--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/vtuis/videotelui/inc/CVtUiZoomControl.h Mon Nov 23 14:47:47 2009 +0200
@@ -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