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IngredientViewItem Class Reference

#include <ingredientViewItem.hpp>


Public Member Functions

 IngredientViewItem (QListViewItem *parent, const QString &_amount1, const QString &_amount2, const QString &_amount3, const QString &_unit, const QString &_name, const QString &_prep)
 IngredientViewItem (QListViewItem *parent, QListViewItem *after, const QString &_amount1, const QString &_amount2, const QString &_amount3, const QString &_unit, const QString &_name, const QString &_prep)
void setAmount (double _amountDouble=0.0)
void setAmount (int _amountNominator, int _amountDenominator)
bool isNull (void) const
bool isFraction (void) const
void setFraction (bool _fraction)
double getAmountDouble (void) const
int getAmountNumber (void) const
int getAmountNominator (void) const
int getAmountDenominator (void) const

Protected Attributes

double amountDouble
int amountNominator
int amountDenominator

Detailed Description

Item for displaying an ingredient.
Date:
Wed Nov 27 2005
Author:
Jan Wedekind (wedesoft@users.sourceforge.net)

Definition at line 25 of file ingredientViewItem.hpp.

Constructor & Destructor Documentation

IngredientViewItem::IngredientViewItem ( QListViewItem *  parent,
const QString &  _amount1,
const QString &  _amount2,
const QString &  _amount3,
const QString &  _unit,
const QString &  _name,
const QString &  _prep 
)

Definition at line 26 of file ingredientViewItem.cpp.

References setAmount().

00032                                                               :
00033   QListViewItem( parent, "", _unit, _name, _prep )
00034 {
00035   if ( !_amount1.isEmpty() )
00036     setAmount( atof( _amount1 ) );
00037   else
00038     setAmount( atoi( _amount2 ), atoi( _amount3 ) );
00039 }

IngredientViewItem::IngredientViewItem ( QListViewItem *  parent,
QListViewItem *  after,
const QString &  _amount1,
const QString &  _amount2,
const QString &  _amount3,
const QString &  _unit,
const QString &  _name,
const QString &  _prep 
)

Definition at line 41 of file ingredientViewItem.cpp.

References setAmount().

00048                                                               :
00049   QListViewItem( parent, after, "", _unit, _name, _prep )
00050 {
00051   if ( !_amount1.isEmpty() )
00052     setAmount( atof( _amount1 ) );
00053   else
00054     setAmount( atoi( _amount2 ), atoi( _amount3 ) );
00055 }

Member Function Documentation

void IngredientViewItem::setAmount ( double  _amountDouble = 0.0  ) 

Definition at line 57 of file ingredientViewItem.cpp.

References amountDenominator, amountDouble, and amountNominator.

Referenced by IngredientViewItem(), and setFraction().

00058 {
00059   assert( _amountDouble >= 0.0 );
00060 
00061   amountDouble = _amountDouble;
00062   amountNominator = 0;
00063   amountDenominator = 0;
00064 
00065   if ( amountDouble != 0.0 )
00066     setText( 0, QString( "%1" ).arg( amountDouble ) );
00067   else
00068     setText( 0, "" );
00069 }

void IngredientViewItem::setAmount ( int  _amountNominator,
int  _amountDenominator 
)

Definition at line 71 of file ingredientViewItem.cpp.

References amountDenominator, amountDouble, amountNominator, and gcd().

00073 {
00074   assert( _amountNominator >= 0 );
00075   assert( _amountDenominator >= 0 );
00076 
00077   amountDouble = 0.0;
00078   amountNominator = _amountNominator;
00079   amountDenominator = _amountDenominator;
00080 
00081   if ( amountDenominator == 0 ) amountDenominator = 1;
00082 
00083   if ( amountNominator > 0 ) {
00084 
00085     int greatestCommonDivisor = gcd( amountNominator, amountDenominator );
00086     amountNominator /= greatestCommonDivisor;
00087     amountDenominator /= greatestCommonDivisor;
00088 
00089     if ( amountDenominator > 1 ) {
00090       if ( amountNominator >= amountDenominator )
00091         setText( 0, QString( "%1 %2/%3" ).
00092                  arg( amountNominator / amountDenominator ).
00093                  arg( amountNominator % amountDenominator ).
00094                  arg( amountDenominator ) );
00095       else
00096         setText( 0, QString( "%1/%2" ).
00097                  arg( amountNominator ).
00098                  arg( amountDenominator ) );
00099     } else
00100       setText( 0, QString( "%1" ).arg( amountNominator ) );
00101   
00102   } else
00103     setText( 0, "" );
00104 }

bool IngredientViewItem::isNull ( void   )  const [inline]

Definition at line 44 of file ingredientViewItem.hpp.

References amountDouble, and amountNominator.

00045     { return amountNominator == 0 && amountDouble == 0.0; }

bool IngredientViewItem::isFraction ( void   )  const [inline]

Definition at line 47 of file ingredientViewItem.hpp.

References amountDenominator.

Referenced by setFraction().

00047 { return amountDenominator > 0; }

void IngredientViewItem::setFraction ( bool  _fraction  ) 

Definition at line 106 of file ingredientViewItem.cpp.

References amountDenominator, amountDouble, amountNominator, isFraction(), and setAmount().

00107 {
00108   if ( _fraction != isFraction() ) {
00109     if ( _fraction ) {
00110       setAmount( (int)( amountDouble * 1000 ), 1000 );
00111     } else {
00112       assert( amountDenominator > 0 );
00113       setAmount( (double)amountNominator / amountDenominator );
00114     };
00115   };
00116 }

double IngredientViewItem::getAmountDouble ( void   )  const [inline]

Definition at line 51 of file ingredientViewItem.hpp.

References amountDouble.

00051 { return amountDouble; }

int IngredientViewItem::getAmountNumber ( void   )  const

Definition at line 118 of file ingredientViewItem.cpp.

References amountDenominator, and amountNominator.

00119 {
00120   assert( amountDenominator > 0 );
00121   return amountNominator / amountDenominator;
00122 }

int IngredientViewItem::getAmountNominator ( void   )  const

Definition at line 124 of file ingredientViewItem.cpp.

References amountDenominator, and amountNominator.

00125 {
00126   assert( amountDenominator > 0 );
00127   return amountNominator % amountDenominator;
00128 }

int IngredientViewItem::getAmountDenominator ( void   )  const [inline]

Definition at line 57 of file ingredientViewItem.hpp.

References amountDenominator.

00058     { return amountDenominator; }

Field Documentation

double IngredientViewItem::amountDouble [protected]

Definition at line 61 of file ingredientViewItem.hpp.

Referenced by getAmountDouble(), isNull(), setAmount(), and setFraction().

int IngredientViewItem::amountNominator [protected]

Definition at line 63 of file ingredientViewItem.hpp.

Referenced by getAmountNominator(), getAmountNumber(), isNull(), setAmount(), and setFraction().

int IngredientViewItem::amountDenominator [protected]

Definition at line 65 of file ingredientViewItem.hpp.

Referenced by getAmountDenominator(), getAmountNominator(), getAmountNumber(), isFraction(), setAmount(), and setFraction().

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

anymeal 0.30 - recipe management software - Make the most of your food! - © Jan Wedekind Sun Sep 14 16:01:29 2008 - GNU Free Documentation License