From e452992a6ce3374ff849c0aef5e3460cca2effb7 Mon Sep 17 00:00:00 2001
From: Maciej Suminski <maciej.suminski@cern.ch>
Date: Thu, 11 Aug 2016 14:42:14 +0200
Subject: [PATCH] Cursor centering fix

---
 eeschema/sim/sim_plot_panel.cpp | 10 ++++++++--
 eeschema/sim/sim_plot_panel.h   | 12 ++++++++++--
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/eeschema/sim/sim_plot_panel.cpp b/eeschema/sim/sim_plot_panel.cpp
index 75fab4a0e6..9245a5e2c6 100644
--- a/eeschema/sim/sim_plot_panel.cpp
+++ b/eeschema/sim/sim_plot_panel.cpp
@@ -298,8 +298,14 @@ void CURSOR::Plot( wxDC& aDC, mpWindow& aWindow )
         wxQueueEvent( aWindow.GetParent(), new wxCommandEvent( EVT_SIM_CURSOR_UPDATE ) );
     }
     else
+    {
+        m_updateRef = true;
+    }
+
+    if( m_updateRef )
     {
         UpdateReference();
+        m_updateRef = false;
     }
 
     // Line length in horizontal and vertical dimensions
@@ -548,8 +554,8 @@ void SIM_PLOT_PANEL::EnableCursor( const wxString& aName, bool aEnable )
     if( aEnable )
     {
         CURSOR* c = new CURSOR( t );
-        //int plotCenter = GetMarginLeft() + ( GetXScreen() - GetMarginLeft() - GetMarginRight() ) / 2;
-        //c->Move( wxPoint( plotCenter, 0 ) );
+        int plotCenter = GetMarginLeft() + ( GetXScreen() - GetMarginLeft() - GetMarginRight() ) / 2;
+        c->SetX( plotCenter );
         t->SetCursor( c );
         AddLayer( c );
     }
diff --git a/eeschema/sim/sim_plot_panel.h b/eeschema/sim/sim_plot_panel.h
index c88589abcd..bd337ab0ec 100644
--- a/eeschema/sim/sim_plot_panel.h
+++ b/eeschema/sim/sim_plot_panel.h
@@ -37,13 +37,21 @@ class CURSOR : public mpInfoLayer
 public:
     CURSOR( const TRACE* aTrace )
         : mpInfoLayer( wxRect( 0, 0, DRAG_MARGIN, DRAG_MARGIN ), wxTRANSPARENT_BRUSH ),
-        m_trace( aTrace ), m_updateRequired( true ), m_coords( 0.0, 0.0 ), m_window( nullptr )
+        m_trace( aTrace ), m_updateRequired( true ), m_updateRef( false ),
+        m_coords( 0.0, 0.0 ), m_window( nullptr )
     {
         SetDrawOutsideMargins( false );
     }
 
     void Plot( wxDC& aDC, mpWindow& aWindow ) override;
 
+    void SetX( int aX )
+    {
+        m_reference.x = 0;
+        m_updateRef = true;
+        Move( wxPoint( aX, 0 ) );
+    }
+
     void Update()
     {
         m_updateRequired = true;
@@ -66,7 +74,7 @@ public:
 
 private:
     const TRACE* m_trace;
-    bool m_updateRequired;
+    bool m_updateRequired, m_updateRef;
     wxRealPoint m_coords;
     mpWindow* m_window;