103 lines
4.6 KiB
C++
103 lines
4.6 KiB
C++
#include "Sweep_Spectrum.h"
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#include "Curve_Sampling.h"
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#include "Plottable_Real_Time_Data.h"
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#include "../render/Blend2D_Cache.h"
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#include "../renderable/Renderable_p.h"
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#include <algorithm>
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#include <cmath>
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#include <deque>
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#include <optional>
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namespace renderive {
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namespace detail {
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namespace {
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using Sweep_Spectrum_History = Plottable_History_Real_Time_Data<std::vector<double>, std::deque<std::vector<double>>>;
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std::vector<double> flatten(const std::deque<std::vector<double>>& blocks) {
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std::vector<double> values;
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for(const auto& block : blocks)
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values.insert(values.end(), block.begin(), block.end());
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return values;
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}
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}
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struct Sweep_Spectrum_Control::Impl : Renderable::Impl {
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struct Prepare_Buffer {
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std::vector<PointF> points;
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PointF current_first;
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PointF current_second;
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bool valid{};
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};
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Impl(renderive_Owner<Axis> frequency, renderive_Owner<Axis> power)
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: frequency_axis(std::move(frequency)), power_axis(std::move(power)) {}
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renderive_Owner<Axis> frequency_axis;
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renderive_Owner<Axis> power_axis;
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std::optional<Sweep_Spectrum_History> blocks;
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Prepare_Buffer prepare_buffer;
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};
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Sweep_Spectrum_Control::Sweep_Spectrum_Control(const Sweep_Spectrum_Properties& properties, renderive_Owner<Axis> frequency_axis, renderive_Owner<Axis> power_axis)
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: Plottable_State(properties, std::make_unique<Impl>(
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std::move(frequency_axis), std::move(power_axis))) {
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d_func<Impl>().blocks.emplace(*this);
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}
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Sweep_Spectrum_Control::~Sweep_Spectrum_Control() = default;
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void Sweep_Spectrum_Control::append_block(std::span<const double> values) {
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if(get<&Sweep_Spectrum_Properties::bins_per_block>() <= 0)
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set<&Sweep_Spectrum_Properties::bins_per_block>(static_cast<int>(values.size()));
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const int limit = get<&Sweep_Spectrum_Properties::block_count>();
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d_func<Impl>().blocks->update({values.begin(), values.end()}, static_cast<std::size_t>(limit));
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changed();
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}
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void Sweep_Spectrum_Control::append_block(std::pmr::vector<double>&& values) {
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append_block(std::span<const double>(values.data(), values.size()));
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}
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std::size_t Sweep_Spectrum_Control::stored_block_count() const {
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return d_func<Impl>().blocks->size();
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}
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std::size_t Sweep_Spectrum_Control::stored_point_count() const {
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const auto blocks = d_func<Impl>().blocks->snapshot();
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std::size_t count{};
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for(const auto& block : blocks)
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count += block.size();
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return count;
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}
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std::size_t Sweep_Spectrum_Control::rendered_point_count() const {
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const auto state = properties();
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const auto values = flatten(d_func<Impl>().blocks->snapshot());
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return curve_points(values, state.frequency_range, d_func<Impl>().frequency_axis->transform(), d_func<Impl>().power_axis->transform(), state.visible_range_only, state.interpolation_mode).size();
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}
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void Sweep_Spectrum_Control::publish() {
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publish_properties();
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const int limit = get<&Sweep_Spectrum_Properties::block_count>();
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d_func<Impl>().blocks->retain_latest(static_cast<std::size_t>(limit));
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}
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void Sweep_Spectrum_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& blocks = view.get(*d_func<Impl>().blocks);
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const auto values = flatten(blocks);
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auto& output = d_func<Impl>().prepare_buffer;
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output = {};
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if (values.size() < 2)
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return;
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const Axis_Transform x = d_func<Impl>().frequency_axis->transform(view);
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const Axis_Transform y = d_func<Impl>().power_axis->transform(view);
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output.points = curve_points(values, state.frequency_range, x, y,
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state.visible_range_only, state.interpolation_mode);
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const double completed = std::min(1.0, static_cast<double>(blocks.size()) / state.block_count.get());
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const double frequency = state.frequency_range.origin + state.frequency_range.length() * completed;
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output.current_first = mapped_point(x, frequency, y, y.coordinate_range.origin);
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output.current_second = mapped_point(x, frequency, y, y.coordinate_range.target);
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output.valid = true;
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}
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void Sweep_Spectrum_Control::paint(Painter& painter,
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const Paint_Render_Context& context) {
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const auto& output = d_func<Impl>().prepare_buffer;
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if (!output.valid)
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return;
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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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painter.polyline(output.points, state.pen);
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painter.line(output.current_first, output.current_second,
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state.current_frequency_pen);
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}
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}
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}
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