fontsandtextmetricsview.cpp

来自「最新官方例子,图形,描述副,基本控件,通讯协议,等等,」· C++ 代码 · 共 147 行

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

// INCLUDE FILES

// Class includes
#include "FontsAndTextMetricsView.h"

// System includes
#include <aknviewappui.h>	// CAknViewAppUi
#include <FontsAndText.rsg>	// R_FONTSANDTEXT_METRICSVIEW

// User Includes
#include  "FontsAndTextMetricsContainer.h"	// CFontsAndTextMetricsContainer

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

/** 
 * Destructor.  Frees up memory for the iContainer.
 * Also removes the Control from the control stack
 */
CFontsAndTextMetricsView::~CFontsAndTextMetricsView()
	{
	if (iContainer)
		{
		AppUi()->RemoveFromViewStack(*this, iContainer);
		}

	delete iContainer;
	}


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

/**
 * Symbian OS 2 phase constructor.
 * Constructs the CFontsAndTextMetricsView using the constructor and ConstructL 
 * method, leaving the constructed object on the CleanupStack before returning it.
 * 
 * @return The newly constructed CFontsAndTextMetricsView
 */
CFontsAndTextMetricsView* CFontsAndTextMetricsView::NewLC()
	{
	CFontsAndTextMetricsView* self = new (ELeave) CFontsAndTextMetricsView();
	CleanupStack::PushL(self);
	self->ConstructL();
	return self;
	}

/**
 * Symbian OS 2nd phase constructor.  
 * Uses the superclass constructor to construct the view using the 
 * R_FONTSANDTEXT_METRICSVIEW resource.
 */ 
void CFontsAndTextMetricsView::ConstructL()
	{
	BaseConstructL(R_FONTSANDTEXT_METRICSVIEW);
	}

/**
 * Called by the framework
 * @return The Uid for this view
 */
TUid CFontsAndTextMetricsView::Id() const
	{
	return KMetricsViewId;
	}

/**
 * From CEikAppUi, takes care of command handling for this view.
 *
 * @param aCommand command to be handled
 */
void CFontsAndTextMetricsView::HandleCommandL(TInt aCommand)
	{
	switch (aCommand)
		{
		case EAknSoftkeyBack:
			{
			AppUi()->HandleCommandL(EEikCmdExit);
			break;
			}
		default:
			{
			AppUi()->HandleCommandL(aCommand);
			break;
			}
		}
	}

/**
 * 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.
 *
 * @param aPrevViewId not used
 * @param aCustomMessageId not used
 * @param aCustomMessage not used
 */
void CFontsAndTextMetricsView::DoActivateL(
	const TVwsViewId& /*aPrevViewId*/,
	TUid /*aCustomMessageId*/,
	const TDesC8& /*aCustomMessage*/)
	{
	if (!iContainer)
		{
		iContainer = CFontsAndTextMetricsContainer::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 CFontsAndTextMetricsView::DoDeactivate()
	{
	if (iContainer)
		{
		AppUi()->RemoveFromViewStack(*this, iContainer);
		}

	delete iContainer;
	iContainer = NULL;
	}

// End of File