Storing and restoring DetachedWindowState

src/Insight/UserInterfaces/InsightWindow/Widgets/PaneState.hpp

@@ -1,11 +1,39 @@
 #pragma once
 
+#include <QSize>
+#include <QPoint>
+#include <optional>
+
 namespace Bloom::Widgets
 {
+    struct DetachedWindowState
+    {
+        QSize size;
+        QPoint position;
+
+        DetachedWindowState() = default;
+
+        DetachedWindowState(QSize size, QPoint position)
+            : size(size)
+            , position(position)
+        {}
+    };
+
     struct PaneState
     {
         bool activated = false;
+        bool attached = true;
 
-        explicit PaneState(bool activated): activated(activated) {};
+        std::optional<DetachedWindowState> detachedWindowState;
+
+        PaneState(
+            bool activated,
+            bool attached,
+            std::optional<DetachedWindowState> detachedWindowState
+        )
+            : activated(activated)
+            , attached(attached)
+            , detachedWindowState(detachedWindowState)
+        {};
     };
 }