REPORT-55211【组件背景分离】组件复用-图表块取消勾选标题可见，设置的主体背景（颜色/渐变色/图片），在设计界面里会遮盖住图表，可见图。web效果正常

子功能： 设计器组件样式主体背景预览
【问题原因】
图表重写了paint方法，导致super.paint中的背景绘制在了图表图片上方
【改动思路】
将XBorderStyleWidgetCreator中的paint方法分成若干部分：
clipByRoundedBorder: 圆角裁剪
paintBackground: 绘制背景
paintForeground: 绘制前景内容（在背景上方的组件内容)

图表可通过重写paintForeground方法实现之前的逻辑，同时保证内容不被背景遮盖
【review建议】

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

@@ -18,8 +18,7 @@ import com.fr.stable.bridge.StableFactory;
 
 import javax.swing.JComponent;
 import javax.swing.JPanel;
-import java.awt.Dimension;
-import java.awt.Graphics;
+import java.awt.*;
 import java.awt.event.MouseEvent;
 import java.awt.image.BufferedImage;
 
@@ -102,7 +101,8 @@ public class XAutoChartCreator extends XChartEditor {
     }
 
 
-    public void paint(Graphics g) {
+    @Override
+    public void paintForeground(Graphics2D g) {
         BufferedImage bufferedImage = IOUtils.readImage("com/fr/design/form/images/auto_chart_preview.png");
         GraphHelper.paintImage(
                 g, this.getWidth(), this.getHeight(), bufferedImage,
@@ -110,7 +110,7 @@ public class XAutoChartCreator extends XChartEditor {
                 0,
                 0, -1, -1
         );
-        super.paint(g);
+        super.paintForeground(g);
     }
 
     private void initChart(BaseChartCollection chartCollection) {

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

@@ -222,24 +222,23 @@ public class XBorderStyleWidgetCreator extends XWidgetCreator{
 	}
 
 	// 设计器预览界面中绘制组件背景效果
-	private void paintBackground(Graphics2D g2d) {
+	public void paintBackground(Graphics2D g2d) {
     	Background background4Painting = getBackground4Painting();
 		if (background4Painting != null) {
 			background4Painting.paint(g2d, new Rectangle2D.Double(0, 0, getWidth(), getHeight()));
 		}
 	}
 
-	@Override
-	protected void paintComponent(Graphics g) {
-		this.paintBackground((Graphics2D) g);
-		super.paintComponent(g);
+	public void paintForeground(Graphics2D g2d) {
+		super.paint(g2d);
+		super.paintBorder(g2d);
 	}
 
 	@Override
 	public void paint(Graphics g) {
     	this.clipByRoundedBorder((Graphics2D) g);
-		super.paint(g);
-    	paintBorder(g);
+		this.paintBackground((Graphics2D) g);
+		this.paintForeground((Graphics2D) g);
 	}
 
     @Override

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

@@ -29,12 +29,8 @@ import javax.swing.BorderFactory;
 import javax.swing.JComponent;
 import javax.swing.JPanel;
 import javax.swing.SwingUtilities;
+import java.awt.*;
 import java.beans.IntrospectionException;
-import java.awt.Color;
-import java.awt.Cursor;
-import java.awt.Dimension;
-import java.awt.Graphics;
-import java.awt.Rectangle;
 import java.awt.event.MouseEvent;
 
 /**
@@ -228,7 +224,8 @@ public class XChartEditor extends XBorderStyleWidgetCreator {
     /**
      * 渲染Painter
      */
-    public void paint(Graphics g) {
+    @Override
+    public void paintForeground(Graphics2D g) {
         Dimension size = getSize();
         PaddingMargin margin = toData().getMargin();
         designerEditor.paintEditor(g, size, margin);
@@ -237,7 +234,7 @@ public class XChartEditor extends XBorderStyleWidgetCreator {
             int verticalMargin = margin != null ? margin.getTop() + margin.getBottom() : 0;
             coverPanel.setSize(size.width - horizonMargin, size.height - verticalMargin);
         }
-        super.paint(g);
+        super.paintForeground(g);
         if (isEditing) {
             g.setColor(INNER_BORDER_COLOR);
             GraphHelper.draw(g, new Rectangle(0, 0, getWidth(), getHeight()), Constants.LINE_MEDIUM);