2 files changed, 60 insertions, 7 deletions
diff --git a/logic/state.cpp b/logic/state.cpp
new file mode 100644
index 00000000..afdf5b12
--- /dev/null
+++ b/logic/state.cpp
@@ -0,0 +1,45 @@
+#include "state.hpp"
+
+#include <iterator>
+
+using dylib_ptr = Modules::dylib_ptr;
+using dylib_list = Modules::dylib_list;
+
+std::tuple<dylib_ptr, int> State::module_by_name(const QString& name, dylib_list& list)
+{
+    auto it = std::find_if(list.cbegin(), list.cend(), [&name](const dylib_ptr& lib) {
+        if (!lib)
+            return name.isEmpty();
+        else
+            return name == lib->module_name;
+    });
+
+    if (it == list.cend())
+        return { nullptr, -1 };
+    else
+        return { *it, int(std::distance(list.cbegin(), it)) };
+}
+
+State::State(const QString& library_path) :
+    modules(library_path),
+    ev(modules.extensions()),
+    pose(s.all_axis_opts)
+{}
+
+dylib_ptr State::current_tracker()
+{
+    auto [ptr, idx] = module_by_name(m.tracker_dll, modules.trackers());
+    return ptr;
+}
+
+dylib_ptr State::current_protocol()
+{
+    auto [ptr, idx] = module_by_name(m.protocol_dll, modules.protocols());
+    return ptr;
+}
+
+dylib_ptr State::current_filter()
+{
+    auto [ptr, idx] = module_by_name(m.filter_dll, modules.filters());
+    return ptr;
+}
diff --git a/logic/state.hpp b/logic/state.hpp
index c400df18..abce1daf 100644
--- a/logic/state.hpp
+++ b/logic/state.hpp
@@ -14,19 +14,27 @@
 #include "mappings.hpp"
 #include "extensions.hpp"
 #include "work.hpp"
-#include <vector>
+#include "export.hpp"
+
+#include <memory>
 #include <QString>
 
-struct State
+struct OTR_LOGIC_EXPORT State
 {
-    explicit State(const QString& library_path) :
-        modules(library_path),
-        ev(modules.extensions()),
-        pose(s.all_axis_opts)
-    {}
+    using dylib_ptr = Modules::dylib_ptr;
+    using dylib_list = Modules::dylib_list;
+
+    explicit State(const QString& library_path);
+    static std::tuple<dylib_ptr, int> module_by_name(const QString& name, dylib_list& list);
+
+    dylib_ptr current_tracker();
+    dylib_ptr current_protocol();
+    dylib_ptr current_filter();
+
     Modules modules;
     event_handler ev;
     main_settings s;
+    module_settings m;
     Mappings pose;
     std::shared_ptr<Work> work;
 };