private void _unset_2d_mode() { if (_fpbm != FractalPictureBoxMode._2DViewer) return; _fpbm =FractalPictureBoxMode.none; Paint -= (o, e) => { _draw_selection_rect(e.Graphics, _first_mouse_point, _second_mouse_point); }; MouseDown -= _onmousedown_worker; MouseUp -= _onmouseup_worker; MouseMove -= (o, e) => { _second_mouse_point = e.Location; Invalidate(); }; MouseLeave -= (o, e) => { _is_mouse_into = false; }; MouseEnter -= (o, e) => { _is_mouse_into = true; }; }
private void _set_click_mode() { if (_fpbm == FractalPictureBoxMode.clickmode) return; _fpbm = FractalPictureBoxMode.clickmode; _click_pt = new Point(); Paint += (o, e) => { if (_click_pt.X <0 && _click_pt.Y <0) return; _draw_inverse_color_vertical_line(new Point(_click_pt.X,0),new Point(_click_pt.X,Height),e.Graphics); _draw_inverse_color_horizontal_line(new Point(0, _click_pt.Y), new Point(Width, _click_pt.Y),e.Graphics); }; MouseMove += _mouse_move_clmode; }