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39 | |
40 | #ifndef QTREEWIDGETITEMITERATOR_H |
41 | #define QTREEWIDGETITEMITERATOR_H |
42 | |
43 | #include <QtWidgets/qtwidgetsglobal.h> |
44 | #include <QtCore/qscopedpointer.h> |
45 | |
46 | QT_REQUIRE_CONFIG(treewidget); |
47 | |
48 | QT_BEGIN_NAMESPACE |
49 | |
50 | class QTreeWidget; |
51 | class QTreeWidgetItem; |
52 | class QTreeModel; |
53 | |
54 | class QTreeWidgetItemIteratorPrivate; |
55 | class Q_WIDGETS_EXPORT QTreeWidgetItemIterator |
56 | { |
57 | friend class QTreeModel; |
58 | |
59 | public: |
60 | enum IteratorFlag { |
61 | All = 0x00000000, |
62 | Hidden = 0x00000001, |
63 | NotHidden = 0x00000002, |
64 | Selected = 0x00000004, |
65 | Unselected = 0x00000008, |
66 | Selectable = 0x00000010, |
67 | NotSelectable = 0x00000020, |
68 | DragEnabled = 0x00000040, |
69 | DragDisabled = 0x00000080, |
70 | DropEnabled = 0x00000100, |
71 | DropDisabled = 0x00000200, |
72 | HasChildren = 0x00000400, |
73 | NoChildren = 0x00000800, |
74 | Checked = 0x00001000, |
75 | NotChecked = 0x00002000, |
76 | Enabled = 0x00004000, |
77 | Disabled = 0x00008000, |
78 | Editable = 0x00010000, |
79 | NotEditable = 0x00020000, |
80 | UserFlag = 0x01000000 // The first flag that can be used by the user. |
81 | }; |
82 | Q_DECLARE_FLAGS(IteratorFlags, IteratorFlag) |
83 | |
84 | QTreeWidgetItemIterator(const QTreeWidgetItemIterator &it); |
85 | explicit QTreeWidgetItemIterator(QTreeWidget *widget, IteratorFlags flags = All); |
86 | explicit QTreeWidgetItemIterator(QTreeWidgetItem *item, IteratorFlags flags = All); |
87 | ~QTreeWidgetItemIterator(); |
88 | |
89 | QTreeWidgetItemIterator &operator=(const QTreeWidgetItemIterator &it); |
90 | |
91 | QTreeWidgetItemIterator &operator++(); |
92 | inline const QTreeWidgetItemIterator operator++(int); |
93 | inline QTreeWidgetItemIterator &operator+=(int n); |
94 | |
95 | QTreeWidgetItemIterator &operator--(); |
96 | inline const QTreeWidgetItemIterator operator--(int); |
97 | inline QTreeWidgetItemIterator &operator-=(int n); |
98 | |
99 | inline QTreeWidgetItem *operator*() const; |
100 | |
101 | private: |
102 | bool matchesFlags(const QTreeWidgetItem *item) const; |
103 | QScopedPointer<QTreeWidgetItemIteratorPrivate> d_ptr; |
104 | QTreeWidgetItem *current; |
105 | IteratorFlags flags; |
106 | Q_DECLARE_PRIVATE(QTreeWidgetItemIterator) |
107 | }; |
108 | |
109 | inline const QTreeWidgetItemIterator QTreeWidgetItemIterator::operator++(int) |
110 | { |
111 | QTreeWidgetItemIterator it = *this; |
112 | ++(*this); |
113 | return it; |
114 | } |
115 | |
116 | inline const QTreeWidgetItemIterator QTreeWidgetItemIterator::operator--(int) |
117 | { |
118 | QTreeWidgetItemIterator it = *this; |
119 | --(*this); |
120 | return it; |
121 | } |
122 | |
123 | inline QTreeWidgetItemIterator &QTreeWidgetItemIterator::operator+=(int n) |
124 | { |
125 | if (n < 0) |
126 | return (*this) -= (-n); |
127 | while (current && n--) |
128 | ++(*this); |
129 | return *this; |
130 | } |
131 | |
132 | inline QTreeWidgetItemIterator &QTreeWidgetItemIterator::operator-=(int n) |
133 | { |
134 | if (n < 0) |
135 | return (*this) += (-n); |
136 | while (current && n--) |
137 | --(*this); |
138 | return *this; |
139 | } |
140 | |
141 | inline QTreeWidgetItem *QTreeWidgetItemIterator::operator*() const |
142 | { |
143 | return current; |
144 | } |
145 | |
146 | Q_DECLARE_OPERATORS_FOR_FLAGS(QTreeWidgetItemIterator::IteratorFlags) |
147 | |
148 | QT_END_NAMESPACE |
149 | #endif // QTREEWIDGETITEMITERATOR_H |
150 | |