REPORT-57551 设计器显示，自适应布局下body背景设置以后，画布中没有实时显示背景

【问题原因】
Body Creator的swing Background遮挡了样式背景导致.
需要将swing背景的绘制放置到样式背景的下方, 避免遮挡样式背景

【改动思路】
同标题

designer-form/src/main/java/com/fr/design/designer/creator/XBorderStyleWidgetCreator.java

@@ -21,6 +21,8 @@ import com.fr.stable.StringUtils;
 import javax.swing.*;
 import javax.swing.border.Border;
 import javax.swing.border.LineBorder;
+import javax.swing.plaf.PanelUI;
+import javax.swing.plaf.basic.BasicPanelUI;
 import java.awt.*;
 import java.awt.geom.Rectangle2D;
 import java.awt.geom.RoundRectangle2D;
@@ -42,6 +44,7 @@ public class XBorderStyleWidgetCreator extends XWidgetCreator{
     public XBorderStyleWidgetCreator(Widget widget, Dimension initSize) {
         super(widget, initSize);
 
+		setUI(new NoBackgroundPaneUI());
         setOpaque(false);
         setBackupBound(null);
 
@@ -51,6 +54,13 @@ public class XBorderStyleWidgetCreator extends XWidgetCreator{
 		}
     }
 
+	@Override
+	public void setUI(PanelUI ui) {
+		if (ui instanceof NoBackgroundPaneUI) {
+			super.setUI(ui);
+		}
+	}
+
 	public Background getBackground4Painting() {
 		return this.background4Painting;
 	}
@@ -288,6 +298,11 @@ public class XBorderStyleWidgetCreator extends XWidgetCreator{
 
 	// 设计器预览界面中绘制组件背景效果
 	public void paintBackground(Graphics2D g2d) {
+		if (isOpaque()) {
+			g2d.setColor(getBackground());
+			g2d.fillRect(0, 0,  getWidth(), getHeight());
+		}
+
     	Background background4Painting = getBackground4Painting();
 		if (background4Painting != null) {
 			Composite oldComposite = g2d.getComposite();
@@ -311,12 +326,12 @@ public class XBorderStyleWidgetCreator extends XWidgetCreator{
 	}
 
 	public void paintForeground(Graphics2D g2d) {
-		super.paint(g2d);
+		super.paintComponent(g2d);
 		super.paintBorder(g2d);
 	}
 
 	@Override
-	public void paint(Graphics g) {
+	public void paintComponent(Graphics g) {
     	this.clipByRoundedBorder((Graphics2D) g);
 		this.paintBackground((Graphics2D) g);
 		this.paintBorderImage((Graphics2D) g);
@@ -378,4 +393,11 @@ public class XBorderStyleWidgetCreator extends XWidgetCreator{
 			g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
 		}
 	}
+
+	public static class NoBackgroundPaneUI extends BasicPanelUI {
+		@Override
+		public void update(Graphics g, JComponent c) {
+			paint(g, c);
+		}
+	}
 }