Use QFontMetrics information for underlines (and friends) width and position

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

diff --git a/src/frontends/qt4/TocModel.h b/src/frontends/qt4/TocModel.h
index d5e7ea830d08e070a36ba69c9bfbfc8979fefce9..83e957b4a9ddac6a4eae98670498f8797541d7a0 100644 (file)
--- a/src/frontends/qt4/TocModel.h
+++ b/src/frontends/qt4/TocModel.h
@@ -12,13 +12,8 @@
 #ifndef TOCMODEL_H
 #define TOCMODEL_H
 
-#include "qt_helpers.h"
-
 #include <QHash>
-#include <QList>
 #include <QSortFilterProxyModel>
-#include <QStandardItemModel>
-#include <QStringList>
 
 namespace lyx {
 
@@ -30,26 +25,23 @@ class TocItem;
 
 namespace frontend {
 
-class TocTypeModel : public QStandardItemModel
-{
-public:
-       ///
-       TocTypeModel(QObject * parent = 0);
-       ///
-       void reset();
-};
-
+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
 {
 public:
        ///
-       TocModel(QObject * parent = 0);
+       TocModel(QObject * parent);
        ///
        void reset(Toc const & toc);
        ///
        void reset();
        ///
+       void updateItem(DocIterator const & dit);
+       ///
        void clear();
        ///
        QAbstractItemModel * model();
@@ -76,16 +68,40 @@ private:
        ///
        bool is_sorted_;
        ///
-       QList<QModelIndex> toc_indexes_;
-       ///
        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:
@@ -106,11 +122,14 @@ public:
        ///
        void init(Buffer const & buffer);
        ///
-       void updateBackend() const;
+       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.
@@ -128,7 +147,7 @@ private:
        ///
        TocTypeModel * names_;
        ///
-       QSortFilterProxyModel * names_sorted_;
+       TocModelSortProxyModel * names_sorted_;
 };
 
 } // namespace frontend