/*

* Copyright (c) 2002-2004 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Implementation of the CScrollThumb class.

*

*/

#include "ScrollThumb.h"

///////////////////////////////////////////////////////////////////////////////

// Construction/Destruction

///////////////////////////////////////////////////////////////////////////////

//-----------------------------------------------------------------------------

// CScrollThumb::NewL(CScrollBar::TOrientation aOrientation)

//

// Two-phased construction

//-----------------------------------------------------------------------------

//

CScrollThumb* CScrollThumb::NewL(CScrollBar::TOrientation aOrientation)

	{

	CScrollThumb* self = new (ELeave) CScrollThumb(aOrientation);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop();	// self

	return self;

	}

//-----------------------------------------------------------------------------

// CScrollThumb::CScrollThumb(CScrollBar::TOrientation aOrientation)

//

// First Phase Construction

//-----------------------------------------------------------------------------

//

CScrollThumb::CScrollThumb(CScrollBar::TOrientation aOrientation)

	{

	const TRgb KThumbColour = 0x808080;	// dark grey

	const TRgb KThumbShadowColour = KRgbWhite;

	iOrientation = aOrientation;

	SetRect(TRect(0,0,0,0));

	SetThumbColours(KThumbColour, KThumbShadowColour);

	}

//-----------------------------------------------------------------------------

// CScrollThumb::ConstructL()

// 

// EPOC Second Phase Constructor

//-----------------------------------------------------------------------------

//

void CScrollThumb::ConstructL( )

	{

	}	

//-----------------------------------------------------------------------------

// CScrollThumb::~CScrollThumb()

// 

// DESTRUCTOR

//-----------------------------------------------------------------------------

//

CScrollThumb::~CScrollThumb()

	{

	}

//-----------------------------------------------------------------------------

// void CScrollThumb::Draw(const TRect& /*aRect*/) const

// 

// Draws the thumb with a shadow

//-----------------------------------------------------------------------------

//

void CScrollThumb::Draw(const TRect& /*aRect*/) const

	{

	CWindowGc& gc = SystemGc();

	// Thumb Shadow

	gc.SetBrushStyle(CGraphicsContext::ENullBrush);

	gc.SetPenStyle(CGraphicsContext::ESolidPen);

	gc.SetPenColor(iThumbShadowColour);

	gc.DrawRect(iThumbShadow);

	// Thumb

	gc.SetBrushStyle(CGraphicsContext::ESolidBrush);

	gc.SetPenStyle(CGraphicsContext::ENullPen);

	gc.SetBrushColor(iThumbColour);

	gc.DrawRect(iThumbCentre);

	}

//-----------------------------------------------------------------------------

// void CScrollThumb::SizeChanged() 

//-----------------------------------------------------------------------------

//

void CScrollThumb::SizeChanged() 

    {

    }

//-----------------------------------------------------------------------------

// void CScrollThumb::SetThumbColours(TRgb aThumbColour, TRgb aThumbShadowColour)

// 

// Sets colours for thumb

//-----------------------------------------------------------------------------

//

void CScrollThumb::SetThumbColours(TRgb aThumbColour, TRgb aThumbShadowColour)

	{

	iThumbColour = aThumbColour;

	iThumbShadowColour = aThumbShadowColour;

	}

//-----------------------------------------------------------------------------

// void CScrollBarThumb::SetThumbAndShadow(const TRect& aRect)

// 

// Sets the rect of the thumb and its shadow

//-----------------------------------------------------------------------------

//

void CScrollThumb::SetThumbAndShadow(const TRect& aRect)

	{

	SetRect(aRect);

	iThumbCentre = iThumbShadow = aRect;

	iThumbCentre.Shrink(KTrackBkgdThickness, KTrackBkgdThickness);

	// Shadow shown only at its ends

	if (iOrientation == CScrollBar::EVertical)

		{

		iThumbShadow.Shrink(KTrackBkgdThickness, 0);		

		}

	else

		{

		iThumbShadow.Shrink(0, KTrackBkgdThickness);

		}

	}