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84 lines
2.3 KiB
84 lines
2.3 KiB
/* |
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Copyright (c) 2009 Stephen Kelly <steveire@gmail.com> |
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This library is free software; you can redistribute it and/or modify it |
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under the terms of the GNU Library General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or (at your |
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option) any later version. |
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This library is distributed in the hope that it will be useful, but WITHOUT |
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public |
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License for more details. |
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You should have received a copy of the GNU Library General Public License |
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along with this library; see the file COPYING.LIB. If not, write to the |
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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02110-1301, USA. |
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*/ |
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#ifndef INDEXFINDER_H |
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#define INDEXFINDER_H |
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#include <QModelIndex> |
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class IndexFinder |
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{ |
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public: |
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IndexFinder(QList<int> rows = QList<int>()) : m_rows(rows), m_model(0) {} |
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IndexFinder(const QAbstractItemModel *model, QList<int> rows = QList<int>() ) |
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: m_rows(rows), m_model(model) |
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{ |
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Q_ASSERT(model); |
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} |
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QModelIndex getIndex() const |
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{ |
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if(!m_model) |
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return QModelIndex(); |
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static const int col = 0; |
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QModelIndex parent = QModelIndex(); |
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QListIterator<int> i(m_rows); |
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while (i.hasNext()) |
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{ |
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parent = m_model->index(i.next(), col, parent); |
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Q_ASSERT(parent.isValid()); |
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} |
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return parent; |
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} |
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static IndexFinder indexToIndexFinder(const QModelIndex &_idx) |
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{ |
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if (!_idx.isValid()) |
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return IndexFinder(); |
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QList<int> list; |
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QModelIndex idx = _idx; |
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while (idx.isValid()) |
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{ |
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list.prepend(idx.row()); |
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idx = idx.parent(); |
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} |
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return IndexFinder(_idx.model(), list); |
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} |
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bool operator==( const IndexFinder &other ) const |
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{ |
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return (m_rows == other.m_rows && m_model == other.m_model ); |
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} |
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QList<int> rows() const { return m_rows; } |
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void appendRow(int row) { m_rows.append(row); } |
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void setRows( const QList<int> &rows ) { m_rows = rows; } |
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void setModel(QAbstractItemModel *model) { m_model = model; } |
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private: |
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QList<int> m_rows; |
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const QAbstractItemModel * m_model; |
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}; |
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Q_DECLARE_METATYPE( IndexFinder ) |
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#endif
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