public static void DrawDimension(DrawingContext drawingContext, ElementLayoutAdornerType edge, Matrix matrix, Matrix rootMatrix, Pen pen, Rect bounds, double scale)
{
Point point1;
Point point2;
switch (edge)
{
case ElementLayoutAdornerType.Left:
point1 = bounds.TopLeft;
point2 = bounds.BottomLeft;
break;
case ElementLayoutAdornerType.Top:
point1 = bounds.TopLeft;
point2 = bounds.TopRight;
break;
case ElementLayoutAdornerType.Right:
point1 = bounds.TopRight;
point2 = bounds.BottomRight;
break;
case ElementLayoutAdornerType.Bottom:
point1 = bounds.BottomLeft;
point2 = bounds.BottomRight;
break;
default:
throw new NotSupportedException();
}
double length = ((point2 - point1) * rootMatrix).Length;
Point point3 = bounds.TopLeft + 0.5 * (bounds.BottomRight - bounds.TopLeft);
Point point4 = point1 * matrix;
Point point5 = point2 * matrix;
Point point6 = point3 * matrix;
Vector vector1 = point4 + 0.5 * (point5 - point4) - point6;
vector1.Normalize();
Vector vector2 = point5 - point4;
vector2.Normalize();
Vector overflowDirection = new Vector(vector2.Y, -vector2.X);
if (overflowDirection * vector1 < 0.0)
{
overflowDirection = -overflowDirection;
}
Point point7 = point4 - 0.5 * pen.Thickness * vector2;
Point point8 = point5 + 0.5 * pen.Thickness * vector2;
Vector vector3 = scale * 7.0 * overflowDirection;
Vector vector4 = scale * 22.0 * overflowDirection;
drawingContext.DrawLine(pen, point7 + vector3, point7 + vector4);
drawingContext.DrawLine(pen, point8 + vector3, point8 + vector4);
Point a = point4 + scale * 17.5 * overflowDirection;
Point b = point5 + scale * 17.5 * overflowDirection;
string text = length.ToString("0.###", (IFormatProvider)CultureInfo.CurrentCulture);
SizeAdorner.DrawLineAndText(drawingContext, a, b, overflowDirection, pen, pen.Brush, text, scale);
}
public override void Draw(DrawingContext ctx, Matrix matrix)
{
if (this.Element.ParentElement == null || this.Element.Visual == null)
{
return;
}
Point pointBegin;
Point pointEnd;
this.GetPoints(out pointBegin, out pointEnd);
string text = string.Empty;
if (!this.IsAuto)
{
Matrix computedTransformToRoot = this.DesignerContext.ActiveView.GetComputedTransformToRoot((SceneElement)this.Element);
text = ((pointEnd - pointBegin) * computedTransformToRoot).Length.ToString("0.###", (IFormatProvider)CultureInfo.CurrentCulture);
}
Point a = pointBegin * matrix;
Point b = pointEnd * matrix;
Pen pen1 = this.ThinPen.Clone();
pen1.Brush.Opacity = 0.5;
if (this.IsAuto && VectorUtilities.SquaredDistance(a, b) < 10000000000.0)
{
pen1.DashStyle = ElementLayoutLineAdorner.LineDashStyle;
}
pen1.Freeze();
Vector overflowDirection = b - a;
overflowDirection.Normalize();
SizeAdorner.DrawLineAndText(ctx, a, b, overflowDirection, pen1, this.ActiveBrush, text, 1.0);
if (this.type != ElementLayoutAdornerType.Left)
{
return;
}
Transform transform1 = (Transform)this.Element.GetComputedValueAsWpf(Base2DElement.RenderTransformProperty);
Transform transform2 = (Transform)null;
IPropertyId propertyKey = (IPropertyId)this.Element.ProjectContext.ResolveProperty(BaseFrameworkElement.LayoutTransformProperty);
if (propertyKey != null)
{
transform2 = (Transform)this.Element.GetComputedValueAsWpf(propertyKey);
}
if ((transform1 == null || transform1.Value.IsIdentity) && (transform2 == null || transform2.Value.IsIdentity))
{
return;
}
RectangleGeometry rectangleGeometry = new RectangleGeometry(this.DesignerContext.ActiveSceneViewModel.GetLayoutDesignerForChild((SceneElement)this.Element, true).GetChildRect(this.Element), 0.0, 0.0, (Transform) new MatrixTransform(this.Element.GetComputedTransformFromVisualParent() * matrix));
rectangleGeometry.Freeze();
Pen pen2 = this.ThinPen.Clone();
pen2.Brush.Opacity = 0.5;
pen2.Freeze();
ctx.DrawGeometry((Brush)null, pen2, (System.Windows.Media.Geometry)rectangleGeometry);
}