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:    Control to create a black background for the slideshow

    15 *

    16 */

    17 

    18 

    19 

    20 #include "shwslideshowblackoutcontrol.h"

    21 

    22 #include <uiacceltk/huienv.h> 

    23 #include <uiacceltk/huidisplay.h>

    24 #include <uiacceltk/huiImageVisual.h>

    25 #include <uiacceltk/huiAnchorLayout.h>

    26 

    27 #include "glxhuiutility.h"

    28 

    29 namespace

    30 	{

    31 	/**

    32 	 * Time to complete blackout

    33 	 */

    34 	const TInt KShwBlackoutDelay = 0;

    35 	/**

    36 	 * Opacity value - fully opaque

    37 	 */

    38 	const TInt KShwOpaque = 1;

    39 	/**

    40 	 * Opacity value - transparent

    41 	 */

    42 	const TInt KShwTransparent = 0;

    43 	const TInt KShwScreenSizeMultiplier = 3;

    44 	const TInt KShwOrigin = 0;

    45 	}

    46 

    47 // -----------------------------------------------------------------------------

    48 // Constructor

    49 // -----------------------------------------------------------------------------

    50 //

    51 CShwBlackoutControl* CShwBlackoutControl::NewL( CHuiEnv& aEnv,

    52 	CHuiDisplay& aDisplay )

    53     {

    54     CShwBlackoutControl* self = new( ELeave )

    55         CShwBlackoutControl( aEnv, aDisplay );

    56     CleanupStack::PushL( self );

    57     self->ConstructL();

    58     CleanupStack::Pop( self );

    59     return self;

    60     }

    61 

    62 // -----------------------------------------------------------------------------

    63 // Constructor

    64 // -----------------------------------------------------------------------------

    65 //

    66 CShwBlackoutControl::CShwBlackoutControl( CHuiEnv& aEnv, CHuiDisplay& aDisplay )

    67         : CHuiControl( aEnv ), iDisplay( aDisplay )

    68     {    

    69     BindDisplay( aDisplay );

    70     }

    71 

    72 // -----------------------------------------------------------------------------

    73 // ConstructL

    74 // -----------------------------------------------------------------------------

    75 //

    76 void CShwBlackoutControl::ConstructL()

    77     {

    78     // Create the black background to fade out the rest of the screen

    79 	iBlackoutTexture = CHuiTexture::NewL();

    80 	CGlxHuiUtility::UploadFlatColourToTextureL( KRgbBlack, iBlackoutTexture );

    81 

    82 	iBlackoutLayout = CHuiAnchorLayout::AddNewL( *this );

    83 	iBlackoutLayout->SetClipping( EFalse );

    84 

    85 	iBlackoutImageVisual = CHuiImageVisual::AddNewL( *this, iBlackoutLayout );

    86 	iBlackoutImageVisual->SetImage( THuiImage( *iBlackoutTexture ) );

    87 	iBlackoutImageVisual->iOpacity.Set( KShwTransparent );

    88 

    89 	iBlackoutImageVisual->SetFlag( EHuiVisualFlagManualLayout );

    90 	TSize displaySize = iDisplay.Size();

    91 	iBlackoutImageVisual->SetSize( THuiRealSize(

    92 	    displaySize.iWidth * KShwScreenSizeMultiplier,

    93 		displaySize.iHeight * KShwScreenSizeMultiplier ));

    94 

    95 	iBlackoutImageVisual->SetPos( THuiRealPoint( KShwOrigin, KShwOrigin) );

    96     }

    97 

    98 // -----------------------------------------------------------------------------

    99 // Destructor

   100 // -----------------------------------------------------------------------------

   101 //

   102 CShwBlackoutControl::~CShwBlackoutControl()

   103     {   

   104     delete iBlackoutTexture;

   105     }

   106 	

   107 // -----------------------------------------------------------------------------

   108 // ActivateL

   109 // -----------------------------------------------------------------------------

   110 //

   111 void CShwBlackoutControl::ActivateL()

   112     {

   113     if ( !iActivated )

   114         {        

   115         iBlackoutImageVisual->iOpacity.Set( KShwOpaque, KShwBlackoutDelay );

   116         iActivated = ETrue;

   117         }

   118     }

   119     

   120 // -----------------------------------------------------------------------------

   121 // Deactivate

   122 // -----------------------------------------------------------------------------

   123 //

   124 void CShwBlackoutControl::Deactivate()

   125     {

   126     if ( iActivated )

   127         {

   128         iBlackoutImageVisual->iOpacity.Set( KShwTransparent,

   129             KShwBlackoutDelay );

   130         iActivated = EFalse;

   131         }

   132     }