mirror of
https://github.com/AppleCommander/AppleCommander.git
synced 2024-06-26 10:29:28 +00:00
571da54fd0
date.
92 lines
2.7 KiB
Java
92 lines
2.7 KiB
Java
/*
|
|
* AppleCommander - An Apple ][ image utility.
|
|
* Copyright (C) 2002-2022 by Robert Greene
|
|
* robgreene at users.sourceforge.net
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
package com.webcodepro.applecommander.storage;
|
|
|
|
import java.util.Comparator;
|
|
|
|
/**
|
|
* Sort FileEntry objects by the columnIndex. Mostly useful to the interface.
|
|
* The columns are tested to see if they are numerical - if so, an Integer compare
|
|
* is done (instead of a String).
|
|
* <p>
|
|
* Date created: Oct 27, 2002 8:24:39 PM
|
|
* @author Rob Greene
|
|
*/
|
|
public class FileEntryComparator implements Comparator<FileEntry> {
|
|
private int columnIndex;
|
|
private int displayMode;
|
|
|
|
/**
|
|
* Construct a FileEntryComparator for the given columnIndex.
|
|
*/
|
|
public FileEntryComparator(int columnIndex, int displayMode) {
|
|
this.columnIndex = columnIndex;
|
|
this.displayMode = displayMode;
|
|
}
|
|
|
|
/**
|
|
* Compare two FileEntry objects.
|
|
* @see java.util.Comparator#compare(Object, Object)
|
|
*/
|
|
public int compare(FileEntry entry1, FileEntry entry2) {
|
|
if (entry1 == null || entry2 == null) {
|
|
return ((entry1 == null) ? -1 : 0) + ((entry2 == null) ? 1 : 0);
|
|
}
|
|
|
|
String column1 = entry1.getFileColumnData(displayMode).get(columnIndex);
|
|
String column2 = entry2.getFileColumnData(displayMode).get(columnIndex);
|
|
|
|
if (isAllDigits(column1) && isAllDigits(column2)) {
|
|
int int1 = toInt(column1);
|
|
int int2 = toInt(column2);
|
|
return int1 - int2;
|
|
}
|
|
return column1.compareTo(column2);
|
|
}
|
|
|
|
/**
|
|
* Test for digits in the screen.
|
|
*/
|
|
protected boolean isAllDigits(String string) {
|
|
if (string == null || string.length() == 0) return false;
|
|
for (int i=0; i<string.length(); i++) {
|
|
char ch = string.charAt(i);
|
|
if (!Character.isDigit(ch) && ch != ',') {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Convert String to int.
|
|
*/
|
|
protected int toInt(String string) {
|
|
StringBuffer buf = new StringBuffer(string.length());
|
|
for (int i=0; i<string.length(); i++) {
|
|
char ch = string.charAt(i);
|
|
if (Character.isDigit(ch)) {
|
|
buf.append(ch);
|
|
}
|
|
}
|
|
return Integer.parseInt(buf.toString());
|
|
}
|
|
}
|