X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0d3820b348955b748fa0ab3076f4ed9763ce4bee..dd3c394ae4e6f6a0041b69e036d4fdf0a085fe39:/include/wx/fileconf.h diff --git a/include/wx/fileconf.h b/include/wx/fileconf.h index a2bbecb415..c4712f7147 100644 --- a/include/wx/fileconf.h +++ b/include/wx/fileconf.h @@ -1,17 +1,14 @@ -/*****************************************************************************\ - * 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 +// Licence: wxWindows license +/////////////////////////////////////////////////////////////////////////////// #ifndef _FILECONF_H #define _FILECONF_H @@ -20,26 +17,30 @@ #pragma interface "fileconf.h" #endif +#include "wx/defs.h" +#include "wx/textfile.h" +#include "wx/string.h" + // ---------------------------------------------------------------------------- // compile options // ---------------------------------------------------------------------------- // it won't compile without it anyhow -#ifndef USE_WXCONFIG - #error "Please define USE_WXCONFIG or remove fileconf.cpp from your makefile" -#endif // USE_WXCONFIG +#ifndef wxUSE_CONFIG + #error "Please define wxUSE_CONFIG or remove fileconf.cpp from your makefile" +#endif // wxUSE_CONFIG // ---------------------------------------------------------------------------- // wxFileConfig // ---------------------------------------------------------------------------- /* - 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) @@ -83,10 +84,50 @@ 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; +class ConfigGroup; +class ConfigEntry; + +// we store all lines of the local config file as a linked list in memory +class LineList +{ +public: + void SetNext(LineList *pNext) { m_pNext = pNext; } + void SetPrev(LineList *pPrev) { m_pPrev = pPrev; } + + // ctor + LineList(const wxString& str, LineList *pNext = (LineList *) NULL) : m_strLine(str) + { SetNext(pNext); SetPrev((LineList *) NULL); } + + // + LineList *Next() const { return m_pNext; } + LineList *Prev() const { return m_pPrev; } + + // + void SetText(const wxString& str) { m_strLine = str; } + const wxString& Text() const { return m_strLine; } + +private: + wxString m_strLine; // line contents + LineList *m_pNext, // next node + *m_pPrev; // previous one +}; -class wxFileConfig : public wxConfig +class wxFileConfig : public wxConfigBase { public: // construct the "standard" full name for global (system-wide) and @@ -103,9 +144,27 @@ public: 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 = ""); + +#if 0 + // 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); +#endif + + // New constructor: one size fits all. Specify wxCONFIG_USE_LOCAL_FILE + // or wxCONFIG_USE_GLOBAL_FILE to say which files should be used. + wxFileConfig(const wxString& appName, const wxString& vendorName = "", + const wxString& localFilename = "", const wxString& globalFilename = "", + long style = wxCONFIG_USE_LOCAL_FILE); + // dtor will save unsaved data virtual ~wxFileConfig(); @@ -113,60 +172,77 @@ public: 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 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 bool Write(const char *szKey, const char *szValue); - virtual bool Write(const char *szKey, long lValue); + 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; + + virtual bool Read(const wxString& key, wxString *pStr) const; + virtual bool Read(const wxString& key, wxString *pStr, const wxString& defValue) const; + virtual bool Read(const wxString& key, long *pl) const; + + // The following are necessary to satisfy the compiler + wxString Read(const wxString& key, const wxString& defVal) const + { return wxConfigBase::Read(key, defVal); } + bool Read(const wxString& key, long *pl, long defVal) const + { return wxConfigBase::Read(key, pl, defVal); } + long Read(const wxString& key, long defVal) const + { return wxConfigBase::Read(key, defVal); } + bool Read(const wxString& key, int *pi, int defVal) const + { return wxConfigBase::Read(key, pi, defVal); } + bool Read(const wxString& key, int *pi) const + { return wxConfigBase::Read(key, pi); } + bool Read(const wxString& key, double* val) const + { return wxConfigBase::Read(key, val); } + bool Read(const wxString& key, double* val, double defVal) const + { return wxConfigBase::Read(key, val, defVal); } + bool Read(const wxString& key, bool* val) const + { return wxConfigBase::Read(key, val); } + bool Read(const wxString& key, bool* val, bool defVal) const + { return wxConfigBase::Read(key, val, defVal); } + + virtual bool Write(const wxString& key, const wxString& szValue); + virtual bool Write(const wxString& key, long lValue); + bool Write(const wxString& key, double value) + { return wxConfigBase::Write(key, value); } + bool Write(const wxString& key, bool value) + { return wxConfigBase::Write(key, value); } + virtual bool Flush(bool bCurrentOnly = FALSE); - virtual bool DeleteEntry(const char *szKey, bool bGroupIfEmptyAlso); - virtual bool DeleteGroup(const char *szKey); + 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); + virtual bool DeleteGroup(const wxString& szKey); virtual bool DeleteAll(); public: - // fwd decl - class ConfigGroup; - class ConfigEntry; - - // we store all lines of the local config file as a linked list in memory - class LineList - { - public: - // ctor - LineList(const wxString& str, LineList *pNext = NULL) : m_strLine(str) - { SetNext(pNext); } - - // - LineList *Next() const { return m_pNext; } - void SetNext(LineList *pNext) { m_pNext = pNext; } - - // - void SetText(const wxString& str) { m_strLine = str; } - const wxString& Text() const { return m_strLine; } - - private: - wxString m_strLine; // line contents - LineList *m_pNext; // next node - }; - // 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 + // GetXXXFileName 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); @@ -185,102 +261,105 @@ private: ConfigGroup *m_pRootGroup, // the top (unnamed) group *m_pCurrentGroup; // the current group -//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); - - class ConfigEntry - { - private: - ConfigGroup *m_pParent; // group that contains us - wxString m_strName, // entry name - m_strValue; // value - bool m_bDirty, // changed since last read? - m_bImmutable; // can be overriden locally? - int m_nLine; // used if m_pLine == NULL only - LineList *m_pLine; // pointer to our line in the linked list - // or NULL if it was found in global file - - public: - ConfigEntry(ConfigGroup *pParent, const wxString& strName, int nLine); - - // simple accessors - const wxString& Name() const { return m_strName; } - const wxString& Value() const { return m_strValue; } - ConfigGroup *Group() const { return m_pParent; } - bool IsDirty() const { return m_bDirty; } - bool IsImmutable() const { return m_bImmutable; } - bool IsLocal() const { return m_pLine != 0; } - int Line() const { return m_nLine; } - LineList *GetLine() const { return m_pLine; } - - // modify entry attributes - void SetValue(const wxString& strValue, bool bUser = TRUE); - void SetDirty(); - 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 - - public: - // ctor - ConfigGroup(ConfigGroup *pParent, const wxString& strName, wxFileConfig *); - - // dtor deletes all entries and subgroups also - ~ConfigGroup(); - - // simple accessors - const wxString& Name() const { return m_strName; } - ConfigGroup *Parent() const { return m_pParent; } - wxFileConfig *Config() const { return m_pConfig; } - bool IsDirty() const { return m_bDirty; } - - bool IsEmpty() const { return Entries().IsEmpty() && Groups().IsEmpty(); } - const ArrayEntries& Entries() const { return m_aEntries; } - const ArrayGroups& Groups() const { return m_aSubgroups; } - - // find entry/subgroup (NULL if not found) - ConfigGroup *FindSubgroup(const char *szName) const; - ConfigEntry *FindEntry (const char *szName) const; - - // delete entry/subgroup, return FALSE if doesn't exist - bool DeleteSubgroup(const char *szName); - bool DeleteEntry(const char *szName); - - // create new entry/subgroup returning pointer to newly created element - ConfigGroup *AddSubgroup(const wxString& strName); - ConfigEntry *AddEntry (const wxString& strName, int nLine = NOT_FOUND); - - // 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(); - }; + WX_DEFINE_SORTED_ARRAY(ConfigEntry *, ArrayEntries); + WX_DEFINE_SORTED_ARRAY(ConfigGroup *, ArrayGroups); +}; + +class ConfigEntry +{ +private: + ConfigGroup *m_pParent; // group that contains us + wxString m_strName, // entry name + m_strValue; // value + bool m_bDirty, // changed since last read? + m_bImmutable; // can be overriden locally? + int m_nLine; // used if m_pLine == NULL only + LineList *m_pLine; // pointer to our line in the linked list + // or NULL if it was found in global file + +public: + ConfigEntry(ConfigGroup *pParent, const wxString& strName, int nLine); + + // simple accessors + const wxString& Name() const { return m_strName; } + const wxString& Value() const { return m_strValue; } + ConfigGroup *Group() const { return m_pParent; } + bool IsDirty() const { return m_bDirty; } + bool IsImmutable() const { return m_bImmutable; } + bool IsLocal() const { return m_pLine != 0; } + int Line() const { return m_nLine; } + LineList *GetLine() const { return m_pLine; } + + // modify entry attributes + void SetValue(const wxString& strValue, bool bUser = TRUE); + void SetDirty(); + void SetLine(LineList *pLine); +}; + +class ConfigGroup +{ +private: + wxFileConfig *m_pConfig; // config object we belong to + ConfigGroup *m_pParent; // parent group (NULL for root group) + wxFileConfig::ArrayEntries m_aEntries; // entries in this group + wxFileConfig::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 + ConfigGroup(ConfigGroup *pParent, const wxString& strName, wxFileConfig *); + + // dtor deletes all entries and subgroups also + ~ConfigGroup(); + + // simple accessors + const wxString& Name() const { return m_strName; } + ConfigGroup *Parent() const { return m_pParent; } + wxFileConfig *Config() const { return m_pConfig; } + bool IsDirty() const { return m_bDirty; } + + const wxFileConfig::ArrayEntries& Entries() const { return m_aEntries; } + const wxFileConfig::ArrayGroups& Groups() const { return m_aSubgroups; } + bool IsEmpty() const { return Entries().IsEmpty() && Groups().IsEmpty(); } + + // find entry/subgroup (NULL if not found) + ConfigGroup *FindSubgroup(const char *szName) const; + ConfigEntry *FindEntry (const char *szName) const; + + // delete entry/subgroup, return FALSE if doesn't exist + bool DeleteSubgroupByName(const char *szName); + bool DeleteEntry(const char *szName); + + // create new entry/subgroup returning pointer to newly created element + ConfigGroup *AddSubgroup(const wxString& strName); + ConfigEntry *AddEntry (const wxString& strName, int nLine = wxNOT_FOUND); + + // will also recursively set parent's dirty flag + void SetDirty(); + void SetLine(LineList *pLine); + + // rename: no checks are done to ensure that the name is unique! + void Rename(const wxString& newName); + + // + wxString GetFullName() const; + + // get the last line belonging to an entry/subgroup of this group + 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; } }; #endif //_FILECONF_H