added crash reporter

2 files changed, 124 insertions, 5 deletions

diff --git a/src/cuchaz/enigma/gui/CrashDialog.java b/src/cuchaz/enigma/gui/CrashDialog.java
new file mode 100644
index 0000000..501080e
--- /dev/null
+++ b/src/cuchaz/enigma/gui/CrashDialog.java
@@ -0,0 +1,107 @@
+/*******************************************************************************
+ * Copyright (c) 2014 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Public License v3.0
+ * which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/gpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.gui;
+
+import java.awt.BorderLayout;
+import java.awt.Container;
+import java.awt.FlowLayout;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+import javax.swing.BorderFactory;
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.JTextArea;
+import javax.swing.WindowConstants;
+
+import cuchaz.enigma.Constants;
+
+public class CrashDialog
+{
+        private static CrashDialog m_instance = null;
+        
+        private JFrame m_frame;
+        private JTextArea m_text;
+        
+        private CrashDialog( JFrame parent )
+        {
+                // init frame
+                m_frame = new JFrame( Constants.Name + " - Crash Report" );
+                final Container pane = m_frame.getContentPane();
+                pane.setLayout( new BorderLayout() );
+                
+                JLabel label = new JLabel( Constants.Name + " has crashed! =(" );
+                label.setBorder( BorderFactory.createEmptyBorder( 10, 10, 10, 10 ) );
+                pane.add( label, BorderLayout.NORTH );
+                
+                // report panel
+                m_text = new JTextArea();
+                m_text.setTabSize( 2 );
+                pane.add( new JScrollPane( m_text ), BorderLayout.CENTER );
+                
+                // buttons panel
+                JPanel buttonsPanel = new JPanel();
+                FlowLayout buttonsLayout = new FlowLayout();
+                buttonsLayout.setAlignment( FlowLayout.RIGHT );
+                buttonsPanel.setLayout( buttonsLayout );
+                JButton ignoreButton = new JButton( "Ignore" );
+                ignoreButton.addActionListener( new ActionListener( )
+                {
+                        @Override
+                        public void actionPerformed( ActionEvent event )
+                        {
+                                // close (hide) the dialog
+                                m_frame.setVisible( false );
+                        }
+                } );
+                buttonsPanel.add( ignoreButton );
+                JButton exitButton = new JButton( "Exit" );
+                exitButton.addActionListener( new ActionListener( )
+                {
+                        @Override
+                        public void actionPerformed( ActionEvent event )
+                        {
+                                // exit enigma
+                                System.exit( 1 );
+                        }
+                } );
+                buttonsPanel.add( exitButton );
+                pane.add( buttonsPanel, BorderLayout.SOUTH );
+                
+                // show the frame
+                m_frame.setSize( 600, 400 );
+                m_frame.setLocationRelativeTo( parent );
+                m_frame.setDefaultCloseOperation( WindowConstants.DO_NOTHING_ON_CLOSE );
+        }
+        
+        public static void init( JFrame parent )
+        {
+                m_instance = new CrashDialog( parent );
+        }
+        
+        public static void show( Throwable ex )
+        {
+                // get the error report
+                StringWriter buf = new StringWriter();
+                ex.printStackTrace( new PrintWriter( buf ) );
+                String report = buf.toString();
+                
+                // show it!
+                m_instance.m_text.setText( report );
+                m_instance.m_frame.doLayout();
+                m_instance.m_frame.setVisible( true );
+        }
+}
diff --git a/src/cuchaz/enigma/gui/Gui.java b/src/cuchaz/enigma/gui/Gui.java
index 3dcb4e2..e357382 100644
--- a/src/cuchaz/enigma/gui/Gui.java
+++ b/src/cuchaz/enigma/gui/Gui.java
@@ -28,6 +28,7 @@ import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
 import java.io.File;
 import java.io.IOException;
+import java.lang.Thread.UncaughtExceptionHandler;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Comparator;
@@ -176,6 +177,22 @@ public class Gui
         
         public Gui( )
         {
+                // init frame
+                m_frame = new JFrame( Constants.Name );
+                final Container pane = m_frame.getContentPane();
+                pane.setLayout( new BorderLayout() );
+                
+                // install a global exception handler to the event thread
+                CrashDialog.init( m_frame );
+                Thread.setDefaultUncaughtExceptionHandler( new UncaughtExceptionHandler( )
+                {
+                        @Override
+                        public void uncaughtException( Thread thread, Throwable ex )
+                        {
+                                CrashDialog.show( ex );
+                        }
+                } );
+                
                 m_controller = new GuiController( this );
                 
                 // init file choosers
@@ -184,11 +201,6 @@ public class Gui
                 m_exportFileChooser = new JFileChooser();
                 m_exportFileChooser.setFileSelectionMode( JFileChooser.DIRECTORIES_ONLY );
                 
-                // init frame
-                m_frame = new JFrame( Constants.Name );
-                final Container pane = m_frame.getContentPane();
-                pane.setLayout( new BorderLayout() );
-                
                 // init obfuscated classes list
                 m_obfClasses = new JList<String>();
                 m_obfClasses.setSelectionMode( ListSelectionModel.SINGLE_SELECTION );