FrameGraphWidget.cpp

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#include "FrameGraphWidget.h"
 
#include <QComboBox>
#include <QHBoxLayout>
#include <QLabel>
#include <QVBoxLayout>
 
#include "physics/PhysicsBody.h"
#include "FrameGraphCanvas.h"
 
namespace {
    constexpr int kLayoutMargin     = 6;
    constexpr int kLayoutSpacing    = 4;
    constexpr int kHeaderMargin     = 0;
    constexpr int kHeaderSpacing    = 4;
    constexpr int kMinWidgetHeight  = 150;
    constexpr int kMaxWidgetHeight  = 190;
}
 
FrameGraphWidget::FrameGraphWidget(QWidget* parent) : QWidget(parent) {
    auto* layout = new QVBoxLayout(this);
    layout->setContentsMargins(kLayoutMargin, kLayoutMargin, kLayoutMargin, kLayoutMargin);
    layout->setSpacing(kLayoutSpacing);
 
    auto* headerLayout = new QHBoxLayout();
    headerLayout->setContentsMargins(kHeaderMargin, kHeaderMargin, kHeaderMargin, kHeaderMargin);
    headerLayout->setSpacing(kHeaderSpacing);
 
    titleLabel = new QLabel(metricLabel(currentMetric), this);
    titleLabel->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 
    metricSelector = new QComboBox(this);
    for (int i = 0; i < static_cast<int>(Metric::Count); ++i) {
        metricSelector->addItem(metricLabel(static_cast<Metric>(i)));
    }
 
    headerLayout->addWidget(titleLabel);
    headerLayout->addStretch();
    headerLayout->addWidget(metricSelector);
 
    canvas = new FrameGraphCanvas(this);
 
    layout->addLayout(headerLayout);
    layout->addWidget(canvas, 1);
 
    setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
    setMinimumHeight(kMinWidgetHeight);
    setMaximumHeight(kMaxWidgetHeight);
 
    connect(metricSelector, &QComboBox::currentIndexChanged, this, [this](int index) {
        setMetric(static_cast<Metric>(index));
    });
}
 
void FrameGraphWidget::setSharedData(
    std::shared_ptr<const std::vector<ObjectSnapshot>> frames,
    const std::array<std::pair<float, float>, kPlottableMetricCount>& valueMinMax, 
    float tMin, float tMax
) {
    canvas->setSharedData(std::move(frames), valueMinMax, tMin, tMax);
}
 
void FrameGraphWidget::clear() {
    canvas->clear();
}
 
void FrameGraphWidget::setMetric(Metric metric) {
    currentMetric = metric;
    titleLabel->setText(metricLabel(metric));
    metricSelector->blockSignals(true);
    metricSelector->setCurrentIndex(static_cast<int>(metric));
    metricSelector->blockSignals(false);
    canvas->setMetric(metric);
}
 
void FrameGraphWidget::setSelectorVisible(bool visible) {
    metricSelector->setVisible(visible);
}