--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fmradio/fmradio/src/fmradioalfindicator.cpp	Tue Feb 02 00:17:10 2010 +0200
@@ -0,0 +1,333 @@
+/*
+* Copyright (c) 2007 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 of the class CFMRadioAlfIndicator
+*
+*/
+
+
+// INCLUDE FILES
+
+#include <alf/alfenv.h>
+#include <alf/alftextvisual.h>
+#include <alf/alfevent.h>
+#include <alf/alftransformation.h>
+#include <alf/alftextstyle.h>
+
+#include "fmradioalfindicator.h"
+
+// CONSTANTS
+
+const TInt  KIndicatorFadeInDefaultDurationTime = 500;
+const TInt  KIndicatorFadeOutDefaultDurationTime = 500;
+const TReal KDefaultOpacityInVisibleState = 1.0f;
+const TReal KDefaultOpacityInHiddenState = 0.0f;
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// ---------------------------------------------------------------------------
+// CFMRadioAlfIndicator::NewL
+// Two-phase constructor of CFMRadioAlfIndicator
+// ---------------------------------------------------------------------------
+//
+CFMRadioAlfIndicator* CFMRadioAlfIndicator::NewL( CAlfEnv& aEnv )
+	{
+	CFMRadioAlfIndicator* self = new (ELeave) CFMRadioAlfIndicator( );
+	CleanupStack::PushL(self);
+	self->ConstructL( aEnv );
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+// ----------------------------------------------------------------------------
+// CFMRadioAlfIndicator::CFMRadioAlfIndicator
+// Default constructor
+// ----------------------------------------------------------------------------
+//
+CFMRadioAlfIndicator::CFMRadioAlfIndicator( ) 
+:  iTextStyleId( KErrNotFound ),
+   iOpacityInVisibleState( KDefaultOpacityInVisibleState ),
+   iOpacityInHiddenState( KDefaultOpacityInHiddenState )
+	{
+	//No implementation needed
+	}
+
+// ----------------------------------------------------------------------------
+// CFMRadioAlfIndicator::ConstructL
+// Symbian 2nd phase constructor can leave.
+// ----------------------------------------------------------------------------
+//
+void CFMRadioAlfIndicator::ConstructL( CAlfEnv& aEnv )
+	{	    
+	CAlfControl::ConstructL( aEnv ); 
+    AddIndicatorLayerL();   
+    Hide( EFalse );
+  	}
+
+// ---------------------------------------------------------------------------
+// ~CFMRadioAlfIndicator::~CFMRadioAlfIndicator
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CFMRadioAlfIndicator::~CFMRadioAlfIndicator()
+	{
+	if( iTextStyleId != KErrNotFound )
+		{
+		CAlfTextStyleManager& manager = Env().TextStyleManager();
+		manager.DeleteTextStyle( iTextStyleId );
+		}
+	} 
+
+// ---------------------------------------------------------------------------
+// CFMRadioAlfIndicator::OfferEventL
+// From CAlfControl, takes care of alfred event handling. 
+// ---------------------------------------------------------------------------
+//
+TBool CFMRadioAlfIndicator::OfferEventL( const TAlfEvent& /*aEvent*/ )
+	{
+	return EFalse;
+	}
+
+// ---------------------------------------------------------------------------
+// CFMRadioAlfIndicator::SetRect
+// Sets the indicator rectangle. 
+// ---------------------------------------------------------------------------
+//
+void CFMRadioAlfIndicator::SetRect( const TRect& aRect )
+	{
+	iRect = aRect;
+	TRAP_IGNORE( SetTextStyleL() );
+	if( iIndicatorTextAnchor )
+		{
+		SetAbsoluteCornerAnchors( iIndicatorTextAnchor, 0, iRect.iTl, iRect.iBr );
+		iIndicatorTextAnchor->UpdateChildrenLayout();
+		}
+	}
+
+// ---------------------------------------------------------------------------
+// CFMRadioAlfIndicator::AddIndicatorLayerL
+// Creates the needed drawing layers and visual objects
+// for the indicator. 
+// ---------------------------------------------------------------------------
+//
+void CFMRadioAlfIndicator::AddIndicatorLayerL()
+	{   
+	// Create an anchor for the indicator layout 
+	iIndicatorTextAnchor = CAlfAnchorLayout::AddNewL( *this );	
+	
+	// Create visual object for the indicator
+	iText = CAlfTextVisual::AddNewL( *this, iIndicatorTextAnchor );
+	iText->SetColor( iTextColor );
+	}
+
+// ---------------------------------------------------------------------------
+// CFMRadioAlfIndicator::SetTextStyleL
+// Creates the text style for indicator
+// ---------------------------------------------------------------------------
+//
+void CFMRadioAlfIndicator::SetTextStyleL()
+	{
+    CAlfTextStyleManager& manager = Env().TextStyleManager();   
+    if ( iTextStyleId == KErrNotFound )
+        {
+        iTextStyleId = manager.CreatePlatformTextStyleL( 
+                EAknLogicalFontSecondaryFont,
+                EAlfTextStyleNormal );
+        }
+    iText->SetTextStyle( iTextStyleId );
+	}
+
+// ---------------------------------------------------------------------------
+// CFMRadioAlfIndicator::SetTextColor
+// Changes indicator text color.
+// ---------------------------------------------------------------------------
+//
+void CFMRadioAlfIndicator::SetTextColor( const TRgb& aTextColor )
+	{
+	iTextColor = aTextColor;
+	if( iText )
+		{
+		iText->SetColor( aTextColor );	
+		}
+	}
+
+// ---------------------------------------------------------
+// CFMRadioAlfIndicator::SetTextL
+// Sets the indicator text.
+// ---------------------------------------------------------
+//
+void CFMRadioAlfIndicator::SetTextL( const TDesC& aText ) 
+	{	 
+	iText->SetTextL( aText );
+	}
+
+// ---------------------------------------------------------
+// CFMRadioAlfIndicator::Show
+// Shows the indicator with the defined opacity value.
+// ---------------------------------------------------------
+//
+void CFMRadioAlfIndicator::Show( TBool aShowWithFading )
+	{
+	if( aShowWithFading )
+		{
+		Fade( iText, KIndicatorFadeInDefaultDurationTime, iOpacityInVisibleState );
+		}
+	else
+		{
+		Fade( iText, 0, iOpacityInVisibleState );
+		}	
+	}
+
+// ---------------------------------------------------------
+// CFMRadioAlfIndicator::Hide
+// Hides the indicator with the defined opacity value.
+// ---------------------------------------------------------
+//
+void CFMRadioAlfIndicator::Hide( TBool aHideWithFading )
+	{
+	if( aHideWithFading )
+		{
+		Fade( iText, KIndicatorFadeOutDefaultDurationTime, iOpacityInHiddenState );		
+		}
+	else
+		{
+		Fade( iText, 0, iOpacityInHiddenState );	
+		}
+	}
+
+// ---------------------------------------------------------------------------
+// CFMRadioAlfIndicator::SetOpacityInVisibleState
+// Sets the indicator opacity in visible state.
+// ---------------------------------------------------------------------------
+//
+void CFMRadioAlfIndicator::SetOpacityInVisibleState( const TReal aOpacity )
+	{
+	iOpacityInVisibleState = aOpacity;
+	}
+
+// ---------------------------------------------------------------------------
+// CFMRadioAlfIndicator::SetOpacityInHiddenState
+// Sets the indicator opacity in hidden state.
+// ---------------------------------------------------------------------------
+//
+void CFMRadioAlfIndicator::SetOpacityInHiddenState( const TReal aOpacity )
+	{
+	iOpacityInHiddenState = aOpacity;
+	}
+
+// ---------------------------------------------------------------------------
+// CFMRadioAlfIndicator::SetAbsoluteCornerAnchors
+// Sets absolute rect of the anchor by top left and bottom right points.
+// ---------------------------------------------------------------------------
+//
+void CFMRadioAlfIndicator::SetAbsoluteCornerAnchors( CAlfAnchorLayout* aAnchor,
+													 TInt aOrdinal,
+													 const TPoint& aTopLeftPosition,
+													 const TPoint& aBottomRightPosition )
+	{
+	if ( aAnchor )
+		{					
+		// Set top/left anchor.
+	    aAnchor->Attach( aOrdinal, 
+			             EAlfAnchorTypeTopLeft,
+			             TAlfXYMetric( TAlfMetric( aTopLeftPosition.iX ), TAlfMetric( aTopLeftPosition.iY ) ),
+			             EAlfAnchorAttachmentOriginTopLeft );
+		
+		
+		// Set bottom/right anchor.
+		aAnchor->Attach( aOrdinal, 
+		                 EAlfAnchorTypeBottomRight, 
+		                 TAlfXYMetric( TAlfMetric( aBottomRightPosition.iX ), TAlfMetric( aBottomRightPosition.iY ) ),
+		                 EAlfAnchorAttachmentOriginTopLeft );
+		}
+	}
+
+// ---------------------------------------------------------------------------
+// CFMRadioAlfIndicator::SetAbsoluteCornerAnchors
+// Sets absolute rect of the anchor by top left point and size of the rect
+// ---------------------------------------------------------------------------
+//	
+void CFMRadioAlfIndicator::SetAbsoluteCornerAnchors( CAlfAnchorLayout* aAnchor,
+												   	 TInt aOrdinal,
+													 const TPoint& aTopLeftPosition,
+													 const TSize& aSize )
+	{
+	if( aAnchor )
+		{
+		// set top left corner position
+		aAnchor->SetAnchor( EAlfAnchorTopLeft, aOrdinal,
+		EAlfAnchorOriginLeft, 
+		EAlfAnchorOriginTop,
+		EAlfAnchorMetricAbsolute, 
+		EAlfAnchorMetricAbsolute, 
+		TAlfTimedPoint( aTopLeftPosition.iX, aTopLeftPosition.iY ) );
+		// .. and set the bottom right corner also to fix the size
+		aAnchor->SetAnchor( EAlfAnchorBottomRight, aOrdinal,
+		EAlfAnchorOriginLeft, 
+		EAlfAnchorOriginTop,
+		EAlfAnchorMetricAbsolute, 
+		EAlfAnchorMetricAbsolute,
+		TAlfTimedPoint( aTopLeftPosition.iX + aSize.iWidth, aTopLeftPosition.iY + aSize.iHeight ) );			
+		}
+	}
+	
+// ---------------------------------------------------------------------------
+// CFMRadioAlfIndicator::SetRelativeCornerAnchors
+// Sets relative rect of the anchor by top left and bottom right points.
+// ---------------------------------------------------------------------------
+//
+void CFMRadioAlfIndicator::SetRelativeCornerAnchors( CAlfAnchorLayout* aAnchor,
+													 TInt aOrdinal,
+													 const TAlfRealPoint& aTopLeftPosition,
+													 const TAlfRealPoint& aBottomRightPosition )
+	{
+	if( aAnchor )
+		{
+		aAnchor->SetRelativeAnchorRect( aOrdinal,
+    	EAlfAnchorOriginLeft, EAlfAnchorOriginTop, aTopLeftPosition,
+        EAlfAnchorOriginLeft, EAlfAnchorOriginTop, aBottomRightPosition );		
+		}
+	}
+	
+// ---------------------------------------------------------------------------
+// CFMRadioAlfIndicator::SetRelativeCornerAnchors
+// Sets relative rect of the anchor by top left point and size of the rect
+// ---------------------------------------------------------------------------
+//	
+void CFMRadioAlfIndicator::SetRelativeCornerAnchors( CAlfAnchorLayout* aAnchor,
+													 TInt aOrdinal,
+													 const TAlfRealPoint& aTopLeftPosition,
+													 const TAlfRealSize& aSize )
+	{
+	if( aAnchor )
+		{
+		aAnchor->SetRelativeAnchorRect( aOrdinal,
+    	EAlfAnchorOriginLeft, EAlfAnchorOriginTop, aTopLeftPosition,
+        EAlfAnchorOriginLeft, EAlfAnchorOriginTop, aTopLeftPosition + TAlfRealPoint( aSize.iWidth, aSize.iHeight ) );		
+		}
+	}
+
+// ---------------------------------------------------------------------------
+// CFMRadioAlfIndicator::Fade
+// Sets the fading animation to the CAlfVisual object.
+// ---------------------------------------------------------------------------
+//
+void CFMRadioAlfIndicator::Fade( CAlfVisual* aVisual, TInt aFadingTime, TReal aOpacity ) const
+	{
+	TAlfTimedValue opacity;
+	opacity.SetTarget( aOpacity, aFadingTime ); // and smooth target
+	aVisual->SetOpacity( opacity );
+	}
+
+//  End of File  
+