Rectangle CreateRectForRubberEdge()
{
var rect = new BBox(rubberLineStart, RubberLineEnd);
double w = gViewer.LineThicknessForEditing;
var del = new P2(-w, w);
rect.Add(rect.LeftTop + del);
rect.Add(rect.RightBottom - del);
return(GViewer.CreateScreenRectFromTwoCornersInTheSource(rect.LeftTop, rect.RightBottom));
}
internal void StopDrawingRubberEdge()
{
if (CurrentRubberEdge != null)
{
GViewer.Invalidate(
GViewer.CreateScreenRectFromTwoCornersInTheSource(
CurrentRubberEdge.BoundingBox.LeftTop,
CurrentRubberEdge.BoundingBox.RightBottom));
}
CurrentRubberEdge = null;
}
internal void DrawRubberEdge(EdgeGeometry edgeGeometry)
{
BBox rectToInvalidate = edgeGeometry.BoundingBox;
if (CurrentRubberEdge != null)
{
BBox b = CurrentRubberEdge.BoundingBox;
rectToInvalidate.Add(b);
}
CurrentRubberEdge = edgeGeometry;
GViewer.Invalidate(GViewer.CreateScreenRectFromTwoCornersInTheSource(rectToInvalidate.LeftTop,
rectToInvalidate.RightBottom));
}