Class TBGRACustomFillInfo

Fields

Properties

Unit

BGRABitmapTypes

Declaration

type TBGRACustomFillInfo = class(TObject)

Description

Abstract class defining any shape that can be filled

Hierarchy

TObject
TBGRACustomFillInfo

Overview

Methods

	`function CreateIntersectionArray: ArrayOfTIntersectionInfo; virtual; abstract;`
	`function CreateIntersectionInfo: TIntersectionInfo; virtual; abstract;`
	`function GetBounds: TRect; virtual; abstract;`
	`function GetSliceIndex: integer; virtual; abstract;`
	`function IsPointInside(x,y: single; windingMode: boolean): boolean; virtual; abstract;`
	`function SegmentsCurved: boolean; virtual; abstract;`
	`procedure ComputeAndSort(cury: single; var inter: ArrayOfTIntersectionInfo; out nbInter: integer; windingMode: boolean); virtual; abstract;`
	`procedure FreeIntersectionArray(var inter: ArrayOfTIntersectionInfo); virtual; abstract;`

Description

Methods

	`function CreateIntersectionArray: ArrayOfTIntersectionInfo; virtual; abstract;`
Create an array that will contain computed intersections. To augment that array, use CreateIntersectionInfo for new items

	`function CreateIntersectionInfo: TIntersectionInfo; virtual; abstract;`
Create a structure to define one single intersection

	`function GetBounds: TRect; virtual; abstract;`
Returns integer bounds for the shape

	`function GetSliceIndex: integer; virtual; abstract;`
Returns the index of the current slice (horizontal stripe)

	`function IsPointInside(x,y: single; windingMode: boolean): boolean; virtual; abstract;`
Check if the point is inside the shape

	`function SegmentsCurved: boolean; virtual; abstract;`
Returns true if one segment number can represent a curve and thus cannot be considered exactly straight

	`procedure ComputeAndSort(cury: single; var inter: ArrayOfTIntersectionInfo; out nbInter: integer; windingMode: boolean); virtual; abstract;`
Fill an array inter with actual intersections with the shape at the y coordinate cury. nbInter receives the number of computed intersections. windingMode specifies if the winding method must be used to determine what is inside of the shape

	`procedure FreeIntersectionArray(var inter: ArrayOfTIntersectionInfo); virtual; abstract;`
Free an array of intersections