From c80d92e927e4ed609ac3d992525c0d76f0a5787b Mon Sep 17 00:00:00 2001
From: jean-pierre charras <jp.charras@wanadoo.fr>
Date: Mon, 7 Dec 2015 10:24:31 +0100
Subject: [PATCH] Kicad manager: fix a potential bug which could crash Kicad
 manager. math_for_graphics.cpp: remove useless includes.

---
 kicad/class_treeproject_item.cpp | 3 ++-
 polygon/math_for_graphics.cpp    | 2 --
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/kicad/class_treeproject_item.cpp b/kicad/class_treeproject_item.cpp
index 1aa2d8eca3..8a6e135a8a 100644
--- a/kicad/class_treeproject_item.cpp
+++ b/kicad/class_treeproject_item.cpp
@@ -173,7 +173,8 @@ void TREEPROJECT_ITEM::Activate( TREE_PROJECT_FRAME* prjframe )
     wxString        fullFileName = GetFileName();
     wxTreeItemId    id = GetId();
 
-    KICAD_MANAGER_FRAME* frame = (KICAD_MANAGER_FRAME*) Pgm().App().GetTopWindow();
+    KICAD_MANAGER_FRAME* frame = prjframe->m_Parent;
+    wxASSERT( frame );
 
     switch( GetType() )
     {
diff --git a/polygon/math_for_graphics.cpp b/polygon/math_for_graphics.cpp
index c43f3239ba..0dbf7a2cbd 100644
--- a/polygon/math_for_graphics.cpp
+++ b/polygon/math_for_graphics.cpp
@@ -6,9 +6,7 @@
 #include <float.h>
 #include <limits.h>
 #include <common.h>
-#include <fctsys.h>
 
-#include <PolyLine.h>
 #include <math_for_graphics.h>
 
 static bool InRange( double x, double xi, double xf );