Add missing initialization

[lyx.git] / src / frontends / qt4 / TocModel.h

diff --git a/src/frontends/qt4/TocModel.h b/src/frontends/qt4/TocModel.h
index 07b8372a9a6f012d0cece498f758d324707cdec3..0c3c6b09dde61d52851f15e99c9a4319b892a575 100644 (file)
--- a/src/frontends/qt4/TocModel.h
+++ b/src/frontends/qt4/TocModel.h
@@ -12,30 +12,49 @@
 #ifndef TOCMODEL_H
 #define TOCMODEL_H
 
-#include "qt_helpers.h"
+#include "Toc.h"
 
-#include <QList>
-#include <QStandardItemModel>
-#include <QStringList>
+#include <QHash>
+#include <QSortFilterProxyModel>
 
 namespace lyx {
 
 class Buffer;
 class BufferView;
 class DocIterator;
-class Toc;
-class TocItem;
 
 namespace frontend {
 
-class TocModel : public QStandardItemModel
+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(Toc const & toc);
+       TocModel(QObject * parent);
+       ///
+       void reset(std::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;
@@ -44,61 +63,91 @@ public:
 
 private:
        ///
-       void populate(size_t & index, QModelIndex const & parent);
+       void populate(unsigned int & index, QModelIndex const & parent);
+       ///
+       void setString(TocItem const & item, QModelIndex index);
        ///
-       QList<QModelIndex> toc_indexes_;
+       TocTypeModel * model_;
        ///
-       Toc const & toc_;
+       QSortFilterProxyModel * sorted_model_;
+       ///
+       bool is_sorted_;
+       ///
+       std::shared_ptr<Toc const> toc_;
        ///
        int maxdepth_;
+       ///
        int mindepth_;
 };
 
 
-class TocModels: public QObject
+/// 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(): bv_(0) {}
-       ///
-       ~TocModels() { clear(); }
+       TocModels();
        ///
        void reset(BufferView const * bv);
        ///
-       int depth(int type);
+       int depth(QString const & type);
+       ///
+       QAbstractItemModel * model(QString const & type);
        ///
-       QStandardItemModel * model(int type);
+       QAbstractItemModel * nameModel();
        ///
-       QModelIndex currentIndex(int type) const;
+       QModelIndex currentIndex(QString const & type,
+                                DocIterator const & dit) const;
        ///
-       void goTo(int type, QModelIndex const & index) const;
+       void goTo(QString const & type, QModelIndex const & index) const;
        ///
        void init(Buffer const & buffer);
-       /// Test if outlining operation is possible
-       bool canOutline(int type) const;
-       /// Return the list of types available
-       QStringList const & typeNames() const { return type_names_; }
        ///
-       void updateBackend() const;
+       void updateItem(QString const & type, DocIterator const & dit);
        ///
-       int decodeType(QString const & str) const;
-
-Q_SIGNALS:
-       /// Signal that the internal toc_models_ has been reset.
-       void modelReset();
+       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();
        ///
-       BufferView const * bv_;
-       ///
-       QList<TocModel *> models_;
+       QHash<QString, TocModel *> models_;
        ///
-       QStringList types_;
+       TocTypeModel * names_;
        ///
-       QStringList type_names_;
+       TocModelSortProxyModel * names_sorted_;
 };
 
 } // namespace frontend