graphicsdeviceinterface/directgdiadaptation/swsrc/swdirectgdiengine.cpp
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     1 // Copyright (c) 2007-2009 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 "swdirectgdiengine.h"
       
    17 #include <bitdraworigin.h>
       
    18 #include <bitdrawinterfaceid.h>
       
    19 
       
    20 /**
       
    21 Sets a new pen array
       
    22 
       
    23 @param aPenArray The new array.
       
    24 */ 
       
    25 void CSwDirectGdiEngine::SetPenArray(TInt* aPenArray)
       
    26 	{
       
    27 	delete[] iPenArray;
       
    28 	iPenArray = aPenArray;
       
    29 	}
       
    30 
       
    31 /**
       
    32 Destroys the current pen array.
       
    33 */ 
       
    34 void CSwDirectGdiEngine::ResetPenArray()
       
    35 	{
       
    36 	delete[] iPenArray;
       
    37 	iPenArray = NULL;
       
    38 	}
       
    39 
       
    40 /**
       
    41 Truncates the given rectangle.
       
    42 
       
    43 @param aRect The rectangle to truncate.
       
    44  */ 
       
    45 void CSwDirectGdiEngine::TruncateRect(TRect& aRect)
       
    46 	{
       
    47 	TInt width = iDrawDevice->SizeInPixels().iWidth << 4;
       
    48 	TInt height = iDrawDevice->SizeInPixels().iHeight << 4;
       
    49 
       
    50 	aRect.iTl.iX = Min(aRect.iTl.iX,width);
       
    51 	aRect.iTl.iY = Min(aRect.iTl.iY,height);
       
    52 	aRect.iBr.iX = Min(aRect.iBr.iX,width);
       
    53 	aRect.iBr.iY = Min(aRect.iBr.iY,height);
       
    54 
       
    55 	width = (-width);
       
    56 	height = (-height);
       
    57 
       
    58 	aRect.iTl.iX = Max(aRect.iTl.iX,width);
       
    59 	aRect.iTl.iY = Max(aRect.iTl.iY,height);
       
    60 	aRect.iBr.iX = Max(aRect.iBr.iX,width);
       
    61 	aRect.iBr.iY = Max(aRect.iBr.iY,height);
       
    62 	}
       
    63 
       
    64 /**
       
    65 @see MDirectGdiEngine::GetInterface()
       
    66 */
       
    67 TInt CSwDirectGdiEngine::GetInterface(TUid aInterfaceId, TAny*& aInterface)
       
    68 	{
       
    69 	aInterface = NULL;
       
    70 	TInt err = KErrNotSupported;
       
    71 	
       
    72 	// Extension switch
       
    73 	switch (aInterfaceId.iUid)
       
    74 		{
       
    75 		case KDrawDeviceOriginInterfaceID:
       
    76 			{
       
    77 			aInterface= (MDrawDeviceOrigin*)this;
       
    78 			err=KErrNone;
       
    79 			}
       
    80 		break;
       
    81 		default:;
       
    82 		}
       
    83 		
       
    84 	return err;
       
    85 	}
       
    86