display MessageBox in win32 on fatal errors

src/framework/core/logger.cpp

@@ -22,6 +22,7 @@
 
 #include "logger.h"
 #include "eventdispatcher.h"
+#include <framework/platform/platform.h>
 
 Logger g_logger;
 
@@ -47,6 +48,7 @@ void Logger::log(Fw::LogLevel level, std::string message)
 
     if(level == Fw::LogFatal) {
         m_terminated = true;
+        g_platform.displayFatalError(message);
         exit(-1);
     }
 }

src/framework/core/modulemanager.cpp

@@ -42,7 +42,7 @@ void ModuleManager::discoverAndLoadModules()
     for(const ModulePtr& module : m_modules) {
         if(!module->isLoaded() && module->autoLoad()) {
             if(!module->load())
-                logFatal("cannot continue to run");
+                logFatal("A required module has failed to load, cannot continue to run.");
         }
     }
 }

src/framework/core/resourcemanager.cpp

@@ -52,7 +52,7 @@ void ResourceManager::init(const char* argv0, const char *appName)
     }
 
     if(!found)
-        logFatal("could not find modules directory");
+        logFatal("Could not find modules directory.");
 
     // setup write directory
     std::string dir = g_platform.getAppUserDir();

src/framework/platform/platform.h

@@ -82,6 +82,8 @@ public:
     /// Get the app user directory, the place to save files configurations files
     std::string getAppUserDir();
 
+    void displayFatalError(const std::string& message);
+
 private:
     int m_lastTicks;
 };

src/framework/platform/win32platform.cpp

@@ -289,7 +289,7 @@ void Platform::init(PlatformListener* platformListener, const char *appName)
     wc.lpszClassName            = win32.appName.c_str();                        // Set The Class Name
 
     if(!RegisterClassA(&wc))
-        logFatal("FATAL ERROR: Failed to register the window class.");
+        logFatal("Failed to register the window class.");
 
     // force first tick
     updateTicks();
@@ -737,3 +737,9 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
     }
     return 0;
 }
+
+void Platform::displayFatalError(const std::string& message)
+{
+    MessageBoxA(NULL, message.c_str(), "Fatal Error", MB_OK | MB_ICONERROR);
+}
+

src/framework/platform/x11platform.cpp

@@ -962,3 +962,8 @@ std::string Platform::getAppUserDir()
         logError("Couldn't create directory for saving configuration file. (",sdir.str(),")");
     return sdir.str();
 }
+
+void Platform::displayFatalError(const std::string& message)
+{
+    // nothing to do
+}