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/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include "Histogram.h"
#include <LibGUI/Frame.h>
namespace Profiler {
struct Process;
class Profile;
class TimelineView;
class TimelineTrack final : public GUI::Frame {
C_OBJECT(TimelineTrack);
public:
virtual ~TimelineTrack() override;
void set_scale(float);
private:
float column_width() const;
template<typename Callback>
void for_each_signpost(Callback);
virtual void event(Core::Event&) override;
virtual void paint_event(GUI::PaintEvent&) override;
virtual void mousemove_event(GUI::MouseEvent&) override;
struct HistogramInputs {
bool operator==(HistogramInputs const&) const = default;
u64 start { 0 };
u64 end { 0 };
size_t columns { 0 };
};
void recompute_histograms_if_needed(HistogramInputs const&);
explicit TimelineTrack(TimelineView const&, Profile const&, Process const&);
TimelineView const& m_view;
Profile const& m_profile;
Process const& m_process;
HistogramInputs m_cached_histogram_inputs;
Optional<Histogram<u64>> m_kernel_histogram;
Optional<Histogram<u64>> m_user_histogram;
decltype(m_kernel_histogram->at(0)) m_max_value { 0 };
};
}
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