Symaptic: os/textandloc/fontservices/textshaperplugin/include/SymbianFontInstance.h@260cb5ec6c19

     1 /*

     2 * Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 * SymbianFontInstance.CPP

    16 * Symbian implementation of LEFontInstance

    17 *

    18 */

    21 #ifndef SYMBIANFontInstance_H_

    22 #define SYMBIANFontInstance_H_

    24 #include <stdio.h>

    26 #include "layout/LETypes.h"

    27 #include "layout/LEFontInstance.h"

    29 #include "FontTableCache.h"

    31 #include "sfnt.h"

    32 #include "cmaps.h"

    34 // Symbian includes

    35 #include <gdi.h>

    37 class MOpenFontExtensionInterface;

    39 class SymbianFontInstance : public LEFontInstance, protected FontTableCache

    40 	{

    41 public:

    42 	SymbianFontInstance(CBitmapFont* aBitmapFont, LEErrorCode &status, le_bool aKeepGlyphOfZWJ = false);

    43 	virtual ~SymbianFontInstance();

    44 	void SetSessionHandle(TInt aHandle)

    45 		{

    46 		iSessionHandle = aHandle;

    47 		}

    49 	const void *getFontTable(LETag tableTag) const;

    51 	le_int32 getUnitsPerEM() const

    52 		{

    53 		return fUnitsPerEM;

    54 		}

    56 	le_int32 getAscent() const

    57 		{

    58 		return fAscent;

    59 		}

    61 	le_int32 getDescent() const

    62 		{

    63 		return fDescent;

    64 		}

    66 	le_int32 getLeading() const

    67 		{

    68 		return fLeading;

    69 		}

    71 	LEGlyphID mapCharToGlyph(LEUnicode32 ch) const

    72 		{

    73 		// 1922 mlyl -->

    74 		if (ch == 0x200D && !iKeepGlyphOfZWJ)

    75 			return 1;

    76 		else

    77 		// <-- 1922 mlyl

    78 			return fCMAPMapper->unicodeToGlyph(ch);

    79 		}

    81 	void getGlyphAdvance(LEGlyphID glyph, LEPoint &advance) const;

    83 	le_bool getGlyphPoint(LEGlyphID glyph, le_int32 pointNumber, LEPoint &point) const;

    85 	void transformFunits(float xFunits, float yFunits, LEPoint &pixels) const;

    86 	float xUnitsToPoints(float xUnits) const;

    87 	float yUnitsToPoints(float yUnits) const;

    88 	float getXPixelsPerEm() const;

    89 	float getYPixelsPerEm() const;

    90 	float getScaleFactorX() const;

    91 	float getScaleFactorY() const;

    93 protected:

    94 	const void *readFontTable(LETag tableTag) const;

    96 private:

    97 	FILE *fFile;

    99 	le_int32 fUnitsPerEM;

   100 	le_int32 fAscent;

   101 	le_int32 fDescent;

   102 	le_int32 fLeading;

   104 	const SFNTDirectory *fDirectory;

   105 	le_uint16 fDirPower;

   106 	le_uint16 fDirExtra;

   108 	float fXPixelsPerEm;

   109 	float fYPixelsPerEm;

   111 	float fDeviceScaleX;

   112 	float fDeviceScaleY;

   114 	CMAPMapper *fCMAPMapper;

   116 	const HMTXTable *fHMTXTable;

   117 	le_uint16 fNumGlyphs;

   118 	le_uint16 fNumLongHorMetrics;

   120 	CBitmapFont* iFont;

   121 	MOpenFontShapingExtension* iExtensionInterface;

   122 	MOpenFontTrueTypeExtension* iTrueTypeExtensionInterface;

   123 	TInt iSessionHandle;

   125 	// --> 1922 mlyl: The script which this shaper will shape

   126 	le_bool iKeepGlyphOfZWJ;

   127 	// <-- 1922 mlyl

   129 	static le_int8 highBit(le_int32 value);

   131 	const DirectoryEntry *findTable(LETag tag) const;

   132 	const void *readTable(LETag tag, le_uint32 *length) const;

   133 	void deleteTable(const void *table) const;

   134 	void getMetrics();

   136 	CMAPMapper *findUnicodeMapper();

   137 	};

   139 #endif

author	sl
	Tue, 10 Jun 2014 14:32:02 +0200
changeset 1	260cb5ec6c19
permissions	-rw-r--r--