ModelIndexIterator Class Reference

Public Functions
QModelIndex	current () const
bool	isHidden () const
	ModelIndexIterator (QAbstractItemView *view, const QModelIndex &start=QModelIndex())
bool	next (int count=1)

Properties
QListView *	list
QModelIndex	m_current
QAbstractItemView *	m_view
QTableView *	table
QTreeView *	tree

Detailed Description

Definition at line 710 of file complexwidgets.cpp.

Constructors and Destructors

ModelIndexIterator()

ModelIndexIterator::ModelIndexIterator ( QAbstractItemView *  view, const QModelIndex &  start = QModelIndex()  )

inline

Definition at line 713 of file complexwidgets.cpp.

                                                                                          : m_view(view)
    {
#ifndef QT_NO_LISTVIEW
        list = qobject_cast<QListView*>(m_view);
#endif
#ifndef QT_NO_TREEVIEW
        tree = qobject_cast<QTreeView*>(m_view);
#endif
#ifndef QT_NO_TABLEVIEW
        table = qobject_cast<QTableView*>(m_view);
#endif
        if (start.isValid()) {
            m_current = start;
        } else if (m_view && m_view->model()) {
            m_current = view->rootIndex().isValid() ? 
                        view->rootIndex().child(0,0) : view->model()->index(0, 0);
        }
    }

Functions

current()

QModelIndex ModelIndexIterator::current ( ) const

inline

Definition at line 787 of file complexwidgets.cpp.

Referenced by QAccessibleItemView::childIndex().

                                {
        return m_current;
    }

isHidden()

bool ModelIndexIterator::isHidden ( ) const

inline

Definition at line 769 of file complexwidgets.cpp.

                          {
        if (false) {
#ifndef QT_NO_LISTVIEW
        } else if (list) {
            return list->isRowHidden(m_current.row());
#endif
#ifndef QT_NO_TREEVIEW
        } else if (tree) {
            return tree->isRowHidden(m_current.row(), m_current.parent());
#endif
#ifndef QT_NO_TABLEVIEW
        } else if (table) {
            return table->isRowHidden(m_current.row());
#endif
        }
        return false;
    }

next()

bool ModelIndexIterator::next ( int  count = 1 )

inline

Definition at line 732 of file complexwidgets.cpp.

Referenced by QAccessibleItemView::childCount(), and QAccessibleItemView::childIndex().

                             {
        for (int i = 0; i < count; ++i) {
            do {
                if (m_current.isValid()) {
                    const QAbstractItemModel *m = m_current.model();
#ifndef QT_NO_TREEVIEW
                    if (tree && m_current.model()->hasChildren(m_current) && tree->isExpanded(m_current)) {
                        m_current = m_current.child(0, 0);
                    } else
#endif
                    {
                        int row = m_current.row();
                        QModelIndex par = m_current.parent();
                        
                        // Go up to the parent if we reach the end of the rows
                        // If m_curent becomses invalid, stop going up.
                        while (row + 1 >= m->rowCount(par)) {
                            m_current = par;
                            if (m_current.isValid()) {
                                row = m_current.row();
                                par = m_current.parent();
                            } else {
                                row = 0;
                                par = QModelIndex();
                                break;
                            }
                        }

                        if (m_current.isValid())
                            m_current = m_current.sibling(row + 1, 0);
                    }
                }
            } while (isHidden());
        }
        return m_current.isValid();
    }

Properties

list

QListView* ModelIndexIterator::list

private

Definition at line 799 of file complexwidgets.cpp.

m_current

QModelIndex ModelIndexIterator::m_current

private

Definition at line 792 of file complexwidgets.cpp.

m_view

QAbstractItemView* ModelIndexIterator::m_view

private

Definition at line 793 of file complexwidgets.cpp.

table

QTableView* ModelIndexIterator::table

private

Definition at line 802 of file complexwidgets.cpp.

tree

QTreeView* ModelIndexIterator::tree

private

Definition at line 796 of file complexwidgets.cpp.

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The documentation for this class was generated from the following file:

• /src/plugins/accessible/widgets/complexwidgets.cpp