some code cleanup + listen for FileOpen events

new About window (like in OMEdit)
store ini file in openmodelica folder (like OMEdit)
provide custom Info.plist for OS X to set file extensions
maximize window on start

OMNotebook/OMNotebookGUI/Info.plist

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist SYSTEM "file://localhost/System/Library/DTDs/PropertyList.dtd">
+<plist version="0.9">
+<dict>
+	<key>CFBundleDocumentTypes</key>
+        <array>
+            <dict>
+                <key>CFBundleTypeExtensions</key>
+                <array>
+                    <string>onb</string>
+                    <string>onbz</string>
+                </array>
+                <key>CFBundleTypeIconFile</key>
+                <string>@ICON@</string>
+                <key>CFBundleTypeName</key>
+                <string>OpenModelica Notebook</string>
+                <key>CFBundleTypeRole</key>
+                <string>Editor</string>
+                <key>LSIsAppleDefaultForType</key>
+                <true/>
+            </dict>
+        </array>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+	<key>CFBundleIconFile</key>
+	<string>@ICON@</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleGetInfoString</key>
+	<string>Created by Qt/QMake</string>
+	<key>CFBundleSignature</key>
+	<string>@TYPEINFO@</string>
+	<key>CFBundleExecutable</key>
+	<string>@EXECUTABLE@</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.yourcompany.@EXECUTABLE@</string>
+	<key>NOTE</key>
+	<string>This file was generated by Qt/QMake.</string>
+</dict>
+</plist>

OMNotebook/OMNotebookGUI/OMNotebookGUI.pro

@@ -182,3 +182,5 @@ CONFIG += warn_off
 
 ICON = Resources/OMNotebook_icon.icns
 
+QMAKE_INFO_PLIST = Info.plist
+

OMNotebook/OMNotebookGUI/cellapplication.cpp

@@ -83,10 +83,34 @@ namespace IAEX
 
     // ******************************************************
 
+    class MyApp : public QApplication {
+    private:
+      CellApplication * ca = NULL;
+      public:
+        MyApp(int& argc, char**argv, CellApplication * c): QApplication(argc, argv)
+        {ca = c;}
+        bool event(QEvent *event) {
+          switch(event->type())
+          {
+            case QEvent::FileOpen:
+            {
+              QFileOpenEvent * fileOpenEvent = static_cast<QFileOpenEvent *>(event);
+              if(fileOpenEvent) {
+                ca->open(fileOpenEvent->file());
+
+                return true;
+              }
+            }
+            default:
+              return QApplication::event(event);
+          }
+        }
+    };
+
   CellApplication::CellApplication( int &argc, char *argv[] )
     : QObject()
   {
-    app_ = new QApplication(argc, argv);
+    app_ = new MyApp(argc, argv, this);
     mainWindow = new QMainWindow();
     QDir dir;
 
@@ -379,8 +403,12 @@ namespace IAEX
 
       // 2006-01-31 AF, show window again
       v->show();
+      v->raise();  // for MacOS
+      v->activateWindow(); // for Windows
 
-      v->resize( 801, 600 ); //fjass
+      QDesktopWidget dw;
+      v->move(0, 0);
+      v->resize(dw.geometry().width(),dw.geometry().height());
 
       // 2005-11-30 AF, apply hide() and show() to closed groupcells
       // childs in the documentview

OMNotebook/OMNotebookGUI/graphcell.cpp

@@ -83,24 +83,6 @@
 using namespace OMPlot;
 
 namespace IAEX {
-  /*!
-  * \class SleeperThread
-  * \author Anders Ferström
-  *
-  * \brief Extends QThread. A small trick to get access to protected
-  * function in QThread.
-  */
-  class SleeperThread : public QThread
-  {
-  public:
-    static void msleep(unsigned long msecs)
-    {
-      QThread::msleep(msecs);
-    }
-  };
-
-
-
   /*!
   * \class MyTextEdit2
   * \author Anders Ferström

OMNotebook/OMNotebookGUI/inputcell.cpp

@@ -73,24 +73,6 @@
 
 namespace IAEX
 {
-  /*!
-   * \class SleeperThread
-   * \author Anders Ferström
-   *
-   * \brief Extends QThread. A small trick to get access to protected
-   * function in QThread.
-   */
-  class SleeperThread : public QThread
-  {
-  public:
-    static void msleep(unsigned long msecs)
-    {
-      QThread::msleep(msecs);
-    }
-  };
-
-
-
   /*!
    * \class MyTextEdit
    * \author Anders Ferström

OMNotebook/OMNotebookGUI/latexcell.cpp

@@ -84,23 +84,6 @@
 #include "indent.h"
 
 namespace IAEX {
-  /*!
-  * \class SleeperThread
-  * \author Anders Ferström
-  *
-  * \brief Extends QThread. A small trick to get access to protected
-  * function in QThread.
-  */
-  class SleeperThread : public QThread
-  {
-  public:
-    static void msleep(unsigned long msecs)
-    {
-      QThread::msleep(msecs);
-    }
-  };
-
-
   /*!
   * \brief Extends QTextEdit. Mostly so I can catch when a user
   * clicks on the editor