cameraappview.cpp

Symbian智能手机操作系统源代码值的参考_摄像头

/*
* ============================================================================
*  Name     : CCameraAppView from CameraAppView.cpp
*  Part of  : CameraApp
*  Created  : 05/06/2006 by Forum Nokia
*  Version  : 2.0
*  Copyright: Nokia Corporation, 2006
* ============================================================================
*/

#include <aknviewappui.h>
#include <avkon.hrh>
#include <eikmenup.h>
#include <CameraApp.rsg>
#include "CameraAppView.h"
#include "CameraAppContainer.h" 
#include "CameraApp.hrh"
#include "CameraAppController.h"


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

	void CCameraAppView::ConstructL()

	Description: Symbian 2nd phase constructor can leave.
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CCameraAppView::ConstructL()
    {
    BaseConstructL( R_CAMERAAPP_VIEW1 );
    }


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

	CCameraAppView* CCameraAppView::NewLC( CCameraAppController& aController )

	Description: Two-phased constructor.
	Comments   :

    Return values: CCameraAppView object pointer

-----------------------------------------------------------------------------
*/
CCameraAppView* CCameraAppView::NewLC( CCameraAppController& aController )
    {
    CCameraAppView* self = new( ELeave ) CCameraAppView( aController );
    CleanupStack::PushL( self );
    self->ConstructL();
    return self;  
    }

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

	CCameraAppView::~CCameraAppView()

	Description: destructor, free allocated resources
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
CCameraAppView::~CCameraAppView()
    {
    if ( iContainer )
        {
        AppUi()->RemoveFromViewStack( *this, iContainer );
        }

    delete iContainer;
    }

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

	TUid CCameraAppView::Id() const

	Description: return the view ID
	Comments   :

    Return values: return the view ID

-----------------------------------------------------------------------------
*/
TUid CCameraAppView::Id() const
    {
    return KViewIdStandard;
    }

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

	void CCameraAppView::HandleCommandL(TInt aCommand)

	Description: takes care of command handling
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CCameraAppView::HandleCommandL(TInt aCommand)
    {   
    switch ( aCommand )
        {
        case EAknSoftkeyOk:
            {
            break;
            }

        case EAknSoftkeyBack:
            {
            AppUi()->HandleCommandL(EEikCmdExit);
            break;
            }

        default:
            {
            AppUi()->HandleCommandL( aCommand );
            break;
            }
        }
    }

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

	void CCameraAppView::DoActivateL( const TVwsViewId& aPrevViewId,
					TUid aCustomMessageId, const TDesC8& aCustomMessage )

	Description: called by framework when view is activated
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CCameraAppView::DoActivateL(
    const TVwsViewId& /*aPrevViewId*/,TUid /*aCustomMessageId*/,
    const TDesC8& /*aCustomMessage*/)
    {
    iController.InitializeCameraL(ClientRect());
    if (!iContainer)
        {
        iContainer = new (ELeave) CCameraAppContainer( iController );
        iContainer->SetMopParent(this);

        // Set the controller to the correct mode before the viewfinding
        iController.SetCameraMode( ECameraLandscapeMode );

        iContainer->ConstructL( ClientRect() );
        AppUi()->AddToStackL( *this, iContainer );
        iContainer->SetFocus( ETrue );
        } 
   }


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

	void CCameraAppView::DoDeactivate()

	Description: called by framework when view is deactivated
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CCameraAppView::DoDeactivate()
    {
    if ( iContainer )
        {
        iContainer->SetFocus(EFalse);
        AppUi()->RemoveFromViewStack( *this, iContainer );
        delete iContainer;
        iContainer = NULL;
        }    
    }

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

	void CCameraAppView::DynInitMenuPaneL(
			TInt aResourceId,CEikMenuPane* aMenuPane)

	Description: This function is called by the EIKON framework just before 
				 it displays a menu pane. Its default implementation is empty, 
				 and by overriding it,the application can set the state of menu
				 items dynamically according to the state of application data.
	Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CCameraAppView::DynInitMenuPaneL(
    TInt aResourceId, CEikMenuPane* aMenuPane )
    {
    if ( aResourceId == R_CAMERAAPP_APP_MENU )
        {
        // If image has been converted, then hide the "Snap" menu item
        TEngineState state = iController.GetEngineState();

        // If the engine is not in the idle state, bar the "Snap" function
        // from being accessed.
        if ( state != EEngineIdle || iController.IsCameraUsedByAnotherApp())
            aMenuPane->SetItemDimmed( ECameraAppCmdSnap, ETrue );

        // Only when the engine is in the converted state, show the "
        // "New image" menu item
        if ( state == EConverted )
            aMenuPane->SetItemDimmed( ECameraAppCmdNewImage, EFalse );
        else
            aMenuPane->SetItemDimmed( ECameraAppCmdNewImage, ETrue );
        }
    }


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

    void CCameraAppView::HandleStatusPaneSizeChange()

    Description: Called by framework when resource is changed.
    Comments   :

    Return values: N/A

-----------------------------------------------------------------------------
*/
void CCameraAppView::HandleStatusPaneSizeChange()
    {
    CAknView::HandleStatusPaneSizeChange(); //call to upper class
    if (iContainer)
        iContainer->SetRect(ClientRect());
    }