--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tvout/tvoutengine/inc/glxtv.h Mon May 03 12:31:32 2010 +0300
@@ -0,0 +1,186 @@
+/*
+* Copyright (c) 2008-2009 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: Handles & propogates UI state change notifications.
+*
+*/
+
+
+
+/**
+ * @internal reviewed 24/08/2007 by D Holland
+ */
+
+#ifndef __GLXTV_H__
+#define __GLXTV_H__
+
+// External Includes
+#include <e32def.h>
+#include <e32base.h>
+
+// Internal Includes
+#include <glxtvconstants.h>
+
+// Forward Declarations
+class MGlxTvObserver;
+class CGlxWindowVisibilityMonitor;
+class CGlxTvConnectionMonitor;
+class CRepository;
+
+// For window server visibility notifications
+class MGlxWindowVisibilityObserver
+ {
+public:
+ /**
+ * Handle changes to the application window visiblity
+ * Called when window visible state changes
+ * @param aChangeType The visibility change type
+ */
+ virtual void HandleWindowVisibilityChangedL( TTvChangeType aChangeType ) = 0;
+ };
+
+
+
+// For Tv connection notification
+class MGlxTvConnectionObserver
+ {
+public:
+ /**
+ * Handle TV connection state changes
+ */
+ virtual void HandleTvConnectionStatusChangedL( ) = 0;
+ };
+
+
+
+
+/**
+ * Class Description
+ * A class that handles and propagates UI change notifications
+ * @author Loughlin
+ */
+NONSHARABLE_CLASS (CGlxTv) : public CBase,
+ public MGlxWindowVisibilityObserver,
+ public MGlxTvConnectionObserver
+ {
+public:
+ /**
+ * Static Symbian 2 stage constructor.
+ * @param a TvObserver
+ */
+ IMPORT_C static CGlxTv* NewL( MGlxTvObserver& aTvObserver );
+
+ /**
+ * Destructor.
+ */
+ IMPORT_C ~CGlxTv();
+
+private:
+
+ /**
+ * Standard C++ constructor
+ * @param a TvObserver
+ */
+ CGlxTv(MGlxTvObserver& aTvObserver);
+
+ /*
+ * Symbian second stage construction
+ */
+ void ConstructL();
+
+public: // class public method
+
+ /**
+ * Get the current screen size
+ * @return the Screen size in pixels
+ */
+ IMPORT_C TSize ScreenSizeL() const;
+
+ /**
+ * Is the Analog TV Connected
+ * @return ETrue if active, otherwise EFalse
+ */
+ IMPORT_C TBool IsConnected() const;
+
+ /**
+ * Is the TV widescreen
+ * @return ETrue if widescreen, otherwise EFalse
+ */
+ IMPORT_C TBool IsWidescreen() const;
+
+ /**
+ * Is the HDMI TV Connected
+ * @return ETrue if active, otherwise EFalse
+ */
+ IMPORT_C TBool IsHDMIConnected() const;
+
+public: // from MGlxWindowVisibilityObserver
+ /**
+ * @ref MGlxWindowVisibilityObserver::HandleWindowVisibilityChangedL
+ */
+ void HandleWindowVisibilityChangedL( TTvChangeType aChangeType );
+
+
+public: // from MGlxTvConnectionObserver
+ /**
+ * @ref MGlxTvConnectionObserver::HandleTvConnectionStatusChangedL
+ */
+ void HandleTvConnectionStatusChangedL( );
+
+private: // new private methods
+ /**
+ * Retrive the TV Display Aspect Ratio and TV Setting
+ * Calculate the screen size from aspect ratio and TV type
+ */
+ void CalcTvScreenSzL();
+
+ /**
+ * Start monitoring the environment for changes to the TV aspect ratio
+ * and the Gallery window groups visiblity
+ */
+ void MonitorEnvironmentL();
+
+ /**
+ * Stop monitoring the environment for changes to the TV aspect ratio
+ * and the Gallery window groups visiblity
+ */
+ void StopMonitoringEnvironment();
+
+private: // class member data
+ // Not Owned: The TV out observer
+ MGlxTvObserver& iTvObserver;
+
+ // Owned: The Window visibility monitor
+ CGlxWindowVisibilityMonitor* iWindowVisibilityMonitor;
+
+ // Owned: The TV connection monitor
+ CGlxTvConnectionMonitor* iTvConnectionMonitor;
+
+ // Size of the TV Out display size
+ TSize iSzInPixels;
+
+ // Owned: The central repository where TV display ratio is held.
+ CRepository* iCenRep;
+
+ // The implementation of the class, hidden from clients
+ class CGlxTvOutCenRepMonitor;
+
+ // Owned: Monitoring class for Tv Ratio Values
+ CGlxTvOutCenRepMonitor* iTvDisplayAspectRatioMonitor;
+
+ // The TV aspect ratio
+ TInt iAspectRatio;
+ };
+
+
+#endif // __GLXTV_H__
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