1 | // Copyright (C) 2016 The Qt Company Ltd. |
2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
3 | |
4 | #ifndef QLISTWIDGET_P_H |
5 | #define QLISTWIDGET_P_H |
6 | |
7 | // |
8 | // W A R N I N G |
9 | // ------------- |
10 | // |
11 | // This file is not part of the Qt API. This header file may change |
12 | // from version to version without notice, or even be removed. |
13 | // |
14 | // We mean it. |
15 | // |
16 | |
17 | #include <QtWidgets/private/qtwidgetsglobal_p.h> |
18 | #include <QtCore/qabstractitemmodel.h> |
19 | #include <QtWidgets/qabstractitemview.h> |
20 | #include <QtWidgets/qlistwidget.h> |
21 | #include <private/qlistview_p.h> |
22 | #include <private/qwidgetitemdata_p.h> |
23 | |
24 | #include <array> |
25 | |
26 | QT_REQUIRE_CONFIG(listwidget); |
27 | |
28 | QT_BEGIN_NAMESPACE |
29 | |
30 | class QListModelLessThan |
31 | { |
32 | public: |
33 | inline bool operator()(QListWidgetItem *i1, QListWidgetItem *i2) const |
34 | { return *i1 < *i2; } |
35 | }; |
36 | |
37 | class QListModelGreaterThan |
38 | { |
39 | public: |
40 | inline bool operator()(QListWidgetItem *i1, QListWidgetItem *i2) const |
41 | { return *i2 < *i1; } |
42 | }; |
43 | |
44 | class Q_AUTOTEST_EXPORT QListModel : public QAbstractListModel |
45 | { |
46 | Q_OBJECT |
47 | friend class QListWidget; |
48 | |
49 | public: |
50 | QListModel(QListWidget *parent); |
51 | ~QListModel(); |
52 | |
53 | void clear(); |
54 | QListWidgetItem *at(int row) const; |
55 | void insert(int row, QListWidgetItem *item); |
56 | void insert(int row, const QStringList &items); |
57 | void remove(QListWidgetItem *item); |
58 | QListWidgetItem *take(int row); |
59 | void move(int srcRow, int dstRow); |
60 | |
61 | int rowCount(const QModelIndex &parent = QModelIndex()) const override; |
62 | |
63 | QModelIndex index(const QListWidgetItem *item) const; |
64 | QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) const override; |
65 | |
66 | QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override; |
67 | bool setData(const QModelIndex &index, const QVariant &value, int role) override; |
68 | bool clearItemData(const QModelIndex &index) override; |
69 | |
70 | QMap<int, QVariant> itemData(const QModelIndex &index) const override; |
71 | |
72 | bool insertRows(int row, int count = 1, const QModelIndex &parent = QModelIndex()) override; |
73 | bool removeRows(int row, int count = 1, const QModelIndex &parent = QModelIndex()) override; |
74 | bool moveRows(const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild) override; |
75 | |
76 | Qt::ItemFlags flags(const QModelIndex &index) const override; |
77 | |
78 | void sort(int column, Qt::SortOrder order) override; |
79 | void ensureSorted(int column, Qt::SortOrder order, int start, int end); |
80 | static bool itemLessThan(const QPair<QListWidgetItem*,int> &left, |
81 | const QPair<QListWidgetItem*,int> &right); |
82 | static bool itemGreaterThan(const QPair<QListWidgetItem*,int> &left, |
83 | const QPair<QListWidgetItem*,int> &right); |
84 | static QList<QListWidgetItem*>::iterator sortedInsertionIterator( |
85 | const QList<QListWidgetItem*>::iterator &begin, |
86 | const QList<QListWidgetItem*>::iterator &end, |
87 | Qt::SortOrder order, QListWidgetItem *item); |
88 | |
89 | void itemChanged(QListWidgetItem *item, const QList<int> &roles = QList<int>()); |
90 | |
91 | // dnd |
92 | QStringList mimeTypes() const override; |
93 | QMimeData *mimeData(const QModelIndexList &indexes) const override; |
94 | #if QT_CONFIG(draganddrop) |
95 | bool dropMimeData(const QMimeData *data, Qt::DropAction action, |
96 | int row, int column, const QModelIndex &parent) override; |
97 | Qt::DropActions supportedDropActions() const override; |
98 | #endif |
99 | |
100 | QMimeData *internalMimeData() const; |
101 | private: |
102 | QList<QListWidgetItem*> items; |
103 | |
104 | // A cache must be mutable if get-functions should have const modifiers |
105 | mutable QModelIndexList cachedIndexes; |
106 | }; |
107 | |
108 | |
109 | |
110 | class QListWidgetPrivate : public QListViewPrivate |
111 | { |
112 | Q_DECLARE_PUBLIC(QListWidget) |
113 | public: |
114 | QListWidgetPrivate() : QListViewPrivate(), sortOrder(Qt::AscendingOrder), sortingEnabled(false) {} |
115 | inline QListModel *listModel() const { return qobject_cast<QListModel*>(object: model); } |
116 | void setup(); |
117 | void clearConnections(); |
118 | void emitItemPressed(const QModelIndex &index); |
119 | void emitItemClicked(const QModelIndex &index); |
120 | void emitItemDoubleClicked(const QModelIndex &index); |
121 | void emitItemActivated(const QModelIndex &index); |
122 | void emitItemEntered(const QModelIndex &index); |
123 | void emitItemChanged(const QModelIndex &index); |
124 | void emitCurrentItemChanged(const QModelIndex ¤t, const QModelIndex &previous); |
125 | void sort(); |
126 | void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight); |
127 | Qt::SortOrder sortOrder; |
128 | bool sortingEnabled; |
129 | |
130 | std::array<QMetaObject::Connection, 8> connections; |
131 | std::array<QMetaObject::Connection, 2> selectionModelConnections; |
132 | }; |
133 | |
134 | class QListWidgetItemPrivate |
135 | { |
136 | public: |
137 | QListWidgetItemPrivate(QListWidgetItem *item) : q(item), theid(-1) {} |
138 | QListWidgetItem *q; |
139 | QList<QWidgetItemData> values; |
140 | int theid; |
141 | }; |
142 | |
143 | QT_END_NAMESPACE |
144 | |
145 | #endif // QLISTWIDGET_P_H |
146 | |