text: /*
   * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
   * Copyright (c) 2021, Mustafa Quraish <mustafa@serenityos.org>
   * Copyright (c) 2022, the SerenityOS developers.
   *
   * SPDX-License-Identifier: BSD-2-Clause
   */
  
  #pragma once
  
  #include "Tool.h"
  #include <LibGUI/Forward.h>
  #include <LibGfx/Point.h>
  
  namespace PixelPaint {
  
  class RectangleTool final : public Tool {
  public:
      RectangleTool() = default;
      virtual ~RectangleTool() override = default;
  
      virtual void on_mousedown(Layer*, MouseEvent&) override;
      virtual void on_mousemove(Layer*, MouseEvent&) override;
      virtual void on_mouseup(Layer*, MouseEvent&) override;
      virtual void on_second_paint(Layer const*, GUI::PaintEvent&) override;
      virtual void on_keydown(GUI::KeyEvent&) override;
      virtual GUI::Widget* get_properties_widget() override;
      virtual Variant<Gfx::StandardCursor, NonnullRefPtr<Gfx::Bitmap>> cursor() override { return Gfx::StandardCursor::Crosshair; }
  
  private:
      enum class FillMode {
          Outline,
          Fill,
          Gradient,
      };
  
      enum class DrawMode {
          FromCenter,
          FromCorner,
      };
  
      void draw_using(GUI::Painter&, Gfx::IntPoint const& start_position, Gfx::IntPoint const& end_position, int thickness);
  
      RefPtr<GUI::Widget> m_properties_widget;
      RefPtr<GUI::TextBox> m_aspect_w_textbox;
      RefPtr<GUI::TextBox> m_aspect_h_textbox;
  
      GUI::MouseButton m_drawing_button { GUI::MouseButton::None };
      Gfx::IntPoint m_rectangle_start_position;
      Gfx::IntPoint m_rectangle_end_position;
      FillMode m_fill_mode { FillMode::Outline };
      DrawMode m_draw_mode { DrawMode::FromCorner };
      int m_thickness { 1 };
      Optional<float> m_aspect_ratio;
  };
  
  }
  