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);
}
}
private void ExecuteLoadDiagramCommand(object parameter)
{
IsBusy = true;
DiagramItem wholeDiagramToLoad = null;
if (SavedDiagramId == null)
{
messageBoxService.ShowError("You need to select a diagram to load");
return;
}
Task <DiagramViewModel> task = Task.Factory.StartNew <DiagramViewModel>(() =>
{
//ensure that itemsToRemove is cleared ready for any new changes within a session
itemsToRemove = new List <SelectableDesignerItemViewModelBase>();
DiagramViewModel diagramViewModel = new DiagramViewModel();
wholeDiagramToLoad = databaseAccessService.FetchDiagram((int)SavedDiagramId.Value);
//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.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.Setting1);
diagramViewModel.Items.Add(settingsDesignerItemViewModel);
}
}
//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);
}
return(diagramViewModel);
});
task.ContinueWith((ant) =>
{
this.DiagramViewModel = ant.Result;
IsBusy = false;
messageBoxService.ShowInformation(string.Format("Finished loading Diagram Id : {0}", wholeDiagramToLoad.Id));
}, TaskContinuationOptions.OnlyOnRanToCompletion);
}
