关键节点

editor/app/Features/Scene/SceneViewportSceneOverlay.h

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+#pragma once
+
+#include <XCEngine/UI/DrawData.h>
+#include <XCEngine/UI/Types.h>
+
+#include <vector>
+
+namespace XCEngine::UI::Editor::App {
+
+class BuiltInIcons;
+class EditorSceneRuntime;
+
+class SceneViewportSceneOverlay {
+public:
+    struct HitResult {
+        std::uint64_t entityId = 0;
+        float sortDepth = 0.0f;
+
+        bool HasHit() const {
+            return entityId != 0;
+        }
+    };
+
+    void SetBuiltInIcons(const BuiltInIcons* icons);
+    void ResetFrame();
+    void Refresh(
+        EditorSceneRuntime& sceneRuntime,
+        const ::XCEngine::UI::UIRect& viewportRect);
+    HitResult HitTest(const ::XCEngine::UI::UIPoint& point) const;
+    void Append(::XCEngine::UI::UIDrawList& drawList) const;
+    struct IconFrame {
+        std::uint64_t entityId = 0;
+        ::XCEngine::UI::UIRect rect = {};
+        ::XCEngine::UI::UITextureHandle texture = {};
+        float sortDepth = 0.0f;
+    };
+
+    struct Frame {
+        bool visible = false;
+        ::XCEngine::UI::UIRect clipRect = {};
+        std::vector<IconFrame> icons = {};
+    };
+
+private:
+    const BuiltInIcons* m_icons = nullptr;
+    Frame m_frame = {};
+};
+
+} // namespace XCEngine::UI::Editor::App