imagecontainer.cpp

使用yahoo图片搜索功能在手机上的以应用

/*
========================================================================
 Name		: ImageContainer.cpp
 Author	  : 
 Copyright   : Copyright 2006 Nokia Corporation
 Description : 
========================================================================
*/
// [[[ begin generated region: do not modify [Generated System Includes]
#include <barsread.h>
#include <eikimage.h>
#include <eikenv.h>
#include <aknviewappui.h>
#include <eikappui.h>
#include <akniconutils.h>
#include <Yahoo.rsg>
// ]]] end generated region [Generated System Includes]

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

// [[[ 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.
 */
CImageContainer::CImageContainer()
	{
	// [[[ begin generated region: do not modify [Generated Contents]
	iImage = NULL;
	// ]]] end generated region [Generated Contents]
	
	}
/** 
 * Destroy child controls.
 */
CImageContainer::~CImageContainer()
	{
	// [[[ begin generated region: do not modify [Generated Contents]
	delete iImage;
	iImage = NULL;
	// ]]] end generated region [Generated Contents]
	
	}
				
/**
 * Construct the control (first phase).
 *  Creates an instance and initializes it.
 *  Instance is not left on cleanup stack.
 * @param aRect bounding rectangle
 * @param aParent owning parent, or NULL
 * @param aCommandObserver command observer
 * @return initialized instance of CImageContainer
 */
CImageContainer* CImageContainer::NewL( 
		const TRect& aRect, 
		const CCoeControl* aParent, 
		MEikCommandObserver* aCommandObserver )
	{
	CImageContainer* self = CImageContainer::NewLC( aRect, aParent, aCommandObserver );
	CleanupStack::Pop( self );
	return self;
	}

/**
 * Construct the control (first phase).
 *  Creates an instance and initializes it.
 *  Instance is left on cleanup stack.
 * @param aRect The rectangle for this window
 * @param aParent owning parent, or NULL
 * @param aCommandObserver command observer
 * @return new instance of CImageContainer
 */
CImageContainer* CImageContainer::NewLC( 
		const TRect& aRect, 
		const CCoeControl* aParent, 
		MEikCommandObserver* aCommandObserver )
	{
	CImageContainer* self = new (ELeave) CImageContainer();
	CleanupStack::PushL( self );
	self->ConstructL( aRect, aParent, aCommandObserver );
	return self;
	}
			
/**
 * Construct the control (second phase).
 *  Creates a window to contain the controls and activates it.
 * @param aRect bounding rectangle
 * @param aCommandObserver command observer
 * @param aParent owning parent, or NULL
 */ 
void CImageContainer::ConstructL( 
		const TRect& aRect, 
		const CCoeControl* aParent, 
		MEikCommandObserver* aCommandObserver )
	{
	if ( !aParent )
		{
		CreateWindowL();
		}
	else
		{
		SetContainerWindowL( *aParent );
		}
	iFocusControl = NULL;
	iCommandObserver = aCommandObserver;
	InitializeControlsL();
	SetRect( aRect );
	ActivateL();
	// [[[ begin generated region: do not modify [Post-ActivateL initializations]
	// ]]] end generated region [Post-ActivateL initializations]
	
	}
			
/**
* Return the number of controls in the container (override)
* @return count
*/
TInt CImageContainer::CountComponentControls() const
	{
	return (int) ELastControl;
	}
				
/**
* Get the control with the given index (override)
* @param aIndex Control index [0...n) (limited by #CountComponentControls)
* @return Pointer to control
*/
CCoeControl* CImageContainer::ComponentControl( TInt aIndex ) const
	{
	// [[[ begin generated region: do not modify [Generated Contents]
	switch ( aIndex )
		{
		case EImage:
			return iImage;
		}
	// ]]] end generated region [Generated Contents]
	
	// handle any user controls here...
	
	return NULL;
	}
				
/**
 *	Handle resizing of the container. This implementation will lay out
 *  full-sized controls like list boxes for any screen size, and will layout
 *  labels, editors, etc. to the size they were given in the UI designer.
 *  This code will need to be modified to adjust arbitrary controls to
 *  any screen size.
 */				
void CImageContainer::SizeChanged()
	{
	CCoeControl::SizeChanged();
	LayoutControls();
	// [[[ begin generated region: do not modify [Generated Contents]
	
	HandleImageContainerSizeChanged();
			
	// ]]] end generated region [Generated Contents]
	
	}
				
// [[[ begin generated function: do not modify
/**
 * Layout components as specified in the UI Designer
 */
void CImageContainer::LayoutControls()
	{
	iImage->SetExtent( TPoint( -1, -1 ), TSize( 242, 222 ) );
	}
// ]]] end generated function

/**
 *	Handle key events.
 */				
TKeyResponse CImageContainer::OfferKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aType )
	{
	// [[[ begin generated region: do not modify [Generated Contents]
	
	// ]]] end generated region [Generated Contents]
	
	if ( iFocusControl &&
			iFocusControl->OfferKeyEventL( aKeyEvent, aType ) == EKeyWasConsumed )
		return EKeyWasConsumed;
	return CCoeControl::OfferKeyEventL( aKeyEvent, aType );
	}
				
// [[[ begin generated function: do not modify
/**
 *	Initialize each control upon creation.
 */				
void CImageContainer::InitializeControlsL()
	{
	iImage = new ( ELeave ) CEikImage;
		{
		CFbsBitmap *bitmap = new (ELeave) CFbsBitmap;
		bitmap->Create( TSize( 1, 1), EGray2 );
		AknIconUtils::SetSize( bitmap, TSize( 242, 222 ), EAspectRatioPreserved );
		iImage->SetPicture( bitmap );
		}
	iImage->SetAlignment( EHCenterVCenter );
	
	}
// ]]] end generated function

/** 
 * Handle global resource changes, such as scalable UI or skin events (override)
 */
void CImageContainer::HandleResourceChange( TInt aType )
	{
	CCoeControl::HandleResourceChange( aType );
	SetRect( iAvkonViewAppUi->View( TUid::Uid( EImageContainerViewId ) )->ClientRect() );
	// [[[ begin generated region: do not modify [Generated Contents]
	// ]]] end generated region [Generated Contents]
	
	}
				
/**
 *	Draw container contents.
 */				
void CImageContainer::Draw( const TRect& aRect ) const
	{
	// [[[ begin generated region: do not modify [Generated Contents]
	CWindowGc& gc = SystemGc();
	gc.Clear( aRect );
	
	// ]]] end generated region [Generated Contents]
	
	}
				
/** 
 * Handle the sizeChanged event.
 */
void CImageContainer::HandleImageContainerSizeChanged()
	{
	TSize size = Size();
	iImage->SetExtent( TPoint( 0, 0 ), size );
	}