REPORT-58520 FR11-二轮回归-模板-纸张背景-背景设置显示不全

【问题原因】
左侧背景预览面板宽度应自适应

【改动思路】
同上

designer-realize/src/main/java/com/fr/design/report/NewReportBackgroundPane.java

@@ -140,11 +140,11 @@ public class NewReportBackgroundPane extends BasicPane {
                 }
             });
 
-            JPanel contentContainer = FRGUIPaneFactory.createBorderLayout_S_Pane();
+            JPanel contentContainer = new JPanel(new BorderLayout(IntervalConstants.INTERVAL_L6, 0));
             contentContainer.setBorder(BorderFactory.createEmptyBorder());
             contentContainer.setBorder(BorderFactory.createEmptyBorder());
             contentContainer.setPreferredSize(new Dimension(600, 540));
-            contentContainer.add(createLeftPane(), BorderLayout.WEST);
+            contentContainer.add(createLeftPane(), BorderLayout.CENTER);
             contentContainer.add(createRightPane(), BorderLayout.EAST);
 
             addAttributeChangeListener(new AttributeChangeListener() {