/// <summary>
/// Compute the rectangle in which the elements should be positioned.
/// </summary>
/// <returns>
/// If this panel is in an <see cref="Adornment"/> and is its <see cref="Node.LocationElement"/>,
/// return the <see cref="Adornment.AdornedElement"/>'s size.
/// Otherwise return a <c>Rect</c> based on this first child's <c>DesiredSize</c>.
/// Only the Width and Height of the Rect matter in the calculations performed by
/// <see cref="MeasureOverride"/> and <see cref="ArrangeOverride"/>.
/// </returns>
protected virtual Rect ComputeBorder()
{
Adornment ad = Diagram.FindAncestor <Adornment>(this);
if (ad != null)
{
FrameworkElement elt = ad.AdornedElement;
if (elt != null && this == ad.LocationElement)
{
Size sz = ad.GetEffectiveSize(elt);
if (sz.Width > 0 && sz.Height > 0)
{
return(new Rect(0, 0, sz.Width, sz.Height));
}
}
}
Size s = this.DesiredSize;
foreach (UIElement child in this.Children)
{
s = child.DesiredSize;
break;
}
return(new Rect(0, 0, s.Width, s.Height));
}
private static Geometry GetRenderedGeometry(Shape shape, Adornment ad)
{
Rectangle rectangle = shape as Rectangle;
if (rectangle != null)
{
Size sz = ad.GetEffectiveSize(rectangle);
return(new RectangleGeometry()
{
Rect = new Rect(0, 0, sz.Width, sz.Height), RadiusX = rectangle.RadiusX, RadiusY = rectangle.RadiusY
});
}
Ellipse ellipse = shape as Ellipse;
if (ellipse != null)
{
Size sz = ad.GetEffectiveSize(ellipse);
return(new EllipseGeometry()
{
Center = new Point(sz.Width / 2, sz.Height / 2), RadiusX = sz.Width / 2, RadiusY = sz.Height / 2
});
}
Line line = shape as Line;
if (line != null)
{
return new LineGeometry()
{
StartPoint = new Point(line.X1, line.Y1), EndPoint = new Point(line.X2, line.Y2)
}
}
;
Polyline polyline = shape as Polyline;
if (polyline != null)
{
PathGeometry g = new PathGeometry();
PathFigure pf = new PathFigure();
PolyLineSegment pls = new PolyLineSegment();
pls.Points = Copy(polyline.Points); //?? not returning a Geometry with the actual points
if (polyline.Stretch != Stretch.None)
{
Size sz = ad.GetEffectiveSize(polyline);
pls.Points = ScalePoints(pls.Points, sz, polyline.Stretch);
}
pf.Segments.Add(pls);
if (pls.Points.Count > 0)
{
pf.StartPoint = pls.Points[0];
}
pf.IsClosed = false;
pf.IsFilled = false;
g.Figures.Add(pf);
return(g);
}
Polygon polygon = shape as Polygon;
if (polygon != null)
{
PathGeometry g = new PathGeometry();
PathFigure pf = new PathFigure();
PolyLineSegment pls = new PolyLineSegment();
pls.Points = Copy(polygon.Points); //?? not returning a Geometry with the actual points
if (polygon.Stretch != Stretch.None)
{
Size sz = ad.GetEffectiveSize(polygon);
pls.Points = ScalePoints(pls.Points, sz, polygon.Stretch);
}
pf.Segments.Add(pls);
if (pls.Points.Count > 0)
{
pf.StartPoint = pls.Points[0];
}
pf.IsClosed = true;
pf.IsFilled = true;
g.Figures.Add(pf);
return(g);
}
Path path = shape as Path;
if (path != null)
{
return(Copy(path.Data)); //?? not returning a Geometry with the actual points
}
return(null);
}
private static Geometry GetRenderedGeometry(Shape shape, Adornment ad) {
Rectangle rectangle = shape as Rectangle;
if (rectangle != null) {
Size sz = ad.GetEffectiveSize(rectangle);
return new RectangleGeometry() { Rect = new Rect(0, 0, sz.Width, sz.Height), RadiusX = rectangle.RadiusX, RadiusY = rectangle.RadiusY };
}
Ellipse ellipse = shape as Ellipse;
if (ellipse != null) {
Size sz = ad.GetEffectiveSize(ellipse);
return new EllipseGeometry() { Center = new Point(sz.Width/2, sz.Height/2), RadiusX = sz.Width/2, RadiusY = sz.Height/2 };
}
Line line = shape as Line;
if (line != null) return new LineGeometry() { StartPoint = new Point(line.X1, line.Y1), EndPoint = new Point(line.X2, line.Y2) };
Polyline polyline = shape as Polyline;
if (polyline != null) {
PathGeometry g = new PathGeometry();
PathFigure pf = new PathFigure();
PolyLineSegment pls = new PolyLineSegment();
pls.Points = Copy(polyline.Points); //?? not returning a Geometry with the actual points
if (polyline.Stretch != Stretch.None) {
Size sz = ad.GetEffectiveSize(polyline);
pls.Points = ScalePoints(pls.Points, sz, polyline.Stretch);
}
pf.Segments.Add(pls);
if (pls.Points.Count > 0) pf.StartPoint = pls.Points[0];
pf.IsClosed = false;
pf.IsFilled = false;
g.Figures.Add(pf);
return g;
}
Polygon polygon = shape as Polygon;
if (polygon != null) {
PathGeometry g = new PathGeometry();
PathFigure pf = new PathFigure();
PolyLineSegment pls = new PolyLineSegment();
pls.Points = Copy(polygon.Points); //?? not returning a Geometry with the actual points
if (polygon.Stretch != Stretch.None) {
Size sz = ad.GetEffectiveSize(polygon);
pls.Points = ScalePoints(pls.Points, sz, polygon.Stretch);
}
pf.Segments.Add(pls);
if (pls.Points.Count > 0) pf.StartPoint = pls.Points[0];
pf.IsClosed = true;
pf.IsFilled = true;
g.Figures.Add(pf);
return g;
}
Path path = shape as Path;
if (path != null) return Copy(path.Data); //?? not returning a Geometry with the actual points
return null;
}
