wxWidgets/include/wx/msw/iniconf.h

105 lines
4.3 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: include/wx/msw/iniconf.h
// Purpose: INI-file based wxConfigBase implementation
// Author: Vadim Zeitlin
// Modified by:
// Created: 27.07.98
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_MSW_INICONF_H_
#define _WX_MSW_INICONF_H_
#if wxUSE_INICONF
// ----------------------------------------------------------------------------
// wxIniConfig is a wxConfig implementation which uses MS Windows INI files to
// store the data. Because INI files don't really support arbitrary nesting of
// groups, we do the following:
// (1) in win.ini file we store all entries in the [vendor] section and
// the value group1/group2/key is mapped to the value group1_group2_key
// in this section, i.e. all path separators are replaced with underscore
// (2) in appname.ini file we map group1/group2/group3/key to the entry
// group2_group3_key in [group1]
//
// Of course, it might lead to indesirable results if '_' is also used in key
// names (i.e. group/key is the same as group_key) and also GetPath() result
// may be not what you would expect it to be.
//
// Another limitation: the keys and section names are never case-sensitive
// which might differ from wxFileConfig it it was compiled with
// wxCONFIG_CASE_SENSITIVE option.
// ----------------------------------------------------------------------------
// for this class, "local" file is the file appname.ini and the global file
// is the [vendor] subsection of win.ini (default for "vendor" is to be the
// same as appname). The file name (strAppName parameter) may, in fact,
// contain the full path to the file. If it doesn't, the file is searched for
// in the Windows directory.
class WXDLLIMPEXP_CORE wxIniConfig : public wxConfigBase
{
public:
// ctor & dtor
// if strAppName doesn't contain the extension and is not an absolute path,
// ".ini" is appended to it. if strVendor is empty, it's taken to be the
// same as strAppName.
wxIniConfig(const wxString& strAppName = wxEmptyString, const wxString& strVendor = wxEmptyString,
const wxString& localFilename = wxEmptyString, const wxString& globalFilename = wxEmptyString, long style = wxCONFIG_USE_LOCAL_FILE);
virtual ~wxIniConfig();
// implement inherited pure virtual functions
virtual void SetPath(const wxString& strPath);
virtual const wxString& GetPath() const;
virtual bool GetFirstGroup(wxString& str, long& lIndex) const;
virtual bool GetNextGroup (wxString& str, long& lIndex) const;
virtual bool GetFirstEntry(wxString& str, long& lIndex) const;
virtual bool GetNextEntry (wxString& str, long& lIndex) const;
virtual size_t GetNumberOfEntries(bool bRecursive = false) const;
virtual size_t GetNumberOfGroups(bool bRecursive = false) const;
virtual bool HasGroup(const wxString& strName) const;
virtual bool HasEntry(const wxString& strName) const;
// return true if the current group is empty
bool IsEmpty() const;
virtual bool Flush(bool bCurrentOnly = false);
virtual bool RenameEntry(const wxString& oldName, const wxString& newName);
virtual bool RenameGroup(const wxString& oldName, const wxString& newName);
virtual bool DeleteEntry(const wxString& Key, bool bGroupIfEmptyAlso = true);
virtual bool DeleteGroup(const wxString& szKey);
virtual bool DeleteAll();
protected:
// read/write
bool DoReadString(const wxString& key, wxString *pStr) const;
bool DoReadLong(const wxString& key, long *plResult) const;
bool DoReadBinary(const wxString& key, wxMemoryBuffer *buf) const;
bool DoWriteString(const wxString& key, const wxString& szValue);
bool DoWriteLong(const wxString& key, long lValue);
bool DoWriteBinary(const wxString& key, const wxMemoryBuffer& buf);
private:
// helpers
wxString GetPrivateKeyName(const wxString& szKey) const;
wxString GetKeyName(const wxString& szKey) const;
wxString m_strLocalFilename; // name of the private INI file
wxString m_strGroup, // current group in appname.ini file
m_strPath; // the rest of the path (no trailing '_'!)
wxDECLARE_NO_COPY_CLASS(wxIniConfig);
DECLARE_ABSTRACT_CLASS(wxIniConfig)
};
#endif // wxUSE_INICONF
#endif //_WX_MSW_INICONF_H_