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package com.earth2me.essentials.textreader;
import static com.earth2me.essentials.I18n._;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
public class BookPager
{
private final transient IText text;
public BookPager(final IText text)
{
this.text = text;
}
public List<String> getPages(final String pageStr) throws Exception
{
List<String> lines = text.getLines();
List<String> chapters = text.getChapters();
List<String> pageLines = new ArrayList<String>();
Map<String, Integer> bookmarks = text.getBookmarks();
//This checks to see if we have the chapter in the index
if (!bookmarks.containsKey(pageStr.toLowerCase(Locale.ENGLISH)))
{
throw new Exception(_("infoUnknownChapter"));
}
//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;
}
}
for (int lineNo = chapterstart; lineNo < chapterend; lineNo += 1)
{
String pageLine = "\u00a70" + lines.get(lineNo);
String tempLine;
final double max = 18;
final int lineLength = pageLine.length();
double length = 0;
int pointer = 0;
int start = 0;
double weight = 1;
while (pointer < lineLength)
{
if (length >= max)
{
tempLine = pageLine.substring(start, pointer);
pageLines.add(tempLine);
start = pointer;
length = 0;
}
Character letter = pageLine.charAt(pointer);
if (letter == '\u00a7')
{
Character nextLetter = pageLine.charAt(pointer + 1);
if (nextLetter == 'l' || nextLetter == 'L')
{
weight = 1.25;
}
else
{
weight = 1;
}
pointer++;
}
else if (letter == ' ')
{
length += (0.7 * weight);
}
else
{
length += weight;
}
pointer++;
}
if (length > 0)
{
tempLine = pageLine.substring(start, lineLength);
pageLines.add(tempLine);
}
}
List<String> pages = new ArrayList<String>();
for (int count = 0; count < pageLines.size(); count += 12)
{
StringBuilder newPage = new StringBuilder();
for (int i = count; i < count + 12 && i < pageLines.size(); i++)
{
newPage.append("\n").append(pageLines.get(i));
}
pages.add(newPage.toString());
}
return pages;
}
}
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