Smartmobili.Cocoa.NSView.SetFrameSize C# (CSharp) Method

        public virtual void SetFrameSize(NSSize newSize)
        {
            NSRect newFrame = _frame;
            if (newSize.Width < 0)
            {
                //NSWarnMLog(@"given negative width", 0);
                newSize.Width = 0;
            }
            if (newSize.Width < 0)
            {
                //NSWarnMLog(@"given negative height", 0);
                newSize.Height = 0;
            }
            if (NS.EqualSizes(_frame.Size, newSize) == false)
            {
                NSSize old_size = _frame.Size;

                if (_is_rotated_or_scaled_from_base)
                {
                    if (_boundsMatrix == null)
                    {
                        double sx = _bounds.Size.Width  / _frame.Size.Width;
                        double sy = _bounds.Size.Height / _frame.Size.Height;

                        newFrame.Size = newSize;
                        this._SetFrameAndClearAutoresizingError(newFrame);
                        _bounds.Size = NS.MakeSize(_frame.Size.Width * sx, _frame.Size.Height * sy);
                        //_bounds.Size.Width  = _frame.Size.Width  * sx;
                        //_bounds.Size.Height = _frame.Size.Height * sy;
                    }
                    else
                    {
                        NSAffineTransform matrix;
                        NSRect frame;

                        newFrame.Size = newSize;
                        this._SetFrameAndClearAutoresizingError(newFrame);

                        frame = _frame;
                        frame.Origin = NS.MakePoint(0, 0);
                        matrix = (NSAffineTransform)_boundsMatrix.Copy();
                        matrix.Invert();
                        matrix.BoundingRectFor(frame ,ref _bounds);
                        //RELEASE(matrix);
                    }
                }
                else
                {
                    newFrame.Size = _bounds.Size = newSize;
                    this._SetFrameAndClearAutoresizingError(newFrame);
                }

                if (_coordinates_valid)
                {
                    //FIXME
                    //(*invalidateImp)(self, invalidateSel);
                }
                this.ResetCursorRects();
                this.ResizeSubviewsWithOldSize(old_size);
                if (_post_frame_changes)
                {
                    //FIXME
                    //[nc postNotificationName: NSViewFrameDidChangeNotification object: self];
                }
            }
        }