Apple-2-Tools/dmolony-DiskBrowser
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auto expand selected path

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Denis Molony 2019-11-04 10:14:06 +10:00
parent f5cdeb61cb
commit ca44da4c94
2 changed files with 43 additions and 13 deletions
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50
src/com/bytezone/diskbrowser/gui/AbstractTab.java
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@ -30,18 +30,22 @@ import javax.swing.tree.TreeSelectionModel;
import com.bytezone.diskbrowser.gui.RedoHandler.RedoData; import com.bytezone.diskbrowser.gui.RedoHandler.RedoData;
import com.bytezone.diskbrowser.gui.TreeBuilder.FileNode; import com.bytezone.diskbrowser.gui.TreeBuilder.FileNode;
// -----------------------------------------------------------------------------------//
abstract class AbstractTab extends JPanel implements Tab abstract class AbstractTab extends JPanel implements Tab
// -----------------------------------------------------------------------------------//
{ {
private final static Cursor handCursor = new Cursor (Cursor.HAND_CURSOR); private final static Cursor handCursor = new Cursor (Cursor.HAND_CURSOR);
private final List<MouseAdapter> adapters = new ArrayList<MouseAdapter> (); private final List<MouseAdapter> adapters = new ArrayList<MouseAdapter> ();
private Font font; private Font font;
private final JScrollPane scrollpane; private final JScrollPane scrollPane;
final DiskAndFileSelector eventHandler; final DiskAndFileSelector eventHandler;
final RedoHandler redoHandler; final RedoHandler redoHandler;
final RedoData redoData; final RedoData redoData;
protected JTree tree; protected JTree tree;
// ---------------------------------------------------------------------------------//
public AbstractTab (RedoHandler redoHandler, DiskAndFileSelector selector, Font font) public AbstractTab (RedoHandler redoHandler, DiskAndFileSelector selector, Font font)
// ---------------------------------------------------------------------------------//
{ {
super (new BorderLayout ()); super (new BorderLayout ());
@ -50,17 +54,20 @@ abstract class AbstractTab extends JPanel implements Tab
this.redoHandler = redoHandler; this.redoHandler = redoHandler;
this.redoData = redoHandler.createData (); this.redoData = redoHandler.createData ();
scrollpane = scrollPane =
new JScrollPane (null, VERTICAL_SCROLLBAR_ALWAYS, HORIZONTAL_SCROLLBAR_NEVER); new JScrollPane (null, VERTICAL_SCROLLBAR_ALWAYS, HORIZONTAL_SCROLLBAR_NEVER);
scrollpane.setBorder (null); scrollPane.setBorder (null);
add (scrollpane, BorderLayout.CENTER); // scrollPane.setBorder (BorderFactory.createEmptyBorder ());
add (scrollPane, BorderLayout.CENTER);
} }
// ---------------------------------------------------------------------------------//
protected void setTree (JTree tree) protected void setTree (JTree tree)
// ---------------------------------------------------------------------------------//
{ {
this.tree = tree; this.tree = tree;
tree.setFont (font); tree.setFont (font);
scrollpane.setViewportView (tree); scrollPane.setViewportView (tree);
TreeSelectionModel tsm = tree.getSelectionModel (); TreeSelectionModel tsm = tree.getSelectionModel ();
tsm.setSelectionMode (TreeSelectionModel.SINGLE_TREE_SELECTION); tsm.setSelectionMode (TreeSelectionModel.SINGLE_TREE_SELECTION);
@ -70,38 +77,50 @@ abstract class AbstractTab extends JPanel implements Tab
addTreeMouseListener (new CursorHandler ()); addTreeMouseListener (new CursorHandler ());
} }
// ---------------------------------------------------------------------------------//
protected void setTreeFont (Font font) protected void setTreeFont (Font font)
// ---------------------------------------------------------------------------------//
{ {
tree.setFont (font); tree.setFont (font);
this.font = font; this.font = font;
} }
// ---------------------------------------------------------------------------------//
public void addTreeMouseListener (MouseAdapter adapter) public void addTreeMouseListener (MouseAdapter adapter)
// ---------------------------------------------------------------------------------//
{ {
tree.addMouseListener (adapter); tree.addMouseListener (adapter);
adapters.add (adapter); adapters.add (adapter);
} }
// ---------------------------------------------------------------------------------//
private void restoreAdapters () private void restoreAdapters ()
// ---------------------------------------------------------------------------------//
{ {
for (MouseAdapter ma : adapters) for (MouseAdapter ma : adapters)
tree.addMouseListener (ma); tree.addMouseListener (ma);
} }
// ---------------------------------------------------------------------------------//
protected Object getSelectedObject () protected Object getSelectedObject ()
// ---------------------------------------------------------------------------------//
{ {
DefaultMutableTreeNode node = DefaultMutableTreeNode node =
(DefaultMutableTreeNode) tree.getLastSelectedPathComponent (); (DefaultMutableTreeNode) tree.getLastSelectedPathComponent ();
return node == null ? null : node.getUserObject (); return node == null ? null : node.getUserObject ();
} }
// ---------------------------------------------------------------------------------//
@Override @Override
public DefaultMutableTreeNode getRootNode () public DefaultMutableTreeNode getRootNode ()
// ---------------------------------------------------------------------------------//
{ {
return (DefaultMutableTreeNode) tree.getModel ().getRoot (); return (DefaultMutableTreeNode) tree.getModel ().getRoot ();
} }
// ---------------------------------------------------------------------------------//
protected DefaultMutableTreeNode findNode (int nodeNo) protected DefaultMutableTreeNode findNode (int nodeNo)
// ---------------------------------------------------------------------------------//
{ {
DefaultMutableTreeNode rootNode = getRootNode (); DefaultMutableTreeNode rootNode = getRootNode ();
Enumeration<TreeNode> children = rootNode.breadthFirstEnumeration (); Enumeration<TreeNode> children = rootNode.breadthFirstEnumeration ();
@ -112,7 +131,9 @@ abstract class AbstractTab extends JPanel implements Tab
return selectNode; return selectNode;
} }
// ---------------------------------------------------------------------------------//
protected DefaultMutableTreeNode findFirstLeafNode () protected DefaultMutableTreeNode findFirstLeafNode ()
// ---------------------------------------------------------------------------------//
{ {
DefaultMutableTreeNode rootNode = getRootNode (); DefaultMutableTreeNode rootNode = getRootNode ();
Enumeration<TreeNode> children = rootNode.depthFirstEnumeration (); Enumeration<TreeNode> children = rootNode.depthFirstEnumeration ();
@ -131,21 +152,28 @@ abstract class AbstractTab extends JPanel implements Tab
} }
// Trigger the TreeSelectionListener set by the real Tab (if the value is different) // Trigger the TreeSelectionListener set by the real Tab (if the value is different)
protected void showNode (DefaultMutableTreeNode showNode) // ---------------------------------------------------------------------------------//
protected void showNode (DefaultMutableTreeNode treeNode)
// ---------------------------------------------------------------------------------//
{ {
assert showNode != null; assert treeNode != null;
TreePath tp = getPathToNode (showNode); TreePath tp = getPathToNode (treeNode);
if (tp == null) if (tp == null)
{ {
System.out.println ("Not found: " + showNode); System.out.println ("Not found: " + treeNode);
return; return;
} }
tree.requestFocusInWindow ();
tree.setSelectionPath (tp); tree.setSelectionPath (tp);
tree.scrollPathToVisible (tp); tree.scrollPathToVisible (tp);
tree.requestFocusInWindow (); if (!treeNode.isLeaf ())
tree.expandPath (tp);
} }
// ---------------------------------------------------------------------------------//
protected TreePath getPathToNode (DefaultMutableTreeNode selectNode) protected TreePath getPathToNode (DefaultMutableTreeNode selectNode)
// ---------------------------------------------------------------------------------//
{ {
DefaultTreeModel treeModel = (DefaultTreeModel) tree.getModel (); DefaultTreeModel treeModel = (DefaultTreeModel) tree.getModel ();
TreeNode[] nodes = treeModel.getPathToRoot (selectNode); TreeNode[] nodes = treeModel.getPathToRoot (selectNode);
@ -154,7 +182,9 @@ abstract class AbstractTab extends JPanel implements Tab
return new TreePath (nodes); return new TreePath (nodes);
} }
// ---------------------------------------------------------------------------------//
private class CursorHandler extends MouseAdapter private class CursorHandler extends MouseAdapter
// ---------------------------------------------------------------------------------//
{ {
private Cursor oldCursor; private Cursor oldCursor;