X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d427503c3696486ef84cd0e5081884ccd8d6b434..7bd30a12ade503fd135c686ecc98a6f6d5fecbeb:/include/wx/confbase.h diff --git a/include/wx/confbase.h b/include/wx/confbase.h index c4cfa87538..481723857e 100644 --- a/include/wx/confbase.h +++ b/include/wx/confbase.h @@ -1,28 +1,25 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: confbase.h +// Name: wx/confbase.h // Purpose: declaration of the base class of all config implementations // (see also: fileconf.h and msw/regconf.h and iniconf.h) -// Author: Karsten Ballüder & Vadim Zeitlin +// Author: Karsten Ballueder & Vadim Zeitlin // Modified by: // Created: 07.04.98 (adapted from appconf.h) // RCS-ID: $Id$ -// Copyright: (c) 1997 Karsten Ballüder Ballueder@usa.net +// Copyright: (c) 1997 Karsten Ballueder 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 @@ -30,26 +27,36 @@ /// 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) #ifndef wxCONFIG_PATH_SEPARATOR - #define wxCONFIG_PATH_SEPARATOR '/' + #define wxCONFIG_PATH_SEPARATOR wxT('/') #endif /// introduces immutable entries // (i.e. the ones which can't be changed from the local config file) #ifndef wxCONFIG_IMMUTABLE_PREFIX - #define wxCONFIG_IMMUTABLE_PREFIX '!' + #define wxCONFIG_IMMUTABLE_PREFIX wxT('!') #endif -/// should we use registry instead of configuration files under Win32? +#if wxUSE_CONFIG + +/// 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 +// false) or wxRegConfig (if it's true and we're under Win32)) +#ifndef wxUSE_CONFIG_NATIVE + #define wxUSE_CONFIG_NATIVE 1 +#endif + +// not all compilers can deal with template Read/Write() methods, define this +// symbol if the template functions are available +#if (!defined(__VISUALC__) || __VISUALC__ > 1200) && \ + !defined( __VMS ) && \ + !(defined(__HP_aCC) && defined(__hppa)) && \ + !defined (__DMC__) + #define wxHAS_CONFIG_TEMPLATE_RW #endif // Style flags for constructor style parameter @@ -57,7 +64,9 @@ 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 +80,8 @@ 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 @@ -90,14 +100,15 @@ public: 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; } + static void DontCreateOnDemand() { ms_bAutoCreate = false; } // ctor & virtual dtor // ctor (can be used as default ctor too) @@ -112,7 +123,7 @@ public: long style = 0); // empty but ensures that dtor of all derived classes is virtual - virtual ~wxConfigBase() { } + virtual ~wxConfigBase(); // path management // set current path: if the first character is '/', it's the absolute path, @@ -132,15 +143,15 @@ 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); } @@ -151,46 +162,162 @@ 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 float + bool Read(const wxString& key, float* val) const; + bool Read(const wxString& key, float* val, float 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 + +#ifdef wxHAS_CONFIG_TEMPLATE_RW + // 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); + } + + 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 // wxHAS_CONFIG_TEMPLATE_RW + + // convenience functions returning directly the value + 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)); } + wxString Read(const wxString& key, const wchar_t* defVal) const + { return Read(key, wxString(defVal)); } + + long ReadLong(const wxString& key, long defVal) const + { long l; (void)Read(key, &l, defVal); return l; } + + double ReadDouble(const wxString& key, double defVal) const + { double d; (void)Read(key, &d, defVal); return d; } + + bool ReadBool(const wxString& key, bool defVal) const + { bool b; (void)Read(key, &b, defVal); return b; } + + template + T ReadObject(const wxString& key, T const& defVal) const + { T t; (void)Read(key, &t, defVal); return t; } + + // for compatibility with wx 2.8 + long Read(const wxString& key, long defVal) const + { return ReadLong(key, defVal); } + + + // 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); } - virtual wxString Read(const wxString& key, const wxString& defVal = wxEmptyString) const; + bool Write(const wxString& key, double value) + { return DoWriteDouble(key, value); } - virtual bool Read(const wxString& key, long *pl) const = 0; - virtual bool Read(const wxString& key, long *pl, long defVal) const; + bool Write(const wxString& key, bool value) + { return DoWriteBool(key, value); } - virtual long Read(const wxString& strKey, long defVal) const - { long l; Read(strKey, &l, defVal); return l; } +#if wxUSE_BASE64 + bool Write(const wxString& key, const wxMemoryBuffer& buf) + { return DoWriteBinary(key, buf); } +#endif // wxUSE_BASE64 - // Convenience functions that are built on other forms + // 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)); } + bool Write(const wxString& key, const wchar_t *value) + { return Write(key, wxString(value)); } - // 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, char 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 char 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, short 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 short value) + { return DoWriteLong(key, value); } - // permanently writes all changes - virtual bool Flush(bool bCurrentOnly = FALSE) = 0; + bool Write(const wxString& key, unsigned int value) + { return DoWriteLong(key, value); } - // renaming, all functions return FALSE on failure (probably because the new + bool Write(const wxString& key, int value) + { return DoWriteLong(key, value); } + + bool Write(const wxString& key, unsigned long value) + { return DoWriteLong(key, value); } + + bool Write(const wxString& key, float value) + { return DoWriteDouble(key, value); } + + // Causes ambiguities in VC++ 6 and OpenVMS (at least) +#if ( (!defined(__VISUALC__) || __VISUALC__ > 1200) && !defined( __VMS ) && !defined (__DMC__)) + // 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, @@ -203,20 +330,20 @@ 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; @@ -225,16 +352,40 @@ public: wxString GetAppName() const { return m_appName; } wxString GetVendorName() const { return m_vendorName; } + // Used wxIniConfig to set members in constructor + void SetAppName(const wxString& appName) { m_appName = appName; } + void SetVendorName(const wxString& vendorName) { m_vendorName = vendorName; } + void SetStyle(long style) { m_style = style; } long GetStyle() const { return m_style; } protected: static bool IsImmutable(const wxString& key) -#if !defined(__WXMAC__) && !defined(__EMX__) - { return !key.IsEmpty() && key[0u] == wxCONFIG_IMMUTABLE_PREFIX; } -#else - { return !key.IsEmpty() && key[0ul] == wxCONFIG_IMMUTABLE_PREFIX; } -#endif + { 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? @@ -252,67 +403,57 @@ 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; } -// ---------------------------------------------------------------------------- -// the native wxConfigBase implementation -// ---------------------------------------------------------------------------- + // 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(); -// under Windows we prefer to use the native implementation -#if defined(__WXMSW__) && wxCONFIG_WIN32_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 +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? -#endif // wxUSE_CONFIG + wxDECLARE_NO_COPY_CLASS(wxConfigPathChanger); +}; -// ---------------------------------------------------------------------------- -// various helper global functions (defined even if !wxUSE_CONFIG) -// ---------------------------------------------------------------------------- + +#endif // 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); +*/ + +WXDLLIMPEXP_BASE wxString wxExpandEnvVars(const wxString &sz); /* Split path into parts removing '..' in progress */ -extern void wxSplitPath(wxArrayString& aParts, const wxChar *sz); +WXDLLIMPEXP_BASE void wxSplitPath(wxArrayString& aParts, const wxString& path); -#endif - // _WX_CONFIG_H_ +#endif // _WX_CONFBASE_H_