private void RestoreDiagramFromXElement(XElement root)
{
if (root == null)
{
return;
}
this.Children.Clear();
this.SelectionService.ClearSelection();
IEnumerable <XElement> itemsXML = root.Elements("DesignerItems").Elements("DesignerItem");
foreach (XElement itemXML in itemsXML)
{
Guid id = new Guid(itemXML.Element("ID").Value);
DesignerItem item = DeserializeDesignerItem(itemXML, id, 0, 0);
this.Children.Add(item);
SetConnectorDecoratorTemplate(item);
if ((item.Content is ContentControl conCtrl) &&
(conCtrl.Tag is ToolboxItemSettings toolboxItemSettings))
{
item.NoDelete = toolboxItemSettings.NoDelete;
item.Proportional = toolboxItemSettings.Proportional;
var typePropertiesOwner =
BuilderTypePropertiesOwner.CompileResultType(toolboxItemSettings.Properties, item.ID.ToString());
item.PropertiesHandler = Activator.CreateInstance(typePropertiesOwner);
item.SetPropertiesValues(toolboxItemSettings.Properties);
}
}
this.InvalidateVisual();
IEnumerable <XElement> connectionsXML = root.Elements("Connections").Elements("Connection");
foreach (XElement connectionXML in connectionsXML)
{
Guid sourceID = new Guid(connectionXML.Element("SourceID").Value);
Guid sinkID = new Guid(connectionXML.Element("SinkID").Value);
String sourceConnectorName = connectionXML.Element("SourceConnectorName").Value;
String sinkConnectorName = connectionXML.Element("SinkConnectorName").Value;
Connector sourceConnector = GetConnector(sourceID, sourceConnectorName);
Connector sinkConnector = GetConnector(sinkID, sinkConnectorName);
Connection connection = new Connection(sourceConnector, sinkConnector);
Canvas.SetZIndex(connection, Int32.Parse(connectionXML.Element("zIndex").Value));
this.Children.Add(connection);
}
}
private Connector GetConnector(Guid itemID, String connectorName)
{
DesignerItem designerItem = (from item in Enumerable.OfType <DesignerItem>(this.Children)
where item.ID == itemID
select item).FirstOrDefault();
Control connectorDecorator = designerItem.Template.FindName("PART_ConnectorDecorator", designerItem) as Control;
connectorDecorator.ApplyTemplate();
return(connectorDecorator.Template.FindName(connectorName, connectorDecorator) as Connector);
}
internal DesignerItem GetSelectedDesignItem()
{
DesignerItem selectedItem = null;
foreach (var selectable in CurrentSelection)
{
if (selectable is DesignerItem designerItem)
{
selectedItem = designerItem;
}
}
return(selectedItem);
}
private static DesignerItem DeserializeDesignerItem(XElement itemXML, Guid id, double OffsetX, double OffsetY)
{
DesignerItem item = new DesignerItem(id);
item.Width = Double.Parse(itemXML.Element("Width").Value, CultureInfo.InvariantCulture);
item.Height = Double.Parse(itemXML.Element("Height").Value, CultureInfo.InvariantCulture);
item.ParentID = new Guid(itemXML.Element("ParentID").Value);
item.IsGroup = Boolean.Parse(itemXML.Element("IsGroup").Value);
Canvas.SetLeft(item, Double.Parse(itemXML.Element("Left").Value, CultureInfo.InvariantCulture) + OffsetX);
Canvas.SetTop(item, Double.Parse(itemXML.Element("Top").Value, CultureInfo.InvariantCulture) + OffsetY);
Canvas.SetZIndex(item, Int32.Parse(itemXML.Element("zIndex").Value));
Object content = XamlReader.Load(XmlReader.Create(new StringReader(itemXML.Element("Content").Value)));
item.Content = content;
return(item);
}
private void CopyCurrentSelection()
{
IEnumerable <DesignerItem> selectedDesignerItems =
Enumerable.OfType <DesignerItem>(this.SelectionService.CurrentSelection);
List <Connection> selectedConnections =
Enumerable.OfType <Connection>(this.SelectionService.CurrentSelection).ToList();
foreach (Connection connection in Enumerable.OfType <Connection>(this.Children))
{
if (!selectedConnections.Contains(connection))
{
DesignerItem sourceItem = (from item in selectedDesignerItems
where item.ID == connection.Source.ParentDesignerItem.ID
select item).FirstOrDefault();
DesignerItem sinkItem = (from item in selectedDesignerItems
where item.ID == connection.Sink.ParentDesignerItem.ID
select item).FirstOrDefault();
if (sourceItem != null &&
sinkItem != null &&
BelongToSameGroup(sourceItem, sinkItem))
{
selectedConnections.Add(connection);
}
}
}
XElement designerItemsXML = SerializeDesignerItems(selectedDesignerItems);
XElement connectionsXML = SerializeConnections(selectedConnections);
XElement root = new XElement("Root");
root.Add(designerItemsXML);
root.Add(connectionsXML);
root.Add(new XAttribute("OffsetX", 10));
root.Add(new XAttribute("OffsetY", 10));
Clipboard.Clear();
Clipboard.SetData(DataFormats.Xaml, root);
}
private void Paste_Executed(object sender, ExecutedRoutedEventArgs e)
{
XElement root = LoadSerializedDataFromClipBoard();
if (root == null)
{
return;
}
// create DesignerItems
Dictionary <Guid, Guid> mappingOldToNewIDs = new Dictionary <Guid, Guid>();
List <ISelectable> newItems = new List <ISelectable>();
IEnumerable <XElement> itemsXML = root.Elements("DesignerItems").Elements("DesignerItem");
double offsetX = Double.Parse(root.Attribute("OffsetX").Value, CultureInfo.InvariantCulture);
double offsetY = Double.Parse(root.Attribute("OffsetY").Value, CultureInfo.InvariantCulture);
foreach (XElement itemXML in itemsXML)
{
Guid oldID = new Guid(itemXML.Element("ID").Value);
Guid newID = Guid.NewGuid();
mappingOldToNewIDs.Add(oldID, newID);
DesignerItem item = DeserializeDesignerItem(itemXML, newID, offsetX, offsetY);
this.Children.Add(item);
SetConnectorDecoratorTemplate(item);
newItems.Add(item);
}
// update group hierarchy
SelectionService.ClearSelection();
foreach (DesignerItem el in newItems)
{
if (el.ParentID != Guid.Empty)
{
el.ParentID = mappingOldToNewIDs[el.ParentID];
}
}
foreach (DesignerItem item in newItems)
{
if (item.ParentID == Guid.Empty)
{
SelectionService.AddToSelection(item);
}
}
// create Connections
IEnumerable <XElement> connectionsXML = root.Elements("Connections").Elements("Connection");
foreach (XElement connectionXML in connectionsXML)
{
Guid oldSourceID = new Guid(connectionXML.Element("SourceID").Value);
Guid oldSinkID = new Guid(connectionXML.Element("SinkID").Value);
if (mappingOldToNewIDs.ContainsKey(oldSourceID) && mappingOldToNewIDs.ContainsKey(oldSinkID))
{
Guid newSourceID = mappingOldToNewIDs[oldSourceID];
Guid newSinkID = mappingOldToNewIDs[oldSinkID];
String sourceConnectorName = connectionXML.Element("SourceConnectorName").Value;
String sinkConnectorName = connectionXML.Element("SinkConnectorName").Value;
Connector sourceConnector = GetConnector(newSourceID, sourceConnectorName);
Connector sinkConnector = GetConnector(newSinkID, sinkConnectorName);
Connection connection = new Connection(sourceConnector, sinkConnector);
Canvas.SetZIndex(connection, Int32.Parse(connectionXML.Element("zIndex").Value));
this.Children.Add(connection);
SelectionService.AddToSelection(connection);
}
}
DesignerCanvas.BringToFront.Execute(null, this);
// update paste offset
root.Attribute("OffsetX").Value = (offsetX + 10).ToString();
root.Attribute("OffsetY").Value = (offsetY + 10).ToString();
Clipboard.Clear();
Clipboard.SetData(DataFormats.Xaml, root);
}
private ContentControl CreateNewToolboxItem(ToolboxSettings toolboxSettings, ToolboxItemSettings itemsSetting)
{
var newItem = new ContentControl {
Tag = itemsSetting, ToolTip = itemsSetting.DisplayName
};
var stackPanel = new StackPanel {
Orientation = Orientation.Horizontal
};
var newGrid = new Grid();
var newPath = new Path {
Style = itemsSetting.PathStyle /*, ToolTip = itemsSetting.DisplayName*/
};
newGrid.Children.Add(newPath);
if (toolboxSettings.ToolboxGridType == ToolboxGrid.Grid)
{
newItem.Content = newGrid;
}
else
{
newGrid.Width = 25;
stackPanel.Children.Add(newGrid);
stackPanel.Children.Add(new TextBlock
{
Text = itemsSetting.DisplayName,
VerticalAlignment = VerticalAlignment.Center,
Margin = new Thickness(10, 0, 0, 0)
});
newItem.Content = stackPanel;
}
if (itemsSetting.PathStyle_DragThumb != null)
{
var controlTemplate = new ControlTemplate();
var pathTemplate = new FrameworkElementFactory(typeof(Path));
pathTemplate.SetValue(Path.StyleProperty, itemsSetting.PathStyle_DragThumb);
controlTemplate.VisualTree = pathTemplate;
DesignerItem.SetDragThumbTemplate(newItem, controlTemplate);
}
if (itemsSetting.Container != null)
{
var bindingLeft = new Binding("ActualWidth");
bindingLeft.Source = newGrid;
var bindingTop = new Binding("ActualHeight");
bindingTop.Source = newGrid;
var multiBinding = new MultiBinding();
multiBinding.Bindings.Add(bindingLeft);
multiBinding.Bindings.Add(bindingTop);
multiBinding.Converter = new RelativeMarginToMarginConverter(itemsSetting.Container.RelativeMargin);
var button = new Button {
Content = new TextBlock
{
Text = Properties.Resources.ClickToOpen,
TextWrapping = TextWrapping.Wrap,
HorizontalAlignment = HorizontalAlignment.Center,
Visibility = Visibility.Collapsed
}
};
button.SetBinding(TextBlock.MarginProperty, multiBinding);
newGrid.Children.Add(button);
}
if (itemsSetting.ConnectorsSettings != null)
{
var controlTemplate = new ControlTemplate();
var relPanelTemplate = new FrameworkElementFactory(typeof(RelativePositionPanel));
relPanelTemplate.SetValue(RelativePositionPanel.MarginProperty, new Thickness(-4));
if (itemsSetting.ConnectorsSettings.Any())
{
foreach (var connectorsSetting in itemsSetting.ConnectorsSettings)
{
var connectorTemplate = new FrameworkElementFactory(typeof(Connector));
connectorTemplate.SetValue(Connector.NameProperty, connectorsSetting.Name);
connectorTemplate.SetValue(Connector.OrientationProperty,
connectorsSetting.Orientation);
connectorTemplate.SetValue(RelativePositionPanel.RelativePositionProperty,
connectorsSetting.RelativePosition);
connectorTemplate.SetValue(Connector.MaxInConnectionsProperty,
connectorsSetting.MaxInConnections);
connectorTemplate.SetValue(Connector.MaxOutConnectionsProperty,
connectorsSetting.MaxOutConnections);
relPanelTemplate.AppendChild(connectorTemplate);
if (!string.IsNullOrEmpty(connectorsSetting.Caption))
{
var newCaption = new TextBlock {
Text = connectorsSetting.Caption, IsHitTestVisible = false, Tag = connectorsSetting
};
if (connectorsSetting.Orientation == ConnectorOrientation.Left)
{
newCaption.HorizontalAlignment = HorizontalAlignment.Right;
}
if (connectorsSetting.Orientation == ConnectorOrientation.Top)
{
newCaption.VerticalAlignment = VerticalAlignment.Bottom;
}
var bindingLeft = new Binding("ActualWidth");
bindingLeft.Source = newGrid;
var bindingTop = new Binding("ActualHeight");
bindingTop.Source = newGrid;
var multiBinding = new MultiBinding();
multiBinding.Bindings.Add(bindingLeft);
multiBinding.Bindings.Add(bindingTop);
multiBinding.Converter = new SizeToMarginConverter(connectorsSetting.RelativePosition, connectorsSetting.Orientation);
newCaption.SetBinding(TextBlock.MarginProperty, multiBinding);
newGrid.Children.Add(newCaption);
}
}
}
controlTemplate.VisualTree = relPanelTemplate;
DesignerItem.SetConnectorDecoratorTemplate(newItem, controlTemplate);
}
return(newItem);
}