/// <summary>
/// Function determines behaviour after a connector in the tree was clicked with shift pressed. It allows to select items from last selected item to currently selected one.
/// Allows selection between groups.
/// </summary>
/// <param name="connector">Clicked connector.</param>
private void OnShiftProjectClicked(ConnectorViewModel connector)
{
if (this.selectedConnectors.Count == 0)
{
this.OnCtrlProjectClicked(connector);
return;
}
ConnectorViewModel source = connector;
ConnectorViewModel target = this.selectedConnectors.Last();
Collection <ConnectorViewModel> ungroupedConnectors = new Collection <ConnectorViewModel>();
foreach (var group in this.model.ConnectorGroups)
{
foreach (var connectorInGroup in group.ConnectorViewModels)
{
ungroupedConnectors.Add(connectorInGroup);
}
}
if (source.Identifier == target.Identifier)
{
this.SelectConnector(connector);
return;
}
bool select = false;
foreach (var item in ungroupedConnectors)
{
if (item.Identifier == source.Identifier || item.Identifier == target.Identifier)
{
this.SelectConnector(item);
select = !select;
}
else if (select)
{
this.SelectConnector(item);
}
}
}
/// <summary>
/// Defines behaviour when LMB is released.
/// </summary>
/// <param name="sender">sender item.</param>
/// <param name="e">event args.</param>
private void ControlLeftMouseUpHandler(object sender, MouseButtonEventArgs e)
{
TreeViewItem item = (TreeViewItem)sender;
var connector = new ConnectorViewModel();
if (item == null)
{
return;
}
if (item.Header is ConnectorViewModel)
{
connector = (ConnectorViewModel)item.Header;
this.DeselectAllConnectors();
this.connectorItemEventFired = true;
this.OnCtrlProjectClicked(connector);
}
else
{
if (this.connectorItemEventFired)
{
this.connectorItemEventFired = false;
}
else
{
var group = new ConnectorGroupViewModel();
if (item.Header is ConnectorGroupViewModel)
{
group = (ConnectorGroupViewModel)item.Header;
this.DeselectAllConnectors();
this.OnGroupClicked(group);
}
}
}
this.model.UpdateSelectedConnectors(this.selectedConnectors);
}
public StatusViewModel(ConnectorViewModel connector)
{
this.Parent = connector;
}
/// <summary>
/// Based on group and connector function generates container from item and calls style set for the generated container.
/// </summary>
/// <param name="connectorGroupViewModel">Group of the connector.</param>
/// <param name="connectorViewModel">Connector to set its style.</param>
private void SetConnectorInGroupStyle(ConnectorGroupViewModel connectorGroupViewModel, ConnectorViewModel connectorViewModel)
{
TreeViewItem groupTreeViewItem = (TreeViewItem)this.mainTreeView.ItemContainerGenerator.ContainerFromItem(connectorGroupViewModel);
var treeViewItemInGroup = (TreeViewItem)groupTreeViewItem?.ItemContainerGenerator.ContainerFromItem(connectorViewModel)
?? (TreeViewItem)this.mainTreeView.ItemContainerGenerator.ContainerFromItem(connectorViewModel);
if (treeViewItemInGroup != null)
{
this.SetStyle(ref treeViewItemInGroup);
}
}
