/****************************************************************************
**
** Copyright (C) 2012 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/

#include "barchartitem_p.h"
#include "bar_p.h"
#include "qabstractbarseries_p.h"
#include "qbarset.h"
#include "qbarset_p.h"

QTCOMMERCIALCHART_BEGIN_NAMESPACE

BarChartItem::BarChartItem(QAbstractBarSeries *series, QGraphicsItem* item) :
    AbstractBarChartItem(series, item)
{
}

QVector<QRectF> BarChartItem::calculateLayout()
{
    QVector<QRectF> layout;

    // Use temporary qreals for accuracy
    qreal categoryCount = m_series->d_func()->categoryCount();
    qreal setCount = m_series->count();
//    bool barsVisible = m_series->isVisible();
    qreal barWidth = m_series->d_func()->barWidth();
    //    barWidth = 1.8;

    int itemIndex(0);
    for(int category = 0; category < categoryCount; category++) {
        for (int set = 0; set < setCount; set++) {
            qreal value = m_series->barSets().at(set)->at(category);
            QRectF rect;
            QPointF topLeft = domain()->calculateGeometryPoint(QPointF(category - barWidth / 2 + (set)/(setCount) * barWidth, value));
            QPointF bottomRight;
            if (domain()->type() == AbstractDomain::XLogYDomain
                    || domain()->type() == AbstractDomain::LogXLogYDomain)
                bottomRight = domain()->calculateGeometryPoint(QPointF(category - barWidth / 2 + (set + 1)/(setCount) * barWidth, domain()->minY()));
            else
                bottomRight = domain()->calculateGeometryPoint(QPointF(category - barWidth / 2 + (set + 1)/(setCount) * barWidth, 0));
            rect.setTopLeft(topLeft);
            rect.setBottomRight(bottomRight);
            layout.append(rect);

            QGraphicsSimpleTextItem *label = m_labels.at(itemIndex);
            label->setZValue(200);
            itemIndex++;
            if (!qFuzzyCompare(value, 0))
                label->setText(QString::number(value));
            else
                label->setText(QString(""));

//            label->setFont(m_series->barSets().at(set)->labelFont());
//            label->setBrush(m_series->barSets().at(set)->labelBrush());
            label->setBrush(Qt::black);

            label->setPos(rect.center() - label->boundingRect().center());

        }
    }

    // AbstractDomain:
    //    qreal width = geometry().width();
    //    qreal height = geometry().height();
    //    qreal rangeY = m_domainMaxY - m_domainMinY;
    //    qreal rangeX = m_domainMaxX - m_domainMinX;
    //    qreal scaleY = (height / rangeY);
    //    qreal scaleX = (width / rangeX);
    //    qreal rectWidth = (scaleX / setCount) * m_series->d_func()->barWidth();

    //    int itemIndex(0);
    //    for (int category = 0; category < categoryCount; category++) {
    //        qreal yPos = height + scaleY * m_domainMinY + geometry().top();
    //        for (int set = 0; set < setCount; set++) {
    //            QBarSetPrivate *barSet = m_series->d_func()->barsetAt(set)->d_ptr.data();

    //            qreal xPos = (barSet->pos(category) - m_domainMinX) * scaleX + geometry().left();
    //            xPos -= setCount * rectWidth / 2;
    //            xPos += set * rectWidth;barWidth / 2

    //            qreal rectHeight = barSet->value(category) * scaleY;
    //            Bar *bar = m_bars.at(itemIndex);

    //            QRectF rect(xPos, yPos - rectHeight, rectWidth, rectHeight);
    //            layout.append(rect);
    //            bar->setPen(barSet->m_pen);
    //            bar->setBrush(barSet->m_brush);
    //            if (qFuzzyIsNull(rectHeight))
    //                bar->setVisible(false);
    //            else
    //                bar->setVisible(barsVisible);

    //            QGraphicsSimpleTextItem *label = m_labels.at(itemIndex);

    //            if (!qFuzzyIsNull(barSet->value(category)))
    //                label->setText(QString::number(barSet->value(category)));
    //            else
    //                label->setText(QString(""));

    //            label->setPos(xPos + (rect.width() / 2 - label->boundingRect().width() / 2),
    //                          yPos - rectHeight / 2 - label->boundingRect().height() / 2);
    //            label->setFont(barSet->m_labelFont);
    //            label->setBrush(barSet->m_labelBrush);

    //            itemIndex++;
    //        }
    //    }
    return layout;
}

#include "moc_barchartitem_p.cpp"

QTCOMMERCIALCHART_END_NAMESPACE