bugfix

2 files changed, 41 insertions, 1 deletions

diff --git a/sources/exceptions/VSNegativeNumberException.java b/sources/exceptions/VSNegativeNumberException.java
new file mode 100644
index 0000000..ea6073c
--- /dev/null
+++ b/sources/exceptions/VSNegativeNumberException.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2008 Paul C. Buetow, vs@dev.buetow.org
+ *
+ * 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.
+ *
+ * All icons of the icons/ folder are 	under a Creative Commons
+ * Attribution-Noncommercial-Share Alike License a CC-by-nc-sa.
+ *
+ * The icon's homepage is http://code.google.com/p/ultimate-gnome/
+ */
+
+package exceptions;
+
+/**
+ * The Interface VSNegativeNumberException, this exception is thrown if
+ * a negative number has returned if a positive number has been expected.
+ *
+ * @author Paul C. Buetow
+ */
+public class VSNegativeNumberException extends Exception {
+}
diff --git a/sources/simulator/VSSimulator.java b/sources/simulator/VSSimulator.java
index 9b0ef2a..ae3c2db 100644
--- a/sources/simulator/VSSimulator.java
+++ b/sources/simulator/VSSimulator.java
@@ -34,6 +34,7 @@ import javax.swing.table.*;
 import core.*;
 import events.*;
 import events.internal.*;
+import exceptions.*;
 import prefs.*;
 import prefs.editors.*;
 import serialize.*;
@@ -515,6 +516,8 @@ public class VSSimulator extends JPanel implements VSSerializable {
                     public void actionPerformed(ActionEvent ae) {
                         try {
                             Long val = Long.valueOf(valField.getText());
+							if (val.longValue() < 0) 
+								throw new VSNegativeNumberException();
                             VSTask task = model.removeTaskAtRow(row);
                             task.setTaskTime(val.longValue());
                             taskManager.addTask(task, VSTaskManager.PROGRAMMED);
@@ -532,7 +535,11 @@ public class VSSimulator extends JPanel implements VSSerializable {
                         } catch (NumberFormatException exc) {
                             valField.setBackground(Color.RED);
                             isRed = true;
-                        }
+
+                        } catch (VSNegativeNumberException exc) {
+                            valField.setBackground(Color.RED);
+                            isRed = true;
+						}
                     }
                 });
                 return valField;