protected void UpdateAnchor(ClickTargetEnum anchorType, double left, double top)
{
foreach (FrameworkElement r in Anchors)
{
if ((ClickTargetEnum)r.Tag == anchorType)
{
Canvas.SetLeft(r, left);
Canvas.SetTop(r, top);
r.Width = AnchorSize;
r.Height = AnchorSize;
}
}
}
protected FrameworkElement AddAnchor(ClickTargetEnum anchorType, double left, double top)
{
FrameworkElement r;
if (anchorType == ClickTargetEnum.AnchorRightTop_CreateDiagramLine)
{
TextBox l = new TextBox();
l.IsReadOnly = true;
l.Focusable = false;
l.Text = "*";
l.FontSize = 22;
l.FontFamily = new FontFamily("Times New Roman");
l.Padding = new Thickness(-1.8, -3.5, 0, 0);
l.Margin = new Thickness(0);
l.BorderThickness = new Thickness(0);
l.Background = (Brush)FindResource("0SelectionBrush");
l.Foreground = (Brush)FindResource("0BackgroundBrush");
r = l;
}
else
{
r = new Rectangle();
((Rectangle)r).Fill = (Brush)FindResource("0SelectionBrush");
}
Canvas.SetLeft(r, left);
Canvas.SetTop(r, top);
r.Width = AnchorSize;
r.Height = AnchorSize;
r.Tag = anchorType;
Anchors.Add(r);
r.MouseLeftButtonDown += AnchorMouseButtonDown;
switch (anchorType)
{
case ClickTargetEnum.AnchorLeftTop:
r.Cursor = Cursors.SizeNWSE;
break;
case ClickTargetEnum.AnchorMiddleTop:
r.Cursor = Cursors.SizeNS;
break;
case ClickTargetEnum.AnchorRightTop_CreateDiagramLine:
r.Cursor = Cursors.Pen;
break;
case ClickTargetEnum.AnchorLeftMiddle:
r.Cursor = Cursors.SizeWE;
break;
case ClickTargetEnum.AnchorRightMiddle:
r.Cursor = Cursors.SizeWE;
break;
case ClickTargetEnum.AnchorLeftBottom:
r.Cursor = Cursors.SizeNESW;
break;
case ClickTargetEnum.AnchorMiddleBottom:
r.Cursor = Cursors.SizeNS;
break;
case ClickTargetEnum.AnchorRightBottom:
r.Cursor = Cursors.SizeNWSE;
break;
}
Diagram.TheCanvas.Children.Add(r);
return(r);
}