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/*
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* Copyright (c) 2002-2009 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:
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*
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*/
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// INCLUDE FILES
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#include <eiksbfrm.h>
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#include <eikscrlb.h>
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#include <eikrted.h>
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#include <txtrich.h>
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#include <barsread.h>
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#include <eikenv.h>
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#include <aknenv.h>
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#include <AknUtils.h>
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#include <aknconsts.h>
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#include <txtfrmat.h>
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#include <AknBidiTextUtils.h>
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#include <DRMEncryptor.rsg>
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#include "DRMEncryptorContainer.h"
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#include "DRMEncryptorImage.h"
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#include "DRMEncryptor.hrh"
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// CONSTANTS
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_LIT( KDRMEncryptorPanicCategory, "DRMEncryptor" );
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enum TDRMEncryptorPanic
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{
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EDRMEncryptorNotSupported = 0
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};
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// constructors
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CDRMEncryptorContainer::CDRMEncryptorContainer()
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{
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}
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void CDRMEncryptorContainer::ConstructL( const TRect& aRect )
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{
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CreateWindowL();
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// In case of APAC layout, use APAC font
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TAknLayoutId layoutId;
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iAvkonEnv->GetCurrentLayoutId( layoutId );
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if ( layoutId == EAknLayoutIdAPAC )
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{
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iFont = ApacPlain12();
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}
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else
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{
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iFont = LatinPlain12();
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}
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// Calculate various text positioning parameters
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iBaseLineDelta = iFont->HeightInPixels() * 4 / 3;
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TInt mainPaneWidth( aRect.iBr.iX - aRect.iTl.iX );
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TInt mainPaneHeight( aRect.iBr.iY - aRect.iTl.iY );
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// Line width is 87% of client rect, horizontal margins 13%
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iLineWidth = mainPaneWidth * 87 / 100;
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iTopBaseLineX = ( mainPaneWidth - iLineWidth ) / 2;
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// top margin is 6.5% of the client rect
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TInt topMargin = mainPaneHeight * 65 / 1000;
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iTopBaseLineY = topMargin + iFont->AscentInPixels();
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// minimum bottom margin is 3% of the client rect
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TInt bottomMargin = mainPaneHeight * 3 / 100;
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iLinesPerScreen =
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( mainPaneHeight - topMargin - bottomMargin ) / iBaseLineDelta;
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iTextAlign = CGraphicsContext::ELeft;
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// Every text line on screen is one entry in this array
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iText = new( ELeave ) CArrayPtrFlat<HBufC>( 20 );
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// Every image on screen is one entry in this array
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iImages = new( ELeave ) CArrayPtrFlat<CDRMEncryptorImage>( 1 );
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// This array contains indices for lines that start the subsequent
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// screens, for custom scrolling
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iScreenStarts = new( ELeave ) CArrayFixFlat<TInt>( 5 );
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// Initialisation: first screen starts at line 0.
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iScreenStarts->AppendL( 0 );
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// Read text and image items to be shown on the screen from a resource file.
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// real resource
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TResourceReader reader;
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iEikonEnv->CreateResourceReaderLC( reader, R_DRMENCRYPTOR_MAIN_TEXT );
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TInt numItems( reader.ReadInt16() );
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for ( TInt i = 0 ; i < numItems ; i++ )
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{
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TInt type = reader.ReadInt8();
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if ( type == EDRMEncryptorTextItem )
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{
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HBufC* text = iEikonEnv->AllocReadResourceLC( reader.ReadInt32() );
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SetTextL( *text );
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CleanupStack::PopAndDestroy(); // text
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}
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else if ( type == EDRMEncryptorImageItem )
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{
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TPtrC bitmapFile = reader.ReadTPtrC();
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TInt bitmapId = reader.ReadInt16();
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SetImageL( bitmapFile, bitmapId );
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}
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else
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{
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User::Panic( KDRMEncryptorPanicCategory, EDRMEncryptorNotSupported );
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}
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}
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CleanupStack::PopAndDestroy(); // reader
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UpdateScrollIndicatorL();
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SetRect( aRect );
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ActivateL();
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}
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// destructor
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CDRMEncryptorContainer::~CDRMEncryptorContainer()
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{
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delete iSBFrame;
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delete iScreenStarts;
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if ( iText )
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{
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iText->ResetAndDestroy();
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delete iText;
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}
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if ( iImages )
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{
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iImages->ResetAndDestroy();
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delete iImages;
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}
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}
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// -----------------------------------------------------------------------------
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// CDRMEncryptorContainer::Draw()
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// -----------------------------------------------------------------------------
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void CDRMEncryptorContainer::Draw( const TRect& aRect ) const
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{
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CWindowGc& gc = SystemGc();
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// clear the area
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gc.SetBrushColor( iEikonEnv->ControlColor( EColorWindowBackground, *this ) );
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gc.SetBrushStyle( CGraphicsContext::ESolidBrush );
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gc.Clear( aRect );
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// draw text
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gc.UseFont( iFont );
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// index of the first line on the screen in the text array
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TInt firstLine( (*iScreenStarts)[ iCurrentScreen ] );
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// index of the last line on the screen in the text array
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TInt lastLine( firstLine + iLinesPerScreen - 1 );
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gc.SetBrushStyle( CGraphicsContext::ENullBrush );
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TPoint position( iTopBaseLineX, iTopBaseLineY );
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TPoint topLeft;
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TSize rectSize( iLineWidth, iBaseLineDelta +iFont->DescentInPixels() );
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for ( TInt index = firstLine ;
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index < iText->Count() && index <= lastLine ;
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index++, position.iY += iBaseLineDelta )
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{
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HBufC* text = (*iText)[ index ];
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if ( text )
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{
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topLeft = TPoint( position.iX, position.iY-iBaseLineDelta );
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gc.DrawText( *text,
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TRect( topLeft, rectSize ),
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iBaseLineDelta,
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iTextAlign );
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}
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}
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gc.DiscardFont();
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// draw images
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for ( TInt i = 0 ; i < iImages->Count() ; i++ )
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{
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CDRMEncryptorImage* image = (*iImages)[ i ];
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// If part of the image resides in visible lines, draw it.
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if ( image->StartLine() <= lastLine && image->EndLine() >= firstLine )
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{
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position.SetXY( iTopBaseLineX, iTopBaseLineY );
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position.iY += ( image->StartLine() - firstLine ) * iBaseLineDelta;
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position.iY -= iBaseLineDelta - iFont->DescentInPixels();
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// Now iY is the top line of rectangle where the picture is
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// centered in.
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position.iY += ( (image->Lines()+1) * iBaseLineDelta -
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iFont->HeightInPixels() -
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image->HeightInPixels() ) / 2;
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// If text is right-aligned, also align images to the right.
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if ( iTextAlign == CGraphicsContext::ERight )
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{
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position.iX += ( iLineWidth - image->WidthInPixels() );
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}
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gc.BitBlt( position, image->Bitmap(), aRect );
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}
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}
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}
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// -----------------------------------------------------------------------------
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// CDRMEncryptorContainer::ActivateL()
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// -----------------------------------------------------------------------------
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void CDRMEncryptorContainer::ActivateL()
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{
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CCoeControl::ActivateL();
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UpdateScrollIndicatorL();
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}
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// -----------------------------------------------------------------------------
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// CDRMEncryptorContainer::SetTextL()
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// -----------------------------------------------------------------------------
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void CDRMEncryptorContainer::SetTextL( const TDesC& aText )
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{
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CArrayFix<TPtrC>* wrappedArray =
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new( ELeave ) CArrayFixFlat<TPtrC>( 10 );
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CleanupStack::PushL( wrappedArray );
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HBufC* dataToDestroy =
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AknBidiTextUtils::ConvertToVisualAndWrapToArrayL(
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aText, iLineWidth, *iFont, *wrappedArray
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);
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TInt numLines( wrappedArray->Count() );
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for ( TInt i = 0 ; i < numLines ; i++ )
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{
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HBufC* line = (*wrappedArray)[i].AllocLC();
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if(!line->Length())
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{
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iText->AppendL( NULL );
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CleanupStack::PopAndDestroy(); // line
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}
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else
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{
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iText->AppendL( line );
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CleanupStack::Pop(); // line
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}
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}
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iText->AppendL( NULL );
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// If the last char was newline, add one extra, since
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// wrapping automatically removes it.
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if ( aText[ aText.Length() - 1 ] == '\n' )
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{
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iText->AppendL( NULL );
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}
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CleanupStack::PopAndDestroy(); // wrappedArray
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delete dataToDestroy;
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// update screen scrolling info array
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TInt lastLine( iText->Count() - 1 );
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TInt screenStart( (*iScreenStarts)[ iScreenStarts->Count() - 1 ] );
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TBool firstNewScreenHandled( EFalse );
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while ( lastLine >= screenStart + iLinesPerScreen )
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{
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if ( !firstNewScreenHandled && iDoNotShowLastLineAgain )
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{
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screenStart++;
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firstNewScreenHandled = ETrue;
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}
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screenStart += iLinesPerScreen - 1;
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iScreenStarts->AppendL( screenStart );
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}
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// if text, last line is shown again in next screen
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iDoNotShowLastLineAgain = EFalse;
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}
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// -----------------------------------------------------------------------------
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// CDRMEncryptorContainer::SetImageL()
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// -----------------------------------------------------------------------------
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void CDRMEncryptorContainer::SetImageL( const TDesC& aFileName, TInt aBitmapId )
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{
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TInt firstLineOfImage( iText->Count() );
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CDRMEncryptorImage* image =
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CDRMEncryptorImage::NewLC( aFileName, aBitmapId, firstLineOfImage, iBaseLineDelta );
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// new lines to make room for the picture
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for ( TInt i = 0 ; i < image->Lines() ; i++ )
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{
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iText->AppendL( NULL );
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}
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iImages->AppendL( image );
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CleanupStack::Pop(); // image
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// update screen scrolling info array
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TInt lastLineOfImage( iText->Count() - 1 );
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TInt screenStart( (*iScreenStarts)[ iScreenStarts->Count() - 1 ] );
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TBool firstNewScreenHandled( EFalse );
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// If the image was not fully shown in the first screen,
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// start the next screen with the image.
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if ( firstLineOfImage < screenStart + iLinesPerScreen &&
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lastLineOfImage >= screenStart + iLinesPerScreen )
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{
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screenStart = firstLineOfImage;
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iScreenStarts->AppendL( screenStart );
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firstNewScreenHandled = ETrue;
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}
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while ( lastLineOfImage >= screenStart + iLinesPerScreen )
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{
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if ( !firstNewScreenHandled && iDoNotShowLastLineAgain )
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{
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screenStart++;
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firstNewScreenHandled = ETrue;
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}
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screenStart += iLinesPerScreen - 1;
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iScreenStarts->AppendL( screenStart );
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}
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if ( lastLineOfImage == screenStart + iLinesPerScreen - 1 )
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{
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iDoNotShowLastLineAgain = ETrue;
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}
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else
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{
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iDoNotShowLastLineAgain = EFalse;
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}
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}
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// -----------------------------------------------------------------------------
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// CDRMEncryptorContainer::OfferKeyEventL()
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// -----------------------------------------------------------------------------
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TKeyResponse CDRMEncryptorContainer::OfferKeyEventL( const TKeyEvent& aKeyEvent,
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TEventCode aType )
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{
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if ( aType == EEventKey && iScreenStarts->Count() > 1 )
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{
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switch ( aKeyEvent.iCode )
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{
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case EKeyUpArrow:
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if ( iCurrentScreen > 0 )
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{
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iCurrentScreen--;
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DrawNow();
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UpdateScrollIndicatorL();
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}
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break;
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case EKeyDownArrow:
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if ( iCurrentScreen < iScreenStarts->Count() - 1 )
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{
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iCurrentScreen++;
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DrawNow();
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UpdateScrollIndicatorL();
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}
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break;
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default:
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break;
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}
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}
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return EKeyWasConsumed;
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}
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// -----------------------------------------------------------------------------
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// CDRMEncryptorContainer::UpdateScrollIndicatorL()
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// -----------------------------------------------------------------------------
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void CDRMEncryptorContainer::UpdateScrollIndicatorL()
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{
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if ( iScreenStarts->Count() <= 1 )
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{
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return;
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}
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if ( !iSBFrame )
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{
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iSBFrame = new( ELeave ) CEikScrollBarFrame( this, NULL, ETrue );
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iSBFrame->SetScrollBarVisibilityL( CEikScrollBarFrame::EOff,
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CEikScrollBarFrame::EAuto );
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iSBFrame->SetTypeOfVScrollBar( CEikScrollBarFrame::EArrowHead );
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}
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TEikScrollBarModel hSbarModel;
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TEikScrollBarModel vSbarModel;
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vSbarModel.iThumbPosition = iCurrentScreen;
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vSbarModel.iScrollSpan = iScreenStarts->Count();
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vSbarModel.iThumbSpan = 1;
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TEikScrollBarFrameLayout layout;
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TRect rect( Rect() );
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iSBFrame->TileL( &hSbarModel, &vSbarModel, rect, rect, layout );
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iSBFrame->SetVFocusPosToThumbPos( vSbarModel.iThumbPosition );
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}
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// End of File
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