Class TBGRAAffineScannerTransform

Unit

Declaration

type TBGRAAffineScannerTransform = class(TBGRACustomScanner)

Description

Scanner that transforms any other scanner. To use it, create this object with a scanner as parameter, call transformation procedures, and finally, use the newly created object as a scanner.

You can transform a gradient or a bitmap. See TBGRAAffineBitmapTransform for bitmap specific transformation.

Hierarchy

Overview

Fields

Protected FCur: TPointF;
Protected FEmptyMatrix: Boolean;
Protected FMatrix: TAffineMatrix;
Protected FScanAtFunc: TScanAtFunction;
Protected FScanner: IBGRAScanner;
Public GlobalOpacity: Byte;

Methods

Public constructor Create(AScanner: IBGRAScanner);
Public function GetScanCustomColorspace: TColorspaceAny; override;
Public function ScanAt(X, Y: Single): TBGRAPixel; override;
Public function ScanNextPixel: TBGRAPixel; override;
Protected function GetViewMatrix: TAffineMatrix;
Protected function InternalScanCurrentPixel: TBGRAPixel; virtual;
Public procedure Fit(Origin,HAxis,VAxis: TPointF); virtual;
Public procedure Invert;
Public procedure MultiplyBy(AMatrix: TAffineMatrix);
Public procedure Reset;
Public procedure RotateDeg(AngleCW: Single);
Public procedure RotateRad(AngleCCW: Single);
Public procedure Scale(factor: single); overload;
Public procedure Scale(sx,sy: single); overload;
Public procedure ScanMoveTo(X, Y: Integer); override;
Public procedure ScanMoveToF(X, Y: single); inline;
Public procedure ScanSkipPixels(ACount: integer); override;
Public procedure Translate(OfsX,OfsY: Single);
Protected procedure SetMatrix(AMatrix: TAffineMatrix);
Protected procedure SetViewMatrix(AValue: TAffineMatrix);

Properties

Public property Matrix: TAffineMatrix read FMatrix write SetMatrix;
Public property ViewMatrix: TAffineMatrix read GetViewMatrix write SetViewMatrix;

Description

Fields

Protected FCur: TPointF;

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Protected FEmptyMatrix: Boolean;

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Protected FMatrix: TAffineMatrix;

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Protected FScanAtFunc: TScanAtFunction;

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Protected FScanner: IBGRAScanner;

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Public GlobalOpacity: Byte;

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Methods

Public constructor Create(AScanner: IBGRAScanner);

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Public function GetScanCustomColorspace: TColorspaceAny; override;

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Public function ScanAt(X, Y: Single): TBGRAPixel; override;

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Public function ScanNextPixel: TBGRAPixel; override;

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Protected function GetViewMatrix: TAffineMatrix;

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Protected function InternalScanCurrentPixel: TBGRAPixel; virtual;

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Public procedure Fit(Origin,HAxis,VAxis: TPointF); virtual;

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Public procedure Invert;

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Public procedure MultiplyBy(AMatrix: TAffineMatrix);

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Public procedure Reset;

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Public procedure RotateDeg(AngleCW: Single);

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Public procedure RotateRad(AngleCCW: Single);

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Public procedure Scale(factor: single); overload;

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Public procedure Scale(sx,sy: single); overload;

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Public procedure ScanMoveTo(X, Y: Integer); override;

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Public procedure ScanMoveToF(X, Y: single); inline;

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Public procedure ScanSkipPixels(ACount: integer); override;

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Public procedure Translate(OfsX,OfsY: Single);

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Protected procedure SetMatrix(AMatrix: TAffineMatrix);

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Protected procedure SetViewMatrix(AValue: TAffineMatrix);

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Properties

Public property Matrix: TAffineMatrix read FMatrix write SetMatrix;

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Public property ViewMatrix: TAffineMatrix read GetViewMatrix write SetViewMatrix;

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