X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/26ac5fadeaa4081fb0e19909d6152f75c64090bb..2d08140fdbb3aaab9457287b49e877ecf3b8b790:/include/wx/confbase.h diff --git a/include/wx/confbase.h b/include/wx/confbase.h index 619589b04c..fb9f8f7127 100644 --- a/include/wx/confbase.h +++ b/include/wx/confbase.h @@ -1,7 +1,7 @@ /////////////////////////////////////////////////////////////////////////////// // Name: confbase.h // Purpose: declaration of the base class of all config implementations -// (see also: fileconf.h and msw/regconf.h) +// (see also: fileconf.h and msw/regconf.h and iniconf.h) // Author: Karsten Ballüder & Vadim Zeitlin // Modified by: // Created: 07.04.98 (adapted from appconf.h) @@ -18,14 +18,11 @@ #pragma interface "confbase.h" #endif -// ---------------------------------------------------------------------------- -// compile options -// ---------------------------------------------------------------------------- +#include "wx/defs.h" + +#if wxUSE_CONFIG -// it won't compile without it anyhow -#ifndef USE_WXCONFIG - #error "Please define USE_WXCONFIG or remove config.cpp from your makefile" -#endif // USE_WXCONFIG +#include "wx/string.h" // ---------------------------------------------------------------------------- // constants @@ -47,32 +44,24 @@ #define wxCONFIG_IMMUTABLE_PREFIX '!' #endif -/// should we use registry instead of configuration files under Win32? +/// should we use registry instead of configuration files under Windows? // (i.e. whether wxConfigBase::Create() will create a wxFileConfig (if it's // FALSE) or wxRegConfig (if it's true and we're under Win32) or wxIniConfig // (under Win16)) -#ifndef wxCONFIG_WIN32_NATIVE - #define wxCONFIG_WIN32_NATIVE TRUE +#ifndef wxUSE_CONFIG_NATIVE + #define wxUSE_CONFIG_NATIVE 1 #endif -// ---------------------------------------------------------------------------- -// various helper global functions -// ---------------------------------------------------------------------------- - -/* - Replace environment variables ($SOMETHING) with their values. The format is - $VARNAME or ${VARNAME} where VARNAME contains alphanumeric characters and - '_' only. '$' must be escaped ('\$') in order to be taken literally. - */ -extern wxString wxExpandEnvVars(const wxString &sz); - -/* - Split path into parts removing '..' in progress - */ -extern void wxSplitPath(wxArrayString& aParts, const char *sz); +// Style flags for constructor style parameter +enum +{ + wxCONFIG_USE_LOCAL_FILE = 1, + wxCONFIG_USE_GLOBAL_FILE = 2, + wxCONFIG_USE_RELATIVE_PATH = 4 +}; // ---------------------------------------------------------------------------- -// abstract base class wxConfigBase which defines the interface for derived +// abstract base class wxConfigBase which defines the interface for derived // classes // // wxConfig organizes the items in a tree-like structure (modeled after the @@ -80,28 +69,49 @@ extern void wxSplitPath(wxArrayString& aParts, const char *sz); // There is always one current group given by the current path. // // Keys are pairs "key_name = value" where value may be of string or integer -// (long) type (@@@ doubles and other types such as wxDate coming soon). +// (long) type (TODO doubles and other types such as wxDate coming soon). // ---------------------------------------------------------------------------- -class wxConfigBase +class WXDLLEXPORT wxConfigBase { public: + // constants + // the type of an entry + enum EntryType + { + Type_Unknown, + Type_String, + Type_Boolean, + Type_Integer, // use Read(long *) + Type_Float // use Read(double *) + }; + // static functions // sets the config object, returns the previous pointer static wxConfigBase *Set(wxConfigBase *pConfig); // get the config object, creates it on demand unless DontCreateOnDemand // was called - static wxConfigBase *Get() { if ( !ms_pConfig ) Create(); return ms_pConfig; } + static wxConfigBase *Get(bool createOnDemand = TRUE) + { if ( createOnDemand && (!ms_pConfig) ) Create(); return ms_pConfig; } // create a new config object: this function will create the "best" // implementation of wxConfig available for the current platform, see - // comments near definition wxCONFIG_WIN32_NATIVE for details. It returns + // comments near definition wxUSE_CONFIG_NATIVE for details. It returns // the created object and also sets it as ms_pConfig. static wxConfigBase *Create(); // should Get() try to create a new log object if the current one is NULL? static void DontCreateOnDemand() { ms_bAutoCreate = FALSE; } // ctor & virtual dtor - // environment variable expansion is on by default - wxConfigBase() { m_bExpandEnvVars = TRUE; m_bRecordDefaults = FALSE; } + // ctor (can be used as default ctor too) + // + // Not all args will always be used by derived classes, but including + // them all in each class ensures compatibility. If appName is empty, + // uses wxApp name + wxConfigBase(const wxString& appName = wxEmptyString, + const wxString& vendorName = wxEmptyString, + const wxString& localFilename = wxEmptyString, + const wxString& globalFilename = wxEmptyString, + long style = 0); + // empty but ensures that dtor of all derived classes is virtual virtual ~wxConfigBase() { } @@ -135,34 +145,69 @@ public: bool Exists(const wxString& strName) const { return HasGroup(strName) || HasEntry(strName); } + // get the entry type + virtual EntryType GetEntryType(const wxString& name) const + { + // by default all entries are strings + return HasEntry(name) ? Type_String : Type_Unknown; + } + // key access: returns TRUE if value was really read, FALSE if default used // (and if the key is not found the default value is returned.) // read a string from the key - virtual bool Read(wxString *pStr, const char *szKey, - const char *szDefault = NULL) const = 0; - // another version using statis buffer - it means it will be overwritten - // after each call to this function! - virtual const char *Read(const char *szKey, - const char *szDefault = NULL) const; - // the same for longs - virtual long Read(const char *szKey, long lDefault) const - { long l; Read(&l, szKey, lDefault); return l; } - // and another version: returns true if default value is returned - virtual bool Read(long *pl, const char *szKey, long lDefault = 0) const = 0; + virtual bool Read(const wxString& key, wxString *pStr) const = 0; + virtual bool Read(const wxString& key, wxString *pStr, const wxString& defVal) const; + + virtual wxString Read(const wxString& key, const wxString& defVal = wxEmptyString) const; + + virtual bool Read(const wxString& key, long *pl) const = 0; + virtual bool Read(const wxString& key, long *pl, long defVal) const; + + virtual long Read(const wxString& strKey, long defVal) const + { long l; Read(strKey, &l, defVal); return l; } + + // Convenience functions that are built on other forms + + // int + virtual bool Read(const wxString& key, int *pi) const; + virtual bool Read(const wxString& key, int *pi, int defVal) const; + + // double + virtual bool Read(const wxString& key, double* val) const; + virtual bool Read(const wxString& key, double* val, double defVal) const; + + // bool + virtual bool Read(const wxString& key, bool* val) const; + virtual bool Read(const wxString& key, bool* val, bool defVal) const; // write the value (return true on success) - virtual bool Write(const char *szKey, const char *szValue) = 0; - virtual bool Write(const char *szKey, long lValue) = 0; + virtual bool Write(const wxString& key, const wxString& value) = 0; + virtual bool Write(const wxString& key, long value) = 0; + + // Convenience functions + virtual bool Write(const wxString& key, double value); + virtual bool Write(const wxString& key, bool value); + virtual bool Write(const wxString& key, const wxChar *text ) ; + // permanently writes all changes virtual bool Flush(bool bCurrentOnly = FALSE) = 0; + // renaming, all functions return FALSE on failure (probably because the new + // name is already taken by an existing entry) + // rename an entry + virtual bool RenameEntry(const wxString& oldName, + const wxString& newName) = 0; + // rename a group + virtual bool RenameGroup(const wxString& oldName, + const wxString& newName) = 0; + // delete entries/groups // deletes the specified entry and the group it belongs to if // it was the last key in it and the second parameter is true - virtual bool DeleteEntry(const char *szKey, + virtual bool DeleteEntry(const wxString& key, bool bDeleteGroupIfEmpty = TRUE) = 0; // delete the group (with all subgroups) - virtual bool DeleteGroup(const char *szKey) = 0; + virtual bool DeleteGroup(const wxString& key) = 0; // delete the whole underlying object (disk file, registry key, ...) // primarly for use by desinstallation routine. virtual bool DeleteAll() = 0; @@ -176,30 +221,48 @@ public: void SetRecordDefaults(bool bDoIt = TRUE) { m_bRecordDefaults = bDoIt; } bool IsRecordingDefaults() const { return m_bRecordDefaults; } // does expansion only if needed - wxString ExpandEnvVars(const wxString& str) const - { - wxString tmp; // Required for BC++ - if (IsExpandingEnvVars()) - tmp = wxExpandEnvVars(str); - else - tmp = str; - return tmp; - } + wxString ExpandEnvVars(const wxString& str) const; + + // misc accessors + wxString GetAppName() const { return m_appName; } + wxString GetVendorName() const { return m_vendorName; } + + void SetStyle(long style) { m_style = style; } + long GetStyle() const { return m_style; } protected: - static bool IsImmutable(const char *szKey) - { return *szKey == wxCONFIG_IMMUTABLE_PREFIX; } + static bool IsImmutable(const wxString& key) + { return !key.IsEmpty() && key[0] == wxCONFIG_IMMUTABLE_PREFIX; } + +private: + // are we doing automatic environment variable expansion? + bool m_bExpandEnvVars; + // do we record default values? + bool m_bRecordDefaults; + + // static variables + static wxConfigBase *ms_pConfig; + static bool ms_bAutoCreate; + + // Application name and organisation name + wxString m_appName; + wxString m_vendorName; + + // Style flag + long m_style; +}; // a handy little class which changes current path to the path of given entry // and restores it in dtor: so if you declare a local variable of this type, // you work in the entry directory and the path is automatically restored // when the function returns - class PathChanger + // Taken out of wxConfig since not all compilers can cope with nested classes. + class wxConfigPathChanger { public: // ctor/dtor do path changing/restorin - PathChanger(const wxConfigBase *pContainer, const wxString& strEntry); - ~PathChanger(); + wxConfigPathChanger(const wxConfigBase *pContainer, const wxString& strEntry); + ~wxConfigPathChanger(); // get the key name const wxString& Name() const { return m_strName; } @@ -211,34 +274,43 @@ protected: bool m_bChanged; // was the path changed? }; -private: - // are we doing automatic environment variable expansion? - bool m_bExpandEnvVars; - // do we record default values? - bool m_bRecordDefaults; - - // static variables - static wxConfigBase *ms_pConfig; - static bool ms_bAutoCreate; -}; // ---------------------------------------------------------------------------- // the native wxConfigBase implementation // ---------------------------------------------------------------------------- // under Windows we prefer to use the native implementation -#if defined(__WXMSW__) && wxCONFIG_WIN32_NATIVE +#if defined(__WXMSW__) && wxUSE_CONFIG_NATIVE #ifdef __WIN32__ #define wxConfig wxRegConfig - #define classwxConfig classwxRegConfig + #define sm_classwxConfig sm_classwxRegConfig #else //WIN16 #define wxConfig wxIniConfig - #define classwxConfig classwxIniConfig + #define sm_classwxConfig sm_classwxIniConfig #endif #else // either we're under Unix or wish to use files even under Windows #define wxConfig wxFileConfig - #define classwxConfig classwxFileConfig + #define sm_classwxConfig sm_classwxFileConfig #endif -#endif // _WX_CONFIG_H_ +#endif // wxUSE_CONFIG + +// ---------------------------------------------------------------------------- +// various helper global functions (defined even if !wxUSE_CONFIG) +// ---------------------------------------------------------------------------- + +/* + Replace environment variables ($SOMETHING) with their values. The format is + $VARNAME or ${VARNAME} where VARNAME contains alphanumeric characters and + '_' only. '$' must be escaped ('\$') in order to be taken literally. + */ +extern wxString wxExpandEnvVars(const wxString &sz); + +/* + Split path into parts removing '..' in progress + */ +extern void wxSplitPath(wxArrayString& aParts, const wxChar *sz); + +#endif + // _WX_CONFIG_H_