TGlyphSelectionState Class Reference
| class TGlyphSelectionState |
This container class holds the data for glyph selection algorithm and is used to pass this data around the algorithm methods.
Constructor & Destructor Documentation
TGlyphSelectionState(TUtf32Iterator &, const CFont *, CFont::TPositionParam &)
Member Functions Documentation
AppendGlyphToCluster(TUint)
This common method is used by glyph selector classes to add a glyph to the end of the aGss.iParam output field filling in all the glyph info needed.
Parameters
| TUint code | The Unicode character for which a glyph should be appended. |
CombineLastGlyphToBase(const TRect &, TInt)
| void | CombineLastGlyphToBase | ( | const TRect & | aBase, |
| | TInt | aFirstDiacritic |
| | ) | |
This method is called to attach (by adjusing its bounding box) the current end glyph in the output array of iParam to the base glyph bounding box based on the Unicode combining class of the character.
Parameters
| const TRect & aBase | |
| TInt aFirstDiacritic | Which character in the output array to treat as the first diacritic of the cluster. Usually 1, but can be more if the base class is a ligature. |
IsCombiningClass()
|
TBool
| IsCombiningClass | ( | ) | [inline] |
Member Enumerations Documentation
Enum TGlyphClusterStateOverride
These enumeration values are used by the glyph selector classes to indicated back to the glyph selection algorithm when they find a cluster complete.
Enumerators
| EGClusterComplete | |
| EGClusterNotComplete | |
Enum TGlyphPostCombine
These enumeration values are used by the glyph selector classes to decide whether post combining is needed to combine the diacritic to the base character.
Enumerators
| EGPostCombine_No | |
| EGPostCombine_Yes | |
Enum TPenAdvance
Enum used in glyph selection code indicating if a pen advance is needed following the processing of the current glyph.
Enumerators
| EPenAdvance_No | |
| EPenAdvance_Yes | |
Member Data Documentation
TGlyphClusterStateOverride
iClusterState
Result from the glyph selector class as to whether it thinks the cluster is complete or incomplete.
TUint
iCodePt
The properties of the current character being processed
const CFont * iFont
The font to select glyphs from
TGlyphPostCombine
iGlyphPostCombine
Result from the glyph selector class as to whether it needs to combine the diacritic with the base character.
TInt
iLigaturePortionFirstMark
|
TInt
| iLigaturePortionFirstMark |
Can be used in any way or not at all by the processing function. It is not initialised. Suggested use is to record the position in the output glyph array of the first diacritic on this portion of the ligature.
TInt
iLigaturePortionsRemaining
|
TInt
| iLigaturePortionsRemaining |
Can be used in any way or not at all by the processing function. It is set to 0 on intitialisation. Suggested use is to pass information about which part of a ligature is currently having diacritics attatched to it.
CFont::TPositionParam & iParam
The in/out parameter data to the glyph selection code from outside
TPenAdvance
iPen
These hold the possible pen advance and if it should be applied
TUtf32Iterator & iText
The Unicode iterator to the text processed
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