1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtWidgets module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QSTACKEDLAYOUT_H 41 #define QSTACKEDLAYOUT_H 42 43 #include <QtWidgets/qtwidgetsglobal.h> 44 #include <QtWidgets/qlayout.h> 45 46 QT_BEGIN_NAMESPACE 47 48 49 class QStackedLayoutPrivate; 50 51 class Q_WIDGETS_EXPORT QStackedLayout : public QLayout 52 { 53 Q_OBJECT 54 Q_DECLARE_PRIVATE(QStackedLayout) 55 Q_PROPERTY(int currentIndex READ currentIndex WRITE setCurrentIndex NOTIFY currentChanged) 56 Q_PROPERTY(StackingMode stackingMode READ stackingMode WRITE setStackingMode) 57 QDOC_PROPERTY(int count READ count) 58 59 public: 60 enum StackingMode { 61 StackOne, 62 StackAll 63 }; 64 Q_ENUM(StackingMode) 65 66 QStackedLayout(); 67 explicit QStackedLayout(QWidget *parent); 68 explicit QStackedLayout(QLayout *parentLayout); 69 ~QStackedLayout(); 70 71 int addWidget(QWidget *w); 72 int insertWidget(int index, QWidget *w); 73 74 QWidget *currentWidget() const; 75 int currentIndex() const; 76 using QLayout::widget; 77 QWidget *widget(int) const; 78 int count() const override; 79 80 StackingMode stackingMode() const; 81 void setStackingMode(StackingMode stackingMode); 82 83 // abstract virtual functions: 84 void addItem(QLayoutItem *item) override; 85 QSize sizeHint() const override; 86 QSize minimumSize() const override; 87 QLayoutItem *itemAt(int) const override; 88 QLayoutItem *takeAt(int) override; 89 void setGeometry(const QRect &rect) override; 90 bool hasHeightForWidth() const override; 91 int heightForWidth(int width) const override; 92 93 Q_SIGNALS: 94 void widgetRemoved(int index); 95 void currentChanged(int index); 96 97 public Q_SLOTS: 98 void setCurrentIndex(int index); 99 void setCurrentWidget(QWidget *w); 100 101 private: 102 Q_DISABLE_COPY(QStackedLayout) 103 }; 104 105 QT_END_NAMESPACE 106 107 #endif // QSTACKEDLAYOUT_H 108