Class TFormulaObject

Unit

FormulaManagerUnit

Declaration

type TFormulaObject = class(TComponent)

Description

Hierarchy

TComponent
TFormulaObject

Overview

Fields

	`FPosition: integer;`
	`FExpression: TExpression;`
	`FParser: TRbwParser;`
	`FFormula: string;`
	`FNewSubscriptions: TStringList;`
	`FNotifies: Boolean;`
	`FReferenceCount: integer;`
	`FOnRemoveSubscriptionList: TList;`
	`FOnRestoreSubscriptionList: TList;`
	`FReferenceCountList: TIntegerList;`
	`FSubjectList: TList;`

Methods

	`procedure SetFormula(Value: string);`
	`procedure SetParser(const Value: TRbwParser);`
	`procedure CompileFormula(var Value: string);`
	`function GetFormula: string;`
	`procedure ResetFormula;`
	`function GetExpression: TExpression;`
	`procedure RemoveSubscriptions(OldSubscriptions, NewSubscriptions: TStringList);`
	`procedure RestoreSubscriptions;`
	`procedure FixSubscriptions;`
	`procedure DeleteSubscriptionEvents(OnRemoveSubscription, OnRestoreSubscription: TChangeSubscription; Subject: TObject);`
	`function GetDisplayFormula: string;`
	`procedure Notification(AComponent: TComponent; Operation: TOperation); override;`
	`constructor Create(AOwner: TComponent); override;`
	`destructor Destroy; override;`
	`procedure AddSubscriptionEvents(OnRemoveSubscription, OnRestoreSubscription: TChangeSubscription; Subject: TObject);`

Properties

	`property Expression: TExpression read GetExpression;`
	`property Formula: string read GetFormula;`
	`property DisplayFormula: string read GetDisplayFormula;`
	`property Parser: TRbwParser read FParser write SetParser;`

Description

Fields

	`FPosition: integer;`

	`FExpression: TExpression;`

	`FParser: TRbwParser;`

	`FFormula: string;`

	`FNewSubscriptions: TStringList;`

	`FNotifies: Boolean;`

	`FReferenceCount: integer;`

	`FOnRemoveSubscriptionList: TList;`

	`FOnRestoreSubscriptionList: TList;`

	`FReferenceCountList: TIntegerList;`

	`FSubjectList: TList;`

Methods

	`procedure SetFormula(Value: string);`

	`procedure SetParser(const Value: TRbwParser);`

	`procedure CompileFormula(var Value: string);`

	`function GetFormula: string;`

	`procedure ResetFormula;`

	`function GetExpression: TExpression;`

	`procedure RemoveSubscriptions(OldSubscriptions, NewSubscriptions: TStringList);`
When a TDataArray or TGlobalVariable is being renamed, `RemoveSubscriptions` is called. It removes subscriptions to the items in OldSubscriptions and stores the items in NewSubscriptions for use in RestoreSubscriptions.

	`procedure RestoreSubscriptions;`

	`procedure FixSubscriptions;`

	`procedure DeleteSubscriptionEvents(OnRemoveSubscription, OnRestoreSubscription: TChangeSubscription; Subject: TObject);`

	`function GetDisplayFormula: string;`

	`procedure Notification(AComponent: TComponent; Operation: TOperation); override;`

	`constructor Create(AOwner: TComponent); override;`

	`destructor Destroy; override;`

	`procedure AddSubscriptionEvents(OnRemoveSubscription, OnRestoreSubscription: TChangeSubscription; Subject: TObject);`
if `AddSubscriptionEvents` is called with new events, be sure to update RemoveSubscriptions, RestoreSubscriptions, and FixSubscriptions.

Properties

	`property Expression: TExpression read GetExpression;`

	`property Formula: string read GetFormula;`

	`property DisplayFormula: string read GetDisplayFormula;`

	`property Parser: TRbwParser read FParser write SetParser;`

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