///////////////////////////////////////////////////////////////////////////////
// Name: confbase.h
// Purpose: declaration of the base class of all config implementations
-// (see also: fileconf.h and msw/regconf.h)
-// Author: Karsten Ballüder & Vadim Zeitlin
+// (see also: fileconf.h and msw/regconf.h and iniconf.h)
+// 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 <zeitlin@dptmaths.ens-cachan.fr>
-// Licence: wxWindows license
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
-#ifndef _WX_CONFBASE_H_
-#define _WX_CONFBASE_H_
+#ifndef _WX_CONFBASE_H_
+#define _WX_CONFBASE_H_
-#ifdef __GNUG__
-#pragma interface "confbase.h"
-#endif
+#include "wx/defs.h"
+#include "wx/string.h"
+#include "wx/object.h"
+#include "wx/base64.h"
-// ----------------------------------------------------------------------------
-// compile options
-// ----------------------------------------------------------------------------
-
-// it won't compile without it anyhow
-#ifndef wxUSE_CONFIG
- #error "Please define wxUSE_CONFIG or remove config.cpp from your makefile"
-#endif // wxUSE_CONFIG
+class WXDLLIMPEXP_FWD_BASE wxArrayString;
// ----------------------------------------------------------------------------
// constants
/// 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 _T('/')
#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 _T('!')
#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
-// Style flags for constructor style parameter
-#define wxCONFIG_USE_LOCAL_FILE 1
-#define wxCONFIG_USE_GLOBAL_FILE 2
-
-// ----------------------------------------------------------------------------
-// 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);
+// 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
-/*
- 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,
+ wxCONFIG_USE_NO_ESCAPE_CHARACTERS = 8,
+ wxCONFIG_USE_SUBDIR = 16
+};
// ----------------------------------------------------------------------------
-// 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
// 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 WXDLLIMPEXP_BASE wxConfigBase : public wxObject
{
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; }
+ static void DontCreateOnDemand() { ms_bAutoCreate = false; }
// ctor & virtual dtor
- // environment variable expansion is on by default
-// wxConfigBase() { m_bExpandEnvVars = TRUE; m_bRecordDefaults = FALSE; }
-
- // ctor
-
- // 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 = "", const wxString& vendorName = "",
- const wxString& localFilename = "", const wxString& globalFilename = "",
+ // 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() { }
+ virtual ~wxConfigBase();
// path management
// set current path: if the first character is '/', it's the absolute path,
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); }
- // key access: returns TRUE if value was really read, FALSE if default used
+ // 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(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
+
+#ifdef wxHAS_CONFIG_TEMPLATE_RW
+ // read other types, for which wxFromString is defined
+ template <typename T>
+ bool Read(const wxString& key, T* value) const
+ {
+ wxString s;
+ if ( !Read(key, &s) )
+ return false;
+ return wxFromString(s, value);
+ }
+
+ template <typename T>
+ 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)); }
+#if wxUSE_WCHAR_T
+ wxString Read(const wxString& key, const wchar_t* defVal) const
+ { return Read(key, wxString(defVal)); }
+#endif
+
+ 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; }
- virtual wxString Read(const wxString& key, const wxString& defVal = "") const;
+ template <typename T>
+ T ReadObject(const wxString& key, T const& defVal) const
+ { T t; (void)Read(key, &t, defVal); return t; }
- virtual bool Read(const wxString& key, long *pl) const = 0;
- virtual bool Read(const wxString& key, long *pl, long defVal) const;
+ // for compatibility with wx 2.8
+ long Read(const wxString& key, long defVal) const
+ { return ReadLong(key, defVal); }
- 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
- // double
- virtual bool Read(const wxString& key, double* val) const;
- virtual bool Read(const wxString& key, double* val, double defVal) const;
+ // write the value (return true on success)
+ bool Write(const wxString& key, const wxString& value)
+ { return DoWriteString(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, long 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, double value)
+ { return DoWriteDouble(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, bool value)
+ { return DoWriteBool(key, value); }
- // permanently writes all changes
- virtual bool Flush(bool bCurrentOnly = FALSE) = 0;
+#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
+
+
+ // 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 Write(const wxString& key, unsigned char value)
+ { return DoWriteLong(key, value); }
+
+ bool Write(const wxString& key, short value)
+ { return DoWriteLong(key, value); }
+
+ bool Write(const wxString& key, unsigned short value)
+ { return DoWriteLong(key, value); }
+
+ bool Write(const wxString& key, unsigned int value)
+ { return DoWriteLong(key, value); }
+
+ 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 <typename T>
+ 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,
+ 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 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
- {
- wxString tmp; // Required for BC++
- if (IsExpandingEnvVars())
- tmp = wxExpandEnvVars(str);
- else
- tmp = str;
- return tmp;
- }
+ wxString ExpandEnvVars(const wxString& str) const;
// misc accessors
- inline wxString GetAppName() const { return m_appName; }
- inline wxString GetVendorName() const { return m_vendorName; }
+ wxString GetAppName() const { return m_appName; }
+ wxString GetVendorName() const { return m_vendorName; }
- inline void SetAppName(const wxString& appName) { m_appName = appName; }
- inline void SetVendorName(const wxString& vendorName) { m_vendorName = vendorName; }
+ // Used wxIniConfig to set members in constructor
+ void SetAppName(const wxString& appName) { m_appName = appName; }
+ void SetVendorName(const wxString& vendorName) { m_vendorName = vendorName; }
- inline void SetStyle(long style) { m_style = style; }
- inline long GetStyle() const { return m_style; }
+ void SetStyle(long style) { m_style = style; }
+ long GetStyle() const { return m_style; }
protected:
static bool IsImmutable(const wxString& key)
- { return key[0] == wxCONFIG_IMMUTABLE_PREFIX; }
+ { 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;
// do we record default values?
bool m_bRecordDefaults;
-
+
// static variables
static wxConfigBase *ms_pConfig;
static bool ms_bAutoCreate;
// 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?
+
+ wxDECLARE_NO_COPY_CLASS(wxConfigPathChanger);
+};
+#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.
+*/
+
+WXDLLIMPEXP_BASE wxString wxExpandEnvVars(const wxString &sz);
+
+/*
+ Split path into parts removing '..' in progress
+ */
+WXDLLIMPEXP_BASE void wxSplitPath(wxArrayString& aParts, const wxString& path);
-#endif // _WX_CONFIG_H_
+#endif // _WX_CONFBASE_H_
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