BiomePainter.BitmapSelector.BitmapSelector.BitmapSelector_MouseUp C# (CSharp) 메소드

        private void BitmapSelector_MouseUp(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
                mouse1Down = false;
            else if (e.Button == MouseButtons.Right)
                mouse2Down = false;

            String description = "";
            if (Brush == BrushType.Rectangle)
            {
                if (mouseDownLast.X != -1 && mouseDownLast.Y != -1)
                {
                    Point p = Translate(e.Location);
                    using (Graphics g = Graphics.FromImage(Layers[SelectionLayerIndex].Image))
                    {
                        if (!SelectionBounds.IsEmpty)
                            g.SetClip(SelectionBounds);
                        g.CompositingMode = CompositingMode.SourceCopy;
                        Brush b = new SolidBrush(e.Button == MouseButtons.Left ? SelectionColor : Color.Transparent);
                        g.FillRectangle(b, Rectangle.FromLTRB(Math.Min(mouseDownLast.X, p.X), Math.Min(mouseDownLast.Y, p.Y), Math.Max(mouseDownLast.X, p.X), Math.Max(mouseDownLast.Y, p.Y)));
                        b.Dispose();
                    }
                    RedrawBrushLayer(new Point(), true);
                    Redraw();
                    description = "Rectangle ";
                }
            }
            else if (Brush == BrushType.Fill)
                description = "Fill ";

            mouseDownLast.X = -1;
            mouseDownLast.Y = -1;
            OnSelectionChanged(description + (e.Button == MouseButtons.Left ? "Select" : "Deselect"));
            if(!cursorVisible)
            {
                Cursor.Show();
                cursorVisible = true;
            }
        }