fix: 圆弧形

src/components/view_file/components/vendors/pptx/PPT.vue

@@ -2,7 +2,7 @@
  * @Author: LiZhiWei
  * @Date: 2025-04-10 14:38:27
  * @LastEditors: LiZhiWei
- * @LastEditTime: 2025-04-21 09:59:47
+ * @LastEditTime: 2025-04-21 17:15:13
  * @Description:
 -->
 <template>
@@ -966,6 +966,48 @@ export default {
 
           svg.appendChild(triangle)
           break
+        case 'arc':
+          const arc = document.createElementNS('http://www.w3.org/2000/svg', 'path')
+          
+          // 计算弧形的参数
+          const arcRadius = Math.min(element.width, element.height) / 2
+          
+          // 绘制弧形路径
+          arc.setAttribute(
+            'd',
+            `M${arcRadius},0 ` +
+            `A${arcRadius},${arcRadius} 0 1 1 ${arcRadius * 0.15},${arcRadius * 0.5}`
+          )
+
+          // 设置填充色
+          arc.setAttribute('fill', 'transparent')
+
+          // 设置边框
+          if (element.borderWidth > 0) {
+            arc.setAttribute('stroke', element.borderColor || '#000')
+            arc.setAttribute('stroke-width', element.borderWidth || 0.5)
+
+            // 处理虚线边框
+            if (element.borderType === 'dotted' || element.borderType === 'dashed') {
+              if (element.borderStrokeDasharray) {
+                arc.setAttribute('stroke-dasharray', element.borderStrokeDasharray)
+              } else if (element.borderType === 'dotted') {
+                arc.setAttribute('stroke-dasharray', '2, 2')
+                arc.setAttribute('stroke-linecap', 'round')
+              } else if (element.borderType === 'dashed') {
+                arc.setAttribute('stroke-dasharray', '6, 3')
+              }
+            }
+
+            arc.setAttribute('vector-effect', 'non-scaling-stroke')
+            arc.setAttribute('shape-rendering', 'geometricPrecision')
+          }else {
+            arc.setAttribute('stroke', element.borderColor || '#000')
+            arc.setAttribute('stroke-width', 0.5)
+          }
+
+          svg.appendChild(arc)
+          break
         case 'custom':
           const customPath = document.createElementNS(
             'http://www.w3.org/2000/svg',