mirror of https://github.com/PCSX2/pcsx2.git
459 lines
17 KiB
C++
459 lines
17 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
// 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 Ballueder & Vadim Zeitlin
|
|
// Modified by:
|
|
// Created: 07.04.98 (adapted from appconf.h)
|
|
// Copyright: (c) 1997 Karsten Ballueder Ballueder@usa.net
|
|
// Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
|
|
// Licence: wxWindows licence
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_CONFBASE_H_
|
|
#define _WX_CONFBASE_H_
|
|
|
|
#include "wx/defs.h"
|
|
#include "wx/string.h"
|
|
#include "wx/object.h"
|
|
#include "wx/base64.h"
|
|
|
|
class WXDLLIMPEXP_FWD_BASE wxArrayString;
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// constants
|
|
// ----------------------------------------------------------------------------
|
|
|
|
/// shall we be case sensitive in parsing variable names?
|
|
#ifndef wxCONFIG_CASE_SENSITIVE
|
|
#define wxCONFIG_CASE_SENSITIVE 0
|
|
#endif
|
|
|
|
/// separates group and entry names (probably shouldn't be changed)
|
|
#ifndef 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 wxT('!')
|
|
#endif
|
|
|
|
#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))
|
|
#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
|
|
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
|
|
// classes
|
|
//
|
|
// wxConfig organizes the items in a tree-like structure (modelled after the
|
|
// Unix/Dos filesystem). There are groups (directories) and keys (files).
|
|
// 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 (TODO doubles and other types such as wxDate coming soon).
|
|
// ----------------------------------------------------------------------------
|
|
|
|
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(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 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
|
|
// 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();
|
|
|
|
// path management
|
|
// set current path: if the first character is '/', it's the absolute path,
|
|
// otherwise it's a relative path. '..' is supported. If the strPath
|
|
// doesn't exist it is created.
|
|
virtual void SetPath(const wxString& strPath) = 0;
|
|
// retrieve the current path (always as absolute path)
|
|
virtual const wxString& GetPath() const = 0;
|
|
|
|
// enumeration: all functions here return false when there are no more items.
|
|
// you must pass the same lIndex to GetNext and GetFirst (don't modify it)
|
|
// enumerate subgroups
|
|
virtual bool GetFirstGroup(wxString& str, long& lIndex) const = 0;
|
|
virtual bool GetNextGroup (wxString& str, long& lIndex) const = 0;
|
|
// enumerate entries
|
|
virtual bool GetFirstEntry(wxString& str, long& lIndex) const = 0;
|
|
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;
|
|
|
|
// tests of existence
|
|
// 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
|
|
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
|
|
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 <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)); }
|
|
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 <typename T>
|
|
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); }
|
|
|
|
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)); }
|
|
bool Write(const wxString& key, const wchar_t *value)
|
|
{ return Write(key, wxString(value)); }
|
|
|
|
|
|
// 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;
|
|
// delete the group (with all subgroups)
|
|
virtual bool DeleteGroup(const wxString& key) = 0;
|
|
// delete the whole underlying object (disk file, registry key, ...)
|
|
// 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; }
|
|
// recording of default values
|
|
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;
|
|
|
|
// misc accessors
|
|
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)
|
|
{ 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;
|
|
|
|
// Application name and organisation name
|
|
wxString m_appName;
|
|
wxString m_vendorName;
|
|
|
|
// 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 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?
|
|
|
|
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_CONFBASE_H_
|
|
|