Keep footprint selection in Symbol Chooser history list.

Fixes https://gitlab.com/kicad/code/kicad/issues/1841

common/lib_tree_model.cpp

@@ -164,6 +164,7 @@ LIB_TREE_NODE_LIB_ID::LIB_TREE_NODE_LIB_ID( LIB_TREE_NODE* aParent, LIB_TREE_ITE
 
     m_Name = aItem->GetName();
     m_Desc = aItem->GetDescription();
+    m_Footprint = aItem->GetFootprint();
 
     m_MatchName = aItem->GetName();
     m_SearchText = aItem->GetSearchText();

eeschema/dialogs/dialog_choose_symbol.cpp

@@ -515,16 +515,18 @@ void DIALOG_CHOOSE_SYMBOL::OnFootprintSelected( wxCommandEvent& aEvent )
 
 void DIALOG_CHOOSE_SYMBOL::OnComponentPreselected( wxCommandEvent& aEvent )
 {
-    int unit = 0;
+    LIB_TREE_NODE* node = m_tree->GetCurrentTreeNode();
 
-    LIB_ID id = m_tree->GetSelectedLibId( &unit );
-
-    if( id.IsValid() )
+    if( node && node->m_LibId.IsValid() )
     {
-        m_symbol_preview->DisplaySymbol( id, unit );
+        m_symbol_preview->DisplaySymbol( node->m_LibId, node->m_Unit );
+
+        if( !node->m_Footprint.IsEmpty() )
+            ShowFootprint( node->m_Footprint );
+        else
+            ShowFootprintFor( node->m_LibId );
 
-        ShowFootprintFor( id );
-        PopulateFootprintSelector( id );
+        PopulateFootprintSelector( node->m_LibId );
     }
     else
     {
@@ -533,7 +535,7 @@ void DIALOG_CHOOSE_SYMBOL::OnComponentPreselected( wxCommandEvent& aEvent )
         if( m_fp_preview && m_fp_preview->IsInitialized() )
             m_fp_preview->SetStatusText( wxEmptyString );
 
-        PopulateFootprintSelector( id );
+        PopulateFootprintSelector( LIB_ID() );
     }
 }
 

eeschema/lib_symbol.h

@@ -169,6 +169,11 @@ public:
 
     wxString GetSearchText() override;
 
+    wxString GetFootprint() override
+    {
+        return GetFootprintField().GetText();
+    }
+
     /**
      * For symbols derived from other symbols, IsRoot() indicates no derivation.
      */

eeschema/picksymbol.cpp

@@ -131,7 +131,10 @@ PICKED_SYMBOL SCH_BASE_FRAME::PickSymbolFromLibTree( const SYMBOL_LIBRARY_FILTER
             modelAdapter->SetFilter( SYMBOL_TREE_MODEL_ADAPTER::SYM_FILTER_POWER );
     }
 
-    std::vector< LIB_TREE_ITEM* > history_list;
+    std::vector<LIB_SYMBOL>     history_list_storage;
+    std::vector<LIB_TREE_ITEM*> history_list;
+
+    history_list_storage.reserve( aHistoryList.size() );
 
     for( const PICKED_SYMBOL& i : aHistoryList )
     {
@@ -139,7 +142,19 @@ PICKED_SYMBOL SCH_BASE_FRAME::PickSymbolFromLibTree( const SYMBOL_LIBRARY_FILTER
 
         // This can be null, for example when a symbol has been deleted from a library
         if( symbol )
-            history_list.push_back( symbol );
+        {
+            history_list_storage.emplace_back( *symbol );
+
+            for( const std::pair<int, wxString>& fieldDef : i.Fields )
+            {
+                LIB_FIELD* field = history_list_storage.back().GetFieldById( fieldDef.first );
+
+                if( field )
+                    field->SetText( fieldDef.second );
+            }
+
+            history_list.push_back( &history_list_storage.back() );
+        }
     }
 
     modelAdapter->DoAddLibrary( wxT( "-- " ) + _( "Recently Used" ) + wxT( " --" ), wxEmptyString,

include/lib_tree_item.h

@@ -56,6 +56,11 @@ public:
      */
     virtual bool IsRoot() const { return true; }
 
+    /**
+     * For items with footprint fields.
+     */
+    virtual wxString GetFootprint() { return wxEmptyString; }
+
     /**
      * For items with units, return the number of units.
      */

include/lib_tree_model.h

@@ -130,6 +130,7 @@ public:
 
     wxString    m_Name;        // Actual name of the part
     wxString    m_Desc;        // Description to be displayed
+    wxString    m_Footprint;   // Footprint ID as a string (ie: the footprint field text)
     wxString    m_MatchName;   // Normalized name for matching
     wxString    m_SearchText;  // Descriptive text to search
     bool        m_Normalized;  // Support for lazy normalization.

pcbnew/footprint_preview_panel.cpp

@@ -86,7 +86,7 @@ const COLOR4D& FOOTPRINT_PREVIEW_PANEL::GetForegroundColor()
     KIGFX::PAINTER* painter = GetView()->GetPainter();
     auto settings = static_cast<KIGFX::PCB_RENDER_SETTINGS*>( painter->GetSettings() );
 
-    return settings->GetCursorColor();
+    return settings->GetLayerColor( F_Fab );
 }