Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.  Oracle designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Oracle in the LICENSE file that accompanied this code.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

  * questions.

  */

 package com.sun.tools.doclets.formats.html;

 import java.io.*;

 import java.util.*;

 import com.sun.javadoc.*;

 import com.sun.tools.doclets.formats.html.markup.*;

 import com.sun.tools.doclets.internal.toolkit.*;

 import com.sun.tools.doclets.internal.toolkit.util.*;

 /**

  * Abstract class to print the class hierarchy page for all the Classes. This

  * is sub-classed by {@link PackageTreeWriter} and {@link TreeWriter} to

  * generate the Package Tree and global Tree(for all the classes and packages)

  * pages.

  *

  *  <p><b>This is NOT part of any supported API.

  *  If you write code that depends on this, you do so at your own risk.

  *  This code and its internal interfaces are subject to change or

  *  deletion without notice.</b>

  *

  * @author Atul M Dambalkar

  */

 public abstract class AbstractTreeWriter extends HtmlDocletWriter {

     /**

      * The class and interface tree built by using {@link ClassTree}

      */

     protected final ClassTree classtree;

     private static final String LI_CIRCLE  = "circle";

     /**

      * Constructor initializes classtree variable. This constructor will be used

      * while generating global tree file "overview-tree.html".

      *

      * @param configuration  The current configuration

      * @param filename   File to be generated.

      * @param classtree  Tree built by {@link ClassTree}.

      * @throws IOException

      * @throws DocletAbortException

      */

     protected AbstractTreeWriter(ConfigurationImpl configuration,

                                  DocPath filename, ClassTree classtree)

                                  throws IOException {

         super(configuration, filename);

         this.classtree = classtree;

     }

     /**

      * Add each level of the class tree. For each sub-class or

      * sub-interface indents the next level information.

      * Recurses itself to add subclasses info.

      *

      * @param parent the superclass or superinterface of the list

      * @param list list of the sub-classes at this level

      * @param isEnum true if we are generating a tree for enums

      * @param contentTree the content tree to which the level information will be added

      */

     protected void addLevelInfo(ClassDoc parent, List<ClassDoc> list,

             boolean isEnum, Content contentTree) {

         int size = list.size();

         if (size > 0) {

             Content ul = new HtmlTree(HtmlTag.UL);

             for (int i = 0; i < size; i++) {

                 ClassDoc local = list.get(i);

                 HtmlTree li = new HtmlTree(HtmlTag.LI);

                 li.addAttr(HtmlAttr.TYPE, LI_CIRCLE);

                 addPartialInfo(local, li);

                 addExtendsImplements(parent, local, li);

                 addLevelInfo(local, classtree.subs(local, isEnum),

                         isEnum, li);   // Recurse

                 ul.addContent(li);

             }

             contentTree.addContent(ul);

         }

     }

     /**

      * Add the heading for the tree depending upon tree type if it's a

      * Class Tree or Interface tree.

      *

      * @param list List of classes which are at the most base level, all the

      * other classes in this run will derive from these classes

      * @param heading heading for the tree

      * @param div the content tree to which the tree will be added

      */

     protected void addTree(List<ClassDoc> list, String heading, Content div) {

         if (list.size() > 0) {

             ClassDoc firstClassDoc = list.get(0);

             Content headingContent = getResource(heading);

             div.addContent(HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING, true,

                     headingContent));

             addLevelInfo(!firstClassDoc.isInterface()? firstClassDoc : null,

                     list, list == classtree.baseEnums(), div);

         }

     }

     /**

      * Add information regarding the classes which this class extends or

      * implements.

      *

      * @param parent the parent class of the class being documented

      * @param cd the classdoc under consideration

      * @param contentTree the content tree to which the information will be added

      */

     protected void addExtendsImplements(ClassDoc parent, ClassDoc cd,

             Content contentTree) {

         ClassDoc[] interfaces = cd.interfaces();

         if (interfaces.length > (cd.isInterface()? 1 : 0)) {

             Arrays.sort(interfaces);

             int counter = 0;

             for (int i = 0; i < interfaces.length; i++) {

                 if (parent != interfaces[i]) {

                     if (! (interfaces[i].isPublic() ||

                             Util.isLinkable(interfaces[i], configuration))) {

                         continue;

                     }

                     if (counter == 0) {

                         if (cd.isInterface()) {

                             contentTree.addContent(" (");

                             contentTree.addContent(getResource("doclet.also"));

                             contentTree.addContent(" extends ");

                         } else {

                             contentTree.addContent(" (implements ");

                         }

                     } else {

                         contentTree.addContent(", ");

                     }

                     addPreQualifiedClassLink(LinkInfoImpl.Kind.TREE,

                             interfaces[i], contentTree);

                     counter++;

                 }

             }

             if (counter > 0) {

                 contentTree.addContent(")");

             }

         }

     }

     /**

      * Add information about the class kind, if it's a "class" or "interface".

      *

      * @param cd the class being documented

      * @param contentTree the content tree to which the information will be added

      */

     protected void addPartialInfo(ClassDoc cd, Content contentTree) {

         addPreQualifiedStrongClassLink(LinkInfoImpl.Kind.TREE, cd, contentTree);

     }

     /**

      * Get the tree label for the navigation bar.

      *

      * @return a content tree for the tree label

      */

     protected Content getNavLinkTree() {

         Content li = HtmlTree.LI(HtmlStyle.navBarCell1Rev, treeLabel);

         return li;

     }

 }