fixed up todlist to work again. The segfault resulted due a real ugly code-style:

Never, realy never, use "using namespace <...>" inside a include file.
Ever use "Opie::<class>" or such inside include files. Think twice, before using
a "use namespace <...>" inside a c++ file. If you're using it just 3,4 times,
write "Opie::<class>::<variable>" or such. If you just simple write a using
namespace all the time it makes the idea of namespaces obsolete. Mostly: just
integrate your OWN namespace (in that case use namespace Todo;) - but try
to use all other namespaces the explicit way - so you will sure that the compiler
inherits the right methods.
ToDo: write this statement into the developer wiki

3 files changed, 5 insertions, 7 deletions

diff --git a/core/pim/todo/mainwindow.cpp b/core/pim/todo/mainwindow.cpp
index a244e58..c2f422d 100644
--- a/core/pim/todo/mainwindow.cpp
+++ b/core/pim/todo/mainwindow.cpp
@@ -61,13 +61,13 @@
 OPIE_EXPORT_APP( OApplicationFactory<Todo::MainWindow> )
 
 using namespace Todo;
 
 MainWindow::MainWindow( QWidget* parent,
                         const char* name, WFlags )
-    : OPimMainWindow( "Todolist", parent, name, WType_TopLevel | WStyle_ContextHelp )
+    : Opie::OPimMainWindow( "Todolist", parent, name, WType_TopLevel | WStyle_ContextHelp )
 {
     if (!name)
         setName("todo window");
 
     m_syncing = false;
     m_showing = false;
diff --git a/core/pim/todo/mainwindow.h b/core/pim/todo/mainwindow.h
index 6a7296b..b35a42b 100644
--- a/core/pim/todo/mainwindow.h
+++ b/core/pim/todo/mainwindow.h
@@ -46,23 +46,21 @@ class QMenuBar;
 class QToolBar;
 class QAction;
 class Ir;
 class QVBox;
 class QLineEdit;
 
-using namespace Opie;
-
 namespace Todo {
     typedef TodoView View;
     class TemplateManager;
     class Editor;
     class TodoShow;
     class TemplateEditor;
     struct QuickEditBase;
 
-    class MainWindow : public OPimMainWindow {
+    class MainWindow : public Opie::OPimMainWindow {
         Q_OBJECT
         friend class TodoView; // avoid QObject here....
         friend class TodoShow; // avoid QObject
     public:
         /* OApplicationFactory application Name */
         static QString appName() { return QString::fromLatin1("todolist"); }
@@ -141,13 +139,13 @@ private slots:
             *m_deleteAllAction,
             *m_deleteCompleteAction,
             *m_duplicateAction,
             *m_showOverDueAction,
             *m_showQuickTaskAction,
             *m_effectiveAction;
-        OWidgetStack *m_stack;
+        Opie::OWidgetStack *m_stack;
         QPopupMenu* m_catMenu,
             *m_edit,
             *m_options,
             *m_template;
 
         bool m_syncing:1;
@@ -202,12 +200,12 @@ private slots:
         void reload();
         int create();
         bool remove( int uid );
         void beam(int uid);
         void show( int uid );
         void edit( int uid );
-        void add( const OPimRecord& );
+        void add( const Opie::OPimRecord& );
         void doAlarm( const QDateTime& dt, int uid );
     };
 }
 
 #endif
diff --git a/core/pim/todo/quickeditimpl.cpp b/core/pim/todo/quickeditimpl.cpp
index cd0684f..94ae97e 100644
--- a/core/pim/todo/quickeditimpl.cpp
+++ b/core/pim/todo/quickeditimpl.cpp
@@ -18,13 +18,13 @@ QuickEditImpl::QuickEditImpl( QWidget* parent, bool visible )
     // TODO - probably should be done globally somewhere else,
     //        see also tableview.cpp/h, taskeditoroverview.cpp/h
     priority1 = Resource::loadPixmap( "todo/priority1" );
     priority3 = Resource::loadPixmap( "todo/priority3" );
     priority5 = Resource::loadPixmap( "todo/priority5" );
 
-    m_lbl = new OClickableLabel( this );
+    m_lbl = new Opie::OClickableLabel( this );
     m_lbl->setMinimumWidth( 15 );
     m_lbl->setPixmap( priority3 );
     connect(m_lbl, SIGNAL(clicked() ), this, SLOT(slotPrio()) );
     QWhatsThis::add( m_lbl, QWidget::tr( "Click here to set the priority of new task.\n\nThis area is called the quick task bar.\n\nIt allows you to quickly add a new task to your list.  This area can be shown or hidden by selecting Options->'Show quick task bar' from the menu above." ) );
 
     m_edit = new QLineEdit( this );