Class TSFBitMask

Unit

Declaration

type TSFBitMask = class(TX3DSingleField)

Description

Warning: this symbol is deprecated.

VRML 1.0 (deprecated) field representing a bitmask, where a number of "flags" can be "on" or "off". This is deprecated, as VRML 1.0 is an ancient format now.

Hierarchy

Overview

Methods

Public function FlagsCount: integer;
Public procedure ParseValue(Lexer: TX3DLexer; Reader: TX3DReader); override;
Public function AreAllFlags(value: boolean): boolean;
Public constructor Create(const AParentNode: TX3DFileItem; const AExposed: boolean; const AName: string; const AFlagNames: array of string; const ANoneString, AAllString: string; const AFlags: array of boolean);
Public destructor Destroy; override;
Public function Equals(SecondValue: TX3DField): boolean; override;
Public procedure Assign(Source: TPersistent); override;
Public procedure AssignValue(Source: TX3DField); override;
Public class function X3DType: string; override;

Properties

Public property Flags[i:integer]: boolean read GetFlags write SetFlags;
Public property FlagNames[i:integer]: string read GetFlagNames;
Public property AllString: string read fAllString;
Public property NoneString: string read fNoneString;

Description

Methods

Public function FlagsCount: integer;
 
Public procedure ParseValue(Lexer: TX3DLexer; Reader: TX3DReader); override;
 
Public function AreAllFlags(value: boolean): boolean;

Are all flag values set to True currently.

Public constructor Create(const AParentNode: TX3DFileItem; const AExposed: boolean; const AName: string; const AFlagNames: array of string; const ANoneString, AAllString: string; const AFlags: array of boolean);

Constructor.

Remember that arrays AFlagNames and AFlags (AFlags is initial value of Flags) must have equal length. Eventually, AFlags may be longer (excessive items will be ignored).

Public destructor Destroy; override;
 
Public function Equals(SecondValue: TX3DField): boolean; override;
 
Public procedure Assign(Source: TPersistent); override;
 
Public procedure AssignValue(Source: TX3DField); override;
 
Public class function X3DType: string; override;
 

Properties

Public property Flags[i:integer]: boolean read GetFlags write SetFlags;

Value of this field. You can use Index from the range 0 .. FlagsCount - 1.

Public property FlagNames[i:integer]: string read GetFlagNames;

Names of the flags that can be "on" or "off". Note that this cannot be initialized by CreateUndefined, so you always must initialize this field using the Create overload that takes AFlagNames parameter.

Public property AllString: string read fAllString;

Special strings that will be understood by parser as ALL or NONE bit values. AllString selects all flags, NoneString selects none. AllString may be '' is there's no such string, NoneString should never be '' (otherwise, user could not be able to specify some SFBitMask values — NoneString is the only way to specify 0).

There is usually little sense in using them like "ALL | something" (because it means just "ALL") or "NONE | something" (because it means just "something"). But it's allowed syntactically.

Public property NoneString: string read fNoneString;
 

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