117 lines
3.6 KiB
C++
117 lines
3.6 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/validate.h
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// Purpose: wxValidator class
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// Author: Julian Smart
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// Modified by:
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// Created: 29/01/98
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// Copyright: (c) 1998 Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_VALIDATE_H_
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#define _WX_VALIDATE_H_
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#include "wx/defs.h"
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#if wxUSE_VALIDATORS
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#include "wx/event.h"
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class WXDLLIMPEXP_FWD_CORE wxWindow;
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class WXDLLIMPEXP_FWD_CORE wxWindowBase;
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/*
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A validator has up to three purposes:
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1) To validate the data in the window that's associated
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with the validator.
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2) To transfer data to and from the window.
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3) To filter input, using its role as a wxEvtHandler
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to intercept e.g. OnChar.
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Note that wxValidator and derived classes use reference counting.
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*/
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class WXDLLIMPEXP_CORE wxValidator : public wxEvtHandler
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{
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public:
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wxValidator();
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wxValidator(const wxValidator& other)
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: wxEvtHandler()
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, m_validatorWindow(other.m_validatorWindow)
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{
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}
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virtual ~wxValidator();
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// Make a clone of this validator (or return NULL) - currently necessary
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// if you're passing a reference to a validator.
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// Another possibility is to always pass a pointer to a new validator
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// (so the calling code can use a copy constructor of the relevant class).
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virtual wxObject *Clone() const
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{ return NULL; }
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bool Copy(const wxValidator& val)
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{ m_validatorWindow = val.m_validatorWindow; return true; }
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// Called when the value in the window must be validated.
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// This function can pop up an error message.
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virtual bool Validate(wxWindow *WXUNUSED(parent)) { return false; }
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// Called to transfer data to the window
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virtual bool TransferToWindow() { return false; }
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// Called to transfer data from the window
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virtual bool TransferFromWindow() { return false; }
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// accessors
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wxWindow *GetWindow() const { return (wxWindow *)m_validatorWindow; }
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void SetWindow(wxWindowBase *win) { m_validatorWindow = win; }
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// validators beep by default if invalid key is pressed, this function
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// allows to change this
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static void SuppressBellOnError(bool suppress = true)
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{ ms_isSilent = suppress; }
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// test if beep is currently disabled
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static bool IsSilent() { return ms_isSilent; }
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// this function is deprecated because it handled its parameter
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// unnaturally: it disabled the bell when it was true, not false as could
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// be expected; use SuppressBellOnError() instead
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#if WXWIN_COMPATIBILITY_2_8
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static wxDEPRECATED_INLINE(
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void SetBellOnError(bool doIt = true),
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ms_isSilent = doIt;
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)
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#endif
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protected:
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wxWindowBase *m_validatorWindow;
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private:
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static bool ms_isSilent;
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wxDECLARE_DYNAMIC_CLASS(wxValidator);
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wxDECLARE_NO_ASSIGN_CLASS(wxValidator);
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};
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extern WXDLLIMPEXP_DATA_CORE(const wxValidator) wxDefaultValidator;
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#define wxVALIDATOR_PARAM(val) val
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#else // !wxUSE_VALIDATORS
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// wxWidgets is compiled without support for wxValidator, but we still
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// want to be able to pass wxDefaultValidator to the functions which take
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// a wxValidator parameter to avoid using "#if wxUSE_VALIDATORS"
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// everywhere
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class WXDLLIMPEXP_FWD_CORE wxValidator;
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static const wxValidator* const wxDefaultValidatorPtr = NULL;
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#define wxDefaultValidator (*wxDefaultValidatorPtr)
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// this macro allows to avoid warnings about unused parameters when
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// wxUSE_VALIDATORS == 0
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#define wxVALIDATOR_PARAM(val)
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#endif // wxUSE_VALIDATORS/!wxUSE_VALIDATORS
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#endif // _WX_VALIDATE_H_
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