-/*****************************************************************************\
- * Project: CppLib: C++ library for Windows/UNIX platfroms *
- * File: fileconf.h - file based implementation of Config *
- *---------------------------------------------------------------------------*
- * Language: C++ *
- * Platfrom: Any *
- *---------------------------------------------------------------------------*
- * Classes: *
- *---------------------------------------------------------------------------*
- * Author: Vadim Zeitlin zeitlin@dptmaths.ens-cachan.fr> *
- * adapted from earlier class by VZ & Karsten Ballüder *
- * History: *
- * 27.04.98 created *
-\*****************************************************************************/
+///////////////////////////////////////////////////////////////////////////////
+// Name: fileconf.h
+// Purpose: wxFileConfig derivation of wxConfigBase
+// Author: Vadim Zeitlin
+// Modified by:
+// Created: 07.04.98 (adapted from appconf.cpp)
+// RCS-ID: $Id$
+// Copyright: (c) 1997 Karsten Ballüder & Vadim Zeitlin
+// Ballueder@usa.net <zeitlin@dptmaths.ens-cachan.fr>
+// Licence: wxWindows license
+///////////////////////////////////////////////////////////////////////////////
#ifndef _FILECONF_H
#define _FILECONF_H
// ----------------------------------------------------------------------------
/*
- wxFileConfig derives from base Config and implements file based config class,
+ wxFileConfig derives from base Config and implements file based config class,
i.e. it uses ASCII disk files to store the information. These files are
- alternatively called INI, .conf or .rc in the documentation. They are
+ alternatively called INI, .conf or .rc in the documentation. They are
organized in groups or sections, which can nest (i.e. a group contains
subgroups, which contain their own subgroups &c). Each group has some
- number of entries, which are "key = value" pairs. More precisely, the format
+ number of entries, which are "key = value" pairs. More precisely, the format
is:
# comments are allowed after either ';' or '#' (Win/UNIX standard)
and local value is ignored. Of course, the changes are always written to local
file only.
- @@@@ describe environment variable expansion
+ The names of these files can be specified in a number of ways. First of all,
+ you can use the standard convention: using the ctor which takes 'strAppName'
+ parameter will probably be sufficient for 90% of cases. If, for whatever
+ reason you wish to use the files with some other names, you can always use the
+ second ctor.
+
+ wxFileConfig also may automatically expand the values of environment variables
+ in the entries it reads: for example, if you have an entry
+ score_file = $HOME/.score
+ a call to Read(&str, "score_file") will return a complete path to .score file
+ unless the expansion was previousle disabled with SetExpandEnvVars(FALSE) call
+ (it's on by default, the current status can be retrieved with
+ IsExpandingEnvVars function).
*/
-class wxFileConfig : public wxConfig
+class wxFileConfig : public wxConfigBase
{
public:
// construct the "standard" full name for global (system-wide) and
static wxString GetLocalFileName(const char *szFile);
// ctor & dtor
- // if strGlobal is empty, only local config file is used
- wxFileConfig(const wxString& strLocal,
- const wxString& strGlobal = "");
+ // the names of local and global (if not disabled) config files are
+ // constructed using Get{Local|Global}FileName functions described above
+ // (szAppName is just the (short) name of your application)
+ wxFileConfig(const char *szAppName, bool bLocalOnly = FALSE);
+ // this ctor allows you to specify custom names for both files (if strGlobal
+ // isn't a full path, it's considered to be relative to the standard
+ // directory, i.e. /etc under Unix and %windir% under Windows, if strLocal
+ // is not an absolute path, it's considered to be relative to the user's
+ // directory). If either of strings is empty, the corresponding file is not
+ // used.
+ wxFileConfig(const wxString& strLocal, const wxString& strGlobal);
// dtor will save unsaved data
virtual ~wxFileConfig();
virtual void SetPath(const wxString& strPath);
virtual const wxString& GetPath() const { return m_strPath; }
- virtual bool GetFirstGroup(wxString& str, long& lIndex);
- virtual bool GetNextGroup (wxString& str, long& lIndex);
- virtual bool GetFirstEntry(wxString& str, long& lIndex);
- virtual bool GetNextEntry (wxString& str, long& lIndex);
+ 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 uint GetNumberOfEntries(bool bRecursive = FALSE) const;
+ virtual uint GetNumberOfGroups(bool bRecursive = FALSE) const;
+
+ virtual bool HasGroup(const wxString& strName) const;
+ virtual bool HasEntry(const wxString& strName) const;
virtual bool Read(wxString *pstr, const char *szKey,
const char *szDefault = 0) const;
virtual const char *Read(const char *szKey,
const char *szDefault = 0) const;
virtual bool Read(long *pl, const char *szKey, long lDefault) const;
+ virtual long Read(const char *szKey, long lDefault) const
+ { return wxConfigBase::Read(szKey, lDefault); }
virtual bool Write(const char *szKey, const char *szValue);
virtual bool Write(const char *szKey, long lValue);
virtual bool Flush(bool bCurrentOnly = FALSE);
{
public:
// ctor
- LineList(const wxString& str, LineList *pNext = NULL) : m_strLine(str)
- { SetNext(pNext); }
-
- //
+ LineList(const wxString& str, LineList *pNext = NULL) : m_strLine(str)
+ { SetNext(pNext); SetPrev(NULL); }
+
+ //
LineList *Next() const { return m_pNext; }
+ LineList *Prev() const { return m_pPrev; }
void SetNext(LineList *pNext) { m_pNext = pNext; }
+ void SetPrev(LineList *pPrev) { m_pPrev = pPrev; }
//
void SetText(const wxString& str) { m_strLine = str; }
private:
wxString m_strLine; // line contents
- LineList *m_pNext; // next node
+ LineList *m_pNext, // next node
+ *m_pPrev; // previous one
};
-
+
// functions to work with this list
LineList *LineListAppend(const wxString& str);
- LineList *LineListInsert(const wxString& str,
- LineList *pLine); // NULL => Append()
+ LineList *LineListInsert(const wxString& str,
+ LineList *pLine); // NULL => Prepend()
+ void LineListRemove(LineList *pLine);
bool LineListIsEmpty();
private:
- // put the object in the initial state
+ // GetXXXFileame helpers: return ('/' terminated) directory names
+ static wxString GetGlobalDir();
+ static wxString GetLocalDir();
+
+ // common part of all ctors (assumes that m_str{Local|Global}File are already
+ // initialized
void Init();
+ // common part of from dtor and DeleteAll
+ void CleanUp();
+
// parse the whole file
void Parse(wxTextFile& file, bool bLocal);
//protected: --- if wxFileConfig::ConfigEntry is not public, functions in
// ConfigGroup such as Find/AddEntry can't return "ConfigEntry *"
public:
- WX_DEFINE_ARRAY(ConfigEntry *, ArrayEntries);
- WX_DEFINE_ARRAY(ConfigGroup *, ArrayGroups);
+ WX_DEFINE_SORTED_ARRAY(ConfigEntry *, ArrayEntries);
+ WX_DEFINE_SORTED_ARRAY(ConfigGroup *, ArrayGroups);
class ConfigEntry
{
void SetLine(LineList *pLine);
};
-protected:
class ConfigGroup
{
private:
- wxFileConfig *m_pConfig; // config object we belong to
- ConfigGroup *m_pParent; // parent group (NULL for root group)
- ArrayEntries m_aEntries; // entries in this group
- ArrayGroups m_aSubgroups; // subgroups
- wxString m_strName; // group's name
- bool m_bDirty; // if FALSE => all subgroups are not dirty
- LineList *m_pLine; // pointer to our line in the linked list
- ConfigEntry *m_pLastEntry; // last entry of this group in the local file
- ConfigGroup *m_pLastGroup; // last subgroup
+ wxFileConfig *m_pConfig; // config object we belong to
+ ConfigGroup *m_pParent; // parent group (NULL for root group)
+ ArrayEntries m_aEntries; // entries in this group
+ ArrayGroups m_aSubgroups; // subgroups
+ wxString m_strName; // group's name
+ bool m_bDirty; // if FALSE => all subgroups are not dirty
+ LineList *m_pLine; // pointer to our line in the linked list
+ ConfigEntry *m_pLastEntry; // last entry/subgroup of this group in the
+ ConfigGroup *m_pLastGroup; // local file (we insert new ones after it)
+
+ // DeleteSubgroupByName helper
+ bool DeleteSubgroup(ConfigGroup *pGroup);
public:
// ctor
ConfigEntry *FindEntry (const char *szName) const;
// delete entry/subgroup, return FALSE if doesn't exist
- bool DeleteSubgroup(const char *szName);
+ bool DeleteSubgroupByName(const char *szName);
bool DeleteEntry(const char *szName);
// create new entry/subgroup returning pointer to newly created element
// will also recursively set parent's dirty flag
void SetDirty();
void SetLine(LineList *pLine);
-
- // the new entries in this subgroup will be inserted after the last subgroup
- // or, if there is none, after the last entry
- void SetLastEntry(ConfigEntry *pLastEntry) { m_pLastEntry = pLastEntry; }
- void SetLastGroup(ConfigGroup *pLastGroup) { m_pLastGroup = pLastGroup; }
+ //
wxString GetFullName() const;
// get the last line belonging to an entry/subgroup of this group
- LineList *GetGroupLine();
- LineList *GetLastEntryLine();
- LineList *GetLastGroupLine();
+ LineList *GetGroupLine(); // line which contains [group]
+ LineList *GetLastEntryLine(); // after which our subgroups start
+ LineList *GetLastGroupLine(); // after which the next group starts
+
+ // called by entries/subgroups when they're created/deleted
+ void SetLastEntry(ConfigEntry *pEntry) { m_pLastEntry = pEntry; }
+ void SetLastGroup(ConfigGroup *pGroup) { m_pLastGroup = pGroup; }
};
};
projects / wxWidgets.git / blobdiff