old UML (for Java) no more available

platform/lang-api/src/com/intellij/lang/folding/FoldingDescriptor.java

@@ -32,6 +32,7 @@ import java.util.Set;
  * Defines a single folding region in the code.
  *
  * @author max
+ * @author Konstantin Bulenkov
  * @see FoldingBuilder
  */                                                    
 public class FoldingDescriptor {
@@ -41,6 +42,7 @@ public class FoldingDescriptor {
   private final TextRange myRange;
   @Nullable private final FoldingGroup myGroup;
   private Set<Object> myDependencies;
+  private String myText;
 
   /**
    * Creates a folding region related to the specified AST node and covering the specified
@@ -107,19 +109,38 @@ public class FoldingDescriptor {
 
   @Nullable
   public String getPlaceholderText() {
-    final PsiElement psiElement = myElement.getPsi();
-    if (psiElement == null) return null;
-
-    final Language lang = psiElement.getLanguage();
-    final FoldingBuilder foldingBuilder = LanguageFolding.INSTANCE.forLanguage(lang);
-    if (foldingBuilder != null) {
-      return foldingBuilder.getPlaceholderText(myElement);
+    if (myText == null) {
+      final FoldingBuilder builder = getFoldingBuilder();
+      return builder == null ? null : builder.getPlaceholderText(myElement);
+    } else {
+      return myText;
     }
-    return null;
+  }
+
+  @Nullable
+  protected FoldingBuilder getFoldingBuilder() {
+    final PsiElement psi = myElement.getPsi();
+    if (psi == null) return null;
+
+    final Language lang = psi.getLanguage();
+    return LanguageFolding.INSTANCE.forLanguage(lang);
+  }
+
+  public boolean isCollapsedByDefault() {
+    final FoldingBuilder builder = getFoldingBuilder();
+    return builder == null ? false : builder.isCollapsedByDefault(myElement);
   }
   
   @NotNull
   public Set<Object> getDependencies() {
     return myDependencies;
   }
+
+  public String getText() {
+    return myText;
+  }
+
+  public void setText(String text) {
+    myText = text;
+  }
 }