1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
|
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QTREEWIDGET_P_H
#define QTREEWIDGET_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. This header file may change
// from version to version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/qabstractitemmodel.h>
#include <private/qabstractitemmodel_p.h>
#include <QtCore/qpair.h>
#include <QtCore/qbasictimer.h>
#include <QtGui/qtreewidget.h>
#include <private/qtreeview_p.h>
#include <QtGui/qheaderview.h>
#ifndef QT_NO_TREEWIDGET
QT_BEGIN_NAMESPACE
class QTreeWidgetItem;
class QTreeWidgetItemIterator;
class QTreeModelPrivate;
class QTreeModel : public QAbstractItemModel
{
Q_OBJECT
friend class QTreeWidget;
friend class QTreeWidgetPrivate;
friend class QTreeWidgetItem;
friend class QTreeWidgetItemPrivate;
friend class QTreeWidgetItemIterator;
friend class QTreeWidgetItemIteratorPrivate;
public:
explicit QTreeModel(int columns = 0, QTreeWidget *parent = 0);
~QTreeModel();
inline QTreeWidget *view() const
{ return qobject_cast<QTreeWidget*>(QObject::parent()); }
void clear();
void setColumnCount(int columns);
QTreeWidgetItem *item(const QModelIndex &index) const;
void itemChanged(QTreeWidgetItem *item);
QModelIndex index(const QTreeWidgetItem *item, int column) const;
QModelIndex index(int row, int column, const QModelIndex &parent) const;
QModelIndex parent(const QModelIndex &child) const;
int rowCount(const QModelIndex &parent) const;
int columnCount(const QModelIndex &parent = QModelIndex()) const;
bool hasChildren(const QModelIndex &parent) const;
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
bool setData(const QModelIndex &index, const QVariant &value, int role);
QMap<int, QVariant> itemData(const QModelIndex &index) const;
QVariant headerData(int section, Qt::Orientation orientation, int role) const;
bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value,
int role);
Qt::ItemFlags flags(const QModelIndex &index) const;
void sort(int column, Qt::SortOrder order);
void ensureSorted(int column, Qt::SortOrder order,
int start, int end, const QModelIndex &parent);
static bool itemLessThan(const QPair<QTreeWidgetItem*,int> &left,
const QPair<QTreeWidgetItem*,int> &right);
static bool itemGreaterThan(const QPair<QTreeWidgetItem*,int> &left,
const QPair<QTreeWidgetItem*,int> &right);
static QList<QTreeWidgetItem*>::iterator sortedInsertionIterator(
const QList<QTreeWidgetItem*>::iterator &begin,
const QList<QTreeWidgetItem*>::iterator &end,
Qt::SortOrder order, QTreeWidgetItem *item);
bool insertRows(int row, int count, const QModelIndex &);
bool insertColumns(int column, int count, const QModelIndex &);
bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex());
// dnd
QStringList mimeTypes() const;
QMimeData *mimeData(const QModelIndexList &indexes) const;
bool dropMimeData(const QMimeData *data, Qt::DropAction action,
int row, int column, const QModelIndex &parent);
Qt::DropActions supportedDropActions() const;
QMimeData *internalMimeData() const;
inline QModelIndex createIndexFromItem(int row, int col, QTreeWidgetItem *item) const
{ return createIndex(row, col, item); }
protected:
QTreeModel(QTreeModelPrivate &, QTreeWidget *parent = 0);
void emitDataChanged(QTreeWidgetItem *item, int column);
void beginInsertItems(QTreeWidgetItem *parent, int row, int count);
void endInsertItems();
void beginRemoveItems(QTreeWidgetItem *parent, int row, int count);
void endRemoveItems();
void sortItems(QList<QTreeWidgetItem*> *items, int column, Qt::SortOrder order);
void timerEvent(QTimerEvent *);
private:
QTreeWidgetItem *rootItem;
QTreeWidgetItem *headerItem;
mutable QModelIndexList cachedIndexes;
QList<QTreeWidgetItemIterator*> iterators;
mutable QBasicTimer sortPendingTimer;
mutable bool skipPendingSort; //while doing internal operation we don't care about sorting
bool inline executePendingSort() const;
bool isChanging() const;
private:
Q_DECLARE_PRIVATE(QTreeModel)
public:
struct SkipSorting
{
const QTreeModel * const model;
const bool previous;
SkipSorting(const QTreeModel *m) : model(m), previous(model->skipPendingSort)
{ model->skipPendingSort = true; }
~SkipSorting() { model->skipPendingSort = previous; }
};
friend struct SkipSorting;
};
QT_BEGIN_INCLUDE_NAMESPACE
#include "private/qabstractitemmodel_p.h"
QT_END_INCLUDE_NAMESPACE
class QTreeModelPrivate : public QAbstractItemModelPrivate
{
Q_DECLARE_PUBLIC(QTreeModel)
};
class QTreeWidgetItemPrivate
{
public:
QTreeWidgetItemPrivate(QTreeWidgetItem *item)
: q(item), disabled(false), selected(false), rowGuess(-1), policy(QTreeWidgetItem::DontShowIndicatorWhenChildless) {}
void propagateDisabled(QTreeWidgetItem *item);
void sortChildren(int column, Qt::SortOrder order, bool climb);
QTreeWidgetItem *q;
QVariantList display;
uint disabled : 1;
uint selected : 1;
int rowGuess;
QTreeWidgetItem::ChildIndicatorPolicy policy;
};
inline bool QTreeModel::executePendingSort() const
{
if (!skipPendingSort && sortPendingTimer.isActive() && !isChanging()) {
sortPendingTimer.stop();
int column = view()->header()->sortIndicatorSection();
Qt::SortOrder order = view()->header()->sortIndicatorOrder();
QTreeModel *that = const_cast<QTreeModel*>(this);
that->sort(column, order);
return true;
}
return false;
}
class QTreeWidgetPrivate : public QTreeViewPrivate
{
friend class QTreeModel;
Q_DECLARE_PUBLIC(QTreeWidget)
public:
QTreeWidgetPrivate() : QTreeViewPrivate(), explicitSortColumn(-1) {}
inline QTreeModel *treeModel() const { return qobject_cast<QTreeModel*>(model); }
inline QModelIndex index(const QTreeWidgetItem *item, int column = 0) const
{ return treeModel()->index(item, column); }
inline QTreeWidgetItem *item(const QModelIndex &index) const
{ return treeModel()->item(index); }
void _q_emitItemPressed(const QModelIndex &index);
void _q_emitItemClicked(const QModelIndex &index);
void _q_emitItemDoubleClicked(const QModelIndex &index);
void _q_emitItemActivated(const QModelIndex &index);
void _q_emitItemEntered(const QModelIndex &index);
void _q_emitItemChanged(const QModelIndex &index);
void _q_emitItemExpanded(const QModelIndex &index);
void _q_emitItemCollapsed(const QModelIndex &index);
void _q_emitCurrentItemChanged(const QModelIndex &previous, const QModelIndex &index);
void _q_sort();
void _q_dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
void _q_selectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
// used by QTreeWidgetItem::sortChildren to make sure the column argument is used
int explicitSortColumn;
};
QT_END_NAMESPACE
#endif // QT_NO_TREEWIDGET
#endif // QTREEWIDGET_P_H
|
