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dmolony-DiskBrowser
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rewrote terrible sort routine

This commit is contained in:
Denis Molony 2019-10-22 09:50:49 +10:00
parent 0974aa1be7
commit cf5123fb4e
1 changed files with 38 additions and 71 deletions
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109
src/com/bytezone/diskbrowser/prodos/ProdosDisk.java
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@ -4,6 +4,8 @@ import java.awt.Color;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import javax.swing.tree.DefaultMutableTreeNode;
@ -36,6 +38,7 @@ public class ProdosDisk extends AbstractFormattedDisk
private final List<DirectoryHeader> headerEntries = new ArrayList<DirectoryHeader> ();
protected VolumeDirectoryHeader vdh;
private final DefaultMutableTreeNode volumeNode;
private final NodeComparator nodeComparator = new NodeComparator ();
private static final boolean debug = false;
@ -86,86 +89,32 @@ public class ProdosDisk extends AbstractFormattedDisk
if (ProdosDisk.prodosPreferences.sortDirectories)
{
sortLeaves (volumeNode);
sortFolders (volumeNode);
sortNodes (volumeNode);
((DefaultTreeModel) catalogTree.getModel ()).reload ();
}
}
public void sortLeaves (DefaultMutableTreeNode node)
public void sortNodes (DefaultMutableTreeNode node)
{
for (int i = 0; i < node.getChildCount (); i++)
int totalNodes = node.getChildCount ();
if (totalNodes == 0)
return;
List<DefaultMutableTreeNode> children = new ArrayList<> (totalNodes);
for (int i = 0; i < totalNodes; i++)
{
DefaultMutableTreeNode baseNode = (DefaultMutableTreeNode) node.getChildAt (i);
if (!baseNode.isLeaf ())
{
sortLeaves (baseNode);
continue;
}
String childName = ((FileEntry) baseNode.getUserObject ()).name;
DefaultMutableTreeNode smallestNode = null;
String smallestName = childName;
int smallestPos = -1;
for (int j = i + 1; j < node.getChildCount (); j++)
{
DefaultMutableTreeNode compareNode = (DefaultMutableTreeNode) node.getChildAt (j);
if (!compareNode.isLeaf ())
continue;
String compareName = ((FileEntry) compareNode.getUserObject ()).name;
if (smallestName.compareToIgnoreCase (compareName) > 0)
{
smallestNode = compareNode;
smallestName = compareName;
smallestPos = j;
}
}
if (smallestNode != null)
{
node.insert (baseNode, smallestPos);
node.insert (smallestNode, i);
}
DefaultMutableTreeNode child = (DefaultMutableTreeNode) node.getChildAt (i);
children.add (child);
if (!child.isLeaf ())
sortNodes (child);
}
}
public void sortFolders (DefaultMutableTreeNode node)
{
for (int i = 0; i < node.getChildCount (); i++)
if (totalNodes > 1)
{
DefaultMutableTreeNode baseNode = (DefaultMutableTreeNode) node.getChildAt (i);
if (baseNode.isLeaf ())
continue;
sortFolders (baseNode);
String childName = ((FileEntry) baseNode.getUserObject ()).name;
DefaultMutableTreeNode smallestNode = null;
String smallestName = childName;
int smallestPos = -1;
for (int j = i + 1; j < node.getChildCount (); j++)
{
DefaultMutableTreeNode compareNode = (DefaultMutableTreeNode) node.getChildAt (j);
if (compareNode.isLeaf ())
continue;
String compareName = ((FileEntry) compareNode.getUserObject ()).name;
if (smallestName.compareToIgnoreCase (compareName) > 0)
{
smallestNode = compareNode;
smallestName = compareName;
smallestPos = j;
}
}
if (smallestNode != null)
{
node.insert (baseNode, smallestPos);
node.insert (smallestNode, i);
}
node.removeAllChildren ();
Collections.sort (children, nodeComparator);
for (DefaultMutableTreeNode child : children)
node.add (child);
}
}
@ -369,4 +318,22 @@ public class ProdosDisk extends AbstractFormattedDisk
return text.toString ();
}
class NodeComparator implements Comparator<DefaultMutableTreeNode>
{
@Override
public int compare (DefaultMutableTreeNode o1, DefaultMutableTreeNode o2)
{
String name1 = ((FileEntry) o1.getUserObject ()).name;
String name2 = ((FileEntry) o2.getUserObject ()).name;
if (o1.isLeaf () && !o2.isLeaf ())
return -1;
if (!o1.isLeaf () && o2.isLeaf ())
return 1;
return name1.compareTo (name2);
}
}
}