--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/idlehomescreen/xmluirendering/renderingplugins/xnclockfactory/src/xnclockcontrol.cpp	Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,315 @@
+/*
+* Copyright (c) 2006-2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Implementation for xuikon clock.
+*
+*/
+
+
+// SYSTEM INCLUDE FILES
+#include <e32std.h>         // for RChangeNotifier
+
+// USER INCLUDE FILES
+#include "xncontroladapter.h"
+#include "xnclockadapter.h"
+#include "xnclockface.h"
+
+#include "xnclockcontrol.h"
+
+
+// LOCAL CONSTANTS AND MACROS
+static const TInt KIntervalTime( 60000000 ); // in microseconds
+
+
+// MODULE DATA STRUCTURES
+class CXnClockChangeHandler : public CActive
+    {
+    public: // Constructor and destructor
+        static CXnClockChangeHandler* NewL(
+            CXnClockControl& aClient )
+            {
+            CXnClockChangeHandler* self =
+                new (ELeave) CXnClockChangeHandler( aClient );
+            CleanupStack::PushL( self );
+            self->ConstructL();
+            CleanupStack::Pop( self );
+            return self;
+            }
+
+        virtual ~CXnClockChangeHandler()
+            {
+            Cancel();
+            iChangeNotifier.Close();
+            }
+
+    private: // From CActive
+        void DoCancel()
+            {
+            iChangeNotifier.LogonCancel();
+            // Return value is ignored.
+            }
+
+        void RunL()
+            {
+            if( iStatus.Int() & ( EChangesLocale | EChangesSystemTime ) )
+                {
+                iClient.TimeOrLocaleChanged();
+                }
+
+            User::LeaveIfError( iChangeNotifier.Logon( iStatus ) );
+            SetActive();
+            }
+
+    private: // Private constructors
+        void ConstructL()
+            {
+            User::LeaveIfError( iChangeNotifier.Create() );
+            User::LeaveIfError( iChangeNotifier.Logon( iStatus ) );
+            SetActive();
+            }
+
+        CXnClockChangeHandler( CXnClockControl& aClient )
+            : CActive( EPriorityStandard ), iClient( aClient )
+            {
+            CActiveScheduler::Add( this );
+            }
+
+    private: // Data
+        RChangeNotifier  iChangeNotifier;
+        CXnClockControl& iClient;
+    };
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CXnClockControl::CXnClockControl
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CXnClockControl::CXnClockControl( CXnClockAdapter* aAdapter,
+                                  const TBool aFormatFromLocale,
+                                  const TClockFormat aFormat )
+    : iAdapter( aAdapter ), 
+      iClockFormat( aFormat ),
+      iFormatFromLocale ( aFormatFromLocale )      
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// CXnClockControl::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CXnClockControl::ConstructL()
+    {           
+    iTimer = CPeriodic::NewL( CActive::EPriorityHigh );
+            
+    SetFormatL( iFormatFromLocale, iClockFormat );
+
+    iHandler = CXnClockChangeHandler::NewL( *this );
+    }
+
+// -----------------------------------------------------------------------------
+// CXnClockControl::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CXnClockControl* CXnClockControl::NewL( CXnClockAdapter* aAdapter,
+                                        const TBool aFormatFromLocale,
+                                        const TClockFormat aFormat )
+    {
+    CXnClockControl* self =
+        new (ELeave) CXnClockControl( aAdapter, aFormatFromLocale, aFormat );
+        
+    CleanupStack::PushL( self );    
+    self->ConstructL();
+    
+    CleanupStack::Pop( self );
+    
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CXnClockControl::~CXnClockControl()
+    {
+    delete iHandler;
+    delete iTimer;
+    delete iFace;
+    }
+
+// -----------------------------------------------------------------------------
+// CXnClockControl::UpdateDisplay
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CXnClockControl::UpdateDisplay()
+    {
+    if( !iFace )
+        {
+        return;
+        }
+            
+    iAdapter->UpdateDisplay();
+    }
+
+// -----------------------------------------------------------------------------
+// CXnClockControl::TimeOrLocaleChanged
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CXnClockControl::TimeOrLocaleChanged()
+    {
+    TLocale locale;
+
+    if( iFormatFromLocale && ( locale.ClockFormat() != iClockFormat ) )
+        {
+        TRAP_IGNORE( SetFormatL( iFormatFromLocale, locale.ClockFormat() ) );        
+        }
+        
+    UpdateDisplay();        
+    }
+
+// -----------------------------------------------------------------------------
+// CXnClockControl::SetFormatL
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CXnClockControl::SetFormatL( const TBool aFormatFromLocale, 
+                                  const TClockFormat aFormat )
+    {
+    TClockFormat format( aFormat );
+    
+    if( aFormatFromLocale )
+        {
+        format = TLocale().ClockFormat();                
+        }
+        
+    iFormatFromLocale = aFormatFromLocale;
+        
+    if( format == iClockFormat && iFace )
+        {
+        // Already correct face
+        return;    
+        }      
+            
+    iClockFormat = format;
+    
+    delete iFace;
+    iFace = NULL;
+
+    if( format == EClockAnalog )
+        {
+        iFace = CXnClockFaceAnalog::NewL();
+        }
+    else if( format == EClockDigital )
+        {
+        iFace = CXnClockFaceDigital::NewL();
+        }                
+    }
+
+// -----------------------------------------------------------------------------
+// CXnClockControl::Format
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//       
+TClockFormat CXnClockControl::Format() const
+    {
+    return iClockFormat;
+    }
+
+// -----------------------------------------------------------------------------
+// CXnClockControl::Draw
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//       
+void CXnClockControl::Draw( CWindowGc& aGc, const TRect& aRect ) const
+    {
+    if( iFace && !aRect.IsEmpty() )
+        {
+        TTime homeTime;
+        homeTime.HomeTime();
+
+        TRAP_IGNORE( iFace->DrawL( *iAdapter, aGc, aRect, homeTime ) );
+        
+        // Ensure timer is active
+        const_cast< CXnClockControl* >( this )->StartTimer();
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CXnClockControl::TimerCallback
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+TInt CXnClockControl::TimerCallback( TAny* aThis )
+    {
+    CXnClockControl* self = static_cast< CXnClockControl* >( aThis );
+
+    // Update the clock display
+    self->UpdateDisplay();
+
+    // Adjust the timer delay if necessary
+    TTime time;
+    time.HomeTime();
+    TDateTime dateTime( time.DateTime() );
+
+    if( dateTime.Second() > 0 )
+        {
+        self->iTimer->Cancel();
+        self->iTimer->After( KIntervalTime -
+            1000000 * dateTime.Second() - dateTime.MicroSecond() );
+        }
+
+    return KErrNone;
+    }
+    
+// -----------------------------------------------------------------------------
+// CXnClockControl::StartTimer
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CXnClockControl::StartTimer()
+    {
+    if ( iTimer && !iTimer->IsActive() )
+        {
+        TTime time;
+        time.HomeTime();
+        TDateTime dateTime( time.DateTime() );
+        TCallBack callBack( TimerCallback, this );
+
+        iTimer->Start(
+            TTimeIntervalMicroSeconds32(
+                KIntervalTime - 1000000 * dateTime.Second() - dateTime.MicroSecond() ),
+            TTimeIntervalMicroSeconds32( KIntervalTime ),
+            callBack );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CXnClockControl::StopTimer
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CXnClockControl::StopTimer()
+    {
+    if ( iTimer && iTimer->IsActive() )
+        {
+        iTimer->Cancel();
+        }
+    }
+
+//  End of File