Modified the way the history interacts with other components.

* Main class is now responsible for updating map components
  whenever the current map changes (even rewinding): this simplifies
  other objects because they don't have to know anything about how
  the data is being displayed later (no CP/RP juggling everywhere)
* Added undo/reset actions to main view, including menu items
* ProjectionHistory now has specific signals for each change
  happening to the history

1 files changed, 4 insertions, 2 deletions

diff --git a/projectionhistory.h b/projectionhistory.h
index 28a9b4b..9fe9ffc 100644
--- a/projectionhistory.h
+++ b/projectionhistory.h
@@ -20,10 +20,12 @@ public:
     bool hasPrev() const  { return m_hasPrev; }
 
     void undo();
-    void undoAll();
+    void reset();
 
 signals:
-    void historyChanged(const arma::mat &currentY) const;
+    void undoPerformed(const arma::mat &prevY) const;
+    void resetPerformed(const arma::mat &firstY) const;
+    void mapAdded(const arma::mat &newY) const;
 
 public slots:
     void addMap(const arma::mat &Y);