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    41 

    42 #ifndef QTREEWIDGETITEMITERATOR_H

    43 #define QTREEWIDGETITEMITERATOR_H

    44 

    45 #include <QtCore/qglobal.h>

    46 #include <QtCore/qscopedpointer.h>

    47 

    48 QT_BEGIN_HEADER

    49 

    50 QT_BEGIN_NAMESPACE

    51 

    52 QT_MODULE(Gui)

    53 

    54 #ifndef QT_NO_TREEWIDGET

    55 

    56 class QTreeWidget;

    57 class QTreeWidgetItem;

    58 class QTreeModel;

    59 

    60 class QTreeWidgetItemIteratorPrivate;

    61 class Q_GUI_EXPORT QTreeWidgetItemIterator

    62 {

    63     friend class QTreeModel;

    64 

    65 public:

    66     enum IteratorFlag {

    67         All           = 0x00000000,

    68         Hidden        = 0x00000001,

    69         NotHidden     = 0x00000002,

    70         Selected      = 0x00000004,

    71         Unselected    = 0x00000008,

    72         Selectable    = 0x00000010,

    73         NotSelectable = 0x00000020,

    74         DragEnabled   = 0x00000040,

    75         DragDisabled  = 0x00000080,

    76         DropEnabled   = 0x00000100,

    77         DropDisabled  = 0x00000200,

    78         HasChildren   = 0x00000400,

    79         NoChildren    = 0x00000800,

    80         Checked       = 0x00001000,

    81         NotChecked    = 0x00002000,

    82         Enabled       = 0x00004000,

    83         Disabled      = 0x00008000,

    84         Editable      = 0x00010000,

    85         NotEditable   = 0x00020000,

    86         UserFlag      = 0x01000000 // The first flag that can be used by the user.

    87     };

    88     Q_DECLARE_FLAGS(IteratorFlags, IteratorFlag)

    89 

    90     QTreeWidgetItemIterator(const QTreeWidgetItemIterator &it);

    91     explicit QTreeWidgetItemIterator(QTreeWidget *widget, IteratorFlags flags = All);

    92     explicit QTreeWidgetItemIterator(QTreeWidgetItem *item, IteratorFlags flags = All);

    93     ~QTreeWidgetItemIterator();

    94 

    95     QTreeWidgetItemIterator &operator=(const QTreeWidgetItemIterator &it);

    96 

    97     QTreeWidgetItemIterator &operator++();

    98     inline const QTreeWidgetItemIterator operator++(int);

    99     inline QTreeWidgetItemIterator &operator+=(int n);

   100 

   101     QTreeWidgetItemIterator &operator--();

   102     inline const QTreeWidgetItemIterator operator--(int);

   103     inline QTreeWidgetItemIterator &operator-=(int n);

   104 

   105     inline QTreeWidgetItem *operator*() const;

   106 

   107 private:

   108     bool matchesFlags(const QTreeWidgetItem *item) const;

   109     QScopedPointer<QTreeWidgetItemIteratorPrivate> d_ptr;

   110     QTreeWidgetItem *current;

   111     IteratorFlags flags;

   112     Q_DECLARE_PRIVATE(QTreeWidgetItemIterator)

   113 };

   114 

   115 inline const QTreeWidgetItemIterator QTreeWidgetItemIterator::operator++(int)

   116 {

   117     QTreeWidgetItemIterator it = *this;

   118     ++(*this);

   119     return it;

   120 }

   121 

   122 inline const QTreeWidgetItemIterator QTreeWidgetItemIterator::operator--(int)

   123 {

   124     QTreeWidgetItemIterator it = *this;

   125     --(*this);

   126     return it;

   127 }

   128 

   129 inline QTreeWidgetItemIterator &QTreeWidgetItemIterator::operator+=(int n)

   130 {

   131     if (n < 0)

   132         return (*this) -= (-n);

   133     while (current && n--)

   134         ++(*this);

   135     return *this;

   136 }

   137 

   138 inline QTreeWidgetItemIterator &QTreeWidgetItemIterator::operator-=(int n)

   139 {

   140     if (n < 0)

   141         return (*this) += (-n);

   142     while (current && n--)

   143         --(*this);

   144     return *this;

   145 }

   146 

   147 inline QTreeWidgetItem *QTreeWidgetItemIterator::operator*() const

   148 {

   149     return current;

   150 }

   151 

   152 Q_DECLARE_OPERATORS_FOR_FLAGS(QTreeWidgetItemIterator::IteratorFlags)

   153 

   154 

   155 QT_END_NAMESPACE

   156 #endif // QT_NO_TREEWIDGET

   157 QT_END_HEADER

   158 

   159 #endif // QTREEWIDGETITEMITERATOR_H