Make gui panic alerts thread safe in linux.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6375 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/DolphinWX/Src/Frame.cpp

@@ -351,6 +351,8 @@ CFrame::CFrame(wxFrame* parent,
 	for (int i = 0; i <= IDM_CODEWINDOW - IDM_LOGWINDOW; i++)
 		bFloatWindow[i] = false;
 
+	panic_event.Init();
+
 	if (ShowLogWindow) SConfig::GetInstance().m_InterfaceLogWindow = true;
 
 	// Give it a console early to show potential messages from this onward
@@ -490,6 +492,8 @@ CFrame::~CFrame()
 
 	ClosePages();
 
+	panic_event.Shutdown();
+
 	delete m_Mgr;
 }
 
@@ -647,6 +651,14 @@ void CFrame::OnHostMessage(wxCommandEvent& event)
 			m_RenderParent->SetCursor(wxCURSOR_BLANK);
 		break;
 
+#ifdef __WXGTK__
+	case IDM_PANIC:
+		bPanicResult = (wxYES == wxMessageBox(event.GetString(), 
+					wxT("Warning"), event.GetInt() ? wxYES_NO : wxOK));
+		panic_event.Set();
+		break;
+#endif
+
 #if defined(HAVE_X11) && HAVE_X11
 	case WM_USER_STOP:
 		DoStop();

Source/Core/DolphinWX/Src/Frame.h

@@ -135,6 +135,11 @@ class CFrame : public CRenderFrame
 		void DoFullscreen(bool bF);
 		void ToggleDisplayMode (bool bFullscreen);
 
+		#ifdef __WXGTK__
+		Common::Event panic_event;
+		bool bPanicResult;
+		#endif
+
 		#if defined(HAVE_XRANDR) && HAVE_XRANDR
 		X11Utils::XRRConfiguration *m_XRRConfig;
 		#endif

Source/Core/DolphinWX/Src/Globals.h

@@ -237,6 +237,7 @@ enum
 	IDM_UPDATESTATUSBAR,
 	IDM_UPDATETITLE,
 	IDM_UPDATEBREAKPOINTS,
+	IDM_PANIC,
 	IDM_HOST_MESSAGE,
 
 	IDM_MPANEL, ID_STATUSBAR,

Source/Core/DolphinWX/Src/Main.cpp

@@ -452,9 +452,23 @@ void Host_SysMessage(const char *fmt, ...)
 
 bool wxMsgAlert(const char* caption, const char* text, bool yes_no, int /*Style*/)
 {
-	return wxYES == wxMessageBox(wxString::FromAscii(text), 
-				 wxString::FromAscii(caption),
-				 (yes_no)?wxYES_NO:wxOK);
+#ifdef __WXGTK__
+	if (wxIsMainThread())
+#endif
+		return wxYES == wxMessageBox(wxString::FromAscii(text), 
+				wxString::FromAscii(caption),
+				(yes_no) ? wxYES_NO : wxOK);
+#ifdef __WXGTK__
+	else
+	{
+		wxCommandEvent event(wxEVT_HOST_COMMAND, IDM_PANIC);
+		event.SetString(wxString::FromAscii(text));
+		event.SetInt(yes_no);
+		main_frame->GetEventHandler()->AddPendingEvent(event);
+		main_frame->panic_event.Wait();
+		return main_frame->bPanicResult;
+	}
+#endif
 }
 
 // Accessor for the main window class