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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QTREEWIDGETITEMITERATOR_H
#define QTREEWIDGETITEMITERATOR_H
#include <QtWidgets/qtwidgetsglobal.h>
#include <QtCore/qscopedpointer.h>
QT_REQUIRE_CONFIG(treewidget);
QT_BEGIN_NAMESPACE
class QTreeWidget;
class QTreeWidgetItem;
class QTreeModel;
class QTreeWidgetItemIteratorPrivate;
class Q_WIDGETS_EXPORT QTreeWidgetItemIterator
{
friend class QTreeModel;
public:
enum IteratorFlag {
All = 0x00000000,
Hidden = 0x00000001,
NotHidden = 0x00000002,
Selected = 0x00000004,
Unselected = 0x00000008,
Selectable = 0x00000010,
NotSelectable = 0x00000020,
DragEnabled = 0x00000040,
DragDisabled = 0x00000080,
DropEnabled = 0x00000100,
DropDisabled = 0x00000200,
HasChildren = 0x00000400,
NoChildren = 0x00000800,
Checked = 0x00001000,
NotChecked = 0x00002000,
Enabled = 0x00004000,
Disabled = 0x00008000,
Editable = 0x00010000,
NotEditable = 0x00020000,
UserFlag = 0x01000000 // The first flag that can be used by the user.
};
Q_DECLARE_FLAGS(IteratorFlags, IteratorFlag)
QTreeWidgetItemIterator(const QTreeWidgetItemIterator &it);
explicit QTreeWidgetItemIterator(QTreeWidget *widget, IteratorFlags flags = All);
explicit QTreeWidgetItemIterator(QTreeWidgetItem *item, IteratorFlags flags = All);
~QTreeWidgetItemIterator();
QTreeWidgetItemIterator &operator=(const QTreeWidgetItemIterator &it);
QTreeWidgetItemIterator &operator++();
inline const QTreeWidgetItemIterator operator++(int);
inline QTreeWidgetItemIterator &operator+=(int n);
QTreeWidgetItemIterator &operator--();
inline const QTreeWidgetItemIterator operator--(int);
inline QTreeWidgetItemIterator &operator-=(int n);
inline QTreeWidgetItem *operator*() const;
private:
bool matchesFlags(const QTreeWidgetItem *item) const;
QScopedPointer<QTreeWidgetItemIteratorPrivate> d_ptr;
QTreeWidgetItem *current;
IteratorFlags flags;
Q_DECLARE_PRIVATE(QTreeWidgetItemIterator)
};
inline const QTreeWidgetItemIterator QTreeWidgetItemIterator::operator++(int)
{
QTreeWidgetItemIterator it = *this;
++(*this);
return it;
}
inline const QTreeWidgetItemIterator QTreeWidgetItemIterator::operator--(int)
{
QTreeWidgetItemIterator it = *this;
--(*this);
return it;
}
inline QTreeWidgetItemIterator &QTreeWidgetItemIterator::operator+=(int n)
{
if (n < 0)
return (*this) -= (-n);
while (current && n--)
++(*this);
return *this;
}
inline QTreeWidgetItemIterator &QTreeWidgetItemIterator::operator-=(int n)
{
if (n < 0)
return (*this) += (-n);
while (current && n--)
--(*this);
return *this;
}
inline QTreeWidgetItem *QTreeWidgetItemIterator::operator*() const
{
return current;
}
Q_DECLARE_OPERATORS_FOR_FLAGS(QTreeWidgetItemIterator::IteratorFlags)
QT_END_NAMESPACE
#endif // QTREEWIDGETITEMITERATOR_H
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