interface/apptrait.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        apptrait.h
   3 // Purpose:     interface of wxAppTraits
   4 // Author:      wxWidgets team
   5 // RCS-ID:      $Id$
   6 // Licence:     wxWindows license
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 /**
  10     @class wxAppTraits
  11     @wxheader{apptrait.h}
  12
  13     The @b wxAppTraits class defines various configurable aspects of a wxApp.
  14     You can access it using wxApp::GetTraits function and you can
  15     create your own wxAppTraits overriding the
  16     wxApp::CreateTraits function.
  17
  18     By default, wxWidgets creates a @c wxConsoleAppTraits object for console
  19     applications
  20     (i.e. those applications linked against wxBase library only - see the
  21     @ref overview_librarieslist "Libraries list" page) and a @c wxGUIAppTraits
  22     object for GUI
  23     applications.
  24
  25     @library{wxbase}
  26     @category{FIXME}
  27
  28     @see @ref overview_wxappoverview "wxApp overview", 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
  36         wxRegConfig() class under MSW and
  37         wxFileConfig under all other platforms. The
  38         wxApp wxApp::GetAppName and
  39         wxApp::GetVendorName methods are used to determine the
  40         registry key or file name.
  41     */
  42     virtual wxConfigBase* CreateConfig();
  43
  44     /**
  45         Creates the global font mapper object used for encodings/charset mapping.
  46     */
  47     virtual wxFontMapper* CreateFontMapper();
  48
  49     /**
  50         Creates the default log target for the application.
  51     */
  52     virtual wxLog* CreateLogTarget();
  53
  54     /**
  55         Creates the global object used for printing out messages.
  56     */
  57     virtual wxMessageOutput* CreateMessageOutput();
  58
  59     /**
  60         Returns the renderer to use for drawing the generic controls (return value may
  61         be @NULL
  62         in which case the default renderer for the current platform is used);
  63         this is used in GUI mode only and always returns @NULL in console.
  64         NOTE: returned pointer will be deleted by the caller.
  65     */
  66     virtual wxRendererNative* CreateRenderer();
  67
  68     /**
  69         This method returns the name of the desktop environment currently
  70         running in a Unix desktop. Currently only "KDE" or "GNOME" are
  71         supported and the code uses the X11 session protocol vendor name
  72         to figure out, which desktop environment is running. The method
  73         returns an empty string otherwise and on all other platforms.
  74     */
  75     virtual wxString GetDesktopEnvironment() const;
  76
  77     /**
  78         Returns the wxStandardPaths object for the application.
  79         It's normally the same for wxBase and wxGUI except in the case of wxMac and
  80         wxCocoa.
  81     */
  82     virtual wxStandardPaths GetStandardPaths();
  83
  84     /**
  85         Returns the wxWidgets port ID used by the running program and eventually
  86         fills the given pointers with the values of the major and minor digits
  87         of the native toolkit currently used.
  88         The version numbers returned are thus detected at run-time and not compile-time
  89         (except when this is not possible e.g. wxMotif).
  90         E.g. if your program is using wxGTK port this function will return wxPORT_GTK
  91         and
  92         put in given pointers the versions of the GTK library in use.
  93         See wxPlatformInfo for more details.
  94     */
  95     virtual wxPortId GetToolkitVersion(int* major = NULL,
  96                                        int* minor = NULL);
  97
  98     /**
  99         Returns @true if @c fprintf(stderr) goes somewhere, @false otherwise.
 100     */
 101     virtual bool HasStderr();
 102
 103     /**
 104         Returns @true if the library was built as wxUniversal. Always returns
 105         @false for wxBase-only apps.
 106     */
 107     bool IsUsingUniversalWidgets() const;
 108
 109     /**
 110         Shows the assert dialog with the specified message in GUI mode or just prints
 111         the string to stderr in console mode.
 112         Returns @true to suppress subsequent asserts, @false to continue as before.
 113     */
 114     virtual bool ShowAssertDialog(const wxString& msg);
 115 };
 116