qgis exception classes

git-svn-id: http://svn.osgeo.org/qgis/trunk@1999 c8812cc2-4d05-0410-92ff-de0c093fc19c

src/qgsexception.h

@@ -0,0 +1,75 @@
+/***************************************************************************
+                          qgsproject.cpp -  description
+                             -------------------
+  begin                : August 31, 2004
+  copyright            : (C) 2004 by Mark Coletti
+  email                : mcoletti at gmail.com
+***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+#ifndef QGSEXCEPTION_H
+#define QGSEXCEPTION_H
+
+#include <exception>
+#include <string>
+
+#include <qstring.h>
+
+/**
+   Defines a qgis exception class
+ */
+class QgsException : public std::exception
+{
+public:
+
+    QgsException( std::string const & what )
+        : what_( what )
+        {}
+
+    QgsException( QString const & what )
+        : what_( what.ascii() )
+        {}
+
+    virtual ~QgsException() throw()
+        {}
+
+    const char* what() const throw()
+    {
+        return what_.c_str();
+    }
+    
+private:
+
+    /// description of exception
+    std::string what_;
+
+}; // class QgsException
+
+
+/** for Qgis I/O related exceptions 
+
+  @note usually thrown for opening file's that don't exist, and the like.
+
+*/
+class QgsIOException : public QgsException
+{
+public:
+
+    QgsIOException( std::string const & what )
+        : QgsException( what )
+        {}
+
+    QgsIOException( QString const & what )
+        : QgsException( what )
+        {}
+
+}; // class QgsIOException
+
+#endif