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/***************************************************************************
copyright : (C) 2009 by Kashyap R Puranik
email : kashthealien@gmail.com
***************************************************************************/
/***************************************************************************
* *
* 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 GASCALCULATOR_H
#define GASCALCULATOR_H
#include <KIcon>
#include <Plasma/PopupApplet>
#include <Plasma/Svg>
#include <kunitconversion/converter.h>
#include <kunitconversion/value.h>
#include "ui_gasCalculatorConfig.h"
#define GAS_R 0.08206
namespace Plasma{
class ComboBox;
class TextEdit;
class Label;
class Slider;
class SpinBox;
class RadioButton;
class PushButton;
}
enum ERROR_TYPE_GAS {
RESET_GAS_MESG = 0,
VOL_ZERO,
MOLAR_MASS_ZERO_
};
using namespace KUnitConversion;
// Define our plasma Applet
class gasCalculator : public Plasma::PopupApplet
{
Q_OBJECT
public:
// Basic Create/Destroy
gasCalculator(QObject *parent, const QVariantList &args);
~gasCalculator();
virtual void init();
virtual QGraphicsWidget *graphicsWidget();
public slots:
/// Calculates the Pressure
void calculatePressure();
/// Calculates the Volume
void calculateVol();
/// Calculates the Temperature
void calculateTemp();
/// Calculates the number of moles
void calculateMoles();
/// Calculates the mass of substance
void calculateMass();
/// Calculates the molar mass of the substance
void calculateMolarMass();
// Functions ( slots ) that occur on changing a value
/// occurs when the volume is changed
void volChanged();
/// occurs when the temperature is changed
void tempChanged();
/// occurs when the pressure is changed
void pressureChanged();
/// occurs when the mass is changed
void massChanged();
/*
* occurs when the number of moles is changed
* @param value is the number of moles
*/
void molesChanged(int value);
/*
* occurs when the molar mass is change\
* @param value is the molar mass
*/
void molarMassChanged(int value);
// occurs when Vander Val's constant a is changed
void Vand_aChanged();
// occurs when Vander Val's constant b is changed
void Vand_bChanged();
// occurs when any quantity is changed
void calculate();
/*
* This function prints error messages on the screen
* @param mode is the type of error that occurred, refer ERROR_TYPE_GAS
*/
void error(int);
/*
* This function sets the mode of calculation
* @param mode is the mode of calculation
*/
void setMode(int mode);
// This function initialises/ resets the class
void reset();
void configChanged();
protected:
void createConfigurationInterface(KConfigDialog *parent);
protected slots:
void gasConfigAccepted();
private:
Converter *m_converter;
// The following objects are for the user interface
QGraphicsWidget *m_widget;
Plasma::ComboBox *m_calculationMode;
Plasma::ComboBox *m_massUnit;
Plasma::ComboBox *m_pressureUnit;
Plasma::ComboBox *m_temperatureUnit;
Plasma::ComboBox *m_volumeUnit;
Plasma::ComboBox *m_aUnit;
Plasma::ComboBox *m_bUnit;
Plasma::SpinBox *m_molarMass;
Plasma::SpinBox *m_moles;
Plasma::SpinBox *m_mass;
Plasma::SpinBox *m_pressure;
Plasma::SpinBox *m_temperature;
Plasma::SpinBox *m_volume;
Plasma::SpinBox *m_Vand_a;
Plasma::SpinBox *m_Vand_b;
Plasma::Label *m_error;
Plasma::PushButton *m_reset;
double m_Moles; // Number of moles
double m_MolarMass; // molarMass
Value m_Mass; // mass
Value m_Temp; // Temperature
Value m_Pressure; // pressure
Value m_Vol; // volume
Value m_Vand_B; // vander val's constant b
//( Unit conversion library not available for the following quantities)
double m_Vand_A; // Vander val's constant a
int m_mode; // mode of calculation
/// Designer Config file
Ui::gasCalculatorConfig ui;
bool m_configUpdated;
// Indicates whether gas is assumed to be ideal by default
bool m_ideal;
};
// This is the command that links your applet to the .desktop file
K_EXPORT_PLASMA_APPLET(gasCalculator, gasCalculator)
#endif // GASCALCULATOR_H
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