author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 19 Mar 2010 09:28:59 +0200 | |
changeset 23 | 74c9f037fd5d |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Handles & propogates UI state change notifications. |
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* |
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*/ |
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/** |
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* @internal reviewed 24/08/2007 by D Holland |
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*/ |
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#ifndef __GLXTV_H__ |
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#define __GLXTV_H__ |
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// External Includes |
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#include <e32def.h> |
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#include <e32base.h> |
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// Internal Includes |
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#include <glxtvconstants.h> |
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// Forward Declarations |
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class MGlxTvObserver; |
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class CGlxWindowVisibilityMonitor; |
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class CGlxTvConnectionMonitor; |
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class CRepository; |
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// For window server visibility notifications |
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class MGlxWindowVisibilityObserver |
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{ |
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public: |
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/** |
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* Handle changes to the application window visiblity |
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* Called when window visible state changes |
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* @param aChangeType The visibility change type |
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*/ |
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virtual void HandleWindowVisibilityChangedL( TTvChangeType aChangeType ) = 0; |
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}; |
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// For Tv connection notification |
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class MGlxTvConnectionObserver |
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{ |
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public: |
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/** |
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* Handle TV connection state changes |
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*/ |
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virtual void HandleTvConnectionStatusChangedL( ) = 0; |
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}; |
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/** |
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* Class Description |
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* A class that handles and propagates UI change notifications |
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* @author Loughlin |
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*/ |
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NONSHARABLE_CLASS (CGlxTv) : public CBase, |
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public MGlxWindowVisibilityObserver, |
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public MGlxTvConnectionObserver |
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{ |
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public: |
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/** |
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* Static Symbian 2 stage constructor. |
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* @param a TvObserver |
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*/ |
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IMPORT_C static CGlxTv* NewL( MGlxTvObserver& aTvObserver ); |
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/** |
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* Destructor. |
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*/ |
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IMPORT_C ~CGlxTv(); |
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private: |
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/** |
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* Standard C++ constructor |
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* @param a TvObserver |
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*/ |
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CGlxTv(MGlxTvObserver& aTvObserver); |
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/* |
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* Symbian second stage construction |
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*/ |
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void ConstructL(); |
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public: // class public method |
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/** |
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* Get the current screen size |
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* @return the Screen size in pixels |
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*/ |
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IMPORT_C TSize ScreenSizeL() const; |
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/** |
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* Is the Analog TV Connected |
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* @return ETrue if active, otherwise EFalse |
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*/ |
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IMPORT_C TBool IsConnected() const; |
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/** |
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* Is the TV widescreen |
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* @return ETrue if widescreen, otherwise EFalse |
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*/ |
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IMPORT_C TBool IsWidescreen() const; |
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/** |
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* Is the HDMI TV Connected |
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* @return ETrue if active, otherwise EFalse |
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*/ |
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IMPORT_C TBool IsHDMIConnected() const; |
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public: // from MGlxWindowVisibilityObserver |
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/** |
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* @ref MGlxWindowVisibilityObserver::HandleWindowVisibilityChangedL |
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*/ |
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void HandleWindowVisibilityChangedL( TTvChangeType aChangeType ); |
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public: // from MGlxTvConnectionObserver |
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/** |
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* @ref MGlxTvConnectionObserver::HandleTvConnectionStatusChangedL |
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*/ |
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void HandleTvConnectionStatusChangedL( ); |
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private: // new private methods |
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/** |
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* Retrive the TV Display Aspect Ratio and TV Setting |
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* Calculate the screen size from aspect ratio and TV type |
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*/ |
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void CalcTvScreenSzL(); |
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/** |
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* Start monitoring the environment for changes to the TV aspect ratio |
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* and the Gallery window groups visiblity |
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*/ |
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void MonitorEnvironmentL(); |
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/** |
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* Stop monitoring the environment for changes to the TV aspect ratio |
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* and the Gallery window groups visiblity |
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*/ |
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void StopMonitoringEnvironment(); |
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private: // class member data |
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// Not Owned: The TV out observer |
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MGlxTvObserver& iTvObserver; |
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// Owned: The Window visibility monitor |
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CGlxWindowVisibilityMonitor* iWindowVisibilityMonitor; |
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// Owned: The TV connection monitor |
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CGlxTvConnectionMonitor* iTvConnectionMonitor; |
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// Size of the TV Out display size |
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TSize iSzInPixels; |
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// Owned: The central repository where TV display ratio is held. |
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CRepository* iCenRep; |
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// The implementation of the class, hidden from clients |
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class CGlxTvOutCenRepMonitor; |
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// Owned: Monitoring class for Tv Ratio Values |
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CGlxTvOutCenRepMonitor* iTvDisplayAspectRatioMonitor; |
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// The TV aspect ratio |
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TInt iAspectRatio; |
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}; |
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#endif // __GLXTV_H__ |