dmolony-DiskBrowser/src/com/bytezone/diskbrowser/infocom/Abbreviations.java

package com.bytezone.diskbrowser.infocom;

import java.util.ArrayList;
import java.util.List;

import com.bytezone.diskbrowser.applefile.AbstractFile;

class Abbreviations extends AbstractFile
{
	List<ZString> list;
	Header header;
	int dataPtr;
	int dataSize;
	int tablePtr;
	int tableSize;

	public Abbreviations (Header header)
	{
		super ("Abbreviations", header.buffer);
		this.header = header;

		dataPtr = header.getWord (header.abbreviationsTable) * 2;
		dataSize = header.abbreviationsTable - dataPtr;
		tablePtr = header.abbreviationsTable;
		tableSize = header.objectTable - header.abbreviationsTable;

		// prepare hex dump
		hexBlocks.add (new HexBlock (dataPtr, dataSize, "Abbreviations data:"));
		hexBlocks.add (new HexBlock (tablePtr, tableSize, "Abbreviations table:"));
	}

	private void populate ()
	{
		System.out.println ("populating abbreviations");
		list = new ArrayList<ZString> ();

		for (int i = header.abbreviationsTable; i < header.objectTable; i += 2)
		{
			int j = header.getWord (i) * 2;
			ZString zs = new ZString (buffer, j, header);
			list.add (zs);
		}
	}

	public String getAbbreviation (int abbreviationNumber)
	{
		if (list == null)
			populate ();
		return list.get (abbreviationNumber).value;
	}

	@Override
	public String getText ()
	{
		if (list == null)
			populate ();

		StringBuilder text = new StringBuilder ();

//		text.append (String.format ("Data address....%04X  %d%n", dataPtr, dataPtr));
//		text.append (String.format ("Data size.......%04X  %d%n", dataSize, dataSize));
//		text.append (String.format ("Table address...%04X  %d%n", tablePtr, tablePtr));
//		text.append (String.format ("Table size......%04X  %d  (%d words)%n%n", tableSize, tableSize,
//					(tableSize / 2)));

		int count = 0;
		for (ZString word : list)
			text.append (String.format ("%3d  %s%n", count++, word.value));
		if (list.size () > 0)
			text.deleteCharAt (text.length () - 1);

		return text.toString ();
	}
}