feat(processing): implement mask deletion functionality

src/pages/view/components/viewers/stack.image.viewer.tsx

@@ -9,7 +9,7 @@ import { SystemMode } from '@/states/systemModeSlice';
 import store from '@/states/store';
 import { clearAction } from '@/states/view/functionAreaSlice';
 import { useDispatch } from 'react-redux';
-import { SplineROITool } from '@cornerstonejs/tools';
+import { annotation, SplineROITool } from '@cornerstonejs/tools';
 import { eventTarget } from '@cornerstonejs/core';
 
 const {
@@ -256,6 +256,40 @@ function addMask(): void {
     bindings: [{ mouseButton: MouseBindings.Primary }],
   });
 }
+
+function remoteMask(): void {
+  // 1. 获取所有 annotation
+  const all = annotation.state.getAllAnnotations();
+
+  // 2. 过滤出 LinearSplineROI 产生的
+  const toRemove = all.filter(
+    (a) => a.metadata?.toolName === 'LinearSplineROI'
+  );
+
+  // 3. 逐条删掉
+  toRemove.forEach((a) => {
+    if (a.annotationUID) {
+      annotation.state.removeAnnotation(a.annotationUID);
+    }
+  });
+  const viewport = cornerstone.getEnabledElementByViewportId(currentViewportId)
+    .viewport as cornerstone.StackViewport;
+  viewport.render();
+
+  console.log('Deleting Digital Mask');
+
+  const viewportElement = viewport.element;
+  const firstChild = viewportElement.firstChild;
+  if (firstChild) {
+    const canvasElements = Array.from(firstChild.childNodes).filter(
+      (child): child is Element =>
+        child instanceof Element && child.tagName === 'CANVAS'
+    );
+    canvasElements.slice(1).forEach((canvas) => {
+      firstChild.removeChild(canvas);
+    });
+  }
+}
 function HorizontalFlip(): void {
   const viewport = cornerstone.getEnabledElementByViewportId(currentViewportId)
     .viewport as cornerstone.StackViewport;
@@ -546,8 +580,7 @@ const StackViewer = ({
           addMask();
           break;
         case 'Delete Digital Mask':
-          // Implement the logic to delete the digital mask
-          console.log('Deleting Digital Mask');
+          remoteMask();
           break;
         case 'Adjust Brightness and Contrast':
           adjustBrightnessAndContrast();