#include "UnitDelegate.h"
#include <QPainter>

int BasicUnitDelegate::unitType() const
{
	return 0;
}

void BasicUnitDelegate::paint(QPainter* p, const PresentOption& option)
{
	auto rect = option.outline;
	auto center = rect.center();
	auto alen = rect.width() / 2;
	const float xspan = alen * sqrt(3) / 2;

	QRadialGradient brush(center, alen);
	p->fillRect(rect, brush);

	QList<QPointF> points = endPointsGet(rect);

	QVector<QLineF> lines;
	for (auto idx = 0; idx < 6; ++idx) {
		lines << QLineF(points[idx], points[idx + 1]);
	}
	p->drawLines(lines);

	auto ft = p->font();
	ft.setPixelSize(alen * 0.3);
	p->setFont(ft);

	p->setPen(Qt::white);
	auto text_rect = QRectF(center.x() - xspan, center.y() - alen / 2, xspan * 2, alen);
	auto text_str = QString("(%1,%2)").arg(option.index.row).arg(option.index.col);
	p->drawText(text_rect, Qt::AlignCenter, text_str);
}

QList<QPointF> BasicUnitDelegate::endPointsGet(const QRectF& rect)
{
	auto center = rect.center();
	auto alen = rect.width() / 2;
	const float xspan = alen * sqrt(3) / 2;

	QList<QPointF> points;
	points << QPointF(center.x() - xspan, center.y() - alen / 2);
	points << QPointF(center.x(), 0);
	points << QPointF(center.x() + xspan, center.y() - alen / 2);
	points << QPointF(center.x() + xspan, center.y() + alen / 2);
	points << QPointF(center.x(), rect.height());
	points << QPointF(center.x() - xspan, center.y() + alen / 2);
	points << QPointF(center.x() - xspan, center.y() - alen / 2);

	return points;
}