Пример #1
0
 /// <summary>
 /// To ensure connection didn't happen twice it first checks if
 /// adaptor with that object already exists.
 /// If Adaptor with this object specified as Target is already
 /// present then object was connected already anyway
 /// </summary>
 /// <param name="aObject">
 /// Object being connected <see cref="System.Object"/>
 /// </param>
 /// <remarks>
 /// If object being connected to is type of PropertyChangedEventHandler
 /// then connection to PropertyChanged happens, otherwise it
 /// connects to all PropertyChangedEventHandler properties
 /// </remarks>
 public static void ConnectEvent(object aObject)
 {
     if (aObject == null)
     {
         return;
     }
     if (DataSourceController.CountDataSourceOwners(aObject) > 1)
     {
         return;
     }
     if (aObject is INotifyPropertyChanged)
     {
         (aObject as INotifyPropertyChanged).PropertyChanged += OnObjectPropertyChanged;
     }
     else
     {
         // Connect to all PropertyChangedEventHandler properties
         foreach (EventInfo ev in aObject.GetType().GetEvents())
         {
             if (ev.EventHandlerType is PropertyChangedEventHandler)
             {
                 ev.AddEventHandler(aObject, OnObjectPropertyChanged);
             }
         }
     }
 }
Пример #2
0
        /// <summary>
        /// Disconect only happens if only one Adaptor has this object
        /// specified as Target.
        /// If not then connection is still valid
        /// </summary>
        /// <param name="aObject">
        /// Object being diconnected <see cref="System.Object"/>
        /// </param>
        /// <remarks>
        /// If object being disconnected from is type of PropertyChangedEventHandler
        /// then disconnection from PropertyChanged happens, otherwise it
        /// disconnects from all PropertyChangedEventHandler properties
        /// </remarks>
        public static void DisconnectEvent(object aObject)
        {
            if (aObject == null)
            {
                return;
            }
            if (DataSourceController.CountDataSourceOwners(aObject) > 1)
            {
                return;
            }
            if (aObject is INotifyPropertyChanged)
            {
                (aObject as INotifyPropertyChanged).PropertyChanged -= OnObjectPropertyChanged;
            }
            else
            {
                // Disconnect from all PropertyChangedEventHandler properties
                foreach (EventInfo ev in aObject.GetType().GetEvents())
                {
                    if (ev.EventHandlerType is PropertyChangedEventHandler)
                    {
//						ev.RemoveEventHandler (aObject, new PropertyChangedEventHandler(ObjectPropertyChanged));
                        ev.RemoveEventHandler(aObject, OnObjectPropertyChanged);
                    }
                }
            }
        }
Пример #3
0
        /// <summary>
        /// Assigns data or disqualifies validity if needed
        /// </summary>
        public void CheckControl()
        {
            if (destroyed == true)
            {
                return;
            }
            if (Activated == false)
            {
                return;
            }
            if (checkup == true)
            {
                return;
            }
            if (IsControllingWidget == false)
            {
                return;
            }
            checkup = true;
            bool canuse = adaptor.IsValidMapping;

            IObserveable observer         = null;
            IObserveable boundaryobserver = null;

            if (Adaptor != null)
            {
                observer = DataSourceController.GetInfoFor(Adaptor.FinalTarget);
            }
            if (Adaptor != null)
            {
                boundaryobserver = DataSourceController.GetInfoFor(BoundaryAdaptor.FinalTarget);
            }
            if ((canuse == true) && (Control != null))
            {
                if (Control is IChangeableControl)
                {
                    if (observer != null)
                    {
                        if (observer.CanGet == true)
                        {
                            InvokeAdapteeDataChange((Control as IChangeableControl), Adaptor.FinalTarget);
                        }
                    }
                    if (boundaryobserver != null)
                    {
                        if (boundaryobserver.CanGet == true)
                        {
                            if (TypeValidator.IsCompatible(Control.GetType(), typeof(IBoundedContainer)) == true)
                            {
                                InvokeBoundaryDataChange((Control as IBoundedContainer), this);
                            }
                        }
                    }
                }
            }
            observer         = null;
            boundaryobserver = null;
            checkup          = false;
        }
Пример #4
0
 /// <summary>
 /// Executes notification ReloadObject in Triggers engine
 /// </summary>
 /// <param name="aObject">
 /// DataSource Object which was subject to event <see cref="System.Object"/>
 /// </param>
 /// <param name="aChangedBy">
 /// Object that caused the event, this client will avoid update <see cref="System.Object"/>
 /// </param>
 public static void ReloadObjectNotification(object aObject, object aChangedBy)
 {
     if (aObject == null)
     {
         return;
     }
     DataSourceController.PostRequest(aObject);
 }
Пример #5
0
        /// <summary>
        /// Checks if Get request is possible in this moment
        /// </summary>
        /// <param name="aState">
        /// State <see cref="EObserveableState"/>
        /// </param>
        /// <returns>
        /// true if successful <see cref="System.Boolean"/>
        /// </returns>
        public bool SetState(EObserveableState aState)
        {
            IObserveable observer = DataSourceController.GetInfoFor(adaptor.FinalTarget);

            if (observer == null)
            {
                return(false);
            }
            bool res = observer.SetState(aState);

            observer = null;
            return(res);
        }
Пример #6
0
        /// <summary>
        /// Assigns Value in given direction between Control and DataSource Target
        /// </summary>
        /// <param name="aDirection">
        /// Direction of data <see cref="EDataDirection"/>
        /// </param>
        /// <param name="aObject">
        /// Object which contains data <see cref="System.Object"/>
        /// </param>
        /// <param name="aControl">
        /// Control used to edit <see cref="System.Object"/>
        /// </param>
        /// <returns>
        /// Returns true if successful <see cref="System.Boolean"/>
        /// </returns>
        public bool AssignValueToObject(EDataDirection aDirection, object aObject, object aControl)
        {
            bool res = false;

            // Check if
            if (IsGlobal == true)
            {
                if (aDirection == EDataDirection.FromControlToDataSource)
                {
                    throw new ExceptionGlobalMappingAssignedFromControlToTarget();
                }

#if NEWCACHE
                if (dataCache == null)
                {
                    dataCache = new CachedProperty(Adaptor.FinalTarget, Name);
                }
                if (controlCache == null)
                {
                    controlCache = new CachedProperty(aControl, MappingTarget);
                }
                if (controlCache.IsCached == true)
                {
                    object val;
                    if (dataCache.IsCached == true)
                    {
                        if (dataCache.GetValue(out val) == true)
                        {
                            if (controlCache.SetValue(val) == true)
                            {
                                val = null;
                                return(true);
                            }
                        }
                    }
                }
                return(false);
#endif
#if OLDCACHE
                object FromObject   = aObject;
                object ToObject     = aControl;
                string FromProperty = Name;
                string ToProperty   = MappingTarget;

                // assign, direction is already correct
                res        = ConnectionProvider.CopyPropertyValue(FromObject, FromProperty, ToObject, ToProperty);
                FromObject = null;
                ToObject   = null;
                return(res);
#endif
            }
            else
            {
#if NEWCACHE
                CachedProperty FromObject;
                CachedProperty ToObject;
                bool           canbedone;
                if (aDirection == EDataDirection.FromControlToDataSource)
                {
                    FromObject = controlCache;
                    ToObject   = dataCache;
                    canbedone  = AllowedToWrite;
                    if (ToObject is IObserveable)
                    {
                        (ToObject as IObserveable).ResetChangeCallCheckup();
                    }
                }
                else
                {
                    FromObject = dataCache;
                    ToObject   = controlCache;
                    canbedone  = AllowedToRead;
                }

                if (controlCache == null)
                {
                    controlCache = new CachedProperty(aControl, MappingTarget);
                }

                object val = null;
                // assign in set direction
                if ((canbedone == true) && (FromObject != null) && (ToObject != null))
                {
                    if (FromObject.GetValue(out val) == true)
                    {
                        if (ToObject.SetValue(val) == true)
                        {
                            if (aDirection == EDataDirection.FromControlToDataSource)
                            {
                                if ((ToObject is IObserveable) == false)
                                {
                                    DataSourceController.CallChangedFor(ToObject);
                                }
                                else
                                if ((ToObject as IObserveable).HasCalledForChange == false)
                                {
                                    (ToObject as IObserveable).HasChanged = true;
                                }
                            }
                        }
                        res = true;
                    }
                }
                FromObject = null;
                ToObject   = null;
                return(res);
#endif
#if OLDCACHE
                object FromObject;
                object ToObject;
                string FromProperty;
                string ToProperty;
                bool   canbedone;
                // swap direction if needed
                if (aDirection == EDataDirection.FromControlToDataSource)
                {
                    FromObject   = aControl;
                    ToObject     = aObject;
                    FromProperty = MappingTarget;
                    ToProperty   = Name;
                    canbedone    = AllowedToWrite;
                    if (ToObject is IObserveable)
                    {
                        (ToObject as IObserveable).ResetChangeCallCheckup();
                    }
                }
                else
                {
                    FromObject   = aObject;
                    ToObject     = aControl;
                    FromProperty = Name;
                    ToProperty   = MappingTarget;
                    canbedone    = AllowedToRead;
                }

                // assign in set direction
                if (canbedone == true)
                {
                    if (ConnectionProvider.CopyPropertyValue(FromObject, FromProperty, ToObject, ToProperty) == true)
                    {
                        if (aDirection == EDataDirection.FromControlToDataSource)
                        {
                            if ((ToObject is IObserveable) == false)
                            {
                                DataSourceController.CallChangedFor(ToObject);
                            }
                            else
                            if ((ToObject as IObserveable).HasCalledForChange == false)
                            {
                                (ToObject as IObserveable).HasChanged = true;
                            }
                        }
                        res = true;
                    }
//					else
//						Debug.Warning ("MappedProperty.AssignValueToObject", "CopyPropertyValue not successful");
                }
                FromObject = null;
                ToObject   = null;
                return(res);
#endif
            }
        }
Пример #7
0
        /// <summary>
        /// gets value from referenced Target
        /// </summary>
        /// <param name="aValue">
        /// Value to set <see cref="System.Object"/>
        /// </param>
        public void SetValue(object aValue)
        {
#if NEWCACHE
            if (Adaptor.FinalTarget is IObserveable)
            {
                (Adaptor.FinalTarget as IObserveable).ResetChangeCallCheckup();
            }

            if (Resolve() == true)
            {
                if (dataCache.SetValue(Adaptor.FinalTarget, Name, aValue) == true)
                {
                    if ((Adaptor.FinalTarget is IObserveable) == false)
                    {
                        DataSourceController.CallChangedFor(Adaptor.FinalTarget);
                    }
                    else
                    if ((Adaptor.FinalTarget as IObserveable).HasCalledForChange == false)
                    {
                        (Adaptor.FinalTarget as IObserveable).HasChanged = true;
                    }
                }
            }
#endif
#if OLDCACHE
            if (cached == false)
            {
                Name = name;
            }
            if ((cached == false) && (Adaptor.InheritedTarget == false))
            {
                return;
            }
            if (cached == false)
            {
                if (Adaptor.InheritedTarget == true)
                {
                    if (Resolve() == false)
                    {
                        return;
                    }
                }
                else
                {
                    return;
                }
            }

            if (Adaptor.FinalTarget is IObserveable)
            {
                (Adaptor.FinalTarget as IObserveable).ResetChangeCallCheckup();
            }

            if (ConnectionProvider.SetPropertyValue(Adaptor.FinalTarget, Info, aValue) == true)
            {
                if ((Adaptor.FinalTarget is IObserveable) == false)
                {
                    DataSourceController.CallChangedFor(Adaptor.FinalTarget);
                }
                else
                if ((Adaptor.FinalTarget as IObserveable).HasCalledForChange == false)
                {
                    (Adaptor.FinalTarget as IObserveable).HasChanged = true;
                }
            }
#endif
        }
Пример #8
0
        /// <summary>
        /// Valid for complex controls like TreeView
        /// </summary>

/*		public virtual void ClearBeforeRemapping()
 *              {
 *                      if (Control is IComplexAdaptableControl)
 *                              (Control as IComplexAdaptableControl).ClearBeforeRemapping();
 *              }
 *
 *              /// <summary>
 *              /// Valid for complex controls like TreeView
 *              /// </summary>
 *              public virtual void RemapControl()
 *              {
 *                      if (Control is IComplexAdaptableControl)
 *                              (Control as IComplexAdaptableControl).RemapControl();
 *              }*/

        /// <summary>
        /// Sets method of DataSource update
        /// </summary>
        /// <param name="aMethod">
        /// Method of update <see cref="EApplyMethod"/>
        /// </param>
        /// <returns>
        /// true if succeessful <see cref="System.Boolean"/>
        /// </returns>
        public bool DataSourceNeedsUpdateOn(EApplyMethod aMethod)
        {
            return(DataSourceController.DataSourceNeedsUpdateOn(adaptor.FinalTarget, aMethod));
        }