candlestickbodywicksanimation.cpp

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// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

#include <private/candlestick_p.h>

#include <private/candlestickanimation_p.h>

#include <private/candlestickbodywicksanimation_p.h>

QT_BEGIN_NAMESPACE

CandlestickBodyWicksAnimation::CandlestickBodyWicksAnimation(Candlestick *candlestick,

                                                             CandlestickAnimation *animation,

                                                             int duration, QEasingCurve &curve)

    : ChartAnimation(candlestick),

      m_candlestick(candlestick),

      m_candlestickAnimation(animation),

      m_changeAnimation(false)

    setDuration(duration);

    setEasingCurve(curve);

CandlestickBodyWicksAnimation::~CandlestickBodyWicksAnimation()

    if (m_candlestickAnimation)

        m_candlestickAnimation->removeCandlestickAnimation(m_candlestick);

void CandlestickBodyWicksAnimation::setup(const CandlestickData &startData,

                                          const CandlestickData &endData)

    setKeyValueAt(0.0, QVariant::fromValue(startData));

    setKeyValueAt(1.0, QVariant::fromValue(endData));

void CandlestickBodyWicksAnimation::setStartData(const CandlestickData &startData)

    if (state() != QAbstractAnimation::Stopped)

        stop();

    setStartValue(QVariant::fromValue(startData));

void CandlestickBodyWicksAnimation::setEndData(const CandlestickData &endData)

    if (state() != QAbstractAnimation::Stopped)

        stop();

    setEndValue(QVariant::fromValue(endData));

void CandlestickBodyWicksAnimation::updateCurrentValue(const QVariant &value)

    const CandlestickData data = qvariant_cast<CandlestickData>(value);

    m_candlestick->setLayout(data);

QVariant CandlestickBodyWicksAnimation::interpolated(const QVariant &from, const QVariant &to,

                                                     qreal progress) const

    CandlestickData startData = qvariant_cast<CandlestickData>(from);

    CandlestickData endData = qvariant_cast<CandlestickData>(to);

    CandlestickData result = endData;

    if (m_changeAnimation) {

        result.m_open = startData.m_open + progress * (endData.m_open - startData.m_open);

        result.m_high = startData.m_high + progress * (endData.m_high - startData.m_high);

        result.m_low = startData.m_low + progress * (endData.m_low - startData.m_low);

        result.m_close = startData.m_close + progress * (endData.m_close - startData.m_close);

    } else {

        const qreal median = (endData.m_open + endData.m_close) / 2;

        result.m_low = median + progress * (endData.m_low - median);

        result.m_close = median + progress * (endData.m_close - median);

        result.m_open = median + progress * (endData.m_open - median);

        result.m_high = median + progress * (endData.m_high - median);

    return QVariant::fromValue(result);

QT_END_NAMESPACE

#include "moc_candlestickbodywicksanimation_p.cpp"