private void DeleteCurrentSelection()
{
foreach (Connection connection in SelectionService.CurrentSelection.OfType <Connection>())
{
this.Children.Remove(connection);
}
foreach (DesignerItem item in SelectionService.CurrentSelection.OfType <DesignerItem>())
{
Control cd = item.Template.FindName("PART_ConnectorDecorator", item) as Control;
List <Connector> connectors = new List <Connector>();
GetConnectors(cd, connectors);
foreach (Connector connector in connectors)
{
foreach (Connection con in connector.Connections)
{
this.Children.Remove(con);
}
}
this.Children.Remove(item);
}
SelectionService.ClearSelection();
UpdateZIndex();
}
protected override void OnPreviewMouseDown(MouseButtonEventArgs e)//显示图元属性窗口
{
base.OnPreviewMouseDown(e);
if (_DClearPopup != null)
{
_DClearPopup();
}
var item = e.Source as DesignerContainer;
if (item != null)
{
SelectContainer(item);//选择了控件并且显示属性窗口
//e.Handled = true;
}
else if (Equals(e.Source, this))
{
_rubberbandSelectionStartPoint = e.GetPosition(this);
SelectionService.ClearSelection();
var pv = FindName("pv") as PropertyView;
if (pv != null)
{
pv.InitProView();
}
Focus();
e.Handled = true;
}
}
private void UpdateSelection()
{
selectionService.ClearSelection();
Vector2 min = selectionBox.anchoredPosition - (selectionBox.sizeDelta / 2);
Vector2 max = selectionBox.anchoredPosition + (selectionBox.sizeDelta / 2);
var selectables = FindObjectsOfType <SelectableObject>();
foreach (SelectableObject selectable in selectables)
{
Vector3 screenPos = Camera.main.WorldToScreenPoint(selectable.transform.position);
if (screenPos.x > min.x && screenPos.x < max.x && screenPos.y > min.y && screenPos.y < max.y)
{
selectable.Select();
}
}
}
private void Print_Executed(object sender, ExecutedRoutedEventArgs e)
{
SelectionService.ClearSelection();
PrintDialog printDialog = new PrintDialog();
if (true == printDialog.ShowDialog())
{
printDialog.PrintVisual(this, "WPF Diagram");
}
}
protected override void OnMouseDown(MouseButtonEventArgs e)
{
base.OnMouseDown(e);
if (e.Source == this)
{
// in case that this click is the start of a
// drag operation we cache the start point
this.rubberbandSelectionStartPoint = new Point?(e.GetPosition(this));
// if you click directly on the canvas all
// selected items are 'de-selected'
SelectionService.ClearSelection();
Focus();
e.Handled = true;
}
}
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);
}
