shapesmodel.cpp

来自「series60 应用程序开发的源代码 series60 应用程序开发的源代码」· C++ 代码 · 共 150 行

/**
 *
 * @brief Definition of CShapesModel
 *
 * Copyright (c) EMCC Software Ltd 2003
 * @version 1.0
 */

// INCLUDE FILES

// Class includes
#include "ShapesModel.h"

// CONSTANTS

const TInt KNumElements = 5;

// ================= MEMBER FUNCTIONS =======================

/**
 * Symbian OS 2 phase constructor.
 * Constructs the CShapesModel using the NewLC method, popping
 * the constructed object from the CleanupStack before returning it.
 * 
 * @return The newly constructed CShapesModel
 */
CShapesModel* CShapesModel::NewL()
{
    CShapesModel* self = CShapesModel::NewLC();
    CleanupStack::Pop(self);
    return self;
}

/**
 * Symbian OS 2 phase constructor.
 * Constructs the CShapesModel using the constructor and ConstructL 
 * method, leaving the constructed object on the CleanupStack before returning it.
 * 
 * @return The newly constructed CShapesModel
 */
CShapesModel* CShapesModel::NewLC()
{
    CShapesModel* self = new (ELeave) CShapesModel();
    CleanupStack::PushL(self);
    self->ConstructL();
    return self;
}
        
/** 
 * Destructor.
 * Frees memory allocated to the array.
 */
CShapesModel::~CShapesModel()
{
    iData.Close();
}

/**
 * Standard C++ constructor
 *
 */
CShapesModel::CShapesModel()
 : iData(KNumElements)
{
}

/**
 * Symbian OS 2nd phase constructor.  
 * Initializes all elements.
 */ 
void CShapesModel::ConstructL()
{
    for (TInt i = 0; i < KNumElements; i++)
    {
        iData.Append(0);
    }
}

/**
 * Returns the number of elements
 *
 * @return The number of elements
 */
const TInt CShapesModel::NumElements() const
{
    return iData.Count();
}

/**
 * Returns the value of an element at index aIndex
 * Note that there is no explicit bounds checking.
 *
 * @param aIndex The index of the element to be returned
 * @return The element value
 */
const TInt CShapesModel::ElementAt(TInt aIndex)
{
    return iData[aIndex];
}

/**
 * Sets the value of an element at index aIndex
 * Note that there is no explicit bounds checking.
 *
 * @param aValue The value the element is to be set to
 * @param aIndex The index of the element to be set
 */
void CShapesModel::SetElement(TInt aValue, TInt aIndex)
{
    iData[aIndex] = aValue;
}

/**
 * Returns the maximum element value
 *
 * @return The maximum element value
 */
const TInt CShapesModel::GetMaxValue() const
{
    TInt tempMax = 0;

    for (TInt i = 0; i < KNumElements; i++)    // Assumes that iData.Count() == KNumElements
    {
        if (tempMax < iData[i])
        {
            tempMax = iData[i];
        }
    }
    return tempMax;
}

/**
 * Returns the sum of element values
 *
 * @return The sum of element values
 */
const TInt CShapesModel::SumOfElements() const
{
    TInt tempSum = 0;

    for (TInt i = 0; i < KNumElements; i++)    // Assumes that iData.Count() == KNumElements
    {
        tempSum += iData[i];
    }

    return tempSum;
}

// End of File