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41
42#ifndef QSTANDARDITEMMODEL_P_H
43#define QSTANDARDITEMMODEL_P_H
44
45//
46// W A R N I N G
47// -------------
48//
49// This file is not part of the Qt API. It exists for the convenience
50// of other Qt classes. This header file may change from version to
51// version without notice, or even be removed.
52//
53// We mean it.
54//
55
56#include "private/qabstractitemmodel_p.h"
57
58#ifndef QT_NO_STANDARDITEMMODEL
59
60#include <private/qwidgetitemdata_p.h>
61#include <QtCore/qlist.h>
62#include <QtCore/qpair.h>
63#include <QtCore/qstack.h>
64#include <QtCore/qvariant.h>
65#include <QtCore/qvector.h>
66
67QT_BEGIN_NAMESPACE
68
69class QStandardItemPrivate
70{
71 Q_DECLARE_PUBLIC(QStandardItem)
72public:
73 inline QStandardItemPrivate()
74 : model(0),
75 parent(0),
76 rows(0),
77 columns(0),
78 q_ptr(0),
79 lastIndexOf(2)
80 { }
81 virtual ~QStandardItemPrivate();
82
83 inline int childIndex(int row, int column) const {
84 if ((row < 0) || (column < 0)
85 || (row >= rowCount()) || (column >= columnCount())) {
86 return -1;
87 }
88 return (row * columnCount()) + column;
89 }
90 inline int childIndex(const QStandardItem *child) {
91 int start = qMax(0, lastIndexOf -2);
92 lastIndexOf = children.indexOf(const_cast<QStandardItem*>(child), start);
93 if (lastIndexOf == -1 && start != 0)
94 lastIndexOf = children.lastIndexOf(const_cast<QStandardItem*>(child), start);
95 return lastIndexOf;
96 }
97 QPair<int, int> position() const;
98 void setChild(int row, int column, QStandardItem *item,
99 bool emitChanged = false);
100 inline int rowCount() const {
101 return rows;
102 }
103 inline int columnCount() const {
104 return columns;
105 }
106 void childDeleted(QStandardItem *child);
107
108 void setModel(QStandardItemModel *mod);
109
110 inline void setParentAndModel(
111 QStandardItem *par,
112 QStandardItemModel *mod) {
113 setModel(mod);
114 parent = par;
115 }
116
117 void changeFlags(bool enable, Qt::ItemFlags f);
118 void setItemData(const QMap<int, QVariant> &roles);
119 const QMap<int, QVariant> itemData() const;
120
121 bool insertRows(int row, int count, const QList<QStandardItem*> &items);
122 bool insertRows(int row, const QList<QStandardItem*> &items);
123 bool insertColumns(int column, int count, const QList<QStandardItem*> &items);
124
125 void sortChildren(int column, Qt::SortOrder order);
126
127 QStandardItemModel *model;
128 QStandardItem *parent;
129 QVector<QWidgetItemData> values;
130 QVector<QStandardItem*> children;
131 int rows;
132 int columns;
133
134 QStandardItem *q_ptr;
135
136 int lastIndexOf;
137};
138
139class QStandardItemModelPrivate : public QAbstractItemModelPrivate
140{
141 Q_DECLARE_PUBLIC(QStandardItemModel)
142
143public:
144 QStandardItemModelPrivate();
145 virtual ~QStandardItemModelPrivate();
146
147 void init();
148
149 inline QStandardItem *createItem() const {
150 return itemPrototype ? itemPrototype->clone() : new QStandardItem;
151 }
152
153 inline QStandardItem *itemFromIndex(const QModelIndex &index) const {
154 Q_Q(const QStandardItemModel);
155 if (!index.isValid())
156 return root.data();
157 if (index.model() != q)
158 return 0;
159 QStandardItem *parent = static_cast<QStandardItem*>(index.internalPointer());
160 if (parent == 0)
161 return 0;
162 return parent->child(index.row(), index.column());
163 }
164
165 void sort(QStandardItem *parent, int column, Qt::SortOrder order);
166 void itemChanged(QStandardItem *item);
167 void rowsAboutToBeInserted(QStandardItem *parent, int start, int end);
168 void columnsAboutToBeInserted(QStandardItem *parent, int start, int end);
169 void rowsAboutToBeRemoved(QStandardItem *parent, int start, int end);
170 void columnsAboutToBeRemoved(QStandardItem *parent, int start, int end);
171 void rowsInserted(QStandardItem *parent, int row, int count);
172 void columnsInserted(QStandardItem *parent, int column, int count);
173 void rowsRemoved(QStandardItem *parent, int row, int count);
174 void columnsRemoved(QStandardItem *parent, int column, int count);
175
176 void _q_emitItemChanged(const QModelIndex &topLeft,
177 const QModelIndex &bottomRight);
178
179 void decodeDataRecursive(QDataStream &stream, QStandardItem *item);
180
181 QVector<QStandardItem*> columnHeaderItems;
182 QVector<QStandardItem*> rowHeaderItems;
183 QScopedPointer<QStandardItem> root;
184 const QStandardItem *itemPrototype;
185 int sortRole;
186};
187
188QT_END_NAMESPACE
189
190#endif // QT_NO_STANDARDITEMMODEL
191
192#endif // QSTANDARDITEMMODEL_P_H
193