/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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.
**
** 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
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qquickcontrol_p.h"
#include "qquickcontrol_p_p.h"

QT_BEGIN_NAMESPACE

/*!
    \qmltype Control
    \inherits Item
    \instantiates QQuickControl
    \inqmlmodule QtQuick.Controls
    \brief A basic control type.

    TODO
*/

QQuickControlPrivate::QQuickControlPrivate() :
    hasTopPadding(false), hasLeftPadding(false), hasRightPadding(false), hasBottomPadding(false),
    padding(0), topPadding(0), leftPadding(0), rightPadding(0), bottomPadding(0),
    layoutDirection(Qt::LeftToRight), background(Q_NULLPTR)
{
}

void QQuickControlPrivate::mirrorChange()
{
    Q_Q(QQuickControl);
    q->mirrorChange();
    emit q->effectiveLayoutDirectionChanged();
}

void QQuickControlPrivate::setTopPadding(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    qreal oldPadding = q->topPadding();
    topPadding = value;
    hasTopPadding = !reset;
    if ((!reset && !qFuzzyCompare(oldPadding, value)) || (reset && !qFuzzyCompare(oldPadding, padding))) {
        emit q->topPaddingChanged();
        q->paddingChange();
    }
}

void QQuickControlPrivate::setLeftPadding(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    qreal oldPadding = q->leftPadding();
    leftPadding = value;
    hasLeftPadding = !reset;
    if ((!reset && !qFuzzyCompare(oldPadding, value)) || (reset && !qFuzzyCompare(oldPadding, padding))) {
        emit q->leftPaddingChanged();
        q->paddingChange();
    }
}

void QQuickControlPrivate::setRightPadding(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    qreal oldPadding = q->rightPadding();
    rightPadding = value;
    hasRightPadding = !reset;
    if ((!reset && !qFuzzyCompare(oldPadding, value)) || (reset && !qFuzzyCompare(oldPadding, padding))) {
        emit q->rightPaddingChanged();
        q->paddingChange();
    }
}

void QQuickControlPrivate::setBottomPadding(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    qreal oldPadding = q->bottomPadding();
    bottomPadding = value;
    hasBottomPadding = !reset;
    if ((!reset && !qFuzzyCompare(oldPadding, value)) || (reset && !qFuzzyCompare(oldPadding, padding))) {
        emit q->bottomPaddingChanged();
        q->paddingChange();
    }
}

QQuickControl::QQuickControl(QQuickItem *parent) :
    QQuickItem(*(new QQuickControlPrivate), parent)
{
}

QQuickControl::QQuickControl(QQuickControlPrivate &dd, QQuickItem *parent) :
    QQuickItem(dd, parent)
{
}

/*!
    \qmlproperty real QtQuickControls2::Control::padding
    \qmlproperty real QtQuickControls2::Control::topPadding
    \qmlproperty real QtQuickControls2::Control::leftPadding
    \qmlproperty real QtQuickControls2::Control::rightPadding
    \qmlproperty real QtQuickControls2::Control::bottomPadding

    These properties hold the padding.
*/
qreal QQuickControl::padding() const
{
    Q_D(const QQuickControl);
    return d->padding;
}

void QQuickControl::setPadding(qreal padding)
{
    Q_D(QQuickControl);
    if (qFuzzyCompare(d->padding, padding))
        return;
    d->padding = padding;
    emit paddingChanged();
    if (!d->hasTopPadding)
        emit topPaddingChanged();
    if (!d->hasLeftPadding)
        emit leftPaddingChanged();
    if (!d->hasRightPadding)
        emit rightPaddingChanged();
    if (!d->hasBottomPadding)
        emit bottomPaddingChanged();
    paddingChange();
}

void QQuickControl::resetPadding()
{
    setPadding(0);
}

qreal QQuickControl::topPadding() const
{
    Q_D(const QQuickControl);
    if (d->hasTopPadding)
        return d->topPadding;
    return d->padding;
}

void QQuickControl::setTopPadding(qreal padding)
{
    Q_D(QQuickControl);
    d->setTopPadding(padding);
}

void QQuickControl::resetTopPadding()
{
    Q_D(QQuickControl);
    d->setTopPadding(0, true);
}

qreal QQuickControl::leftPadding() const
{
    Q_D(const QQuickControl);
    if (d->hasLeftPadding)
        return d->leftPadding;
    return d->padding;
}

void QQuickControl::setLeftPadding(qreal padding)
{
    Q_D(QQuickControl);
    d->setLeftPadding(padding);
}

void QQuickControl::resetLeftPadding()
{
    Q_D(QQuickControl);
    d->setLeftPadding(0, true);
}

qreal QQuickControl::rightPadding() const
{
    Q_D(const QQuickControl);
    if (d->hasRightPadding)
        return d->rightPadding;
    return d->padding;
}

void QQuickControl::setRightPadding(qreal padding)
{
    Q_D(QQuickControl);
    d->setRightPadding(padding);
}

void QQuickControl::resetRightPadding()
{
    Q_D(QQuickControl);
    d->setRightPadding(0, true);
}

qreal QQuickControl::bottomPadding() const
{
    Q_D(const QQuickControl);
    if (d->hasBottomPadding)
        return d->bottomPadding;
    return d->padding;
}

void QQuickControl::setBottomPadding(qreal padding)
{
    Q_D(QQuickControl);
    d->setBottomPadding(padding);
}

void QQuickControl::resetBottomPadding()
{
    Q_D(QQuickControl);
    d->setBottomPadding(0, true);
}

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

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

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

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

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

/*!
    \qmlproperty Item QtQuickControls2::Control::background

    This property holds the background item.
*/
QQuickItem *QQuickControl::background() const
{
    Q_D(const QQuickControl);
    return d->background;
}

void QQuickControl::setBackground(QQuickItem *background)
{
    Q_D(QQuickControl);
    if (d->background != background) {
        delete d->background;
        d->background = background;
        if (background) {
            background->setParentItem(this);
            if (qFuzzyIsNull(background->z()))
                background->setZ(-1);
        }
        emit backgroundChanged();
    }
}

void QQuickControl::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
{
    Q_D(QQuickControl);
    QQuickItem::geometryChanged(newGeometry, oldGeometry);
    if (d->background) {
        QQuickItemPrivate *p = QQuickItemPrivate::get(d->background);
        if (!p->widthValid) {
            d->background->setWidth(newGeometry.width());
            p->widthValid = false;
        }
        if (!p->heightValid) {
            d->background->setHeight(newGeometry.height());
            p->heightValid = false;
        }
    }
}

bool QQuickControl::isMirrored() const
{
    Q_D(const QQuickControl);
    return d->isMirrored();
}

void QQuickControl::mirrorChange()
{
}

void QQuickControl::paddingChange()
{
}

QT_END_NAMESPACE