Class TBGRACustomPenStroker
Unit
Declaration
type TBGRACustomPenStroker = class(TObject)
Description
Generic class representing a pen stroker, used for drawing and styling lines with various attributes
Hierarchy
- TObject
- TBGRACustomPenStroker
Overview
Methods
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function ComputePolygon(const APoints: array of TPointF; AWidth: single): ArrayOfTPointF; virtual; abstract; |
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function ComputePolyline(const APoints: array of TPointF; AWidth: single; APenColor: TBGRAPixel; AClosedCap: boolean = true): ArrayOfTPointF; overload; virtual; abstract; |
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function ComputePolyline(const APoints: array of TPointF; AWidth: single; AClosedCap: boolean = true): ArrayOfTPointF; overload; virtual; abstract; |
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function ComputePolylineAutoCycle(const APoints: array of TPointF; AWidth: single): ArrayOfTPointF; virtual; abstract; |
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function GetArrow: TBGRACustomArrow; virtual; abstract; |
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function GetArrowOwned: boolean; virtual; abstract; |
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function GetCustomPenStyle: TBGRAPenStyle; virtual; abstract; |
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function GetJoinStyle: TPenJoinStyle; virtual; abstract; |
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function GetLineCap: TPenEndCap; virtual; abstract; |
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function GetMiterLimit: single; virtual; abstract; |
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function GetPenStyle: TPenStyle; virtual; abstract; |
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function GetStrokeMatrix: TAffineMatrix; virtual; abstract; |
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procedure SetArrow(AValue: TBGRACustomArrow); virtual; abstract; |
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procedure SetArrowOwned(AValue: boolean); virtual; abstract; |
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procedure SetCustomPenStyle(AValue: TBGRAPenStyle); virtual; abstract; |
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procedure SetJoinStyle(AValue: TPenJoinStyle); virtual; abstract; |
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procedure SetLineCap(AValue: TPenEndCap); virtual; abstract; |
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procedure SetMiterLimit(AValue: single); virtual; abstract; |
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procedure SetPenStyle(AValue: TPenStyle); virtual; abstract; |
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procedure SetStrokeMatrix(const AValue: TAffineMatrix); virtual; abstract; |
Properties
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property Arrow: TBGRACustomArrow read GetArrow write SetArrow; |
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property ArrowOwned: boolean read GetArrowOwned write SetArrowOwned; |
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property CustomPenStyle: TBGRAPenStyle read GetCustomPenStyle write SetCustomPenStyle; |
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property JoinStyle: TPenJoinStyle read GetJoinStyle write SetJoinStyle; |
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property LineCap: TPenEndCap read GetLineCap write SetLineCap; |
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property MiterLimit: single read GetMiterLimit write SetMiterLimit; |
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property StrokeMatrix: TAffineMatrix read GetStrokeMatrix write SetStrokeMatrix; |
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property Style: TPenStyle read GetPenStyle write SetPenStyle; |
Description
Methods
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function ComputePolygon(const APoints: array of TPointF; AWidth: single): ArrayOfTPointF; virtual; abstract; |
Computes a polygon with the given points and width |
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function ComputePolyline(const APoints: array of TPointF; AWidth: single; APenColor: TBGRAPixel; AClosedCap: boolean = true): ArrayOfTPointF; overload; virtual; abstract; |
Computes a polyline with the given points, width, and pen color, optionally closing the cap |
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function ComputePolyline(const APoints: array of TPointF; AWidth: single; AClosedCap: boolean = true): ArrayOfTPointF; overload; virtual; abstract; |
Computes a polyline with the given points and width, optionally closing the cap |
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function ComputePolylineAutoCycle(const APoints: array of TPointF; AWidth: single): ArrayOfTPointF; virtual; abstract; |
Computes a polyline with automatic cycling of points and given width |
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function GetArrow: TBGRACustomArrow; virtual; abstract; |
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function GetArrowOwned: boolean; virtual; abstract; |
Determines if the arrow is owned (managed) by the pen stroker |
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function GetCustomPenStyle: TBGRAPenStyle; virtual; abstract; |
Gets the custom pen style |
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function GetJoinStyle: TPenJoinStyle; virtual; abstract; |
Retrieves the style of line joins (e.g., bevel, miter) |
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function GetLineCap: TPenEndCap; virtual; abstract; |
Retrieves the line cap style (e.g., butt, round) |
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function GetMiterLimit: single; virtual; abstract; |
Gets the miter limit for line joins |
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function GetPenStyle: TPenStyle; virtual; abstract; |
Retrieves the standard pen style |
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function GetStrokeMatrix: TAffineMatrix; virtual; abstract; |
Gets the stroke transformation matrix (applied only to stroke and not to path points) |
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procedure SetArrow(AValue: TBGRACustomArrow); virtual; abstract; |
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procedure SetArrowOwned(AValue: boolean); virtual; abstract; |
Sets whether the arrow is owned by the pen stroker |
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procedure SetCustomPenStyle(AValue: TBGRAPenStyle); virtual; abstract; |
Sets the custom pen style |
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procedure SetJoinStyle(AValue: TPenJoinStyle); virtual; abstract; |
Sets the style of line joins |
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procedure SetLineCap(AValue: TPenEndCap); virtual; abstract; |
Sets the line cap style |
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procedure SetMiterLimit(AValue: single); virtual; abstract; |
Sets the miter limit for line joins |
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procedure SetPenStyle(AValue: TPenStyle); virtual; abstract; |
Sets the standard pen style |
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procedure SetStrokeMatrix(const AValue: TAffineMatrix); virtual; abstract; |
Sets the stroke transformation matrix (applied only to stroke and not to path points) |
Properties
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property Arrow: TBGRACustomArrow read GetArrow write SetArrow; |
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property ArrowOwned: boolean read GetArrowOwned write SetArrowOwned; |
Is the arrow is owned by the pen stroker |
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property CustomPenStyle: TBGRAPenStyle read GetCustomPenStyle write SetCustomPenStyle; |
Custom pen style (with given dash and gap lengths) |
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property JoinStyle: TPenJoinStyle read GetJoinStyle write SetJoinStyle; |
Join style of lines |
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property LineCap: TPenEndCap read GetLineCap write SetLineCap; |
Line cap style |
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property MiterLimit: single read GetMiterLimit write SetMiterLimit; |
Miter limit for line joins |
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property StrokeMatrix: TAffineMatrix read GetStrokeMatrix write SetStrokeMatrix; |
Stroke transformation matrix (applied only to stroke and not to path points) |
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property Style: TPenStyle read GetPenStyle write SetPenStyle; |
Standard pen |