mirror of
https://github.com/peterdell/wudsn-ide.git
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104 lines
3.0 KiB
Java
104 lines
3.0 KiB
Java
/**
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* Copyright (C) 2009 - 2021 <a href="https://www.wudsn.com" target="_top">Peter Dell</a>
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*
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* This file is part of WUDSN IDE.
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*
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* WUDSN IDE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* WUDSN IDE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with WUDSN IDE. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.wudsn.ide.hex;
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import org.eclipse.jface.viewers.ISelection;
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/**
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* Container class for selections in the hex editor.
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*
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* @author Peter Dell
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*
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*/
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final class HexEditorSelection implements ISelection {
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private long startOffset;
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private long endOffset;
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private byte[] bytes;
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/**
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* Creates a new selection.
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*
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* @param startOffset The start offset in the original array, a non-negative
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* number.
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* @param endOffset The end offset in the original array, a non-negative
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* number greater or equal to the start offset.
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* @param bytes The content of the selection, may be empty, not
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* <code>null</code>.
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*/
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public HexEditorSelection(long startOffset, long endOffset, byte[] bytes) {
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if (startOffset < 0) {
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throw new IllegalArgumentException(
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"Parameter 'startOffset' must not be negative, specified value is " + startOffset + ".");
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}
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if (endOffset < startOffset) {
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throw new IllegalArgumentException("Parameter 'endOffset' must not be smaller than startOffset "
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+ startOffset + ", specified value is " + endOffset + ".");
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}
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if (bytes == null) {
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throw new IllegalArgumentException("Parameter 'bytes' must not be null.");
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}
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this.startOffset = startOffset;
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this.endOffset = endOffset;
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this.bytes = bytes;
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}
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@Override
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public boolean isEmpty() {
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return bytes.length == 0;
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}
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/**
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* Gets the start offset of the selection in the original array.
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*
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* @return The start offset in the original array, a non-negative number.
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*
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*/
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public long getStartOffset() {
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return startOffset;
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}
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/**
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* Gets the end offset in the original array.
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*
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* @return The end offset in the original array, a non-negative number greater
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* or equal to the start offset.
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*/
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public long getEndOffset() {
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return endOffset;
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}
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/**
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* Gets the content of the selection.
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*
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* @return The content of the selection, may be empty, not <code>null</code> .
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*/
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public byte[] getBytes() {
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return bytes;
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}
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@Override
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public String toString() {
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return "HexEditorSelection from " + startOffset + " to " + endOffset + ": " + bytes.length + " bytes";
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}
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}
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