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/***************************************************************************
* Copyright (C) 2005 by David Saxton *
* [email protected] *
* *
* 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 METER_H
#define METER_H
#include <component.h>
/**
@author David Saxton
*/
class Meter : public Component
{
public:
Meter( ICNDocument *icnDocument, bool newItem, const char *id );
~Meter();
virtual void stepNonLogic();
virtual bool doesStepNonLogic() const { return true; }
virtual void drawShape( QPainter &p );
protected:
QString displayText();
virtual void dataChanged();
/**
* Return the value / current, or whatever the meter is measuring
*/
virtual double meterValue() = 0;
bool b_firstRun; // If true, then update the text dispalyed
bool b_timerStarted; // The timer to change the text is started on change
double m_timeSinceUpdate;
double m_avgValue;
double m_old_value;
double m_minValue;
double m_maxValue;
Text *p_displayText;
QString m_unit;
};
/**
@short Measures the frequency at a point in the circuit
@author David Saxton
*/
class FrequencyMeter : public Meter
{
public:
FrequencyMeter( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
~FrequencyMeter();
static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
static LibraryItem *libraryItem();
protected:
virtual double meterValue();
ECNode *m_probeNode;
};
/**
@short Simple resistor
@author David Saxton
*/
class ECAmmeter : public Meter
{
public:
ECAmmeter( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
~ECAmmeter();
static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
static LibraryItem *libraryItem();
protected:
virtual double meterValue();
private:
VoltageSource *m_voltageSource;
};
/**
@short Displays voltage across terminals
@author David Saxton
*/
class ECVoltMeter : public Meter
{
public:
ECVoltMeter( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
~ECVoltMeter();
static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
static LibraryItem *libraryItem();
protected:
virtual double meterValue();
};
#endif
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