blob: 8900c67619f1bfe37420c3cbee95ffb0f13b4afc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/HashMap.h>
#include <LibGUI/AbstractTableView.h>
namespace GUI {
class TreeView : public AbstractTableView {
C_OBJECT(TreeView)
public:
virtual ~TreeView() override = default;
virtual void scroll_into_view(ModelIndex const&, bool scroll_horizontally, bool scroll_vertically) override;
virtual int item_count() const override;
virtual void toggle_index(ModelIndex const&) override;
bool is_toggled(ModelIndex const& index);
void expand_tree(ModelIndex const& root = {});
void collapse_tree(ModelIndex const& root = {});
void expand_all_parents_of(ModelIndex const&);
Function<void(ModelIndex const&, bool const)> on_toggle;
void set_should_fill_selected_rows(bool fill) { m_should_fill_selected_rows = fill; }
bool should_fill_selected_rows() const { return m_should_fill_selected_rows; }
virtual int vertical_padding() const override { return m_vertical_padding; }
virtual Gfx::IntRect content_rect(ModelIndex const&) const override;
virtual Gfx::IntRect paint_invalidation_rect(ModelIndex const& index) const override { return content_rect(index); }
virtual int minimum_column_width(int column) override;
protected:
TreeView();
virtual void mousedown_event(MouseEvent&) override;
virtual void paint_event(PaintEvent&) override;
virtual void doubleclick_event(MouseEvent&) override;
virtual void keydown_event(KeyEvent&) override;
virtual void did_update_selection() override;
virtual void model_did_update(unsigned flags) override;
virtual void move_cursor(CursorMovement, SelectionUpdate) override;
private:
virtual ModelIndex index_at_event_position(Gfx::IntPoint, bool& is_toggle) const override;
int max_item_width() const { return frame_inner_rect().width(); }
int indent_width_in_pixels() const { return 16; }
int icon_size() const { return 16; }
int icon_spacing() const { return 2; }
int toggle_size() const { return 9; }
int text_padding() const { return 2; }
int tree_column_x_offset() const;
virtual void update_column_sizes() override;
virtual void auto_resize_column(int column) override;
template<typename Callback>
void traverse_in_paint_order(Callback) const;
struct MetadataForIndex;
MetadataForIndex& ensure_metadata_for_index(ModelIndex const&) const;
void set_open_state_of_all_in_subtree(ModelIndex const& root, bool open);
mutable HashMap<ModelIndex, NonnullOwnPtr<MetadataForIndex>> m_view_metadata;
RefPtr<Gfx::Bitmap> m_expand_bitmap;
RefPtr<Gfx::Bitmap> m_collapse_bitmap;
bool m_should_fill_selected_rows { false };
int m_vertical_padding { 6 };
};
}
|
