1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/graphics/windowing/windowserver/inc/Graphics/wsdisplaypolicy.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,89 @@
     1.4 +// Copyright (c) 2008-2009 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 "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.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 +// Interface for Render Stage Display Policy
    1.18 +// 
    1.19 +//
    1.20 +
    1.21 +#ifndef WSDISPLAYPOLICY_H_
    1.22 +#define WSDISPLAYPOLICY_H_
    1.23 +
    1.24 +/**
    1.25 +@file
    1.26 +@publishedpartner 
    1.27 +@released
    1.28 +*/
    1.29 +
    1.30 +#include <graphics/displayconfiguration.h>
    1.31 +#include <graphics/wsgraphicdrawerinterface.h>
    1.32 +
    1.33 +class MWsDisplayPolicy: public MWsObjectProvider
    1.34 +	{
    1.35 +public:
    1.36 +	enum	
    1.37 +		{
    1.38 +		KUidWsDisplayPolicy	 =  0x102869FA, 	 
    1.39 +		ETypeId=				KUidWsDisplayPolicy,
    1.40 +		EWsObjectInterfaceId=	KUidWsDisplayPolicy
    1.41 +		};
    1.42 +	
    1.43 +	enum TDisplayStatus
    1.44 +		{
    1.45 +		EDetach = 0,
    1.46 +		EAttach,
    1.47 +		EConnecting,
    1.48 +		};
    1.49 +public:
    1.50 +	/**
    1.51 +	 * Notification from the Window Server that the application size mode list has been updated.
    1.52 +	 */
    1.53 +	virtual void NewAppModesAvailable()=0;
    1.54 +	/**
    1.55 +	 * Determine the display configuration and application rendering extent to use for a given screen size mode.
    1.56 +	 * 
    1.57 +	 * The Window Server uses this function when a request to change to a new screen size mode or new display 
    1.58 +	 * configuration is made by a client. The display configuration passed in may be partially filled, and the 
    1.59 +	 * combination of the defined entries in it and the requested screen size mode values shall be used to define 
    1.60 +	 * the rest of the configuration and new application extent to be used.
    1.61 +	 * 
    1.62 +	 * Only undefined entries in the configuration may be set by this function. Entries already defined must retain 
    1.63 +	 * the same values. If the combination of defined entries and size mode values is not acceptable to the implementer, 
    1.64 +	 * the function shall return KErrArgument.
    1.65 +	 * 
    1.66 +	 * If the function returns KErrNone, the Window Server shall set the returned display configuration, notify render 
    1.67 +	 * stages of the new application extent and change to use the screen size mode. If either this function returns 
    1.68 +	 * EFalse or the call to set the display configuration fails for any reason (such as KErrNoMemory, for example), 
    1.69 +	 * then no further changes are made.
    1.70 +	 * 
    1.71 +	 * @see MWsScreenConfigList
    1.72 +	 * @see MWsDisplayMapping
    1.73 +	 * 
    1.74 +	 * @param aScreenSizeMode The requested screen size mode. If static, the size in pixels, size in twips, and 
    1.75 +	 * the rotation must be respected. If dynamic, only the rotation must be respected.
    1.76 +	 * @param aConfig The requested display configuration on input, the required configuration on return. Only 
    1.77 +	 * undefined entries may be set.
    1.78 +	 * @param aExtent The screen size mode offset and size on input, the required application offset and size on return. 
    1.79 +	 * If the screen driver buffer is used as the UI surface, this must be left unchanged.
    1.80 +	 * @return KErrNone if no error, otherwise a system wide error code
    1.81 +	 */
    1.82 +	virtual TInt GetSizeModeConfiguration(TInt aScreenSizeMode, TDisplayConfiguration& aConfig, TRect& aSizeModePosition) const =0;
    1.83 +	virtual TInt SuitableAppMode(TDisplayStatus aSituation)=0;
    1.84 +	/**
    1.85 +	 * Sets the application mode resumed to after a display is connected again after a disconnect.
    1.86 +	 * 
    1.87 +	 * @param aMode The application mode.
    1.88 +	 */
    1.89 +	virtual void SetLastAppMode(TInt aMode)=0;
    1.90 +	};
    1.91 +
    1.92 +#endif /*WSDISPLAYPOLICY_H_*/