private DesignerItem DeserializeDesignerItem(XElement itemXML, Guid id, double OffsetX, double OffsetY)
{
JavaScriptSerializer serial = new JavaScriptSerializer();
DesignerItem item = GetNewDesignerItem(id); //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.SetContent(content);
try
{
if (itemXML.Attribute("Tag") != null)
{
item.Tag = itemXML.Attribute("Tag").Value;
}
}
catch (Exception) { }
return(item);
}
protected override void OnDrop(DragEventArgs e)
{
base.OnDrop(e);
DragObject dragObject = e.Data.GetData(typeof(DragObject)) as DragObject;
if (dragObject != null && !String.IsNullOrEmpty(dragObject.Xaml))
{
DesignerItem newItem = null;
Object content = XamlReader.Load(XmlReader.Create(new StringReader(dragObject.Xaml)));
if (content != null)
{
newItem = GetNewDesignerItem(Guid.NewGuid());
newItem.SetContent(content);
Point position = e.GetPosition(this);
if (dragObject.DesiredSize.HasValue)
{
Size desiredSize = dragObject.DesiredSize.Value;
newItem.Width = desiredSize.Width;
newItem.Height = desiredSize.Height;
DesignerCanvas.SetLeft(newItem, Math.Max(0, position.X - newItem.Width / 2));
DesignerCanvas.SetTop(newItem, Math.Max(0, position.Y - newItem.Height / 2));
}
else
{
DesignerCanvas.SetLeft(newItem, Math.Max(0, position.X));
DesignerCanvas.SetTop(newItem, Math.Max(0, position.Y));
}
Canvas.SetZIndex(newItem, this.Children.Count);
this.Children.Add(newItem);
SetConnectorDecoratorTemplate(newItem);
//update selection
this.SelectionService.SelectItem(newItem);
newItem.Focus();
}
e.Handled = true;
}
}
protected DesignerItem DisplayBlock(UIElement block, object tag)
{
DesignerItem newItem = GetNewDesignerItem(Guid.NewGuid());
newItem.SetContent(block);
newItem.Tag = tag;
newItem.Renderer.Text = tag != null?tag.ToString() : newItem.Renderer.Text + newItem.ID;
newItem.Edition += new DesignerItem.RoutedEventHandler(onEdit);
Point p = Mouse.GetPosition(this);
var n = Scale + 1;
newItem.Width = DesignerItem.BlockWidth * n;
newItem.Height = DesignerItem.BlockHeight * n;
if (point != null && point.HasValue)
{
DesignerCanvas.SetLeft(newItem, Math.Max(0, p.X));
DesignerCanvas.SetTop(newItem, Math.Max(0, p.Y));
}
else
{
DesignerCanvas.SetLeft(newItem, Math.Max(0, p.X - newItem.Width / 2));
DesignerCanvas.SetTop(newItem, Math.Max(0, p.Y - newItem.Height / 2));
}
Canvas.SetZIndex(newItem, this.Children.Count);
this.Children.Add(newItem);
SetConnectorDecoratorTemplate(newItem);
this.SelectionService.SelectItem(newItem);
newItem.Focus();
return(newItem);
}