videofeeds/livetvutils/src/CIptvLiveUIImageHandler.cpp
changeset 0 96612d01cf9f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videofeeds/livetvutils/src/CIptvLiveUIImageHandler.cpp	Mon Jan 18 20:21:12 2010 +0200
@@ -0,0 +1,317 @@
+/*
+* Copyright (c) 2002-2004 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:    Offers interface for loading and converting images.*
+*/
+
+
+
+
+// INCLUDE FILES
+#include <gulicon.h>					// CGulIcon
+#include <imageconversion.h>			// CImageDecoder
+#include <AknIconArray.h>				// CAknIconArray
+#include "IptvLiveLogger.h"				// Live TV logging macros
+#include <AknIconUtils.h>				// AknIconUtils
+#include <AknsUtils.h>
+
+#include "CIptvLiveUIImageHandler.h"	// CIptvLiveUIImageHandler
+#include "MIptvLiveUIImageObserver.h"	// MIptvLiveUIImageObserver
+
+
+// FORWARD DECLARATIONS
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// ---------------------------------------------------------
+// CIptvLiveUIImageHandler::NewL
+// Two-phased constructor.
+// ---------------------------------------------------------
+//
+EXPORT_C CIptvLiveUIImageHandler* CIptvLiveUIImageHandler::NewL( 
+										MIptvLiveUIImageObserver& aObserver )
+    {
+    LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::NewL() in"));
+    CIptvLiveUIImageHandler* self = 
+						new ( ELeave ) CIptvLiveUIImageHandler( aObserver );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// CIptvLiveUIImageHandler::ConstructL()
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CIptvLiveUIImageHandler::ConstructL()
+    {
+    LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::ConstructL() in"));
+	User::LeaveIfError( iFs.Connect() );
+    LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::ConstructL() out"));
+    }
+    
+// -----------------------------------------------------------------------------
+// CIptvLiveUIImageHandler::CIptvLiveUIImageHandler()
+// C++ default constructor can NOT contain any code, that might leave.
+// -----------------------------------------------------------------------------
+//
+CIptvLiveUIImageHandler::CIptvLiveUIImageHandler( 
+										MIptvLiveUIImageObserver& aObserver ) 
+	: CActive( EPriorityNormal ), iObserver( &aObserver ), 
+	iImageDecoder( NULL ), iBitmap( NULL )
+    {
+    LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::CIptvLiveUIImageHandler() in"));
+    CActiveScheduler::Add( this );
+    LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::CIptvLiveUIImageHandler() out"));
+    }
+
+// -----------------------------------------------------------------------------
+// CIptvLiveUIImageHandler::~CIptvLiveUIImageHandler()
+// Destructor.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CIptvLiveUIImageHandler::~CIptvLiveUIImageHandler()
+    {
+    LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::~CIptvLiveUIImageHandler() in"));
+    Cancel();
+    iObserver = NULL;
+	delete iImageDecoder;
+	delete iBitmap;
+	iFs.Close();
+    LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::~CIptvLiveUIImageHandler() out"));    	
+    }
+
+// -----------------------------------------------------------------------------
+// CIptvLiveUIImageHandler::LoadImageL(). Asynchronous, 
+// MIptvLiveUIImageObserver::ImageReadyL() when loading and converting is complete.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CIptvLiveUIImageHandler::LoadImageL( const TDesC& aFilePath )
+    {
+    LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::LoadImageL() in"));
+	if ( IsActive() ) 
+		{
+		LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::LoadImageL() IS ACTIVE, leave with KErrInUse"));
+		User::Leave( KErrInUse );
+		}
+	if ( iImageDecoder ) 
+		{
+		iImageDecoder->Cancel();
+		delete iImageDecoder;
+		iImageDecoder = NULL;
+		}
+	// Create new image decoder 
+	iImageDecoder = CImageDecoder::FileNewL( iFs, aFilePath );
+
+	// Create bitmap
+	if ( iBitmap ) 
+		{
+		delete iBitmap;
+		iBitmap = NULL;
+		}
+	TFrameInfo info = iImageDecoder->FrameInfo();
+	iBitmap = new ( ELeave ) CFbsBitmap;
+	TInt err = iBitmap->Create( info.iOverallSizeInPixels, 
+										 info.iFrameDisplayMode );
+	if ( err == KErrNone )
+		{
+		// Start converting the image
+		iImageDecoder->Convert( &iStatus, *iBitmap );
+		SetActive();	
+		}
+	else
+		{
+		delete iImageDecoder;
+		iImageDecoder = NULL;
+		delete iBitmap;
+		iBitmap = NULL;
+		User::Leave( err );
+		}
+	
+    LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::LoadImageL() out"));
+   	}
+    
+// -----------------------------------------------------------------------------
+// CIptvImageLoader::LoadIconL
+// Loads icon to the given array.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CIptvLiveUIImageHandler::LoadIconL( CAknIconArray* aIcons, 
+									const TInt aIconIndex, 
+                                    const TInt aMaskIndex, const TSize& aIconSize,
+                                    const TDesC& aMifFileName, TBool aInsert )
+    {
+	LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::LoadIconL() in") );
+    CFbsBitmap* bitmap = NULL;
+    CFbsBitmap* mask = NULL;
+        
+    AknIconUtils::CreateIconLC( bitmap, mask, aMifFileName, 
+                                aIconIndex, aMaskIndex );
+
+    CGulIcon* icon = CGulIcon::NewL( bitmap, mask );
+    CleanupStack::PushL( icon );
+
+    // ownership of bitmap and mask transferred to icon
+    icon->SetBitmapsOwnedExternally( EFalse );
+
+    TInt err = AknIconUtils::SetSize( bitmap, aIconSize );
+	if ( err != KErrNone ) 
+		{
+		LIVE_TV_TRACE2(_L("CIptvLiveUIImageHandler::LoadIconL() AknIconUtils::SetSize() FAILED: %d"), err);
+		}
+
+    if ( aInsert && aIcons )
+        {
+        aIcons->InsertL( 0, icon );
+        }
+    else 
+        {
+		if ( aIcons ) 
+			{
+			aIcons->AppendL( icon );	
+			}
+        }
+
+    CleanupStack::Pop( icon );  
+    CleanupStack::Pop( mask );
+    CleanupStack::Pop( bitmap );
+	LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::LoadIconL() out") );
+    }   
+
+// -----------------------------------------------------------------------------
+// Loads color-customized icon to the given array.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CIptvLiveUIImageHandler::LoadIconL( CAknIconArray* aIcons, 
+                                    const TAknsItemID aItemId, 
+									const TInt aIconIndex, 
+                                    const TInt aMaskIndex, 
+                                    const TSize& aIconSize,
+                                    const TDesC& aMifFileName, 
+                                    TBool aInsert
+                                    )
+    {
+	LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::LoadIconL() in") );
+        
+    MAknsSkinInstance* skin = AknsUtils::SkinInstance();    
+            
+    CFbsBitmap* bitmap = NULL;
+    CFbsBitmap* mask = NULL;
+    TRgb defaultColour( KRgbWhite );
+    // Color is not updated if it not found from the skin
+    AknsUtils::GetCachedColor( skin,
+              defaultColour,
+              KAknsIIDQsnIconColors,
+              EAknsCIQsnIconColorsCG13 );
+    
+    AknsUtils::CreateColorIconLC( skin,
+              aItemId,
+              KAknsIIDQsnIconColors,
+              EAknsCIQsnIconColorsCG13,
+              bitmap,
+              mask,
+              aMifFileName,
+              aIconIndex,
+              aMaskIndex,
+              defaultColour,
+              aIconSize,
+              EAspectRatioPreserved );
+        
+    CGulIcon* icon = NULL;
+    icon = CGulIcon::NewL( bitmap, mask );
+    
+    CleanupStack::Pop( 2 ); // mask, bitmap        
+    // ownership of bitmap and mask transferred to icon
+    icon->SetBitmapsOwnedExternally( EFalse );         
+    
+    CleanupStack::PushL( icon );    
+
+    if ( aInsert && aIcons )
+        {
+        aIcons->InsertL( 0, icon );
+        }
+    else 
+        {
+		if ( aIcons ) 
+			{
+			aIcons->AppendL( icon );	
+			}
+        }
+
+    CleanupStack::Pop( icon );  
+	LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::LoadIconL() out") );
+    }   
+
+// -----------------------------------------------------------------------------
+// CIptvLiveUIImageHandler::RunL()
+// From CActive
+// -----------------------------------------------------------------------------
+//
+void CIptvLiveUIImageHandler::RunL()
+    {
+    LIVE_TV_TRACE2(_L("CIptvLiveUIImageHandler::RunL() in, iStatus.Int() = %d"), iStatus.Int());
+	if ( iStatus.Int() == KErrNone ) 
+		{
+		// Image conversion ok
+		iObserver->ImageReadyL( KErrNone, *iBitmap );
+		}
+	else 
+		{
+		// There was some error, notify observer
+		iObserver->ImageReadyL( iStatus.Int(), *iBitmap );
+		}
+	// free image file and bitmap
+	delete iImageDecoder;
+	iImageDecoder = NULL;
+	delete iBitmap;
+	iBitmap = NULL;
+	LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::RunL() out"));
+    }
+
+// -----------------------------------------------------------------------------
+// CIptvLiveUIImageHandler::RunError()
+// From CActive
+// -----------------------------------------------------------------------------
+//
+TInt CIptvLiveUIImageHandler::RunError( TInt /*aError*/ )
+    {
+    LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::RunError() in"));
+	// free image file and bitmap
+	delete iImageDecoder;
+	iImageDecoder = NULL;
+	delete iBitmap;
+	iBitmap = NULL;
+	LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::RunError() out"));
+    return KErrNone;
+    }
+    
+// -----------------------------------------------------------------------------
+// CIptvLiveUIImageHandler::DoCancel()
+// From CActive
+// -----------------------------------------------------------------------------
+//
+void CIptvLiveUIImageHandler::DoCancel()
+    {
+    LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::DoCancel() in"));
+	if ( iImageDecoder ) 
+		{
+		iImageDecoder->Cancel();	
+		}
+	delete iImageDecoder;
+	iImageDecoder = NULL;
+    LIVE_TV_TRACE1(_L("CIptvLiveUIImageHandler::DoCancel() out"));
+    }
+
+// End of File