include/QtWidgets/qstackedlayout.h

0001 // Copyright (C) 2016 The Qt Company Ltd.
0002 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
0003
0004 #ifndef QSTACKEDLAYOUT_H
0005 #define QSTACKEDLAYOUT_H
0006
0007 #include <QtWidgets/qtwidgetsglobal.h>
0008 #include <QtWidgets/qlayout.h>
0009
0010 QT_BEGIN_NAMESPACE
0011
0012
0013 class QStackedLayoutPrivate;
0014
0015 class Q_WIDGETS_EXPORT QStackedLayout : public QLayout
0016 {
0017     Q_OBJECT
0018     Q_DECLARE_PRIVATE(QStackedLayout)
0019     Q_PROPERTY(int currentIndex READ currentIndex WRITE setCurrentIndex NOTIFY currentChanged)
0020     Q_PROPERTY(StackingMode stackingMode READ stackingMode WRITE setStackingMode)
0021     QDOC_PROPERTY(int count READ count)
0022
0023 public:
0024     enum StackingMode {
0025         StackOne,
0026         StackAll
0027     };
0028     Q_ENUM(StackingMode)
0029
0030     QStackedLayout();
0031     explicit QStackedLayout(QWidget *parent);
0032     explicit QStackedLayout(QLayout *parentLayout);
0033     ~QStackedLayout();
0034
0035     int addWidget(QWidget *w);
0036     int insertWidget(int index, QWidget *w);
0037
0038     QWidget *currentWidget() const;
0039     int currentIndex() const;
0040     using QLayout::widget;
0041     QWidget *widget(int) const;
0042     int count() const override;
0043
0044     StackingMode stackingMode() const;
0045     void setStackingMode(StackingMode stackingMode);
0046
0047     // abstract virtual functions:
0048     void addItem(QLayoutItem *item) override;
0049     QSize sizeHint() const override;
0050     QSize minimumSize() const override;
0051     QLayoutItem *itemAt(int) const override;
0052     QLayoutItem *takeAt(int) override;
0053     void setGeometry(const QRect &rect) override;
0054     bool hasHeightForWidth() const override;
0055     int heightForWidth(int width) const override;
0056
0057 Q_SIGNALS:
0058     void widgetRemoved(int index);
0059     void currentChanged(int index);
0060
0061 public Q_SLOTS:
0062     void setCurrentIndex(int index);
0063     void setCurrentWidget(QWidget *w);
0064
0065 private:
0066     Q_DISABLE_COPY(QStackedLayout)
0067 };
0068
0069 QT_END_NAMESPACE
0070
0071 #endif // QSTACKEDLAYOUT_H