Print solder and paste masks if user asks for them.

Fixes: lp:1613057
* https://bugs.launchpad.net/kicad/+bug/1613057

pcbnew/pad_draw_functions.cpp

@@ -267,6 +267,22 @@ void D_PAD::Draw( EDA_DRAW_PANEL* aPanel, wxDC* aDC, GR_DRAWMODE aDraw_mode,
         else
             color = DARKDARKGRAY;
     }
+    // If use asks for masks to be printed, then print them.
+    else if( screen->m_IsPrinting )
+    {
+        if( ( IsOnLayer( B_Paste ) && brd->IsLayerVisible( B_Paste ) ) ||
+            ( IsOnLayer( F_Paste ) && brd->IsLayerVisible( F_Paste ) ) )
+        {
+            mask_margin = GetSolderPasteMargin();
+        }
+
+        if( ( IsOnLayer( B_Mask ) && brd->IsLayerVisible( B_Mask ) ) ||
+            ( IsOnLayer( F_Mask ) && brd->IsLayerVisible( F_Mask ) ) )
+        {
+            mask_margin.x = std::max( mask_margin.x, GetSolderMaskMargin() );
+            mask_margin.y = std::max( mask_margin.y, GetSolderMaskMargin() );
+        }
+    }
 
     if( ( aDraw_mode & GR_HIGHLIGHT ) && !( aDraw_mode & GR_AND ) )
         color.SetToLegacyHighlightColor();

pcbnew/print_board_functions.cpp

@@ -139,7 +139,7 @@ void PCB_EDIT_FRAME::PrintPage( wxDC* aDC,
     // Set all board layers as visible, because the print dialog has itself
     // a layer selection, that have priority over the layer manager setup
     LSET save_visible_brd_layers = Pcb->GetVisibleLayers();
-    Pcb->SetVisibleLayers( LSET::AllLayersMask() );
+    Pcb->SetVisibleLayers( aPrintMask );
 
     int save_visible_brd_elements = Pcb->GetVisibleElements();
     Pcb->SetElementVisibility( LAYER_PAD_FR, true );
@@ -147,40 +147,11 @@ void PCB_EDIT_FRAME::PrintPage( wxDC* aDC,
     Pcb->SetElementVisibility( LAYER_MOD_TEXT_FR, true );
     Pcb->SetElementVisibility( LAYER_MOD_TEXT_BK, true );
 
-    if( !( aPrintMask & LSET::AllCuMask() ).any() )
-    {
-        if( onePagePerLayer )
-        {
-            // We can print mask layers (solder mask and solder paste) with the actual
-            // pad sizes.  To do that, we must set ContrastModeDisplay to true and set
-            // the GetScreen()->m_Active_Layer to the current printed layer
-            displ_opts->m_ContrastModeDisplay = true;
-            displ_opts->m_DisplayPadFill = true;
-
-            // Calculate the active layer number to print from its mask layer:
-            GetScreen()->m_Active_Layer = B_Cu;
-
-            for( LAYER_NUM id = PCB_LAYER_ID_COUNT-1; id >= 0; --id )
-            {
-                if( aPrintMask[id] )
-                {
-                    GetScreen()->m_Active_Layer = PCB_LAYER_ID( id );
-                    break;
-                }
-            }
+    PCB_LAYER_ID layer = aPrintMask.ExtractLayer();
 
-            // pads on Silkscreen layer are usually plot in sketch mode:
-            if( GetScreen()->m_Active_Layer == B_SilkS ||
-                GetScreen()->m_Active_Layer == F_SilkS )
-            {
-                displ_opts->m_DisplayPadFill = false;
-            }
-        }
-        else
-        {
-            displ_opts->m_DisplayPadFill = false;
-        }
-    }
+    // pads on Silkscreen layer are usually printed in sketch mode:
+    if( layer == B_SilkS || layer == F_SilkS )
+        displ_opts->m_DisplayPadFill = false;
 
     displ_opts->m_DisplayPadNum = false;