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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "ProfileTimelineWidget.h"
28#include "Profile.h"
29#include <LibGUI/Painter.h>
30
31ProfileTimelineWidget::ProfileTimelineWidget(Profile& profile)
32 : m_profile(profile)
33{
34 set_background_color(Color::White);
35 set_fill_with_background_color(true);
36 set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
37 set_preferred_size(0, 80);
38}
39
40ProfileTimelineWidget::~ProfileTimelineWidget()
41{
42}
43
44void ProfileTimelineWidget::paint_event(GUI::PaintEvent& event)
45{
46 GUI::Frame::paint_event(event);
47
48 GUI::Painter painter(*this);
49 painter.add_clip_rect(event.rect());
50
51 float column_width = (float)frame_inner_rect().width() / (float)m_profile.length_in_ms();
52 float frame_height = (float)frame_inner_rect().height() / (float)m_profile.deepest_stack_depth();
53
54 for (auto& event : m_profile.events()) {
55 u64 t = event.timestamp - m_profile.first_timestamp();
56 int x = (int)((float)t * column_width);
57 int cw = max(1, (int)column_width);
58
59 int column_height = frame_inner_rect().height() - (int)((float)event.frames.size() * frame_height);
60
61 bool in_kernel = event.in_kernel;
62 Color color = in_kernel ? Color::from_rgb(0xc25e5a) : Color::from_rgb(0x5a65c2);
63 for (int i = 0; i < cw; ++i)
64 painter.draw_line({ x + i, frame_thickness() + column_height }, { x + i, height() - frame_thickness() * 2 }, color);
65 }
66
67 u64 normalized_start_time = min(m_select_start_time, m_select_end_time);
68 u64 normalized_end_time = max(m_select_start_time, m_select_end_time);
69
70 int select_start_x = (int)((float)(normalized_start_time - m_profile.first_timestamp()) * column_width);
71 int select_end_x = (int)((float)(normalized_end_time - m_profile.first_timestamp()) * column_width);
72 painter.fill_rect({ select_start_x, frame_thickness(), select_end_x - select_start_x, height() - frame_thickness() * 2 }, Color(0, 0, 0, 60));
73}
74
75u64 ProfileTimelineWidget::timestamp_at_x(int x) const
76{
77 float column_width = (float)frame_inner_rect().width() / (float)m_profile.length_in_ms();
78 float ms_into_profile = (float)x / column_width;
79 return m_profile.first_timestamp() + (u64)ms_into_profile;
80}
81
82void ProfileTimelineWidget::mousedown_event(GUI::MouseEvent& event)
83{
84 if (event.button() != GUI::MouseButton::Left)
85 return;
86
87 m_selecting = true;
88 m_select_start_time = timestamp_at_x(event.x());
89 m_select_end_time = m_select_start_time;
90 m_profile.set_timestamp_filter_range(m_select_start_time, m_select_end_time);
91 update();
92}
93
94void ProfileTimelineWidget::mousemove_event(GUI::MouseEvent& event)
95{
96 if (!m_selecting)
97 return;
98
99 m_select_end_time = timestamp_at_x(event.x());
100 m_profile.set_timestamp_filter_range(m_select_start_time, m_select_end_time);
101 update();
102}
103
104void ProfileTimelineWidget::mouseup_event(GUI::MouseEvent& event)
105{
106 if (event.button() != GUI::MouseButton::Left)
107 return;
108
109 m_selecting = false;
110 if (m_select_start_time == m_select_end_time)
111 m_profile.clear_timestamp_filter_range();
112}