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#include "qquickgroupbox_p.h"
#include "qquickframe_p_p.h"

#include <QtGui/qpa/qplatformtheme.h>

QT_BEGIN_NAMESPACE

/*!
    \qmltype GroupBox
    \inherits Frame
    \instantiates QQuickGroupBox
    \inqmlmodule Qt.labs.controls
    \ingroup qtlabscontrols-containers
    \brief A group box control.

    GroupBox is used to layout a logical group of controls together, within
    a titled visual frame. GroupBox does not provide a layout of its own, but
    requires you to position its contents, for instance by creating a \l RowLayout
    or a \l ColumnLayout.

    If only a single item is used within a GroupBox, it will resize to fit the
    implicit size of its contained item. This makes it particularly suitable
    for use together with layouts.

    \image qtlabscontrols-groupbox.png

    \snippet qtlabscontrols-groupbox.qml 1

    \section2 Checkable GroupBox

    Even though GroupBox has no built-in check box, it is straightforward
    to create a checkable GroupBox by pairing it with a CheckBox.

    \image qtlabscontrols-groupbox-checkable.png

    It is a common pattern to enable or disable the groupbox's children when
    its check box is toggled on/off, respectively, but the semantics of the
    check box is left to the application to decide.

    \snippet qtlabscontrols-groupbox-checkable.qml 1

    \sa CheckBox, {Customizing GroupBox}, {Container Controls}
*/

class QQuickGroupBoxPrivate : public QQuickFramePrivate
{
public:
    QQuickGroupBoxPrivate() : label(Q_NULLPTR) { }

    QString title;
    QQuickItem *label;
};

QQuickGroupBox::QQuickGroupBox(QQuickItem *parent) :
    QQuickFrame(*(new QQuickGroupBoxPrivate), parent)
{
}

/*!
    \qmlproperty string Qt.labs.controls::GroupBox::title

    This property holds the title.
*/
QString QQuickGroupBox::title() const
{
    Q_D(const QQuickGroupBox);
    return d->title;
}

void QQuickGroupBox::setTitle(const QString &title)
{
    Q_D(QQuickGroupBox);
    if (d->title != title) {
        d->title = title;
        emit titleChanged();
    }
}

/*!
    \qmlproperty Item Qt.labs.controls::GroupBox::label

    This property holds the label item that visualizes \l title.

    \sa {Customizing GroupBox}
*/
QQuickItem *QQuickGroupBox::label() const
{
    Q_D(const QQuickGroupBox);
    return d->label;
}

void QQuickGroupBox::setLabel(QQuickItem *label)
{
    Q_D(QQuickGroupBox);
    if (d->label != label) {
        delete d->label;
        d->label = label;
        if (label && !label->parentItem())
            label->setParentItem(this);
        emit labelChanged();
    }
}

QFont QQuickGroupBox::defaultFont() const
{
    return QQuickControlPrivate::themeFont(QPlatformTheme::GroupBoxTitleFont);
}

QT_END_NAMESPACE