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 bafc204fc320f22532118450000ff71206a68bce..0c3c6b09dde61d52851f15e99c9a4319b892a575 100644 (file)
--- a/src/frontends/qt4/TocModel.h
+++ b/src/frontends/qt4/TocModel.h
@@ -12,41 +12,48 @@
 #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 TocTypeModel : 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:
        ///
-       TocTypeModel(QObject * parent = 0);
+       TocModel(QObject * parent);
+       ///
+       void reset(std::shared_ptr<Toc const>);
        ///
        void reset();
-};
-
-
-class TocModel : public QStandardItemModel
-{
-public:
        ///
-       TocModel(QObject * parent = 0);
+       void updateItem(DocIterator const & dit);
        ///
-       void reset(Toc const & toc);
+       void clear();
        ///
-       void reset();
+       QAbstractItemModel * model();
+       ///
+       QAbstractItemModel const * model() const;
+       ///
+       void sort(bool sort_it);
+       ///
+       bool isSorted() const { return is_sorted_; }
        ///
        TocItem const & tocItem(QModelIndex const & index) const;
        ///
@@ -58,16 +65,48 @@ private:
        ///
        void populate(unsigned int & index, QModelIndex const & parent);
        ///
-       QList<QModelIndex> toc_indexes_;
+       void setString(TocItem const & item, QModelIndex index);
+       ///
+       TocTypeModel * model_;
+       ///
+       QSortFilterProxyModel * sorted_model_;
        ///
-       Toc const * toc_;
+       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:
@@ -78,21 +117,25 @@ public:
        ///
        int depth(QString const & type);
        ///
-       QStandardItemModel * model(QString const & type);
+       QAbstractItemModel * model(QString const & type);
        ///
-       QStandardItemModel * nameModel() { return names_; }
+       QAbstractItemModel * nameModel();
        ///
-       QModelIndex currentIndex(QString const & type) const;
+       QModelIndex currentIndex(QString const & type,
+                                DocIterator const & dit) const;
        ///
        void goTo(QString const & type, QModelIndex const & index) const;
        ///
        void init(Buffer const & buffer);
        ///
-       void updateBackend() const;
-
-Q_SIGNALS:
-       /// Signal that the internal toc_models_ has been reset.
-       void modelReset();
+       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;
@@ -100,11 +143,11 @@ private:
        ///
        void clear();
        ///
-       BufferView const * bv_;
-       ///
        QHash<QString, TocModel *> models_;
        ///
        TocTypeModel * names_;
+       ///
+       TocModelSortProxyModel * names_sorted_;
 };
 
 } // namespace frontend