public static ProcessUnitControl CreateOnCanvas(DrawingCanvas canvas,
AbstractProcessUnit processUnit)
{
ProcessUnitControl pu = new ProcessUnitControl(canvas, processUnit);
canvas.AddNewChild(pu);
// Set the initial location
pu.SetValue(Canvas.LeftProperty, processUnit.Location.X - pu.Width / 2.0);
pu.SetValue(Canvas.TopProperty, processUnit.Location.Y - pu.Height / 2.0);
// Make sure we have the right z-order
pu.SetValue(Canvas.ZIndexProperty, 1);
return(pu);
}
public static StickyNoteControl CreateOnCanvas(DrawingCanvas canvas,
StickyNote memNote, object commentParentControl)
{
// I'm using a static constructor because this way I can at least choose
// wording that implies that this control will be created AND added to
// the drawing canvas.
// Quick parameter check
if (null == canvas || null == memNote)
{
throw new ArgumentNullException();
}
StickyNoteControl snc = new StickyNoteControl(canvas, memNote);
snc.m_commentParent = commentParentControl;
canvas.AddNewChild(snc);
// Give it a high z-index since we want comments above everything else
snc.SetValue(Canvas.ZIndexProperty, (int)4);
// Setup extra stuff if we have a parent control
if (null != commentParentControl)
{
if (!(commentParentControl is ChemProV.PFD.Streams.StreamControl) &&
!(commentParentControl is ProcessUnitControl))
{
throw new InvalidOperationException(
"The parent element for a comment-sticky-note must be a stream or process unit");
}
// Create the line and add it to the drawing canvas
snc.m_lineToParent = new Line();
canvas.AddNewChild(snc.m_lineToParent);
snc.m_lineToParent.SetValue(Canvas.ZIndexProperty, -3);
snc.m_lineToParent.Stroke = new SolidColorBrush(Color.FromArgb(255, 245, 222, 179));
snc.m_lineToParent.StrokeThickness = 1.0;
// Make sure that when the parent moves we update the line
if (commentParentControl is ProcessUnitControl)
{
(commentParentControl as ProcessUnitControl).ProcessUnit.PropertyChanged +=
snc.ProcessUnitParentPropertyChanged;
}
else
{
(commentParentControl as PFD.Streams.StreamControl).Stream.PropertyChanged +=
snc.StreamParentPropertyChanged;
}
// Position the line to the parent
snc.UpdateLineToParent();
}
// Hide if need be
if (!memNote.IsVisible)
{
snc.Hide();
}
return(snc);
}
