X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e1b8d4d841979b9fed749e1f8a18abc58975a4d9..de34bb081b6ce19bd4b1216d26a79b817a631bbd:/include/wx/confbase.h diff --git a/include/wx/confbase.h b/include/wx/confbase.h index 584d4de71c..9d97e49680 100644 --- a/include/wx/confbase.h +++ b/include/wx/confbase.h @@ -8,21 +8,18 @@ // RCS-ID: $Id$ // Copyright: (c) 1997 Karsten Ballüder Ballueder@usa.net // Vadim Zeitlin -// Licence: wxWindows license +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// -#ifndef _WX_CONFBASE_H_ -#define _WX_CONFBASE_H_ - -#ifdef __GNUG__ -#pragma interface "confbase.h" -#endif +#ifndef _WX_CONFBASE_H_ +#define _WX_CONFBASE_H_ #include "wx/defs.h" - -#if wxUSE_CONFIG - #include "wx/string.h" +#include "wx/object.h" +#include "wx/base64.h" + +class WXDLLIMPEXP_FWD_BASE wxArrayString; // ---------------------------------------------------------------------------- // constants @@ -30,7 +27,7 @@ /// shall we be case sensitive in parsing variable names? #ifndef wxCONFIG_CASE_SENSITIVE - #define wxCONFIG_CASE_SENSITIVE FALSE + #define wxCONFIG_CASE_SENSITIVE 0 #endif /// separates group and entry names (probably shouldn't be changed) @@ -44,10 +41,13 @@ #define wxCONFIG_IMMUTABLE_PREFIX _T('!') #endif +#if wxUSE_CONFIG + +#include "wx/string.h" + /// 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)) +// false) or wxRegConfig (if it's true and we're under Win32)) #ifndef wxUSE_CONFIG_NATIVE #define wxUSE_CONFIG_NATIVE 1 #endif @@ -57,7 +57,9 @@ enum { wxCONFIG_USE_LOCAL_FILE = 1, wxCONFIG_USE_GLOBAL_FILE = 2, - wxCONFIG_USE_RELATIVE_PATH = 4 + wxCONFIG_USE_RELATIVE_PATH = 4, + wxCONFIG_USE_NO_ESCAPE_CHARACTERS = 8, + wxCONFIG_USE_SUBDIR = 16 }; // ---------------------------------------------------------------------------- @@ -71,7 +73,8 @@ enum // Keys are pairs "key_name = value" where value may be of string or integer // (long) type (TODO doubles and other types such as wxDate coming soon). // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxConfigBase + +class WXDLLIMPEXP_BASE wxConfigBase : public wxObject { public: // constants @@ -90,7 +93,7 @@ public: static wxConfigBase *Set(wxConfigBase *pConfig); // get the config object, creates it on demand unless DontCreateOnDemand // was called - static wxConfigBase *Get(bool createOnDemand = TRUE) + 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 @@ -98,7 +101,7 @@ public: // 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; } + static void DontCreateOnDemand() { ms_bAutoCreate = false; } // ctor & virtual dtor // ctor (can be used as default ctor too) @@ -133,15 +136,15 @@ public: virtual bool GetNextEntry (wxString& str, long& lIndex) const = 0; // get number of entries/subgroups in the current group, with or without // it's subgroups - virtual size_t GetNumberOfEntries(bool bRecursive = FALSE) const = 0; - virtual size_t GetNumberOfGroups(bool bRecursive = FALSE) const = 0; + virtual size_t GetNumberOfEntries(bool bRecursive = false) const = 0; + virtual size_t GetNumberOfGroups(bool bRecursive = false) const = 0; // tests of existence - // returns TRUE if the group by this name exists + // returns true if the group by this name exists virtual bool HasGroup(const wxString& strName) const = 0; // same as above, but for an entry virtual bool HasEntry(const wxString& strName) const = 0; - // returns TRUE if either a group or an entry with a given name exist + // returns true if either a group or an entry with a given name exist bool Exists(const wxString& strName) const { return HasGroup(strName) || HasEntry(strName); } @@ -152,46 +155,143 @@ public: return HasEntry(name) ? Type_String : Type_Unknown; } - // key access: returns TRUE if value was really read, FALSE if default used + // 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(const wxString& key, wxString *pStr) const = 0; - virtual bool Read(const wxString& key, wxString *pStr, const wxString& defVal) const; + bool Read(const wxString& key, wxString *pStr) const; + bool Read(const wxString& key, wxString *pStr, const wxString& defVal) const; + + // read a number (long) + bool Read(const wxString& key, long *pl) const; + bool Read(const wxString& key, long *pl, long defVal) const; + + // read an int (wrapper around `long' version) + bool Read(const wxString& key, int *pi) const; + bool Read(const wxString& key, int *pi, int defVal) const; + + // read a double + bool Read(const wxString& key, double* val) const; + bool Read(const wxString& key, double* val, double defVal) const; + + // read a bool + bool Read(const wxString& key, bool* val) const; + bool Read(const wxString& key, bool* val, bool defVal) const; + +#if wxUSE_BASE64 + // read a binary data block + bool Read(const wxString& key, wxMemoryBuffer* data) const + { return DoReadBinary(key, data); } + // no default version since it does not make sense for binary data +#endif // wxUSE_BASE64 + + // Causes ambiguities in VC++ 6 (at least) +#if (!defined(__VISUALC__) || __VISUALC__ > 1200) + // read other types, for which wxFromString is defined + template + bool Read(const wxString& key, T* value) const + { + wxString s; + if ( !Read(key, &s) ) + return false; + return wxFromString(s, value); + } - virtual wxString Read(const wxString& key, const wxString& defVal = wxEmptyString) const; + template + bool Read(const wxString& key, T* value, const T& defVal) const + { + const bool found = Read(key, value); + if ( !found ) + { + if (IsRecordingDefaults()) + ((wxConfigBase *)this)->Write(key, defVal); + *value = defVal; + } + return found; + } +#endif - virtual bool Read(const wxString& key, long *pl) const = 0; - virtual bool Read(const wxString& key, long *pl, long defVal) const; + // convenience functions returning directly the value (we don't have them for + // int/double/bool as there would be ambiguities with the long one then) + wxString Read(const wxString& key, + const wxString& defVal = wxEmptyString) const + { wxString s; (void)Read(key, &s, defVal); return s; } + + // we have to provide a separate version for C strings as otherwise the + // template Read() would be used + wxString Read(const wxString& key, const char* defVal) const + { return Read(key, wxString(defVal)); } +#if wxUSE_WCHAR_T + wxString Read(const wxString& key, const wchar_t* defVal) const + { return Read(key, wxString(defVal)); } +#endif - virtual long Read(const wxString& strKey, long defVal) const - { long l; Read(strKey, &l, defVal); return l; } + long Read(const wxString& key, long defVal) const + { long l; (void)Read(key, &l, defVal); return l; } - // Convenience functions that are built on other forms + // write the value (return true on success) + bool Write(const wxString& key, const wxString& value) + { return DoWriteString(key, value); } + + bool Write(const wxString& key, long value) + { return DoWriteLong(key, value); } + + bool Write(const wxString& key, double value) + { return DoWriteDouble(key, value); } + + bool Write(const wxString& key, bool value) + { return DoWriteBool(key, value); } + +#if wxUSE_BASE64 + bool Write(const wxString& key, const wxMemoryBuffer& buf) + { return DoWriteBinary(key, buf); } +#endif // wxUSE_BASE64 + + // we have to provide a separate version for C strings as otherwise they + // would be converted to bool and not to wxString as expected! + bool Write(const wxString& key, const char *value) + { return Write(key, wxString(value)); } + bool Write(const wxString& key, const unsigned char *value) + { return Write(key, wxString(value)); } +#if wxUSE_WCHAR_T + bool Write(const wxString& key, const wchar_t *value) + { return Write(key, wxString(value)); } +#endif - // 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; + // we also have to provide specializations for other types which we want to + // handle using the specialized DoWriteXXX() instead of the generic template + // version below + bool Write(const wxString& key, short value) + { return DoWriteLong(key, value); } - // bool - virtual bool Read(const wxString& key, bool* val) const; - virtual bool Read(const wxString& key, bool* val, bool defVal) const; + bool Write(const wxString& key, unsigned short value) + { return DoWriteLong(key, value); } - // write the value (return true on success) - virtual bool Write(const wxString& key, const wxString& value) = 0; - virtual bool Write(const wxString& key, long value) = 0; + bool Write(const wxString& key, unsigned int value) + { return DoWriteLong(key, value); } + + bool Write(const wxString& key, int value) + { return DoWriteLong(key, value); } - // convenience functions - virtual bool Write(const wxString& key, double value); - virtual bool Write(const wxString& key, bool value); + bool Write(const wxString& key, unsigned long value) + { return DoWriteLong(key, value); } - // permanently writes all changes - virtual bool Flush(bool bCurrentOnly = FALSE) = 0; + bool Write(const wxString& key, float value) + { return DoWriteDouble(key, value); } - // renaming, all functions return FALSE on failure (probably because the new + // Causes ambiguities in VC++ 6 (at least) +#if (!defined(__VISUALC__) || __VISUALC__ > 1200) + // for other types, use wxToString() + template + bool Write(const wxString& key, T const& value) + { return Write(key, wxToString(value)); } +#endif + + // 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, @@ -204,20 +304,20 @@ public: // 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 wxString& key, - bool bDeleteGroupIfEmpty = TRUE) = 0; + bool bDeleteGroupIfEmpty = true) = 0; // delete the group (with all subgroups) virtual bool DeleteGroup(const wxString& key) = 0; // delete the whole underlying object (disk file, registry key, ...) - // primarly for use by desinstallation routine. + // primarily for use by uninstallation routine. virtual bool DeleteAll() = 0; // options // we can automatically expand environment variables in the config entries // (this option is on by default, you can turn it on/off at any time) bool IsExpandingEnvVars() const { return m_bExpandEnvVars; } - void SetExpandEnvVars(bool bDoIt = TRUE) { m_bExpandEnvVars = bDoIt; } + void SetExpandEnvVars(bool bDoIt = true) { m_bExpandEnvVars = bDoIt; } // recording of default values - void SetRecordDefaults(bool bDoIt = TRUE) { m_bRecordDefaults = bDoIt; } + 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; @@ -237,6 +337,30 @@ protected: static bool IsImmutable(const wxString& key) { return !key.IsEmpty() && key[0] == wxCONFIG_IMMUTABLE_PREFIX; } + // return the path without trailing separator, if any: this should be called + // to sanitize paths referring to the group names before passing them to + // wxConfigPathChanger as "/foo/bar/" should be the same as "/foo/bar" and it + // isn't interpreted in the same way by it (and this can't be changed there + // as it's not the same for the entries names) + static wxString RemoveTrailingSeparator(const wxString& key); + + // do read/write the values of different types + virtual bool DoReadString(const wxString& key, wxString *pStr) const = 0; + virtual bool DoReadLong(const wxString& key, long *pl) const = 0; + virtual bool DoReadDouble(const wxString& key, double* val) const; + virtual bool DoReadBool(const wxString& key, bool* val) const; +#if wxUSE_BASE64 + virtual bool DoReadBinary(const wxString& key, wxMemoryBuffer* buf) const = 0; +#endif // wxUSE_BASE64 + + virtual bool DoWriteString(const wxString& key, const wxString& value) = 0; + virtual bool DoWriteLong(const wxString& key, long value) = 0; + virtual bool DoWriteDouble(const wxString& key, double value); + virtual bool DoWriteBool(const wxString& key, bool value); +#if wxUSE_BASE64 + virtual bool DoWriteBinary(const wxString& key, const wxMemoryBuffer& buf) = 0; +#endif // wxUSE_BASE64 + private: // are we doing automatic environment variable expansion? bool m_bExpandEnvVars; @@ -253,29 +377,41 @@ private: // Style flag long m_style; + + DECLARE_ABSTRACT_CLASS(wxConfigBase) }; - // 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 - // Taken out of wxConfig since not all compilers can cope with nested classes. - class wxConfigPathChanger - { - public: - // ctor/dtor do path changing/restorin - wxConfigPathChanger(const wxConfigBase *pContainer, const wxString& strEntry); - ~wxConfigPathChanger(); - - // get the key name - const wxString& Name() const { return m_strName; } - - private: - wxConfigBase *m_pContainer; // object we live in - wxString m_strName, // name of entry (i.e. name only) - m_strOldPath; // saved path - bool m_bChanged; // was the path changed? - }; +// 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 +// Taken out of wxConfig since not all compilers can cope with nested classes. +class WXDLLIMPEXP_BASE wxConfigPathChanger +{ +public: + // ctor/dtor do path changing/restoring of the path + wxConfigPathChanger(const wxConfigBase *pContainer, const wxString& strEntry); + ~wxConfigPathChanger(); + + // get the key name + const wxString& Name() const { return m_strName; } + + // this method must be called if the original path (i.e. the current path at + // the moment of creation of this object) could have been deleted to prevent + // us from restoring the not existing (any more) path + // + // if the original path doesn't exist any more, the path will be restored to + // the deepest still existing component of the old path + void UpdateIfDeleted(); + +private: + wxConfigBase *m_pContainer; // object we live in + wxString m_strName, // name of entry (i.e. name only) + m_strOldPath; // saved path + bool m_bChanged; // was the path changed? + + DECLARE_NO_COPY_CLASS(wxConfigPathChanger) +}; // ---------------------------------------------------------------------------- @@ -283,37 +419,27 @@ private: // ---------------------------------------------------------------------------- // under Windows we prefer to use the native implementation +// wxIniConfig isn't native anywhere after droping win16 in wxWidgets 2.6 #if defined(__WXMSW__) && wxUSE_CONFIG_NATIVE - #ifdef __WIN32__ #define wxConfig wxRegConfig - #define sm_classwxConfig sm_classwxRegConfig - #else //WIN16 - #define wxConfig wxIniConfig - #define sm_classwxConfig sm_classwxIniConfig - #endif #else // either we're under Unix or wish to use files even under Windows #define wxConfig wxFileConfig - #define sm_classwxConfig sm_classwxFileConfig #endif #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 WXDLLEXPORT wxString wxExpandEnvVars(const wxString &sz); +*/ + +WXDLLIMPEXP_BASE wxString wxExpandEnvVars(const wxString &sz); /* Split path into parts removing '..' in progress */ -extern WXDLLEXPORT void wxSplitPath(wxArrayString& aParts, const wxChar *sz); +WXDLLIMPEXP_BASE void wxSplitPath(wxArrayString& aParts, const wxString& path); -#endif - // _WX_CONFIG_H_ +#endif // _WX_CONFBASE_H_