include/wx/gtk/dataform.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        gtk/dataform.h
   3 // Purpose:     declaration of the wxDataFormat class
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     19.10.99 (extracted from gtk/dataobj.h)
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_GTK_DATAFORM_H
  13 #define _WX_GTK_DATAFORM_H
  14
  15 class wxDataFormat
  16 {
  17 public:
  18     // the clipboard formats under GDK are GdkAtoms
  19     typedef GdkAtom NativeFormat;
  20
  21     wxDataFormat();
  22     wxDataFormat( wxDataFormatId type );
  23     wxDataFormat( const wxString &id );
  24     wxDataFormat( const wxChar *id );
  25     wxDataFormat( NativeFormat format );
  26
  27     wxDataFormat& operator=(NativeFormat format)
  28         { SetId(format); return *this; }
  29
  30     // comparison (must have both versions)
  31     bool operator==(NativeFormat format) const
  32         { return m_format == (NativeFormat)format; }
  33     bool operator!=(NativeFormat format) const
  34         { return m_format != (NativeFormat)format; }
  35     bool operator==(wxDataFormatId format) const
  36         { return m_type == (wxDataFormatId)format; }
  37     bool operator!=(wxDataFormatId format) const
  38         { return m_type != (wxDataFormatId)format; }
  39
  40     // explicit and implicit conversions to NativeFormat which is one of
  41     // standard data types (implicit conversion is useful for preserving the
  42     // compatibility with old code)
  43     NativeFormat GetFormatId() const { return m_format; }
  44     operator NativeFormat() const { return m_format; }
  45
  46     void SetId( NativeFormat format );
  47
  48     // string ids are used for custom types - this SetId() must be used for
  49     // application-specific formats
  50     wxString GetId() const;
  51     void SetId( const wxChar *id );
  52
  53     // implementation
  54     wxDataFormatId GetType() const;
  55
  56 private:
  57     wxDataFormatId   m_type;
  58     NativeFormat     m_format;
  59
  60     void PrepareFormats();
  61     void SetType( wxDataFormatId type );
  62 };
  63
  64 #endif // _WX_GTK_DATAFORM_H