REPORT-60161 【组件背景分离】设置九点图的线在边界上后，其他操作回来发现恢复成默认井字型

【问题原因】
点九图边界线值为0也是有效值

【改动思路

designer-form/src/main/java/com/fr/design/gui/xpane/BorderLineAndImagePane.java

@@ -298,15 +298,16 @@ public class BorderLineAndImagePane extends JPanel implements UIObserver {
         Background borderImage = style.getBorderImage();
         if (borderImage instanceof ImageBackground) {
             // 图片类型边框
-            Image image = ((ImageBackground) borderImage).getImage();
-            int[] ninePoint = ((ImageBackground) borderImage).getNinePoint();
+            ImageBackground imageBackground = (ImageBackground) borderImage;
+            Image image = imageBackground.getImage();
 
             if (image != null) {
                 this.borderLineCombo.selectBorderImage();
                 this.imagePreviewPane.setImageWithSuffix(((ImageBackground) borderImage).getImageWithSuffix());
                 this.tweakNinePointButton.setEnabled(true);
                 this.borderImageOpacityPane.populateBean(style.getBorderImageOpacity());
-                if (ninePoint != null && ninePoint.length == 4 && ninePoint[0] > 0 && ninePoint[1] > 0 && ninePoint[2] > 0 && ninePoint[3] > 0) {
+                int[] ninePoint = ((ImageBackground) borderImage).getNinePoint();
+                if (ninePoint != null && ninePoint.length == 4 && ninePoint[0] >= 0 && ninePoint[1] >= 0 && ninePoint[2] >= 0 && ninePoint[3] >= 0) {
                     this.ninePoint = Arrays.copyOf(ninePoint, 4);
                 } else {
                     this.ninePoint = new int[4];