X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/955a919785b76a1826e6b8d55f696a0dfb62a318..3d1f1919657af3ccd160b88b83d3748d0335f319:/include/wx/app.h

diff --git a/include/wx/app.h b/include/wx/app.h
index 35d9b5d06e..c95c47751c 100644
--- a/include/wx/app.h
+++ b/include/wx/app.h
@@ -26,7 +26,7 @@
 #include "wx/build.h"
 #include "wx/init.h"        // we must declare wxEntry()
 
-class WXDLLIMPEXP_CORE wxApp;
+class WXDLLIMPEXP_BASE wxAppConsole;
 class WXDLLIMPEXP_BASE wxAppTraits;
 class WXDLLIMPEXP_BASE wxCmdLineParser;
 class WXDLLIMPEXP_BASE wxLog;
@@ -37,7 +37,7 @@ class WXDLLIMPEXP_BASE wxMessageOutput;
 // ----------------------------------------------------------------------------
 
 // the type of the function used to create a wxApp object on program start up
-typedef wxApp* (*wxAppInitializerFunction)();
+typedef wxAppConsole* (*wxAppInitializerFunction)();
 
 // ----------------------------------------------------------------------------
 // constants
@@ -75,6 +75,7 @@ private:
 };
 #endif // wxUSE_GUI
 
+
 // ----------------------------------------------------------------------------
 // wxAppConsole: wxApp for non-GUI applications
 // ----------------------------------------------------------------------------
@@ -270,6 +271,13 @@ public:
     static wxAppInitializerFunction GetInitializerFunction()
         { return ms_appInitFn; }
 
+    // accessors for ms_appInstance field (external code might wish to modify
+    // it, this is why we provide a setter here as well, but you should really
+    // know what you're doing if you call it), wxTheApp is usually used instead
+    // of GetInstance()
+    static wxAppConsole *GetInstance() { return ms_appInstance; }
+    static void SetInstance(wxAppConsole *app) { ms_appInstance = app; }
+
 
     // command line arguments (public for backwards compatibility)
     int      argc;
@@ -284,6 +292,10 @@ protected:
     // function used for dynamic wxApp creation
     static wxAppInitializerFunction ms_appInitFn;
 
+    // the one and only global application object
+    static wxAppConsole *ms_appInstance;
+
+
     // application info (must be set from the user code)
     wxString m_vendorName,      // vendor name (ACME Inc)
              m_appName,         // app name
@@ -512,21 +524,24 @@ protected:
         #include "wx/os2/app.h"
     #endif
 #else // !GUI
-    // can't use typedef because wxApp forward declared as a class
-    class WXDLLIMPEXP_BASE wxApp : public wxAppConsole
-    {
-    };
+    // allow using just wxApp (instead of wxAppConsole) in console programs
+    typedef wxAppConsole wxApp;
 #endif // GUI/!GUI
 
 // ----------------------------------------------------------------------------
 // the global data
 // ----------------------------------------------------------------------------
 
-// the one and only application object - use of wxTheApp in application code
-// is discouraged, consider using DECLARE_APP() after which you may call
-// wxGetApp() which will return the object of the correct type (i.e. MyApp and
-// not wxApp)
-WXDLLIMPEXP_DATA_BASE(extern wxApp*) wxTheApp;
+// for compatibility, we define this macro to access the global application
+// object of type wxApp
+//
+// note that instead of using of wxTheApp in application code you should
+// consider using DECLARE_APP() after which you may call wxGetApp() which will
+// return the object of the correct type (i.e. MyApp and not wxApp)
+//
+// the cast is safe as in GUI build we only use wxApp, not wxAppConsole, and in
+// console mode it does nothing at all
+#define wxTheApp ((wxApp *)wxApp::GetInstance())
 
 // ----------------------------------------------------------------------------
 // global functions
@@ -600,9 +615,9 @@ public:
 // Use this macro if you want to define your own main() or WinMain() function
 // and call wxEntry() from there.
 #define IMPLEMENT_APP_NO_MAIN(appname)                                      \
-    wxApp *wxCreateApp()                                                    \
+    wxAppConsole *wxCreateApp()                                             \
     {                                                                       \
-        wxApp::CheckBuildOptions(wxBuildOptions());                         \
+        wxAppConsole::CheckBuildOptions(wxBuildOptions());                  \
         return new appname;                                                 \
     }                                                                       \
     wxAppInitializer                                                        \