private void UpdateRotation()
{
double num = this.unsnappedAngle;
if (this.snapping)
{
num = this.SnapToAngle(this.unsnappedAngle, BrushRotateBehavior.shiftSnapAngle);
}
Point relativeBrushCenter = this.ActiveAdorner.RelativeBrushCenter;
CanonicalTransform transform = new CanonicalTransform(this.initialBrushTransform);
transform.UpdateCenter(relativeBrushCenter);
transform.ApplyRotation(num - this.initialBrushTransform.RotationAngle, relativeBrushCenter);
this.SetBrushTransform(transform);
}
protected override void ApplyRotation(double angle)
{
Point point1 = this.initialElementSetCenter;
angle -= this.initialSharedTransform.RotationAngle;
this.ActiveView.AdornerLayer.FirePropertyChanged("RotateBoundingBoxAdornerRotationAngle", (object)angle);
foreach (SceneElement element in this.EditingElementSet.Elements)
{
if (!(element.GetComputedValueAsWpf(Base2DElement.RenderTransformProperty) is Transform))
{
Transform identity = Transform.Identity;
}
Matrix matrix = this.elementsToElement[element];
Point elementCoordinates = ((Base2DElement)element).RenderTransformOriginInElementCoordinates;
Point point2 = point1 * matrix;
point2 = new Point(point2.X - elementCoordinates.X, point2.Y - elementCoordinates.Y);
Point fixedPoint = RoundingHelper.RoundPosition(point2);
CanonicalTransform newTransform = (CanonicalTransform)this.initialTransforms[element].Clone();
newTransform.ApplyRotation(angle, fixedPoint);
AdornedToolBehavior.UpdateElementTransform(element, newTransform, AdornedToolBehavior.TransformPropertyFlags.Translation | AdornedToolBehavior.TransformPropertyFlags.RotatationAngle);
}
if (this.EditingElementSet.HasHomogeneousRotation)
{
return;
}
this.EditingElementSet.Update();
this.UpdateEditTransaction();
this.EditingElement.ViewModel.DefaultView.UpdateLayout();
Vector vector1 = this.initialArtboardOrigin - this.EditingElement.DesignerContext.ActiveView.Artboard.ArtboardBounds.TopLeft;
Rect bounds = this.EditingElementSet.Bounds;
Rect rect = this.initialBounds;
Point point3 = new Point(0.0, 0.0);
Vector vector2 = this.initialBounds.TopLeft + new Point(this.intialRenderTransformOrigin.X * rect.Width, this.intialRenderTransformOrigin.Y * rect.Height) - point3 - bounds.TopLeft + vector1;
vector2.X /= bounds.Width;
vector2.Y /= bounds.Height;
this.EditingElementSet.RenderTransformOrigin = RoundingHelper.RoundPosition(point3 + vector2);
}