ColumnsView.h 2.2 KB

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  1. /*
  2. * Copyright (c) 2020, Sergey Bugaev <bugaevc@serenityos.org>
  3. * Copyright (c) 2022, the SerenityOS developers.
  4. *
  5. * SPDX-License-Identifier: BSD-2-Clause
  6. */
  7. #pragma once
  8. #include <AK/Vector.h>
  9. #include <LibGUI/AbstractView.h>
  10. namespace GUI {
  11. class ColumnsView : public AbstractView {
  12. C_OBJECT(ColumnsView)
  13. public:
  14. int model_column() const { return m_model_column; }
  15. void set_model_column(int column) { m_model_column = column; }
  16. virtual ModelIndex index_at_event_position(Gfx::IntPoint) const override;
  17. virtual Gfx::IntRect content_rect(ModelIndex const&) const override;
  18. virtual Gfx::IntRect paint_invalidation_rect(ModelIndex const&) const override;
  19. virtual void scroll_into_view(ModelIndex const&, bool scroll_horizontally, bool scroll_vertically) override;
  20. private:
  21. ColumnsView();
  22. virtual ~ColumnsView() override = default;
  23. void push_column(ModelIndex const& parent_index);
  24. void update_column_sizes();
  25. int item_height() const { return 18; }
  26. int icon_size() const { return 16; }
  27. int icon_spacing() const { return 2; }
  28. int text_padding() const { return 2; }
  29. int column_separator_width() const { return 1; }
  30. virtual void model_did_update(unsigned flags) override;
  31. virtual void second_paint_event(PaintEvent&) override;
  32. virtual void paint_event(PaintEvent&) override;
  33. virtual void mousedown_event(MouseEvent& event) override;
  34. virtual void mousemove_event(MouseEvent&) override;
  35. virtual void mouseup_event(MouseEvent&) override;
  36. virtual void select_range(ModelIndex const&) override;
  37. void move_cursor(CursorMovement, SelectionUpdate) override;
  38. virtual void select_all() override;
  39. struct Column {
  40. ModelIndex parent_index;
  41. int width;
  42. // TODO: per-column vertical scroll?
  43. };
  44. Optional<Column> column_at_event_position(Gfx::IntPoint) const;
  45. ModelIndex index_at_event_position_in_column(Gfx::IntPoint, Column const&) const;
  46. Gfx::IntRect index_content_rect(ModelIndex const&);
  47. bool m_rubber_banding { false };
  48. int m_rubber_band_origin { 0 };
  49. Column m_rubber_band_origin_column;
  50. int m_rubber_band_current { 0 };
  51. Vector<Column> m_columns;
  52. int m_model_column { 0 };
  53. };
  54. }