#ifndef TOCMODEL_H
#define TOCMODEL_H
-#include "TocBackend.h"
+#include "Toc.h"
-#include "qt_helpers.h"
+#include <QHash>
+#include <QSortFilterProxyModel>
-#include <QStandardItemModel>
+namespace lyx {
-#include <map>
+class Buffer;
+class BufferView;
+class DocIterator;
-namespace lyx {
namespace frontend {
-class TocModel: public QStandardItemModel {
- Q_OBJECT
+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() {}
+ TocModel(QObject * parent);
///
- TocModel(Toc const & toc);
+ void reset(std::shared_ptr<Toc const>);
///
- ~TocModel() {}
+ void reset();
///
- TocModel const & operator=(Toc const & toc);
+ void updateItem(DocIterator const & dit);
///
void clear();
///
- void populate(Toc const & toc);
+ QAbstractItemModel * model();
+ ///
+ QAbstractItemModel const * model() const;
+ ///
+ void sort(bool sort_it);
///
- TocIterator const tocIterator(QModelIndex const & index) const;
+ bool isSorted() const { return is_sorted_; }
///
- QModelIndex const modelIndex(TocIterator const & it) const;
+ TocItem const & tocItem(QModelIndex const & index) const;
///
- int modelDepth();
+ QModelIndex modelIndex(DocIterator const & dit) const;
+ ///
+ int modelDepth() const;
private:
///
- void populate(TocIterator & it,
- TocIterator const & end,
- QModelIndex const & parent);
+ void populate(unsigned int & index, QModelIndex const & parent);
///
- typedef std::map<QModelIndex, TocIterator> TocMap;
+ void setString(TocItem const & item, QModelIndex index);
///
- typedef std::pair<QModelIndex, TocIterator> TocPair;
+ TocTypeModel * model_;
///
- typedef std::map<TocIterator, QModelIndex> ModelMap;
+ QSortFilterProxyModel * sorted_model_;
///
- TocMap toc_map_;
+ bool is_sorted_;
///
- ModelMap model_map_;
+ std::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,
+ DocIterator const & dit) 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;
+
+private:
+ typedef QHash<QString, TocModel *>::const_iterator const_iterator;
+ typedef QHash<QString, TocModel *>::iterator iterator;
+ ///
+ void clear();
+ ///
+ QHash<QString, TocModel *> models_;
+ ///
+ TocTypeModel * names_;
+ ///
+ TocModelSortProxyModel * names_sorted_;
+};
+
} // namespace frontend
} // namespace lyx