photosgallery/slideshow/view/src/shwgesturecontrol.cpp
branchRCL_3
changeset 26 5b3385a43d68
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25:8e5f6eea9c9f 26:5b3385a43d68
       
     1 /*
       
     2 * Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies). 
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:    The pause handling control for the slideshow
       
    15  *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20  
       
    21 #include <alf/alfenv.h>
       
    22 #include <alf/alfdisplay.h>
       
    23 #include <alf/alfevent.h> 
       
    24 
       
    25 #include <glxlog.h>
       
    26 #include <glxtracer.h>
       
    27 #include <glxpanic.h>
       
    28 #include "shwslideshowengine.h"
       
    29 #include "shwgesturecontrol.h"
       
    30 
       
    31 using namespace GestureHelper;
       
    32 
       
    33 
       
    34 // -----------------------------------------------------------------------------
       
    35 // NewL.
       
    36 // -----------------------------------------------------------------------------
       
    37 //
       
    38 CShwGestureControl* CShwGestureControl::NewL( CAlfEnv& aEnv,CAlfDisplay& aDisplay)
       
    39 	{
       
    40 	TRACER("CShwGestureControl::NewL");
       
    41 	GLX_LOG_INFO( "CShwGestureControl::NewL" );
       
    42 	CShwGestureControl* self = new(ELeave)CShwGestureControl();
       
    43 	CleanupStack::PushL( self );
       
    44 	self->ConstructL( aEnv,aDisplay);
       
    45 	CleanupStack::Pop( self );
       
    46 	return self;
       
    47 	}
       
    48 
       
    49 // -----------------------------------------------------------------------------
       
    50 // ConstructL.
       
    51 // -----------------------------------------------------------------------------
       
    52 //
       
    53 void CShwGestureControl::ConstructL( CAlfEnv& aEnv,CAlfDisplay& aDisplay)
       
    54 	{
       
    55 	TRACER("CShwGestureControl::ConstructL");
       
    56 	GLX_LOG_INFO( "CShwGestureControl::ConstructL" );
       
    57 	CAlfControl::ConstructL(aEnv);    
       
    58     BindDisplay(aDisplay);
       
    59 	}
       
    60 
       
    61 // -----------------------------------------------------------------------------
       
    62 // CShwGestureControl.
       
    63 // -----------------------------------------------------------------------------
       
    64 //
       
    65 CShwGestureControl::CShwGestureControl( )
       
    66 	{
       
    67 	TRACER("CShwGestureControl::CShwGestureControl");
       
    68 	//no implementation
       
    69 	}
       
    70 
       
    71 // -----------------------------------------------------------------------------
       
    72 // ~CShwGestureControl.
       
    73 // -----------------------------------------------------------------------------
       
    74 //  
       
    75 CShwGestureControl::~CShwGestureControl()
       
    76     {
       
    77 	TRACER("CShwGestureControl::~CShwGestureControl");
       
    78 	iObservers.ResetAndDestroy();
       
    79     }
       
    80 
       
    81 // -----------------------------------------------------------------------------
       
    82 // AddObserverL
       
    83 // -----------------------------------------------------------------------------
       
    84 //
       
    85 void CShwGestureControl::AddObserverL(MShwGestureObserver* aObserver) 
       
    86     {
       
    87     TRACER("CShwGestureControl::AddObserverL");
       
    88     GLX_LOG_INFO("CShwGestureControl::AddObserverL");
       
    89     __ASSERT_DEBUG( NULL != aObserver , Panic(EGlxPanicNullPointer)); 
       
    90     
       
    91     // dont want to observe the same thing again and again.
       
    92     if (iObservers.Find(aObserver) == KErrNotFound)
       
    93         {
       
    94         iObservers.AppendL(aObserver);
       
    95         GLX_LOG_INFO1("CShwGestureControl::AddObserverL  Observer Added "
       
    96                 "observer count now [%d]", iObservers.Count());
       
    97         }
       
    98     }
       
    99 
       
   100 // -----------------------------------------------------------------------------
       
   101 // RemoveObserver
       
   102 // -----------------------------------------------------------------------------
       
   103 //
       
   104 void CShwGestureControl::RemoveObserver(MShwGestureObserver* aObserver)
       
   105     {
       
   106     TRACER("CShwGestureControl::RemoveObserver");
       
   107     GLX_LOG_INFO("CShwGestureControl::RemoveObserver");
       
   108     TInt observerPosition = iObservers.Find(aObserver);
       
   109     if (observerPosition != KErrNotFound)
       
   110         {
       
   111         iObservers.Remove(observerPosition);
       
   112         GLX_LOG_INFO1("CShwGestureControl::RemoveObserver  One Observer removed "
       
   113                 "observer count now [%d]", iObservers.Count());
       
   114         }
       
   115     }
       
   116 
       
   117 // -----------------------------------------------------------------------------
       
   118 // HandleGestureL.
       
   119 // -----------------------------------------------------------------------------
       
   120 //
       
   121 void CShwGestureControl::HandleGestureL( const GestureHelper::MGestureEvent& aEvent )
       
   122 	{
       
   123 	TRACER("CShwGestureControl::HandleGestureL");
       
   124 	GLX_LOG_INFO1( "CShwGestureControl::HandleGestureL(%d)", aEvent.Code( MGestureEvent::EAxisBoth ));
       
   125 
       
   126 	// No one is listening, Do not resolve the events for the listeners 
       
   127 	if (iObservers.Count() > 0)
       
   128 	    {
       
   129         MShwGestureObserver::TShwGestureEventType aType  = MShwGestureObserver::ENoEvent;
       
   130 		switch ( aEvent.Code( MGestureEvent::EAxisBoth ) )
       
   131 		    {
       
   132 	    	case EGestureSwipeLeft:
       
   133 	    		{
       
   134 	    		aType  = MShwGestureObserver::ESwipeLeft ;
       
   135 	    		break;
       
   136 	    		}
       
   137 	    	case EGestureSwipeRight:  
       
   138 	    		{
       
   139 	    		aType  = MShwGestureObserver::ESwipeRight;
       
   140 	    		break;
       
   141 	    		}
       
   142 		    case EGestureTap:
       
   143 		    	{
       
   144 		    	aType  = MShwGestureObserver::ETapEvent;
       
   145 		    	break;
       
   146 		    	}
       
   147 		    default: 
       
   148 		    	{
       
   149 		    	// we are interested in only 
       
   150 		    	// swipe left(EGestureSwipeLeft) 
       
   151 		    	// swipe right(EGestureSwipeRight)
       
   152 		    	// and tap events
       
   153 		    	// we wont be handling any other case yet. 
       
   154 		    	break;
       
   155 		    	}
       
   156 		    }
       
   157         for (TInt index = 0 ; index < iObservers.Count() ; index ++)
       
   158             {
       
   159             if (MShwGestureObserver::ENoEvent != aType )
       
   160                 {
       
   161                 iObservers[index]->HandleShwGestureEventL(aType);
       
   162                 }
       
   163             }
       
   164 	    }
       
   165 	}
       
   166 
       
   167 //end of file
       
   168