qstackedwidget.cpp

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "qstackedwidget.h"
 
#include <qstackedlayout.h>
#include <qevent.h>
#include <private/qframe_p.h>
 
QT_BEGIN_NAMESPACE
 
class QStackedWidgetPrivate : public QFramePrivate
{
    Q_DECLARE_PUBLIC(QStackedWidget)
public:
    QStackedWidgetPrivate():layout(nullptr){}
    QStackedLayout *layout;
};
 
QStackedWidget::QStackedWidget(QWidget *parent)
    : QFrame(*new QStackedWidgetPrivate, parent)
{
    Q_D(QStackedWidget);
    d->layout = new QStackedLayout(this);
    connect(d->layout, &QStackedLayout::widgetRemoved,
            this, &QStackedWidget::widgetRemoved);
    connect(d->layout, &QStackedLayout::currentChanged,
            this, &QStackedWidget::currentChanged);
}
 
QStackedWidget::~QStackedWidget()
{
}
 
int QStackedWidget::addWidget(QWidget *widget)
{
    return d_func()->layout->addWidget(widget);
}
 
int QStackedWidget::insertWidget(int index, QWidget *widget)
{
    return d_func()->layout->insertWidget(index, widget);
}
 
void QStackedWidget::removeWidget(QWidget *widget)
{
    d_func()->layout->removeWidget(widget);
}
 
void QStackedWidget::setCurrentIndex(int index)
{
    d_func()->layout->setCurrentIndex(index);
}
 
int QStackedWidget::currentIndex() const
{
    return d_func()->layout->currentIndex();
}
 
QWidget *QStackedWidget::currentWidget() const
{
    return d_func()->layout->currentWidget();
}
 
 
void QStackedWidget::setCurrentWidget(QWidget *widget)
{
    Q_D(QStackedWidget);
    if (Q_UNLIKELY(d->layout->indexOf(widget) == -1)) {
        qWarning("QStackedWidget::setCurrentWidget: widget %p not contained in stack", widget);
        return;
    }
    d->layout->setCurrentWidget(widget);
}
 
int QStackedWidget::indexOf(const QWidget *widget) const
{
    return d_func()->layout->indexOf(widget);
}
 
QWidget *QStackedWidget::widget(int index) const
{
    return d_func()->layout->widget(index);
}
 
int QStackedWidget::count() const
{
    return d_func()->layout->count();
}
 
bool QStackedWidget::event(QEvent *e)
{
    return QFrame::event(e);
}
 
QT_END_NAMESPACE
 
#include "moc_qstackedwidget.cpp"