/*
* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "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 TGlxZoomLayoutBase
*
*/
// INCLUDE FILES
#include "glxzoomlayoutbase.h"
#include <alf/alftimedvalue.h>
// ============================ MEMBER FUNCTIONS ===============================
// -----------------------------------------------------------------------------
// C++ default constructor can NOT contain any code, that might leave.
// -----------------------------------------------------------------------------
//
EXPORT_C TGlxZoomLayoutBase::TGlxZoomLayoutBase()
{
}
// -----------------------------------------------------------------------------
// Destructor
// -----------------------------------------------------------------------------
//
EXPORT_C TGlxZoomLayoutBase::~TGlxZoomLayoutBase()
{
}
// -----------------------------------------------------------------------------
// SetImageDimensions
// -----------------------------------------------------------------------------
//
EXPORT_C void TGlxZoomLayoutBase::SetImageDimensions(const TSize& aDimensions)
{
iImageDimensions = aDimensions;
iChanged = ETrue;
}
// -----------------------------------------------------------------------------
// ImageDimensions
// -----------------------------------------------------------------------------
//
EXPORT_C const TSize& TGlxZoomLayoutBase::ImageDimensions() const
{
return iImageDimensions;
}
// -----------------------------------------------------------------------------
// DoSetLayoutValues
// -----------------------------------------------------------------------------
//
EXPORT_C void TGlxZoomLayoutBase::DoSetLayoutValues(TGlxLayoutInfo& aInfo)
{
TAlfRealRect rect;
GetCurrentCoords(rect);
// These checks on iImageDimensions width/height must occur after GetCurrentCoords,
/* // since they may be changed as a result of the call to GetCurrentCoords
if ( iImageDimensions.iWidth > 0 && iImageDimensions.iHeight > 0 )
{
// The previous layout in the chain has set the position and size for
// the visual to fill the screen, so we base the values on that.
// Now adjust according to zoom coordinates
TAlfRealPoint centre = rect.Center();
TReal32 width = aInfo.iScreenSize.iX * rect.Width();
TReal32 height = aInfo.iScreenSize.iY * rect.Height();
// Adjust size according to proportion of screen that image fills
// Account for TGlxRotationLayout swapping width and height
TAlfRealSize imageSize(iImageDimensions);
TAlfRealSize screenSize(aInfo.ScreenInfo()->iWidth,
aInfo.ScreenInfo()->iHeight);
if ( screenSize.iHeight * imageSize.iWidth
< imageSize.iHeight * screenSize.iWidth )
{
// Screen has wider aspect than image
TReal32 sizeRatioX = (screenSize.iHeight * imageSize.iWidth)
/ (screenSize.iWidth * imageSize.iHeight);
if ( aInfo.iRotation )
{
// Rotated
height *= sizeRatioX;
}
else
{
// Normal
width *= sizeRatioX;
}
}
else
{
// Screen has taller aspect than image
TReal32 sizeRatioY = (screenSize.iWidth * imageSize.iHeight)
/ (screenSize.iHeight * imageSize.iWidth);
if ( aInfo.iRotation )
{
// Rotated
width *= sizeRatioY;
}
else
{
// Normal
height *= sizeRatioY;
}
}
aInfo.iPosition.iX += centre.iX * aInfo.iSize.iX;
aInfo.iPosition.iY += centre.iY * aInfo.iSize.iY;
aInfo.iSize.iX = width;
aInfo.iSize.iY = height;
}
*/
}
// End of File