# 
# 
# patch "guitone/src/model/Toposort.cpp"
#  from [f059e8338ac1c5174137d0a8ba26fbb2e1db4133]
#    to [2433a2796f929d4fe2d46cc72a4d83d92b9d0eca]
# 
# patch "guitone/src/model/Toposort.h"
#  from [c71cfd90102481cc0ecc126dafa1b20bf5785e3e]
#    to [1bdc2ef1e7a21d4c24b6048b920b92b9ece52391]
# 
============================================================
--- guitone/src/model/Toposort.cpp	f059e8338ac1c5174137d0a8ba26fbb2e1db4133
+++ guitone/src/model/Toposort.cpp	2433a2796f929d4fe2d46cc72a4d83d92b9d0eca
@@ -24,7 +24,8 @@
 #include <QStringList>
 #include <QAbstractItemModel>
 
-Toposort::Toposort(QObject *parent) : QSortFilterProxyModel(parent)
+Toposort::Toposort(QObject *parent) : QSortFilterProxyModel(parent),
+  sortColumn(0), sortOrder(Qt::AscendingOrder)
 {
     ordRevisions = new RevisionMap();
     mtnDelegate  = new MonotoneDelegate(this);
@@ -56,7 +57,7 @@ void Toposort::setSourceModel(QAbstractI
     );
 }
 
-bool Toposort::lessThan(const QModelIndex &left, const QModelIndex &right)
+bool Toposort::lessThan(const QModelIndex &left, const QModelIndex &right) const
 {
     QString leftRev = sourceModel()->data(left).toString();
     QString rightRev = sourceModel()->data(right).toString();
@@ -66,7 +67,6 @@ bool Toposort::lessThan(const QModelInde
         qDebug("Toposort::lessThan: one or both revisions not found,");
         return false;
     }
-    qDebug("sorting %s and %s", qPrintable(leftRev), qPrintable(rightRev));
     
     return ordRevisions->value(leftRev) < ordRevisions->value(rightRev);
 }
@@ -76,6 +76,13 @@ bool Toposort::filterAcceptsRow(int sour
     return showRows;
 }
 
+void Toposort::sort(int column, Qt::SortOrder order)
+{
+    sortOrder = order;
+	sortColumn = column;
+    QSortFilterProxyModel::sort(column, order);
+}
+
 void Toposort::sortModel()
 {
     showRows = false;
@@ -88,7 +95,6 @@ void Toposort::sortModel()
         qDebug("Toposort::sortModel: no items found in source model");
         return;
     }
-    qDebug("building rev list");
     
     QStringList revs;
     do
@@ -104,7 +110,6 @@ void Toposort::sortModel()
     }
     while (true);
     
-    qDebug("calling toposort");
     QStringList cmd;
     cmd.append("toposort");
 	cmd << revs;
@@ -125,8 +130,9 @@ void Toposort::parseOutput()
     
     showRows = true;
     filterChanged();
+    clear();
     
-    qDebug("Toposort:parseOutput: revisions sorted");
+    qDebug("Toposort:parseOutput: sorting finished");
     
     // signal that we've finished (whoever listens to that)
     emit sortingFinished();
============================================================
--- guitone/src/model/Toposort.h	c71cfd90102481cc0ecc126dafa1b20bf5785e3e
+++ guitone/src/model/Toposort.h	1bdc2ef1e7a21d4c24b6048b920b92b9ece52391
@@ -36,18 +36,21 @@ public:
     Toposort(QObject*);
     virtual ~Toposort();
     void setSourceModel(QAbstractItemModel *);
+    void sort(int, Qt::SortOrder);
 
 signals:
     void sortingFinished();
     
 private:
     void parseOutput();
-    bool lessThan(const QModelIndex &, const QModelIndex &);
+    bool lessThan(const QModelIndex &, const QModelIndex &) const;
     bool filterAcceptsRow(int, const QModelIndex &) const;
 
     RevisionMap * ordRevisions;
     MonotoneDelegate * mtnDelegate;
     bool showRows;
+    int sortColumn;
+    Qt::SortOrder sortOrder;
     
 private slots:
     void sortModel();