/*
 * @(#)PackageIndexWriter.java	1.22 98/08/18
 *
 * Copyright 1997, 1998 by Sun Microsystems, Inc.,
 * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
 * All rights reserved.
 *
 * This software is the confidential and proprietary information
 * of Sun Microsystems, Inc. ("Confidential Information").  You
 * shall not disclose such Confidential Information and shall use
 * it only in accordance with the terms of the license agreement
 * you entered into with Sun.
 */

package com.sun.tools.doclets.standard;

import com.sun.tools.doclets.*;
import com.sun.javadoc.*;
import java.io.*;
import java.lang.*;
import java.util.*;

/**
 * Generate the package index page "overview-summary.html" for the right-hand
 * frame. A click on the package name on this page will update the same frame 
 * with the "pacakge-summary.html" file for the clicked package.
 *
 * @author Atul M Dambalkar 
 */
public class PackageIndexWriter extends AbstractPackageIndexWriter {

    /**
     * Root of the program structure. Used for "overview" documentation.
     */
    private RootDoc root;

    /**
     * Map representing the group of packages as specified on the command line.
     *
     * @see Group
     */
    private Map groupPackageMap;

    /**
     * List to store the order groups as specified on the command line.
     */
    private List groupList;

    /**
     * Construct the PackageIndexWriter. Also constructs the grouping 
     * information as provided on the command line by "-group" option. Stores 
     * the order of groups specified by the user.
     *
     * @see Group
     */
    public PackageIndexWriter(String filename, RootDoc root) 
                       throws IOException {
        super(filename);
        this.root = root;
        groupPackageMap = Group.groupPackages(packages);
        groupList = Group.getGroupList();
    }

    /**
     * Generate the package index page for the right-hand frame.
     *
     * @param root the root of the doc tree.
     */
    public static void generate(RootDoc root) throws DocletAbortException {
        PackageIndexWriter packgen;
        String filename = "overview-summary.html";
        try {
            packgen = new PackageIndexWriter(filename, root);
            packgen.generatePackageIndexFile();
            packgen.close();
        } catch (IOException exc) {
 Standard.configuration().standardmessage.error("doclet.exception_encountered", 
                                                 exc.toString(), filename);
            throw new DocletAbortException();
        }
    }
  
    /**
     * Print each package in separate rows in the index table. Generate link 
     * to each package.
     *
     * @param packagedoc Package to which link is to be generated.
     */
    protected void printIndexRow(PackageDoc packagedoc) {
        trBgcolorStyle("white", "TableRowColor");
        summaryRow(20); 
        bold();
        printPackageLink(packagedoc);
        boldEnd();
        summaryRowEnd(); 
        summaryRow(0); 
        printSummaryComment(packagedoc);
        summaryRowEnd(); 
        trEnd();
    }

    /**
     * Depending upon the grouping information and their titles, generate 
     * separate table indices for each package group.
     */
    protected void generateIndex() {
      	for (int i = 0; i < groupList.size(); i++) {
	    String groupname = (String)groupList.get(i);
	    List list = (List)groupPackageMap.get(groupname);
            if (list != null && list.size() > 0) {
                printIndexContents((PackageDoc[])list.
                                       toArray(new PackageDoc[list.size()]),
                                    groupname);
            }
        }
    }
 
    /**
     * Print the overview summary comment for this documentation. Print one line
     * summary at the top of the page and generate a link to the description,
     * which is generated at the end of this page.
     */
    protected void printOverviewHeader() {
        if (root.inlineTags().length > 0) {
            printSummaryComment(root);
            p();
            bold(getText("doclet.See"));
            br();
            printNbsps();
            printHyperLink("", "overview_description",
                           getText("doclet.Description"), true);
            p();
        }
    }

    /**
     * Print Html tags for the table for this package index.
     */
    protected void printIndexHeader(String text) {
        tableIndexSummary();
        tableHeaderStart("#CCCCFF");
        bold(text);
        tableHeaderEnd();
    } 

    /**
     * Print Html closing tags for the table for this package index.
     */
    protected void printIndexFooter() {
        tableEnd();
        p();
        space();
    }

    /**
     * Print the overview comment as provided in the file specified by the 
     * "-overview" option on the command line.
     */
    protected void printOverviewComment() {
        if (root.inlineTags().length > 0) {
            anchor("overview_description");
            p();
            printInlineComment(root); 
            p();
        }
    }

    /**    
     * Call {@link #printOverviewComment()} and then genrate the tag information
     * as provided in the file specified by the "-overview" option on the
     * command line.
     */
    protected void printOverview() throws IOException {
        printOverviewComment();
        generateTagInfo(root);
    }

    /**
     * Print the header for navigation bar. Also print the "-title" specified 
     * on command line, at the top of page.
     */ 
    protected void printNavigationBarHeader() {
        navLinks(true);
	hr();
        printConfigurationTitle();
    }
 
    /**
     * Print the footer fornavigation bar. Also print the "-bottom" specified 
     * on command line, at the top of page.
     */ 
    protected void printNavigationBarFooter() {
        hr();
        navLinks(false);
        printBottom();
    }
}