S60 3rd Edition SDK for Symbian OS Example Applications Guide

FindItemTestAppContainer.cpp

/*
* ============================================================================
*  Name        : CFindItemTestAppContainer from FindItemTestAppContainer.h
*  Part of     : FindItemTestApp
*  Interface   : 
*  Description : Find Item Test application container implementation
*  Version     : 
*
*  Copyright (c) 2002-2006 Nokia Corporation.
*  This material, including documentation and any related 
*  computer programs, is protected by copyright controlled by 
*  Nokia Corporation.
* ==============================================================================
*/

// INCLUDE FILES
#include <eiklabel.h>  // for example label control
#include <aknlists.h>
#include <barsread.h>  // for TResourceReader
#include <FindItemTestApp.rsg>
#include "FindItemTestAppContainer.h"


// CONSTANTS
const TInt KMaxLineLength(23);

// ================= MEMBER FUNCTIONS =======================

// ---------------------------------------------------------
// CFindItemTestAppContainer::ConstructL
// Symbian 2nd phase constructor can leave.
// ---------------------------------------------------------
//
void CFindItemTestAppContainer::ConstructL(const TRect& aRect)
    {
    CreateWindowL();

    iListBox = new(ELeave) CEikTextListBox();
    iListBox->SetContainerWindowL( *this );
    TResourceReader reader;
    iEikonEnv->CreateResourceReaderLC(reader, R_FINDITEMTESTAPP_LIST);
    iListBox->ConstructFromResourceL(reader);
    CleanupStack::PopAndDestroy();
    iListBox->CreateScrollBarFrameL(ETrue);
    iListBox->ScrollBarFrame()->SetScrollBarVisibilityL(CEikScrollBarFrame::EOn, CEikScrollBarFrame::EOn); 
    
    iLabel = new (ELeave) CEikLabel;
    iLabel->SetContainerWindowL( *this );
    _LIT(KFindItemTest, "Find Item Test");
    iLabel->SetTextL( KFindItemTest );
    
    SetRect(aRect);
    ActivateL();
    }

// -----------------------------------------------------------------------------
// CFindItemTestAppContainer::~CFindItemTestAppContainer
// Destructor
// -----------------------------------------------------------------------------
//
CFindItemTestAppContainer::~CFindItemTestAppContainer()
    {
    delete iListBox;
    delete iLabel;    
    }

// ---------------------------------------------------------
// CFindItemTestAppContainer::SizeChanged
// Called by framework when the view size is changed
// ---------------------------------------------------------
//
void CFindItemTestAppContainer::SizeChanged()
    {
    TRect parentRect(Rect());
        TSize listBoxSize(parentRect.Width(), parentRect.Height());
        iListBox->SetExtent( TPoint(0,0), listBoxSize );
    }
    
// ---------------------------------------------------------
// CFindItemTestAppContainer::CountComponentControls
// Return number of controls in container
// ---------------------------------------------------------
//
TInt CFindItemTestAppContainer::CountComponentControls() const
    {
    return 2; // return nbr of controls inside this container
    }

// ---------------------------------------------------------
// CFindItemTestAppContainer::ComponentControl
// Return component control
// ---------------------------------------------------------
//
CCoeControl* CFindItemTestAppContainer::ComponentControl(TInt aIndex) const
    {
    switch ( aIndex )
        {
        case 0:
            return iListBox;
        case 1:
            return iLabel;
        default:
            return NULL;
        }
    }

// ---------------------------------------------------------
// CFindItemTestAppContainer::Draw
// ---------------------------------------------------------
//
void CFindItemTestAppContainer::Draw(const TRect& aRect) const
    {
    CWindowGc& gc = SystemGc();
    gc.SetPenStyle(CGraphicsContext::ENullPen);
    gc.SetBrushColor(KRgbWhite);
    gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
    gc.DrawRect(aRect);
    }

// ---------------------------------------------------------
// CFindItemTestAppContainer::HandleControlEventL
// ---------------------------------------------------------
//
void CFindItemTestAppContainer::HandleControlEventL(
    CCoeControl* /*aControl*/,TCoeEvent /*aEventType*/)
    {
    }

// -----------------------------------------------------------------------------
// CFindItemTestAppContainer::AddMessageL
// Add message to list box in the container
// -----------------------------------------------------------------------------
//
void CFindItemTestAppContainer::AddMessageL( const TDesC& aMsg )
    {
    CDesCArray* list = static_cast<CDesCArray*>( iListBox->Model()->ItemTextArray() );
    TInt pos(0);
    
    while( aMsg.Length() > pos+KMaxLineLength )
        {
        list->AppendL( aMsg.Mid( pos, KMaxLineLength ) );
        pos += KMaxLineLength;
        }
    list->AppendL( aMsg.Mid( pos ) );
    
    
    iListBox->HandleItemAdditionL();
    // Select the last item added
    iListBox->SetCurrentItemIndexAndDraw( iListBox->Model()->NumberOfItems() - 1 );
    iListBox->SetFocus( ETrue );
    }

// -----------------------------------------------------------------------------
// CFindItemTestAppContainer::ResetMessage
// Reset messages of list box in the container
// -----------------------------------------------------------------------------
//
 void CFindItemTestAppContainer::ResetMessage()
 {
    CDesCArray* list = static_cast<CDesCArray*>( iListBox->Model()->ItemTextArray() );
    // remove all items from the text array
    list->Reset();
    // Redraw the listbox
    iListBox->DrawNow();
    // Set keyboard focus to listbox if you want
    iListBox->SetFocus( ETrue );        
 }

// -----------------------------------------------------------------------------
// CFindItemTestAppContainer::OfferKeyEventL
// Pass key event to appropriate controls
// -----------------------------------------------------------------------------
//
TKeyResponse CFindItemTestAppContainer::OfferKeyEventL( const TKeyEvent& aKeyEvent,TEventCode aType )
    {
    return iListBox->OfferKeyEventL( aKeyEvent, aType );    
    }

// ---------------------------------------------------------
// CFindItemTestAppContainer::HandleResourceChange()
// Called by framework when layout is changed.
// ---------------------------------------------------------
//
void CFindItemTestAppContainer::HandleResourceChange(TInt aType)
    {
    CCoeControl::HandleResourceChange(aType);
    
    if ( aType==KEikDynamicLayoutVariantSwitch )
        {
        TRect rect;
        AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EMainPane, rect);
        SetRect(rect);
        }
    // Redraw the listbox
    iListBox->DrawNow();
    }
    
// End of File  

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© Nokia 2006