include/wx/msw/regconf.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/regconf.h
   3 // Purpose:     Registry based implementation of wxConfigBase
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     27.04.98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef   _REGCONF_H
  13 #define   _REGCONF_H
  14
  15 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16 #pragma interface "regconf.h"
  17 #endif
  18
  19 #ifndef   _REGISTRY_H
  20   #include "wx/msw/registry.h"
  21 #endif
  22
  23 #include "wx/object.h"
  24 #include "wx/confbase.h"
  25
  26 // ----------------------------------------------------------------------------
  27 // wxRegConfig
  28 // ----------------------------------------------------------------------------
  29
  30 class WXDLLIMPEXP_BASE wxRegConfig : public wxConfigBase
  31 {
  32 public:
  33   // ctor & dtor
  34     // will store data in HKLM\appName and HKCU\appName
  35   wxRegConfig(const wxString& appName = wxEmptyString,
  36               const wxString& vendorName = wxEmptyString,
  37               const wxString& localFilename = wxEmptyString,
  38               const wxString& globalFilename = wxEmptyString,
  39               long style = wxCONFIG_USE_GLOBAL_FILE);
  40
  41     // dtor will save unsaved data
  42   virtual ~wxRegConfig();
  43
  44   // implement inherited pure virtual functions
  45   // ------------------------------------------
  46
  47   // path management
  48   virtual void SetPath(const wxString& strPath);
  49   virtual const wxString& GetPath() const { return m_strPath; }
  50
  51   // entry/subgroup info
  52     // enumerate all of them
  53   virtual bool GetFirstGroup(wxString& str, long& lIndex) const;
  54   virtual bool GetNextGroup (wxString& str, long& lIndex) const;
  55   virtual bool GetFirstEntry(wxString& str, long& lIndex) const;
  56   virtual bool GetNextEntry (wxString& str, long& lIndex) const;
  57
  58     // tests for existence
  59   virtual bool HasGroup(const wxString& strName) const;
  60   virtual bool HasEntry(const wxString& strName) const;
  61   virtual EntryType GetEntryType(const wxString& name) const;
  62
  63     // get number of entries/subgroups in the current group, with or without
  64     // it's subgroups
  65   virtual size_t GetNumberOfEntries(bool bRecursive = false) const;
  66   virtual size_t GetNumberOfGroups(bool bRecursive = false) const;
  67
  68   virtual bool Flush(bool WXUNUSED(bCurrentOnly) = false) { return true; }
  69
  70   // rename
  71   virtual bool RenameEntry(const wxString& oldName, const wxString& newName);
  72   virtual bool RenameGroup(const wxString& oldName, const wxString& newName);
  73
  74   // delete
  75   virtual bool DeleteEntry(const wxString& key, bool bGroupIfEmptyAlso = true);
  76   virtual bool DeleteGroup(const wxString& key);
  77   virtual bool DeleteAll();
  78
  79 protected:
  80   // opens the local key creating it if necessary and returns it
  81   wxRegKey& LocalKey() const // must be const to be callable from const funcs
  82   {
  83       wxRegConfig* self = wxConstCast(this, wxRegConfig);
  84
  85       if ( !m_keyLocal.IsOpened() )
  86       {
  87           // create on demand
  88           self->m_keyLocal.Create();
  89       }
  90
  91       return self->m_keyLocal;
  92   }
  93
  94   // implement read/write methods
  95   virtual bool DoReadString(const wxString& key, wxString *pStr) const;
  96   virtual bool DoReadLong(const wxString& key, long *plResult) const;
  97
  98   virtual bool DoWriteString(const wxString& key, const wxString& szValue);
  99   virtual bool DoWriteLong(const wxString& key, long lValue);
 100
 101 private:
 102   // no copy ctor/assignment operator
 103   wxRegConfig(const wxRegConfig&);
 104   wxRegConfig& operator=(const wxRegConfig&);
 105
 106   // these keys are opened during all lifetime of wxRegConfig object
 107   wxRegKey  m_keyLocalRoot,  m_keyLocal,
 108             m_keyGlobalRoot, m_keyGlobal;
 109
 110   // current path (not '/' terminated)
 111   wxString  m_strPath;
 112 };
 113
 114 #endif  //_REGCONF_H