--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiacceltk/hitchcock/Client/src/alfcontrolgroup.cpp	Wed Nov 03 19:29:22 2010 +0200
@@ -0,0 +1,335 @@
+/*
+* Copyright (c) 2006 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:   Control group
+*
+*/
+
+
+
+#include "alf/alfcontrolgroup.h"
+#include "alfcontrolgroupsubsession.h"
+#include "alf/alfcontrol.h" 
+#include "alf/alfenv.h"
+#include "alfclient.h"
+#include "alf/alftransformation.h"
+
+#include <uiacceltk/HuiUtil.h>
+
+// used flags
+enum TAlfControlGroupFlags
+    {
+    EAlfControlGroupAllowInput =        0x01
+    };
+
+// private data
+struct CAlfControlGroup::TPrivateData
+    {
+    RAlfControlGroupSubSession iControlGroupSubSession; // Owned
+    TUint iFlags;                           // Owned.
+    TInt iResourceId;                       // Owned.
+    CAlfEnv* iEnv;                          // Not owned.
+    RPointerArray<CAlfControl> iControls;   // Owned.
+    CAlfTransformation* iTransform;         // Owned.
+    CAlfDisplay* iBoundDisplay;				// Not owned.
+    };
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CAlfControlGroup::CAlfControlGroup()
+    {
+    }
+
+
+// ---------------------------------------------------------------------------
+// ConstructL
+// ---------------------------------------------------------------------------
+//
+void CAlfControlGroup::ConstructL(TInt aResourceId, CAlfEnv& aEnv)
+    {
+    iData = new (ELeave) TPrivateData;
+    
+    User::LeaveIfError(
+        iData->iControlGroupSubSession.Open(aEnv.Client(), aResourceId) );
+    
+    iData->iFlags = EAlfControlGroupAllowInput;
+    iData->iEnv = &aEnv;
+    //iData->iOpacity.Set(1.0);
+    iData->iResourceId = aResourceId;
+    iData->iTransform = NULL;
+    iData->iBoundDisplay = NULL;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CAlfControlGroup::~CAlfControlGroup()
+    {
+    if ( iData )
+        {
+        iData->iControls.ResetAndDestroy();
+        
+        delete iData->iTransform;
+        iData->iTransform = NULL;
+        
+        iData->iControlGroupSubSession.Close();
+        }
+    
+    delete iData;
+    iData = NULL;
+    }
+  
+// ---------------------------------------------------------------------------
+// Returns server side handle
+// ---------------------------------------------------------------------------
+//  
+TInt CAlfControlGroup::Identifier() const
+    {
+    return iData->iControlGroupSubSession.SubSessionHandle();
+    }
+
+// ---------------------------------------------------------------------------
+// Binds this control group to the given display.
+// ---------------------------------------------------------------------------
+//
+void CAlfControlGroup::BindDisplay(CAlfDisplay* aDisplay)
+	{
+	iData->iBoundDisplay = aDisplay;
+	}
+
+// ---------------------------------------------------------------------------
+// Returns ID.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CAlfControlGroup::ResourceId() const
+    {
+    return iData->iResourceId;
+    }
+
+// ---------------------------------------------------------------------------
+// Appends a control
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CAlfControlGroup::AppendL(CAlfControl* aControl)
+    {
+    TInt err = KErrNone;
+    
+    User::LeaveIfError( iData->iControls.Append(aControl) );
+        
+    // Update server side:
+    err = iData->iControlGroupSubSession.Append( aControl->Identifier() );
+    if ( err != KErrNone )
+        {
+        iData->iControls.Remove( iData->iControls.Count()-1 );
+        User::LeaveIfError( err );
+        }
+    
+    // Show the appended control if the control group was shown.
+    if ( iData->iBoundDisplay )
+    	{
+        TRAP( err, aControl->ShowL( *iData->iBoundDisplay ));    	
+    	}
+
+    // If a leave occurred remove the control from client and server side control group.
+    if ( err != KErrNone )
+        {        
+        iData->iControlGroupSubSession.Remove( aControl->Identifier() );
+        iData->iControls.Remove( iData->iControls.Count()-1 );
+        User::LeaveIfError( err );
+        }
+    
+    // Everything OK.
+    aControl->SetControlGroup(*this);    
+    }
+ 
+// ---------------------------------------------------------------------------
+// Removes a control
+// ---------------------------------------------------------------------------
+//   
+EXPORT_C TInt CAlfControlGroup::Remove(CAlfControl* aControl)
+    {
+    // Update server side:
+    TInt err = iData->iControlGroupSubSession.Remove( aControl->Identifier() );
+    
+    // Update own array if server side is OK.
+    if ( err == KErrNone )
+        {
+        // If found on the server side, we must find it also from the client side.
+        TInt index = iData->iControls.Find(aControl);
+        __ASSERT_DEBUG( index != KErrNotFound, USER_INVARIANT() );
+        if(index != KErrNotFound)
+            {
+            iData->iControls.Remove(index);
+            }
+        else
+            {
+            err = KErrNotFound;
+            }
+        }
+    else
+        {
+        // If we cannot find it from the server side, we must not find it on the client side.
+        __ASSERT_DEBUG( iData->iControls.Find(aControl) == KErrNotFound , USER_INVARIANT() );
+        }
+    
+    if ( err == KErrNone )
+        {
+        CAlfControlGroup* dummy = NULL;
+        aControl->SetControlGroup(*dummy);
+        
+        // Hide the control, if this control group has been visible
+        if( iData->iBoundDisplay )
+        	{
+        	aControl->Hide( *iData->iBoundDisplay );
+        	}
+        }
+    
+    return err;
+    }
+   
+// ---------------------------------------------------------------------------
+// Accepts input?
+// ---------------------------------------------------------------------------
+// 
+EXPORT_C TBool CAlfControlGroup::AcceptInput() const
+    {
+    return iData->iFlags&EAlfControlGroupAllowInput;
+    }
+    
+// ---------------------------------------------------------------------------
+// Set accepts input
+// ---------------------------------------------------------------------------
+// 
+EXPORT_C void CAlfControlGroup::SetAcceptInput(TBool aAcceptInput) 
+    {
+    if ( aAcceptInput )
+        {
+        iData->iFlags|=EAlfControlGroupAllowInput;
+        }
+    else
+        {
+        iData->iFlags&=~EAlfControlGroupAllowInput;
+        }
+    }
+   
+// ---------------------------------------------------------------------------
+// Finds control by ID
+// ---------------------------------------------------------------------------
+//  
+EXPORT_C CAlfControl* CAlfControlGroup::FindControl(TInt aId, TBool aUserId) const
+    {
+    for(TInt i = 0; i < iData->iControls.Count(); ++i)
+        {
+        if( (aUserId?
+            iData->iControls[i]->Id():
+            iData->iControls[i]->Identifier()) 
+                == aId)
+            {
+            return iData->iControls[i];
+            }
+        }
+    return NULL;
+    }
+
+// ---------------------------------------------------------------------------
+// Returns control count.
+// ---------------------------------------------------------------------------
+//    
+EXPORT_C TInt CAlfControlGroup::Count() const
+    {
+    return iData->iControls.Count();
+    }
+    
+// ---------------------------------------------------------------------------
+// Returns indexed control
+// ---------------------------------------------------------------------------
+// 
+EXPORT_C CAlfControl& CAlfControlGroup::Control(TInt aIndex) const
+    {
+    return *iData->iControls[aIndex];
+    }
+
+// ---------------------------------------------------------------------------
+// Enables transformation.
+// ---------------------------------------------------------------------------
+// 
+EXPORT_C void CAlfControlGroup::EnableTransformationL(TBool aIsTransformed)
+    {
+    if ( aIsTransformed && iData->iTransform )
+        {
+        // Already enabled
+        return;
+        }
+    
+    if ( !aIsTransformed && !iData->iTransform )
+        {
+        // Already disabled
+        return;
+        }
+    
+    if ( aIsTransformed )
+        {
+        iData->iTransform = CAlfTransformation::NewL(*iData->iEnv);
+        }
+   
+    // use the server handle from the transformation object if present
+    TInt transformationHandle = 
+        iData->iTransform ? 
+            iData->iTransform->ServerHandle() : 
+            0 ;
+            
+    // send the message to the server
+    TInt err = iData->iControlGroupSubSession.EnableTransformation(
+        transformationHandle,
+        aIsTransformed );
+     
+    if ( err == KErrNone && !aIsTransformed )
+        {
+        delete iData->iTransform;
+        iData->iTransform = NULL;
+        }
+    
+    if ( err != KErrNone )
+        {
+        delete iData->iTransform;
+        iData->iTransform = NULL;
+        User::Leave( err );
+        }
+    }
+    
+    
+// ---------------------------------------------------------------------------
+// Returns is transformation enabled
+// ---------------------------------------------------------------------------
+// 
+EXPORT_C TBool CAlfControlGroup::IsTransformed() const
+    {
+    return iData->iTransform != 0;
+    }
+    
+// ---------------------------------------------------------------------------
+// Returns transformation
+// ---------------------------------------------------------------------------
+// 
+EXPORT_C CAlfTransformation& CAlfControlGroup::Transformation()
+    {
+    __ASSERT_ALWAYS( iData->iTransform, USER_INVARIANT() );
+    return *iData->iTransform;        
+    }
+