/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Quick Controls module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
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** accordance with the commercial license agreement provided with the
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** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
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** $QT_END_LICENSE$
**
****************************************************************************/

#include "qquickabstractprogressbar_p.h"
#include "qquickcontrol_p_p.h"

QT_BEGIN_NAMESPACE

/*!
    \qmltype ProgressBar
    \inherits Control
    \instantiates QQuickAbstractProgressBar
    \inqmlmodule QtQuick.Controls
    \ingroup indicators
    \brief A progress bar.

    TODO
*/

class QQuickAbstractProgressBarPrivate : public QQuickControlPrivate
{
public:
    QQuickAbstractProgressBarPrivate() : value(0), indeterminate(false),
        layoutDirection(Qt::LeftToRight), indicator(Q_NULLPTR) { }

    qreal value;
    bool indeterminate;
    Qt::LayoutDirection layoutDirection;
    QQuickItem *indicator;
};

QQuickAbstractProgressBar::QQuickAbstractProgressBar(QQuickItem *parent) :
    QQuickControl(*(new QQuickAbstractProgressBarPrivate), parent)
{
}

/*!
    \qmlproperty real QtQuickControls2::ProgressBar::value

    TODO
*/
qreal QQuickAbstractProgressBar::value() const
{
    Q_D(const QQuickAbstractProgressBar);
    return d->value;
}

void QQuickAbstractProgressBar::setValue(qreal value)
{
    Q_D(QQuickAbstractProgressBar);
    value = qBound(0.0, value, 1.0);
    if (!qFuzzyCompare(d->value, value)) {
        d->value = value;
        emit valueChanged();
        emit visualPositionChanged();
    }
}

/*!
    \qmlproperty real QtQuickControls2::ProgressBar::visualPosition

    TODO
*/
qreal QQuickAbstractProgressBar::visualPosition() const
{
    Q_D(const QQuickAbstractProgressBar);
    if (effectiveLayoutDirection() == Qt::RightToLeft)
        return 1.0 - d->value;
    return d->value;
}

/*!
    \qmlproperty bool QtQuickControls2::ProgressBar::indeterminate

    TODO
*/
bool QQuickAbstractProgressBar::isIndeterminate() const
{
    Q_D(const QQuickAbstractProgressBar);
    return d->indeterminate;
}

void QQuickAbstractProgressBar::setIndeterminate(bool indeterminate)
{
    Q_D(QQuickAbstractProgressBar);
    if (d->indeterminate != indeterminate) {
        d->indeterminate = indeterminate;
        emit indeterminateChanged();
    }
}

/*!
    \qmlproperty enumeration QtQuickControls2::ProgressBar::layoutDirection

    TODO
*/
Qt::LayoutDirection QQuickAbstractProgressBar::layoutDirection() const
{
    Q_D(const QQuickAbstractProgressBar);
    return d->layoutDirection;
}

/*!
    \qmlproperty enumeration QtQuickControls2::ProgressBar::effectiveLayoutDirection

    TODO
*/
Qt::LayoutDirection QQuickAbstractProgressBar::effectiveLayoutDirection() const
{
    Q_D(const QQuickAbstractProgressBar);
    if (isMirrored())
        return d->layoutDirection == Qt::RightToLeft ? Qt::LeftToRight : Qt::RightToLeft;
    return d->layoutDirection;
}

void QQuickAbstractProgressBar::setLayoutDirection(Qt::LayoutDirection direction)
{
    Q_D(QQuickAbstractProgressBar);
    if (d->layoutDirection != direction) {
        d->layoutDirection = direction;
        emit layoutDirectionChanged();
        emit effectiveLayoutDirectionChanged();
    }
}

/*!
    \qmlproperty Item QtQuickControls2::ProgressBar::indicator

    TODO
*/
QQuickItem *QQuickAbstractProgressBar::indicator() const
{
    Q_D(const QQuickAbstractProgressBar);
    return d->indicator;
}

void QQuickAbstractProgressBar::setIndicator(QQuickItem *indicator)
{
    Q_D(QQuickAbstractProgressBar);
    if (d->indicator != indicator) {
        delete d->indicator;
        d->indicator = indicator;
        if (indicator && !indicator->parentItem())
            indicator->setParentItem(this);
        emit indicatorChanged();
    }
}

void QQuickAbstractProgressBar::mirrorChange()
{
    emit effectiveLayoutDirectionChanged();
    emit visualPositionChanged();
}

QT_END_NAMESPACE