Filter Library

Camera

Interface Physics

ControlRealEdit.h

/*
 * ControlRealEdit.h - a real entry field.
 *
 * This file is part of the Camera Filter Library.
 * Computer Aided Measurement Environment for Realtime Atomic imaging (Camera)
 *
 * Copyright (C) 2004, Leiden Probe Microscopy.
 * Copyright (C) 2004, Universiteit Leiden.
 *
 * Authors: Martin J. Moene (original)
 *
 * $Id: ControlRealEdit.h 202 2005-05-12 11:00:48Z moene $
 */

#ifndef CFL_CONTROLREALEDIT_H
#define CFL_CONTROLREALEDIT_H

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include <cfl/ControlFilterEdit.h>      // for base class CFilterEdit

/**
 * \addtogroup cfl_controlnumedit Numeric Edit Control
 * \brief numeric edit control.
 *
 * @{
 */

DECLARE_CLASS( CRealEdit );             // declare various types for class

/**
 * Class CRealEdit is a text edit field for real number entry and validation.
 *
 * Class CRealEdit provides the following facilities:
 * - accept signed or unsigned numbers (also settable in the constructor), SetSigned()
 * - obtain the current value, GetValue(), operator real()
 * - specify a new value, SetValue(), operator=()
 * - specify the format to display the number in, SetFormat()
 */

class CRealEdit : public CFilterEdit
{
   DECLARE_DYNAMIC( CRealEdit )

   typedef CRealEdit self;              ///< this type

public:
   typedef double real;                 ///< the real number type

   ///
   /// \name Construction
   /// @{

   virtual ~CRealEdit();
   CRealEdit ( bool bSigned = true );

   /// @}
   /// \name Operators
   /// @{

   operator   real () const;

   self& operator= ( real value );

   /// @}
   /// \name Predicates
   /// @{

   /// @}
   /// \name Accessors
   /// @{

   real    GetValue() const;

   /// @}
   /// \name Mutators
   /// @{

   void    SetValue ( real value );

   void    SetSigned( bool bSigned  = true );
   void    SetFormat( const char* fmt = "%g" );

   /// @} 

protected:
   virtual bool Check( const CString &csText ) ;
   virtual bool Match( const CString &csText ) ;

private:
   bool    m_bSigned;                   ///< accept signed numbers
   CString m_csFormat;                  ///< display format
};

/// @} cfl_controlnumedit

/**
 * destructor.
 */

inline CRealEdit::~CRealEdit()
{
   ; // do nothing
}

/**
 * (default) constructor.
 */

inline CRealEdit::CRealEdit ( bool bSigned /* = true */ ) :
   CFilterEdit(), m_bSigned( bSigned ), m_csFormat( "%g" )
{
   ; // do nothing
}

/**
 * convert to real type.
 */

inline CRealEdit::operator CRealEdit::real() const
{
   return GetValue();
}

/**
 * assign real value.
 */

inline CRealEdit::self& CRealEdit::operator= ( real value )
{
   SetValue( value );
   return *this;
}

/**
 * get real value.
 */

inline CRealEdit::real CRealEdit::GetValue() const
{
   return _tcstod( c_str_ptr( *this ), NULL );
}

/**
 * set real value.
 */

inline void CRealEdit::SetValue( real value )
{
   CString txt;
   txt.Format( m_csFormat, value );
   SetWindowText ( txt );
}

/**
 * set number to unsigned, signed (default).
 */

inline void CRealEdit::SetSigned ( bool bSigned /* = true */ )
{
   m_bSigned = bSigned;
}

/**
 * set the presentation format [\%g].
 */

inline void CRealEdit::SetFormat( const char* format /* = "%g" */ )
{
   m_csFormat = format;
}

#endif // CFL_CONTROLREALEDIT_H

/*
 * end of file
 */

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