sl@0: // Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #ifndef SHAPEIMPL_H_
sl@0: #define SHAPEIMPL_H_
sl@0: 
sl@0: #include <e32cmn.h>
sl@0: 
sl@0: /**@file
sl@0: @internalTechnology
sl@0: */
sl@0: 
sl@0: class CFont;
sl@0: class TDesC16;
sl@0: 
sl@0: const TUid KFontGetShaping = {0x10274246};
sl@0: const TUid KFontDeleteShaping = {0x102744D7};
sl@0: 
sl@0: /** Internal class describing shaping information. */
sl@0: class TShapeHeader
sl@0: 	{
sl@0: public:
sl@0: 	/** Number of glyphs output. */
sl@0: 	TInt iGlyphCount;
sl@0: 	/** Number of characters consumed from the input. */
sl@0: 	TInt iCharacterCount;
sl@0: 	/** Reserved for future expansion. */
sl@0: 	TInt iReserved0;
sl@0: 	/** Reserved for future expansion. */
sl@0: 	TInt iReserved1;
sl@0: 	/** The glyph, position and indices data.
sl@0: 
sl@0: 	The first iGlyphCount * 4 bytes contain the glyph codes
sl@0: 	as 2-byte values. The next iGlyphCount * 4 + 4 bytes contain the
sl@0: 	positions in which these glyphs are to be drawn, in pixels, taking
sl@0: 	the original pen position as origin, with the x axis going right and
sl@0: 	the y axis going down. The next iGlyphCount * 2 bytes contain the
sl@0: 	indices of the characters in the input string that correspond to the
sl@0: 	glyphs in the output.
sl@0: 	
sl@0: 	The final entry in the position array is the total advance of the text.
sl@0: 
sl@0: 	Therefore this buffer is actually iGlyphCount * 10 + 4 bytes long. */
sl@0: 	TInt8 iBuffer[1];
sl@0: 	};
sl@0: 
sl@0: /** For CFont::ExtendedFunctions aParam argument, with KFontGetShaping
sl@0: function ID. */
sl@0: class TFontShapeFunctionParameters
sl@0: 	{
sl@0: public:
sl@0: 	/** The text, including context. */
sl@0: 	const TDesC16* iText;
sl@0: 	/** The start of the meat within iText. */
sl@0: 	TInt iStart;
sl@0: 	/** The end of the meat within iText. */
sl@0: 	TInt iEnd;
sl@0: 	/** Script code. */
sl@0: 	TInt iScript;
sl@0: 	/** Language code. 0 for default. */
sl@0: 	TInt iLanguage;
sl@0: 	/** Output from the shaper; a TShapeHeader on the shared heap. */
sl@0: 	const TShapeHeader* iShapeHeaderOutput;
sl@0: 	};
sl@0: 
sl@0: /** For CFont::ExtendedFunctions aParam argument, with KFontDeleteShaping
sl@0: function ID. */
sl@0: class TFontShapeDeleteFunctionParameters
sl@0: 	{
sl@0: public:
sl@0: 	const TShapeHeader* iShapeHeader;
sl@0: 	};
sl@0: 
sl@0: #endif