Class TSFBitMask

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Are all flag values set to True currently.

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).

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This item has no description. Showing description inherited from TX3DField.Equals.

True if the SecondValue object has exactly the same type and properties. For this class, this returns just (SecondValue.Name = Name).

All descendants (that add some property that should be compared) should override this like

Result := (inherited Equals(SecondValue)) and
  (SecondValue is TMyType) and
  (TMyType(SecondValue).MyProperty = MyProperty);

The floating-point fields may be compared with a small epsilon tolerance by this method.

Note that this *doesn't* compare the default values of two fields instances. This compares only the current values of two fields instances, and eventually some other properties that affect parsing (like names for TSFEnum and TSFBitMask) or allowed future values (like TSFFloat.MustBeNonnegative).

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This item has no description. Showing description inherited from TX3DField.AssignValue.

Copies the current field value. Contrary to TPersistent.Assign, this doesn't copy the rest of properties.

After setting, our ValueFromIsClause is always changed to False. You can manually change it to True, if this copy indeed was done following "IS" clause.

Descendants implementors notes:

In this class, implementation takes care of setting our ValueFromIsClause to False. In descendants, you should do like

if Source is <appropriate class> then
begin
  inherited;
  Value := Source.value;
end else
  AssignValueRaiseInvalidClass(Source);

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Field type in X3D, like 'SFString' or 'MFInt32'. As for VRML/X3D interface declaration statements. In base TX3DField class, this returns XFAny (name indicating any type, used by instantreality and us).

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

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.

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.

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