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 QLISTWIDGET_P_H 41 #define QLISTWIDGET_P_H 42 43 // 44 // W A R N I N G 45 // ------------- 46 // 47 // This file is not part of the Qt API. This header file may change 48 // from version to version without notice, or even be removed. 49 // 50 // We mean it. 51 // 52 53 #include <QtWidgets/private/qtwidgetsglobal_p.h> 54 #include <QtCore/qabstractitemmodel.h> 55 #include <QtWidgets/qabstractitemview.h> 56 #include <QtWidgets/qlistwidget.h> 57 #include <qitemdelegate.h> 58 #include <private/qlistview_p.h> 59 #include <private/qwidgetitemdata_p.h> 60 61 QT_REQUIRE_CONFIG(listwidget); 62 63 QT_BEGIN_NAMESPACE 64 65 class QListModelLessThan 66 { 67 public: operator()68 inline bool operator()(QListWidgetItem *i1, QListWidgetItem *i2) const 69 { return *i1 < *i2; } 70 }; 71 72 class QListModelGreaterThan 73 { 74 public: operator()75 inline bool operator()(QListWidgetItem *i1, QListWidgetItem *i2) const 76 { return *i2 < *i1; } 77 }; 78 79 class Q_AUTOTEST_EXPORT QListModel : public QAbstractListModel 80 { 81 Q_OBJECT 82 friend class QListWidget; 83 84 public: 85 QListModel(QListWidget *parent); 86 ~QListModel(); 87 88 void clear(); 89 QListWidgetItem *at(int row) const; 90 void insert(int row, QListWidgetItem *item); 91 void insert(int row, const QStringList &items); 92 void remove(QListWidgetItem *item); 93 QListWidgetItem *take(int row); 94 void move(int srcRow, int dstRow); 95 96 int rowCount(const QModelIndex &parent = QModelIndex()) const override; 97 98 QModelIndex index(const QListWidgetItem *item) const; 99 QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) const override; 100 101 QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override; 102 bool setData(const QModelIndex &index, const QVariant &value, int role) override; 103 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0) 104 bool clearItemData(const QModelIndex &index) override; 105 #endif 106 107 QMap<int, QVariant> itemData(const QModelIndex &index) const override; 108 109 bool insertRows(int row, int count = 1, const QModelIndex &parent = QModelIndex()) override; 110 bool removeRows(int row, int count = 1, const QModelIndex &parent = QModelIndex()) override; 111 bool moveRows(const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild) override; 112 113 Qt::ItemFlags flags(const QModelIndex &index) const override; 114 115 void sort(int column, Qt::SortOrder order) override; 116 void ensureSorted(int column, Qt::SortOrder order, int start, int end); 117 static bool itemLessThan(const QPair<QListWidgetItem*,int> &left, 118 const QPair<QListWidgetItem*,int> &right); 119 static bool itemGreaterThan(const QPair<QListWidgetItem*,int> &left, 120 const QPair<QListWidgetItem*,int> &right); 121 static QList<QListWidgetItem*>::iterator sortedInsertionIterator( 122 const QList<QListWidgetItem*>::iterator &begin, 123 const QList<QListWidgetItem*>::iterator &end, 124 Qt::SortOrder order, QListWidgetItem *item); 125 126 void itemChanged(QListWidgetItem *item, const QVector<int> &roles = QVector<int>()); 127 128 // dnd 129 QStringList mimeTypes() const override; 130 QMimeData *mimeData(const QModelIndexList &indexes) const override; 131 #if QT_CONFIG(draganddrop) 132 bool dropMimeData(const QMimeData *data, Qt::DropAction action, 133 int row, int column, const QModelIndex &parent) override; 134 Qt::DropActions supportedDropActions() const override; 135 #endif 136 137 QMimeData *internalMimeData() const; 138 private: 139 QList<QListWidgetItem*> items; 140 141 // A cache must be mutable if get-functions should have const modifiers 142 mutable QModelIndexList cachedIndexes; 143 }; 144 145 146 147 class QListWidgetPrivate : public QListViewPrivate 148 { Q_DECLARE_PUBLIC(QListWidget)149 Q_DECLARE_PUBLIC(QListWidget) 150 public: 151 QListWidgetPrivate() : QListViewPrivate(), sortOrder(Qt::AscendingOrder), sortingEnabled(false) {} listModel()152 inline QListModel *listModel() const { return qobject_cast<QListModel*>(model); } 153 void setup(); 154 void _q_emitItemPressed(const QModelIndex &index); 155 void _q_emitItemClicked(const QModelIndex &index); 156 void _q_emitItemDoubleClicked(const QModelIndex &index); 157 void _q_emitItemActivated(const QModelIndex &index); 158 void _q_emitItemEntered(const QModelIndex &index); 159 void _q_emitItemChanged(const QModelIndex &index); 160 void _q_emitCurrentItemChanged(const QModelIndex ¤t, const QModelIndex &previous); 161 void _q_sort(); 162 void _q_dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight); 163 Qt::SortOrder sortOrder; 164 bool sortingEnabled; 165 }; 166 167 class QListWidgetItemPrivate 168 { 169 public: QListWidgetItemPrivate(QListWidgetItem * item)170 QListWidgetItemPrivate(QListWidgetItem *item) : q(item), theid(-1) {} 171 QListWidgetItem *q; 172 QVector<QWidgetItemData> values; 173 int theid; 174 }; 175 176 QT_END_NAMESPACE 177 178 #endif // QLISTWIDGET_P_H 179