wxWidgets/interface/wx/stdpaths.h
Vadim Zeitlin 9508a056c1 Document wxStandardPaths vendor-related changes.
The change in the values returned by wxStandardPaths functions is important as
it's incompatible with 2.8 if the application defines a vendor name so must be
mentioned in docs/changes.txt.

Also update the documentation of the class itself and mention UseAppInfo() in
the overview.

Closes #11189.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61883 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2009-09-12 10:41:55 +00:00

334 lines
13 KiB
Objective-C

/////////////////////////////////////////////////////////////////////////////
// Name: stdpaths.h
// Purpose: interface of wxStandardPaths
// Author: wxWidgets team
// RCS-ID: $Id$
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
/**
@class wxStandardPaths
wxStandardPaths returns the standard locations in the file system and should be
used by applications to find their data files in a portable way.
In the description of the methods below, the example return values are given
for the Unix, Windows and Mac OS X systems, however please note that these are
just the examples and the actual values may differ. For example, under Windows:
the system administrator may change the standard directories locations, i.e.
the Windows directory may be named @c "W:\Win2003" instead of
the default @c "C:\Windows".
Notice that in the examples below the string @c appname may be either just
the application name (as returned by wxApp::GetAppName()) or a combination
of the vendor name (wxApp::GetVendorName()) and the application name, with
a path separator between them. By default, the vendor name is used under
Windows and OS X but not under other Unix systems, see UseAppInfo().
The other placeholders should be self-explanatory: the string @c username
should be replaced with the value the name of the currently logged in user.
and @c prefix is only used under Unix and is @c /usr/local by default but
may be changed using wxStandardPaths::SetInstallPrefix().
The directories returned by the methods of this class may or may not exist.
If they don't exist, it's up to the caller to create them, wxStandardPaths doesn't
do it.
Finally note that these functions only work with standardly packaged
applications. I.e. under Unix you should follow the standard installation
conventions and under Mac you should create your application bundle according
to the Apple guidelines. Again, this class doesn't help you to do it.
This class is MT-safe: its methods may be called concurrently from different
threads without additional locking.
Note that you don't allocate an instance of class wxStandardPaths, but retrieve the
global standard paths object using @c wxStandardPaths::Get on which you call the
desired methods.
@library{wxbase}
@category{file}
@see wxFileConfig
*/
class wxStandardPaths
{
public:
/**
MSW-specific function undoing the effect of IgnoreAppSubDir() calls.
After a call to this function the program directory will be exactly the
directory containing the main application binary, i.e. it undoes the
effect of any previous IgnoreAppSubDir() calls including the ones done
indirectly by IgnoreAppBuildSubDirs() called from the class
constructor.
@since 2.9.1
*/
void DontIgnoreAppSubDir();
/**
Returns reference to the unique global standard paths object.
*/
static wxStandardPaths& Get();
/**
Return the directory for the document files used by this application.
If the application-specific directory doesn't exist, this function
returns GetDocumentsDir().
Example return values:
- Unix: @c ~/appname
- Windows: @c "C:\Documents and Settings\username\My Documents\appname"
- Mac: @c ~/Documents/appname
@since 2.9.0
@see GetAppDocumentsDir()
*/
virtual wxString GetAppDocumentsDir() const;
/**
Return the directory containing the system config files.
Example return values:
- Unix: @c /etc
- Windows: @c "C:\Documents and Settings\All Users\Application Data"
- Mac: @c /Library/Preferences
@see wxFileConfig
*/
virtual wxString GetConfigDir() const;
/**
Return the location of the applications global, i.e. not user-specific,
data files.
Example return values:
- Unix: @c prefix/share/appname
- Windows: the directory where the executable file is located
- Mac: @c appname.app/Contents/SharedSupport bundle subdirectory
@see GetLocalDataDir()
*/
virtual wxString GetDataDir() const;
/**
Return the directory containing the current user's documents.
Example return values:
- Unix: @c ~ (the home directory)
- Windows: @c "C:\Documents and Settings\username\My Documents"
- Mac: @c ~/Documents
@since 2.7.0
@see GetAppDocumentsDir()
*/
virtual wxString GetDocumentsDir() const;
/**
Return the directory and the filename for the current executable.
Example return values:
- Unix: @c /usr/local/bin/exename
- Windows: @c "C:\Programs\AppFolder\exename.exe"
- Mac: @c /Programs/exename
*/
virtual wxString GetExecutablePath() const;
/**
Return the program installation prefix, e.g. @c /usr, @c /opt or @c /home/zeitlin.
If the prefix had been previously by SetInstallPrefix(), returns that
value, otherwise tries to determine it automatically (Linux only right now)
and finally returns the default @c /usr/local value if it failed.
@note This function is only available under Unix.
*/
wxString GetInstallPrefix() const;
/**
Return the location for application data files which are host-specific and
can't, or shouldn't, be shared with the other machines.
This is the same as GetDataDir() except under Unix where it returns @c /etc/appname.
*/
virtual wxString GetLocalDataDir() const;
/**
Return the localized resources directory containing the resource files of the
specified category for the given language.
In general this is just the same as @a lang subdirectory of GetResourcesDir()
(or @c lang.lproj under Mac OS X) but is something quite different for
message catalog category under Unix where it returns the standard
@c prefix/share/locale/lang/LC_MESSAGES directory.
@since 2.7.0
*/
virtual wxString GetLocalizedResourcesDir(const wxString& lang,
ResourceCat category) const;
/**
Return the directory where the loadable modules (plugins) live.
Example return values:
- Unix: @c prefix/lib/appname
- Windows: the directory of the executable file
- Mac: @c appname.app/Contents/PlugIns bundle subdirectory
@see wxDynamicLibrary
*/
virtual wxString GetPluginsDir() const;
/**
Return the directory where the application resource files are located.
The resources are the auxiliary data files needed for the application to run
and include, for example, image and sound files it might use.
This function is the same as GetDataDir() for all platforms except Mac OS X.
Example return values:
- Unix: @c prefix/share/appname
- Windows: the directory where the executable file is located
- Mac: @c appname.app/Contents/Resources bundle subdirectory
@since 2.7.0
@see GetLocalizedResourcesDir()
*/
virtual wxString GetResourcesDir() const;
/**
Return the directory for storing temporary files.
To create unique temporary files, it is best to use wxFileName::CreateTempFileName
for correct behaviour when multiple processes are attempting to create temporary files.
@since 2.7.2
*/
virtual wxString GetTempDir() const;
/**
Return the directory for the user config files:
- Unix: @c ~ (the home directory)
- Windows: @c "C:\Documents and Settings\username\Application Data"
- Mac: @c ~/Library/Preferences
Only use this method if you have a single configuration file to put in this
directory, otherwise GetUserDataDir() is more appropriate.
*/
virtual wxString GetUserConfigDir() const;
/**
Return the directory for the user-dependent application data files:
- Unix: @c ~/.appname
- Windows: @c "C:\Documents and Settings\username\Application Data\appname"
- Mac: @c "~/Library/Application Support/appname"
*/
virtual wxString GetUserDataDir() const;
/**
Return the directory for user data files which shouldn't be shared with
the other machines.
This is the same as GetUserDataDir() for all platforms except Windows where it returns
@c "C:\Documents and Settings\username\Local Settings\Application Data\appname"
*/
virtual wxString GetUserLocalDataDir() const;
/**
MSW-specific function to customize application directory detection.
This class supposes that data, plugins &c files are located under the
program directory which is the directory containing the application
binary itself. But sometimes this binary may be in a subdirectory of
the main program directory, e.g. this happens in at least the following
common cases:
- The program is in "bin" subdirectory of the installation directory.
- The program is in "debug" subdirectory of the directory containing
sources and data files during development
By calling this function you instruct the class to remove the last
component of the path if it matches its argument. Notice that it may be
called more than once, e.g. you can call both IgnoreAppSubDir("bin") and
IgnoreAppSubDir("debug") to take care of both production and development
cases above but that each call will only remove the last path component.
Finally note that the argument can contain wild cards so you can also
call IgnoreAppSubDir("vc*msw*") to ignore all build directories at once
when using wxWidgets-inspired output directories names.
@since 2.9.1
@see IgnoreAppBuildSubDirs()
@param subdirPattern
The subdirectory containing the application binary which should be
ignored when determining the top application directory. The pattern
is case-insensitive and may contain wild card characters @c '?' and
@c '*'.
*/
void IgnoreAppSubDir(const wxString& subdirPattern);
/**
MSW-specific function to ignore all common build directories.
This function calls IgnoreAppSubDir() with all common values for build
directory, e.g. @c "debug" and @c "release".
It is called by the class constructor and so the build directories are
always ignored by default. You may use DontIgnoreAppSubDir() to avoid
ignoring them if this is inappropriate for your application.
@since 2.9.1
*/
void IgnoreAppBuildSubDirs();
/**
Returns location of Windows shell special folder.
This function is, by definition, MSW-specific. It can be used to access
pre-defined shell directories not covered by the existing methods of
this class, e.g.:
@code
#ifdef __WXMSW__
// get the location of files waiting to be burned on a CD
wxString cdburnArea =
wxStandardPaths::MSWGetShellDir(CSIDL_CDBURN_AREA);
#endif // __WXMSW__
@endcode
@param csidl
@since 2.9.1
*/
static wxString MSWGetShellDir(int csidl);
/**
Lets wxStandardPaths know about the real program installation prefix on a Unix
system. By default, the value returned by GetInstallPrefix() is used.
Although under Linux systems the program prefix may usually be determined
automatically, portable programs should call this function. Usually the prefix
is set during program configuration if using GNU autotools and so it is enough
to pass its value defined in @c config.h to this function.
@note This function is only available under Unix.
*/
void SetInstallPrefix(const wxString& prefix);
/**
Controls what application information is used when constructing paths that
should be unique to this program, such as the application data directory, the
plugins directory on Unix, etc.
Valid values for @a info are @c AppInfo_None and either one or combination
of @c AppInfo_AppName and @c AppInfo_VendorName. The first one tells this
class to not use neither application nor vendor name in the paths.
By default, only the application name is used under Unix systems but both
application and vendor names are used under Windows and Mac.
@since 2.9.0
*/
void UseAppInfo(int info);
};