logexampleview2.cpp

Log Engine的使用

/*
* ============================================================================
*  Name     : CLogExampleView2 from LogExampleView2.h
*  Part of  : LogExample
*  Created  : 26.05.2005 by Forum Nokia 
*  Implementation notes:
*     Initial content was generated by Series 60 Application Wizard.
*  Version  : 1.0
*  Copyright: Nokia Corporation
* ============================================================================
*/

// INCLUDE FILES
#include  "LogExample.hrh"
#include  "LogExampleView2.h"
#include  "LogExampleContainer2.h" 
#include  "LogExampleAppUi.h"
#include  "LogExEngine.h"

#include <aknviewappui.h>
#include <avkon.hrh>
#include <LogExample.rsg>
#include <aknquerydialog.h> // CAknQueryDialog
#include <eikmenup.h> // DynInitMenuPaneL

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

// ---------------------------------------------------------
// CLogExampleView2::ConstructL(const TRect& aRect)
// Symbian two-phased constructor
// ---------------------------------------------------------
//
void CLogExampleView2::ConstructL()
    {
    BaseConstructL( R_LOGEXAMPLE_VIEW2 );
    
    /* Container is created in constructor instead of 
    DoActivate because container implements observer
    interface and it is strictly connected to lifetime of view.
    */
    
    iContainer = new (ELeave) CLogExampleContainer2;
    iContainer->SetMopParent(this);
    iContainer->ConstructL( ClientRect() );
    AppUi()->AddToStackL( *this, iContainer );
    
    }

// ---------------------------------------------------------
// CLogExampleView2::~CLogExampleView2()
// Destructor
// ---------------------------------------------------------
//
CLogExampleView2::~CLogExampleView2()
    {
    if ( iContainer )
        {
        AppUi()->RemoveFromViewStack( *this, iContainer );
        }

    delete iContainer;
    iContainer = NULL;
    }

// ---------------------------------------------------------
// CLogExampleView2::GetObserver()
// Returns observer
// ---------------------------------------------------------
//
MEventsObserver* CLogExampleView2::GetObserver()
	{
	return iContainer;
	}
	
// ---------------------------------------------------------
// TUid CLogExampleView2::Id()
// Returns view's Uid
// ---------------------------------------------------------
//
TUid CLogExampleView2::Id() const
    {
    return KView2Id;
    }

// ---------------------------------------------------------
// CLogExampleView2::HandleCommandL(TInt aCommand)
// Takes care of view command handling
// ---------------------------------------------------------
//
void CLogExampleView2::HandleCommandL(TInt aCommand)
    {   
    switch ( aCommand )
        {
        case ELogExampleCmdShowDetails:
        	{
        	iContainer->ShowEventDetailsL();
        	break;	
        	}
        case ELogExampleCmdDelete:
        	{
        	CAknQueryDialog* deleteQuery = CAknQueryDialog::NewL();
        	
        	if(deleteQuery->ExecuteLD(R_LOGEXAMPLE_DELETECONFIRMATION_QUERY))
        		{
        		TLogId selectedId = -1;
        		iContainer->GetSelectedId(selectedId);
        		CLogExampleAppUi* appUi = static_cast<CLogExampleAppUi*>(AppUi());
        		CLogExEngine* model = appUi->Model();
        		iContainer->ResetEventList();
        		model->DeleteEventL(selectedId);		
        		}
        	break;
        	}	
        default:
            {
            AppUi()->HandleCommandL( aCommand );
            break;
            }
        }
    }

// ---------------------------------------------------------
// CLogExampleView2::HandleClientRectChange()
// Reacts client size change
// ---------------------------------------------------------
//
void CLogExampleView2::HandleClientRectChange()
    {
    if ( iContainer )
        {
        iContainer->SetRect( ClientRect() );
        }
    }

// ---------------------------------------------------------
// CLogExampleView2::DoActivateL(const TVwsViewId& /*aPrevViewId*/,TUid /*aCustomMessageId*/,
//  const TDesC8& /*aCustomMessage*/)
// Activates view
// ---------------------------------------------------------
//
void CLogExampleView2::DoActivateL(
   const TVwsViewId& /*aPrevViewId*/,TUid /*aCustomMessageId*/,
   const TDesC8& /*aCustomMessage*/)
   	{
   	iContainer->ResetEventList();  
	}

// ---------------------------------------------------------
// CLogExampleView2::DoDeactivate()
// Deactivates view
// ---------------------------------------------------------
//
void CLogExampleView2::DoDeactivate()
    {
    }

// ------------------------------------------------------------------------------
//  CLogExampleView2::DynInitMenuPaneL(TInt aResourceId,CEikMenuPane* aMenuPane)
//  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.
// ------------------------------------------------------------------------------
//
void CLogExampleView2::DynInitMenuPaneL(TInt aResourceId, CEikMenuPane* aMenuPane)
    {
   
   	/* 
   	Simple dynamic menu. 
   	Items are dimmed depending on state of the application.
   	Note: This can only be used with Series60 where items are hidden when dimmed.
   	*/
   
    if(	aResourceId == R_LOGEXAMPLE_VIEW2_MENU && iContainer->ListBoxItemCount() == 0)
    	{
    	aMenuPane->SetItemDimmed(ELogExampleCmdShowDetails, ETrue);
    	aMenuPane->SetItemDimmed(ELogExampleCmdDelete, ETrue);    	
    	}  
    } 
    
// ----------------------------------------------------
// CLogExampleView2::ResetEventList()
// Empties the list of events
// ----------------------------------------------------
//
void CLogExampleView2::ResetEventList()
	{
	iContainer->ResetEventList();
	}

// End of File