Make it possible to see what a backend supports

14 files changed, 126 insertions, 2 deletions

diff --git a/libopie/pim/otodoaccess.cpp b/libopie/pim/otodoaccess.cpp
index 5e89a1b..37f6fbc 100644
--- a/libopie/pim/otodoaccess.cpp
+++ b/libopie/pim/otodoaccess.cpp
@@ -1,56 +1,62 @@
 #include <qdatetime.h>
 
 #include <qpe/alarmserver.h>
 
 // #include "otodoaccesssql.h"
 #include "otodoaccess.h"
 #include "obackendfactory.h"
 
 OTodoAccess::OTodoAccess( OTodoAccessBackend* end, enum Access )
     : QObject(), OPimAccessTemplate<OTodo>( end ),  m_todoBackEnd( end )
 {
 //     if (end == 0l )
 //         m_todoBackEnd = new OTodoAccessBackendSQL( QString::null);
 
 	// Zecke: Du musst hier noch für das XML-Backend einen Appnamen übergeben !
         if (end == 0l )
 		m_todoBackEnd = OBackendFactory<OTodoAccessBackend>::Default ("todo", QString::null);
 
     setBackEnd( m_todoBackEnd );
 }
 OTodoAccess::~OTodoAccess() {
 //    qWarning("~OTodoAccess");
 }
 void OTodoAccess::mergeWith( const QValueList<OTodo>& list ) {
     QValueList<OTodo>::ConstIterator it;
     for ( it = list.begin(); it != list.end(); ++it ) {
         replace( (*it) );
     }
 }
 OTodoAccess::List OTodoAccess::effectiveToDos( const QDate& start,
                                                const QDate& end,
                                                bool includeNoDates ) {
     QArray<int> ints = m_todoBackEnd->effectiveToDos( start, end, includeNoDates );
 
     List lis( ints, this );
     return lis;
 }
 OTodoAccess::List OTodoAccess::effectiveToDos( const QDate& start,
                                                bool includeNoDates ) {
     return effectiveToDos( start, QDate::currentDate(),
                            includeNoDates );
 }
 OTodoAccess::List OTodoAccess::overDue() {
     List lis( m_todoBackEnd->overDue(), this );
     return lis;
 }
 /* sort order */
 OTodoAccess::List OTodoAccess::sorted( bool ascending, int sort,int filter, int cat ) {
     QArray<int> ints = m_todoBackEnd->sorted( ascending, sort,
                                       filter, cat );
     OTodoAccess::List list( ints, this );
     return list;
 }
 void OTodoAccess::removeAllCompleted() {
     m_todoBackEnd->removeAllCompleted();
 }
+QBitArray OTodoAccess::backendSupport( const QString& ) const{
+    return m_todoBackEnd->supports();
+}
+bool OTodoAccess::backendSupports( int attr,  const QString& ar) const{
+    return backendSupport(ar).testBit( attr );
+}
diff --git a/libopie/pim/otodoaccess.h b/libopie/pim/otodoaccess.h
index a626731..916923f 100644
--- a/libopie/pim/otodoaccess.h
+++ b/libopie/pim/otodoaccess.h
@@ -1,90 +1,105 @@
 #ifndef OPIE_TODO_ACCESS_H
 #define OPIE_TODO_ACCESS_H
 
 #include <qobject.h>
 #include <qvaluelist.h>
 
 #include "otodo.h"
 #include "otodoaccessbackend.h"
 #include "opimaccesstemplate.h"
 
 
 /**
  * OTodoAccess
  * the class to get access to
  * the todolist
  */
 class OTodoAccess : public QObject, public OPimAccessTemplate<OTodo> {
     Q_OBJECT
 public:
     enum SortOrder { Completed = 0,
                      Priority,
                      Description,
                      Deadline };
     enum SortFilter{ Category =1,
                      OnlyOverDue= 2,
                      DoNotShowCompleted =4  };
     /**
      * if you use 0l
      * the default resource will be
      * picked up
      */
     OTodoAccess( OTodoAccessBackend* = 0l, enum Access acc = Random );
     ~OTodoAccess();
 
 
     /* our functions here */
     /**
      * include todos from start to end
      * includeNoDates whether or not to include
      * events with no dates
      */
     List effectiveToDos( const QDate& start,
                          const QDate& end,
                          bool includeNoDates = true );
 
     /**
      * start
      * end date taken from the currentDate()
      */
     List effectiveToDos( const QDate& start,
                          bool includeNoDates = true );
 
 
     /**
      * return overdue OTodos
      */
     List overDue();
 
     /**
      *
      */
     List sorted( bool ascending, int sortOrder, int sortFilter, int cat );
 
     /**
      * merge a list of OTodos into
      * the resource
      */
     void mergeWith( const QValueList<OTodo>& );
 
     /**
      * delete all already completed items
      */
     void removeAllCompleted();
 
+    /**
+     * request information about what a backend supports.
+     * Supports in the sense of beeing able to store.
+     * This is related to the enum in OTodo
+     *
+     * @param backend Will be used in the future when we support multiple backend
+     */
+    QBitArray backendSupport( const QString& backend = QString::null )const;
+
+    /**
+     * see above but for a specefic attribute. This method was added for convience
+     * @param attr The attribute to be queried for
+     * @param backend Will be used in the future when we support multiple backends
+     */
+    bool backendSupports( int attr, const QString& backend = QString::null  )const;
 signals:
     /**
      * if the OTodoAccess was changed
      */
     void changed( const OTodoAccess* );
     void changed( const OTodoAccess*, int uid );
     void added( const OTodoAccess*,  int uid );
     void removed( const OTodoAccess*, int uid );
 private:
     int m_cat;
     OTodoAccessBackend* m_todoBackEnd;
     class OTodoAccessPrivate;
     OTodoAccessPrivate* d;
 };
 
 #endif
diff --git a/libopie/pim/otodoaccessbackend.h b/libopie/pim/otodoaccessbackend.h
index 7944a2c..05e8ca9 100644
--- a/libopie/pim/otodoaccessbackend.h
+++ b/libopie/pim/otodoaccessbackend.h
@@ -1,21 +1,24 @@
 #ifndef OPIE_TODO_ACCESS_BACKEND_H
 #define OPIE_TODO_ACCESS_BACKEND_H
 
+#include <qbitarray.h>
+
 #include "otodo.h"
 #include "opimaccessbackend.h"
 
 class OTodoAccessBackend : public OPimAccessBackend<OTodo> {
 public:
     OTodoAccessBackend();
     ~OTodoAccessBackend();
     virtual QArray<int> effectiveToDos( const QDate& start,
                                         const QDate& end,
                                         bool includeNoDates ) = 0;
     virtual QArray<int> overDue() = 0;
     virtual QArray<int> sorted( bool asc, int sortOrder, int sortFilter,
                                 int cat ) = 0;
     virtual void        removeAllCompleted() = 0;
+    virtual QBitArray supports()const = 0;
 
 };
 
 #endif
diff --git a/libopie/pim/otodoaccessvcal.cpp b/libopie/pim/otodoaccessvcal.cpp
index 2136283..9bc16c6 100644
--- a/libopie/pim/otodoaccessvcal.cpp
+++ b/libopie/pim/otodoaccessvcal.cpp
@@ -106,96 +106,116 @@ bool OTodoAccessVCal::load() {
 
     while( moreIteration( &it ) ) {
         vobj = ::nextVObject( &it );
         QCString name = ::vObjectName( vobj );
         if( name == VCTodoProp ){
             OTodo to = eventByVObj( vobj );
             m_map.insert( to.uid(), to );
         }
     }
 
     // Should I do a delete vcal?
 
     return true;
 }
 bool OTodoAccessVCal::reload() {
     return load();
 }
 bool OTodoAccessVCal::save() {
     if (!m_dirty )
         return true;
 
     QFileDirect file( m_file );
     if (!file.open(IO_WriteOnly ) )
         return false;
 
     VObject *obj;
     obj = newVObject( VCCalProp );
     addPropValue( obj, VCVersionProp, "1.0" );
     VObject *vo;
     for(QMap<int, OTodo>::ConstIterator it=m_map.begin(); it !=m_map.end(); ++it ){
         vo = vobjByEvent( it.data() );
         addVObjectProp(obj, vo );
     }
     writeVObject( file.directHandle(), obj );
     cleanVObject( obj );
     cleanStrTbl();
 
     m_dirty = false;
     return true;
 }
 void OTodoAccessVCal::clear() {
     m_map.clear();
     m_dirty = true;
 }
 bool OTodoAccessVCal::add( const OTodo& to ) {
     m_map.insert( to.uid(), to );
     m_dirty = true;
     return true;
 }
 bool OTodoAccessVCal::remove( int uid ) {
     m_map.remove( uid );
     m_dirty = true;
     return true;
 }
 void OTodoAccessVCal::removeAllCompleted() {
     for ( QMap<int, OTodo>::Iterator it = m_map.begin(); it != m_map.end(); ++it ) {
         if ( (*it).isCompleted() )
             m_map.remove( it );
     }
 }
 bool OTodoAccessVCal::replace( const OTodo& to ) {
     m_map.replace( to.uid(), to );
     m_dirty = true;
     return true;
 }
 OTodo OTodoAccessVCal::find(int uid )const {
     return m_map[uid];
 }
 QArray<int> OTodoAccessVCal::sorted( bool, int, int, int ) {
     QArray<int> ar(0);
     return ar;
 }
 QArray<int> OTodoAccessVCal::allRecords()const {
     QArray<int> ar( m_map.count() );
     QMap<int, OTodo>::ConstIterator it;
     int i = 0;
     for ( it = m_map.begin(); it != m_map.end(); ++it ) {
         ar[i] = it.key();
         i++;
     }
     return ar;
 }
 QArray<int> OTodoAccessVCal::queryByExample( const OTodo&, int, const QDateTime& ) {
     QArray<int> ar(0);
     return ar;
 }
 QArray<int> OTodoAccessVCal::effectiveToDos( const QDate& ,
                                              const QDate& ,
                                              bool  ) {
     QArray<int> ar(0);
     return ar;
 }
 QArray<int> OTodoAccessVCal::overDue() {
     QArray<int> ar(0);
     return ar;
 }
+QBitArray OTodoAccessVCal::supports()const {
+    static QBitArray ar = sup();
+
+    return ar;
+}
+QBitArray OTodoAccessVCal::sup() {
+    QBitArray ar ( OTodo::CompletedDate +1 );
+    ar.fill( true );
+
+    ar[OTodo::CrossReference] = false;
+    ar[OTodo::State ] = false;
+    ar[OTodo::Reminders] = false;
+    ar[OTodo::Notifiers] = false;
+    ar[OTodo::Maintainer] = false;
+    ar[OTodo::Progress] = false;
+    ar[OTodo::Alarms ] = false;
+    ar[OTodo::Recurrence] = false;
+
+    return ar;
+}
diff --git a/libopie/pim/otodoaccessvcal.h b/libopie/pim/otodoaccessvcal.h
index a90ee9c..489416b 100644
--- a/libopie/pim/otodoaccessvcal.h
+++ b/libopie/pim/otodoaccessvcal.h
@@ -1,37 +1,39 @@
 #ifndef OPIE_OTODO_ACCESS_VCAL_H
 #define OPIE_OTODO_ACCESS_VCAL_H
 
 #include "otodoaccessbackend.h"
 
 class OTodoAccessVCal : public OTodoAccessBackend {
 public:
     OTodoAccessVCal(const QString& );
     ~OTodoAccessVCal();
 
     bool load();
     bool reload();
     bool save();
 
     QArray<int> allRecords()const;
     QArray<int> queryByExample( const OTodo& t, int sort, const QDateTime& d = QDateTime() );
     QArray<int> effectiveToDos( const QDate& start,
                                 const QDate& end,
                                 bool includeNoDates );
     QArray<int> overDue();
     QArray<int> sorted( bool asc, int sortOrder, int sortFilter,
                         int cat );
     OTodo find(int uid)const;
     void clear();
     bool add( const OTodo& );
     bool remove( int uid );
     bool replace( const OTodo& );
 
     void removeAllCompleted();
+    virtual QBitArray supports()const;
 
 private:
+    static QBitArray sup();
     bool m_dirty : 1;
     QString m_file;
     QMap<int, OTodo> m_map;
 };
 
 #endif
diff --git a/libopie/pim/otodoaccessxml.cpp b/libopie/pim/otodoaccessxml.cpp
index 71e8787..55f268b 100644
--- a/libopie/pim/otodoaccessxml.cpp
+++ b/libopie/pim/otodoaccessxml.cpp
@@ -571,105 +571,119 @@ public:
             ret = ret * -1;
 
         if ( ret )
             return ret;
 
         // default did not gave difference let's try it other way around
         /*
          * General try if already checked if not test
          * and return
          * 1.Completed
          * 2.Priority
          * 3.Description
          * 4.DueDate
          */
         if (!seComp ) {
             if ( (ret = completed( con1->todo, con2->todo ) ) ) {
                 if (!m_asc ) ret *= -1;
                 return ret;
             }
         }
         if (!sePrio ) {
             if ( (ret = priority( con1->todo, con2->todo ) ) ) {
                 if (!m_asc ) ret *= -1;
                 return ret;
             }
         }
         if (!seDesc ) {
             if ( (ret = description(con1->todo, con2->todo ) ) ) {
                 if (!m_asc) ret *= -1;
                 return ret;
             }
         }
         if (!seDeadline) {
             if ( (ret = deadline( con1->todo, con2->todo ) ) ) {
                 if (!m_asc) ret *= -1;
                 return ret;
             }
         }
 
         return 0;
     }
  private:
     bool m_asc;
     int m_sort;
 
 };
 
 QArray<int> OTodoAccessXML::sorted( bool asc,  int sortOrder,
                                     int sortFilter,  int cat ) {
     qWarning("sorted! %d cat",  cat);
     OTodoXMLVector vector(m_events.count(), asc,sortOrder );
     QMap<int, OTodo>::Iterator it;
     int item = 0;
 
     bool bCat = sortFilter & 1 ? true : false;
     bool bOnly = sortFilter & 2 ? true : false;
     bool comp = sortFilter & 4 ? true : false;
     for ( it = m_events.begin(); it != m_events.end(); ++it ) {
 
         /* show category */
         if ( bCat && cat != 0)
             if (!(*it).categories().contains( cat ) ) {
                 qWarning("category mis match");
                 continue;
             }
         /* isOverdue but we should not show overdue - why?*/
 /*        if ( (*it).isOverdue() &&  !bOnly  ) {
             qWarning("item is overdue but !bOnly");
             continue;
         }
 */
         if ( !(*it).isOverdue() && bOnly ) {
             qWarning("item is not overdue but bOnly checked");
             continue;
         }
 
         if ((*it).isCompleted() && comp ) {
             qWarning("completed continue!");
             continue;
         }
 
 
         OTodoXMLContainer* con = new OTodoXMLContainer();
         con->todo = (*it);
         vector.insert(item, con );
         item++;
     }
     qWarning("XXX %d Items added", item);
     vector.resize( item );
     /* sort it now */
     vector.sort();
     /* now get the uids */
     QArray<int> array( vector.count() );
     for (uint i= 0; i < vector.count(); i++ ) {
         array[i] = ( vector.at(i) )->todo.uid();
     }
-    qWarning("array count = %d %d", array.count(), vector.count() );
     return array;
 };
 void OTodoAccessXML::removeAllCompleted() {
     for ( QMap<int, OTodo>::Iterator it = m_events.begin(); it != m_events.end(); ++it ) {
         if ( (*it).isCompleted() )
             m_events.remove( it );
     }
 }
+QBitArray OTodoAccessXML::supports()const {
+    static QBitArray ar = sup();
+    return ar;
+}
+QBitArray OTodoAccessXML::sup() {
+    QBitArray ar( OTodo::CompletedDate +1 );
+    ar.fill( true );
+    ar[OTodo::CrossReference] = false;
+    ar[OTodo::State ] = false;
+    ar[OTodo::Reminders] = false;
+    ar[OTodo::Notifiers] = false;
+    ar[OTodo::Maintainer] = false;
+
+    return ar;
+}
diff --git a/libopie/pim/otodoaccessxml.h b/libopie/pim/otodoaccessxml.h
index 1032c92..cc4a16f 100644
--- a/libopie/pim/otodoaccessxml.h
+++ b/libopie/pim/otodoaccessxml.h
@@ -1,57 +1,59 @@
 #ifndef OPIE_TODO_ACCESS_XML_H
 #define OPIE_TODO_ACCESS_XML_H
 
 #include <qasciidict.h>
 #include <qmap.h>
 
 #include "otodoaccessbackend.h"
 
 namespace Opie {
     class XMLElement;
 };
 
 class OTodoAccessXML : public OTodoAccessBackend {
 public:
     /**
      * fileName if Empty we will use the default path
      */
     OTodoAccessXML( const QString& appName,
                     const QString& fileName = QString::null );
     ~OTodoAccessXML();
 
     bool load();
     bool reload();
     bool save();
 
     QArray<int> allRecords()const;
     QArray<int> queryByExample( const OTodo&, int querysettings, const QDateTime& d = QDateTime() );
     OTodo find( int uid )const;
     void clear();
     bool add( const OTodo& );
     bool remove( int uid );
     void removeAllCompleted();
     bool replace( const OTodo& );
 
     /* our functions */
     QArray<int> effectiveToDos( const QDate& start,
                                 const QDate& end,
                                 bool includeNoDates );
     QArray<int> overDue();
     QArray<int> sorted( bool asc,  int sortOrder,
                         int sortFilter, int cat );
+    QBitArray supports()const;
 private:
+    static QBitArray sup();
     void todo( QAsciiDict<int>*, OTodo&,const QCString&,const QString& );
     QString toString( const OTodo& )const;
     QString toString( const QArray<int>& ints ) const;
     QMap<int, OTodo> m_events;
     QString m_file;
     QString m_app;
     bool m_opened : 1;
     bool m_changed : 1;
     class OTodoAccessXMLPrivate;
     OTodoAccessXMLPrivate* d;
     int m_year, m_month, m_day;
 
 };
 
 #endif
diff --git a/libopie2/opiepim/backend/otodoaccessbackend.h b/libopie2/opiepim/backend/otodoaccessbackend.h
index 7944a2c..05e8ca9 100644
--- a/libopie2/opiepim/backend/otodoaccessbackend.h
+++ b/libopie2/opiepim/backend/otodoaccessbackend.h
@@ -1,21 +1,24 @@
 #ifndef OPIE_TODO_ACCESS_BACKEND_H
 #define OPIE_TODO_ACCESS_BACKEND_H
 
+#include <qbitarray.h>
+
 #include "otodo.h"
 #include "opimaccessbackend.h"
 
 class OTodoAccessBackend : public OPimAccessBackend<OTodo> {
 public:
     OTodoAccessBackend();
     ~OTodoAccessBackend();
     virtual QArray<int> effectiveToDos( const QDate& start,
                                         const QDate& end,
                                         bool includeNoDates ) = 0;
     virtual QArray<int> overDue() = 0;
     virtual QArray<int> sorted( bool asc, int sortOrder, int sortFilter,
                                 int cat ) = 0;
     virtual void        removeAllCompleted() = 0;
+    virtual QBitArray supports()const = 0;
 
 };
 
 #endif
diff --git a/libopie2/opiepim/backend/otodoaccessvcal.cpp b/libopie2/opiepim/backend/otodoaccessvcal.cpp
index 2136283..9bc16c6 100644
--- a/libopie2/opiepim/backend/otodoaccessvcal.cpp
+++ b/libopie2/opiepim/backend/otodoaccessvcal.cpp
@@ -106,96 +106,116 @@ bool OTodoAccessVCal::load() {
 
     while( moreIteration( &it ) ) {
         vobj = ::nextVObject( &it );
         QCString name = ::vObjectName( vobj );
         if( name == VCTodoProp ){
             OTodo to = eventByVObj( vobj );
             m_map.insert( to.uid(), to );
         }
     }
 
     // Should I do a delete vcal?
 
     return true;
 }
 bool OTodoAccessVCal::reload() {
     return load();
 }
 bool OTodoAccessVCal::save() {
     if (!m_dirty )
         return true;
 
     QFileDirect file( m_file );
     if (!file.open(IO_WriteOnly ) )
         return false;
 
     VObject *obj;
     obj = newVObject( VCCalProp );
     addPropValue( obj, VCVersionProp, "1.0" );
     VObject *vo;
     for(QMap<int, OTodo>::ConstIterator it=m_map.begin(); it !=m_map.end(); ++it ){
         vo = vobjByEvent( it.data() );
         addVObjectProp(obj, vo );
     }
     writeVObject( file.directHandle(), obj );
     cleanVObject( obj );
     cleanStrTbl();
 
     m_dirty = false;
     return true;
 }
 void OTodoAccessVCal::clear() {
     m_map.clear();
     m_dirty = true;
 }
 bool OTodoAccessVCal::add( const OTodo& to ) {
     m_map.insert( to.uid(), to );
     m_dirty = true;
     return true;
 }
 bool OTodoAccessVCal::remove( int uid ) {
     m_map.remove( uid );
     m_dirty = true;
     return true;
 }
 void OTodoAccessVCal::removeAllCompleted() {
     for ( QMap<int, OTodo>::Iterator it = m_map.begin(); it != m_map.end(); ++it ) {
         if ( (*it).isCompleted() )
             m_map.remove( it );
     }
 }
 bool OTodoAccessVCal::replace( const OTodo& to ) {
     m_map.replace( to.uid(), to );
     m_dirty = true;
     return true;
 }
 OTodo OTodoAccessVCal::find(int uid )const {
     return m_map[uid];
 }
 QArray<int> OTodoAccessVCal::sorted( bool, int, int, int ) {
     QArray<int> ar(0);
     return ar;
 }
 QArray<int> OTodoAccessVCal::allRecords()const {
     QArray<int> ar( m_map.count() );
     QMap<int, OTodo>::ConstIterator it;
     int i = 0;
     for ( it = m_map.begin(); it != m_map.end(); ++it ) {
         ar[i] = it.key();
         i++;
     }
     return ar;
 }
 QArray<int> OTodoAccessVCal::queryByExample( const OTodo&, int, const QDateTime& ) {
     QArray<int> ar(0);
     return ar;
 }
 QArray<int> OTodoAccessVCal::effectiveToDos( const QDate& ,
                                              const QDate& ,
                                              bool  ) {
     QArray<int> ar(0);
     return ar;
 }
 QArray<int> OTodoAccessVCal::overDue() {
     QArray<int> ar(0);
     return ar;
 }
+QBitArray OTodoAccessVCal::supports()const {
+    static QBitArray ar = sup();
+
+    return ar;
+}
+QBitArray OTodoAccessVCal::sup() {
+    QBitArray ar ( OTodo::CompletedDate +1 );
+    ar.fill( true );
+
+    ar[OTodo::CrossReference] = false;
+    ar[OTodo::State ] = false;
+    ar[OTodo::Reminders] = false;
+    ar[OTodo::Notifiers] = false;
+    ar[OTodo::Maintainer] = false;
+    ar[OTodo::Progress] = false;
+    ar[OTodo::Alarms ] = false;
+    ar[OTodo::Recurrence] = false;
+
+    return ar;
+}
diff --git a/libopie2/opiepim/backend/otodoaccessvcal.h b/libopie2/opiepim/backend/otodoaccessvcal.h
index a90ee9c..489416b 100644
--- a/libopie2/opiepim/backend/otodoaccessvcal.h
+++ b/libopie2/opiepim/backend/otodoaccessvcal.h
@@ -1,37 +1,39 @@
 #ifndef OPIE_OTODO_ACCESS_VCAL_H
 #define OPIE_OTODO_ACCESS_VCAL_H
 
 #include "otodoaccessbackend.h"
 
 class OTodoAccessVCal : public OTodoAccessBackend {
 public:
     OTodoAccessVCal(const QString& );
     ~OTodoAccessVCal();
 
     bool load();
     bool reload();
     bool save();
 
     QArray<int> allRecords()const;
     QArray<int> queryByExample( const OTodo& t, int sort, const QDateTime& d = QDateTime() );
     QArray<int> effectiveToDos( const QDate& start,
                                 const QDate& end,
                                 bool includeNoDates );
     QArray<int> overDue();
     QArray<int> sorted( bool asc, int sortOrder, int sortFilter,
                         int cat );
     OTodo find(int uid)const;
     void clear();
     bool add( const OTodo& );
     bool remove( int uid );
     bool replace( const OTodo& );
 
     void removeAllCompleted();
+    virtual QBitArray supports()const;
 
 private:
+    static QBitArray sup();
     bool m_dirty : 1;
     QString m_file;
     QMap<int, OTodo> m_map;
 };
 
 #endif
diff --git a/libopie2/opiepim/backend/otodoaccessxml.cpp b/libopie2/opiepim/backend/otodoaccessxml.cpp
index 71e8787..55f268b 100644
--- a/libopie2/opiepim/backend/otodoaccessxml.cpp
+++ b/libopie2/opiepim/backend/otodoaccessxml.cpp
@@ -571,105 +571,119 @@ public:
             ret = ret * -1;
 
         if ( ret )
             return ret;
 
         // default did not gave difference let's try it other way around
         /*
          * General try if already checked if not test
          * and return
          * 1.Completed
          * 2.Priority
          * 3.Description
          * 4.DueDate
          */
         if (!seComp ) {
             if ( (ret = completed( con1->todo, con2->todo ) ) ) {
                 if (!m_asc ) ret *= -1;
                 return ret;
             }
         }
         if (!sePrio ) {
             if ( (ret = priority( con1->todo, con2->todo ) ) ) {
                 if (!m_asc ) ret *= -1;
                 return ret;
             }
         }
         if (!seDesc ) {
             if ( (ret = description(con1->todo, con2->todo ) ) ) {
                 if (!m_asc) ret *= -1;
                 return ret;
             }
         }
         if (!seDeadline) {
             if ( (ret = deadline( con1->todo, con2->todo ) ) ) {
                 if (!m_asc) ret *= -1;
                 return ret;
             }
         }
 
         return 0;
     }
  private:
     bool m_asc;
     int m_sort;
 
 };
 
 QArray<int> OTodoAccessXML::sorted( bool asc,  int sortOrder,
                                     int sortFilter,  int cat ) {
     qWarning("sorted! %d cat",  cat);
     OTodoXMLVector vector(m_events.count(), asc,sortOrder );
     QMap<int, OTodo>::Iterator it;
     int item = 0;
 
     bool bCat = sortFilter & 1 ? true : false;
     bool bOnly = sortFilter & 2 ? true : false;
     bool comp = sortFilter & 4 ? true : false;
     for ( it = m_events.begin(); it != m_events.end(); ++it ) {
 
         /* show category */
         if ( bCat && cat != 0)
             if (!(*it).categories().contains( cat ) ) {
                 qWarning("category mis match");
                 continue;
             }
         /* isOverdue but we should not show overdue - why?*/
 /*        if ( (*it).isOverdue() &&  !bOnly  ) {
             qWarning("item is overdue but !bOnly");
             continue;
         }
 */
         if ( !(*it).isOverdue() && bOnly ) {
             qWarning("item is not overdue but bOnly checked");
             continue;
         }
 
         if ((*it).isCompleted() && comp ) {
             qWarning("completed continue!");
             continue;
         }
 
 
         OTodoXMLContainer* con = new OTodoXMLContainer();
         con->todo = (*it);
         vector.insert(item, con );
         item++;
     }
     qWarning("XXX %d Items added", item);
     vector.resize( item );
     /* sort it now */
     vector.sort();
     /* now get the uids */
     QArray<int> array( vector.count() );
     for (uint i= 0; i < vector.count(); i++ ) {
         array[i] = ( vector.at(i) )->todo.uid();
     }
-    qWarning("array count = %d %d", array.count(), vector.count() );
     return array;
 };
 void OTodoAccessXML::removeAllCompleted() {
     for ( QMap<int, OTodo>::Iterator it = m_events.begin(); it != m_events.end(); ++it ) {
         if ( (*it).isCompleted() )
             m_events.remove( it );
     }
 }
+QBitArray OTodoAccessXML::supports()const {
+    static QBitArray ar = sup();
+    return ar;
+}
+QBitArray OTodoAccessXML::sup() {
+    QBitArray ar( OTodo::CompletedDate +1 );
+    ar.fill( true );
+    ar[OTodo::CrossReference] = false;
+    ar[OTodo::State ] = false;
+    ar[OTodo::Reminders] = false;
+    ar[OTodo::Notifiers] = false;
+    ar[OTodo::Maintainer] = false;
+
+    return ar;
+}
diff --git a/libopie2/opiepim/backend/otodoaccessxml.h b/libopie2/opiepim/backend/otodoaccessxml.h
index 1032c92..cc4a16f 100644
--- a/libopie2/opiepim/backend/otodoaccessxml.h
+++ b/libopie2/opiepim/backend/otodoaccessxml.h
@@ -1,57 +1,59 @@
 #ifndef OPIE_TODO_ACCESS_XML_H
 #define OPIE_TODO_ACCESS_XML_H
 
 #include <qasciidict.h>
 #include <qmap.h>
 
 #include "otodoaccessbackend.h"
 
 namespace Opie {
     class XMLElement;
 };
 
 class OTodoAccessXML : public OTodoAccessBackend {
 public:
     /**
      * fileName if Empty we will use the default path
      */
     OTodoAccessXML( const QString& appName,
                     const QString& fileName = QString::null );
     ~OTodoAccessXML();
 
     bool load();
     bool reload();
     bool save();
 
     QArray<int> allRecords()const;
     QArray<int> queryByExample( const OTodo&, int querysettings, const QDateTime& d = QDateTime() );
     OTodo find( int uid )const;
     void clear();
     bool add( const OTodo& );
     bool remove( int uid );
     void removeAllCompleted();
     bool replace( const OTodo& );
 
     /* our functions */
     QArray<int> effectiveToDos( const QDate& start,
                                 const QDate& end,
                                 bool includeNoDates );
     QArray<int> overDue();
     QArray<int> sorted( bool asc,  int sortOrder,
                         int sortFilter, int cat );
+    QBitArray supports()const;
 private:
+    static QBitArray sup();
     void todo( QAsciiDict<int>*, OTodo&,const QCString&,const QString& );
     QString toString( const OTodo& )const;
     QString toString( const QArray<int>& ints ) const;
     QMap<int, OTodo> m_events;
     QString m_file;
     QString m_app;
     bool m_opened : 1;
     bool m_changed : 1;
     class OTodoAccessXMLPrivate;
     OTodoAccessXMLPrivate* d;
     int m_year, m_month, m_day;
 
 };
 
 #endif
diff --git a/libopie2/opiepim/core/otodoaccess.cpp b/libopie2/opiepim/core/otodoaccess.cpp
index 5e89a1b..37f6fbc 100644
--- a/libopie2/opiepim/core/otodoaccess.cpp
+++ b/libopie2/opiepim/core/otodoaccess.cpp
@@ -1,56 +1,62 @@
 #include <qdatetime.h>
 
 #include <qpe/alarmserver.h>
 
 // #include "otodoaccesssql.h"
 #include "otodoaccess.h"
 #include "obackendfactory.h"
 
 OTodoAccess::OTodoAccess( OTodoAccessBackend* end, enum Access )
     : QObject(), OPimAccessTemplate<OTodo>( end ),  m_todoBackEnd( end )
 {
 //     if (end == 0l )
 //         m_todoBackEnd = new OTodoAccessBackendSQL( QString::null);
 
 	// Zecke: Du musst hier noch für das XML-Backend einen Appnamen übergeben !
         if (end == 0l )
 		m_todoBackEnd = OBackendFactory<OTodoAccessBackend>::Default ("todo", QString::null);
 
     setBackEnd( m_todoBackEnd );
 }
 OTodoAccess::~OTodoAccess() {
 //    qWarning("~OTodoAccess");
 }
 void OTodoAccess::mergeWith( const QValueList<OTodo>& list ) {
     QValueList<OTodo>::ConstIterator it;
     for ( it = list.begin(); it != list.end(); ++it ) {
         replace( (*it) );
     }
 }
 OTodoAccess::List OTodoAccess::effectiveToDos( const QDate& start,
                                                const QDate& end,
                                                bool includeNoDates ) {
     QArray<int> ints = m_todoBackEnd->effectiveToDos( start, end, includeNoDates );
 
     List lis( ints, this );
     return lis;
 }
 OTodoAccess::List OTodoAccess::effectiveToDos( const QDate& start,
                                                bool includeNoDates ) {
     return effectiveToDos( start, QDate::currentDate(),
                            includeNoDates );
 }
 OTodoAccess::List OTodoAccess::overDue() {
     List lis( m_todoBackEnd->overDue(), this );
     return lis;
 }
 /* sort order */
 OTodoAccess::List OTodoAccess::sorted( bool ascending, int sort,int filter, int cat ) {
     QArray<int> ints = m_todoBackEnd->sorted( ascending, sort,
                                       filter, cat );
     OTodoAccess::List list( ints, this );
     return list;
 }
 void OTodoAccess::removeAllCompleted() {
     m_todoBackEnd->removeAllCompleted();
 }
+QBitArray OTodoAccess::backendSupport( const QString& ) const{
+    return m_todoBackEnd->supports();
+}
+bool OTodoAccess::backendSupports( int attr,  const QString& ar) const{
+    return backendSupport(ar).testBit( attr );
+}
diff --git a/libopie2/opiepim/core/otodoaccess.h b/libopie2/opiepim/core/otodoaccess.h
index a626731..916923f 100644
--- a/libopie2/opiepim/core/otodoaccess.h
+++ b/libopie2/opiepim/core/otodoaccess.h
@@ -1,90 +1,105 @@
 #ifndef OPIE_TODO_ACCESS_H
 #define OPIE_TODO_ACCESS_H
 
 #include <qobject.h>
 #include <qvaluelist.h>
 
 #include "otodo.h"
 #include "otodoaccessbackend.h"
 #include "opimaccesstemplate.h"
 
 
 /**
  * OTodoAccess
  * the class to get access to
  * the todolist
  */
 class OTodoAccess : public QObject, public OPimAccessTemplate<OTodo> {
     Q_OBJECT
 public:
     enum SortOrder { Completed = 0,
                      Priority,
                      Description,
                      Deadline };
     enum SortFilter{ Category =1,
                      OnlyOverDue= 2,
                      DoNotShowCompleted =4  };
     /**
      * if you use 0l
      * the default resource will be
      * picked up
      */
     OTodoAccess( OTodoAccessBackend* = 0l, enum Access acc = Random );
     ~OTodoAccess();
 
 
     /* our functions here */
     /**
      * include todos from start to end
      * includeNoDates whether or not to include
      * events with no dates
      */
     List effectiveToDos( const QDate& start,
                          const QDate& end,
                          bool includeNoDates = true );
 
     /**
      * start
      * end date taken from the currentDate()
      */
     List effectiveToDos( const QDate& start,
                          bool includeNoDates = true );
 
 
     /**
      * return overdue OTodos
      */
     List overDue();
 
     /**
      *
      */
     List sorted( bool ascending, int sortOrder, int sortFilter, int cat );
 
     /**
      * merge a list of OTodos into
      * the resource
      */
     void mergeWith( const QValueList<OTodo>& );
 
     /**
      * delete all already completed items
      */
     void removeAllCompleted();
 
+    /**
+     * request information about what a backend supports.
+     * Supports in the sense of beeing able to store.
+     * This is related to the enum in OTodo
+     *
+     * @param backend Will be used in the future when we support multiple backend
+     */
+    QBitArray backendSupport( const QString& backend = QString::null )const;
+
+    /**
+     * see above but for a specefic attribute. This method was added for convience
+     * @param attr The attribute to be queried for
+     * @param backend Will be used in the future when we support multiple backends
+     */
+    bool backendSupports( int attr, const QString& backend = QString::null  )const;
 signals:
     /**
      * if the OTodoAccess was changed
      */
     void changed( const OTodoAccess* );
     void changed( const OTodoAccess*, int uid );
     void added( const OTodoAccess*,  int uid );
     void removed( const OTodoAccess*, int uid );
 private:
     int m_cat;
     OTodoAccessBackend* m_todoBackEnd;
     class OTodoAccessPrivate;
     OTodoAccessPrivate* d;
 };
 
 #endif