
 *   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.                                   *
 ***************************************************************************/

#ifndef DISCRETELOGIC_H
#define DISCRETELOGIC_H

#include "component.h"
#include "logic.h"

class Simulator;

/**
@short Boolean NOT
@author David Saxton
*/
class Inverter : public CallbackClass, public Component
{
	public:
		Inverter( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
		~Inverter();
	
		static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
		static LibraryItem *libraryItem();
	
	protected:
		void inStateChanged( bool newState );
		virtual void drawShape( TQPainter &p );
		
		LogicIn * m_pIn;
		LogicOut * m_pOut;
};

/**
@short Buffer
@author David Saxton
*/
class Buffer : public CallbackClass, public Component
{
public:
	Buffer( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
	~Buffer();
	
	static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
	static LibraryItem *libraryItem();
	
private:
	void inStateChanged( bool newState );
	virtual void drawShape( TQPainter &p );
		
	LogicIn * m_pIn;
	LogicOut * m_pOut;
};

/**
@short Boolean logic input
@author David Saxton
*/
class ECLogicInput : public Component
{
public:
	ECLogicInput( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
	~ECLogicInput();
	
	static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
	static LibraryItem *libraryItem();
	
	virtual void buttonStateChanged( const TQString &id, bool state );
	
private:
	virtual void dataChanged();
	virtual void drawShape( TQPainter &p );
	LogicOut * m_pOut;
	bool b_state;
};

/**
@short Boolean logic output
@author David Saxton
*/
class ECLogicOutput : public CallbackClass, public Component
{
	public:
		ECLogicOutput( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
		~ECLogicOutput();
	
		static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
		static LibraryItem *libraryItem();
	
	protected:
		void inStateChanged( bool newState );
		virtual void drawShape( TQPainter &p );
		
		unsigned long long m_lastDrawTime;
		unsigned long long m_lastSwitchTime;
		unsigned long long m_highTime;
		bool m_bLastState;
		
		double m_lastDrawState;
		LogicIn * m_pIn;
		Simulator * m_pSimulator;
};

#endif