jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2021, Nicholas Hollett <niax@niax.co.uk>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#pragma once
8
9#include "Profile.h"
10#include <AK/Function.h>
11#include <AK/Optional.h>
12#include <LibGUI/Model.h>
13#include <LibGUI/Painter.h>
14#include <LibGUI/ScrollableContainerWidget.h>
15#include <LibGUI/Widget.h>
16#include <LibGfx/Color.h>
17
18namespace Profiler {
19
20class FlameGraphView final : public GUI::AbstractScrollableWidget
21 , GUI::ModelClient {
22 C_OBJECT(FlameGraphView);
23
24public:
25 virtual ~FlameGraphView() override = default;
26
27 Function<void()> on_hover_change;
28
29 GUI::ModelIndex hovered_index() const;
30
31protected:
32 virtual void model_did_update(unsigned flags) override;
33
34 virtual void mousemove_event(GUI::MouseEvent&) override;
35 virtual void mousedown_event(GUI::MouseEvent&) override;
36
37 virtual void resize_event(GUI::ResizeEvent&) override;
38 virtual void paint_event(GUI::PaintEvent&) override;
39
40private:
41 explicit FlameGraphView(GUI::Model&, int text_column, int width_column);
42
43 struct StackBar {
44 GUI::ModelIndex const index;
45 Gfx::IntRect rect;
46 bool selected;
47 };
48
49 DeprecatedString bar_label(StackBar const&) const;
50 void layout_bars();
51 void layout_children(GUI::ModelIndex& parent, int depth, int left, int right, Vector<GUI::ModelIndex>& selected);
52
53 GUI::Model& m_model;
54 int m_text_column { -1 };
55 int m_width_column { -1 };
56 Vector<Gfx::Color> m_colors;
57 Vector<StackBar> m_bars;
58 StackBar* m_hovered_bar {};
59 Vector<GUI::ModelIndex> m_selected_indexes;
60 Gfx::IntSize m_old_available_size {};
61};
62
63}