REPORT-5313 9.0[8.0]新建模板，单元格属性设置样式，切换到预定义样式再切换回来，设计器界面错乱

designer_base/src/com/fr/design/style/background/gradient/GradientBar.java

@@ -180,9 +180,13 @@ public class GradientBar extends JComponent implements UIObserver,ColorSelectabl
         }
         float[] dist = new float[list.size()];
         for (int i = 0; i < list.size(); i++) {
-            dist[i] = (float) ((list.get(i).getX() - 4) / (max - 4));
+            float value = (float) ((list.get(i).getX() - 4) / (max - 4));
+            if (0 <= value && value <= 1) {
+                dist[i] = value;
+            } else {
+                dist[i] = value < 0 ? 0 : 1;
+            }
         }
-        dist = correctDist(dist);
         LinearGradientPaint paint = new LinearGradientPaint(start, end, dist, c);
 
         g2.setPaint(paint);
@@ -194,17 +198,6 @@ public class GradientBar extends JComponent implements UIObserver,ColorSelectabl
         }
     }
 
-    /**
-     * 确保dist在0-1之间
-     */
-    public float[] correctDist(float[] dist){
-        if (dist.length == 2) {
-            dist[0] = dist[0] < 0 ? 0 : dist[0];
-            dist[1] = dist[1] > 1 ? 1 : dist[1];
-        }
-        return dist;
-    }
-
     /**
      * 状态改变
      */