From cbf7d708b28d0b07fb6a42b74f613f74da815508 Mon Sep 17 00:00:00 2001
From: Maciej Suminski <maciej.suminski@cern.ch>
Date: Tue, 23 Oct 2018 10:41:30 +0200
Subject: [PATCH] pcbnew: Draw title block normally even when the view is
 flipped

---
 common/worksheet_viewitem.cpp            | 15 ++++++++++++++-
 include/gal/graphics_abstraction_layer.h | 15 +++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/common/worksheet_viewitem.cpp b/common/worksheet_viewitem.cpp
index c1e3d9426f..97a1fd6e55 100644
--- a/common/worksheet_viewitem.cpp
+++ b/common/worksheet_viewitem.cpp
@@ -1,7 +1,7 @@
 /*
  * This program source code file is part of KICAD, a free EDA CAD application.
  *
- * Copyright (C) 2013 CERN
+ * Copyright (C) 2013-2018 CERN
  * @author Maciej Suminski <maciej.suminski@cern.ch>
  *
  * This program is free software; you can redistribute it and/or
@@ -97,6 +97,16 @@ void WORKSHEET_VIEWITEM::ViewDraw( int aLayer, VIEW* aView ) const
     COLOR4D color = settings->GetColor( this, aLayer );
     drawList.BuildWorkSheetGraphicList( *m_pageInfo, *m_titleBlock, color, color );
 
+    // Draw the title block normally even if the view is flipped
+    bool flipped = gal->IsFlippedX();
+
+    if( flipped )
+    {
+        gal->Save();
+        gal->Translate( VECTOR2D( m_pageInfo->GetWidthMils() * m_mils2IUscalefactor, 0 ) );
+        gal->Scale( VECTOR2D( -1.0, 1.0 ) );
+    }
+
     // Draw all the components that make the page layout
     WS_DRAW_ITEM_BASE* item = drawList.GetFirst();
     while( item )
@@ -130,6 +140,9 @@ void WORKSHEET_VIEWITEM::ViewDraw( int aLayer, VIEW* aView ) const
     // Draw gray line that outlines the sheet size
     if( settings->GetShowPageLimits() )
         drawBorder( gal );
+
+    if( flipped )
+        gal->Restore();
 }
 
 
diff --git a/include/gal/graphics_abstraction_layer.h b/include/gal/graphics_abstraction_layer.h
index a033846d17..112f353816 100644
--- a/include/gal/graphics_abstraction_layer.h
+++ b/include/gal/graphics_abstraction_layer.h
@@ -771,6 +771,21 @@ public:
         globalFlipY = yAxis;
     }
 
+    /**
+     * Return true if flip flag for the X axis is set.
+     */
+    bool IsFlippedX() const
+    {
+        return globalFlipX;
+    }
+
+    /**
+     * Return true if flip flag for the Y axis is set.
+     */
+    bool IsFlippedY() const
+    {
+        return globalFlipY;
+    }
 
     // ---------------------------
     // Buffer manipulation methods