mirror of
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157 lines
3.1 KiB
C++
157 lines
3.1 KiB
C++
// -*- C++ -*-
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/**
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* \file TocModel.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Abdelrazak Younes
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef TOCMODEL_H
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#define TOCMODEL_H
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#include <QHash>
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#include <QSortFilterProxyModel>
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namespace lyx {
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class Buffer;
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class BufferView;
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class DocIterator;
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class Toc;
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class TocItem;
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namespace frontend {
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class TocTypeModel;
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/// A class that adapt the TocBackend of a Buffer into standard Qt models for
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/// GUI visualisation.
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/// There is one TocModel per list in the TocBackend.
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class TocModel
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{
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public:
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///
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TocModel(QObject * parent);
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///
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void reset(Toc const & toc);
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///
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void reset();
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///
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void updateItem(DocIterator const & dit);
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///
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void clear();
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///
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QAbstractItemModel * model();
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///
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QAbstractItemModel const * model() const;
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///
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void sort(bool sort_it);
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///
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bool isSorted() const { return is_sorted_; }
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///
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TocItem const & tocItem(QModelIndex const & index) const;
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///
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QModelIndex modelIndex(DocIterator const & dit) const;
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///
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int modelDepth() const;
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private:
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///
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void populate(unsigned int & index, QModelIndex const & parent);
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///
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TocTypeModel * model_;
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///
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QSortFilterProxyModel * sorted_model_;
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///
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bool is_sorted_;
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///
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Toc const * toc_;
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///
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int maxdepth_;
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///
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int mindepth_;
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};
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/// A filter to sort the models alphabetically but with
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/// the table of contents on top.
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class TocModelSortProxyModel : public QSortFilterProxyModel
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{
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public:
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TocModelSortProxyModel(QObject * w)
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: QSortFilterProxyModel(w)
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{}
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bool lessThan (const QModelIndex & left, const QModelIndex & right) const
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{
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if (left.model()->data(left, Qt::UserRole).toString()
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== QString("tableofcontents"))
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return true;
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else if (right.model()->data(right, Qt::UserRole).toString()
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== QString("tableofcontents"))
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return false;
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else
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return QSortFilterProxyModel::lessThan(left, right);
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}
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};
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/// A container for the different TocModels.
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class TocModels : public QObject
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{
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Q_OBJECT
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public:
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///
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TocModels();
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///
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void reset(BufferView const * bv);
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///
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int depth(QString const & type);
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///
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QAbstractItemModel * model(QString const & type);
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///
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QAbstractItemModel * nameModel();
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///
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QModelIndex currentIndex(QString const & type) const;
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///
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void goTo(QString const & type, QModelIndex const & index) const;
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///
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void init(Buffer const & buffer);
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///
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void updateItem(QString const & type, DocIterator const & dit);
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///
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void sort(QString const & type, bool sort_it);
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///
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bool isSorted(QString const & type) const;
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/// the item that is currently selected
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TocItem const currentItem(QString const & type,
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QModelIndex const & index) const;
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Q_SIGNALS:
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/// Signal that the internal toc_models_ has been reset.
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void modelReset();
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private:
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typedef QHash<QString, TocModel *>::const_iterator const_iterator;
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typedef QHash<QString, TocModel *>::iterator iterator;
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///
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void clear();
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///
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BufferView const * bv_;
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///
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QHash<QString, TocModel *> models_;
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///
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TocTypeModel * names_;
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///
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TocModelSortProxyModel * names_sorted_;
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};
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} // namespace frontend
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} // namespace lyx
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#endif // TOCMODEL_H
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