2010-08-09 06:40:08 +00:00
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/*
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* AppleCommander - An Apple ][ image utility.
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* Copyright (C) 2002, 2008 by Robert Greene
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* robgreene at users.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package com.webcodepro.applecommander.storage.os.nakedos;
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import java.util.ArrayList;
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import java.util.List;
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import com.webcodepro.applecommander.storage.DirectoryEntry;
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import com.webcodepro.applecommander.storage.DiskFullException;
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import com.webcodepro.applecommander.storage.FileEntry;
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import com.webcodepro.applecommander.storage.FormattedDisk;
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import com.webcodepro.applecommander.storage.StorageBundle;
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import com.webcodepro.applecommander.storage.physical.ImageOrder;
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import com.webcodepro.applecommander.util.AppleUtil;
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import com.webcodepro.applecommander.util.TextBundle;
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/**
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* Manages a disk that is in NakedOS format.
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* <p>
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* Date created: August 5, 2010 10:23:23 AM
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* @author David Schmidt
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*/
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public class NakedosFormatDisk extends FormattedDisk {
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private TextBundle textBundle = StorageBundle.getInstance();
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/**
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* Indicates the index of the track in the location array.
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*/
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public static final int TRACK_LOCATION_INDEX = 0;
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/**
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* Indicates the index of the sector in the location array.
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*/
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public static final int SECTOR_LOCATION_INDEX = 1;
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/**
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* The catalog track.
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*/
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public static final int CATALOG_TRACK = 0;
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/**
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* The VTOC sector.
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*/
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public static final int VTOC_SECTOR = 3; // Logically 9, 10, 11; physically, 3, 10, 2
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/**
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* The standard track/sector pairs in a track/sector list.
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*/
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public static final int TRACK_SECTOR_PAIRS = 122;
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/**
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* The list of filetypes available.
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*/
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private static final String[] filetypes = {
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"B" //$NON-NLS-1$
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};
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/**
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* The number of sectors used on the disk
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*/
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private int usedSectors = 0;
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private static final int[] sectorTranslate = {0, 7, 14, 6, 13, 5, 12, 4, 11, 3, 10, 2, 9, 1, 8, 15};
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/**
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* Use this inner interface for managing the disk usage data.
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* This offloads format-specific implementation to the implementing class.
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*/
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private class WPDiskUsage implements DiskUsage {
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private int[] location = null;
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public boolean hasNext() {
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return location == null
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|| (location[TRACK_LOCATION_INDEX] < getTracks()
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&& location[SECTOR_LOCATION_INDEX] < getSectors());
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}
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public void next() {
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if (location == null) {
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location = new int[2];
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} else {
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location[SECTOR_LOCATION_INDEX]++;
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if (location[SECTOR_LOCATION_INDEX] >= getSectors()) {
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location[SECTOR_LOCATION_INDEX] = 0;
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location[TRACK_LOCATION_INDEX]++;
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}
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}
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}
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/**
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* Get the free setting for the bitmap at the current location.
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* I don't think there is a map stored on disk, however.
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*/
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public boolean isFree() {
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if (location == null || location.length != 2) {
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throw new IllegalArgumentException(StorageBundle.getInstance()
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.get("DosFormatDisk.InvalidDimensionError")); //$NON-NLS-1$
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}
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return false;
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}
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public boolean isUsed() {
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return !isFree();
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}
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}
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/**)
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* Constructor for NakedosFormatDisk.
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*/
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public NakedosFormatDisk(String filename, ImageOrder imageOrder) {
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super(filename, imageOrder);
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}
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/**
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* Create a NakedosFormatDisk. All DOS disk images are expected to
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* be 140K in size.
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*/
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public static NakedosFormatDisk[] create(String filename, ImageOrder imageOrder) {
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NakedosFormatDisk disk = new NakedosFormatDisk(filename, imageOrder);
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disk.format();
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return new NakedosFormatDisk[] { disk };
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}
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/**
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* Identify the operating system format of this disk as Nakedos.
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* @see com.webcodepro.applecommander.storage.FormattedDisk#getFormat()
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*/
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public String getFormat() {
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return textBundle.get("NakedOS"); //$NON-NLS-1$
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}
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/**
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* Retrieve a list of files.
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* @see com.webcodepro.applecommander.storage.FormattedDisk#getFiles()
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*/
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public List getFiles() {
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ArrayList list = new ArrayList();
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int totalUsed = 0;
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int i;
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int[] fileSizes = new int[256];
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byte[] catalogSector1 = readSector(CATALOG_TRACK, 3);
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byte[] catalogSector2 = readSector(CATALOG_TRACK, 10);
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byte[] catalogSector3 = readSector(CATALOG_TRACK, 2);
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for (i = 0;i<48;i++) {
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if ((catalogSector1[i+0xd0] != -2) && (catalogSector1[i+0xd0] != -1))
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fileSizes[AppleUtil.getUnsignedByte(catalogSector1[i+0xd0])]+=1;
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if (catalogSector1[i+0xd0] != -1)
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totalUsed++;
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}
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for (i = 0;i<256;i++) {
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if ((catalogSector2[i] != -2) && (catalogSector2[i] != -1))
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fileSizes[AppleUtil.getUnsignedByte(catalogSector2[i])]+=1;
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if ((catalogSector3[i] != -2) && (catalogSector3[i] != -1))
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fileSizes[AppleUtil.getUnsignedByte(catalogSector3[i])]+=1;
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if (catalogSector2[i] != -1)
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totalUsed++;
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if (catalogSector3[i] != -1)
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totalUsed++;
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}
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for (i = 0;i<256;i++) {
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if (fileSizes[i] != 0) {
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list.add(new NakedosFileEntry(this, i,fileSizes[i]));
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}
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}
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usedSectors = totalUsed;
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return list;
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}
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/**
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* Create a FileEntry.
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*/
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public FileEntry createFile() throws DiskFullException {
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return new NakedosFileEntry(this, -2, 0);
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}
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/**
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* Identify if additional directories can be created. This
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* may indicate that directories are not available to this
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* operating system or simply that the disk image is "locked"
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* to writing.
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*/
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public boolean canCreateDirectories() {
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return false;
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}
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/**
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* Indicates if this disk image can create a file.
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* If not, the reason may be as simple as it has not been implemented
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* to something specific about the disk.
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*/
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public boolean canCreateFile() {
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return false;
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}
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/**
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* Compute the amount of freespace available on the disk.
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* This algorithm completely ignores tracks and sectors by
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* running through the entire bitmap stored on the VTOC.
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* @see com.webcodepro.applecommander.storage.FormattedDisk#getFreeSpace()
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*/
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public int getFreeSpace() {
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return getFreeSectors() * SECTOR_SIZE;
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}
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/**
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* Compute the number of free sectors available on the disk.
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*/
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public int getFreeSectors() {
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return getTotalSectors() - getUsedSectors();
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}
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/**
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* Return the amount of used space in bytes.
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* @see com.webcodepro.applecommander.storage.FormattedDisk#getUsedSpace()
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*/
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public int getUsedSpace() {
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return usedSectors * 256;
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}
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/**
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* Compute the number of used sectors on the disk.
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*/
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public int getUsedSectors() {
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return usedSectors;
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}
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/**
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* Compute the total number of sectors available on the disk.
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*/
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public int getTotalSectors() {
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int tracks = getTracks();
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int sectors = getSectors();
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return tracks * sectors;
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}
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/**
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* Return the disk name.
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* @see com.webcodepro.applecommander.storage.FormattedDisk#getDiskName()
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*/
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public String getDiskName() {
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// Pull the disk name out...
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return "";
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}
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/**
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* Return the VTOC (Volume Table Of Contents).
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*/
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protected byte[] readVtoc() {
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return readSector(CATALOG_TRACK, VTOC_SECTOR);
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}
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/**
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* Save the VTOC (Volume Table Of Contents) to disk.
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*/
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protected void writeVtoc(byte[] vtoc) {
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writeSector(CATALOG_TRACK, VTOC_SECTOR, vtoc);
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}
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/**
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* Get the disk usage iterator.
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*/
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public DiskUsage getDiskUsage() {
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return new WPDiskUsage();
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}
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/**
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* Get the number of tracks on this disk.
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*/
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public int getTracks() {
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return 35;
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}
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/**
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* Get the number of sectors on this disk.
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*/
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public int getSectors() {
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return 16;
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}
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/**
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* Get suggested dimensions for display of bitmap. For DOS 3.3, that information
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* is stored in the VTOC, and that information is fairly important.
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* @see com.webcodepro.applecommander.storage.FormattedDisk#getBitmapDimensions()
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*/
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public int[] getBitmapDimensions() {
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int tracks = getTracks();
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int sectors = getSectors();
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return new int[] { tracks, sectors };
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}
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/**
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* Get the length of the bitmap.
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*/
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public int getBitmapLength() {
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return getTotalSectors();
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}
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/**
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* Get the labels to use in the bitmap.
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*/
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public String[] getBitmapLabels() {
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return new String[] { textBundle.get("DosFormatDisk.Track"), textBundle.get("DosFormatDisk.Sector") }; //$NON-NLS-1$ //$NON-NLS-2$
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}
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/**
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* Get WP-specific disk information.
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*/
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public List getDiskInformation() {
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getFiles();
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List list = super.getDiskInformation();
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return list;
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}
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/**
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* Get the standard file column header information.
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* This default implementation is intended only for standard mode.
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*/
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public List getFileColumnHeaders(int displayMode) {
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List list = new ArrayList();
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switch (displayMode) {
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case FILE_DISPLAY_NATIVE:
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list.add(new FileColumnHeader(" ", 1, FileColumnHeader.ALIGN_CENTER)); //$NON-NLS-1$
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list.add(new FileColumnHeader(textBundle.get("DosFormatDisk.Type"), 1, FileColumnHeader.ALIGN_CENTER)); //$NON-NLS-1$
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list.add(new FileColumnHeader(textBundle.get("DosFormatDisk.SizeInSectors"), 3, FileColumnHeader.ALIGN_RIGHT)); //$NON-NLS-1$
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list.add(new FileColumnHeader(textBundle.get("Name"), 30, //$NON-NLS-1$
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FileColumnHeader.ALIGN_LEFT));
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break;
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case FILE_DISPLAY_DETAIL:
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list.add(new FileColumnHeader(" ", 1, FileColumnHeader.ALIGN_CENTER)); //$NON-NLS-1$
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list.add(new FileColumnHeader(textBundle.get("DosFormatDisk.Type"), 1, FileColumnHeader.ALIGN_CENTER)); //$NON-NLS-1$
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list.add(new FileColumnHeader(textBundle.get("Name"), 30, //$NON-NLS-1$
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FileColumnHeader.ALIGN_LEFT));
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list.add(new FileColumnHeader(textBundle.get("SizeInBytes"), 6, //$NON-NLS-1$
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FileColumnHeader.ALIGN_RIGHT));
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list.add(new FileColumnHeader(textBundle.get("DosFormatDisk.SizeInSectors"), 3, FileColumnHeader.ALIGN_RIGHT)); //$NON-NLS-1$
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list.add(new FileColumnHeader(textBundle.get("DeletedQ"), 7, //$NON-NLS-1$
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FileColumnHeader.ALIGN_CENTER));
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list.add(new FileColumnHeader(textBundle.get("DosFormatDisk.TrackAndSectorList"), 7, FileColumnHeader.ALIGN_CENTER)); //$NON-NLS-1$
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break;
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default: // FILE_DISPLAY_STANDARD
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list.addAll(super.getFileColumnHeaders(displayMode));
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break;
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}
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return list;
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}
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/**
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* Indicates if this disk format supports "deleted" files.
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*/
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public boolean supportsDeletedFiles() {
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return true;
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}
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/**
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* Indicates if this disk image can read data from a file.
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*/
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public boolean canReadFileData() {
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return true;
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}
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/**
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* Indicates if this disk image can write data to a file.
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*/
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public boolean canWriteFileData() {
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return false;
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}
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/**
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* Identify if this disk format as not capable of having directories.
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* @see com.webcodepro.applecommander.storage.FormattedDisk#canHaveDirectories()
|
|
|
|
*/
|
|
|
|
public boolean canHaveDirectories() {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Indicates if this disk image can delete a file.
|
|
|
|
*/
|
|
|
|
public boolean canDeleteFile() {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Get the data associated with the specified FileEntry.
|
|
|
|
*/
|
|
|
|
public byte[] getFileData(FileEntry fileEntry) {
|
|
|
|
if ( !(fileEntry instanceof NakedosFileEntry)) {
|
|
|
|
throw new IllegalArgumentException(textBundle.get("DosFormatDisk.InvalidFileEntryError")); //$NON-NLS-1$
|
|
|
|
}
|
|
|
|
int offset = 0;
|
|
|
|
byte[] catalogSector1 = readSector(CATALOG_TRACK, 3);
|
|
|
|
byte[] catalogSector2 = readSector(CATALOG_TRACK, 10);
|
|
|
|
byte[] catalogSector3 = readSector(CATALOG_TRACK, 2);
|
|
|
|
NakedosFileEntry entry = (NakedosFileEntry) fileEntry;
|
|
|
|
byte[] fileData = new byte[entry.getSize()];
|
|
|
|
for (int i = 0;i<48;i++) {
|
|
|
|
if (AppleUtil.getUnsignedByte(catalogSector1[i+0xd0]) == entry.getFileNumber()) {
|
|
|
|
byte[] fileData1 = readSector(i/16,sectorTranslate[i%16]);
|
|
|
|
System.arraycopy(fileData1, 0, fileData, offset, fileData1.length);
|
|
|
|
offset+=fileData1.length;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
for (int i = 0;i<256;i++) {
|
|
|
|
if (AppleUtil.getUnsignedByte(catalogSector2[i]) == entry.getFileNumber()) {
|
|
|
|
byte[] fileData1 = readSector((i+48)/16,sectorTranslate[(i+48)%16]);
|
|
|
|
System.arraycopy(fileData1, 0, fileData, offset, fileData1.length);
|
|
|
|
offset+=fileData1.length;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
for (int i = 0;i<256;i++) {
|
|
|
|
if (AppleUtil.getUnsignedByte(catalogSector3[i]) == entry.getFileNumber()) {
|
|
|
|
byte[] fileData1 = readSector((i+48+256)/16,sectorTranslate[(i+48+256)%16]);
|
|
|
|
System.arraycopy(fileData1, 0, fileData, offset, fileData1.length);
|
|
|
|
offset+=fileData1.length;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return fileData;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Writes the raw bytes into the file. This bypasses any special formatting
|
|
|
|
* of the data (such as prepending the data with a length and/or an address).
|
|
|
|
* Typically, the FileEntry.setFileData method should be used.
|
|
|
|
*/
|
|
|
|
public void setFileData(FileEntry fileEntry, byte[] fileData) throws DiskFullException {
|
|
|
|
setFileData((NakedosFileEntry)fileEntry, fileData);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Set the data associated with the specified NakedosFileEntry into sectors
|
|
|
|
* on the disk.
|
|
|
|
*/
|
|
|
|
protected void setFileData(NakedosFileEntry fileEntry, byte[] data) throws DiskFullException {
|
|
|
|
// compute free space and see if the data will fit!
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Format the disk as DOS 3.3.
|
|
|
|
* @see com.webcodepro.applecommander.storage.FormattedDisk#format()
|
|
|
|
*/
|
|
|
|
public void format() {
|
|
|
|
getImageOrder().format();
|
|
|
|
format();
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Format the disk as NakedOS.
|
|
|
|
*/
|
|
|
|
protected void format(int tracksPerDisk, int sectorsPerTrack) {
|
|
|
|
// TODO: get an image of a "blank" NakedOS disk and capture the boot code
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Validate track/sector range. This just validates the
|
|
|
|
* maximum values allowable for track and sector.
|
|
|
|
*/
|
|
|
|
protected void checkRange(int track, int sector) {
|
|
|
|
if (track > 50 || sector > 32) {
|
|
|
|
throw new IllegalArgumentException(
|
|
|
|
textBundle.format("DosFormatDisk.InvalidTrackAndSectorCombinationError", //$NON-NLS-1$
|
|
|
|
track, sector));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns the logical disk number. Returns a 0 to indicate no numbering.
|
|
|
|
*/
|
|
|
|
public int getLogicalDiskNumber() {
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns a valid filename for the given filename.
|
|
|
|
*/
|
|
|
|
public String getSuggestedFilename(String filename) {
|
|
|
|
int len = Math.min(filename.length(), 2);
|
|
|
|
return filename.toUpperCase().substring(0, len).trim();
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns a valid filetype for the given filename. The most simple
|
|
|
|
* format will just assume a filetype of binary. This method is
|
|
|
|
* available for the interface to make an intelligent first guess
|
|
|
|
* as to the filetype.
|
|
|
|
*/
|
|
|
|
public String getSuggestedFiletype(String filename) {
|
|
|
|
return "B"; //$NON-NLS-1$
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns a list of possible file types. Since the filetype is
|
|
|
|
* specific to each operating system, a simple String is used.
|
|
|
|
*/
|
|
|
|
public String[] getFiletypes() {
|
|
|
|
return filetypes;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Indicates if this filetype requires an address component.
|
|
|
|
* For DOS, only the Binary type needs an address.
|
|
|
|
*/
|
|
|
|
public boolean needsAddress(String filetype) {
|
|
|
|
return "B".equals(filetype); //$NON-NLS-1$
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Indicates if this FormattedDisk supports a disk map.
|
|
|
|
*/
|
|
|
|
public boolean supportsDiskMap() {
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Change to a different ImageOrder. Remains in DOS 3.3 format but
|
|
|
|
* the underlying order can change.
|
|
|
|
* @see ImageOrder
|
|
|
|
*/
|
|
|
|
public void changeImageOrder(ImageOrder imageOrder) {
|
|
|
|
AppleUtil.changeImageOrderByTrackAndSector(getImageOrder(), imageOrder);
|
|
|
|
setImageOrder(imageOrder);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Create a new DirectoryEntry.
|
|
|
|
* @see com.webcodepro.applecommander.storage.DirectoryEntry#createDirectory()
|
|
|
|
*/
|
|
|
|
public DirectoryEntry createDirectory() throws DiskFullException {
|
|
|
|
throw new UnsupportedOperationException(textBundle.get("DirectoryCreationNotSupported")); //$NON-NLS-1$
|
|
|
|
}
|
2012-08-08 03:10:57 +00:00
|
|
|
|
|
|
|
/**
|
|
|
|
* Create a new DirectoryEntry.
|
|
|
|
* @see com.webcodepro.applecommander.storage.DirectoryEntry#createDirectory()
|
|
|
|
*/
|
|
|
|
public DirectoryEntry createDirectory(String name) throws DiskFullException {
|
|
|
|
throw new UnsupportedOperationException(textBundle.get("DirectoryCreationNotSupported")); //$NON-NLS-1$
|
|
|
|
}
|
2010-08-09 06:40:08 +00:00
|
|
|
}
|