File indexing completed on 2024-05-05 05:46:07

 /***************************************************************************
  *   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 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() override;
 
     void stepNonLogic() override;
     bool doesStepNonLogic() const override
     {
         return true;
     }
     void drawShape(QPainter &p) override;
     bool contentChanged() const override;
 
 protected:
     QString displayText();
     void dataChanged() override;
     /**
      * Return the value / current, or whatever the meter is measuring
      */
     virtual double meterValue() = 0;
 
     double calcProp(double v) const;
 
     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;
 
     double m_prevProp; // Used in contentChanged()
 };
 
 /**
 @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 = nullptr);
     ~FrequencyMeter() override;
 
     static Item *construct(ItemDocument *itemDocument, bool newItem, const char *id);
     static LibraryItem *libraryItem();
 
 protected:
     double meterValue() override;
     ECNode *m_probeNode;
 };
 
 /**
 @short Simple resistor
 @author David Saxton
 */
 class ECAmmeter : public Meter
 {
 public:
     ECAmmeter(ICNDocument *icnDocument, bool newItem, const char *id = nullptr);
     ~ECAmmeter() override;
 
     static Item *construct(ItemDocument *itemDocument, bool newItem, const char *id);
     static LibraryItem *libraryItem();
 
 protected:
     double meterValue() override;
 
 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 = nullptr);
     ~ECVoltMeter() override;
 
     static Item *construct(ItemDocument *itemDocument, bool newItem, const char *id);
     static LibraryItem *libraryItem();
 
 protected:
     double meterValue() override;
 };
 
 #endif