From effc8bebb143fb2a5459a6586ff8b083665b3d52 Mon Sep 17 00:00:00 2001
From: Maciej Suminski <maciej.suminski@cern.ch>
Date: Mon, 12 Dec 2016 11:51:08 +0100
Subject: [PATCH] Store view flip setting between canvas changes

---
 common/view/view.cpp | 6 ++++++
 include/view/view.h  | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/common/view/view.cpp b/common/view/view.cpp
index f80fc3d22f..2f09553fa6 100644
--- a/common/view/view.cpp
+++ b/common/view/view.cpp
@@ -256,6 +256,7 @@ VIEW::VIEW( bool aIsDynamic ) :
     m_enableOrderModifier( true ),
     m_scale( 4.0 ),
     m_minScale( 4.0 ), m_maxScale( 15000 ),
+    m_mirrorX( false ), m_mirrorY( false ),
     m_painter( NULL ),
     m_gal( NULL ),
     m_dynamic( aIsDynamic )
@@ -478,6 +479,7 @@ void VIEW::SetGAL( GAL* aGal )
     // force the new GAL to display the current viewport.
     SetCenter( m_center );
     SetScale( m_scale );
+    SetMirror( m_mirrorX, m_mirrorY );
 }
 
 
@@ -510,6 +512,10 @@ void VIEW::SetViewport( const BOX2D& aViewport )
 
 void VIEW::SetMirror( bool aMirrorX, bool aMirrorY )
 {
+    wxASSERT_MSG( !aMirrorY, _( "Mirroring for Y axis is not supported yet" ) );
+
+    m_mirrorX = aMirrorX;
+    m_mirrorY = aMirrorY;
     m_gal->SetFlip( aMirrorX, aMirrorY );
 
     // Redraw everything
diff --git a/include/view/view.h b/include/view/view.h
index aadd42ad4e..2ad3f71301 100644
--- a/include/view/view.h
+++ b/include/view/view.h
@@ -734,6 +734,12 @@ private:
     /// Scale upper limit
     double m_maxScale;
 
+    ///> Horizontal flip flag
+    bool m_mirrorX;
+
+    ///> Vertical flip flag
+    bool m_mirrorY;
+
     /// PAINTER contains information how do draw items
     PAINTER* m_painter;