author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 12 Mar 2010 15:41:49 +0200 | |
branch | RCL_3 |
changeset 11 | ff572dfe6d86 |
parent 2 | 08c6ee43b396 |
child 17 | b8fae6b8a148 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2002-2006 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: Text scrolling functionality. |
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* |
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*/ |
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|
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|
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// INCLUDE FILES |
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#include <AknUtils.h> |
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#include <AknsDrawUtils.h> |
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#include <AknBidiTextUtils.h> |
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|
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#include "xnnewstickercontrol.h" |
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#include "xnnewstickeradapter.h" |
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// CONSTANTS |
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// ============================ MEMBER FUNCTIONS =============================== |
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// ----------------------------------------------------------------------------- |
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// CXnNewstickerControl::CXnNewstickerControl |
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// C++ default constructor can NOT contain any code, that |
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// might leave. |
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// ----------------------------------------------------------------------------- |
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// |
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CXnNewstickerControl::CXnNewstickerControl( CXnNewstickerAdapter* aAdapter ) : |
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iCurrentTitleIndex( -1 ), |
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iAdapter( aAdapter ) |
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{ |
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} |
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// ----------------------------------------------------------------------------- |
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// CXnNewstickerControl::ConstructL |
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// Symbian 2nd phase constructor can leave. |
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// ----------------------------------------------------------------------------- |
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// |
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void CXnNewstickerControl::ConstructL() |
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{ |
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} |
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// ----------------------------------------------------------------------------- |
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// CXnNewstickerControl::NewL |
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// Two-phased constructor. |
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// ----------------------------------------------------------------------------- |
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// |
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CXnNewstickerControl* CXnNewstickerControl::NewL( CXnNewstickerAdapter* aAdapter ) |
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{ |
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CXnNewstickerControl* self = new(ELeave)CXnNewstickerControl( aAdapter ); |
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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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// CXnNewstickerControl::~CXnNewstickerControl() |
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// Destructor. |
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// ----------------------------------------------------------------------------- |
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// |
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CXnNewstickerControl::~CXnNewstickerControl() |
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{ |
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iTitleTexts.ResetAndDestroy(); |
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} |
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// ----------------------------------------------------------------------------- |
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// CXnNewstickerControl::AppendTitleL |
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// (other items were commented in a header). |
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// ----------------------------------------------------------------------------- |
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// |
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void CXnNewstickerControl::AppendTitleL( const TDesC& aTitle ) |
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{ |
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HBufC* title = aTitle.AllocLC(); |
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iTitleTexts.AppendL( title ); |
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CleanupStack::Pop( title ); |
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} |
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// ----------------------------------------------------------------------------- |
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// CXnNewstickerControl::InsertTitleL |
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// ----------------------------------------------------------------------------- |
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// |
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void CXnNewstickerControl::InsertTitleL( const TDesC& aTitle, TInt aIndex ) |
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{ |
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if( aIndex >= 0 && aIndex < iTitleTexts.Count() ) |
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{ |
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HBufC* title = aTitle.AllocLC(); |
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iTitleTexts.InsertL( title, aIndex ); |
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CleanupStack::Pop( title ); |
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} |
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else |
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{ |
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AppendTitleL( aTitle ); |
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} |
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} |
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107 |
|
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// ----------------------------------------------------------------------------- |
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// CXnNewstickerControl::UpdateTitleL |
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// ----------------------------------------------------------------------------- |
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// |
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void CXnNewstickerControl::UpdateTitleL( const TDesC& aTitle, TInt aIndex ) |
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{ |
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if( aIndex >= 0 && aIndex < iTitleTexts.Count() ) |
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{ |
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HBufC* oldTitle = iTitleTexts[ aIndex ]; |
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iTitleTexts.Remove( aIndex ); |
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118 |
|
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delete oldTitle; |
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oldTitle = NULL; |
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121 |
|
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HBufC* title = aTitle.AllocLC(); |
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iTitleTexts.InsertL( title, aIndex ); |
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CleanupStack::Pop( title ); |
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} |
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else |
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{ |
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AppendTitleL( aTitle ); |
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} |
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} |
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131 |
|
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// ----------------------------------------------------------------------------- |
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// CXnNewstickerControl::DeleteTitle |
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// ----------------------------------------------------------------------------- |
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// |
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void CXnNewstickerControl::DeleteTitleL( TInt aIndex ) |
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{ |
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TInt count = iTitleTexts.Count(); |
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139 |
|
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if( aIndex >= 0 && aIndex < count ) |
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141 |
{ |
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// If the last item will be deleted |
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if(count == 1) |
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{ |
2
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iAdapter->Stop(); |
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iCurrentTitleIndex = -1; |
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} |
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148 |
|
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UpdateTitleL( KNullDesC, aIndex ); |
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} |
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} |
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152 |
|
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// ----------------------------------------------------------------------------- |
2
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// CXnNewstickerControl::CurrentTitleIndex |
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// ----------------------------------------------------------------------------- |
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// |
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TInt CXnNewstickerControl::CurrentTitleIndex() const |
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{ |
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return iCurrentTitleIndex; |
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} |
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161 |
|
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// ----------------------------------------------------------------------------- |
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// CXnNewstickerControl::Title |
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// ----------------------------------------------------------------------------- |
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// |
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const TDesC& CXnNewstickerControl::Title( TInt aIndex ) const |
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{ |
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if( aIndex >= 0 && aIndex < iTitleTexts.Count() ) |
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{ |
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return *iTitleTexts[ aIndex ]; |
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} |
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172 |
|
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return KNullDesC; |
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} |
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175 |
|
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// ----------------------------------------------------------------------------- |
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// CXnNewstickerControl::ClearTitles |
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// ----------------------------------------------------------------------------- |
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// |
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void CXnNewstickerControl::ClearTitles() |
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181 |
{ |
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iAdapter->Stop(); |
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iCurrentTitleIndex = -1; |
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// Don't delete just clear the contents |
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for( TInt i=0; i < iTitleTexts.Count(); i++ ) |
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186 |
{ |
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TRAP_IGNORE( UpdateTitleL( KNullDesC, i ) ); |
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} |
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} |
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190 |
|
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191 |
// ----------------------------------------------------------------------------- |
2
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// CXnNewstickerControl::TitleCount |
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193 |
// ----------------------------------------------------------------------------- |
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194 |
// |
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TInt CXnNewstickerControl::TitleCount() const |
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{ |
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return iTitleTexts.Count(); |
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} |
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199 |
|
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200 |
// ----------------------------------------------------------------------------- |
2
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// CXnNewstickerControl::SelectTitle |
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// (other items were commented in a header). |
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203 |
// ----------------------------------------------------------------------------- |
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204 |
// |
2
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const TDesC& CXnNewstickerControl::SelectTitle() |
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206 |
{ |
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if( IsVisibleTitles() ) |
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208 |
{ |
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if( iCurrentTitleIndex < 0 || iCurrentTitleIndex >= iTitleTexts.Count() ) |
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{ |
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// Get the last title |
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TInt index = |
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GetNextTitleWithContent( iTitleTexts.Count() - 1, ETrue ); |
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iCurrentTitleIndex = index; |
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} |
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|
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return Title( iCurrentTitleIndex ); |
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} |
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|
2
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return KNullDesC; |
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} |
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|
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// ----------------------------------------------------------------------------- |
2
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// CXnNewstickerControl::GetNextTitleWithContent |
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// ----------------------------------------------------------------------------- |
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// |
2
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TInt CXnNewstickerControl::GetNextTitleWithContent( TInt aStartSearch, |
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TBool aBackwards ) const |
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{ |
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TInt dir = 1; |
2
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if( aBackwards ) |
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{ |
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dir = -1; |
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} |
2
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|
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for( TInt i = aStartSearch; i < iTitleTexts.Count() && i >= 0; i += dir ) |
0
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{ |
2
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if( iTitleTexts[i]->Compare( KNullDesC ) != KErrNone ) |
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{ |
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return i; |
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} |
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} |
2
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|
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return aStartSearch; |
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} |
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|
2
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// ----------------------------------------------------------------------------- |
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// CXnNewstickerControl::SetCurrentTitle |
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// ----------------------------------------------------------------------------- |
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// |
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TBool CXnNewstickerControl::SetCurrentTitle( TBool aSetDefault ) |
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{ |
2
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TBool ret( EFalse ); |
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TInt lastIndex( iTitleTexts.Count() - 1 ); |
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|
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if( aSetDefault ) |
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{ |
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iCurrentTitleIndex = GetNextTitleWithContent( lastIndex, ETrue ); |
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} |
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else if( iCurrentTitleIndex >= lastIndex ) |
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{ |
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iCurrentTitleIndex = GetNextTitleWithContent( 0 ); |
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} |
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else |
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{ |
2
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iCurrentTitleIndex = GetNextTitleWithContent( iCurrentTitleIndex + 1 ); |
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} |
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|
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if( iCurrentTitleIndex == lastIndex) |
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{ |
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ret = ETrue; |
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} |
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|
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return ret; |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CXnNewstickerControl::IsVisibleTitles |
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// ----------------------------------------------------------------------------- |
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// |
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TBool CXnNewstickerControl::IsVisibleTitles() const |
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{ |
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for( TInt i=0; i < iTitleTexts.Count(); i++ ) |
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{ |
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if( iTitleTexts[i]->Compare( KNullDesC ) != KErrNone ) |
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{ |
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return ETrue; |
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} |
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} |
2
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|
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return EFalse; |
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} |
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|
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|
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// End of File |