2026-05-08-01-53-07 修正DICOM范围和切割Mask预览

WebSite/src/components/ProjectLibrary.tsx

@@ -657,12 +657,29 @@ export default function ProjectLibrary({
   const [actionMessage, setActionMessage] = useState('');
   const sliceRepeatRef = useRef<number | null>(null);
   const dicomRequestRef = useRef(0);
+  const preloadedProjectIdsRef = useRef(new Set<string>());
+
+  const preloadProjectAssets = (project: Project) => {
+    if (preloadedProjectIdsRef.current.has(project.id)) {
+      return;
+    }
+    preloadedProjectIdsRef.current.add(project.id);
+    const maxSlice = Math.max((project.dicomCount || 1) - 1, 0);
+    if (project.dicomCount > 0) {
+      void api.getDicomPreview(project.id, maxSlice, 'axial', 'default').catch(() => undefined);
+      void api.getDicomFusionVolume(project.id, maxSlice, maxSlice, 'soft').catch(() => undefined);
+    }
+    (project.stlFiles ?? []).slice(0, 3).forEach((fileName) => {
+      void fetch(`/api/projects/${project.id}/models/${encodeURIComponent(fileName)}/preview?limit=3500`).catch(() => undefined);
+    });
+  };
 
   const refreshProjects = () => {
     setLoading(true);
     return api.getProjects()
       .then((items) => {
         setProjects(items);
+        items.slice(0, 2).forEach(preloadProjectAssets);
         setSelectedProject((current) => {
           if (!current) {
             return items[0] ?? null;
@@ -677,6 +694,12 @@ export default function ProjectLibrary({
     refreshProjects();
   }, []);
 
+  useEffect(() => {
+    if (selectedProject) {
+      preloadProjectAssets(selectedProject);
+    }
+  }, [selectedProject?.id]);
+
   const filteredProjects = useMemo(() => {
     const keyword = search.trim().toLowerCase();
     if (!keyword) {