qtreewidgetitemiterator.h
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上传日期:2022-06-22
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- /****************************************************************************
- **
- ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
- ** This file is part of the QtGui module of the Qt Toolkit.
- **
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- ** accordance with the Qt Commercial License Agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and Nokia.
- **
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License versions 2.0 or 3.0 as published by the Free
- ** Software Foundation and appearing in the file LICENSE.GPL included in
- ** the packaging of this file. Please review the following information
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- #ifndef QTREEWIDGETITEMITERATOR_H
- #define QTREEWIDGETITEMITERATOR_H
- #include <QtCore/qglobal.h>
- QT_BEGIN_HEADER
- QT_BEGIN_NAMESPACE
- QT_MODULE(Gui)
- #ifndef QT_NO_TREEWIDGET
- class QTreeWidget;
- class QTreeWidgetItem;
- class QTreeModel;
- class QTreeWidgetItemIteratorPrivate;
- class Q_GUI_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;
- 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 // QT_NO_TREEWIDGET
- QT_END_HEADER
- #endif // QTREEWIDGETITEMITERATOR_H