66 lines
2.7 KiB
C++
66 lines
2.7 KiB
C++
#include "Frequency_Trace.h"
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#include "Plottable_Real_Time_Data.h"
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#include "Heatmap_Utils.h"
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#include "../render/Blend2D_Cache.h"
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#include <algorithm>
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#include <deque>
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#include <vector>
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namespace renderive {
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namespace detail {
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namespace {
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using Frequency_Trace_History = Plottable_History_Real_Time_Data<std::pair<int, double>, std::deque<std::pair<int, double>>>;
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}
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struct Frequency_Trace_Control::Impl {
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struct Prepare_Buffer {
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std::vector<PointF> points;
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};
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Impl(Frequency_Trace_Control& owner, std::shared_ptr<Time_Axis> time, std::shared_ptr<Axis> value)
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: time_axis(std::move(time)), value_axis(std::move(value)), samples(owner) {}
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std::shared_ptr<Time_Axis> time_axis;
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std::shared_ptr<Axis> value_axis;
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Frequency_Trace_History samples;
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Prepare_Buffer prepare_buffer;
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};
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Frequency_Trace_Control::Frequency_Trace_Control(::Scene_Base& scene, const Frequency_Trace_Properties& properties, std::shared_ptr<Time_Axis> time_axis, std::shared_ptr<Axis> value_axis)
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: Plottable_State(scene, properties), impl_(std::make_unique<Impl>(*this, std::move(time_axis), std::move(value_axis))) {}
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Frequency_Trace_Control::~Frequency_Trace_Control() = default;
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void Frequency_Trace_Control::append_sample(int tick, double value) {
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const int limit = std::max(2, impl_->time_axis->get<&Time_Axis_Properties::visible_count>());
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impl_->samples.update({tick, value}, static_cast<std::size_t>(limit));
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changed();
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}
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void Frequency_Trace_Control::append_sample(Time_Of_Day time, double value) {
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append_sample(impl_->time_axis->append_time(time), value);
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}
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std::size_t Frequency_Trace_Control::sample_count() const {
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return impl_->samples.size();
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}
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std::size_t Frequency_Trace_Control::rendered_point_count() const {
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const std::size_t count = sample_count();
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return count >= 2 ? count : 0;
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}
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void Frequency_Trace_Control::publish() {
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publish_properties();
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}
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void Frequency_Trace_Control::prepare_frame(const Prepare_Render_Context& context) {
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const auto& view = context.frame.render_state;
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const auto& state = render_properties(view);
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const auto& samples = view.get(impl_->samples);
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auto& output = impl_->prepare_buffer;
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output = {};
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if (samples.size() < 2)
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return;
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const Axis_Transform x = impl_->time_axis->transform(view);
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const Axis_Transform y = impl_->value_axis->transform(view);
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output.points.reserve(samples.size());
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for (const auto& [tick, value] : samples)
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output.points.push_back(mapped_point(x, tick, y, value));
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}
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void Frequency_Trace_Control::paint(Painter& painter,
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const Paint_Render_Context& context) {
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const auto& view = context.frame.render_state;
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painter.polyline(impl_->prepare_buffer.points, render_properties(view).pen);
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}
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}
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}
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