#include "PlotRectItem.h"
#include <QPainter>
#include <QwtScaleMap>
PlotRectItem::PlotRectItem(const QString &title)
    : QwtPlotItem() {
    setTitle(title);
    setZ(1000);
    m_pen = QPen(Qt::red, 2, Qt::SolidLine);
    m_brush = QBrush(QColor(255, 0, 0, 30));
}

void PlotRectItem::setRect(const QRectF &rect) {
    m_rect = rect;
}

void PlotRectItem::setPen(const QPen &pen) {
    m_pen = pen;
}

void PlotRectItem::setBrush(const QBrush &brush) {
    m_brush = brush;
}

void PlotRectItem::draw(QPainter *painter,
                        const QwtScaleMap &xMap, const QwtScaleMap &yMap,
                        const QRectF &) const {
    const int x1 = xMap.transform(m_rect.left());
    const int x2 = xMap.transform(m_rect.right());
    const int y1 = yMap.transform(m_rect.top());
    const int y2 = yMap.transform(m_rect.bottom());
    const QRect rect(QPoint(x1, y1), QPoint(x2, y2));

    painter->save();
    painter->setPen(m_pen);
    painter->setBrush(m_brush);
    painter->drawRect(rect);
    painter->restore();
}

QRectF PlotRectItem::boundingRect() const {
    return m_rect;
}