qstackedlayout.h

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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
 
#ifndef QSTACKEDLAYOUT_H
#define QSTACKEDLAYOUT_H
 
#include <QtWidgets/qtwidgetsglobal.h>
#include <QtWidgets/qlayout.h>
 
QT_BEGIN_NAMESPACE
 
 
class QStackedLayoutPrivate;
 
class Q_WIDGETS_EXPORT QStackedLayout : public QLayout
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QStackedLayout)
    Q_PROPERTY(int currentIndex READ currentIndex WRITE setCurrentIndex NOTIFY currentChanged)
    Q_PROPERTY(StackingMode stackingMode READ stackingMode WRITE setStackingMode)
    QDOC_PROPERTY(int count READ count)
 
public:
    enum StackingMode {
        StackOne,
        StackAll
    };
    Q_ENUM(StackingMode)
 
    QStackedLayout();
    explicit QStackedLayout(QWidget *parent);
    explicit QStackedLayout(QLayout *parentLayout);
    ~QStackedLayout();
 
    int addWidget(QWidget *w);
    int insertWidget(int index, QWidget *w);
 
    QWidget *currentWidget() const;
    int currentIndex() const;
    using QLayout::widget;
    QWidget *widget(int) const;
    int count() const override;
 
    StackingMode stackingMode() const;
    void setStackingMode(StackingMode stackingMode);
 
    // abstract virtual functions:
    void addItem(QLayoutItem *item) override;
    QSize sizeHint() const override;
    QSize minimumSize() const override;
    QLayoutItem *itemAt(int) const override;
    QLayoutItem *takeAt(int) override;
    void setGeometry(const QRect &rect) override;
    bool hasHeightForWidth() const override;
    int heightForWidth(int width) const override;
 
Q_SIGNALS:
    void widgetRemoved(int index);
    void currentChanged(int index);
    void widgetAdded(int index);
 
public Q_SLOTS:
    void setCurrentIndex(int index);
    void setCurrentWidget(QWidget *w);
 
private:
    Q_DISABLE_COPY(QStackedLayout)
};
 
QT_END_NAMESPACE
 
#endif // QSTACKEDLAYOUT_H