refactored MainWindow and Engine, changed project structure

src/gui/gui_exceptions.hpp

@@ -0,0 +1,27 @@
+#pragma once
+
+
+#include "../common/std.hpp"
+#include "../common/UsefulException.hpp"
+
+namespace ougge::gui {
+
+#define SDLException() SDLException_(__FILE__, __func__, __LINE__)
+
+class SDLException_ : public UsefulException_ {
+public:
+    SDLException_(const std::string& _file, const std::string& _func, int line_n);
+};
+
+
+#define IMGException() IMGException_(__FILE__, __func__, __LINE__)
+
+class IMGException_ : public UsefulException_ {
+public:
+    IMGException_(const std::string& _file, const std::string& _func, int line_n);
+};
+
+
+#define SDL_TRY(EXPR) if(EXPR) throw ::ougge::gui::SDLException();
+
+}