/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd
** All rights reserved.
** For any questions to The Qt Company, please use contact form at http://qt.io
**
** This file is part of the Qt Charts module.
**
** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
** agreement between you and The Qt Company.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.io
**
****************************************************************************/

#include "declarativechart.h"
#include <QtGui/QPainter>
#include "declarativelineseries.h"
#include "declarativeareaseries.h"
#include "declarativebarseries.h"
#include "declarativepieseries.h"
#include "declarativesplineseries.h"
#include "declarativeboxplotseries.h"
#include "declarativescatterseries.h"
#include <QtCharts/QBarCategoryAxis>
#include <QtCharts/QValueAxis>
#include <QtCharts/QLogValueAxis>
#include <QtCharts/QCategoryAxis>
#include <private/qabstractseries_p.h>
#include "declarativemargins.h"
#include <private/chartdataset_p.h>
#include "declarativeaxes.h"
#include <private/qchart_p.h>
#include <QtCharts/QPolarChart>

#ifndef QT_ON_ARM
    #include <QtCharts/QDateTimeAxis>
#endif

#include <QtWidgets/QGraphicsSceneMouseEvent>
#include <QtWidgets/QGraphicsSceneHoverEvent>
#include <QtWidgets/QApplication>
#include <QtCore/QTimer>
#include <QtCore/QThread>

QT_CHARTS_BEGIN_NAMESPACE

/*!
    \qmltype ChartView
    \instantiates DeclarativeChart
    \inqmlmodule QtCharts

    \brief Chart element.

    ChartView element is the parent that is responsible for showing different chart series types.

    The following QML shows how to create a simple chart with one pie series:
    \snippet qmlpiechart/qml/qmlpiechart/main.qml 1
    \snippet qmlpiechart/qml/qmlpiechart/main.qml 2
    \snippet qmlpiechart/qml/qmlpiechart/main.qml 3

    \beginfloatleft
    \image examples_qmlpiechart.png
    \endfloat
    \clearfloat
*/

/*!
  \qmlproperty Theme ChartView::theme
  Theme defines the visual appearance of the chart, including for example colors, fonts, line
  widths and chart background.
*/

/*!
  \qmlproperty Animation ChartView::animationOptions
  Animation configuration of the chart. One of ChartView.NoAnimation, ChartView.GridAxisAnimations,
  ChartView.SeriesAnimations or ChartView.AllAnimations.
*/

/*!
  \qmlproperty Font ChartView::titleFont
  The title font of the chart.

  See the Qt documentation for more details of Font.
*/

/*!
  \qmlproperty string ChartView::title
  The title of the chart, shown on top of the chart.
  \sa ChartView::titleColor
*/

/*!
  \qmlproperty color ChartView::titleColor
  The color of the title text.
*/

/*!
  \qmlproperty Legend ChartView::legend
  The legend of the chart. Legend lists all the series, pie slices and bar sets added on the chart.
*/

/*!
  \qmlproperty int ChartView::count
  The count of series added to the chart.
*/

/*!
  \qmlproperty color ChartView::backgroundColor
  The color of the chart's background. By default background color is defined by chart theme.
  \sa ChartView::theme
*/

/*!
  \qmlproperty real ChartView::backgroundRoundness
  The diameter of the rounding cirle at the corners of the chart background.
*/

/*!
  \qmlproperty color ChartView::plotAreaColor
  The color of the background of the chart's plot area. By default plot area background uses chart's
  background color.
  \sa ChartView::backgroundColor
*/

/*!
  \qmlproperty list<AbstractAxis> ChartView::axes
  The axes of the ChartView.
*/

/*!
  \qmlproperty bool ChartView::dropShadowEnabled
  The chart's border drop shadow. Set to true to enable drop shadow.
*/

/*!
  \qmlproperty rect ChartView::plotArea
  The area on the ChartView that is used for drawing series. This is the ChartView rect without the
  margins.
  \sa ChartView::margins
*/

/*!
  \qmlproperty Margins ChartView::margins
  The minimum margins allowed between the outer bounds and the plotArea of the ChartView. Margins
  area of ChartView is used for drawing title, axes and legend.
*/

/*!
  \qmlproperty bool ChartView::localizeNumbers
  \since QtCharts 2.0
  When \c{true}, all generated numbers appearing in various series and axis labels will be
  localized using the default QLocale of the application, which defaults to the system locale.
  When \c{false}, the "C" locale is always used.
  Defaults to \c{false}.

  \sa locale
*/

/*!
  \qmlproperty locale ChartView::locale
  \since QtCharts 2.0
  Sets the locale used to format various chart labels when localizeNumbers is \c{true}.
  This also determines the locale used to format DateTimeAxis labels regardless of
  localizeNumbers property.
  Defaults to application default locale at the time the chart is constructed.

  \sa localizeNumbers
*/

/*!
  \qmlmethod AbstractSeries ChartView::series(int index)
  Returns the series with \a index on the chart. This allows you to loop through the series of a chart together with
  the count property of the chart.
*/

/*!
  \qmlmethod AbstractSeries ChartView::series(string name)
  Returns the first series on the chart with \a name. If there is no series with that name, returns null.
*/

/*!
  \qmlmethod AbstractSeries ChartView::createSeries(SeriesType type, string name, AbstractAxis axisX, AbstractAxis axisY)
  Creates a series object of \a type to the chart with name \a name, optional axis \a axisX and
  optional axis \a axisY. For example:
  \code
    // lineSeries is a LineSeries object that has already been added to the ChartView; re-use it's axes
    var myAxisX = chartView.axisX(lineSeries);
    var myAxisY = chartView.axisY(lineSeries);
    var scatter = chartView.createSeries(ChartView.SeriesTypeScatter, "scatter series", myAxisX, myAxisY);
  \endcode
*/

/*!
  \qmlmethod ChartView::removeSeries(AbstractSeries series)
  Removes the \a series from the chart. The series object is also destroyed.
*/

/*!
  \qmlmethod ChartView::removeAllSeries()
  Removes all series from the chart. All the series objects are also destroyed.
*/

/*!
  \qmlmethod Axis ChartView::axisX(AbstractSeries series)
  The x-axis of the series.
*/

/*!
  \qmlmethod ChartView::setAxisX(AbstractAxis axis, AbstractSeries series)
  Set the x-axis of the series.
*/

/*!
  \qmlmethod Axis ChartView::axisY(AbstractSeries series)
  The y-axis of the series.
*/

/*!
  \qmlmethod ChartView::setAxisY(AbstractAxis axis, AbstractSeries series)
  Set the y-axis of the series.
*/

/*!
  \qmlmethod ChartView::zoom(real factor)
  Zooms in by \a factor on the center of the chart.
*/

/*!
  \qmlmethod ChartView::scrollLeft(real pixels)
  Scrolls to left by \a pixels. This is a convenience function that suits for example for key navigation.
*/

/*!
  \qmlmethod ChartView::scrollRight(real pixels)
  Scrolls to right by \a pixels. This is a convenience function that suits for example for key navigation.
*/

/*!
  \qmlmethod ChartView::scrollUp(real pixels)
  Scrolls up by \a pixels. This is a convenience function that suits for example for key navigation.
*/

/*!
  \qmlmethod ChartView::scrollDown(real pixels)
  Scrolls down by \a pixels. This is a convenience function that suits for example for key navigation.
*/

/*!
  \qmlsignal ChartView::seriesAdded(AbstractSeries series)
  The \a series has been added to the chart.
*/

/*!
  \qmlsignal ChartView::seriesRemoved(AbstractSeries series)
  The \a series has been removed from the chart. Please note that \a series is no longer a valid
  object after the signal handler has completed.
*/

DeclarativeChart::DeclarativeChart(QQuickItem *parent)
    : QQuickPaintedItem(parent)
{
    initChart(QChart::ChartTypeCartesian);
}

DeclarativeChart::DeclarativeChart(QChart::ChartType type, QQuickItem *parent)
    : QQuickPaintedItem(parent)
{
    initChart(type);
}

void DeclarativeChart::initChart(QChart::ChartType type)
{
    m_currentSceneImage = 0;
    m_guiThreadId = QThread::currentThreadId();
    m_paintThreadId = 0;
    m_updatePending = false;

    if (type == QChart::ChartTypePolar)
        m_chart = new QPolarChart();
    else
        m_chart = new QChart();

    m_scene = new QGraphicsScene(this);
    m_scene->addItem(m_chart);

    setAntialiasing(QQuickItem::antialiasing());
    connect(m_scene, SIGNAL(changed(QList<QRectF>)), this, SLOT(sceneChanged(QList<QRectF>)));
    connect(this, SIGNAL(antialiasingChanged(bool)), this, SLOT(handleAntialiasingChanged(bool)));

    setAcceptedMouseButtons(Qt::AllButtons);
    setAcceptHoverEvents(true);

    m_margins = new DeclarativeMargins(this);
    m_margins->setTop(m_chart->margins().top());
    m_margins->setLeft(m_chart->margins().left());
    m_margins->setRight(m_chart->margins().right());
    m_margins->setBottom(m_chart->margins().bottom());
    connect(m_margins, SIGNAL(topChanged(int,int,int,int)),
            this, SLOT(changeMargins(int,int,int,int)));
    connect(m_margins, SIGNAL(bottomChanged(int,int,int,int)),
            this, SLOT(changeMargins(int,int,int,int)));
    connect(m_margins, SIGNAL(leftChanged(int,int,int,int)),
            this, SLOT(changeMargins(int,int,int,int)));
    connect(m_margins, SIGNAL(rightChanged(int,int,int,int)),
            this, SLOT(changeMargins(int,int,int,int)));
    connect(m_chart->d_ptr->m_dataset, SIGNAL(seriesAdded(QAbstractSeries*)), this, SLOT(handleSeriesAdded(QAbstractSeries*)));
    connect(m_chart->d_ptr->m_dataset, SIGNAL(seriesRemoved(QAbstractSeries*)), this, SIGNAL(seriesRemoved(QAbstractSeries*)));
    connect(m_chart, &QChart::plotAreaChanged, this, &DeclarativeChart::plotAreaChanged);
}

void DeclarativeChart::handleSeriesAdded(QAbstractSeries *series)
{
    emit seriesAdded(series);
}

void DeclarativeChart::changeMargins(int top, int bottom, int left, int right)
{
    m_chart->setMargins(QMargins(left, top, right, bottom));
    emit marginsChanged();
}

DeclarativeChart::~DeclarativeChart()
{
    delete m_chart;
    m_sceneImageLock.lock();
    delete m_currentSceneImage;
    m_currentSceneImage = 0;
    m_sceneImageLock.unlock();
}

void DeclarativeChart::childEvent(QChildEvent *event)
{
    if (event->type() == QEvent::ChildAdded) {
        if (qobject_cast<QAbstractSeries *>(event->child())) {
            m_chart->addSeries(qobject_cast<QAbstractSeries *>(event->child()));
        }
    }
}

void DeclarativeChart::componentComplete()
{
    foreach (QObject *child, children()) {
        if (qobject_cast<QAbstractSeries *>(child)) {
            // Add series to the chart
            QAbstractSeries *series = qobject_cast<QAbstractSeries *>(child);
            m_chart->addSeries(series);

            // Connect to axis changed signals (unless this is a pie series)
            if (!qobject_cast<DeclarativePieSeries *>(series)) {
                connect(series, SIGNAL(axisXChanged(QAbstractAxis*)), this, SLOT(handleAxisXSet(QAbstractAxis*)));
                connect(series, SIGNAL(axisXTopChanged(QAbstractAxis*)), this, SLOT(handleAxisXTopSet(QAbstractAxis*)));
                connect(series, SIGNAL(axisYChanged(QAbstractAxis*)), this, SLOT(handleAxisYSet(QAbstractAxis*)));
                connect(series, SIGNAL(axisYRightChanged(QAbstractAxis*)), this, SLOT(handleAxisYRightSet(QAbstractAxis*)));
            }

            initializeAxes(series);
        }
    }

    QQuickItem::componentComplete();
}

void DeclarativeChart::seriesAxisAttachHelper(QAbstractSeries *series, QAbstractAxis *axis,
                                              Qt::Orientations orientation,
                                              Qt::Alignment alignment)
{
    if (!series->attachedAxes().contains(axis)) {
        // Remove & delete old axes that are not attached to any other series
        foreach (QAbstractAxis* oldAxis, m_chart->axes(orientation, series)) {
            bool otherAttachments = false;
            if (oldAxis != axis) {
                foreach (QAbstractSeries *oldSeries, m_chart->series()) {
                    if (oldSeries != series && oldSeries->attachedAxes().contains(oldAxis)) {
                        otherAttachments = true;
                        break;
                    }
                }
                if (!otherAttachments) {
                    m_chart->removeAxis(oldAxis);
                    delete oldAxis;
                }
            }
        }
        if (!m_chart->axes(orientation).contains(axis))
            m_chart->addAxis(axis, alignment);

        series->attachAxis(axis);
    }
}

void DeclarativeChart::handleAxisXSet(QAbstractAxis *axis)
{
    QAbstractSeries *s = qobject_cast<QAbstractSeries *>(sender());
    if (axis && s) {
        seriesAxisAttachHelper(s, axis, Qt::Horizontal, Qt::AlignBottom);
    } else {
        qWarning() << "Trying to set axisX to null.";
    }
}

void DeclarativeChart::handleAxisXTopSet(QAbstractAxis *axis)
{
    QAbstractSeries *s = qobject_cast<QAbstractSeries *>(sender());
    if (axis && s) {
        seriesAxisAttachHelper(s, axis, Qt::Horizontal, Qt::AlignTop);
    } else {
        qWarning() << "Trying to set axisXTop to null.";
    }
}

void DeclarativeChart::handleAxisYSet(QAbstractAxis *axis)
{
    QAbstractSeries *s = qobject_cast<QAbstractSeries *>(sender());
    if (axis && s) {
        seriesAxisAttachHelper(s, axis, Qt::Vertical, Qt::AlignLeft);
    } else {
        qWarning() << "Trying to set axisY to null.";
    }
}

void DeclarativeChart::handleAxisYRightSet(QAbstractAxis *axis)
{
    QAbstractSeries *s = qobject_cast<QAbstractSeries *>(sender());
    if (axis && s) {
        seriesAxisAttachHelper(s, axis, Qt::Vertical, Qt::AlignRight);
    } else {
        qWarning() << "Trying to set axisYRight to null.";
    }
}

void DeclarativeChart::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
{
    if (newGeometry.isValid()) {
        if (newGeometry.width() > 0 && newGeometry.height() > 0) {
            m_chart->resize(newGeometry.width(), newGeometry.height());
        }
    }
    QQuickItem::geometryChanged(newGeometry, oldGeometry);
}

void DeclarativeChart::sceneChanged(QList<QRectF> region)
{
    Q_UNUSED(region);

    if (m_guiThreadId == m_paintThreadId) {
        // Rendering in gui thread, no need for shenannigans, just update
        update();
    } else {
        // Multi-threaded rendering, need to ensure scene is actually rendered in gui thread
        if (!m_updatePending) {
            m_updatePending = true;
            // Do async render to avoid some unnecessary renders.
            QTimer::singleShot(0, this, SLOT(renderScene()));
        }
    }
}

void DeclarativeChart::renderScene()
{
    m_updatePending = false;
    m_sceneImageLock.lock();
    delete m_currentSceneImage;
    m_currentSceneImage = new QImage(m_chart->size().toSize(), QImage::Format_ARGB32);
    m_currentSceneImage->fill(Qt::transparent);
    QPainter painter(m_currentSceneImage);
    if (antialiasing())
        painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing | QPainter::SmoothPixmapTransform);
    QRect renderRect(QPoint(0, 0), m_chart->size().toSize());
    m_scene->render(&painter, renderRect, renderRect);
    m_sceneImageLock.unlock();

    update();
}

void DeclarativeChart::paint(QPainter *painter)
{
    if (!m_paintThreadId) {
        m_paintThreadId = QThread::currentThreadId();
        if (m_guiThreadId == m_paintThreadId) {
            // No need for scene image in single threaded rendering, so delete
            // the one that got made by default before the rendering type was
            // detected.
            delete m_currentSceneImage;
            m_currentSceneImage = 0;
        }
    }

    if (m_guiThreadId == m_paintThreadId) {
        QRectF renderRect(QPointF(0, 0), m_chart->size());
        m_scene->render(painter, renderRect, renderRect);
    } else {
        m_sceneImageLock.lock();
        if (m_currentSceneImage) {
            QRect imageRect(QPoint(0, 0), m_currentSceneImage->size());
            QRect itemRect(QPoint(0, 0), QSize(width(), height()));
            painter->drawImage(itemRect, *m_currentSceneImage, imageRect);
        }
        m_sceneImageLock.unlock();
    }
}

void DeclarativeChart::mousePressEvent(QMouseEvent *event)
{
    m_mousePressScenePoint = event->pos();
    m_mousePressScreenPoint = event->globalPos();
    m_lastMouseMoveScenePoint = m_mousePressScenePoint;
    m_lastMouseMoveScreenPoint = m_mousePressScreenPoint;
    m_mousePressButton = event->button();
    m_mousePressButtons = event->buttons();

    QGraphicsSceneMouseEvent mouseEvent(QEvent::GraphicsSceneMousePress);
    mouseEvent.setWidget(0);
    mouseEvent.setButtonDownScenePos(m_mousePressButton, m_mousePressScenePoint);
    mouseEvent.setButtonDownScreenPos(m_mousePressButton, m_mousePressScreenPoint);
    mouseEvent.setScenePos(m_mousePressScenePoint);
    mouseEvent.setScreenPos(m_mousePressScreenPoint);
    mouseEvent.setLastScenePos(m_lastMouseMoveScenePoint);
    mouseEvent.setLastScreenPos(m_lastMouseMoveScreenPoint);
    mouseEvent.setButtons(m_mousePressButtons);
    mouseEvent.setButton(m_mousePressButton);
    mouseEvent.setModifiers(event->modifiers());
    mouseEvent.setAccepted(false);

    QApplication::sendEvent(m_scene, &mouseEvent);
}

void DeclarativeChart::mouseReleaseEvent(QMouseEvent *event)
{
    QGraphicsSceneMouseEvent mouseEvent(QEvent::GraphicsSceneMouseRelease);
    mouseEvent.setWidget(0);
    mouseEvent.setButtonDownScenePos(m_mousePressButton, m_mousePressScenePoint);
    mouseEvent.setButtonDownScreenPos(m_mousePressButton, m_mousePressScreenPoint);
    mouseEvent.setScenePos(event->pos());
    mouseEvent.setScreenPos(event->globalPos());
    mouseEvent.setLastScenePos(m_lastMouseMoveScenePoint);
    mouseEvent.setLastScreenPos(m_lastMouseMoveScreenPoint);
    mouseEvent.setButtons(event->buttons());
    mouseEvent.setButton(event->button());
    mouseEvent.setModifiers(event->modifiers());
    mouseEvent.setAccepted(false);

    QApplication::sendEvent(m_scene, &mouseEvent);

    m_mousePressButtons = event->buttons();
    m_mousePressButton = Qt::NoButton;
}

void DeclarativeChart::hoverMoveEvent(QHoverEvent *event)
{
    // Convert hover move to mouse move, since we don't seem to get actual mouse move events.
    // QGraphicsScene generates hover events from mouse move events, so we don't need
    // to pass hover events there.
    QGraphicsSceneMouseEvent mouseEvent(QEvent::GraphicsSceneMouseMove);
    mouseEvent.setWidget(0);
    mouseEvent.setButtonDownScenePos(m_mousePressButton, m_mousePressScenePoint);
    mouseEvent.setButtonDownScreenPos(m_mousePressButton, m_mousePressScreenPoint);
    mouseEvent.setScenePos(event->pos());
    // Hover events do not have global pos in them, and the screen position doesn't seem to
    // matter anyway in this use case, so just pass event pos instead of trying to
    // calculate the real screen position.
    mouseEvent.setScreenPos(event->pos());
    mouseEvent.setLastScenePos(m_lastMouseMoveScenePoint);
    mouseEvent.setLastScreenPos(m_lastMouseMoveScreenPoint);
    mouseEvent.setButtons(m_mousePressButtons);
    mouseEvent.setButton(m_mousePressButton);
    mouseEvent.setModifiers(event->modifiers());
    m_lastMouseMoveScenePoint = mouseEvent.scenePos();
    m_lastMouseMoveScreenPoint = mouseEvent.screenPos();
    mouseEvent.setAccepted(false);

    QApplication::sendEvent(m_scene, &mouseEvent);
}

void DeclarativeChart::mouseDoubleClickEvent(QMouseEvent *event)
{
    m_mousePressScenePoint = event->pos();
    m_mousePressScreenPoint = event->globalPos();
    m_lastMouseMoveScenePoint = m_mousePressScenePoint;
    m_lastMouseMoveScreenPoint = m_mousePressScreenPoint;
    m_mousePressButton = event->button();
    m_mousePressButtons = event->buttons();

    QGraphicsSceneMouseEvent mouseEvent(QEvent::GraphicsSceneMouseDoubleClick);
    mouseEvent.setWidget(0);
    mouseEvent.setButtonDownScenePos(m_mousePressButton, m_mousePressScenePoint);
    mouseEvent.setButtonDownScreenPos(m_mousePressButton, m_mousePressScreenPoint);
    mouseEvent.setScenePos(m_mousePressScenePoint);
    mouseEvent.setScreenPos(m_mousePressScreenPoint);
    mouseEvent.setLastScenePos(m_lastMouseMoveScenePoint);
    mouseEvent.setLastScreenPos(m_lastMouseMoveScreenPoint);
    mouseEvent.setButtons(m_mousePressButtons);
    mouseEvent.setButton(m_mousePressButton);
    mouseEvent.setModifiers(event->modifiers());
    mouseEvent.setAccepted(false);

    QApplication::sendEvent(m_scene, &mouseEvent);
}

void DeclarativeChart::handleAntialiasingChanged(bool enable)
{
    setAntialiasing(enable);
}

void DeclarativeChart::setTheme(DeclarativeChart::Theme theme)
{
    QChart::ChartTheme chartTheme = (QChart::ChartTheme) theme;
    if (chartTheme != m_chart->theme())
        m_chart->setTheme(chartTheme);
}

DeclarativeChart::Theme DeclarativeChart::theme()
{
    return (DeclarativeChart::Theme) m_chart->theme();
}

void DeclarativeChart::setAnimationOptions(DeclarativeChart::Animation animations)
{
    QChart::AnimationOption animationOptions = (QChart::AnimationOption) animations;
    if (animationOptions != m_chart->animationOptions())
        m_chart->setAnimationOptions(animationOptions);
}

DeclarativeChart::Animation DeclarativeChart::animationOptions()
{
    if (m_chart->animationOptions().testFlag(QChart::AllAnimations))
        return DeclarativeChart::AllAnimations;
    else if (m_chart->animationOptions().testFlag(QChart::GridAxisAnimations))
        return DeclarativeChart::GridAxisAnimations;
    else if (m_chart->animationOptions().testFlag(QChart::SeriesAnimations))
        return DeclarativeChart::SeriesAnimations;
    else
        return DeclarativeChart::NoAnimation;
}

void DeclarativeChart::setTitle(QString title)
{
    if (title != m_chart->title())
        m_chart->setTitle(title);
}
QString DeclarativeChart::title()
{
    return m_chart->title();
}

QAbstractAxis *DeclarativeChart::axisX(QAbstractSeries *series)
{
    QList<QAbstractAxis *> axes = m_chart->axes(Qt::Horizontal, series);
    if (axes.count())
        return axes[0];
    return 0;
}

QAbstractAxis *DeclarativeChart::axisY(QAbstractSeries *series)
{
    QList<QAbstractAxis *> axes = m_chart->axes(Qt::Vertical, series);
    if (axes.count())
        return axes[0];
    return 0;
}

QLegend *DeclarativeChart::legend()
{
    return m_chart->legend();
}

void DeclarativeChart::setTitleColor(QColor color)
{
    QBrush b = m_chart->titleBrush();
    if (color != b.color()) {
        b.setColor(color);
        m_chart->setTitleBrush(b);
        emit titleColorChanged(color);
    }
}

QFont DeclarativeChart::titleFont() const
{
    return m_chart->titleFont();
}

void DeclarativeChart::setTitleFont(const QFont &font)
{
    m_chart->setTitleFont(font);
}

QColor DeclarativeChart::titleColor()
{
    return m_chart->titleBrush().color();
}

void DeclarativeChart::setBackgroundColor(QColor color)
{
    QBrush b = m_chart->backgroundBrush();
    if (b.style() != Qt::SolidPattern || color != b.color()) {
        b.setStyle(Qt::SolidPattern);
        b.setColor(color);
        m_chart->setBackgroundBrush(b);
        emit backgroundColorChanged();
    }
}

QColor DeclarativeChart::backgroundColor()
{
    return m_chart->backgroundBrush().color();
}

void QtCharts::DeclarativeChart::setPlotAreaColor(QColor color)
{
    QBrush b = m_chart->plotAreaBackgroundBrush();
    if (b.style() != Qt::SolidPattern || color != b.color()) {
        b.setStyle(Qt::SolidPattern);
        b.setColor(color);
        m_chart->setPlotAreaBackgroundBrush(b);
        m_chart->setPlotAreaBackgroundVisible(true);
        emit plotAreaColorChanged();
    }
}

QColor QtCharts::DeclarativeChart::plotAreaColor()
{
    return m_chart->plotAreaBackgroundBrush().color();
}

void DeclarativeChart::setLocalizeNumbers(bool localize)
{
    if (m_chart->localizeNumbers() != localize) {
        m_chart->setLocalizeNumbers(localize);
        emit localizeNumbersChanged();
    }
}

bool DeclarativeChart::localizeNumbers() const
{
    return m_chart->localizeNumbers();
}

void QtCharts::DeclarativeChart::setLocale(const QLocale &locale)
{
    if (m_chart->locale() != locale) {
        m_chart->setLocale(locale);
        emit localeChanged();
    }
}

QLocale QtCharts::DeclarativeChart::locale() const
{
    return m_chart->locale();
}

int DeclarativeChart::count()
{
    return m_chart->series().count();
}

void DeclarativeChart::setDropShadowEnabled(bool enabled)
{
    if (enabled != m_chart->isDropShadowEnabled()) {
        m_chart->setDropShadowEnabled(enabled);
        dropShadowEnabledChanged(enabled);
    }
}

bool DeclarativeChart::dropShadowEnabled()
{
    return m_chart->isDropShadowEnabled();
}

qreal DeclarativeChart::backgroundRoundness() const
{
    return m_chart->backgroundRoundness();
}

void DeclarativeChart::setBackgroundRoundness(qreal diameter)
{
    if (m_chart->backgroundRoundness() != diameter) {
        m_chart->setBackgroundRoundness(diameter);
        emit backgroundRoundnessChanged(diameter);
    }
}

void DeclarativeChart::zoom(qreal factor)
{
    m_chart->zoom(factor);
}

void DeclarativeChart::scrollLeft(qreal pixels)
{
    m_chart->scroll(-pixels, 0);
}

void DeclarativeChart::scrollRight(qreal pixels)
{
    m_chart->scroll(pixels, 0);
}

void DeclarativeChart::scrollUp(qreal pixels)
{
    m_chart->scroll(0, pixels);
}

void DeclarativeChart::scrollDown(qreal pixels)
{
    m_chart->scroll(0, -pixels);
}

QQmlListProperty<QAbstractAxis> DeclarativeChart::axes()
{
    return QQmlListProperty<QAbstractAxis>(this, 0,
                &DeclarativeChart::axesAppendFunc,
                &DeclarativeChart::axesCountFunc,
                &DeclarativeChart::axesAtFunc,
                &DeclarativeChart::axesClearFunc);
}

void DeclarativeChart::axesAppendFunc(QQmlListProperty<QAbstractAxis> *list, QAbstractAxis *element)
{
    // Empty implementation
    Q_UNUSED(list);
    Q_UNUSED(element);
}

int DeclarativeChart::axesCountFunc(QQmlListProperty<QAbstractAxis> *list)
{
    if (qobject_cast<DeclarativeChart *>(list->object)) {
        DeclarativeChart *chart = qobject_cast<DeclarativeChart *>(list->object);
        return chart->m_chart->axes(Qt::Horizontal | Qt::Vertical).count();
    }
    return 0;
}

QAbstractAxis *DeclarativeChart::axesAtFunc(QQmlListProperty<QAbstractAxis> *list, int index)
{
    if (qobject_cast<DeclarativeChart *>(list->object)) {
        DeclarativeChart *chart = qobject_cast<DeclarativeChart *>(list->object);
        QList<QAbstractAxis *> axes = chart->m_chart->axes(Qt::Horizontal | Qt::Vertical, chart->m_chart->series()[0]);
        return axes.at(index);
    }
    return 0;
}

void DeclarativeChart::axesClearFunc(QQmlListProperty<QAbstractAxis> *list)
{
    // Empty implementation
    Q_UNUSED(list);
}


QAbstractSeries *DeclarativeChart::series(int index)
{
    if (index < m_chart->series().count()) {
        return m_chart->series().at(index);
    }
    return 0;
}

QAbstractSeries *DeclarativeChart::series(QString seriesName)
{
    foreach (QAbstractSeries *series, m_chart->series()) {
        if (series->name() == seriesName)
            return series;
    }
    return 0;
}

QAbstractSeries *DeclarativeChart::createSeries(int type, QString name, QAbstractAxis *axisX, QAbstractAxis *axisY)
{
    QAbstractSeries *series = 0;

    switch (type) {
    case DeclarativeChart::SeriesTypeLine:
        series = new DeclarativeLineSeries();
        break;
    case DeclarativeChart::SeriesTypeArea: {
        DeclarativeAreaSeries *area = new DeclarativeAreaSeries();
        DeclarativeLineSeries *line = new DeclarativeLineSeries();
        line->setParent(area);
        area->setUpperSeries(line);
        series = area;
        break;
    }
    case DeclarativeChart::SeriesTypeStackedBar:
        series = new DeclarativeStackedBarSeries();
        break;
    case DeclarativeChart::SeriesTypePercentBar:
        series = new DeclarativePercentBarSeries();
        break;
    case DeclarativeChart::SeriesTypeBar:
        series = new DeclarativeBarSeries();
        break;
    case DeclarativeChart::SeriesTypeHorizontalBar:
        series = new DeclarativeHorizontalBarSeries();
        break;
    case DeclarativeChart::SeriesTypeHorizontalPercentBar:
        series = new DeclarativeHorizontalPercentBarSeries();
        break;
    case DeclarativeChart::SeriesTypeHorizontalStackedBar:
        series = new DeclarativeHorizontalStackedBarSeries();
        break;
    case DeclarativeChart::SeriesTypeBoxPlot:
        series = new DeclarativeBoxPlotSeries();
        break;
    case DeclarativeChart::SeriesTypePie:
        series = new DeclarativePieSeries();
        break;
    case DeclarativeChart::SeriesTypeScatter:
        series = new DeclarativeScatterSeries();
        break;
    case DeclarativeChart::SeriesTypeSpline:
        series = new DeclarativeSplineSeries();
        break;
    default:
        qWarning() << "Illegal series type";
    }

    if (series) {
        // Connect to axis changed signals (unless this is a pie series)
        if (!qobject_cast<DeclarativePieSeries *>(series)) {
            connect(series, SIGNAL(axisXChanged(QAbstractAxis*)), this, SLOT(handleAxisXSet(QAbstractAxis*)));
            connect(series, SIGNAL(axisXTopChanged(QAbstractAxis*)), this, SLOT(handleAxisXSet(QAbstractAxis*)));
            connect(series, SIGNAL(axisYChanged(QAbstractAxis*)), this, SLOT(handleAxisYSet(QAbstractAxis*)));
            connect(series, SIGNAL(axisYRightChanged(QAbstractAxis*)), this, SLOT(handleAxisYRightSet(QAbstractAxis*)));
        }

        series->setName(name);
        m_chart->addSeries(series);

        if (!axisX || !axisY)
            initializeAxes(series);

        if (axisX)
            setAxisX(axisX, series);
        if (axisY)
            setAxisY(axisY, series);
    }

    return series;
}

void DeclarativeChart::removeSeries(QAbstractSeries *series)
{
    if (series)
        m_chart->removeSeries(series);
    else
        qWarning("removeSeries: cannot remove null");
}

void DeclarativeChart::setAxisX(QAbstractAxis *axis, QAbstractSeries *series)
{
    if (axis && series)
        seriesAxisAttachHelper(series, axis, Qt::Horizontal, Qt::AlignBottom);
}

void DeclarativeChart::setAxisY(QAbstractAxis *axis, QAbstractSeries *series)
{
    if (axis && series)
        seriesAxisAttachHelper(series, axis, Qt::Vertical, Qt::AlignLeft);
}

QAbstractAxis *DeclarativeChart::defaultAxis(Qt::Orientation orientation, QAbstractSeries *series)
{
    if (!series) {
        qWarning() << "No axis type defined for null series";
        return 0;
    }

    foreach (QAbstractAxis *existingAxis, m_chart->axes(orientation)) {
        if (existingAxis->type() == series->d_ptr->defaultAxisType(orientation))
            return existingAxis;
    }

    switch (series->d_ptr->defaultAxisType(orientation)) {
    case QAbstractAxis::AxisTypeValue:
        return new QValueAxis(this);
    case QAbstractAxis::AxisTypeBarCategory:
        return new QBarCategoryAxis(this);
    case QAbstractAxis::AxisTypeCategory:
        return new QCategoryAxis(this);
#ifndef QT_ON_ARM
    case QAbstractAxis::AxisTypeDateTime:
        return new QDateTimeAxis(this);
#endif
    case QAbstractAxis::AxisTypeLogValue:
        return new QLogValueAxis(this);
    default:
        // assume AxisTypeNoAxis
        return 0;
    }
}

void DeclarativeChart::initializeAxes(QAbstractSeries *series)
{
    if (qobject_cast<DeclarativeLineSeries *>(series))
        doInitializeAxes(series, qobject_cast<DeclarativeLineSeries *>(series)->m_axes);
    else if (qobject_cast<DeclarativeScatterSeries *>(series))
        doInitializeAxes(series, qobject_cast<DeclarativeScatterSeries *>(series)->m_axes);
    else if (qobject_cast<DeclarativeSplineSeries *>(series))
        doInitializeAxes(series, qobject_cast<DeclarativeSplineSeries *>(series)->m_axes);
    else if (qobject_cast<DeclarativeAreaSeries *>(series))
        doInitializeAxes(series, qobject_cast<DeclarativeAreaSeries *>(series)->m_axes);
    else if (qobject_cast<DeclarativeBarSeries *>(series))
        doInitializeAxes(series, qobject_cast<DeclarativeBarSeries *>(series)->m_axes);
    else if (qobject_cast<DeclarativeStackedBarSeries *>(series))
        doInitializeAxes(series, qobject_cast<DeclarativeStackedBarSeries *>(series)->m_axes);
    else if (qobject_cast<DeclarativePercentBarSeries *>(series))
        doInitializeAxes(series, qobject_cast<DeclarativePercentBarSeries *>(series)->m_axes);
    else if (qobject_cast<DeclarativeHorizontalBarSeries *>(series))
        doInitializeAxes(series, qobject_cast<DeclarativeHorizontalBarSeries *>(series)->m_axes);
    else if (qobject_cast<DeclarativeHorizontalStackedBarSeries *>(series))
        doInitializeAxes(series, qobject_cast<DeclarativeHorizontalStackedBarSeries *>(series)->m_axes);
    else if (qobject_cast<DeclarativeHorizontalPercentBarSeries *>(series))
        doInitializeAxes(series, qobject_cast<DeclarativeHorizontalPercentBarSeries *>(series)->m_axes);
    else if (qobject_cast<DeclarativeBoxPlotSeries *>(series))
        doInitializeAxes(series, qobject_cast<DeclarativeBoxPlotSeries *>(series)->m_axes);
    // else: do nothing
}

void DeclarativeChart::doInitializeAxes(QAbstractSeries *series, DeclarativeAxes *axes)
{
    // Initialize axis X
    if (axes->axisX())
        axes->emitAxisXChanged();
    else if (axes->axisXTop())
        axes->emitAxisXTopChanged();
    else
        axes->setAxisX(defaultAxis(Qt::Horizontal, series));

    // Initialize axis Y
    if (axes->axisY())
        axes->emitAxisYChanged();
    else if (axes->axisYRight())
        axes->emitAxisYRightChanged();
    else
        axes->setAxisY(defaultAxis(Qt::Vertical, series));
}

#include "moc_declarativechart.cpp"

QT_CHARTS_END_NAMESPACE