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ladybird/Userland/Libraries/LibGUI/HeaderView.h

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LibGUI: Move table view headers into their own widget This patch introduces the HeaderView class, which is a widget that implements the column headers of TableView and TreeView. This greatly simplifies event management in the view implementations and also makes it much easier to eventually implement row headers.
2020-08-25 12:25:39 +03:00
/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
Everything: Move to SPDX license identifiers in all files. SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:24:48 +03:00
* SPDX-License-Identifier: BSD-2-Clause
LibGUI: Move table view headers into their own widget This patch introduces the HeaderView class, which is a widget that implements the column headers of TableView and TreeView. This greatly simplifies event management in the view implementations and also makes it much easier to eventually implement row headers.
2020-08-25 12:25:39 +03:00
*/
#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;
LibGUI: Support double-click resizing column headers Columns can now be best-fit resized by double-clicking their grabbable edges. When a default width is set and all data is empty, double-clicking will restore the column to its original state.
2021-03-18 03:11:44 +03:00
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;
LibGUI: Move table view headers into their own widget This patch introduces the HeaderView class, which is a widget that implements the column headers of TableView and TreeView. This greatly simplifies event management in the view implementations and also makes it much easier to eventually implement row headers.
2020-08-25 12:25:39 +03:00
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;
LibGUI: Support double-click resizing column headers Columns can now be best-fit resized by double-clicking their grabbable edges. When a default width is set and all data is empty, double-clicking will restore the column to its original state.
2021-03-18 03:11:44 +03:00
Function<void(int section)> on_resize_doubleclick;
LibGUI: Move table view headers into their own widget This patch introduces the HeaderView class, which is a widget that implements the column headers of TableView and TreeView. This greatly simplifies event management in the view implementations and also makes it much easier to eventually implement row headers.
2020-08-25 12:25:39 +03:00
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;
LibGUI: Support double-click resizing column headers Columns can now be best-fit resized by double-clicking their grabbable edges. When a default width is set and all data is empty, double-clicking will restore the column to its original state.
2021-03-18 03:11:44 +03:00
virtual void doubleclick_event(MouseEvent&) override;
LibGUI: Move table view headers into their own widget This patch introduces the HeaderView class, which is a widget that implements the column headers of TableView and TreeView. This greatly simplifies event management in the view implementations and also makes it much easier to eventually implement row headers.
2020-08-25 12:25:39 +03:00
virtual void context_menu_event(ContextMenuEvent&) override;
virtual void leave_event(Core::Event&) override;
LibGUI: Make HeaderView act only on the visible sections i.e. Drawing them, or handling mouse events on them. Fixes #7505.
2021-05-28 23:58:24 +03:00
struct VisibleSectionRange {
int start_offset { 0 };
int start { 0 };
int end { 0 };
};
VisibleSectionRange visible_section_range() const;
LibGUI: Move table view headers into their own widget This patch introduces the HeaderView class, which is a widget that implements the column headers of TableView and TreeView. This greatly simplifies event management in the view implementations and also makes it much easier to eventually implement row headers.
2020-08-25 12:25:39 +03:00
Gfx::IntRect section_resize_grabbable_rect(int) const;
LibGUI: Add (optional) row headers to GUI::TableView You can now get row headers in your TableView by simply calling: table_view.row_header().set_visible(true) Note that rows are not yet resizable.
2020-08-26 16:54:03 +03:00
void paint_horizontal(Painter&);
void paint_vertical(Painter&);
LibGUI: Move table view headers into their own widget This patch introduces the HeaderView class, which is a widget that implements the column headers of TableView and TreeView. This greatly simplifies event management in the view implementations and also makes it much easier to eventually implement row headers.
2020-08-25 12:25:39 +03:00
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 };
LibGUI: Support double-click resizing column headers Columns can now be best-fit resized by double-clicking their grabbable edges. When a default width is set and all data is empty, double-clicking will restore the column to its original state.
2021-03-18 03:11:44 +03:00
int default_size { 0 };
LibGUI: Move table view headers into their own widget This patch introduces the HeaderView class, which is a widget that implements the column headers of TableView and TreeView. This greatly simplifies event management in the view implementations and also makes it much easier to eventually implement row headers.
2020-08-25 12:25:39 +03:00
bool has_initialized_size { false };
LibGUI: Support double-click resizing column headers Columns can now be best-fit resized by double-clicking their grabbable edges. When a default width is set and all data is empty, double-clicking will restore the column to its original state.
2021-03-18 03:11:44 +03:00
bool has_initialized_default_size { false };
LibGUI: Move table view headers into their own widget This patch introduces the HeaderView class, which is a widget that implements the column headers of TableView and TreeView. This greatly simplifies event management in the view implementations and also makes it much easier to eventually implement row headers.
2020-08-25 12:25:39 +03:00
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 };
};
}
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