Class TBGRACustomPath

Description

Hierarchy

Fields

Methods

Properties

Unit

BGRABitmapTypes

Declaration

type TBGRACustomPath = class(IBGRAPath)

Description

Generic class representing a path, providing methods for creation and exploration

Hierarchy

IInterface
IBGRAPath
TBGRACustomPath

Overview

Methods

	`constructor Create; virtual; abstract;`
	`function getCursor: TBGRACustomPathCursor; virtual; abstract;`
	`function getLength: single; virtual; abstract;`
	`function getPoints(AMatrix: TAffineMatrix): ArrayOfTPointF; overload; virtual; abstract;`
	`function getPoints: ArrayOfTPointF; overload; virtual; abstract;`
	`function QueryInterface(const IID: TGUID; out Obj): HResult; cdecl;`
	`function _AddRef: Integer; cdecl;`
	`function _Release: Integer; cdecl;`
	`procedure arc(constref arcDef: TArcDef); virtual; abstract;`
	`procedure beginPath; virtual; abstract;`
	`procedure bezierCurveTo(constref cp1, cp2, pt: TPointF); virtual; abstract;`
	`procedure closedSpline(const pts: array of TPointF; style: TSplineStyle); virtual; abstract;`
	`procedure closePath; virtual; abstract;`
	`procedure copyTo(dest: IBGRAPath); virtual; abstract;`
	`procedure lineTo(constref pt: TPointF); virtual; abstract;`
	`procedure moveTo(constref pt: TPointF); virtual; abstract;`
	`procedure openedSpline(const pts: array of TPointF; style: TSplineStyle); virtual; abstract;`
	`procedure polylineTo(const pts: array of TPointF); virtual; abstract;`
	`procedure quadraticCurveTo(constref cp, pt: TPointF); virtual; abstract;`
	`procedure fill(AFillProc: TBGRAPathFillProc; AData: pointer); overload; virtual; abstract;`
	`procedure fill(AFillProc: TBGRAPathFillProc; const AMatrix: TAffineMatrix; AData: pointer); overload; virtual; abstract;`
	`procedure stroke(ADrawProc: TBGRAPathDrawProc; AData: pointer); overload; virtual; abstract;`
	`procedure stroke(ADrawProc: TBGRAPathDrawProc; const AMatrix: TAffineMatrix; AData: pointer); overload; virtual; abstract;`

Description

Methods

	`constructor Create; virtual; abstract;`
Constructor to `create` a custom path. Must be overridden in subclasses

	`function getCursor: TBGRACustomPathCursor; virtual; abstract;`
Retrieves a cursor for navigating the path

	`function getLength: single; virtual; abstract;`
Retrieves the length of the path

	`function getPoints(AMatrix: TAffineMatrix): ArrayOfTPointF; overload; virtual; abstract;`
Retrieves the points of the path, transformed by a specified matrix

	`function getPoints: ArrayOfTPointF; overload; virtual; abstract;`
Retrieves the points of the path

	`function QueryInterface(const IID: TGUID; out Obj): HResult; cdecl;`
This item has no description.

	`function _AddRef: Integer; cdecl;`
This item has no description.

	`function _Release: Integer; cdecl;`
This item has no description.

	`procedure arc(constref arcDef: TArcDef); virtual; abstract;`
Adds an `arc` to the path based on an `arc` definition

	`procedure beginPath; virtual; abstract;`
Begins a new path

	`procedure bezierCurveTo(constref cp1, cp2, pt: TPointF); virtual; abstract;`
Adds a cubic Bézier curve to the path

	`procedure closedSpline(const pts: array of TPointF; style: TSplineStyle); virtual; abstract;`
Adds a closed spline to the path based on a series of points and a spline style

	`procedure closePath; virtual; abstract;`
Closes the current path

	`procedure copyTo(dest: IBGRAPath); virtual; abstract;`
Copies the path to another path object

	`procedure lineTo(constref pt: TPointF); virtual; abstract;`
Adds a line from the current point to a specified point

	`procedure moveTo(constref pt: TPointF); virtual; abstract;`
Moves the current point to a specified location, starting a new sub-path

	`procedure openedSpline(const pts: array of TPointF; style: TSplineStyle); virtual; abstract;`
Adds an open spline to the path based on a series of points and a spline style

	`procedure polylineTo(const pts: array of TPointF); virtual; abstract;`
Adds a series of lines to the path based on an array of points

	`procedure quadraticCurveTo(constref cp, pt: TPointF); virtual; abstract;`
Adds a quadratic Bézier curve to the path

	`procedure fill(AFillProc: TBGRAPathFillProc; AData: pointer); overload; virtual; abstract;`
Fills the path with a specified filling procedure

	`procedure fill(AFillProc: TBGRAPathFillProc; const AMatrix: TAffineMatrix; AData: pointer); overload; virtual; abstract;`
Fills the path with a specified filling procedure and transformation matrix

	`procedure stroke(ADrawProc: TBGRAPathDrawProc; AData: pointer); overload; virtual; abstract;`
Strokes the path with a specified drawing procedure

	`procedure stroke(ADrawProc: TBGRAPathDrawProc; const AMatrix: TAffineMatrix; AData: pointer); overload; virtual; abstract;`
Strokes the path with a specified drawing procedure and transformation matrix