150 lines
4.9 KiB
C++
150 lines
4.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtWidgets module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QTREEWIDGETITEMITERATOR_H
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#define QTREEWIDGETITEMITERATOR_H
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#include <QtWidgets/qtwidgetsglobal.h>
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#include <QtCore/qscopedpointer.h>
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QT_REQUIRE_CONFIG(treewidget);
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QT_BEGIN_NAMESPACE
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class QTreeWidget;
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class QTreeWidgetItem;
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class QTreeModel;
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class QTreeWidgetItemIteratorPrivate;
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class Q_WIDGETS_EXPORT QTreeWidgetItemIterator
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{
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friend class QTreeModel;
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public:
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enum IteratorFlag {
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All = 0x00000000,
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Hidden = 0x00000001,
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NotHidden = 0x00000002,
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Selected = 0x00000004,
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Unselected = 0x00000008,
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Selectable = 0x00000010,
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NotSelectable = 0x00000020,
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DragEnabled = 0x00000040,
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DragDisabled = 0x00000080,
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DropEnabled = 0x00000100,
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DropDisabled = 0x00000200,
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HasChildren = 0x00000400,
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NoChildren = 0x00000800,
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Checked = 0x00001000,
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NotChecked = 0x00002000,
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Enabled = 0x00004000,
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Disabled = 0x00008000,
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Editable = 0x00010000,
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NotEditable = 0x00020000,
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UserFlag = 0x01000000 // The first flag that can be used by the user.
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};
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Q_DECLARE_FLAGS(IteratorFlags, IteratorFlag)
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QTreeWidgetItemIterator(const QTreeWidgetItemIterator &it);
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explicit QTreeWidgetItemIterator(QTreeWidget *widget, IteratorFlags flags = All);
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explicit QTreeWidgetItemIterator(QTreeWidgetItem *item, IteratorFlags flags = All);
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~QTreeWidgetItemIterator();
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QTreeWidgetItemIterator &operator=(const QTreeWidgetItemIterator &it);
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QTreeWidgetItemIterator &operator++();
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inline const QTreeWidgetItemIterator operator++(int);
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inline QTreeWidgetItemIterator &operator+=(int n);
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QTreeWidgetItemIterator &operator--();
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inline const QTreeWidgetItemIterator operator--(int);
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inline QTreeWidgetItemIterator &operator-=(int n);
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inline QTreeWidgetItem *operator*() const;
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private:
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bool matchesFlags(const QTreeWidgetItem *item) const;
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QScopedPointer<QTreeWidgetItemIteratorPrivate> d_ptr;
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QTreeWidgetItem *current;
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IteratorFlags flags;
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Q_DECLARE_PRIVATE(QTreeWidgetItemIterator)
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};
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inline const QTreeWidgetItemIterator QTreeWidgetItemIterator::operator++(int)
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{
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QTreeWidgetItemIterator it = *this;
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++(*this);
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return it;
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}
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inline const QTreeWidgetItemIterator QTreeWidgetItemIterator::operator--(int)
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{
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QTreeWidgetItemIterator it = *this;
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--(*this);
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return it;
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}
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inline QTreeWidgetItemIterator &QTreeWidgetItemIterator::operator+=(int n)
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{
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if (n < 0)
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return (*this) -= (-n);
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while (current && n--)
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++(*this);
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return *this;
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}
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inline QTreeWidgetItemIterator &QTreeWidgetItemIterator::operator-=(int n)
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{
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if (n < 0)
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return (*this) += (-n);
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while (current && n--)
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--(*this);
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return *this;
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}
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inline QTreeWidgetItem *QTreeWidgetItemIterator::operator*() const
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{
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return current;
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}
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Q_DECLARE_OPERATORS_FOR_FLAGS(QTreeWidgetItemIterator::IteratorFlags)
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QT_END_NAMESPACE
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#endif // QTREEWIDGETITEMITERATOR_H
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