From c157fbcb58648322951430b2f30bcdf028a76330 Mon Sep 17 00:00:00 2001
From: Starryi <starryi@foxmail.com>
Date: Fri, 8 Oct 2021 16:18:26 +0800
Subject: [PATCH] =?UTF-8?q?REPORT-60171=20=E3=80=90=E4=B8=BB=E9=A2=98?=
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【问题原因】
透明底色图片的透明度正常，不过单元格样式预览界面在
windows上存在重影问题，需要修复下。

【改动思路】
绘制单元格样式预览内容前清空画布
---
 .../src/main/java/com/fr/design/cell/CellStylePreviewPane.java   | 1 +
 1 file changed, 1 insertion(+)

diff --git a/designer-base/src/main/java/com/fr/design/cell/CellStylePreviewPane.java b/designer-base/src/main/java/com/fr/design/cell/CellStylePreviewPane.java
index c317d0e5a..355dca62d 100644
--- a/designer-base/src/main/java/com/fr/design/cell/CellStylePreviewPane.java
+++ b/designer-base/src/main/java/com/fr/design/cell/CellStylePreviewPane.java
@@ -43,6 +43,7 @@ public class CellStylePreviewPane extends JPanel {
     @Override
     public void paint(Graphics g) {
         Graphics2D g2d = (Graphics2D) g;
+        g.clearRect(0, 0, getWidth(), getHeight());
 
         paintTransparentBackground(g2d, style);