www.pudn.com > calculator.rar > conversion.h


/****************************************************************************
**
** Copyright (C) 2000-2006 TROLLTECH ASA. All rights reserved.
**
** This file is part of the Phone Edition of the Qtopia Toolkit.
**
** Licensees holding a valid license agreement from Trolltech or any of its
** authorized distributors may use this file in accordance with
** the License Agreement provided with the Licensed Software.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Trolltech's Commercial License Agreements.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**
**
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#ifdef ENABLE_CONVERSION

#ifndef CONVERSIONIMPL_H
#define CONVERSIONIMPL_H

#include "../engine.h"
#include "../doubleinstruction.h"
#include "stdinputwidgets.h"

#include <QPushButton>
#include <QStackedWidget>
#include <QComboBox>

extern Engine *systemEngine;

class UnitConversionInstruction : public BaseDoubleInstruction {
public:
UnitConversionInstruction():BaseDoubleInstruction(){
name = "UnitConversion";
retType = type = "Double";
argCount = 1;
precedence = 0;
};
~UnitConversionInstruction(){};

void doEvalI(DoubleData *acc) {
DoubleData *result = new DoubleData();
if (tempFrom != 'n' &amt;&amt; tempTo != 'n') {
double tmp = acc->get();

if (tempFrom == 'k')
tmp -= 273;
if (tempFrom == 'f')
tmp = (tmp - 32) * 5 / 9;
if (tempTo == 'k')
tmp += 273;
if (tempTo == 'f')
tmp = tmp / 5 * 9 + 32;

result->set(tmp);
} else {
result->set(acc->get() * to / from);
}
systemEngine->putData(result);
};

static double from;
static double to;
static char tempFrom;
static char tempTo;
};

struct conversionData {
QString name;
double factor;
QPushButton *button;
};

struct conversionMode {
QString name;
QList<conversionData*> *dataList;
conversionData *defaultType;
};

class FormConversion:public DecimalInputWidget {
Q_OBJECT
public:
FormConversion(QWidget * parent = 0);
~FormConversion();

QString interfaceName() { return QString(tr("Conversion")); };

public slots:
void celciusButtonClicked ();
void fahrenheitButtonClicked ();
void kelvinButtonClicked ();

protected:
void showEvent ( QShowEvent * );
void init(int fromRow, int fromCol);

private:
QPushButton *PBC;
QList<conversionMode*> *modeList;
QComboBox *typeSelector;
QStackedWidget *conversionStack;

double currentFactor, newFactor;
QPushButton *currentButton, *newButton;

void doConversion();

public slots:
void selectType(int);
void conversionButtonClicked();

private slots:
void CClicked();
};

#endif //CONVERSIONIMPL_H
#endif //ENABLE_CONVERSION