imageloadercontainer.cpp

《基于Symbian OS的手机开发与应用实践》这本书的配套源码。

/*
* ============================================================================
*  Name     : CImageLoaderContainer from ImageLoaderContainer.h
*  Part of  : ImageLoader
*  Created  : 31.01.2006 by ToBeReplacedByCopyright
*  Implementation notes:
*     Initial content was generated by Series 60 Application Wizard.
*  Version  :
*  Copyright: ToBeReplacedByAuthor
* ============================================================================
*/

// INCLUDE FILES
#include <eikenv.h>
#include <eikappui.h>
#include <eikapp.h>
#include <aknutils.h>

#include "ImageLoaderContainer.h"


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

// ---------------------------------------------------------
// CImageLoaderContainer::ConstructL(const TRect& aRect)
// EPOC two phased constructor
// ---------------------------------------------------------
//
void CImageLoaderContainer::ConstructL(const TRect& aRect)
    {
    CreateWindowL();

    iImageLoaderEngine = CImageLoaderEngine::NewL(*this);

    SetRect(aRect);
    ActivateL();
    }

// Destructor
CImageLoaderContainer::~CImageLoaderContainer()
    {
    if(iImageLoaderEngine!=NULL)
        {
        delete iImageLoaderEngine;
        }
    delete iBitmap;
    }

void CImageLoaderContainer::OnCompleteL(CFbsBitmap* aBitmap, TInt aError)
    {
    if(aError!=KErrNone)
        {
        delete aBitmap;
        return;
        }

    if(aBitmap!=NULL)
        {
        delete iBitmap;
        }
    iBitmap = aBitmap;
    DrawDeferred();
    }

void CImageLoaderContainer::LoadL()
    {
    _LIT(KImageFile, "image.gif");
    TFileName imageFile(KImageFile);
    CompleteWithAppPath(imageFile);
    iImageLoaderEngine->LoadL(imageFile);
    }

// ---------------------------------------------------------
// CImageLoaderContainer::Draw(const TRect& aRect) const
// ---------------------------------------------------------
//
void CImageLoaderContainer::Draw(const TRect&/* aRect*/) const
    {
    if(iBitmap==NULL)
        {
        return;
        }

    CWindowGc& gc = SystemGc();
    if(iBitmap!=NULL)
        {
        TRect rect = Rect();
        TSize size = iBitmap->SizeInPixels();
        TPoint pos(0,0);
        if(size.iWidth<rect.Width())
            {
            pos.iX = (rect.Width()-size.iWidth)/2;
            }
        if(size.iHeight<rect.Height())
            {
            pos.iY = (rect.Height()-size.iHeight)/2;
            }
        gc.BitBlt(pos, iBitmap);
        }
    }


// End of File