/// <summary>
/// Imports a drawing from xml.
/// </summary>
/// <param name="xElement">Xml element too start searching</param>
/// <param name="clearDrawing">remove all shapes before import</param>
/// <returns>true if all xml element could be loaded, false if unknown (skiped) elements have been found</returns>
/// <remarks>
/// Searches for the 1st DrawingImage, if none is found look for Canvas
/// </remarks>
public bool Import(XElement xElement, bool clearDrawing)
{
if (clearDrawing)
{
ClearDrawing();
}
// look for DrawingImage
var xRoot = (from e in xElement.DescendantsAndSelf("DrawingImage")
select e).FirstOrDefault();
if (xRoot != null)
{
// we need the 1st DrawingGroup
xRoot = (from e in xElement.Descendants("DrawingGroup")
select e).FirstOrDefault();
if (xRoot != null)
{
foreach (var xGD in xRoot.Elements("GeometryDrawing"))
{
XDrawingShape shape = XDrawingShape.LoadFromGeometryDrawing(this, xGD);
if (shape != null)
{
m_Shapes.Add(shape);
Canvas.Children.Insert(Canvas.Children.IndexOf(m_ControlPointPath), shape.Path);
}
}
}
}
else
{
// DrawingImage not found, look for Canvas
xRoot = (from e in xElement.DescendantsAndSelf("Canvas")
select e).FirstOrDefault();
if (xRoot != null)
{
foreach (var xPath in xRoot.Elements("Path"))
{
XDrawingShape shape = XDrawingShape.LoadFromPath(this, xPath);
if (shape != null)
{
m_Shapes.Add(shape);
Canvas.Children.Insert(Canvas.Children.IndexOf(m_ControlPointPath), shape.Path);
}
}
}
}
return(true);
}
private void Paste_Executed(object sender, ExecutedRoutedEventArgs e)
{
if (Clipboard.ContainsText() && Clipboard.GetText().StartsWith("<GeometryDrawing"))
{
try
{
var xaml = Clipboard.GetText();
var xDoc = XDocument.Parse(xaml);
XDrawingShape shape = XDrawingShape.LoadFromGeometryDrawing(this, xDoc.Root);
if (shape != null)
{
m_Shapes.Add(shape);
Canvas.Children.Insert(Canvas.Children.IndexOf(m_ControlPointPath), shape.Path);
SelectedShape = shape;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Exception while pasting");
}
}
}