Update wxWidgets to 3.1.0

From wxWidgets master 81570ae070b35c9d52de47b1f14897f3ff1a66c7.

include/wx/defs.h -- __w64 warning disable patch by comex brought forward.

include/wx/msw/window.h -- added GetContentScaleFactor() which was not implemented on Windows but is necessary for wxBitmap scaling on Mac OS X so it needs to work to avoid #ifdef-ing the code.

src/gtk/window.cpp -- Modified DoSetClientSize() to direct call wxWindowGTK::DoSetSize() instead of using public wxWindowBase::SetSize() which now prevents derived classes (like wxAuiToolbar) intercepting the call and breaking it. This matches Windows which does NOT need to call DoSetSize internally. End result is this fixes Dolphin's debug tools toolbars on Linux.

src/osx/window_osx.cpp -- Same fix as for GTK since it has the same issue.

src/msw/radiobox.cpp -- Hacked to fix display in HiDPI (was clipping off end of text).

Updated CMakeLists for Linux and Mac OS X. Small code changes to Dolphin to fix debug error boxes, deprecation warnings, and retain previous UI behavior on Windows.

Externals/wxWidgets3/include/wx/stdpaths.h

@@ -49,6 +49,15 @@ public:
         AppInfo_VendorName = 2   // the vendor name
     };
 
+    enum Dir
+    {
+        Dir_Documents,
+        Dir_Desktop,
+        Dir_Downloads,
+        Dir_Music,
+        Dir_Pictures,
+        Dir_Videos
+    };
 
     // return the global standard paths object
     static wxStandardPaths& Get();
@@ -130,7 +139,10 @@ public:
     //
     // C:\Documents and Settings\username\My Documents under Windows,
     // $HOME under Unix and ~/Documents under Mac
-    virtual wxString GetDocumentsDir() const;
+    virtual wxString GetDocumentsDir() const
+    {
+        return GetUserDir(Dir_Documents);
+    }
 
     // return the directory for the documents files used by this application:
     // it's a subdirectory of GetDocumentsDir() constructed using the
@@ -140,6 +152,7 @@ public:
     // return the temporary directory for the current user
     virtual wxString GetTempDir() const;
 
+    virtual wxString GetUserDir(Dir userDir) const;
 
     // virtual dtor for the base class
     virtual ~wxStandardPathsBase();
@@ -174,12 +187,8 @@ protected:
     #if defined(__WINDOWS__)
         #include "wx/msw/stdpaths.h"
         #define wxHAS_NATIVE_STDPATHS
-    // We want CoreFoundation paths on both CarbonLib and Darwin (for all ports)
-    #elif defined(__WXMAC__) || defined(__DARWIN__)
-        #include "wx/osx/core/stdpaths.h"
-        #define wxHAS_NATIVE_STDPATHS
-    #elif defined(__OS2__)
-        #include "wx/os2/stdpaths.h"
+    #elif defined(__WXOSX_COCOA__) || defined(__WXOSX_IPHONE__) || defined(__DARWIN__)
+        #include "wx/osx/cocoa/stdpaths.h"
         #define wxHAS_NATIVE_STDPATHS
     #elif defined(__UNIX__)
         #include "wx/unix/stdpaths.h"
@@ -208,7 +217,7 @@ public:
     virtual wxString GetLocalDataDir() const { return m_prefix; }
     virtual wxString GetUserDataDir() const { return m_prefix; }
     virtual wxString GetPluginsDir() const { return m_prefix; }
-    virtual wxString GetDocumentsDir() const { return m_prefix; }
+    virtual wxString GetUserDir(Dir WXUNUSED(userDir)) const { return m_prefix; }
 
 protected:
     // Ctor is protected because wxStandardPaths::Get() should always be used