S60 3rd Edition SDK for Symbian OS Example Applications Guide

HWRMTestAppContainer.cpp

/*
* ==============================================================================
*  Name        : HWRMTestAppContainer.h
*  Part of     : HWRMTestApp
*  Interface   : 
*  Description : HWRM 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 <HWRMTestApp.rsg>
#include "HWRMTestAppContainer.h"


// CONSTANTS
const TInt KMaxLineLength(18);

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

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

    iListBox = new(ELeave) CAknSingleStyleListBox();
    iListBox->ConstructL( this, EEikListBoxMultipleSelection );
    
    iListBox->CreateScrollBarFrameL(ETrue);
    iListBox->ScrollBarFrame()->SetScrollBarVisibilityL(CEikScrollBarFrame::EOn,
                                                        CEikScrollBarFrame::EAuto);
    
    iLabel = new (ELeave) CEikLabel;
    iLabel->SetContainerWindowL( *this );
    _LIT( KLabel, "HWRM Test:");
    iLabel->SetTextL( KLabel );

    SetRect(aRect);
    ActivateL();
    }

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

// -----------------------------------------------------------------------------
// CHWRMTestAppContainer::SizeChanged
// Called by framework when the view size is changed
// -----------------------------------------------------------------------------
//
void CHWRMTestAppContainer::SizeChanged()
    {
    // set the label position
    iLabel->SetExtent( TPoint(0,0), iLabel->MinimumSize() );
    
    // get the label height so we can position listbox correctly
    TInt labelHeight = iLabel->Rect().Height();

    // create a fixed border size
    TInt border(5);
    // create the listbox size taking into account the border and label size
    TSize listBoxSize( Rect().Width() - (2 * border),
                       Rect().Height() - labelHeight - (2 * border));
    // set the listbox position
    iListBox->SetExtent( TPoint(border,labelHeight + border), listBoxSize );
    }

// -----------------------------------------------------------------------------
// CHWRMTestAppContainer::CountComponentControls
// Return number of controls in container
// -----------------------------------------------------------------------------
//
TInt CHWRMTestAppContainer::CountComponentControls() const
    {
    return 2; // return nbr of controls inside this container
    }

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

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

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

// -----------------------------------------------------------------------------
// CHWRMTestAppContainer::AddMessageL
// Add message to list box in the container
// -----------------------------------------------------------------------------
//
void CHWRMTestAppContainer::AddMessageL( const TDesC& aMsg ) const
    {
    // buffer for message string to take the line and a single \t character
    _LIT( KTab, "\t" );
    TBuf<KMaxLineLength+1> msgBuf;
    
    CDesCArray* list = static_cast<CDesCArray*>( iListBox->Model()->ItemTextArray() );
    TInt pos(0);
    
    while( aMsg.Length() > pos+KMaxLineLength )
        {
        // add the \t to the string for the Avkon listbox
        msgBuf = ( KTab );
        msgBuf.Append( aMsg.Mid( pos, KMaxLineLength ) );
        list->AppendL( msgBuf );
        
        pos += KMaxLineLength;
        }
    
    msgBuf = ( KTab );
    msgBuf.Append( aMsg.Mid( pos ) );
    list->AppendL( msgBuf );
    
    iListBox->HandleItemAdditionL();
    // Select the last item added
    iListBox->SetCurrentItemIndexAndDraw( iListBox->Model()->NumberOfItems() - 1 );

    iListBox->SetFocus( ETrue );
    }

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

// ---------------------------------------------------------
// CHWRMTestAppContainer::HandleResourceChange()
// Called by framework when layout is changed.
// ---------------------------------------------------------
//
void CHWRMTestAppContainer::HandleResourceChange(TInt aType)
    {
    CCoeControl::HandleResourceChange(aType);

    // ADDED FOR SCALABLE UI SUPPORT
    // *****************************
    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