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package com.earth2me.essentials.textreader;
import com.earth2me.essentials.CommandSource;
import com.earth2me.essentials.I18n;
import static com.earth2me.essentials.I18n.tl;
import java.util.List;
import java.util.Locale;
import java.util.Map;
public class TextPager
{
private final transient IText text;
private final transient boolean onePage;
public TextPager(final IText text)
{
this(text, false);
}
public TextPager(final IText text, final boolean onePage)
{
this.text = text;
this.onePage = onePage;
}
public void showPage(final String pageStr, final String chapterPageStr, final String commandName, final CommandSource sender)
{
List<String> lines = text.getLines();
List<String> chapters = text.getChapters();
Map<String, Integer> bookmarks = text.getBookmarks();
//This code deals with the initial chapter. We use this to display the initial output or contents.
//We also use this code to display some extra information if we don't intend to use chapters
if (pageStr == null || pageStr.isEmpty() || pageStr.matches("[0-9]+"))
{
//If an info file starts with a chapter title, list the chapters
//If not display the text up until the first chapter.
if (!lines.isEmpty() && lines.get(0).startsWith("#"))
{
if (onePage)
{
return;
}
sender.sendMessage(tl("infoChapter"));
final StringBuilder sb = new StringBuilder();
boolean first = true;
for (String string : chapters)
{
if (!first)
{
sb.append(", ");
}
first = false;
sb.append(string);
}
sender.sendMessage(sb.toString());
return;
}
else
{
int page = 1;
try
{
page = Integer.parseInt(pageStr);
}
catch (NumberFormatException ex)
{
page = 1;
}
if (page < 1)
{
page = 1;
}
int start = onePage ? 0 : (page - 1) * 9;
int end;
for (end = 0; end < lines.size(); end++)
{
String line = lines.get(end);
if (line.startsWith("#"))
{
break;
}
}
int pages = end / 9 + (end % 9 > 0 ? 1 : 0);
if (!onePage && commandName != null)
{
StringBuilder content = new StringBuilder();
final String[] title = commandName.split(" ", 2);
if (title.length > 1)
{
content.append(I18n.capitalCase(title[0])).append(": ");
content.append(title[1]);
}
else
{
content.append(I18n.capitalCase(commandName));
}
sender.sendMessage(tl("infoPages", page, pages, content));
}
for (int i = start; i < end && i < start + (onePage ? 20 : 9); i++)
{
sender.sendMessage("§r" + lines.get(i));
}
if (!onePage && page < pages && commandName != null)
{
sender.sendMessage(tl("readNextPage", commandName, page + 1));
}
return;
}
}
//If we have a chapter, check to see if we have a page number
int chapterpage = 0;
if (chapterPageStr != null)
{
try
{
chapterpage = Integer.parseInt(chapterPageStr) - 1;
}
catch (NumberFormatException ex)
{
chapterpage = 0;
}
if (chapterpage < 0)
{
chapterpage = 0;
}
}
//This checks to see if we have the chapter in the index
if (!bookmarks.containsKey(pageStr.toLowerCase(Locale.ENGLISH)))
{
sender.sendMessage(tl("infoUnknownChapter"));
return;
}
//Since we have a valid chapter, count the number of lines in the chapter
final int chapterstart = bookmarks.get(pageStr.toLowerCase(Locale.ENGLISH)) + 1;
int chapterend;
for (chapterend = chapterstart; chapterend < lines.size(); chapterend++)
{
final String line = lines.get(chapterend);
if (line.length() > 0 && line.charAt(0) == '#')
{
break;
}
}
//Display the chapter from the starting position
final int start = chapterstart + (onePage ? 0 : chapterpage * 9);
final int page = chapterpage + 1;
final int pages = (chapterend - chapterstart) / 9 + ((chapterend - chapterstart) % 9 > 0 ? 1 : 0);
if (!onePage && commandName != null)
{
StringBuilder content = new StringBuilder();
content.append(I18n.capitalCase(commandName)).append(": ");
content.append(pageStr);
sender.sendMessage(tl("infoChapterPages", content, page, pages));
}
for (int i = start; i < chapterend && i < start + (onePage ? 20 : 9); i++)
{
sender.sendMessage("§r" + lines.get(i));
}
if (!onePage && page < pages && commandName != null)
{
sender.sendMessage(tl("readNextPage", commandName, pageStr + " " + (page + 1)));
}
}
}
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