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 QGRAPHICSLINEARLAYOUT_H 41 #define QGRAPHICSLINEARLAYOUT_H 42 43 #include <QtWidgets/qtwidgetsglobal.h> 44 #include <QtWidgets/qgraphicsitem.h> 45 #include <QtWidgets/qgraphicslayout.h> 46 47 QT_REQUIRE_CONFIG(graphicsview); 48 49 QT_BEGIN_NAMESPACE 50 51 class QGraphicsLinearLayoutPrivate; 52 53 class Q_WIDGETS_EXPORT QGraphicsLinearLayout : public QGraphicsLayout 54 { 55 public: 56 QGraphicsLinearLayout(QGraphicsLayoutItem *parent = nullptr); 57 QGraphicsLinearLayout(Qt::Orientation orientation, QGraphicsLayoutItem *parent = nullptr); 58 virtual ~QGraphicsLinearLayout(); 59 60 void setOrientation(Qt::Orientation orientation); 61 Qt::Orientation orientation() const; 62 addItem(QGraphicsLayoutItem * item)63 inline void addItem(QGraphicsLayoutItem *item) { insertItem(-1, item); } 64 inline void addStretch(int stretch = 1) { insertStretch(-1, stretch); } 65 66 void insertItem(int index, QGraphicsLayoutItem *item); 67 void insertStretch(int index, int stretch = 1); 68 69 void removeItem(QGraphicsLayoutItem *item); 70 void removeAt(int index) override; 71 72 void setSpacing(qreal spacing); 73 qreal spacing() const; 74 void setItemSpacing(int index, qreal spacing); 75 qreal itemSpacing(int index) const; 76 77 void setStretchFactor(QGraphicsLayoutItem *item, int stretch); 78 int stretchFactor(QGraphicsLayoutItem *item) const; 79 80 void setAlignment(QGraphicsLayoutItem *item, Qt::Alignment alignment); 81 Qt::Alignment alignment(QGraphicsLayoutItem *item) const; 82 83 void setGeometry(const QRectF &rect) override; 84 85 int count() const override; 86 QGraphicsLayoutItem *itemAt(int index) const override; 87 88 void invalidate() override; 89 QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const override; 90 91 #if 0 // ### 92 Q5SizePolicy::ControlTypes controlTypes(LayoutSide side) const; 93 #endif 94 95 void dump(int indent = 0) const; 96 97 protected: 98 #if 0 99 QSize contentsSizeHint(Qt::SizeHint which, const QSize &constraint = QSize()) const; 100 #endif 101 102 private: 103 Q_DISABLE_COPY(QGraphicsLinearLayout) 104 Q_DECLARE_PRIVATE(QGraphicsLinearLayout) 105 }; 106 107 QT_END_NAMESPACE 108 109 #endif 110