1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/epoc32/include/app/hlpzoom.h	Wed Mar 31 12:27:01 2010 +0100
     1.3 @@ -0,0 +1,83 @@
     1.4 +// Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +#ifndef __HLPZOOM_H__
    1.20 +#define __HLPZOOM_H__
    1.21 +
    1.22 +// System includes
    1.23 +#include <e32std.h>
    1.24 +
    1.25 +// Classes referenced
    1.26 +class MGraphicsDeviceMap;
    1.27 +
    1.28 +
    1.29 +///////////////////////////////////////////////////////////////////////////////////////
    1.30 +// ----> MHlpZoomStateManager (header)
    1.31 +///////////////////////////////////////////////////////////////////////////////////////
    1.32 +class MHlpZoomStateManager
    1.33 +/**
    1.34 +@internalComponent
    1.35 +@released
    1.36 +*/
    1.37 +	{
    1.38 +public: // Zoom state
    1.39 +	enum THlpZoomState
    1.40 +		{
    1.41 +		EHlpZoomStateSmall = -1,
    1.42 +		EHlpZoomStateNormal = 0,
    1.43 +		EHlpZoomStateLarge = 1
    1.44 +		};
    1.45 +
    1.46 +public: // From MHlpZoomStateManager
    1.47 +	virtual void SetZoomState(THlpZoomState aState) = 0;
    1.48 +	virtual THlpZoomState ZoomState() const = 0;
    1.49 +
    1.50 +public: // From MHlpZoomStateManager
    1.51 +	virtual MGraphicsDeviceMap& ZoomDeviceMap() const = 0;
    1.52 +	virtual TInt ZoomFactorValueForZoomState(THlpZoomState aState) const = 0;
    1.53 +	};
    1.54 +
    1.55 +
    1.56 +
    1.57 +///////////////////////////////////////////////////////////////////////////////////////
    1.58 +// ----> MHlpZoomStateObserver (header)
    1.59 +///////////////////////////////////////////////////////////////////////////////////////
    1.60 +class MHlpZoomStateObserver
    1.61 +/**
    1.62 +@internalComponent
    1.63 +@released
    1.64 +*/
    1.65 +	{
    1.66 +public: // From MHlpZoomStateObserver
    1.67 +	virtual void HandleZoomStateChangedL(MHlpZoomStateManager::THlpZoomState aZoomState) = 0;
    1.68 +	};
    1.69 +
    1.70 +
    1.71 +
    1.72 +///////////////////////////////////////////////////////////////////////////////////////
    1.73 +// ----> MHlpZoomStateChangeNotifier (header)
    1.74 +///////////////////////////////////////////////////////////////////////////////////////
    1.75 +class MHlpZoomStateChangeNotifier : public MHlpZoomStateManager
    1.76 +/**
    1.77 +@internalComponent
    1.78 +@released
    1.79 +*/
    1.80 +	{
    1.81 +public: // From MHlpZoomStateChangeNotifier
    1.82 +	virtual void RegisterForZoomStateChangeNotificationsL(MHlpZoomStateObserver& aObserver) = 0;
    1.83 +	virtual void RegisterForZoomStateChangeNotificationsCancel(MHlpZoomStateObserver& aObserver) = 0;
    1.84 +	};
    1.85 +
    1.86 +#endif