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https://github.com/RGBCube/serenity
synced 2025-05-22 16:55:09 +00:00
3fd2304dad
You can now select the time range you want on the profile timeline. The tree view will update automatically as you alter the range. Unfortunately this causes the treeview to collapse all of its nodes. It would be nice to solve this somehow in the future so that nodes can stay open.
87 lines
3 KiB
C++
87 lines
3 KiB
C++
#include "ProfileTimelineWidget.h"
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#include "Profile.h"
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#include <LibGUI/GPainter.h>
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ProfileTimelineWidget::ProfileTimelineWidget(Profile& profile, GWidget* parent)
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: GFrame(parent)
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, m_profile(profile)
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{
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set_frame_thickness(2);
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set_frame_shadow(FrameShadow::Sunken);
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set_frame_shape(FrameShape::Container);
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set_background_color(Color::White);
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set_fill_with_background_color(true);
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set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
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set_preferred_size(0, 80);
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}
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ProfileTimelineWidget::~ProfileTimelineWidget()
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{
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}
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void ProfileTimelineWidget::paint_event(GPaintEvent& event)
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{
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GFrame::paint_event(event);
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GPainter painter(*this);
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painter.add_clip_rect(event.rect());
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float column_width = (float)frame_inner_rect().width() / (float)m_profile.length_in_ms();
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m_profile.for_each_sample([&](const JsonObject& sample) {
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u64 t = sample.get("timestamp").to_number<u64>() - m_profile.first_timestamp();
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int x = (int)((float)t * column_width);
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int cw = max(1, (int)column_width);
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bool in_kernel = sample.get("frames").as_array().at(1).as_object().get("address").to_number<u32>() < (8 * MB);
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Color color = in_kernel ? Color::from_rgb(0xc25e5a) : Color::from_rgb(0x5a65c2);
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for (int i = 0; i < cw; ++i)
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painter.draw_line({ x + i, frame_thickness() }, { x + i, height() - frame_thickness() * 2 }, color);
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});
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u64 normalized_start_time = min(m_select_start_time, m_select_end_time);
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u64 normalized_end_time = max(m_select_start_time, m_select_end_time);
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int select_start_x = (int)((float)(normalized_start_time - m_profile.first_timestamp()) * column_width);
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int select_end_x = (int)((float)(normalized_end_time - m_profile.first_timestamp()) * column_width);
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painter.fill_rect({ select_start_x, frame_thickness(), select_end_x - select_start_x, height() - frame_thickness() * 2 }, Color(0, 0, 0, 60));
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}
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u64 ProfileTimelineWidget::timestamp_at_x(int x) const
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{
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float column_width = (float)frame_inner_rect().width() / (float)m_profile.length_in_ms();
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float ms_into_profile = (float)x / column_width;
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return m_profile.first_timestamp() + (u64)ms_into_profile;
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}
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void ProfileTimelineWidget::mousedown_event(GMouseEvent& event)
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{
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if (event.button() != GMouseButton::Left)
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return;
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m_selecting = true;
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m_select_start_time = timestamp_at_x(event.x());
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m_select_end_time = m_select_start_time;
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m_profile.set_timestamp_filter_range(m_select_start_time, m_select_end_time);
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update();
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}
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void ProfileTimelineWidget::mousemove_event(GMouseEvent& event)
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{
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if (!m_selecting)
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return;
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m_select_end_time = timestamp_at_x(event.x());
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m_profile.set_timestamp_filter_range(m_select_start_time, m_select_end_time);
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update();
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}
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void ProfileTimelineWidget::mouseup_event(GMouseEvent& event)
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{
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if (event.button() != GMouseButton::Left)
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return;
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m_selecting = false;
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if (m_select_start_time == m_select_end_time)
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m_profile.clear_timestamp_filter_range();
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}
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