SpinningDial.cpp

#include "SpinningDial.h"

SpinningDial::SpinningDial() : angle(0.0f) {}

void SpinningDial::paint(juce::Graphics& g)
{
    auto bounds = getLocalBounds().toFloat();
    auto center = bounds.getCentre();
    float radius = juce::jmin(bounds.getWidth(), bounds.getHeight()) / 2.0f;

    g.setColour(juce::Colours::lightgrey);
    g.fillEllipse(center.x - radius, center.y - radius, 2.0f * radius, 2.0f * radius);

    juce::Line<float> line(
        center.y + radius * 0.6f * std::sin(angle),
        center.x + radius * 0.6f * std::cos(angle),
        center.y - radius * 0.9f * std::sin(angle),
        center.x - radius * 0.9f * std::cos(angle)
    );

    g.setColour(juce::Colours::black);
    g.drawLine(line, 1.0f);
}

void SpinningDial::setAngle(float newAngle)
{
    angle = newAngle;
    repaint();
}