text: /*
   * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
   *
   * SPDX-License-Identifier: BSD-2-Clause
   */
  
  #pragma once
  
  #include <LibGUI/Widget.h>
  #include <LibGfx/Orientation.h>
  
  namespace GUI {
  
  class HeaderView final : public Widget {
      C_OBJECT(HeaderView);
  
  public:
      virtual ~HeaderView() override;
  
      Gfx::Orientation orientation() const { return m_orientation; }
  
      Model* model();
      const Model* model() const;
  
      void set_section_size(int section, int size);
      int section_size(int section) const;
  
      void set_default_section_size(int section, int size);
      int default_section_size(int section) const;
      bool is_default_section_size_initialized(int section) const;
  
      Gfx::TextAlignment section_alignment(int section) const;
      void set_section_alignment(int section, Gfx::TextAlignment);
  
      bool is_section_visible(int section) const;
      void set_section_visible(int section, bool);
  
      int section_count() const;
      Gfx::IntRect section_rect(int section) const;
  
      Function<void(int section)> on_resize_doubleclick;
  
  private:
      HeaderView(AbstractTableView&, Gfx::Orientation);
  
      virtual void paint_event(PaintEvent&) override;
      virtual void mousedown_event(MouseEvent&) override;
      virtual void mousemove_event(MouseEvent&) override;
      virtual void mouseup_event(MouseEvent&) override;
      virtual void doubleclick_event(MouseEvent&) override;
      virtual void context_menu_event(ContextMenuEvent&) override;
      virtual void leave_event(Core::Event&) override;
  
      Gfx::IntRect section_resize_grabbable_rect(int) const;
  
      void paint_horizontal(Painter&);
      void paint_vertical(Painter&);
  
      Menu& ensure_context_menu();
      RefPtr<Menu> m_context_menu;
  
      AbstractTableView& m_table_view;
  
      Gfx::Orientation m_orientation { Gfx::Orientation::Horizontal };
  
      struct SectionData {
          int size { 0 };
          int default_size { 0 };
          bool has_initialized_size { false };
          bool has_initialized_default_size { false };
          bool visibility { true };
          RefPtr<Action> visibility_action;
          Gfx::TextAlignment alignment { Gfx::TextAlignment::CenterLeft };
      };
      SectionData& section_data(int section) const;
  
      void set_hovered_section(int);
  
      mutable Vector<SectionData> m_section_data;
  
      bool m_in_section_resize { false };
      Gfx::IntPoint m_section_resize_origin;
      int m_section_resize_original_width { 0 };
      int m_resizing_section { -1 };
      int m_pressed_section { -1 };
      bool m_pressed_section_is_pressed { false };
      int m_hovered_section { -1 };
  };
  
  }
  