/*
JPC: An x86 PC Hardware Emulator for a pure Java Virtual Machine
Release Version 2.4
A project from the Physics Dept, The University of Oxford
Copyright (C) 2007-2010 The University of Oxford
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as published by
the Free Software Foundation.
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Details (including contact information) can be found at:
jpc.sourceforge.net
or the developer website
sourceforge.net/projects/jpc/
Conceived and Developed by:
Rhys Newman, Ian Preston, Chris Dennis
End of licence header
*/
package org.jpc.debugger.util;
import java.awt.BorderLayout;
import javax.swing.*;
import javax.swing.tree.*;
public class ErrorPanel extends JPanel
{
public ErrorPanel(Throwable error)
{
this(error.getMessage(), error);
}
public ErrorPanel(String message, Throwable error)
{
super(new BorderLayout(10, 10));
setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
if (message == null)
message = "";
setError(message, error);
}
public void setError(Throwable t)
{
setError(t.getMessage(), t);
}
public void setError(String message, Throwable t)
{
removeAll();
if (t == null)
return;
JTextField description = new JTextField(message);
description.setEditable(false);
add("North", description);
TreeNode root = buildErrorTraceTree(message, t);
JTree tree = new JTree(new DefaultTreeModel(root));
add("Center", new JScrollPane(tree));
for (int i=0; i<root.getChildCount(); i++)
tree.expandRow(i);
}
public boolean refreshDisplay(Object src)
{
if ((src != null) && (src instanceof Throwable))
{
setError((Throwable) src);
return true;
}
return false;
}
public static MutableTreeNode buildErrorTraceTree(String message, Throwable err)
{
DefaultMutableTreeNode root = new DefaultMutableTreeNode(message+": "+err);
StackTraceElement[] trace = err.getStackTrace();
for (int i=0; i<trace.length; i++)
root.add(new DefaultMutableTreeNode(String.valueOf(trace[i])));
Throwable cause = err.getCause();
if (cause != null)
root.add(buildErrorTraceTree("Caused by", cause));
return root;
}
public static ErrorPanel createDisplayable(Object data)
{
if ((data == null) || !(data instanceof Throwable))
return null;
return new ErrorPanel((Throwable) data);
}
}