Mostly some UI stuff

src-interface/error.cpp

@@ -0,0 +1,29 @@
+#include "error.h"
+#include "imgui/imgui.h"
+#include <string>
+
+namespace satdump
+{
+    namespace error
+    {
+        bool hasError = false;
+        std::string error_title;
+        std::string error_message;
+
+        void set_error(std::string title, std::string description)
+        {
+            error_title = title;
+            error_message = description;
+            hasError = true;
+        }
+
+        void render()
+        {
+            ImGui::Begin(error_title.c_str(), &hasError);
+            ImGui::TextColored(ImColor(255, 0, 0), "%s", error_message.c_str());
+            if (ImGui::Button("Close"))
+                hasError = false;
+            ImGui::End();
+        }
+    }
+}