REPORT-875 修改显示对话框的方式，去掉拷贝过来的重复代码

designer_base/src/com/fr/design/actions/file/PreferencePane.java

@@ -627,46 +627,11 @@ public class PreferencePane extends BasicPane {
         return l;
     }
 
-    /**
-     * 显示窗口
-     *
-     * @param window 窗口
-     * @param l      对话框监听器
-     * @return 对话框
-     */
     @Override
-    public BasicDialog showWindow(Window window, DialogActionListener l) {
-        BasicDialog dg;
-        if (window instanceof Frame) {
-            dg = new DIALOG((Frame) window);
-        } else {
-            dg = new DIALOG((Dialog) window);
-        }
-
-        if (l != null) {
-            dg.addDialogActionListener(l);
-        }
-        return showWindow(dg);
-    }
-
-    private class DIALOG extends BasicDialog {
-        public DIALOG(Frame parent) {
-            super(parent, PreferencePane.this);
-            this.setTitle(PreferencePane.this.title4PopupWindow());
-        }
-
-        public DIALOG(Dialog parent) {
-            super(parent, PreferencePane.this);
-            this.setTitle(PreferencePane.this.title4PopupWindow());
-        }
-
-        /**
-         * 确定操作
-         *
-         */
+    public BasicDialog showWindow(Window window) {
+        return showWindow(window, new DialogActionAdapter() {
             @Override
-        public void doOK() {
-            super.doOK();
+            public void doOk() {
                 if (languageComboBox.getSelectedIndex() != designerEnvLanguageIndex) {
                     int rv = JOptionPane.showOptionDialog(
                             null,
@@ -683,13 +648,6 @@ public class PreferencePane extends BasicPane {
                     }
                 }
             }
-
-        /**
-         * Check valid.
-         */
-        public void checkValid() throws Exception {
-            PreferencePane.this.checkValid();
-        }
-
+        });
     }
 }