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https://github.com/AppleCommander/AppleCommander.git
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d69c923bad
1. This change introduces the current SWT builds that exist in Maven;
removing the need to locate and capture the JAR files.
2. The current SWT change is to capture the new Mac OS X aarch64 builds
("Apple Silicon").
3. The current version of SWT, however, requires Java 11.
4. Due to the complexity of the prior Gradle build, it was restructured.
116 lines
2.8 KiB
Java
116 lines
2.8 KiB
Java
/*
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* AppleCommander - An Apple ][ image utility.
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* Copyright (C) 2003 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.physical;
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/**
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* Manages the layout of the physical disk. This hides implementation details,
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* such as if the disk is in 2IMG order.
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* <p>
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* @author Rob Greene (RobGreene@users.sourceforge.net)
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*/
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public class ByteArrayImageLayout {
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/**
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* This is the physical copy of the disk image which a particular
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* implementation of ImageOrder will interpret.
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*/
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private byte[] diskImage;
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/**
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* Indicates if the disk image has changed.
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*/
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private boolean changed;
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/**
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* Construct a ByteArrayImageLayout.
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*/
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public ByteArrayImageLayout(byte[] diskImage) {
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setDiskImage(diskImage);
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}
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/**
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* Construct a ByteArrayImageLayout.
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*/
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public ByteArrayImageLayout(byte[] diskImage, boolean changed) {
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setDiskImage(diskImage);
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this.changed = changed;
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}
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/**
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* Construct a ByteArrayImageLayout.
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*/
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public ByteArrayImageLayout(int size) {
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diskImage = new byte[size];
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changed = true;
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}
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/**
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* Get the physical disk image.
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*/
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public byte[] getDiskImage() {
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return diskImage;
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}
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/**
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* Set the physical disk image.
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*/
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public void setDiskImage(byte[] diskImage) {
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this.diskImage = diskImage;
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changed = true;
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}
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/**
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* Answer with the physical size of this disk volume.
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*/
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public int getPhysicalSize() {
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return (diskImage != null) ? diskImage.length : 0;
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}
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/**
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* Extract a portion of the disk image.
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*/
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public byte[] readBytes(int start, int length) {
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byte[] buffer = new byte[length];
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System.arraycopy(diskImage, start, buffer, 0, length);
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return buffer;
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}
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/**
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* Write data to the disk image.
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*/
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public void writeBytes(int start, byte[] bytes) {
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changed = true;
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System.arraycopy(bytes, 0, diskImage, start, bytes.length);
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}
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/**
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* Indicates if the disk has changed. Triggered when data is
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* written and cleared when data is saved.
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*/
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public boolean hasChanged() {
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return changed;
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}
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/**
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* Set the changed indicator.
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*/
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public void setChanged(boolean changed) {
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this.changed = changed;
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}
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}
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