phonebookui/Phonebook2/UIControls/src/CPbk2ThumbnailPopupControl.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 10:12:17 +0200
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permissions -rw-r--r--
Revision: 201003 Kit: 201005
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/*
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* Copyright (c) 2005-2007 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:  Phonebook 2 thumbnail popup control.
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*
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*/
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// INCLUDE FILES
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#include "CPbk2ThumbnailPopupControl.h"
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// System includes
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#include <eiklbx.h>
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#include <aknlayoutscalable_apps.cdl.h>
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#include <aknlayoutscalable_avkon.cdl.h>
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#include <layoutmetadata.cdl.h>
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#include <AknsDrawUtils.h>
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#include <AknsBasicBackgroundControlContext.h>
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#include <eikenv.h>
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#include <eikappui.h>
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#include <AknUtils.h>
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// Debugging headers
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#include <Pbk2Debug.h>
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// --------------------------------------------------------------------------
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//
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// --------------------------------------------------------------------------
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//
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CPbk2ThumbnailPopupControl::CPbk2ThumbnailPopupControl( TPbk2ThumbnailLocation aThumbnailLocation,
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                                                        const CEikListBox* aListBox )
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    : iThumbnailLocation( aThumbnailLocation ),
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      iListBox( aListBox )
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    {
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    }
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// --------------------------------------------------------------------------
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//
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// --------------------------------------------------------------------------
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//
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CPbk2ThumbnailPopupControl::~CPbk2ThumbnailPopupControl()
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    {
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    AknsUtils::DeregisterControlPosition( this );
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    CEikonEnv::Static()->EikAppUi()->RemoveFromStack( this );
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    delete iBitmap;
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    delete iBgContext;
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    }
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// --------------------------------------------------------------------------
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//
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// --------------------------------------------------------------------------
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//
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CPbk2ThumbnailPopupControl* CPbk2ThumbnailPopupControl::NewL(
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        TPbk2ThumbnailLocation aThumbnailLocation,
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        const CEikListBox* aListBox )
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    {
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    CPbk2ThumbnailPopupControl* self =
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        new( ELeave )CPbk2ThumbnailPopupControl( aThumbnailLocation, aListBox );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop( self );
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    return self;
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    }
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// --------------------------------------------------------------------------
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//
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// --------------------------------------------------------------------------
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//
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void CPbk2ThumbnailPopupControl::ConstructL()
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    {
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    SetupSkinContext(); // we need to be able to clear the background using skin
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    CreateWindowL( iListBox );
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    MakeVisible( EFalse );
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    SetFocusing( EFalse );
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    SetPointerCapture( EFalse );
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    // add to stack to get resource change notifications,
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    // we must refuse focus and all input to prevent breaking the UI below
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    CEikonEnv::Static()->EikAppUi()->AddToStackL(
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            this,
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            ECoeStackPriorityDefault,
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            ECoeStackFlagRefusesAllKeys|ECoeStackFlagRefusesFocus );
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    }
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// --------------------------------------------------------------------------
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//
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// --------------------------------------------------------------------------
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//
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void CPbk2ThumbnailPopupControl::SetBitmap(CFbsBitmap* aBitmap)
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    {
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    if( aBitmap != iBitmap )
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        {
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        delete iBitmap;
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        iBitmap = aBitmap;
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        }
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    }
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// --------------------------------------------------------------------------
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//
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// --------------------------------------------------------------------------
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//
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void CPbk2ThumbnailPopupControl::SetThumbnailBackg( CFbsBitmap* aThumbBackg,
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                                                    CFbsBitmap* aThumbBackgMask )
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    {
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    iThumbSize=aThumbBackg->SizeInPixels();
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    iThumbBackg = aThumbBackg;
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    iThumbBackgMask = aThumbBackgMask;
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    }
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// --------------------------------------------------------------------------
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//
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// --------------------------------------------------------------------------
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//
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void CPbk2ThumbnailPopupControl::MakeControlVisible(TBool aVisible)
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    {
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    // hide the thumbnail if the highlighted listbox item isn't visible anymore
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    // (in ELocationUpDown mode the thumbnail is always visible)
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    if( iThumbnailLocation == ELocationHanging &&
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        !iListBox->View()->ItemIsVisible( iListBox->CurrentItemIndex() ) )
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        {
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        aVisible = EFalse;
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        }
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    if( aVisible )
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        {
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        Layout();
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        ActivateL();
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        }
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    MakeVisible( aVisible );
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    DrawDeferred(); // won't draw if invisible (or inactive)
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    }
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// --------------------------------------------------------------------------
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//
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// --------------------------------------------------------------------------
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//
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void CPbk2ThumbnailPopupControl::Draw( const TRect& /*aRect*/ ) const
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    {
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    CWindowGc& gc = SystemGc();
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    if ( iBitmap )
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        {
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        const TInt orientation( Layout_Meta_Data::IsLandscapeOrientation() ? 0 : 1 );
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        TAknLayoutRect thumbBgLayoutRect, thumbLayoutRect;
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        thumbBgLayoutRect.LayoutRect(
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                Rect(),
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                AknLayoutScalable_Apps::bg_popup_preview_window_pane_cp01( orientation ) );
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        thumbLayoutRect.LayoutRect(
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                Rect(),
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                AknLayoutScalable_Apps::popup_phob_thumbnail2_window_g1( orientation ) );
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        AknsDrawUtils::BackgroundBetweenRects( AknsUtils::SkinInstance(), iBgContext, this, gc, Rect(), thumbLayoutRect.Rect() );
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        thumbBgLayoutRect.DrawImage( gc, iThumbBackg, iThumbBackgMask );
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        thumbLayoutRect.DrawImage( gc, iBitmap, NULL );
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        }
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    else
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        {
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        AknsDrawUtils::Background( AknsUtils::SkinInstance(), iBgContext, this, gc, Rect() );
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        }
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    }
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// --------------------------------------------------------------------------
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//
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// --------------------------------------------------------------------------
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//
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inline void CPbk2ThumbnailPopupControl::Layout()
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    {
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    // calculate indentation (0.5u) in pixels (aid_value_unit2 is a 10ux10u rectangle)
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    TAknWindowComponentLayout unit( AknLayoutScalable_Avkon::aid_value_unit2() );
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    const TInt indent( unit.LayoutLine().iW / 10 / 2 ); // 0.5u
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    // background bitmap was already sized according to the thumbnail size and LAF specification
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    // -> set window size to match the size of the bg bitmap
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    TSize thumbWindowSize;
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    if (iThumbBackg)
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        {
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        thumbWindowSize= iThumbSize;    
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        }
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    // calculate the thumbnail window X co-ordinate using listbox layout
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    TAknLayoutRect listPaneLayoutRect; // for horizontal positioning
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    listPaneLayoutRect.LayoutRect( iListBox->View()->ViewRect(), AknLayoutScalable_Avkon::list_gen_pane( 0 ) );
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    // window position:
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    // normal   - right side of the listbox -(thubnail window idth + indent)
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    // mirrored - left side of the listbox + indent
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    TPoint thumbWindowPt( Layout_Meta_Data::IsMirrored() ?
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                            listPaneLayoutRect.Rect().iTl.iX + indent :
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                            listPaneLayoutRect.Rect().iBr.iX - (indent + thumbWindowSize.iWidth),
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                          0 );
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    // thumbnail Y co-ordinate depends on the listbox focus position
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    const TPoint focusPt( iListBox->View()->ItemPos( iListBox->CurrentItemIndex() ) );
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    const TInt yMax( iListBox->View()->ViewRect().iBr.iY );
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    if ( iThumbnailLocation == ELocationHanging )
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    // thumbnail moves with the focus
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    	{
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    	// bottom Y of the focused listbox item
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        const TInt focusBottom( focusPt.iY + iListBox->ItemHeight() );
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        // place the thumbnail below the focus if there is enough space
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        if ( yMax - focusBottom >= thumbWindowSize.iHeight + indent )
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            {
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            thumbWindowPt.iY = focusBottom - iListBox->ItemHeight()/5;
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            }
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        else // otherwise place it above the focus
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            {
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            thumbWindowPt.iY = focusPt.iY + iListBox->ItemHeight()/4 - thumbWindowSize.iHeight;
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            }
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    	}
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    else if ( iThumbnailLocation == ELocationUpDown )
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    // thumbnail is placed at the top or bottom corner
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    	{
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    	thumbWindowPt.iY = indent; // default to top
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        // thumbnail is always at the top if focus is not visible
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    	if( iListBox->View()->ItemIsVisible( iListBox->CurrentItemIndex() ) )
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    	    {
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        	const TRect focusRect( focusPt, iListBox->View()->ItemSize() );
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        	const TRect thumbWindowRect( thumbWindowPt, thumbWindowSize );
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        	// place the thumbnail at the bottom if it overlaps the focus
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        	if( thumbWindowRect.Intersects( focusRect ) )
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        		{
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        		thumbWindowPt.iY = yMax - (indent + thumbWindowSize.iHeight);
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        		}
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            }
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    	}
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    SetExtent( thumbWindowPt, thumbWindowSize );
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    AknsUtils::RegisterControlPosition( this );
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    }
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// --------------------------------------------------------------------------
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//
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// --------------------------------------------------------------------------
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//
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void CPbk2ThumbnailPopupControl::HandleResourceChange(TInt aType)
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	{
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	CCoeControl::HandleResourceChange( aType );
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	if( aType == KEikDynamicLayoutVariantSwitch ||
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        aType == KAknsMessageSkinChange )
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		{
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		SetupSkinContext();
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		// This control may be invalid when it's invisible
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		// e.g. iThumbBackg,iThumbBackgMaksk may be destroyed
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		if ( IsVisible() )
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			{	
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			Layout();
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			}
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		}
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	}
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// ---------------------------------------------------------
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//
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// ---------------------------------------------------------
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//
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void CPbk2ThumbnailPopupControl::SetupSkinContext()
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    {
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    delete iBgContext;
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    iBgContext = NULL;
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    iBgContext = CAknsBasicBackgroundControlContext::NewL( KAknsIIDQsnBgAreaMain, iListBox->Rect(), ETrue );
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    iBgContext->SetParentPos( iListBox->PositionRelativeToScreen() );
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    }
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//  End of File