TBLGlyphRun

TBLGlyphRun describes a set of consecutive glyphs and their placements.

TBLGlyphRun should only be used to pass glyph IDs and their placements to the rendering context. The purpose of TBLGlyphRun is to allow rendering glyphs, which could be shaped by various shaping engines (Blend2D, Harfbuzz, etc).

TBLGlyphRun allows to render glyphs that are stored as UInt32[] array or part of a bigger structure (for example hb_glyph_info_t used by HarfBuzz). Glyph placements at the moment use Blend2D's TBLGlyphPlacement or TBLPoint, but it's possible to extend the data type in the future.

Definition

Unit: Blend2D

type TBLGlyphRun = record ... end;

See Also

• TBLGlyphPlacement
• TBLPoint

Properties

Name	Description
Flags	Glyph-run flags.
GlyphAdvance	Advance of GlyphData array.
GlyphData	Glyph id data (abstract, incremented by GlyphAdvance).
GlyphDataAsGlyphIds
IsEmpty
PlacementAdvance	Advance of PlacementData array.
PlacementData	Glyph placement data (abstract, incremented by PlacementAdvance).
PlacementDataAsGlyphPlacements
PlacementDataAsPoints
PlacementType	Type of placement.
Size	Size of the glyph-run in glyph units.

Methods

Name	Description
Reset
ResetGlyphIdData
ResetPlacementData
SetGlyphData(Pointer, ShortInt)
SetGlyphData(PBLGlyphId)
SetPlacementData(Pointer, ShortInt)
SetPlacementData(PBLPoint)
SetPlacementData(PBLGlyphPlacement)

Property Descriptions

Flags

Glyph-run flags.

property Flags: TBLGlyphRunFlags read GetFlags

Type: TBLGlyphRunFlags

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GlyphAdvance

Advance of GlyphData array.

property GlyphAdvance: ShortInt read FGlyphAdvance

Type: ShortInt

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GlyphData

Glyph id data (abstract, incremented by GlyphAdvance).

property GlyphData: Pointer read FGlyphData

Type: Pointer

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GlyphDataAsGlyphIds

property GlyphDataAsGlyphIds: PBLGlyphId read GetGlyphDataAsGlyphIds

Type: PBLGlyphId

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IsEmpty

property IsEmpty: Boolean read GetIsEmpty

Type: Boolean

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PlacementAdvance

Advance of PlacementData array.

property PlacementAdvance: ShortInt read FPlacementAdvance

Type: ShortInt

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PlacementData

Glyph placement data (abstract, incremented by PlacementAdvance).

property PlacementData: Pointer read FPlacementData

Type: Pointer

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PlacementDataAsGlyphPlacements

property PlacementDataAsGlyphPlacements: PBLGlyphPlacement read GetPlacementDataAsGlyphPlacements

Type: PBLGlyphPlacement

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PlacementDataAsPoints

property PlacementDataAsPoints: PBLPoint read GetPlacementDataAsPoints

Type: PBLPoint

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PlacementType

Type of placement.

property PlacementType: TBLGlyphPlacementType read GetPlacementType

Type: TBLGlyphPlacementType

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Size

Size of the glyph-run in glyph units.

property Size: NativeInt read GetSize

Type: NativeInt

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Method Descriptions

Reset

procedure Reset; inline

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ResetGlyphIdData

procedure ResetGlyphIdData; inline

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ResetPlacementData

procedure ResetPlacementData; inline

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SetGlyphData(Pointer, ShortInt)

procedure SetGlyphData(const AData: Pointer; const AAdvance: ShortInt); overload; inline

Parameters

AData: Pointer

AAdvance: ShortInt

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SetGlyphData(PBLGlyphId)

procedure SetGlyphData(const AGlyphData: PBLGlyphId); overload; inline

Parameters

AGlyphData: PBLGlyphId

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SetPlacementData(Pointer, ShortInt)

procedure SetPlacementData(const AData: Pointer; const AAdvance: ShortInt); overload; inline

Parameters

AData: Pointer

AAdvance: ShortInt

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SetPlacementData(PBLPoint)

procedure SetPlacementData(const AData: PBLPoint); overload; inline

Parameters

AData: PBLPoint

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SetPlacementData(PBLGlyphPlacement)

procedure SetPlacementData(const AData: PBLGlyphPlacement); overload; inline

Parameters

AData: PBLGlyphPlacement

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