wxConfigBase class defines the basic interface of all config classes. It can
not be used by itself (it's an abstract base class) and you'll always use one
-of its derivations: wxIniConfig, wxFileConfig, wxRegConfig or
-any other.
+of its derivations: wxIniConfig, wxFileConfig, wxRegConfig or any other.
However, usually you don't even need to know the precise nature of the class
you're working with but you would just use the wxConfigBase methods. This
platform: i.e. wxRegConfig under Win32, wxIniConfig under Win16 and
wxFileConfig otherwise.
-%See \helpref{config overview}{configoverview} for the descriptions of all
-%features of this class.
+See \helpref{config overview}{wxconfigoverview} for the descriptions of all
+features of this class.
\wxheading{Derived from}
No base class
+\wxheading{Include files}
+
+<wx/config.h> (to let wxWindows choose a wxConfig class for your platform)\\
+<wx/confbase.h> (base config class)\\
+<wx/fileconf.h> (wxFileconfig class)\\
+<wx/msw/regconf.h> (wxRegConfig class)\\
+<wx/msw/iniconf.h> (wxIniConfig class)
+
\wxheading{Example}
Here is how you would typically use this class:
\membersection{Path management}
-%As explained in \helpref{config overview}{configoverview},
-The config classes support a file system-like hierarchy of keys (files) and groups (directories).
+As explained in \helpref{config overview}{wxconfigoverview}, the config classes
+support a file system-like hierarchy of keys (files) and groups (directories).
As in the file system case, to specify a key in the config class you must use
a path to it. Config classes also support the notion of the current group,
which makes it possible to use the relative paths. To clarify all this, here
// create an entry in subgroup
conf->Write("SubgroupEntry", 3);
-
+
// '..' is understood
conf->Write("../GroupEntry", 2);
conf->SetPath("..");
void bar(wxConfigBase *config)
{
config->Write("Test", 17);
-
+
foo(config);
// we're reading "/Foo/Data/Test" here! -1 will probably be returned...
\helpref{HasGroup}{wxconfigbasehasgroup}\\
\helpref{HasEntry}{wxconfigbasehasentry}\\
-\helpref{Exists}{wxconfigbaseexists}
+\helpref{Exists}{wxconfigbaseexists}\\
+\helpref{GetEntryType}{wxconfigbasegetentrytype}
\membersection{Miscellaneous accessors}
-\helpref{SetAppName}{wxconfigbasesetappname}\\
\helpref{GetAppName}{wxconfigbasegetappname}\\
-\helpref{SetVendorName}{wxconfigbasesetvendorname}\\
\helpref{GetVendorName}{wxconfigbasegetvendorname}
\membersection{Key access}
\helpref{Write}{wxconfigbasewrite}\\
\helpref{Flush}{wxconfigbaseflush}
+\membersection{Rename entries/groups}
+
+The functions in this section allow to rename entries or subgroups of the
+current group. They will return FALSE on error. typically because either the
+entry/group with the original name doesn't exist, because the entry/group with
+the new name already exists or because the function is not supported in this
+wxConfig implementation.
+
+\helpref{RenameEntry}{wxconfigbaserenameentry}\\
+\helpref{RenameGroup}{wxconfigbaserenamegroup}
+
\membersection{Delete entries/groups}
The functions in this section delete entries and/or groups of entries from the
\param{const wxString\& }{globalFilename = wxEmptyString},
\param{long}{ style = 0}}
-This is the default and only constructor of the wxConfigBase class, and derived classes.
+This is the default and only constructor of the wxConfigBase class, and
+derived classes.
\wxheading{Parameters}
-\docparam{appName}{The application name. If this is empty, the class will normally
-use \helpref{wxApp::GetAppName}{wxappgetappname} to set it. The application name
-is used in the registry key on Windows, and can be used to deduce the local filename
-parameter if that is missing.}
+\docparam{appName}{The application name. If this is empty, the class will
+normally use \helpref{wxApp::GetAppName}{wxappgetappname} to set it. The
+application name is used in the registry key on Windows, and can be used to
+deduce the local filename parameter if that is missing.}
\docparam{vendorName}{The vendor name. If this is empty, it is assumed that
no vendor name is wanted, if this is optional for the current config class.
The vendor name is appended to the application name for wxRegConfig.}
-\docparam{localFilename}{Some config classes require a local filename. If this is not
-present, but required, the application name will be used instead.}
+\docparam{localFilename}{Some config classes require a local filename. If this
+is not present, but required, the application name will be used instead.}
-\docparam{globalFilename}{Some config classes require a global filename. If this is not
-present, but required, the application name will be used instead.}
+\docparam{globalFilename}{Some config classes require a global filename. If
+this is not present, but required, the application name will be used instead.}
-\docparam{style}{Can be one of wxCONFIG\_USE\_LOCAL\_FILE and wxCONFIG\_USE\_GLOBAL\_FILE.
-The style interpretation depends on the config class and is ignored by some.
-For wxFileConfig, these styles determine whether a local or global config file is created or used.
-If the flag is present but the parameter is empty, the parameter will be set to a default.
-If the parameter is present but the style flag not, the relevant flag will be added to the style.}
+\docparam{style}{Can be one of wxCONFIG\_USE\_LOCAL\_FILE and
+wxCONFIG\_USE\_GLOBAL\_FILE. The style interpretation depends on the config
+class and is ignored by some. For wxFileConfig, these styles determine whether
+a local or global config file is created or used. If the flag is present but
+the parameter is empty, the parameter will be set to a default. If the
+parameter is present but the style flag not, the relevant flag will be added
+to the style.}
\wxheading{Remarks}
-By default, environment variable expansion is on and recording
-defaults is off.
+By default, environment variable expansion is on and recording defaults is
+off.
\membersection{wxConfigBase::\destruct{wxConfigBase}}\label{wxconfigbasedtor}
\func{static wxConfigBase *}{Create}{\void}
Create a new config object: this function will create the "best"
-implementation of wxConfig available for the current platform, see
-comments near the definition of wxCONFIG\_WIN32\_NATIVE for details. It returns
-the created object and also sets it as the current one.
+implementation of wxConfig available for the current platform, see comments
+near the definition of wxCONFIG\_WIN32\_NATIVE for details. It returns the
+created object and also sets it as the current one.
\membersection{wxConfigBase::DontCreateOnDemand}\label{wxconfigbasedontcreateondemand}
\membersection{wxConfigBase::DeleteEntry}\label{wxconfigbasedeleteentry}
-\func{bool}{DeleteEntry}{\param{const wxString\& }{ key}, \param{bool}{ bDeleteGroupIfEmpty = TRUE}}
+\func{bool}{DeleteEntry}{\param{const wxString\& }{ key}, \param{bool}{
+bDeleteGroupIfEmpty = TRUE}}
-Deletes the specified entry and the group it belongs to if
-it was the last key in it and the second parameter is true.
+Deletes the specified entry and the group it belongs to if it was the last key
+in it and the second parameter is true.
\membersection{wxConfigBase::DeleteGroup}\label{wxconfigbasedeletegroup}
Returns the application name.
+\membersection{wxConfigBase::GetEntryType}\label{wxconfigbasegetentrytype}
+
+\constfunc{enum wxConfigBase::EntryType}{GetEntryType}{\param{const wxString\& }{name}}
+
+Returns the type of the given entry or {\it Unknown} if the entry doesn't
+exist. This function should be used to decide which version of Read() should
+be used because some of wxConfig implementations will complain about type
+mismatch otherwise: e.g., an attempt to read a string value from an integer
+key with wxRegConfig will fail.
+
+The result is an element of enum EntryType:
+
+\begin{verbatim}
+ enum EntryType
+ {
+ Unknown,
+ String,
+ Boolean,
+ Integer,
+ Float
+ };
+\end{verbatim}
+
\membersection{wxConfigBase::GetFirstGroup}\label{wxconfigbasegetfirstgroup}
-\constfunc{bool}{GetFirstGroup}{\param{wxString\& }{str}, \param{long\&}{ index}}
+\constfunc{bool}{GetFirstGroup}{\param{wxString\& }{str}, \param{long\&}{
+index}}
Gets the first group.
+\pythonnote{The wxPython version of this method returns a 3-tuple
+consisting of the continue flag, the value string, and the index for
+the next call.}
+
\membersection{wxConfigBase::GetFirstEntry}\label{wxconfigbasegetfirstentry}
-\constfunc{bool}{GetFirstEntry}{\param{wxString\& }{str}, \param{long\&}{ index}}
+\constfunc{bool}{GetFirstEntry}{\param{wxString\& }{str}, \param{long\&}{
+index}}
Gets the first entry.
+\pythonnote{The wxPython version of this method returns a 3-tuple
+consisting of the continue flag, the value string, and the index for
+the next call.}
+
\membersection{wxConfigBase::GetNextGroup}\label{wxconfigbasegetnextgroup}
-\constfunc{bool}{GetNextGroup}{\param{wxString\& }{str}, \param{long\&}{ index}}
+\constfunc{bool}{GetNextGroup}{\param{wxString\& }{str}, \param{long\&}{
+index}}
Gets the next group.
+\pythonnote{The wxPython version of this method returns a 3-tuple
+consisting of the continue flag, the value string, and the index for
+the next call.}
+
\membersection{wxConfigBase::GetNextEntry}\label{wxconfigbasegetnextentry}
-\constfunc{bool}{GetNextEntry}{\param{wxString\& }{str}, \param{long\&}{ index}}
+\constfunc{bool}{GetNextEntry}{\param{wxString\& }{str}, \param{long\&}{
+index}}
Gets the next entry.
+\pythonnote{The wxPython version of this method returns a 3-tuple
+consisting of the continue flag, the value string, and the index for
+the next call.}
+
\membersection{wxConfigBase::GetNumberOfEntries}\label{wxconfigbasegetnumberofentries}
\constfunc{uint }{GetNumberOfEntries}{\param{bool }{bRecursive = FALSE}}
\constfunc{uint}{GetNumberOfGroups}{\param{bool }{bRecursive = FALSE}}
-Get number of entries/subgroups in the current group, with or without
-its subgroups.
+Get number of entries/subgroups in the current group, with or without its
+subgroups.
\membersection{wxConfigBase::GetPath}\label{wxconfigbasegetpath}
\membersection{wxConfigBase::Read}\label{wxconfigbaseread}
-\constfunc{bool}{Read}{\param{const wxString\& }{key}, \param{wxString*}{ str}}
+\constfunc{bool}{Read}{\param{const wxString\& }{key}, \param{wxString*}{
+str}}
-Read a string from the key, returning TRUE if the value was read. If the key was not
-found, {\it str} is not changed.
+Read a string from the key, returning TRUE if the value was read. If the key
+was not found, {\it str} is not changed.
-\constfunc{bool}{Read}{\param{const wxString\& }{key}, \param{wxString*}{ str}, \param{const wxString\& }{defaultVal}}
+\constfunc{bool}{Read}{\param{const wxString\& }{key}, \param{wxString*}{
+str}, \param{const wxString\& }{defaultVal}}
-Read a string from the key. The default value is returned if the key was not found.
+Read a string from the key. The default value is returned if the key was not
+found.
Returns TRUE if value was really read, FALSE if the default was used.
-\constfunc{wxString}{Read}{\param{const wxString\& }{key}, \param{const wxString\& }{defaultVal}}
+\constfunc{wxString}{Read}{\param{const wxString\& }{key}, \param{const
+wxString\& }{defaultVal}}
Another version of {\it Read()}, returning the string value directly.
\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{long*}{ l}}
-Reads a long value, returning TRUE if the value was
-found. If the value was not found, {\it l} is not changed.
+Reads a long value, returning TRUE if the value was found. If the value was
+not found, {\it l} is not changed.
-\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{long*}{ l}, \param{long}{ defaultVal}}
+\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{long*}{ l},
+\param{long}{ defaultVal}}
-Reads a long value, returning TRUE if the value was
-found. If the value was not found, {\it defaultVal} is used instead.
+Reads a long value, returning TRUE if the value was found. If the value was
+not found, {\it defaultVal} is used instead.
-\constfunc{long }{Read}{\param{const wxString\& }{key}, \param{long}{ defaultVal}}
+\constfunc{long }{Read}{\param{const wxString\& }{key}, \param{long}{
+defaultVal}}
-Reads a long value from the key and returns it. {\it defaultVal} is returned if the key is not
-found.
+Reads a long value from the key and returns it. {\it defaultVal} is returned
+if the key is not found.
NB: writing
-{\small
-\begin{verbatim}
- conf->Read("key", 0);
-\end{verbatim}
-}
+{\small \begin{verbatim} conf->Read("key", 0); \end{verbatim} }
-won't work because the call is ambiguous: compiler can not choose between two {\it Read} functions. Instead, write:
+won't work because the call is ambiguous: compiler can not choose between two
+{\it Read} functions. Instead, write:
-{\small
-\begin{verbatim}
- conf->Read("key", 0l);
-\end{verbatim}
-}
+{\small \begin{verbatim} conf->Read("key", 0l); \end{verbatim} }
\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{double*}{ d}}
-Reads a double value, returning TRUE if the value was
-found. If the value was not found, {\it d} is not changed.
+Reads a double value, returning TRUE if the value was found. If the value was
+not found, {\it d} is not changed.
-\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{double*}{ d}, \param{double}{ defaultVal}}
+\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{double*}{ d},
+ \param{double}{ defaultVal}}
-Reads a double value, returning TRUE if the value was
-found. If the value was not found, {\it defaultVal} is used instead.
+Reads a double value, returning TRUE if the value was found. If the value was
+not found, {\it defaultVal} is used instead.
\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{bool*}{ b}}
-Reads a bool value, returning TRUE if the value was
-found. If the value was not found, {\it b} is not changed.
+Reads a bool value, returning TRUE if the value was found. If the value was
+not found, {\it b} is not changed.
+
+\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{bool*}{ d},
+\param{bool}{ defaultVal}}
+
+Reads a bool value, returning TRUE if the value was found. If the value was
+not found, {\it defaultVal} is used instead.
+
+\pythonnote{In place of a single overloaded method name, wxPython
+implements the following methods:\par
+\indented{2cm}{\begin{twocollist}
+\twocolitem{\bf{Read(key, default="")}}{Returns a string.}
+\twocolitem{\bf{ReadInt(key, default=0)}}{Returns an int.}
+\twocolitem{\bf{ReadFloat(key, default=0.0)}}{Returns a floating point number.}
+\end{twocollist}}
+}
+
+\membersection{wxConfigBase::RenameEntry}\label{wxconfigbaserenameentry}
+
+\func{bool}{RenameEntry}{\param{const wxString\& }{ oldName}, \param{const wxString\& }{ newName}}
+
+Renames an entry in the current group. The entries names (both the old and
+the new one) shouldn't contain backslashes, i.e. only simple names and not
+arbitrary paths are accepted by this function.
+
+Returns FALSE if the {\it oldName} doesn't exist or if {\it newName} already
+exists.
+
+\membersection{wxConfigBase::RenameGroup}\label{wxconfigbaserenamegroup}
-\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{bool*}{ d}, \param{bool}{ defaultVal}}
+\func{bool}{RenameGroup}{\param{const wxString\& }{ oldName}, \param{const wxString\& }{ newName}}
-Reads a bool value, returning TRUE if the value was
-found. If the value was not found, {\it defaultVal} is used instead.
+Renames a subgroup of the current group. The subgroup names (both the old and
+the new one) shouldn't contain backslashes, i.e. only simple names and not
+arbitrary paths are accepted by this function.
+
+Returns FALSE if the {\it oldName} doesn't exist or if {\it newName} already
+exists.
\membersection{wxConfigBase::Set}\label{wxconfigbaseset}
Sets the config object as the current one, returns the pointer to the previous
current object (both the parameter and returned value may be NULL)
-\membersection{wxConfigBase::SetAppName}\label{wxconfigbasesetappname}
-
-\func{void }{SetAppName}{\param{const wxString\&}{ appName}}
-
-Sets the application name.
-
\membersection{wxConfigBase::SetExpandingEnvVars}\label{wxconfigbasesetexpandingenvvars}
\func{void}{SetExpandEnvVars }{\param{bool }{bDoIt = TRUE}}
\func{void}{SetPath}{\param{const wxString\& }{strPath}}
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.
+otherwise it's a relative path. '..' is supported. If the strPath doesn't
+exist it is created.
\membersection{wxConfigBase::SetRecordDefaults}\label{wxconfigbasesetrecorddefaults}
Sets whether defaults are written back to the config file.
-If on (default is off) all default values are written back to the config file. This allows
-the user to see what config options may be changed and is probably useful only
-for wxFileConfig.
-
-\membersection{wxConfigBase::SetVendorName}\label{wxconfigbasesetvendorname}
-
-\func{void}{SetVendorName}{\param{const wxString\&}{ vendorName}}
-
-Sets the vendor name.
+If on (default is off) all default values are written back to the config file.
+This allows the user to see what config options may be changed and is probably
+useful only for wxFileConfig.
\membersection{wxConfigBase::Write}\label{wxconfigbasewrite}
-\func{bool}{Write}{\param{const wxString\& }{ key}, \param{const wxString\& }{ value}}
+\func{bool}{Write}{\param{const wxString\& }{ key}, \param{const wxString\& }{
+value}}
\func{bool}{Write}{\param{const wxString\& }{ key}, \param{long}{ value}}
\func{bool}{Write}{\param{const wxString\& }{ key}, \param{bool}{ value}}
-These functions write the specified value to the config file and
-return TRUE on success.
+These functions write the specified value to the config file and return TRUE
+on success.
+
+\pythonnote{In place of a single overloaded method name, wxPython
+implements the following methods:\par
+\indented{2cm}{\begin{twocollist}
+\twocolitem{\bf{Write(key, value)}}{Writes a string.}
+\twocolitem{\bf{WriteInt(key, value)}}{Writes an int.}
+\twocolitem{\bf{WriteFloat(key, value)}}{Writes a floating point number.}
+\end{twocollist}}
+}
+
+
+
projects / wxWidgets.git / blobdiff