public virtual bool BlockDeleting(Rectangle Rect)
{
bool flag1 = false;
this.BeginUpdate();
try
{
int num1;
if (base.FindLast(new Point(Rect.Right, Rect.Bottom), out num1, this.ptComparer))
{
num1++;
}
for (int num2 = Math.Min(num1, (int)(this.Count - 1)); num2 >= 0; num2--)
{
IRange range1 = (IRange)this[num2];
if (range1.EndPoint.Y < Rect.Top)
{
return(flag1);
}
if (SortList.InsideBlock(range1.StartPoint, Rect) && SortList.InsideBlock(new Point(Math.Max((int)(range1.EndPoint.X - 1), 0), range1.EndPoint.Y), Rect))
{
this.RemoveAt(num2);
flag1 = true;
}
}
}
finally
{
this.EndUpdate();
}
return(flag1);
}
public static bool UpdatePos(int X, int Y, int DeltaX, int DeltaY, ref Point Pt, bool EndPos)
{
int num1 = Pt.X;
int num2 = Pt.Y;
bool flag1 = SortList.UpdatePos(X, Y, DeltaX, DeltaY, ref num1, ref num2, EndPos);
Pt.X = num1;
Pt.Y = num2;
return(flag1);
}
protected virtual bool UpdatePosition(IRange Range, int X, int Y, int DeltaX, int DeltaY)
{
Point point1 = Range.StartPoint;
bool flag1 = false;
if (SortList.UpdatePos(X, Y, DeltaX, DeltaY, ref point1, false))
{
Range.StartPoint = point1;
flag1 = true;
}
point1 = Range.EndPoint;
if (SortList.UpdatePos(X, Y, DeltaX, DeltaY, ref point1, true))
{
Range.EndPoint = point1;
flag1 = true;
}
return(flag1);
}
