ladybird/Userland/Libraries/LibGUI/HeaderView.h
Tim Ledbetter 1eb1f7bde9 LibGUI: Allow HeaderView column selectability to be toggled
Previously, any TableView column could be made visible through a
context menu shown by right clicking on the table header. This change
allows columns to be marked as non-selectable, so their visibility
cannot be toggled in this way.
2024-01-14 15:01:47 -07:00

116 lines
3.3 KiB
C++

/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* 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 = default;
Gfx::Orientation orientation() const { return m_orientation; }
Model* model();
Model const* 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);
void set_section_selectable(int section, bool);
int section_count() const;
Gfx::IntRect section_rect(int section) const;
Function<void(int section)> on_resize_doubleclick;
static constexpr auto const sorting_arrow_offset = 3;
static constexpr auto const sorting_arrow_width = 6;
static constexpr auto const ascending_arrow_coordinates = Array {
Gfx::IntPoint { 4, 2 },
Gfx::IntPoint { 1, 5 },
Gfx::IntPoint { 7, 5 },
};
static constexpr auto const descending_arrow_coordinates = Array {
Gfx::IntPoint { 1, 3 },
Gfx::IntPoint { 7, 3 },
Gfx::IntPoint { 4, 6 },
};
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;
struct VisibleSectionRange {
int start_offset { 0 };
int start { 0 };
int end { 0 };
};
VisibleSectionRange visible_section_range() const;
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 };
bool selectable { 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 };
};
}