cameraappcontroller.cpp

S60官方摄像头程序

/*
* ============================================================================
*  Name     : CameraAppController.cpp
*  Part of  : Camera
*
*  Description:
*     Interface between the UI and the external modules
*     
*  Version:
*  Copyright: Nokia Corporation, 2004
* ============================================================================
*/

#include <AknViewAppUi.h>
#include <aknsoundsystem.h>
#include <CameraApp.rsg>
#include <bautils.h>
#include <PathInfo.h>

#include "CameraAppController.h"
#include "CameraAppContainer.h"
#include "CameraCaptureEngine.h"
#include "CameraAppBaseContainer.h"
#include "CameraAppView.h"
#include "CameraAppPortraitView.h"


const TInt KCompleteImageNameMaxLength = 40;

/*
-----------------------------------------------------------------------------

	CCameraAppController::CCameraAppController()

	Description: C++ default constructor
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
CCameraAppController::CCameraAppController()
    {
	// Set the default camera mode
	iCameraMode = ECameraLandscapeMode;
    }

/*
-----------------------------------------------------------------------------

	void CCameraAppController::PowerOff()

	Description: powers off the camera
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CCameraAppController::PowerOff()
    {
    iCameraCaptureEngine->PowerOff();
    }

/*
-----------------------------------------------------------------------------

	CCameraAppController::~CCameraAppController()

	Description: destructor, free allocated resources
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
CCameraAppController::~CCameraAppController()
    {
	// Power off the camera
	PowerOff();

	if ( iCameraCaptureEngine )
		delete iCameraCaptureEngine;
    delete iBitmapSnap;
	delete iImagePath;
	delete iPath;

    iSoundPlayer = NULL; //Not owned by the class, prevents Lint warning
    }

/*
-----------------------------------------------------------------------------

	void CCameraAppController::ConstructL()

	Description: Symbian OS second phase constructor
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CCameraAppController::ConstructL()
    {
    iFs = CEikonEnv::Static()->FsSession();
    iPath = new(ELeave) TFileName;

	// Create the sound player here
	CreateSoundPlayerL();

    TFileName path = PathInfo::PhoneMemoryRootPath(); //Default 
    path.Append( PathInfo::ImagesPath() );
    iImagePath = HBufC::NewL( path.Length() );
    iImagePath->Des().Copy( path );
    }

/*
-----------------------------------------------------------------------------

	TCameraState CCameraAppController::CameraMode() const   

	Description: gets the camera mode
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
TCameraState CCameraAppController::CameraMode() const   
    {
    return iCameraMode;
    }

/*
-----------------------------------------------------------------------------

	void CCameraAppController::SetCameraMode(TCameraState aCameraMode)

	Description: Set the camera display mode
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CCameraAppController::SetCameraMode(TCameraState aCameraMode)
	{
	iCameraMode = aCameraMode;
	}

/*
-----------------------------------------------------------------------------

	TDisplayMode CCameraAppController::DisplayMode() const

	Description: Returns default display mode
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
TDisplayMode CCameraAppController::DisplayMode() const
    {
    return iCameraCaptureEngine->DisplayMode();
    }

/*
-----------------------------------------------------------------------------

	void CCameraAppController::InitializeCameraL()     

	Description: Initialize still image capture engine
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CCameraAppController::InitializeCameraL()     
    {
	if ( iCameraCaptureEngine )
		{
		delete iCameraCaptureEngine;
		iCameraCaptureEngine = NULL;
		}

    iCameraCaptureEngine = CCameraCaptureEngine::NewL( *this );
	
    //Create snap image
    iBitmapSnap = new (ELeave) CWsBitmap( CEikonEnv::Static()->WsSession() );//faster
    User::LeaveIfError( iBitmapSnap->Create( TSize(KLandscapeImageWidth, KLandscapeImageHeight), DisplayMode() ) );
    }

/*
-----------------------------------------------------------------------------

	void CCameraAppController::ReleaseCamera()

	Description: releases a reserved camera
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CCameraAppController::ReleaseCamera()
    {
    iCameraCaptureEngine->ReleaseCamera();
    }

/*
-----------------------------------------------------------------------------

	void CCameraAppController::StartViewFinderL()

	Description: Starts the view finding operation 
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CCameraAppController::StartViewFinderL()
    {
    iCameraCaptureEngine->SetMode( iCameraMode );
    iCameraCaptureEngine->StartViewFinderL();
    }


/*
-----------------------------------------------------------------------------

	void CCameraAppController::SetAppContainer(CCoeControl* aAppContainer, 
			TCameraViewIds aViewId)

	Description: Gives reference to Active view container to Controller
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CCameraAppController::SetAppContainer( CCoeControl* aAppContainer, 
										    TCameraViewIds aViewId)
    {
    iContainer = aAppContainer;
    iActiveView = aViewId;
    }

/*
-----------------------------------------------------------------------------

	const TDesC& CCameraAppController::ImagePath() const

	Description: Returns the complete path of the saved image
	Comments   :

    Return values: Returns the complete path of the saved image

-----------------------------------------------------------------------------
*/
const TDesC& CCameraAppController::ImagePath() const
    {
    return *iImagePath;
    }

/*
-----------------------------------------------------------------------------

	const TDesC& CCameraAppController::ImagePath() const

	Description: Set the actual bitmap size
	Comments   :

    Return values: 

-----------------------------------------------------------------------------
*/
void CCameraAppController::SetActualVFSize( const TSize& /*aSize*/ )
    {
    if ( iContainer )
        {
        (STATIC_CAST(CCameraAppContainer*,iContainer))->ReDrawOffScreenBitmap( );
        }
    }

/*
-----------------------------------------------------------------------------

	void CCameraAppController::ViewFinding( CFbsBitmap& aFrame )

	Description: Gets image from image capture engine, and displays it on 
				 screen, called by the capture engine to display the bitmap
	Comments   :

    Return values: 

-----------------------------------------------------------------------------
*/
void CCameraAppController::ViewFinding( CFbsBitmap& aFrame )
    {
    if ( iContainer )
        {
        (STATIC_CAST(CCameraAppBaseContainer*,iContainer))->DrawImageNow( aFrame );
        }
    }

/*
-----------------------------------------------------------------------------

	void CCameraAppController::StopViewFinder()

	Description: Stops view finding
	Comments   :

    Return values: