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/*
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* Copyright (c) 2002 - 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: part of testviewframework.
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*
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*/
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// INCLUDE FILES
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#include <e32base.h>
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#include "testbaseview.h"
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#include "consolemain.h"
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#include "testmenuview.h"
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// CONSTANTS
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const TInt KMenuOverhead = 4; // overhead
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const TInt KMaxLineLength = 80; // Longest supported line length
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const TInt KArrGranularity = 4; // DesC array granularity
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// LOCAL FUNCTION PROTOTYPES
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LOCAL_C void LimitedAppend( TDes& aOriginal, const TDesC& aAppend);
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// ==================== LOCAL FUNCTIONS =======================================
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LOCAL_C void LimitedAppend( TDes& aOriginal, const TDesC& aAppend)
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{
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TInt spaceLeft = aOriginal.MaxLength() - aOriginal.Length();
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if (spaceLeft > aAppend.Length())
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{
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aOriginal.Append ( aAppend );
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}
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else
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{
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aOriginal.Append ( aAppend.Left ( spaceLeft ) );
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}
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}
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//
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//=========================================================================== *
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// Implementation for Class CTestBaseView *
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//=========================================================================== *
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//
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// ---------------------------------------------------------------------------
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// Method: ~CTestMenuView
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// Description: Destructor
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// Parameters: None
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// Return Values: None
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// ---------------------------------------------------------------------------
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//
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EXPORT_C CTestMenuView::~CTestMenuView()
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{
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iItems->Reset();
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delete iItems;
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}
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// ---------------------------------------------------------------------------
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// Method: DisplayViewL
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// Description: Prints the menu
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// Parameters: None
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// Return Values: None
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void CTestMenuView::DisplayViewL()
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{
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CTestBaseView::DisplayViewBase();
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TBuf<KMaxLineLength> line;
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// Clear display
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iConsole->ClearScreen();
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// Print menu title and header
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Print( Name() );
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TInt oldItemCount = iItemCount;
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iItemCount = ItemCount();
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// If first time in view, update start and end positions
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if( (iFirst == iLast) || // First time here..
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( iLast >= iItemCount ) ||
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( oldItemCount != iItemCount ) ) // View size changed
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{
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iLast = iItemCount - 1;
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iPosOnScreen = 0;
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// If "overflow", then adjust the end
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if (iLast > iScreenSize )
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{
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iLast = iScreenSize;
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}
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}
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// Print items
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for ( TInt i = iFirst; i <= iLast; i++ )
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{
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line.Zero();
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// Append text before line
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AppendBefore( i, line );
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// Get the menu line
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LimitedAppend ( line, ItemL(i) );
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// Print the line
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Print(line);
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}
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}
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// -----------------------------------------------------------------------------
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// Method: SelectL
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// Description: Process keypresses in view. updates position
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// Parameters: TKeyCode aSelection :in: Key
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// TBool& aContinue :out: Has user pressed "Quit"
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// Return Values: None
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CTestMenuView::SelectL( TKeyCode aSelection, TBool& aContinue )
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{
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iKey = aSelection;
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// iConsole->Printf(_L("%d"),iKey);
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switch ( (TInt) aSelection )
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{
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// SelectL item
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case EKeyEnter:
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case EKeyRightArrow:
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HandleRightKeyL();
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break;
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// Going back
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case EKeyLeftArrow:
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HandleLeftKeyL();
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break;
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// Number key
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case 92: // '1'
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case 97: // '2'
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case 100: // '3'
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// case '2':
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// case '3':
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// case '4':
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// case '5':
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// case '6':
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// case '7':
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// case '8':
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// case '9':
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// case '0':
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HandleNumKeyL();
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break;
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// Go down
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case EKeyDownArrow:
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if ( iFirst + iPosOnScreen == iItemCount - 1 )
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{
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// If end of the list, go to beginning
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iLast = iLast - iFirst;
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iFirst = 0;
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iPosOnScreen = 0;
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}
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else
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{
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if ( iPosOnScreen == iScreenSize )
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{
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// If in end of screen, update items
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if ( iLast != (iItemCount - 1) )
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{
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// If not end of the list, then update first and last
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// but do not update position in screen.
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iLast++;
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iFirst++;
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}
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}
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else
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{
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// Going down "in-screen", no need to update items
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iPosOnScreen++;
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}
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}
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break;
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// Go Up
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case EKeyUpArrow:
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if ( iFirst + iPosOnScreen == 0 )
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{
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// If in the beginning of the list
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if ( iItemCount <= iScreenSize )
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{
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// Wrap around when the list is not full
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iPosOnScreen = iItemCount-1;
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}
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else
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{
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// Wrap around when there are more items than
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// can be shown at once.
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iPosOnScreen = iScreenSize;
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iLast = iItemCount-1;
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iFirst = iItemCount - iPosOnScreen - 1;
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}
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}
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else if ( iPosOnScreen == 0 )
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{
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// If not at the beginning of the list, then update first and
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// last but do not update position in screen.
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if ( iFirst != 0 )
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{
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iLast--;
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iFirst--;
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}
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}
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else
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{
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// Going up "in-screen", no need to update items
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iPosOnScreen--;
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}
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break;
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// Additional keys
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case EKeyHome:
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iPosOnScreen = 0;
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iFirst = 0;
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iLast = iScreenSize;
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if (iLast > iItemCount-1 )
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{
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iLast = iItemCount-1;
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}
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break;
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case EKeyEnd:
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iPosOnScreen = iScreenSize;
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iLast = iItemCount-1;
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iFirst = iLast - iScreenSize;
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if (iFirst < 0)
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{
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iFirst = 0;
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iPosOnScreen = iLast-1;
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}
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break;
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case EKeyPageUp:
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iFirst = iFirst - iScreenSize - 1;
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iLast = iLast - iScreenSize - 1;
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if ( iFirst < 0 )
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{
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iFirst = 0;
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iPosOnScreen = 0;
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iLast = iScreenSize;
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if (iLast > iItemCount-1 )
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{
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iLast = iItemCount-1;
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}
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}
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break;
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case EKeyPageDown:
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iFirst = iFirst + iScreenSize + 1;
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iLast = iLast + iScreenSize + 1;
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// Going too far
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if (iLast > iItemCount-1)
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{
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iLast = iItemCount-1;
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iFirst = iLast - iScreenSize;
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iPosOnScreen = iScreenSize;
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}
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// Ok, list is smaller than screen
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if (iFirst < 0 )
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{
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iFirst = 0;
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iLast = iItemCount-1;
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iPosOnScreen = iLast;
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}
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break;
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case EKeyEscape:
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aContinue = EFalse;
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CurrentViewDoneL();
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return;
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default: // Bypass the keypress
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break;
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}
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// Continue normally and keep in the same menu
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aContinue = ETrue;
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}
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// -----------------------------------------------------------------------------
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// Method: TimerUpdate
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// Description: TimerUpdate
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// Parameters: None
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// Return Values: None
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CTestMenuView::TimerUpdate()
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{
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TInt count = ItemCount();
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// If list is empty, do not scroll.
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if ( count < 1 )
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{
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return;
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}
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else if( iFirst + iPosOnScreen > count )
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{
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iFirst = iPosOnScreen = 0;
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}
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// If item selection is updated, then restart scrolling
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if (iPrevPos != iFirst + iPosOnScreen)
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{
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iPrevPos = iFirst + iPosOnScreen;
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iStart = 0;
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iDirection = 1;
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}
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// If menu item have not been changed after last timer, then
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// start scrolling
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TName name(KNullDesC);
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TRAPD(err, name = ItemL(iFirst + iPosOnScreen));
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if(err != KErrNone)
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return;
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if ( name.Length() > iSize.iWidth)
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{
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TInt y = iConsole->WhereY();
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TInt x = iConsole->WhereX();
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TBuf<80> iTmp;
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iStart = iStart + iDirection;
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// "Right end"
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if ( iStart + iSize.iWidth > name.Length() +KMenuOverhead )
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{
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iStart--;
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iDirection = -1;
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}
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// "Left end"
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if ( iStart == -1 )
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{
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iStart++;
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iDirection = 1;
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}
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iTmp=_L(" *");
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LimitedAppend( iTmp, name.Mid ( iStart ) );
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iConsole->SetPos( 0, iPosOnScreen+1);
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iConsole->Printf ( iTmp.Left( iSize.iWidth -2 ) );
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iConsole->SetPos(x,y);
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}
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}
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// ---------------------------------------------------------------------------
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// Method: CTestMenuView
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// Description: C++ default constructor
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// Parameters: CConsoleMain* aConsole :in: Pointer to main console
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// CTestBaseView* aParent :in: Parent View
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// const TDesC& aName :in: Menu name
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// Return Values: None
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// ---------------------------------------------------------------------------
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//
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EXPORT_C CTestMenuView::CTestMenuView(CConsoleMain* aConsoleMain,
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CTestBaseView* aParent,
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const TDesC& aName)
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: CTestBaseView(aConsoleMain, aParent, aName)
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{
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iDirection = 1;
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iPrevPos = -1; // Invalid starting value
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}
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// ---------------------------------------------------------------------------
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// Method: ConstructL
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// Description: Second level constructor.
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// Parameters: None
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// Return Values: None
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void CTestMenuView::ConstructL()
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{
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iItems = new (ELeave) CDesCArrayFlat(KArrGranularity);
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// Get display size
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const TInt KOverHead = 5;
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iSize = iConsole->ScreenSize();
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iScreenSize = iSize.iHeight - KOverHead; // Size available for menus
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InitializeViewL();
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}
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// ---------------------------------------------------------------------------
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// Method: Print
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// Description: Prints one line text and changes to next line. If line is
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// too long, overhead is not printed..
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// Parameters: TDesC& aPrint :in: Text to be printed
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// Return Values: None
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void CTestMenuView::Print( const TDesC& aPrint )
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{
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iConsole->Printf( aPrint.Left( iSize.iWidth - KMenuOverhead ) );
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iConsole->Printf(_L("\n"));
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}
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// ---------------------------------------------------------------------------
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// Method: PrintMulti
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// Description: Prints text. If line is too long, it will be continued to
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// following lines.
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// Parameters: const TDesC& aPrint :in: Text to print
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// Return Values: None
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void CTestMenuView::PrintMulti( const TDesC& aPrint )
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{
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// Get current line
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const TInt KMenuOverHead = 2;
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TInt y = iConsole->WhereY();
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const TInt KLineLen =iSize.iWidth - 4;
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TBuf<KMaxLineLength+1> oneLine;
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// Loop through the line
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for (TInt i = 0; i < aPrint.Length(); i++)
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{
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oneLine.Append( aPrint[i] );
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// Print one line
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if (oneLine.Length() == KLineLen )
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{
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oneLine.Append (_L("\n"));
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iConsole->Printf(oneLine);
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oneLine=_L("");
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y++;
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}
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// Prevent display scrolling
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if ( y == iScreenSize + KMenuOverHead )
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{
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oneLine=_L("");
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break;
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}
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}
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// Print last part if required
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if ( oneLine.Length() != 0 )
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{
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oneLine.Append (_L("\n"));
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iConsole->Printf(oneLine);
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}
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}
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// ---------------------------------------------------------------------------
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// Method: AddItem
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// Description: Add new item to menu
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// Parameters: TDesC& aItem :in: descriptor to be added
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// Return Values: None
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// ---------------------------------------------------------------------------
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//
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|
472 |
EXPORT_C void CTestMenuView::AddItemL(const TDesC& aItem)
|
|
473 |
{
|
|
474 |
iItems->AppendL(aItem);
|
|
475 |
}
|
|
476 |
|
|
477 |
// ---------------------------------------------------------------------------
|
|
478 |
// Method: DeleteItem
|
|
479 |
// Description: Delete an item from menu
|
|
480 |
// Parameters: TInt aIndex :in: position of item in Items
|
|
481 |
// Return Values: None
|
|
482 |
// ---------------------------------------------------------------------------
|
|
483 |
//
|
|
484 |
EXPORT_C void CTestMenuView::DeleteItem( TInt aIndex )
|
|
485 |
{
|
|
486 |
iItems->Delete(aIndex);
|
|
487 |
iItems->Compress();
|
|
488 |
}
|
|
489 |
|
|
490 |
// ---------------------------------------------------------------------------
|
|
491 |
// Method: LastKeyPressed
|
|
492 |
// Description: Returns last key pressed
|
|
493 |
// Parameters: None
|
|
494 |
// Return Values: TKeyCode The last key pressed
|
|
495 |
// ---------------------------------------------------------------------------
|
|
496 |
//
|
|
497 |
EXPORT_C TKeyCode CTestMenuView::LastKeyPressed()
|
|
498 |
{
|
|
499 |
return iKey;
|
|
500 |
}
|
|
501 |
// ---------------------------------------------------------------------------
|
|
502 |
// Method: ItemsCreated
|
|
503 |
// Description: Determine whether there are items added to iItems
|
|
504 |
// Parameters: None
|
|
505 |
// Return Values: TBool Whether iItems contain content
|
|
506 |
// ---------------------------------------------------------------------------
|
|
507 |
//
|
|
508 |
EXPORT_C TBool CTestMenuView::ItemsCreated()
|
|
509 |
{
|
|
510 |
return ( iItems->Count() != 0 );
|
|
511 |
}
|
|
512 |
|
|
513 |
// ---------------------------------------------------------------------------
|
|
514 |
// Method: CurrentIndex
|
|
515 |
// Description: Get the position that the cursor is point to in the items
|
|
516 |
// Parameters: None
|
|
517 |
// Return Values: TInt Position of cursor in items array
|
|
518 |
// ---------------------------------------------------------------------------
|
|
519 |
//
|
|
520 |
EXPORT_C TInt CTestMenuView::CurrentIndex()
|
|
521 |
{
|
|
522 |
return iFirst + iPosOnScreen;
|
|
523 |
}
|
|
524 |
|
|
525 |
// ---------------------------------------------------------------------------
|
|
526 |
// Method: CurrentPosition
|
|
527 |
// Description: Get the position that the cursor is point to on the screen
|
|
528 |
// Parameters: None
|
|
529 |
// Return Values: TInt Position of cursor on screen
|
|
530 |
// ---------------------------------------------------------------------------
|
|
531 |
//
|
|
532 |
EXPORT_C TInt CTestMenuView::CurrentPosition()
|
|
533 |
{
|
|
534 |
return iPosOnScreen;
|
|
535 |
}
|
|
536 |
|
|
537 |
// ---------------------------------------------------------------------------
|
|
538 |
// Method: Menu
|
|
539 |
// Description: Get the item
|
|
540 |
// Parameters: TInt aIndex :in index of the entry
|
|
541 |
// Return Values: TDesC& entry descriptor
|
|
542 |
// ---------------------------------------------------------------------------
|
|
543 |
//
|
|
544 |
EXPORT_C TPtrC CTestMenuView::ItemL(TInt aIndex)
|
|
545 |
{
|
|
546 |
if(aIndex < 0 || iItemCount <= aIndex)
|
|
547 |
{
|
|
548 |
User::Leave(KErrArgument);
|
|
549 |
}
|
|
550 |
//return iItems->operator[](iFirst + aIndex);
|
|
551 |
return iItems->operator[](aIndex);
|
|
552 |
}
|
|
553 |
|
|
554 |
// -----------------------------------------------------------------------------
|
|
555 |
// Method: ItemCount
|
|
556 |
// Count the number of items in the current view
|
|
557 |
// -----------------------------------------------------------------------------
|
|
558 |
//
|
|
559 |
EXPORT_C TInt CTestMenuView::ItemCount() const
|
|
560 |
{
|
|
561 |
return iItems->Count();
|
|
562 |
}
|
|
563 |
|
|
564 |
// -----------------------------------------------------------------------------
|
|
565 |
// Method: ReadString
|
|
566 |
// Reads user input into the start of the descriptor aDes
|
|
567 |
// -----------------------------------------------------------------------------
|
|
568 |
//
|
|
569 |
EXPORT_C void CTestMenuView::ReadString( TDes& aDes )
|
|
570 |
{
|
|
571 |
iConsoleMain->ReadString(aDes);
|
|
572 |
}
|
|
573 |
|
|
574 |
// -----------------------------------------------------------------------------
|
|
575 |
// Method: AppendBefore
|
|
576 |
// Description: Append text before line.
|
|
577 |
// Parameters: TInt aLine :in: line number
|
|
578 |
// TDes& aLine :in: line text
|
|
579 |
// Return Values: None
|
|
580 |
// -----------------------------------------------------------------------------
|
|
581 |
//
|
|
582 |
void CTestMenuView::AppendBefore( TInt aLineNum, TDes& aLine )
|
|
583 |
{
|
|
584 |
if( ( aLine.MaxLength() - aLine.Length() ) < 2 )
|
|
585 |
{
|
|
586 |
return;
|
|
587 |
}
|
|
588 |
|
|
589 |
// If printing active line, print the marker
|
|
590 |
if ( aLineNum == iPosOnScreen + iFirst )
|
|
591 |
{
|
|
592 |
aLine.Append( _L(" *") );
|
|
593 |
}
|
|
594 |
else
|
|
595 |
{
|
|
596 |
aLine.Append( _L(" ") );
|
|
597 |
}
|
|
598 |
}
|