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| ** |
| ** Copyright (C) 2015 The Qt Company Ltd. |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtGui module of the Qt Toolkit. |
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| ** $QT_BEGIN_LICENSE:LGPL21$ |
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| ****************************************************************************/ |
| |
| #ifndef QSTANDARDITEMMODEL_P_H |
| #define QSTANDARDITEMMODEL_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists for the convenience |
| // of other Qt classes. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include "private/qabstractitemmodel_p.h" |
| |
| #ifndef QT_NO_STANDARDITEMMODEL |
| |
| #include <QtCore/qlist.h> |
| #include <QtCore/qpair.h> |
| #include <QtCore/qstack.h> |
| #include <QtCore/qvariant.h> |
| #include <QtCore/qvector.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QStandardItemData |
| { |
| public: |
| inline QStandardItemData() : role(-1) {} |
| inline QStandardItemData(int r, QVariant v) : role(r), value(v) {} |
| int role; |
| QVariant value; |
| inline bool operator==(const QStandardItemData &other) const { return role == other.role && value == other.value; } |
| }; |
| |
| #ifndef QT_NO_DATASTREAM |
| |
| inline QDataStream &operator>>(QDataStream &in, QStandardItemData &data) |
| { |
| in >> data.role; |
| in >> data.value; |
| return in; |
| } |
| |
| inline QDataStream &operator<<(QDataStream &out, const QStandardItemData &data) |
| { |
| out << data.role; |
| out << data.value; |
| return out; |
| } |
| |
| #endif // QT_NO_DATASTREAM |
| |
| class QStandardItemPrivate |
| { |
| Q_DECLARE_PUBLIC(QStandardItem) |
| public: |
| inline QStandardItemPrivate() |
| : model(0), |
| parent(0), |
| rows(0), |
| columns(0), |
| q_ptr(0), |
| lastIndexOf(2) |
| { } |
| virtual ~QStandardItemPrivate(); |
| |
| inline int childIndex(int row, int column) const { |
| if ((row < 0) || (column < 0) |
| || (row >= rowCount()) || (column >= columnCount())) { |
| return -1; |
| } |
| return (row * columnCount()) + column; |
| } |
| inline int childIndex(const QStandardItem *child) { |
| int start = qMax(0, lastIndexOf -2); |
| lastIndexOf = children.indexOf(const_cast<QStandardItem*>(child), start); |
| if (lastIndexOf == -1 && start != 0) |
| lastIndexOf = children.lastIndexOf(const_cast<QStandardItem*>(child), start); |
| return lastIndexOf; |
| } |
| QPair<int, int> position() const; |
| void setChild(int row, int column, QStandardItem *item, |
| bool emitChanged = false); |
| inline int rowCount() const { |
| return rows; |
| } |
| inline int columnCount() const { |
| return columns; |
| } |
| void childDeleted(QStandardItem *child); |
| |
| void setModel(QStandardItemModel *mod); |
| |
| inline void setParentAndModel( |
| QStandardItem *par, |
| QStandardItemModel *mod) { |
| setModel(mod); |
| parent = par; |
| } |
| |
| void changeFlags(bool enable, Qt::ItemFlags f); |
| void setItemData(const QMap<int, QVariant> &roles); |
| const QMap<int, QVariant> itemData() const; |
| |
| bool insertRows(int row, int count, const QList<QStandardItem*> &items); |
| bool insertRows(int row, const QList<QStandardItem*> &items); |
| bool insertColumns(int column, int count, const QList<QStandardItem*> &items); |
| |
| void sortChildren(int column, Qt::SortOrder order); |
| |
| QStandardItemModel *model; |
| QStandardItem *parent; |
| QVector<QStandardItemData> values; |
| QVector<QStandardItem*> children; |
| int rows; |
| int columns; |
| |
| QStandardItem *q_ptr; |
| |
| int lastIndexOf; |
| }; |
| |
| class QStandardItemModelPrivate : public QAbstractItemModelPrivate |
| { |
| Q_DECLARE_PUBLIC(QStandardItemModel) |
| |
| public: |
| QStandardItemModelPrivate(); |
| virtual ~QStandardItemModelPrivate(); |
| |
| void init(); |
| |
| inline QStandardItem *createItem() const { |
| return itemPrototype ? itemPrototype->clone() : new QStandardItem; |
| } |
| |
| inline QStandardItem *itemFromIndex(const QModelIndex &index) const { |
| Q_Q(const QStandardItemModel); |
| if (!index.isValid()) |
| return root.data(); |
| if (index.model() != q) |
| return 0; |
| QStandardItem *parent = static_cast<QStandardItem*>(index.internalPointer()); |
| if (parent == 0) |
| return 0; |
| return parent->child(index.row(), index.column()); |
| } |
| |
| void sort(QStandardItem *parent, int column, Qt::SortOrder order); |
| void itemChanged(QStandardItem *item); |
| void rowsAboutToBeInserted(QStandardItem *parent, int start, int end); |
| void columnsAboutToBeInserted(QStandardItem *parent, int start, int end); |
| void rowsAboutToBeRemoved(QStandardItem *parent, int start, int end); |
| void columnsAboutToBeRemoved(QStandardItem *parent, int start, int end); |
| void rowsInserted(QStandardItem *parent, int row, int count); |
| void columnsInserted(QStandardItem *parent, int column, int count); |
| void rowsRemoved(QStandardItem *parent, int row, int count); |
| void columnsRemoved(QStandardItem *parent, int column, int count); |
| |
| void _q_emitItemChanged(const QModelIndex &topLeft, |
| const QModelIndex &bottomRight); |
| |
| void decodeDataRecursive(QDataStream &stream, QStandardItem *item); |
| |
| QVector<QStandardItem*> columnHeaderItems; |
| QVector<QStandardItem*> rowHeaderItems; |
| QScopedPointer<QStandardItem> root; |
| const QStandardItem *itemPrototype; |
| int sortRole; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QT_NO_STANDARDITEMMODEL |
| |
| #endif // QSTANDARDITEMMODEL_P_H |