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	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: apptrait.h
	3	// Purpose: interface of wxAppTraits
	4	// Author: wxWidgets team
	5	// RCS-ID: $Id$
	6	// Licence: wxWindows licence
	7	/////////////////////////////////////////////////////////////////////////////
	8
	9	/**
	10	@class wxAppTraits
	11
	12	The wxAppTraits class defines various configurable aspects of a wxApp.
	13	You can access it using wxApp::GetTraits() function and you can create your
	14	own wxAppTraits overriding the wxApp::CreateTraits() function.
	15
	16	Note that wxAppTraits is an abstract class since it contains many
	17	pure virtual functions.
	18	In fact, by default, wxWidgets creates a @c wxConsoleAppTraits object for
	19	console applications (i.e. those applications linked against wxBase library
	20	only - see the @ref page_libs page) and a @c wxGUIAppTraits object for GUI
	21	applications.
	22	Both these classes are derived by wxAppTraits and represent concrete
	23	implementation of the wxAppTraits interface.
	24
	25	@library{wxbase}
	26	@category{cfg}
	27
	28	@see @ref overview_app, wxApp
	29	*/
	30	class wxAppTraits
	31	{
	32	public:
	33	/**
	34	Called by wxWidgets to create the default configuration object for the
	35	application. The default version creates a registry-based wxRegConfig
	36	class under MSW and wxFileConfig under all other platforms.
	37
	38	The wxApp::GetAppName and wxApp::GetVendorName methods are used to
	39	determine the registry key or file name.
	40	*/
	41	virtual wxConfigBase* CreateConfig();
	42
	43	/**
	44	Used by wxWidgets to create the main event loop used by wxApp::OnRun().
	45
	46	The default implementation of this method in wxGUIAppTraits returns the
	47	usual platform-specific GUI event loop. The version in wxConsoleAppTraits
	48	returns a console-specific event loop which can be used to handle timer
	49	and socket events in console programs under Unix and MSW or @NULL under
	50	the other platforms where console event loops are not supported yet.
	51	*/
	52	virtual wxEventLoopBase *CreateEventLoop() = 0;
	53
	54	/**
	55	Creates the global font mapper object used for encodings/charset mapping.
	56	*/
	57	virtual wxFontMapper* CreateFontMapper() = 0;
	58
	59	/**
	60	Creates a wxLog class for the application to use for logging errors.
	61	The default implementation returns a new wxLogGui class.
	62
	63	@see wxLog
	64	*/
	65	virtual wxLog* CreateLogTarget() = 0;
	66
	67	/**
	68	Creates the global object used for printing out messages.
	69	*/
	70	virtual wxMessageOutput* CreateMessageOutput() = 0;
	71
	72	/**
	73	Returns the renderer to use for drawing the generic controls (return
	74	value may be @NULL in which case the default renderer for the current
	75	platform is used); this is used in GUI mode only and always returns @NULL
	76	in console.
	77
	78	@note the returned pointer needs to be deleted by the caller.
	79	*/
	80	virtual wxRendererNative* CreateRenderer() = 0;
	81
	82	/**
	83	This method returns the name of the desktop environment currently
	84	running in a Unix desktop. Currently only "KDE" or "GNOME" are
	85	supported and the code uses the X11 session protocol vendor name
	86	to figure out, which desktop environment is running. The method
	87	returns an empty string otherwise and on all other platforms.
	88	*/
	89	virtual wxString GetDesktopEnvironment() const = 0;
	90
	91	/**
	92	Returns the wxStandardPaths object for the application.
	93	It's normally the same for wxBase and wxGUI except in the case of wxMac
	94	and wxCocoa.
	95
	96	@note
	97	The returned reference is to a @c wxStandardPathsBase class but you
	98	can consider it to be equivalent to wxStandardPaths (which is documented).
	99	*/
	100	virtual wxStandardPaths& GetStandardPaths();
	101
	102	/**
	103	Returns the wxWidgets port ID used by the running program and eventually
	104	fills the given pointers with the values of the major and minor digits
	105	of the native toolkit currently used.
	106
	107	The version numbers returned are thus detected at run-time and not compile-time
	108	(except when this is not possible e.g. wxMotif).
	109
	110	E.g. if your program is using wxGTK port this function will return wxPORT_GTK
	111	and put in given pointers the versions of the GTK library in use.
	112	See wxPlatformInfo for more details.
	113	*/
	114	virtual wxPortId GetToolkitVersion(int* major = NULL, int* minor = NULL) const = 0;
	115
	116	/**
	117	Returns @true if @c fprintf(stderr) goes somewhere, @false otherwise.
	118	*/
	119	virtual bool HasStderr() = 0;
	120
	121	/**
	122	Returns @true if the library was built as wxUniversal.
	123	Always returns @false for wxBase-only apps.
	124	*/
	125	virtual bool IsUsingUniversalWidgets() const = 0;
	126
	127	/**
	128	Shows the assert dialog with the specified message in GUI mode or just prints
	129	the string to stderr in console mode.
	130	Returns @true to suppress subsequent asserts, @false to continue as before.
	131	*/
	132	virtual bool ShowAssertDialog(const wxString& msg) = 0;
	133	};
	134