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1 // Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 #ifndef SHAPEIMPL_H_ |
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17 #define SHAPEIMPL_H_ |
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18 |
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19 #include <e32cmn.h> |
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20 |
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21 /**@file |
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22 @internalTechnology |
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23 */ |
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24 |
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25 class CFont; |
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26 class TDesC16; |
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27 |
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28 const TUid KFontGetShaping = {0x10274246}; |
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29 const TUid KFontDeleteShaping = {0x102744D7}; |
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30 |
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31 /** Internal class describing shaping information. */ |
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32 class TShapeHeader |
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33 { |
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34 public: |
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35 /** Number of glyphs output. */ |
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36 TInt iGlyphCount; |
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37 /** Number of characters consumed from the input. */ |
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38 TInt iCharacterCount; |
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39 /** Reserved for future expansion. */ |
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40 TInt iReserved0; |
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41 /** Reserved for future expansion. */ |
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42 TInt iReserved1; |
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43 /** The glyph, position and indices data. |
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44 |
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45 The first iGlyphCount * 4 bytes contain the glyph codes |
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46 as 2-byte values. The next iGlyphCount * 4 + 4 bytes contain the |
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47 positions in which these glyphs are to be drawn, in pixels, taking |
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48 the original pen position as origin, with the x axis going right and |
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49 the y axis going down. The next iGlyphCount * 2 bytes contain the |
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50 indices of the characters in the input string that correspond to the |
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51 glyphs in the output. |
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52 |
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53 The final entry in the position array is the total advance of the text. |
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54 |
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55 Therefore this buffer is actually iGlyphCount * 10 + 4 bytes long. */ |
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56 TInt8 iBuffer[1]; |
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57 }; |
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58 |
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59 /** For CFont::ExtendedFunctions aParam argument, with KFontGetShaping |
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60 function ID. */ |
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61 class TFontShapeFunctionParameters |
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62 { |
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63 public: |
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64 /** The text, including context. */ |
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65 const TDesC16* iText; |
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66 /** The start of the meat within iText. */ |
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67 TInt iStart; |
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68 /** The end of the meat within iText. */ |
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69 TInt iEnd; |
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70 /** Script code. */ |
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71 TInt iScript; |
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72 /** Language code. 0 for default. */ |
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73 TInt iLanguage; |
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74 /** Output from the shaper; a TShapeHeader on the shared heap. */ |
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75 const TShapeHeader* iShapeHeaderOutput; |
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76 }; |
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77 |
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78 /** For CFont::ExtendedFunctions aParam argument, with KFontDeleteShaping |
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79 function ID. */ |
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80 class TFontShapeDeleteFunctionParameters |
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81 { |
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82 public: |
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83 const TShapeHeader* iShapeHeader; |
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84 }; |
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85 |
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86 #endif |