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os/graphics/windowing/windowserver/nga/SERVER/devicemap.cpp
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib. 
     1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #include "devicemap.h"

    17 #include <graphics/wsscreendevice.h>

    18 

    19 CGraphicsDeviceMap* CGraphicsDeviceMap::NewL(const MWsScreenDevice& aScreenDevice)

    20 	{

    21 	return new(ELeave) CGraphicsDeviceMap(aScreenDevice);

    22 	}

    23 

    24 CGraphicsDeviceMap::CGraphicsDeviceMap(const MWsScreenDevice& aScreenDevice) : iScreenDevice(&aScreenDevice)

    25 	{

    26 	}

    27 

    28 TInt CGraphicsDeviceMap::HorizontalTwipsToPixels(TInt aTwips) const

    29 	{

    30 	TInt htp = iScreenDevice->SizeInTwips().iWidth;	//horizontal twips	

    31 	TInt htptp = (htp * 1000)/ iScreenDevice->SizeInPixels().iWidth; //horizontal twips per thousand pixels

    32 	return (1000 * aTwips + (htptp >> 1)) / htptp;

    33 	}

    34 

    35 TInt CGraphicsDeviceMap::VerticalTwipsToPixels(TInt aTwips) const

    36 	{

    37 	TInt vtp = iScreenDevice->SizeInTwips().iHeight;	//vertical twips	

    38 	TInt vtptp = (vtp * 1000)/ iScreenDevice->SizeInPixels().iHeight; //vertical twips per thousand pixels

    39 	return (1000 * aTwips + (vtptp >> 1)) / vtptp;

    40 	}

    41 

    42 TInt CGraphicsDeviceMap::HorizontalPixelsToTwips(TInt aPixels) const

    43 	{

    44 	TInt htp = iScreenDevice->SizeInTwips().iWidth;	//horizontal twips	

    45 	TInt htptp = (htp * 1000)/ iScreenDevice->SizeInPixels().iWidth; //horizontal twips per thousand pixels

    46 	return (htptp * aPixels + 500) / 1000;

    47 	}

    48 

    49 TInt CGraphicsDeviceMap::VerticalPixelsToTwips(TInt aPixels) const

    50 	{

    51 	TInt vtp = iScreenDevice->SizeInTwips().iHeight;	//vertical twips	

    52 	TInt vtptp = (vtp * 1000)/ iScreenDevice->SizeInPixels().iHeight; //vertical twips per thousand pixels

    53 	return (vtptp * aPixels + 500) / 1000;

    54 	}

    55 

    56 TPoint CGraphicsDeviceMap::TwipsToPixels(const TPoint& aTwipPoint) const

    57 	{

    58 	return TPoint(HorizontalTwipsToPixels(aTwipPoint.iX),VerticalTwipsToPixels(aTwipPoint.iY));

    59 	}

    60 

    61 TRect CGraphicsDeviceMap::TwipsToPixels(const TRect& aTwipRect) const

    62 	{

    63 	return TRect(TwipsToPixels(aTwipRect.iTl),TwipsToPixels(aTwipRect.iBr));

    64 	}

    65 

    66 TPoint CGraphicsDeviceMap::PixelsToTwips(const TPoint& aPixelPoint) const

    67 	{

    68 	return TPoint(HorizontalPixelsToTwips(aPixelPoint.iX),VerticalPixelsToTwips(aPixelPoint.iY));

    69 	}

    70 

    71 TRect CGraphicsDeviceMap::PixelsToTwips(const TRect& aPixelRect) const

    72 	{

    73 	return TRect(PixelsToTwips(aPixelRect.iTl),PixelsToTwips(aPixelRect.iBr));

    74 	}
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