diff -r f15ac8e65a02 -r 779871d1e4f4 vtuis/videotelui/inc/CVtUiZoomControl.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtuis/videotelui/inc/CVtUiZoomControl.h	Wed Sep 01 12:29:12 2010 +0100
@@ -0,0 +1,268 @@
+/*
+* Copyright (c) 2004, 2005 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:  Navi pane zoom indicator control for 
+*                Video Telephone application.
+*
+*/
+
+
+
+#ifndef CVTUIZOOMCONTROL_H
+#define CVTUIZOOMCONTROL_H
+
+//  INCLUDES
+#include    <coecntrl.h>
+#include    <AknUtils.h>
+#include    "CVtUiBitmapManager.h"
+
+// CLASS DECLARATION
+
+/**
+*  Navi pane zoom indicator control for Video Telephone application.
+*
+*  @since Series 60 2.6
+*/
+class CVtUiZoomControl
+    : public CCoeControl
+    {
+    public: // Constructors and destructor
+        
+        /**
+        * C++ constructor.
+        * @param aBitmapManager bitmap manager.
+        */
+        CVtUiZoomControl( CVtUiBitmapManager& aBitmapManager );
+
+        /**
+        * Symbian constructor.
+        */
+        void ConstructL();
+
+        /**
+        * C++ destructor.
+        */
+        ~CVtUiZoomControl();
+
+    public: // New functions
+
+        /**
+        * Sets zoom parameters.
+        * @param aStepCount amount of steps, 0 if zooming disabled.
+        * @param aCurrentStep current step, 0 .. aStepCount.
+        */
+        void SetZoomParams( 
+            const TInt aStepCount, 
+            const TInt aCurrentStep );
+
+        /**
+        * Commits changes.
+        */
+        void CommitL();
+
+        /**
+        * Returns ETrue if zooming is enabled.
+        * @return ETrue if enabled.
+        */
+        TBool IsZoomEnabled() const;
+
+        /**
+        * Gets zoom parameters.
+        * @param aStepCount amount of steps, 0 if zooming disabled.
+        * @param aCurrentStep current step, 0 .. aStepCount.
+        */
+        void GetZoomParams(
+            TInt& aStepCount,
+            TInt& aCurrentStep ) const;
+
+        /**
+        * Updates zoom. This method should be called periodically during zooming.
+        * @return ETrue if zoom step was updated.
+        */
+        TBool UpdateZoomL();
+
+        /**
+        * Stops zoom. 
+        */
+        void StopZoom();
+
+    public: // Functions from base classes
+
+        /**
+        * From CCoeControl, handles key events.
+        * @param aKeyEvent key event.
+        * @param aType type of event.
+        * @return response indicating if key was consumed.
+        */
+        virtual TKeyResponse OfferKeyEventL(
+            const TKeyEvent& aKeyEvent,
+            TEventCode aType );
+
+        /**
+        * From CCoeControl, handles resource change.
+        * @param aType type of change.
+        */ 
+        virtual void HandleResourceChange(
+            TInt aType );
+
+    protected: // Functions from base classes
+
+        /**
+        * From CCoeControl, draws the control.
+        * @param aRect area to be drawn.
+        */
+        virtual void Draw( const TRect& aRect ) const;
+
+        /**
+        * From CCoeControl, handles size changes.
+        */
+        virtual void SizeChanged();
+
+        /**
+        * From CCoeControl, handles position changes.
+        */
+        virtual void PositionChanged();
+
+    private:
+
+        /**
+        * Calculates amount of steps to be shown.
+        * @param aFullSteps amount of full steps.
+        * @param aPartialStep partial steps, 0 .. 255.
+        */
+        void DetermineSteps(
+            TInt& aFullSteps,
+            TInt& aPartialStep ) const;
+
+        /**
+        * Generates zoom mask bitmap.
+        * @param aAreaBitmap maximum bitmap, ownership not transferred.
+        * @param aPartial partial amount.
+        * @param aRow area row number.
+        * @param aRowSize size of the row.
+        * @return ETrue if successful, EFalse otherwise.
+        */
+        TBool GenerateZoomMaskBitmap(
+            CFbsBitmap* aMaskBitmap,
+            const TInt aPartial,
+            const TInt aRow,
+            const TSize& aRowSize ) const;
+
+        /**
+        * Generates zoom mask bitmap.
+        * @param aAreaBitmap maximum bitmap, ownership not transferred.
+        * @param aPartial partial amount.
+        * @param aRow area row number.
+        * @param aRowSize size of the row.
+        */
+        void DoGenerateZoomMaskBitmap(
+            CFbsBitmap* aMaskBitmap,
+            const TInt aPartial,
+            const TInt aRow,
+            const TSize& aRowSize ) const;
+
+        /**
+        * Creates bitmaps.
+        * @return error code.
+        */
+        TInt CreateBitmaps();
+
+        /**
+        * Creates bitmaps.
+        */
+        void CreateBitmapsL();
+
+        /**
+        * Returns size of the temporary bitmaps.
+        * @return size of the temporary bitmaps.
+        */
+        TSize SizeOfBitmap() const;
+
+        /**
+        * Gets position and source rect.
+        * @param aPosition it will contain position.
+        * @param aSourceRect it will contain source rectangle.
+        * @param aZoomStep zoom step.
+        */
+        void GetPositionAndRect(
+            TPoint& aPosition,
+            TRect& aSourceRect,
+            const TInt aZoomStep ) const;
+
+    private:
+
+        // Inner class.
+        class CBitmap;
+
+        // Reference to bitmap manager.
+        CVtUiBitmapManager& iBitmapManager;
+
+        // Zoom direction bitmap identifier.
+        TVtUiBitmapPoolId iZoomDirId;
+
+        // Zoom area bitmap identifier.
+        TVtUiBitmapPoolId iZoomAreaId;
+
+        // Zoom min bitmap identifier.
+        TVtUiBitmapPoolId iZoomMinId;
+
+        // Zoom max bitmap identifier.
+        TVtUiBitmapPoolId iZoomMaxId;
+
+        // Zoom pane rectangle.
+        TRect iZoomPaneRect;
+
+        // Zoom direction layout.
+        TAknLayoutRect iZoomDirLayout;
+
+        // Zoom area layout.
+        TAknLayoutRect iZoomAreaLayout;
+
+        // Current step, 0 .. iMaxZoomStep.
+        TInt iCurrentZoomStep;
+        
+        // Maximum step.
+        TInt iMaxZoomStep;
+
+        // Used partial value used in iZoomMaskBitmap
+        // generation.
+        mutable TInt iZoomMaskPartial;
+
+        // Used row value used in iZoomMaskBitmap
+        // generation.
+        mutable TInt iZoomMaskRow;
+
+        // Owned partial soft mask.
+        CBitmap* iZoomPartialMask;
+        
+        // Owned partial shade (soft mask).
+        CBitmap* iZoomPartialShade;
+
+        // Owned partial shade mask.
+        CBitmap* iZoomPartialShadeMask;
+
+        // Zoom direction +1 or -1. 0 if no
+        // zoom ongoing.
+        TInt iZoomDirection;
+
+        // Zoom step at the start of zooming.
+        TInt iZoomStepStart;
+
+        // Start time of zooming.
+        TTime iZoomStartTime;
+
+    };
+
+#endif      // CVTUIZOOMCONTROL_H
+
+// End of File