X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e54c96f187f46c06bd36be8cd52b35c19884aa2b..4cfcb00f0076acc87833f52ecde7c9fdbfc16f78:/interface/validate.h?ds=sidebyside diff --git a/interface/validate.h b/interface/validate.h index ad1376d864..b4f1a07831 100644 --- a/interface/validate.h +++ b/interface/validate.h @@ -15,27 +15,30 @@ A validator has three major roles: - to transfer data from a C++ variable or own storage to and from a control; - to validate data in a control, and show an appropriate error message; - to filter events (such as keystrokes), thereby changing the behaviour of the - associated control. + @li to transfer data from a C++ variable or own storage to and from a control; + @li to validate data in a control, and show an appropriate error message; + @li to filter events (such as keystrokes), thereby changing the behaviour of the + associated control. Validators can be plugged into controls dynamically. - To specify a default, 'null' validator, use the symbol @b wxDefaultValidator. + To specify a default, 'null' validator, use the symbol ::wxDefaultValidator. - For more information, please see @ref overview_validatoroverview "Validator - overview". + For more information, please see @ref overview_validator. - @b wxPython note: If you wish to create a validator class in wxPython you should + @beginWxPythonOnly + If you wish to create a validator class in wxPython you should derive the class from @c wxPyValidator in order to get Python-aware capabilities for the various virtual methods. + @endWxPythonOnly @library{wxcore} @category{validator} - @see @ref overview_validatoroverview "Validator overview", wxTextValidator, - wxGenericValidator, + @stdobjects + ::wxDefaultValidator + + @see @ref overview_validator, wxTextValidator, wxGenericValidator */ class wxValidator : public wxEvtHandler { @@ -51,13 +54,15 @@ public: ~wxValidator(); /** - All validator classes must implement the @b Clone function, which returns - an identical copy of itself. This is because validators are passed to control - constructors as references which must be copied. Unlike objects such as pens - and brushes, it does not make sense to have a reference counting scheme - to do this cloning, because all validators should have separate - data. - This base function returns @NULL. + All validator classes must implement the Clone() function, which returns + an identical copy of itself. + + This is because validators are passed to control constructors as references + which must be copied. Unlike objects such as pens and brushes, it does not + make sense to have a reference counting scheme to do this cloning, because + all validators should have separate data. + + @returns this base function returns @NULL. */ virtual wxObject* Clone() const; @@ -79,23 +84,31 @@ public: /** This overridable function is called when the value in the window must be - transferred to the validator. Return @false if there is a problem. + transferred to the validator. + + @return @false if there is a problem. */ - virtual bool TransferToWindow(); + virtual bool TransferFromWindow(); /** This overridable function is called when the value associated with the - validator must be - transferred to the window. Return @false if there is a problem. + validator must be transferred to the window. + + @return @false if there is a problem. */ virtual bool TransferToWindow(); /** This overridable function is called when the value in the associated window must be validated. - Return @false if the value in the window is not valid; you may pop up an error - dialog. + + @return @false if the value in the window is not valid; you may pop up an error + dialog. */ virtual bool Validate(wxWindow* parent); }; +/** + An empty wxValidator instance. +*/ +wxValidator wxDefaultValidator;