imagecontainerview.cpp

使用yahoo图片搜索功能在手机上的以应用

/*
========================================================================
 Name		: ImageContainerView.cpp
 Author	  : 
 Copyright   : Copyright 2006 Nokia Corporation
 Description : 
========================================================================
*/
// [[[ begin generated region: do not modify [Generated System Includes]
#include <aknviewappui.h>
#include <eikmenub.h>
#include <avkon.hrh>
#include <barsread.h>
#include <eikimage.h>
#include <eikenv.h>
#include <akncontext.h>
#include <akntitle.h>
#include <stringloader.h>
#include <eikbtgpc.h>
#include <Yahoo.rsg>
// ]]] end generated region [Generated System Includes]

// [[[ begin generated region: do not modify [Generated User Includes]
#include "Yahoo.hrh"
#include "ImageContainerView.h"
#include "SearchResults.hrh"
#include "ImageContainer.h"
// ]]] end generated region [Generated User Includes]
#include <akniconutils.h>
#include "YahooImageSearchAppUi.h"

// [[[ begin generated region: do not modify [Generated Constants]
// ]]] end generated region [Generated Constants]

/**
 * First phase of Symbian two-phase construction. Should not contain any
 * code that could leave.
 */
CImageContainerView::CImageContainerView()
	{
	// [[[ begin generated region: do not modify [Generated Contents]
	iImageContainer = NULL;
	// ]]] end generated region [Generated Contents]
	iBitmap = NULL;
	
	}
/** 
 * The view's destructor removes the container from the control
 * stack and destroys it.
 */
CImageContainerView::~CImageContainerView()
	{
	// [[[ begin generated region: do not modify [Generated Contents]
	delete iImageContainer;
	iImageContainer = NULL;
	// ]]] end generated region [Generated Contents]
	delete iBitmap;
	iImageTitle.Close();
	}

/**
 * Symbian two-phase constructor.
 * This creates an instance then calls the second-phase constructor
 * without leaving the instance on the cleanup stack.
 * @return new instance of CImageContainerView
 */
CImageContainerView* CImageContainerView::NewL()
	{
	CImageContainerView* self = CImageContainerView::NewLC();
	CleanupStack::Pop( self );
	return self;
	}

/**
 * Symbian two-phase constructor.
 * This creates an instance, pushes it on the cleanup stack,
 * then calls the second-phase constructor.
 * @return new instance of CImageContainerView
 */
CImageContainerView* CImageContainerView::NewLC()
	{
	CImageContainerView* self = new (ELeave) CImageContainerView();
	CleanupStack::PushL( self );
	self->ConstructL();
	return self;
	}


/**
 * Second-phase constructor for view.  
 * Initialize contents from resource.
 */ 
void CImageContainerView::ConstructL()
	{
	// [[[ begin generated region: do not modify [Generated Code]
	BaseConstructL( R_IMAGE_CONTAINER_IMAGE_CONTAINER_VIEW );
				
	// ]]] end generated region [Generated Code]
	
	// add your own initialization code here
	}
	
/**
 * @return The UID for this view
 */
TUid CImageContainerView::Id() const
	{
	return TUid::Uid( EImageContainerViewId );
	}

/**
 * Handle a command for this view (override)
 * @param aCommand command id to be handled
 */
void CImageContainerView::HandleCommandL( TInt aCommand )
	{   
	// [[[ begin generated region: do not modify [Generated Code]
	TBool commandHandled = EFalse;
	switch ( aCommand )
		{	// code to dispatch to the AknView's menu and CBA commands is generated here
	
		case EAknSoftkeyBack:
			commandHandled = HandleControlPaneRightSoftKeyPressed( aCommand );
			break;
		default:
			break;
		}
	
		
	if ( !commandHandled ) 
		{
	
		if ( aCommand == EAknSoftkeyBack )
			{
			AppUi()->HandleCommandL( EEikCmdExit );
			}
	
		}
	// ]]] end generated region [Generated Code]
	
	}
	
void CImageContainerView::SetImageL(const TDesC16& title, CFbsBitmap *aBitmap)
{
	iImageTitle.SetLength(0);
	iImageTitle.ReAllocL(title.Length());
	iImageTitle.Copy(title);
	iBitmap = aBitmap;
}

/**
 *
 * @param aPrevViewId 
 * @param aCustomMessageId 
 * @param aCustomMessage
 */
void CImageContainerView::DoActivateL(
		const TVwsViewId& /*aPrevViewId*/,
		TUid /*aCustomMessageId*/,
		const TDesC8& /*aCustomMessage*/ )
	{
	// [[[ begin generated region: do not modify [Generated Contents]
	SetupStatusPaneL();
	
				
	if ( iImageContainer == NULL )
		{
		iImageContainer = CreateContainerL();
		iImageContainer->SetMopParent( this );
		AppUi()->AddToStackL( *this, iImageContainer );
		} 
	// ]]] end generated region [Generated Contents]
	
	if (iBitmap)
		{
		TSize bmSize = iBitmap->SizeInPixels();
		CEikImage *image = iImageContainer->Image();
		TSize controlSize = image->Size();
		image->SetPicture(iBitmap);
		image->SetPictureOwnedExternally(EFalse);
		iBitmap = NULL;
		
		CEikStatusPane *statusPane = StatusPane();
		TUid titlePaneUid;
		titlePaneUid.iUid = EEikStatusPaneUidTitle;
		CEikStatusPaneBase::TPaneCapabilities subPane =
			statusPane->PaneCapabilities(titlePaneUid);
		if (subPane.IsPresent() && subPane.IsAppOwned())
			{
			CAknTitlePane *titlePane = static_cast<CAknTitlePane*>(statusPane->ControlL(titlePaneUid));
			titlePane->SetTextL(iImageTitle);
			}
		}
	}

/**
 */
void CImageContainerView::DoDeactivate()
	{
	// [[[ begin generated region: do not modify [Generated Contents]
	CleanupStatusPane();
	
	if ( iImageContainer != NULL )
		{
		AppUi()->RemoveFromViewStack( *this, iImageContainer );
		delete iImageContainer;
		iImageContainer = NULL;
		}
	// ]]] end generated region [Generated Contents]
	
	}

// [[[ begin generated function: do not modify
void CImageContainerView::SetupStatusPaneL()
	{
	// reset the context pane
	TUid contextPaneUid = TUid::Uid( EEikStatusPaneUidContext );
	CEikStatusPaneBase::TPaneCapabilities subPaneContext = 
		StatusPane()->PaneCapabilities( contextPaneUid );
	if ( subPaneContext.IsPresent() && subPaneContext.IsAppOwned() )
		{
		CAknContextPane* context = static_cast< CAknContextPane* > ( 
			StatusPane()->ControlL( contextPaneUid ) );
		context->SetPictureToDefaultL();
		}
	
	// setup the title pane
	TUid titlePaneUid = TUid::Uid( EEikStatusPaneUidTitle );
	CEikStatusPaneBase::TPaneCapabilities subPaneTitle = 
		StatusPane()->PaneCapabilities( titlePaneUid );
	if ( subPaneTitle.IsPresent() && subPaneTitle.IsAppOwned() )
		{
		CAknTitlePane* title = static_cast< CAknTitlePane* >( 
			StatusPane()->ControlL( titlePaneUid ) );
		TResourceReader reader;
		iEikonEnv->CreateResourceReaderLC( reader, R_IMAGE_CONTAINER_TITLE_RESOURCE );
		title->SetFromResourceL( reader );
		CleanupStack::PopAndDestroy(); // reader internal state
		}
				
	}

// ]]] end generated function

// [[[ begin generated function: do not modify
void CImageContainerView::CleanupStatusPane()
	{
	}

// ]]] end generated function

/** 
 * Handle status pane size change for this view (override)
 */
void CImageContainerView::HandleStatusPaneSizeChange()
	{
	CAknView::HandleStatusPaneSizeChange();
	
	// this may fail, but we're not able to propagate exceptions here
	TInt result;
	TRAP( result, SetupStatusPaneL() ); 
	// [[[ begin generated region: do not modify [Generated Code]
	// ]]] end generated region [Generated Code]
	
	}
	
/** 
 * Handle the rightSoftKeyPressed event.
 * @return ETrue if the command was handled, EFalse if not
 */
TBool CImageContainerView::HandleControlPaneRightSoftKeyPressed( TInt aCommand )
	{
	CYahooImageSearchAppUi *appUi = static_cast<CYahooImageSearchAppUi*>(CCoeEnv::Static()->AppUi());
	appUi->ActivateLocalViewL(TUid::Uid(ESearchResultsViewId));
	return ETrue;
	}
				

/**
 *	Creates the top-level container for the view.  You may modify this method's
 *	contents and the CImageContainer::NewL() signature as needed to initialize the
 *	container, but the signature for this method is fixed.
 *	@return new initialized instance of CImageContainer
 */
CImageContainer* CImageContainerView::CreateContainerL()
	{
	return CImageContainer::NewL( ClientRect(), NULL, this );
	}