disp.cpp

#include <QPainter>

#include "disp.h"
#include "ui_disp.h"

Disp::Disp(vrok::VUMeter *meter, QWidget *parent) : QWidget(parent), ui(new Ui::Disp), _meter(meter) {
    timer.start(1);
    connect(&timer, SIGNAL(timeout()), this, SLOT(draw()));
    ui->setupUi(this);
}

void Disp::paintEvent(QPaintEvent *e) {
    QPainter painter(this);
    QPen pen;
    pen.setWidth(10);
    double val[2], clip[2];
    _meter->GetValues(0, val[0], clip[0]);
    _meter->GetValues(1, val[1], clip[1]);

    vrok::Clip(val[0], 0.0, 1.0);
    vrok::Clip(val[1], 0.0, 1.0);

    painter.setPen(pen);
    painter.drawLine(0, 20, val[0] * 100, 20);
    painter.drawLine(0, 40, val[1] * 100, 40);

    QColor color1("red"), color2("red");
    color1.setAlpha(clip[0] * 255);
    color2.setAlpha(clip[1] * 255);

    pen.setColor(color1);
    painter.setPen(pen);
    painter.drawLine(100, 20, 110, 20);
    pen.setColor(color2);
    painter.setPen(pen);
    painter.drawLine(100, 40, 110, 40);
    painter.end();
}

Disp::~Disp() {
    delete ui;
}

void Disp::draw() {
    repaint();
}