Example #1
0
        private void LoadPerstistDesignerItems(IDiagramItem wholeDiagramToLoad, IDiagramViewModel diagramViewModel)
        {
            //load diagram items
            foreach (DiagramItemData diagramItemData in wholeDiagramToLoad.DesignerItems)
            {
                if (diagramItemData.ItemType == typeof(PersistDesignerItem))
                {
                    PersistDesignerItem          persistedDesignerItem        = databaseAccessService.FetchPersistDesignerItem(diagramItemData.ItemId);
                    PersistDesignerItemViewModel persistDesignerItemViewModel =
                        new PersistDesignerItemViewModel(persistedDesignerItem.Id, diagramViewModel, persistedDesignerItem.Left, persistedDesignerItem.Top, persistedDesignerItem.ItemWidth, persistedDesignerItem.ItemHeight, persistedDesignerItem.HostUrl);
                    diagramViewModel.Items.Add(persistDesignerItemViewModel);
                }
                if (diagramItemData.ItemType == typeof(SettingsDesignerItem))
                {
                    SettingsDesignerItem          settingsDesignerItem          = databaseAccessService.FetchSettingsDesignerItem(diagramItemData.ItemId);
                    SettingsDesignerItemViewModel settingsDesignerItemViewModel =
                        new SettingsDesignerItemViewModel(settingsDesignerItem.Id, diagramViewModel, settingsDesignerItem.Left, settingsDesignerItem.Top, settingsDesignerItem.ItemWidth, settingsDesignerItem.ItemHeight, settingsDesignerItem.Setting1);
                    diagramViewModel.Items.Add(settingsDesignerItemViewModel);
                }
                if (diagramItemData.ItemType == typeof(GroupDesignerItem))
                {
                    GroupDesignerItem             groupDesignerItem             = databaseAccessService.FetchGroupingDesignerItem(diagramItemData.ItemId);
                    GroupingDesignerItemViewModel groupingDesignerItemViewModel =
                        new GroupingDesignerItemViewModel(groupDesignerItem.Id, diagramViewModel, groupDesignerItem.Left, groupDesignerItem.Top, groupDesignerItem.ItemWidth, groupDesignerItem.ItemHeight);
                    if (groupDesignerItem.DesignerItems != null && groupDesignerItem.DesignerItems.Count > 0)
                    {
                        LoadPerstistDesignerItems(groupDesignerItem, groupingDesignerItemViewModel);
                    }
                    diagramViewModel.Items.Add(groupingDesignerItemViewModel);
                }
            }
            //load connection items
            foreach (int connectionId in wholeDiagramToLoad.ConnectionIds)
            {
                Connection connection = databaseAccessService.FetchConnection(connectionId);

                DesignerItemViewModelBase sourceItem = GetConnectorDataItem(diagramViewModel, connection.SourceId, connection.SourceType);
                ConnectorOrientation      sourceConnectorOrientation = GetOrientationForConnector(connection.SourceOrientation);
                FullyCreatedConnectorInfo sourceConnectorInfo        = GetFullConnectorInfo(connection.Id, sourceItem, sourceConnectorOrientation);

                DesignerItemViewModelBase sinkItem = GetConnectorDataItem(diagramViewModel, connection.SinkId, connection.SinkType);
                ConnectorOrientation      sinkConnectorOrientation = GetOrientationForConnector(connection.SinkOrientation);
                FullyCreatedConnectorInfo sinkConnectorInfo        = GetFullConnectorInfo(connection.Id, sinkItem, sinkConnectorOrientation);

                ConnectorViewModel connectionVM = new ConnectorViewModel(connection.Id, diagramViewModel, sourceConnectorInfo, sinkConnectorInfo);
                diagramViewModel.Items.Add(connectionVM);
            }
        }
Example #2
0
        private void ExecuteGroupCommand(object parameter)
        {
            if (diagramViewModel.SelectedItems.Count > 0)
            {
                // if only one selected item is a Grouping item -> ungroup
                if (diagramViewModel.SelectedItems[0] is GroupingDesignerItemViewModel && diagramViewModel.SelectedItems.Count == 1)
                {
                    GroupingDesignerItemViewModel groupObject = diagramViewModel.SelectedItems[0] as GroupingDesignerItemViewModel;
                    foreach (var item in groupObject.Items)
                    {
                        if (item is DesignerItemViewModelBase)
                        {
                            DesignerItemViewModelBase tmp = (DesignerItemViewModelBase)item;
                            tmp.Top  += groupObject.Top;
                            tmp.Left += groupObject.Left;
                        }
                        diagramViewModel.AddItemCommand.Execute(item);
                        item.Parent = DiagramViewModel;
                    }

                    // "cut" connections between DiagramItems and the Group
                    List <SelectableDesignerItemViewModelBase> GroupedItemsToRemove = new List <SelectableDesignerItemViewModelBase>();
                    foreach (var connector in DiagramViewModel.Items.OfType <ConnectorViewModel>())
                    {
                        if (groupObject == connector.SourceConnectorInfo.DataItem)
                        {
                            GroupedItemsToRemove.Add(connector);
                        }

                        if (groupObject == ((FullyCreatedConnectorInfo)connector.SinkConnectorInfo).DataItem)
                        {
                            GroupedItemsToRemove.Add(connector);
                        }
                    }
                    GroupedItemsToRemove.Add(groupObject);
                    foreach (var selectedItem in GroupedItemsToRemove)
                    {
                        DiagramViewModel.RemoveItemCommand.Execute(selectedItem);
                    }
                }
                else if (diagramViewModel.SelectedItems.Count > 1)
                {
                    double margin = 15;
                    Rect   rekt   = PointHelper.GetBoundingRectangle(diagramViewModel.SelectedItems, margin);

                    GroupingDesignerItemViewModel groupItem = new GroupingDesignerItemViewModel(0, this.diagramViewModel, rekt.Left, rekt.Top);
                    groupItem.ItemWidth  = rekt.Width;
                    groupItem.ItemHeight = rekt.Height;
                    foreach (var item in diagramViewModel.SelectedItems)
                    {
                        if (item is DesignerItemViewModelBase)
                        {
                            DesignerItemViewModelBase tmp = (DesignerItemViewModelBase)item;
                            tmp.Top  -= rekt.Top;
                            tmp.Left -= rekt.Left;
                        }
                        groupItem.Items.Add(item);
                        item.Parent = groupItem;
                    }

                    // "cut" connections between DiagramItems which are going to be grouped and
                    // Diagramitems which are not going to be grouped
                    List <SelectableDesignerItemViewModelBase> GroupedItemsToRemove    = DiagramViewModel.SelectedItems;
                    List <SelectableDesignerItemViewModelBase> connectionsToAlsoRemove = new List <SelectableDesignerItemViewModelBase>();

                    foreach (var connector in DiagramViewModel.Items.OfType <ConnectorViewModel>())
                    {
                        if (ItemsToDeleteHasConnector(GroupedItemsToRemove, connector.SourceConnectorInfo))
                        {
                            connectionsToAlsoRemove.Add(connector);
                        }

                        if (ItemsToDeleteHasConnector(GroupedItemsToRemove, (FullyCreatedConnectorInfo)connector.SinkConnectorInfo))
                        {
                            connectionsToAlsoRemove.Add(connector);
                        }
                    }
                    GroupedItemsToRemove.AddRange(connectionsToAlsoRemove);
                    foreach (var selectedItem in GroupedItemsToRemove)
                    {
                        DiagramViewModel.RemoveItemCommand.Execute(selectedItem);
                    }

                    diagramViewModel.SelectedItems.Clear();
                    this.diagramViewModel.Items.Add(groupItem);
                }
            }
        }