--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mulwidgets/alfscrollbarwidget/src/alfscrollbarcontrol.cpp	Wed Sep 01 12:23:18 2010 +0100
@@ -0,0 +1,267 @@
+/*
+* Copyright (c) 2007, 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:  Control Implementation with utilities for scrollbar widget.
+*
+*/
+
+// Toolkit includes
+#include <alf/alfenv.h>
+#include <alf/alfroster.h>
+#include <alf/alfdisplay.h>
+
+// Widget model includes
+#include <alf/alfwidgetevents.h>
+#include <alf/alfcontrolgroup.h>
+
+// Widget includes
+#include <alf/ialfscrollbardefaultbaseelement.h>
+#include "ialfscrollbarbaseelementinternal.h"
+
+// Internal includes
+#include "alfscrollbarcontrol.h"
+#include "alfscrollbarwidget.h"
+
+
+// namespaces
+using namespace osncore;
+using namespace alfscrollbarwidget;
+
+namespace Alf
+    {
+
+// ---------------------------------------------------------------------------
+//  Constructor.
+// ---------------------------------------------------------------------------
+//
+AlfScrollBarControl::AlfScrollBarControl(CAlfEnv& aEnv) : 
+    CAlfWidgetControl(aEnv)
+    {
+    mLayoutHeight = -1; //this means that the first draw is yet to happen.
+    mLayoutWidth = -1;  //this means that the first draw is yet to happen.
+    disableState(IAlfWidgetControl::Focusable);
+    mTactilefdbInstance = NULL;
+    mDragTactileFeedbackStarted = false;
+    mEnableTactile = false; // Next statement will make it true
+    EnableTactileFeedback(true);
+    }
+   
+// ---------------------------------------------------------------------------
+// Destructor.
+// ---------------------------------------------------------------------------
+//
+AlfScrollBarControl::~AlfScrollBarControl()
+    {
+    }
+   
+// ---------------------------------------------------------------------------
+// 
+// enableTactileFeedback
+// ---------------------------------------------------------------------------
+//
+void AlfScrollBarControl::EnableTactileFeedback(bool aEnabled)
+    {
+        if (!mTactilefdbInstance)
+            {
+             mEnableTactile = aEnabled;
+             mTactilefdbInstance = MTouchFeedback::Instance();
+            }
+    }
+
+//-----------------------------------------------------------------------------
+//
+//  TouchTactileEffectOnTouch
+//-----------------------------------------------------------------------------
+
+void AlfScrollBarControl::TactileEffectOnTouchandHold()
+    {
+    if (mTactilefdbInstance)
+        {
+         mTactilefdbInstance->InstantFeedback(ETouchFeedbackSlider);
+        }
+    }
+
+//-------------------------------------------------------------------------------
+//
+//
+//--------------------------------------------------------------------------------     
+            
+void AlfScrollBarControl::TactileEffectOnDrag(TAlfEvent& aEvent)
+{            
+ if (mTactilefdbInstance)
+  {
+    CCoeControl* ccoecntrl = static_cast<CCoeControl*>(Display()->ObjectProvider());
+    TInt intensity = 50;
+    TTimeIntervalMicroSeconds32 timespan = 400000;
+    mTactilefdbInstance->StartFeedback(ccoecntrl,ETouchContinuousSlider,&aEvent.PointerEvent(),intensity,timespan);
+    mDragTactileFeedbackStarted = true;
+  }
+}
+
+//-------------------------------------------------------------------------------
+//
+//   TouchTactileEffectOnRelease
+//--------------------------------------------------------------------------------
+//    
+void AlfScrollBarControl::TactileEffectOnRelease()    
+{
+	if (mTactilefdbInstance)
+	{
+	if ( mDragTactileFeedbackStarted )
+	    {
+	    	// Touch Release on Thumb after drag
+        CCoeControl* ccoecntrl = static_cast<CCoeControl*>(Display()->ObjectProvider());
+	    mTactilefdbInstance->StopFeedback(ccoecntrl);
+	    mDragTactileFeedbackStarted = false;
+	    }
+	else
+	    {
+	    // Touch Release on thumb	
+	    mTactilefdbInstance->InstantFeedback(ETouchFeedbackSlider);
+	    }
+	}
+}
+
+// ---------------------------------------------------------------------------
+//
+// getTactileFeedbackState
+// 
+// ---------------------------------------------------------------------------
+bool AlfScrollBarControl::IsTactileFeedbackEnabled()
+    {
+    return mEnableTactile;
+    }
+
+// ---------------------------------------------------------------------------
+// From Base class CAlfControl
+// Notifies the owner that the layout of a visual has been recalculated.
+// Called only when the EAlfVisualFlagLayoutUpdateNotification flag has
+// been set for the visual.
+// ---------------------------------------------------------------------------
+//
+void AlfScrollBarControl::VisualLayoutUpdated(CAlfVisual& aVisual)
+    {
+    if((mLayoutWidth == -1 && roundFloatToInt(
+        aVisual.Size().ValueNow().iX) == 0) ||
+        (mLayoutHeight == -1 && roundFloatToInt(
+            aVisual.Size().ValueNow().iY) == 0))
+        {
+        return; /*No size assigned yet*/
+        }
+    else
+        {
+        //do nothing
+        }   
+
+    if(mLayoutWidth == roundFloatToInt(aVisual.Size().ValueNow().iX)  && 
+        mLayoutHeight == roundFloatToInt(aVisual.Size().ValueNow().iY))
+        {
+        //return; /* No change in layout size */
+        }
+        else
+        {
+        //do nothing
+        }
+
+    mLayoutWidth = roundFloatToInt(aVisual.Size().ValueNow().iX);
+    mLayoutHeight = roundFloatToInt(aVisual.Size().ValueNow().iY);
+    IAlfElement* baseelement = findElement ("BaseElement");
+    IAlfScrollBarBaseElementInternal* elementInternal = NULL;
+    if(baseelement)
+	    {
+	    elementInternal = 
+	      static_cast<IAlfScrollBarBaseElementInternal*> (
+	      baseelement->makeInterface(IAlfScrollBarBaseElementInternal::type()));	
+	    }
+	else
+		{
+		// do nothing	
+		}
+    
+    if(elementInternal)
+        {
+        elementInternal->baseLayoutSizeChanged();
+        }
+    else
+        {
+        //do nothing
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// Returns top level layout.
+// ---------------------------------------------------------------------------
+//
+CAlfLayout* AlfScrollBarControl::ContainerLayout(
+    const CAlfControl* /*aConnected*/) const
+    {
+    //Return the root layout of the control
+    return(static_cast<CAlfLayout*> (&Visual(0)));
+    }
+
+// ---------------------------------------------------------------------------
+// From base class CAlfWidgetControl
+// Handle Alfred events.
+// ---------------------------------------------------------------------------
+//
+AlfEventStatus AlfScrollBarControl::handleEvent( const TAlfEvent& aEvent )
+    {
+    IAlfElement *base = findElement("BaseElement");
+        
+    if(aEvent.IsCustomEvent())
+        {
+        if(aEvent.CustomParameter() == EEventMissedPointerUp) 
+            {
+            if(base)
+            	{
+            	IAlfWidgetEventHandler* element = 
+	                    static_cast<IAlfWidgetEventHandler*> (
+	                        base->makeInterface(IAlfWidgetEventHandler::type()));
+	            if(element)
+		            {
+		            	element->offerEvent(*this,aEvent);
+		            }
+	            
+            	}
+            }
+        }
+    else if(aEvent.IsPointerEvent())
+        {
+        // if the type of base element is scrollbardefaultbaseelement, then
+        // convert the event to custom event
+        if(base)
+        	{
+         
+	        if(base->makeInterface(
+	            IAlfScrollBarDefaultBaseElement::type()) != NULL)
+	            {
+	            TAlfEvent customevent(EEventScrollBarClicked,(TInt )&aEvent);
+	            return CAlfWidgetControl::processEvent(customevent);	            
+	            }
+	        else // other elements (like AlfElement) dont understand custom events
+	            { // Let them handle the original event in their own way
+	            return CAlfWidgetControl::handleEvent(aEvent);	                       
+		        }
+            }
+        }     
+    //ScrollBar should not handle any key event
+    else
+        { 
+        return EEventNotHandled;
+        }
+    
+    return EEventNotHandled;
+    }
+
+    }//End of namespace Alf
+//End of File