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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "ProfileTimelineWidget.h"
#include "Profile.h"
#include <LibGUI/Painter.h>
ProfileTimelineWidget::ProfileTimelineWidget(Profile& profile)
: m_profile(profile)
{
set_background_color(Color::White);
set_fill_with_background_color(true);
set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
set_preferred_size(0, 80);
}
ProfileTimelineWidget::~ProfileTimelineWidget()
{
}
void ProfileTimelineWidget::paint_event(GUI::PaintEvent& event)
{
GUI::Frame::paint_event(event);
GUI::Painter painter(*this);
painter.add_clip_rect(event.rect());
float column_width = (float)frame_inner_rect().width() / (float)m_profile.length_in_ms();
float frame_height = (float)frame_inner_rect().height() / (float)m_profile.deepest_stack_depth();
for (auto& sample : m_profile.samples()) {
u64 t = sample.timestamp - m_profile.first_timestamp();
int x = (int)((float)t * column_width);
int cw = max(1, (int)column_width);
int column_height = frame_inner_rect().height() - (int)((float)sample.frames.size() * frame_height);
bool in_kernel = sample.in_kernel;
Color color = in_kernel ? Color::from_rgb(0xc25e5a) : Color::from_rgb(0x5a65c2);
for (int i = 0; i < cw; ++i)
painter.draw_line({ x + i, frame_thickness() + column_height }, { x + i, height() - frame_thickness() * 2 }, color);
}
u64 normalized_start_time = min(m_select_start_time, m_select_end_time);
u64 normalized_end_time = max(m_select_start_time, m_select_end_time);
int select_start_x = (int)((float)(normalized_start_time - m_profile.first_timestamp()) * column_width);
int select_end_x = (int)((float)(normalized_end_time - m_profile.first_timestamp()) * column_width);
painter.fill_rect({ select_start_x, frame_thickness(), select_end_x - select_start_x, height() - frame_thickness() * 2 }, Color(0, 0, 0, 60));
}
u64 ProfileTimelineWidget::timestamp_at_x(int x) const
{
float column_width = (float)frame_inner_rect().width() / (float)m_profile.length_in_ms();
float ms_into_profile = (float)x / column_width;
return m_profile.first_timestamp() + (u64)ms_into_profile;
}
void ProfileTimelineWidget::mousedown_event(GUI::MouseEvent& event)
{
if (event.button() != GUI::MouseButton::Left)
return;
m_selecting = true;
m_select_start_time = timestamp_at_x(event.x());
m_select_end_time = m_select_start_time;
m_profile.set_timestamp_filter_range(m_select_start_time, m_select_end_time);
update();
}
void ProfileTimelineWidget::mousemove_event(GUI::MouseEvent& event)
{
if (!m_selecting)
return;
m_select_end_time = timestamp_at_x(event.x());
m_profile.set_timestamp_filter_range(m_select_start_time, m_select_end_time);
update();
}
void ProfileTimelineWidget::mouseup_event(GUI::MouseEvent& event)
{
if (event.button() != GUI::MouseButton::Left)
return;
m_selecting = false;
if (m_select_start_time == m_select_end_time)
m_profile.clear_timestamp_filter_range();
}
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