imagemanipappview.cpp

鲜为人知的symbian s60 2rd图形图像处理源代码

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

// INCLUDES

//  Class include
#include "ImageManipAppView.h"

// System includes
#include <eikenv.h> // CEikonEnv

// User includes
#include "ImageModel.h"

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

/**
 * Symbian OS 2 phase constructor.
 * Constructs the CImageManipAppView using the NewLC method, popping
 * the constructed object from the CleanupStack before returning it.
 *
 * @param aRect The rectangle for this window
 * @return The newly constructed CImageManipAppView
 */
CImageManipAppView* CImageManipAppView::NewL(const TRect& aRect, MImageModel& aImageModel)
        {
        CImageManipAppView* self = CImageManipAppView::NewLC(aRect, aImageModel);
        CleanupStack::Pop(self);
        return self;
        }

/**
 * Symbian OS 2 phase constructor.
 * Constructs the CImageManipAppView using the constructor and ConstructL
 * method, leaving the constructed object on the CleanupStack before returning it.
 *
 * @param aRect The rectangle for this window
 * @return The newly constructed CImageManipAppView
 */
CImageManipAppView* CImageManipAppView::NewLC(const TRect& aRect, MImageModel& aImageModel)
        {
        CImageManipAppView* self = new (ELeave) CImageManipAppView(aImageModel);
        CleanupStack::PushL(self);
        self->ConstructL(aRect);
        return self;
        }

/**
 * Symbian OS 2nd phase constructor.  Creates a Window for the controls, which it contains.
 * Constructs a label and adds it to the window, which it then activates.
 * @param aRect The rectangle for this window
 */
void CImageManipAppView::ConstructL(const TRect& aRect)
        {
        CreateWindowL();
        SetRect(aRect);
        ActivateL();
        }

/**
 * Destructor.
 */
CImageManipAppView::~CImageManipAppView()
        {
        }

/**
 * C++ Constructor. Sets the image model reference
 *
 * @param aImageModel The image model used to get image to display
 */
CImageManipAppView::CImageManipAppView(MImageModel& aImageModel) :
        iImageModel(aImageModel)
        {
        }

/**
* Blank draw function so that engine initiated redraws are performed through
* separate draw functions and won't potentially cause confusion with system
* initiated one's
*
* @param aRect The rectangular area to draw to
*/
void CImageManipAppView::Draw(const TRect& /*aRect*/) const
        {
        CWindowGc& gc = SystemGc();
        TRect clientRect = Rect();
        gc.Clear(clientRect);
        CFbsBitmap* bitmap = &(iImageModel.Image());
        TSize bitmapSize = bitmap->SizeInPixels();
        TInt topLeftX = (clientRect.Width() - bitmapSize.iWidth) / 2;
        TInt topLeftY = (clientRect.Height() - bitmapSize.iHeight) / 2;
        gc.BitBlt(TPoint(topLeftX, topLeftY), bitmap);
        }

/**
 * Redraws the AppView using the newly converted image obtained through
 * MImageModel
 */
void CImageManipAppView::RedrawAppView() const
        {
        DrawNow();
        }

// End of File