BiomePainter.BitmapSelector.BitmapSelector.BitmapSelector_MouseCaptureChanged C# (CSharp) Method

        private void BitmapSelector_MouseCaptureChanged(object sender, EventArgs e)
        {
            if (mouse1Down || mouse2Down)
            {
                String description;
                if (Brush == BrushType.Rectangle)
                    description = "Rectangle ";
                else if (Brush == BrushType.Fill)
                    description = "Fill ";
                else
                    description = "";
                OnSelectionChanged(description + (mouse1Down ? "Select" : "Deselect"));
            }
            mouse1Down = false;
            mouse2Down = false;
            mouseDownLast.X = -1;
            mouseDownLast.Y = -1;
            if (!cursorVisible)
            {
                Cursor.Show();
                cursorVisible = true;
            }
        }