From 391de7fd0abeb5e5b3f9b9330e0f075c3c27c77d Mon Sep 17 00:00:00 2001
From: zhangheng <zhangheng@cowarobot.com>
Date: Fri, 3 Apr 2026 21:08:50 +0800
Subject: [PATCH] fix(tools): cross

---
 components/label/components/CrosshairComponent.tsx | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/components/label/components/CrosshairComponent.tsx b/components/label/components/CrosshairComponent.tsx
index 68d960e..e569746 100644
--- a/components/label/components/CrosshairComponent.tsx
+++ b/components/label/components/CrosshairComponent.tsx
@@ -21,6 +21,7 @@ const CrosshairComponent = (
   const { scale } = useTopToolsStore()
 
   const canvasRef = useRef<HTMLCanvasElement>(null)
+  const lastPointerRef = useRef<{ x: number; y: number } | null>(null)
 
   const getFixed = (sparsity: number) => {
     const pointIdx = String(sparsity).indexOf(".")
@@ -76,6 +77,7 @@ const CrosshairComponent = (
           ctx.beginPath()
           ctx.setLineDash([])
           ctx.strokeStyle = "#EF4444"
+          ctx.fillStyle = "#EF4444"
           let carveLineWidth = 1
           ctx.lineWidth = carveLineWidth
 
@@ -100,6 +102,7 @@ const CrosshairComponent = (
                 sparsity
               ).toFixed(fixed)
               const textWidth = ctx.measureText(text).width
+              ctx.fillStyle = "#EF4444"
               ctx.fillText(text, indexX - textWidth / 2, centerY - tickLength)
             } else {
               ctx.moveTo(indexX, centerY - tickLength / 2 - carveLineWidth)
@@ -143,7 +146,11 @@ const CrosshairComponent = (
       canvas.width = window.innerWidth
       canvas.height = window.innerHeight
       const rect = canvas.getBoundingClientRect()
-      drawCrosshair(rect.width / 2, rect.height / 2)
+      const center = lastPointerRef.current || {
+        x: rect.width / 2,
+        y: rect.height / 2,
+      }
+      drawCrosshair(center.x, center.y)
     }
   }, [drawCrosshair])
 
@@ -153,6 +160,7 @@ const CrosshairComponent = (
       const rect = canvas.getBoundingClientRect()
       const centerX = event.clientX - rect.left
       const centerY = event.clientY - rect.top
+      lastPointerRef.current = { x: centerX, y: centerY }
       drawCrosshair(centerX, centerY)
     }
   }