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Public Member Functions | Private Types | Private Slots | Private Member Functions | Private Attributes | List of all members
CalculatorUtil Class Reference

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#include <calculator.h>

Inheritance diagram for CalculatorUtil:
Collaboration diagram for CalculatorUtil:

Public Member Functions

 CalculatorUtil (QWidget *parent=nullptr)
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virtual ~CalculatorUtil ()
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Private Types

enum  { NumDigitButtons = 10 }
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Private Slots

void digitClicked ()
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void unaryOperatorClicked ()
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void additiveOperatorClicked ()
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void multiplicativeOperatorClicked ()
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void equalClicked ()
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void pointClicked ()
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void changeSignClicked ()
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void backspaceClicked ()
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void clear ()
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void clearAll ()
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void clearMemory ()
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void readMemory ()
 
void setMemory ()
 
void addToMemory ()
 

Private Member Functions

Button * createButton (const QString &text, const char *member)
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void abortOperation ()
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bool calculate (double rightOperand, const QString &pendingOperator)
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Private Attributes

double sumInMemory
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double sumSoFar
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double factorSoFar
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QString pendingAdditiveOperator
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QString pendingMultiplicativeOperator
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bool waitingForOperand
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QLineEdit * display
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Button * digitButtons [NumDigitButtons]
 

Detailed Description

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Definition at line 66 of file calculator.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum
private

[9] //! [10]

Enumerator
NumDigitButtons 

Definition at line 117 of file calculator.h.

Constructor & Destructor Documentation

◆ CalculatorUtil()

CalculatorUtil::CalculatorUtil ( QWidget *  parent = nullptr)
explicit

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[0] [1] [1] //! [2]

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Definition at line 60 of file calculator.cpp.

References additiveOperatorClicked(), addToMemory(), backspaceClicked(), changeSignClicked(), clear(), clearAll(), clearMemory(), createButton(), digitButtons, digitClicked(), display, equalClicked(), multiplicativeOperatorClicked(), NumDigitButtons, pointClicked(), readMemory(), setMemory(), and unaryOperatorClicked().

◆ ~CalculatorUtil()

CalculatorUtil::~CalculatorUtil ( )
virtual

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Definition at line 150 of file calculator.cpp.

Member Function Documentation

◆ abortOperation()

void CalculatorUtil::abortOperation ( )
private

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Definition at line 391 of file calculator.cpp.

References clearAll(), and display.

Referenced by additiveOperatorClicked(), equalClicked(), multiplicativeOperatorClicked(), and unaryOperatorClicked().

◆ additiveOperatorClicked

void CalculatorUtil::additiveOperatorClicked ( )
privateslot

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[10] [10] //! [11]

[11] //! [12]

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[13] //! [14]

[14] //! [15]

[15] //! [16]

[16] //! [17]

Definition at line 201 of file calculator.cpp.

References abortOperation(), calculate(), display, factorSoFar, pendingAdditiveOperator, pendingMultiplicativeOperator, sumSoFar, and waitingForOperand.

Referenced by CalculatorUtil().

◆ addToMemory

void CalculatorUtil::addToMemory ( )
privateslot

Definition at line 375 of file calculator.cpp.

References display, equalClicked(), and sumInMemory.

Referenced by CalculatorUtil().

◆ backspaceClicked

void CalculatorUtil::backspaceClicked ( )
privateslot

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Definition at line 319 of file calculator.cpp.

References display, and waitingForOperand.

Referenced by CalculatorUtil().

◆ calculate()

bool CalculatorUtil::calculate ( double  rightOperand,
const QString &  pendingOperator 
)
private

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[38]

Definition at line 399 of file calculator.cpp.

References factorSoFar, and sumSoFar.

Referenced by additiveOperatorClicked(), equalClicked(), and multiplicativeOperatorClicked().

◆ changeSignClicked

void CalculatorUtil::changeSignClicked ( )
privateslot

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Definition at line 304 of file calculator.cpp.

References display.

Referenced by CalculatorUtil().

◆ clear

void CalculatorUtil::clear ( )
privateslot

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Definition at line 335 of file calculator.cpp.

References display, and waitingForOperand.

Referenced by CalculatorUtil().

◆ clearAll

void CalculatorUtil::clearAll ( )
privateslot

[28]

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Definition at line 346 of file calculator.cpp.

References display, factorSoFar, pendingAdditiveOperator, pendingMultiplicativeOperator, sumSoFar, and waitingForOperand.

Referenced by abortOperation(), and CalculatorUtil().

◆ clearMemory

void CalculatorUtil::clearMemory ( )
privateslot

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Definition at line 358 of file calculator.cpp.

References sumInMemory.

Referenced by CalculatorUtil().

◆ createButton()

Button * CalculatorUtil::createButton ( const QString &  text,
const char *  member 
)
private

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[32] [34]

[1] [1] //! [2]

Definition at line 382 of file calculator.cpp.

Referenced by CalculatorUtil().

◆ digitClicked

void CalculatorUtil::digitClicked ( )
privateslot

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Definition at line 155 of file calculator.cpp.

References display, and waitingForOperand.

Referenced by CalculatorUtil().

◆ equalClicked

void CalculatorUtil::equalClicked ( )
privateslot

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Definition at line 263 of file calculator.cpp.

References abortOperation(), calculate(), display, factorSoFar, pendingAdditiveOperator, pendingMultiplicativeOperator, sumSoFar, and waitingForOperand.

Referenced by addToMemory(), CalculatorUtil(), and setMemory().

◆ multiplicativeOperatorClicked

void CalculatorUtil::multiplicativeOperatorClicked ( )
privateslot

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Definition at line 241 of file calculator.cpp.

References abortOperation(), calculate(), display, factorSoFar, pendingMultiplicativeOperator, and waitingForOperand.

Referenced by CalculatorUtil().

◆ pointClicked

void CalculatorUtil::pointClicked ( )
privateslot

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Definition at line 293 of file calculator.cpp.

References display, and waitingForOperand.

Referenced by CalculatorUtil().

◆ readMemory

void CalculatorUtil::readMemory ( )
privateslot

Definition at line 363 of file calculator.cpp.

References display, sumInMemory, and waitingForOperand.

Referenced by CalculatorUtil().

◆ setMemory

void CalculatorUtil::setMemory ( )
privateslot

Definition at line 369 of file calculator.cpp.

References display, equalClicked(), and sumInMemory.

Referenced by CalculatorUtil().

◆ unaryOperatorClicked

void CalculatorUtil::unaryOperatorClicked ( )
privateslot

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[8] [8] //! [9]

Definition at line 171 of file calculator.cpp.

References abortOperation(), display, and waitingForOperand.

Referenced by CalculatorUtil().

Member Data Documentation

◆ digitButtons

Button* CalculatorUtil::digitButtons[NumDigitButtons]
private

Definition at line 118 of file calculator.h.

Referenced by CalculatorUtil().

◆ display

QLineEdit* CalculatorUtil::display
private

[8]

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Definition at line 114 of file calculator.h.

Referenced by abortOperation(), additiveOperatorClicked(), addToMemory(), backspaceClicked(), CalculatorUtil(), changeSignClicked(), clear(), clearAll(), digitClicked(), equalClicked(), multiplicativeOperatorClicked(), pointClicked(), readMemory(), setMemory(), and unaryOperatorClicked().

◆ factorSoFar

double CalculatorUtil::factorSoFar
private

[4] //! [5]

Definition at line 104 of file calculator.h.

Referenced by additiveOperatorClicked(), calculate(), clearAll(), equalClicked(), and multiplicativeOperatorClicked().

◆ pendingAdditiveOperator

QString CalculatorUtil::pendingAdditiveOperator
private

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Definition at line 106 of file calculator.h.

Referenced by additiveOperatorClicked(), clearAll(), and equalClicked().

◆ pendingMultiplicativeOperator

QString CalculatorUtil::pendingMultiplicativeOperator
private

[6] //! [7]

Definition at line 108 of file calculator.h.

Referenced by additiveOperatorClicked(), clearAll(), equalClicked(), and multiplicativeOperatorClicked().

◆ sumInMemory

double CalculatorUtil::sumInMemory
private

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Definition at line 100 of file calculator.h.

Referenced by addToMemory(), clearMemory(), readMemory(), and setMemory().

◆ sumSoFar

double CalculatorUtil::sumSoFar
private

[3] //! [4]

Definition at line 102 of file calculator.h.

Referenced by additiveOperatorClicked(), calculate(), clearAll(), and equalClicked().

◆ waitingForOperand

bool CalculatorUtil::waitingForOperand
private

[7] //! [8]

Definition at line 110 of file calculator.h.

Referenced by additiveOperatorClicked(), backspaceClicked(), clear(), clearAll(), digitClicked(), equalClicked(), multiplicativeOperatorClicked(), pointClicked(), readMemory(), and unaryOperatorClicked().

The documentation for this class was generated from the following files: