encoderselectiondialog.cpp

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/*
* ============================================================================
*  Name     : CEncoderSelectionDialog from EncoderSelectionDialog.cpp
*  Part of  : ImageConverter
*  Created  : 25.11.2003 Forum Nokia
*  Description:
*     Used to select encoding format.
*  Version  :
*  Copyright: Nokia Corporation
* ============================================================================
*/

// INCLUDE FILES
#include <aknlists.h>
#include <ImageConversion.h>

#include "ImageConverter.hrh"
#include "EncoderSelectionDialog.h"
#include "ImageConverterEngine.h"

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

// C++ default constructor can NOT contain any code, that
// might leave.
//
CEncoderSelectionDialog::CEncoderSelectionDialog( 
	RImageTypeDescriptionArray& aImageTypes, 
	TInt& aSelectedIdx ) : 
	iImageTypes( aImageTypes ), iSelectedIdx( aSelectedIdx )
    {
    }

CEncoderSelectionDialog::~CEncoderSelectionDialog()
	{
	delete iListBox;
	}


// ----------------------------------------------------------
// CEncoderSelectionDialog::PreLayoutDynInitL()
// Initializing the dialog dynamically
// ----------------------------------------------------------
//
void CEncoderSelectionDialog::PreLayoutDynInitL()
    {
    SetEditableL(ETrue);

    // Create a control to display a list of messages
    iListBox = new (ELeave) CAknSingleStyleListBox;
    iListBox->SetContainerWindowL(*this);
    iListBox->ConstructL(this, 0);

    iListBox->ActivateL();
    iListBox->CreateScrollBarFrameL(ETrue);
    iListBox->ScrollBarFrame()->
		SetScrollBarVisibilityL(CEikScrollBarFrame::EOn, 
								CEikScrollBarFrame::EAuto);

    // Create an array to hold the messages
    iMessageList = new (ELeave) CDesCArrayFlat(10);

    // Give it to the control
    CTextListBoxModel* model = iListBox->Model();
    model->SetItemTextArray(iMessageList);
    model->SetOwnershipType(ELbmOwnsItemArray); // transfer ownership
    }

void CEncoderSelectionDialog::PostLayoutDynInitL()
	{
	// add the message to the list
	iListBox->SetRect( Rect() );

	_LIT( KTab, "\t" );

	for( TInt i=0; i<iImageTypes.Count(); i++ ) {
		TBuf<80> desc;

		desc.Append( KTab );
		desc.Append( iImageTypes[i]->Description() );
	
		iMessageList->AppendL( desc );
	}

    // tell the control about the change
    iListBox->HandleItemAdditionL();
	}

// ----------------------------------------------------------
// CEncoderSelectionDialog::OkToExitL()
// This function ALWAYS returns ETrue
// ----------------------------------------------------------
//
TBool CEncoderSelectionDialog::OkToExitL(TInt /*aButtonId*/)
    {
	iSelectedIdx = iListBox->CurrentItemIndex();
	return ETrue;
    }

TInt CEncoderSelectionDialog::CountComponentControls() const
    {
	if( iListBox )
		return( 1 );
	else 
		return( 0 ); 
	}

CCoeControl* CEncoderSelectionDialog::ComponentControl(TInt /*aIndex*/) const
    {
	return iListBox;
    }

TKeyResponse CEncoderSelectionDialog::OfferKeyEventL(
	const TKeyEvent& aKeyEvent,TEventCode aType)
	{
	if( iListBox )
		return( iListBox->OfferKeyEventL(aKeyEvent, aType) );
	else
		return( EKeyWasNotConsumed );
	}