lyx_mirror/src/frontends/qt4/TocModel.h
Georg Baum 1ad4d9e657 Forbid wrong compiler generated copy constructors
This fixes cppcheck warnings (style) 'class x' does not have a copy constructor
which is recommended since the class contains a pointer to allocated memory.
2015-09-20 19:43:06 +02:00

162 lines
3.3 KiB
C++

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