bitmapdrawview.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 144 行

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

// INCLUDES

//  Class include
#include "BitmapDrawView.h"

// System includes
#include <aknviewappui.h>    // CAknViewAppUi
#include <Bitmap.rsg>    // R_BITMAP_DRAWVIEW

// User includes
#include "BitmapDrawContainer.h"    // CBitmapDrawContainer
#include "Bitmap.hrh"    // TBitmapViewNumber

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

/** 
 * Destructor.  
 */

CBitmapDrawView::~CBitmapDrawView()
{
    delete iContainer;
}

/**
 * Symbian OS 2 phase constructor.
 * Constructs the CBitmapDrawView 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 CBitmapDrawView
 */

CBitmapDrawView* CBitmapDrawView::NewL()
{
    CBitmapDrawView* self = CBitmapDrawView::NewLC();
    CleanupStack::Pop(self);
    return self;
}

/**
 * Symbian OS 2 phase constructor.
 * Constructs the CBitmapDrawView 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 CBitmapDrawView
 */

CBitmapDrawView* CBitmapDrawView::NewLC()
{
    CBitmapDrawView* self = new (ELeave) CBitmapDrawView();
    CleanupStack::PushL(self);
    self->ConstructL();
    return self;
}

/**
 * Symbian OS 2nd phase constructor.  
 * Uses the superclass constructor to construct the view using the 
 * R_BITMAP_DRAWVIEW resource.
 */ 

void CBitmapDrawView::ConstructL()
{
    BaseConstructL(R_BITMAP_DRAWVIEW);
}

/**
 * Called by the framework
  * @return The Uid for this view
 */

TUid CBitmapDrawView::Id() const
{
    return TUid::Uid(EBitmapDrawViewId);
}

/**
 * Called by the framework when the view is activated.  Constructs the 
 * container if necessary, setting this view as its MOP parent, and 
 * adding it to the control stack.
 */

void CBitmapDrawView::DoActivateL(const TVwsViewId& /*aPrevViewId*/,
                                         TUid /*aCustomMessageId*/,
                                         const TDesC8& /*aCustomMessage*/)
{
    if (!iContainer)
    {
        iContainer = CBitmapDrawContainer::NewL(ClientRect());
        iContainer->SetMopParent(this);
        AppUi()->AddToStackL(*this, iContainer);
    }      
}

/**
 * Called by the framework when the view is deactivated.  
 * Removes the container from the control stack and deletes it.
 */

void CBitmapDrawView::DoDeactivate()
{
    if (iContainer)
    {
        AppUi()->RemoveFromStack(iContainer);
        delete iContainer;
        iContainer = NULL;
    }
}

/**
 * From CEikAppUi, takes care of command handling for this view.
 *
 * @param aCommand command to be handled
 */

void CBitmapDrawView::HandleCommandL(TInt aCommand)
{
    
    switch (aCommand)
    {
        case EAknSoftkeyBack:
        {
            AppUi()->HandleCommandL(EEikCmdExit);
            break;
        }
        default:
        {
            AppUi()->HandleCommandL(aCommand);
        }
    }
}

// End of File