#include <cstdlib>
#include <cmath>
#include "PieChartScene.h"
#include "PieRound.h"
#include "PieLegend.h"

const QSizeF PieChartScene::Margin(20, 20);
const QSizeF PieChartScene::Size(500, 230);

PieChartScene::PieChartScene(PieChart* chart):
    QGraphicsScene(chart), chart(chart)
{
    setSceneRect(0, 0, Size.width(), Size.height());
}

void PieChartScene::setDataSet(const QList<DataPoint>& dataSet)
{
    clear();
    this->dataSet = dataSet;
    int centerPos = PieRound::Margin + PieRound::Radius;
    QPointF roundPos(QPointF(Margin.width(), Margin.height()) +
            QPointF(centerPos, centerPos));
    addItem(new PieRound(roundPos, this));
    addItem(new PieLegend(roundPos + QPointF(LegendDistance, 0), this));
}

void PieChartScene::setColors(const QStringList& colors)
{
    this->colors = colors;
}