pcb_control.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2014-2016 CERN
 * Copyright (C) 2019-2022 KiCad Developers, see AUTHORS.txt for contributors.
 * @author Maciej Suminski <[email protected]>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
#include <tools/edit_tool.h>
#include <tools/board_inspection_tool.h>
#include <router/router_tool.h>
#include <pgm_base.h>
#include <tools/pcb_actions.h>
#include <tools/pcb_control.h>
#include <tools/pcb_picker_tool.h>
#include <tools/pcb_selection_tool.h>
#include <tools/board_reannotate_tool.h>
#include <3d_viewer/eda_3d_viewer_frame.h>
#include <board_commit.h>
#include <board.h>
#include <board_design_settings.h>
#include <board_item.h>
#include <dialogs/dialog_paste_special.h>
#include <pcb_dimension.h>
#include <footprint.h>
#include <pcb_group.h>
#include <pcb_textbox.h>
#include <pcb_track.h>
#include <wildcards_and_files_ext.h>
#include <zone.h>
#include <fp_shape.h>
#include <fp_textbox.h>
#include <confirm.h>
#include <connectivity/connectivity_data.h>
#include <core/kicad_algo.h>
#include <kicad_clipboard.h>
#include <origin_viewitem.h>
#include <pcb_edit_frame.h>
#include <pcb_painter.h>
#include <string_utf8_map.h>
#include <settings/color_settings.h>
#include <tool/tool_manager.h>
#include <footprint_edit_frame.h>
#include <widgets/wx_progress_reporters.h>
#include <widgets/infobar.h>
#include <wx/hyperlink.h>
 
using namespace std::placeholders;
 
 
// files.cpp
extern bool AskLoadBoardFileName( PCB_EDIT_FRAME* aParent, int* aCtl, wxString* aFileName,
 bool aKicadFilesOnly = false );
extern IO_MGR::PCB_FILE_T plugin_type( const wxString& aFileName, int aCtl );
 
 
PCB_CONTROL::PCB_CONTROL() :
 PCB_TOOL_BASE( "pcbnew.Control" ),
 m_frame( nullptr ),
 m_pickerItem( nullptr )
{
 m_gridOrigin.reset( new KIGFX::ORIGIN_VIEWITEM() );
}
 
 
PCB_CONTROL::~PCB_CONTROL()
{
}
 
 
void PCB_CONTROL::Reset( RESET_REASON aReason )
{
 m_frame = getEditFrame<PCB_BASE_FRAME>();
 
 if( aReason == MODEL_RELOAD || aReason == GAL_SWITCH )
 {
 m_gridOrigin->SetPosition( board()->GetDesignSettings().GetGridOrigin() );
 m_gridOrigin->SetColor( m_frame->GetGridColor() );
 getView()->Remove( m_gridOrigin.get() );
 getView()->Add( m_gridOrigin.get() );
 }
}
 
 
int PCB_CONTROL::AddLibrary( const TOOL_EVENT& aEvent )
{
 if( m_frame->IsType( FRAME_FOOTPRINT_EDITOR ) || m_frame->IsType( FRAME_PCB_EDITOR ) )
 {
 if( aEvent.IsAction( &ACTIONS::newLibrary ) )
 static_cast<PCB_BASE_EDIT_FRAME*>( m_frame )->CreateNewLibrary();
 else if( aEvent.IsAction( &ACTIONS::addLibrary ) )
 static_cast<PCB_BASE_EDIT_FRAME*>( m_frame )->AddLibrary();
 }
 
 return 0;
}
 
 
int PCB_CONTROL::DdAddLibrary( const TOOL_EVENT& aEvent )
{
 const wxString fn = *aEvent.Parameter<wxString*>();
 static_cast<PCB_BASE_EDIT_FRAME*>( m_frame )->AddLibrary( fn );
 return 0;
}
 
 
int PCB_CONTROL::DdImportFootprint( const TOOL_EVENT& aEvent )
{
 const wxString fn = *aEvent.Parameter<wxString*>();
 static_cast<FOOTPRINT_EDIT_FRAME*>( m_frame )->ImportFootprint( fn );
 m_frame->Zoom_Automatique( false );
 return 0;
}
 
 
int PCB_CONTROL::Quit( const TOOL_EVENT& aEvent )
{
 m_frame->Close( false );
 return 0;
}
 
 
template<class T> void Flip( T& aValue )
{
 aValue = !aValue;
}
 
 
int PCB_CONTROL::TrackDisplayMode( const TOOL_EVENT& aEvent )
{
 Flip( displayOptions().m_DisplayPcbTrackFill );
 
 for( PCB_TRACK* track : board()->Tracks() )
 {
 if( track->Type() == PCB_TRACE_T || track->Type() == PCB_ARC_T )
 view()->Update( track, KIGFX::REPAINT );
 }
 
 canvas()->Refresh();
 
 return 0;
}
 
 
int PCB_CONTROL::ToggleRatsnest( const TOOL_EVENT& aEvent )
{
 if( aEvent.IsAction( &PCB_ACTIONS::showRatsnest ) )
 {
 // N.B. Do not disable the Ratsnest layer here. We use it for local ratsnest
 Flip( displayOptions().m_ShowGlobalRatsnest );
 getEditFrame<PCB_EDIT_FRAME>()->SetElementVisibility( LAYER_RATSNEST,
 displayOptions().m_ShowGlobalRatsnest );
 
 }
 else if( aEvent.IsAction( &PCB_ACTIONS::ratsnestLineMode ) )
 {
 Flip( displayOptions().m_DisplayRatsnestLinesCurved );
 }
 
 canvas()->RedrawRatsnest();
 canvas()->Refresh();
 
 return 0;
}
 
 
int PCB_CONTROL::ViaDisplayMode( const TOOL_EVENT& aEvent )
{
 Flip( displayOptions().m_DisplayViaFill );
 
 for( PCB_TRACK* track : board()->Tracks() )
 {
 if( track->Type() == PCB_VIA_T )
 view()->Update( track, KIGFX::REPAINT );
 }
 
 canvas()->Refresh();
 
 return 0;
}
 
 
void PCB_CONTROL::unfilledZoneCheck()
{
 if( Pgm().GetCommonSettings()->m_DoNotShowAgain.zone_fill_warning )
 return;
 
 bool unfilledZones = false;
 
 for( const ZONE* zone : board()->Zones() )
 {
 if( !zone->GetIsRuleArea() && !zone->IsFilled() )
 {
 unfilledZones = true;
 break;
 }
 }
 
 if( unfilledZones )
 {
 WX_INFOBAR* infobar = frame()->GetInfoBar();
 wxHyperlinkCtrl* button = new wxHyperlinkCtrl( infobar, wxID_ANY, _( "Don't show again" ),
 wxEmptyString );
 
 button->Bind( wxEVT_COMMAND_HYPERLINK, std::function<void( wxHyperlinkEvent& aEvent )>(
 [&]( wxHyperlinkEvent& aEvent )
 {
 Pgm().GetCommonSettings()->m_DoNotShowAgain.zone_fill_warning = true;
 frame()->GetInfoBar()->Dismiss();
 } ) );
 
 infobar->RemoveAllButtons();
 infobar->AddButton( button );
 
 wxString msg;
 msg.Printf( _( "Not all zones are filled. Use Edit > Fill All Zones (%s) "
 "if you wish to see all fills." ),
 KeyNameFromKeyCode( PCB_ACTIONS::zoneFillAll.GetHotKey() ) );
 
 infobar->ShowMessageFor( msg, 5000, wxICON_WARNING );
 }
}
 
 
int PCB_CONTROL::ZoneDisplayMode( const TOOL_EVENT& aEvent )
{
 PCB_DISPLAY_OPTIONS opts = frame()->GetDisplayOptions();
 
 // Apply new display options to the GAL canvas
 if( aEvent.IsAction( &PCB_ACTIONS::zoneDisplayFilled ) )
 {
 unfilledZoneCheck();
 
 opts.m_ZoneDisplayMode = ZONE_DISPLAY_MODE::SHOW_FILLED;
 }
 else if( aEvent.IsAction( &PCB_ACTIONS::zoneDisplayOutline ) )
 {
 opts.m_ZoneDisplayMode = ZONE_DISPLAY_MODE::SHOW_ZONE_OUTLINE;
 }
 else if( aEvent.IsAction( &PCB_ACTIONS::zoneDisplayFractured ) )
 {
 opts.m_ZoneDisplayMode = ZONE_DISPLAY_MODE::SHOW_FRACTURE_BORDERS;
 }
 else if( aEvent.IsAction( &PCB_ACTIONS::zoneDisplayTriangulated ) )
 {
 opts.m_ZoneDisplayMode = ZONE_DISPLAY_MODE::SHOW_TRIANGULATION;
 }
 else if( aEvent.IsAction( &PCB_ACTIONS::zoneDisplayToggle ) )
 {
 if( opts.m_ZoneDisplayMode == ZONE_DISPLAY_MODE::SHOW_FILLED )
 opts.m_ZoneDisplayMode = ZONE_DISPLAY_MODE::SHOW_ZONE_OUTLINE;
 else
 opts.m_ZoneDisplayMode = ZONE_DISPLAY_MODE::SHOW_FILLED;
 }
 else
 {
 wxFAIL;
 }
 
 m_frame->SetDisplayOptions( opts );
 
 for( ZONE* zone : board()->Zones() )
 view()->Update( zone, KIGFX::REPAINT );
 
 canvas()->Refresh();
 
 return 0;
}
 
 
int PCB_CONTROL::HighContrastMode( const TOOL_EVENT& aEvent )
{
 PCB_DISPLAY_OPTIONS opts = frame()->GetDisplayOptions();
 
 opts.m_ContrastModeDisplay = opts.m_ContrastModeDisplay == HIGH_CONTRAST_MODE::NORMAL
 ? HIGH_CONTRAST_MODE::DIMMED
 : HIGH_CONTRAST_MODE::NORMAL;
 
 m_frame->SetDisplayOptions( opts );
 
 return 0;
}
 
 
int PCB_CONTROL::HighContrastModeCycle( const TOOL_EVENT& aEvent )
{
 PCB_DISPLAY_OPTIONS opts = frame()->GetDisplayOptions();
 
 switch( opts.m_ContrastModeDisplay )
 {
 case HIGH_CONTRAST_MODE::NORMAL: opts.m_ContrastModeDisplay = HIGH_CONTRAST_MODE::DIMMED; break;
 case HIGH_CONTRAST_MODE::DIMMED: opts.m_ContrastModeDisplay = HIGH_CONTRAST_MODE::HIDDEN; break;
 case HIGH_CONTRAST_MODE::HIDDEN: opts.m_ContrastModeDisplay = HIGH_CONTRAST_MODE::NORMAL; break;
 }
 
 m_frame->SetDisplayOptions( opts );
 
 return 0;
}
 
 
int PCB_CONTROL::NetColorModeCycle( const TOOL_EVENT& aEvent )
{
 PCB_DISPLAY_OPTIONS opts = frame()->GetDisplayOptions();
 
 switch( opts.m_NetColorMode )
 {
 case NET_COLOR_MODE::ALL: opts.m_NetColorMode = NET_COLOR_MODE::RATSNEST; break;
 case NET_COLOR_MODE::RATSNEST: opts.m_NetColorMode = NET_COLOR_MODE::OFF; break;
 case NET_COLOR_MODE::OFF: opts.m_NetColorMode = NET_COLOR_MODE::ALL; break;
 }
 
 m_frame->SetDisplayOptions( opts );
 
 return 0;
}
 
 
int PCB_CONTROL::RatsnestModeCycle( const TOOL_EVENT& aEvent )
{
 if( !displayOptions().m_ShowGlobalRatsnest )
 {
 displayOptions().m_ShowGlobalRatsnest = true;
 displayOptions().m_RatsnestMode = RATSNEST_MODE::ALL;
 }
 else if( displayOptions().m_RatsnestMode == RATSNEST_MODE::ALL )
 {
 displayOptions().m_RatsnestMode = RATSNEST_MODE::VISIBLE;
 }
 else
 {
 displayOptions().m_ShowGlobalRatsnest = false;
 }
 
 return 0;
}
 
 
int PCB_CONTROL::LayerSwitch( const TOOL_EVENT& aEvent )
{
 m_frame->SwitchLayer( aEvent.Parameter<PCB_LAYER_ID>() );
 
 return 0;
}
 
 
int PCB_CONTROL::LayerNext( const TOOL_EVENT& aEvent )
{
 PCB_BASE_FRAME* editFrame = m_frame;
 BOARD* brd = board();
 int layer = editFrame->GetActiveLayer();
 int startLayer = layer;
 
 while( startLayer != ++layer )
 {
 if( brd->IsLayerVisible( static_cast<PCB_LAYER_ID>( layer ) ) && IsCopperLayer( layer ) )
 break;
 
 if( layer >= B_Cu )
 layer = F_Cu - 1;
 }
 
 wxCHECK( IsCopperLayer( layer ), 0 );
 editFrame->SwitchLayer( ToLAYER_ID( layer ) );
 
 return 0;
}
 
 
int PCB_CONTROL::LayerPrev( const TOOL_EVENT& aEvent )
{
 PCB_BASE_FRAME* editFrame = m_frame;
 BOARD* brd = board();
 int layer = editFrame->GetActiveLayer();
 int startLayer = layer;
 
 while( startLayer != --layer )
 {
 if( IsCopperLayer( layer ) // also test for valid layer id (layer >= F_Cu)
 && brd->IsLayerVisible( static_cast<PCB_LAYER_ID>( layer ) ) )
 {
 break;
 }
 
 if( layer <= F_Cu )
 layer = B_Cu + 1;
 }
 
 wxCHECK( IsCopperLayer( layer ), 0 );
 editFrame->SwitchLayer( ToLAYER_ID( layer ) );
 
 return 0;
}
 
 
int PCB_CONTROL::LayerToggle( const TOOL_EVENT& aEvent )
{
 int currentLayer = m_frame->GetActiveLayer();
 PCB_SCREEN* screen = m_frame->GetScreen();
 
 if( currentLayer == screen->m_Route_Layer_TOP )
 m_frame->SwitchLayer( screen->m_Route_Layer_BOTTOM );
 else
 m_frame->SwitchLayer( screen->m_Route_Layer_TOP );
 
 return 0;
}
 
 
// It'd be nice to share the min/max with the DIALOG_COLOR_PICKER, but those are
// set in wxFormBuilder.
#define ALPHA_MIN 0.20
#define ALPHA_MAX 1.00
#define ALPHA_STEP 0.05
 
 
int PCB_CONTROL::LayerAlphaInc( const TOOL_EVENT& aEvent )
{
 COLOR_SETTINGS* settings = m_frame->GetColorSettings();
 int currentLayer = m_frame->GetActiveLayer();
 KIGFX::COLOR4D currentColor = settings->GetColor( currentLayer );
 
 if( currentColor.a <= ALPHA_MAX - ALPHA_STEP )
 {
 currentColor.a += ALPHA_STEP;
 settings->SetColor( currentLayer, currentColor );
 m_frame->GetCanvas()->UpdateColors();
 
 KIGFX::VIEW* view = m_frame->GetCanvas()->GetView();
 view->UpdateLayerColor( currentLayer );
 view->UpdateLayerColor( GetNetnameLayer( currentLayer ) );
 
 if( IsCopperLayer( currentLayer ) )
 view->UpdateLayerColor( ZONE_LAYER_FOR( currentLayer ) );
 }
 else
 {
 wxBell();
 }
 
 return 0;
}
 
 
int PCB_CONTROL::LayerAlphaDec( const TOOL_EVENT& aEvent )
{
 COLOR_SETTINGS* settings = m_frame->GetColorSettings();
 int currentLayer = m_frame->GetActiveLayer();
 KIGFX::COLOR4D currentColor = settings->GetColor( currentLayer );
 
 if( currentColor.a >= ALPHA_MIN + ALPHA_STEP )
 {
 currentColor.a -= ALPHA_STEP;
 settings->SetColor( currentLayer, currentColor );
 m_frame->GetCanvas()->UpdateColors();
 
 KIGFX::VIEW* view = m_frame->GetCanvas()->GetView();
 view->UpdateLayerColor( currentLayer );
 view->UpdateLayerColor( GetNetnameLayer( currentLayer ) );
 
 if( IsCopperLayer( currentLayer ) )
 view->UpdateLayerColor( ZONE_LAYER_FOR( currentLayer ) );
 }
 else
 {
 wxBell();
 }
 
 return 0;
}
 
 
void PCB_CONTROL::DoSetGridOrigin( KIGFX::VIEW* aView, PCB_BASE_FRAME* aFrame,
 EDA_ITEM* originViewItem, const VECTOR2D& aPoint )
{
 aFrame->GetDesignSettings().SetGridOrigin( wxPoint( aPoint ) );
 aView->GetGAL()->SetGridOrigin( aPoint );
 originViewItem->SetPosition( aPoint );
 aView->MarkDirty();
 aFrame->OnModify();
}
 
 
int PCB_CONTROL::GridSetOrigin( const TOOL_EVENT& aEvent )
{
 VECTOR2D* origin = aEvent.Parameter<VECTOR2D*>();
 
 if( origin )
 {
 // We can't undo the other grid dialog settings, so no sense undoing just the origin
 DoSetGridOrigin( getView(), m_frame, m_gridOrigin.get(), *origin );
 delete origin;
 }
 else
 {
 if( m_isFootprintEditor && !getEditFrame<PCB_BASE_EDIT_FRAME>()->GetModel() )
 return 0;
 
 PCB_PICKER_TOOL* picker = m_toolMgr->GetTool<PCB_PICKER_TOOL>();
 
 if( !picker ) // Happens in footprint wizard
 return 0;
 
 // Deactivate other tools; particularly important if another PICKER is currently running
 Activate();
 
 picker->SetClickHandler(
 [this]( const VECTOR2D& pt ) -> bool
 {
 m_frame->SaveCopyInUndoList( m_gridOrigin.get(), UNDO_REDO::GRIDORIGIN );
 DoSetGridOrigin( getView(), m_frame, m_gridOrigin.get(), pt );
 return false; // drill origin is a one-shot; don't continue with tool
 } );
 
 m_toolMgr->RunAction( ACTIONS::pickerTool, true );
 }
 
 return 0;
}
 
 
int PCB_CONTROL::GridResetOrigin( const TOOL_EVENT& aEvent )
{
 m_frame->SaveCopyInUndoList( m_gridOrigin.get(), UNDO_REDO::GRIDORIGIN );
 DoSetGridOrigin( getView(), m_frame, m_gridOrigin.get(), VECTOR2D( 0, 0 ) );
 return 0;
}
 
 
#define HITTEST_THRESHOLD_PIXELS 5
 
 
int PCB_CONTROL::DeleteItemCursor( const TOOL_EVENT& aEvent )
{
 if( m_isFootprintEditor && !m_frame->GetBoard()->GetFirstFootprint() )
 return 0;
 
 PCB_PICKER_TOOL* picker = m_toolMgr->GetTool<PCB_PICKER_TOOL>();
 
 m_pickerItem = nullptr;
 m_toolMgr->RunAction( PCB_ACTIONS::selectionClear, true );
 
 // Deactivate other tools; particularly important if another PICKER is currently running
 Activate();
 
 picker->SetCursor( KICURSOR::REMOVE );
 
 picker->SetClickHandler(
 [this]( const VECTOR2D& aPosition ) -> bool
 {
 if( m_pickerItem )
 {
 if( m_pickerItem && m_pickerItem->IsLocked() )
 {
 m_statusPopup.reset( new STATUS_TEXT_POPUP( m_frame ) );
 m_statusPopup->SetText( _( "Item locked." ) );
 m_statusPopup->PopupFor( 2000 );
 m_statusPopup->Move( wxGetMousePosition() + wxPoint( 20, 20 ) );
 return true;
 }
 
 PCB_SELECTION_TOOL* selectionTool = m_toolMgr->GetTool<PCB_SELECTION_TOOL>();
 selectionTool->UnbrightenItem( m_pickerItem );
 
 PCB_SELECTION items;
 items.Add( m_pickerItem );
 
 EDIT_TOOL* editTool = m_toolMgr->GetTool<EDIT_TOOL>();
 editTool->DeleteItems( items, false );
 
 m_pickerItem = nullptr;
 }
 
 return true;
 } );
 
 picker->SetMotionHandler(
 [this]( const VECTOR2D& aPos )
 {
 BOARD* board = m_frame->GetBoard();
 PCB_SELECTION_TOOL* selectionTool = m_toolMgr->GetTool<PCB_SELECTION_TOOL>();
 GENERAL_COLLECTORS_GUIDE guide = m_frame->GetCollectorsGuide();
 GENERAL_COLLECTOR collector;
 collector.m_Threshold = KiROUND( getView()->ToWorld( HITTEST_THRESHOLD_PIXELS ) );
 
 if( m_isFootprintEditor )
 collector.Collect( board, GENERAL_COLLECTOR::FootprintItems, aPos, guide );
 else
 collector.Collect( board, GENERAL_COLLECTOR::BoardLevelItems, aPos, guide );
 
 // Remove unselectable items
 for( int i = collector.GetCount() - 1; i >= 0; --i )
 {
 if( !selectionTool->Selectable( collector[ i ] ) )
 collector.Remove( i );
 }
 
 if( collector.GetCount() > 1 )
 selectionTool->GuessSelectionCandidates( collector, aPos );
 
 BOARD_ITEM* item = collector.GetCount() == 1 ? collector[ 0 ] : nullptr;
 
 if( m_pickerItem != item )
 {
 if( m_pickerItem )
 selectionTool->UnbrightenItem( m_pickerItem );
 
 m_pickerItem = item;
 
 if( m_pickerItem )
 selectionTool->BrightenItem( m_pickerItem );
 }
 } );
 
 picker->SetFinalizeHandler(
 [this]( const int& aFinalState )
 {
 if( m_pickerItem )
 m_toolMgr->GetTool<PCB_SELECTION_TOOL>()->UnbrightenItem( m_pickerItem );
 
 m_statusPopup.reset();
 
 // Ensure the cursor gets changed&updated
 m_frame->GetCanvas()->SetCurrentCursor( KICURSOR::ARROW );
 m_frame->GetCanvas()->Refresh();
 } );
 
 m_toolMgr->RunAction( ACTIONS::pickerTool, true );
 
 return 0;
}
 
 
static void pasteFootprintItemsToFootprintEditor( FOOTPRINT* aClipFootprint, BOARD* aBoard,
 std::vector<BOARD_ITEM*>& aPastedItems )
{
 FOOTPRINT* editorFootprint = aBoard->GetFirstFootprint();
 
 aClipFootprint->SetParent( aBoard );
 
 for( PAD* pad : aClipFootprint->Pads() )
 {
 pad->SetParent( editorFootprint );
 aPastedItems.push_back( pad );
 }
 
 aClipFootprint->Pads().clear();
 
 // Not all graphic items can be added to the current footprint:
 // Reference and value are already existing in the current footprint, and
 // must be unique.
 // So they will be skipped
 for( BOARD_ITEM* item : aClipFootprint->GraphicalItems() )
 {
 if( item->Type() == PCB_FP_SHAPE_T || item->Type() == PCB_FP_TEXTBOX_T )
 {
 FP_SHAPE* shape = static_cast<FP_SHAPE*>( item );
 
 shape->SetParent( nullptr );
 shape->SetLocalCoord();
 }
 else if( item->Type() == PCB_FP_TEXT_T )
 {
 FP_TEXT* text = static_cast<FP_TEXT*>( item );
 
 if( text->GetType() != FP_TEXT::TEXT_is_DIVERS )
 continue;
 
 text->SetTextAngle( text->GetTextAngle() + aClipFootprint->GetOrientation() );
 
 text->SetParent( nullptr );
 text->SetLocalCoord();
 }
 
 item->SetParent( editorFootprint );
 aPastedItems.push_back( item );
 }
 
 aClipFootprint->GraphicalItems().clear();
 
 for( FP_ZONE* zone : aClipFootprint->Zones() )
 {
 zone->SetParent( editorFootprint );
 aPastedItems.push_back( zone );
 }
 
 aClipFootprint->Zones().clear();
 
 for( PCB_GROUP* group : aClipFootprint->Groups() )
 {
 group->SetParent( editorFootprint );
 aPastedItems.push_back( group );
 }
 
 aClipFootprint->Groups().clear();
}
 
 
void PCB_CONTROL::pruneItemLayers( std::vector<BOARD_ITEM*>& aItems )
{
 LSET enabledLayers = board()->GetEnabledLayers();
 std::vector<BOARD_ITEM*> returnItems;
 bool fpItemDeleted = false;
 
 auto processFPItem =
 [&]( FOOTPRINT* aFootprint, BOARD_ITEM* aItem )
 {
 LSET allowed = aItem->GetLayerSet() & enabledLayers;
 
 if( allowed.any() )
 {
 // Don't prune internal copper layers on items with holes
 if( aItem->HasHole() && aItem->IsOnCopperLayer() )
 allowed |= LSET::InternalCuMask();
 
 aItem->SetLayerSet( allowed );
 }
 else
 {
 aFootprint->Remove( aItem );
 fpItemDeleted = true;
 }
 };
 
 for( BOARD_ITEM* item : aItems )
 {
 if( item->Type() == PCB_FOOTPRINT_T )
 {
 FOOTPRINT* fp = static_cast<FOOTPRINT*>( item );
 
 if( !enabledLayers.test( fp->Reference().GetLayer() ) )
 fp->Reference().SetLayer( fp->IsFlipped() ? B_SilkS : F_SilkS );
 
 if( !enabledLayers.test( fp->Value().GetLayer() ) )
 fp->Value().SetLayer( fp->IsFlipped() ? B_Fab : F_Fab );
 
 // NOTE: all traversals from the back as processFPItem() might delete the item
 
 for( int ii = static_cast<int>( fp->Pads().size() ) - 1; ii >= 0; ii-- )
 processFPItem( fp, fp->Pads()[ii] );
 
 for( int ii = static_cast<int>( fp->Zones().size() ) - 1; ii >= 0; ii-- )
 processFPItem( fp, fp->Zones()[ii] );
 
 for( int ii = static_cast<int>( fp->GraphicalItems().size() ) - 1; ii >= 0; ii-- )
 processFPItem( fp, fp->GraphicalItems()[ii] );
 
 if( fp->GraphicalItems().size() || fp->Pads().size() || fp->Zones().size() )
 returnItems.push_back( fp );
 }
 else if( item->Type() == PCB_GROUP_T )
 {
 returnItems.push_back( item );
 }
 else
 {
 LSET allowed = item->GetLayerSet() & enabledLayers;
 
 if( allowed.any() )
 {
 item->SetLayerSet( allowed );
 returnItems.push_back( item );
 }
 }
 }
 
 if( ( returnItems.size() < aItems.size() ) || fpItemDeleted )
 {
 DisplayError( m_frame, _( "Warning: some pasted items were on layers which are not "
 "present in the current board.\n"
 "These items could not be pasted.\n" ) );
 }
 
 aItems = returnItems;
}
 
 
int PCB_CONTROL::Paste( const TOOL_EVENT& aEvent )
{
 CLIPBOARD_IO pi;
 BOARD_ITEM* clipItem = pi.Parse();
 
 if( !clipItem )
 return 0;
 
 // The viewer frames cannot paste
 if( !frame()->IsType( FRAME_FOOTPRINT_EDITOR ) && !frame()->IsType( FRAME_PCB_EDITOR ) )
 return 0;
 
 PASTE_MODE mode = PASTE_MODE::KEEP_ANNOTATIONS;
 const wxString defaultRef = wxT( "REF**" );
 
 if( aEvent.IsAction( &ACTIONS::pasteSpecial ) )
 {
 DIALOG_PASTE_SPECIAL dlg( m_frame, &mode, defaultRef );
 
 if( dlg.ShowModal() == wxID_CANCEL )
 return 0;
 }
 
 bool isFootprintEditor = m_isFootprintEditor || frame()->IsType( FRAME_FOOTPRINT_EDITOR );
 
 if( clipItem->Type() == PCB_T )
 {
 if( isFootprintEditor )
 {
 for( BOARD_CONNECTED_ITEM* item : static_cast<BOARD*>( clipItem )->AllConnectedItems() )
 item->SetNet( NETINFO_LIST::OrphanedItem() );
 }
 else
 {
 static_cast<BOARD*>( clipItem )->MapNets( m_frame->GetBoard() );
 }
 }
 
 // The clipboard can contain two different things, an entire kicad_pcb or a single footprint
 if( isFootprintEditor && ( !board() || !footprint() ) )
 {
 return 0;
 }
 
 switch( clipItem->Type() )
 {
 case PCB_T:
 {
 BOARD* clipBoard = static_cast<BOARD*>( clipItem );
 
 if( isFootprintEditor )
 {
 FOOTPRINT* editorFootprint = board()->GetFirstFootprint();
 std::vector<BOARD_ITEM*> pastedItems;
 
 for( PCB_GROUP* group : clipBoard->Groups() )
 {
 group->SetParent( editorFootprint );
 pastedItems.push_back( group );
 }
 
 clipBoard->Groups().clear();
 
 for( FOOTPRINT* clipFootprint : clipBoard->Footprints() )
 pasteFootprintItemsToFootprintEditor( clipFootprint, board(), pastedItems );
 
 for( BOARD_ITEM* clipDrawItem : clipBoard->Drawings() )
 {
 if( clipDrawItem->Type() == PCB_SHAPE_T )
 {
 PCB_SHAPE* clipShape = static_cast<PCB_SHAPE*>( clipDrawItem );
 PCB_GROUP* parentGroup = clipDrawItem->GetParentGroup();
 
 if( parentGroup )
 parentGroup->RemoveItem( clipDrawItem );
 
 // Convert to PCB_FP_SHAPE_T
 FP_SHAPE* pastedShape = new FP_SHAPE( editorFootprint );
 static_cast<PCB_SHAPE*>( pastedShape )->SwapItemData( clipShape );
 pastedShape->SetLocalCoord();
 
 if( parentGroup )
 parentGroup->AddItem( pastedShape );
 
 pastedItems.push_back( pastedShape );
 }
 else if( clipDrawItem->Type() == PCB_TEXT_T )
 {
 PCB_TEXT* clipTextItem = static_cast<PCB_TEXT*>( clipDrawItem );
 PCB_GROUP* parentGroup = clipDrawItem->GetParentGroup();
 
 if( parentGroup )
 parentGroup->RemoveItem( clipDrawItem );
 
 // Convert to PCB_FP_TEXT_T
 FP_TEXT* pastedTextItem = new FP_TEXT( editorFootprint );
 static_cast<EDA_TEXT*>( pastedTextItem )->SwapText( *clipTextItem );
 static_cast<EDA_TEXT*>( pastedTextItem )->SwapAttributes( *clipTextItem );
 
 if( parentGroup )
 parentGroup->AddItem( pastedTextItem );
 
 pastedItems.push_back( pastedTextItem );
 }
 else if( clipDrawItem->Type() == PCB_TEXTBOX_T )
 {
 PCB_TEXTBOX* clipTextBox = static_cast<PCB_TEXTBOX*>( clipDrawItem );
 PCB_GROUP* parentGroup = clipDrawItem->GetParentGroup();
 
 if( parentGroup )
 parentGroup->RemoveItem( clipDrawItem );
 
 // Convert to PCB_FP_TEXTBOX_T
 FP_TEXTBOX* pastedTextBox = new FP_TEXTBOX( editorFootprint );
 
 // Handle shape data
 static_cast<PCB_SHAPE*>( pastedTextBox )->SwapItemData( clipTextBox );
 pastedTextBox->SetLocalCoord();
 
 // Handle text data
 static_cast<EDA_TEXT*>( pastedTextBox )->SwapText( *clipTextBox );
 static_cast<EDA_TEXT*>( pastedTextBox )->SwapAttributes( *clipTextBox );
 
 if( parentGroup )
 parentGroup->AddItem( pastedTextBox );
 
 pastedItems.push_back( pastedTextBox );
 }
 }
 
 delete clipBoard;
 
 pruneItemLayers( pastedItems );
 
 placeBoardItems( pastedItems, true, true, mode == PASTE_MODE::UNIQUE_ANNOTATIONS );
 }
 else
 {
 if( mode == PASTE_MODE::REMOVE_ANNOTATIONS )
 {
 for( FOOTPRINT* clipFootprint : clipBoard->Footprints() )
 clipFootprint->SetReference( defaultRef );
 }
 
 placeBoardItems( clipBoard, true, mode == PASTE_MODE::UNIQUE_ANNOTATIONS );
 }
 
 break;
 }
 
 case PCB_FOOTPRINT_T:
 {
 FOOTPRINT* clipFootprint = static_cast<FOOTPRINT*>( clipItem );
 std::vector<BOARD_ITEM*> pastedItems;
 
 if( isFootprintEditor )
 {
 pasteFootprintItemsToFootprintEditor( clipFootprint, board(), pastedItems );
 delete clipFootprint;
 }
 else
 {
 if( mode == PASTE_MODE::REMOVE_ANNOTATIONS )
 clipFootprint->SetReference( defaultRef );
 
 clipFootprint->SetParent( board() );
 pastedItems.push_back( clipFootprint );
 }
 
 pruneItemLayers( pastedItems );
 
 placeBoardItems( pastedItems, true, true, mode == PASTE_MODE::UNIQUE_ANNOTATIONS );
 break;
 }
 
 default:
 m_frame->DisplayToolMsg( _( "Invalid clipboard contents" ) );
 break;
 }
 
 return 1;
}
 
 
int PCB_CONTROL::AppendBoardFromFile( const TOOL_EVENT& aEvent )
{
 int open_ctl;
 wxString fileName;
 
 PCB_EDIT_FRAME* editFrame = dynamic_cast<PCB_EDIT_FRAME*>( m_frame );
 
 if( !editFrame )
 return 1;
 
 // Pick a file to append
 if( !AskLoadBoardFileName( editFrame, &open_ctl, &fileName, true ) )
 return 1;
 
 IO_MGR::PCB_FILE_T pluginType = plugin_type( fileName, open_ctl );
 PLUGIN::RELEASER pi( IO_MGR::PluginFind( pluginType ) );
 
 return AppendBoard( *pi, fileName );
}
 
 
// Helper function for PCB_CONTROL::placeBoardItems()
template<typename T>
static void moveUnflaggedItems( std::deque<T>& aList, std::vector<BOARD_ITEM*>& aTarget,
 bool aIsNew )
{
 std::copy_if( aList.begin(), aList.end(), std::back_inserter( aTarget ),
 [aIsNew]( T aItem )
 {
 bool doCopy = ( aItem->GetFlags() & SKIP_STRUCT ) == 0;
 
 aItem->ClearFlags( SKIP_STRUCT );
 aItem->SetFlags( aIsNew ? IS_NEW : 0 );
 
 return doCopy;
 } );
 
 if( aIsNew )
 aList.clear();
}
 
 
static void moveUnflaggedItems( ZONES& aList, std::vector<BOARD_ITEM*>& aTarget, bool aIsNew )
{
 if( aList.size() == 0 )
 return;
 
 auto obj = aList.front();
 int idx = 0;
 
 if( aIsNew )
 {
 obj = aList.back();
 aList.pop_back();
 }
 
 for( ; obj ; )
 {
 if( obj->HasFlag( SKIP_STRUCT ) )
 obj->ClearFlags( SKIP_STRUCT );
 else
 aTarget.push_back( obj );
 
 if( aIsNew )
 {
 if( aList.size() )
 {
 obj = aList.back();
 aList.pop_back();
 }
 else
 {
 obj = nullptr;
 }
 }
 else
 {
 obj = idx < int(aList.size()-1) ? aList[++idx] : nullptr;
 }
 }
}
 
 
 
int PCB_CONTROL::placeBoardItems( BOARD* aBoard, bool aAnchorAtOrigin, bool aReannotateDuplicates )
{
 // items are new if the current board is not the board source
 bool isNew = board() != aBoard;
 std::vector<BOARD_ITEM*> items;
 
 moveUnflaggedItems( aBoard->Tracks(), items, isNew );
 moveUnflaggedItems( aBoard->Footprints(), items, isNew );
 moveUnflaggedItems( aBoard->Drawings(), items, isNew );
 moveUnflaggedItems( aBoard->Zones(), items, isNew );
 
 // Subtlety: When selecting a group via the mouse,
 // PCB_SELECTION_TOOL::highlightInternal runs, which does a SetSelected() on all
 // descendants. In PCB_CONTROL::placeBoardItems, below, we skip that and
 // mark items non-recursively. That works because the saving of the
 // selection created aBoard that has the group and all descendants in it.
 moveUnflaggedItems( aBoard->Groups(), items, isNew );
 
 pruneItemLayers( items );
 
 return placeBoardItems( items, isNew, aAnchorAtOrigin, aReannotateDuplicates );
}
 
 
int PCB_CONTROL::placeBoardItems( std::vector<BOARD_ITEM*>& aItems, bool aIsNew,
 bool aAnchorAtOrigin, bool aReannotateDuplicates )
{
 m_toolMgr->RunAction( PCB_ACTIONS::selectionClear, true );
 
 PCB_SELECTION_TOOL* selectionTool = m_toolMgr->GetTool<PCB_SELECTION_TOOL>();
 EDIT_TOOL* editTool = m_toolMgr->GetTool<EDIT_TOOL>();
 
 std::vector<BOARD_ITEM*> itemsToSel;
 itemsToSel.reserve( aItems.size() );
 
 auto updateDimensionUnits =
 [this]( PCB_DIMENSION_BASE* dimension )
 {
 // Dimensions need to have their units updated if they are automatic
 if( dimension->GetUnitsMode() == DIM_UNITS_MODE::AUTOMATIC )
 dimension->SetUnits( frame()->GetUserUnits() );
 };
 
 for( BOARD_ITEM* item : aItems )
 {
 if( aIsNew )
 {
 const_cast<KIID&>( item->m_Uuid ) = KIID();
 
 // Even though BOARD_COMMIT::Push() will add any new items to the group, we're
 // going to run PCB_ACTIONS::move first, and the move tool will throw out any
 // items that aren't in the entered group.
 if( selectionTool->GetEnteredGroup() && !item->GetParentGroup() )
 selectionTool->GetEnteredGroup()->AddItem( item );
 }
 
 // Update item attributes if needed
 if( BaseType( item->Type() ) == PCB_DIMENSION_T )
 {
 updateDimensionUnits( static_cast<PCB_DIMENSION_BASE*>( item ) );
 }
 else if( item->Type() == PCB_FOOTPRINT_T )
 {
 FOOTPRINT* footprint = static_cast<FOOTPRINT*>( item );
 
 // Update the footprint path with the new KIID path if the footprint is new
 if( aIsNew )
 footprint->SetPath( KIID_PATH() );
 
 for( BOARD_ITEM* dwg : footprint->GraphicalItems() )
 {
 if( BaseType( dwg->Type() ) == PCB_DIMENSION_T )
 updateDimensionUnits( static_cast<PCB_DIMENSION_BASE*>( dwg ) );
 }
 }
 
 // We only need to add the items that aren't inside a group currently selected
 // to the selection. If an item is inside a group and that group is selected,
 // then the selection tool will select it for us.
 if( !item->GetParentGroup() || !alg::contains( aItems, item->GetParentGroup() ) )
 itemsToSel.push_back( item );
 }
 
 // Select the items that should be selected
 m_toolMgr->RunAction( PCB_ACTIONS::selectItems, true, &itemsToSel );
 
 // Reannotate duplicate footprints (make sense only in board editor )
 if( aReannotateDuplicates && m_isBoardEditor )
 m_toolMgr->GetTool<BOARD_REANNOTATE_TOOL>()->ReannotateDuplicatesInSelection();
 
 for( BOARD_ITEM* item : aItems )
 {
 // Commit after reannotation
 if( aIsNew )
 editTool->GetCurrentCommit()->Add( item );
 else
 editTool->GetCurrentCommit()->Added( item );
 }
 
 PCB_SELECTION& selection = selectionTool->GetSelection();
 
 if( selection.Size() > 0 )
 {
 if( aAnchorAtOrigin )
 {
 selection.SetReferencePoint( VECTOR2I( 0, 0 ) );
 }
 else
 {
 BOARD_ITEM* item = static_cast<BOARD_ITEM*>( selection.GetTopLeftItem() );
 selection.SetReferencePoint( item->GetPosition() );
 }
 
 getViewControls()->SetCursorPosition( getViewControls()->GetMousePosition(), false );
 
 m_toolMgr->ProcessEvent( EVENTS::SelectedEvent );
 m_toolMgr->RunAction( PCB_ACTIONS::move, true );
 }
 
 return 0;
}
 
 
int PCB_CONTROL::AppendBoard( PLUGIN& pi, wxString& fileName )
{
 PCB_EDIT_FRAME* editFrame = dynamic_cast<PCB_EDIT_FRAME*>( m_frame );
 
 if( !editFrame )
 return 1;
 
 BOARD* brd = board();
 
 if( !brd )
 return 1;
 
 // Mark existing items, in order to know what are the new items so we can select only
 // the new items after loading
 for( PCB_TRACK* track : brd->Tracks() )
 track->SetFlags( SKIP_STRUCT );
 
 for( FOOTPRINT* footprint : brd->Footprints() )
 footprint->SetFlags( SKIP_STRUCT );
 
 for( PCB_GROUP* group : brd->Groups() )
 group->SetFlags( SKIP_STRUCT );
 
 for( BOARD_ITEM* drawing : brd->Drawings() )
 drawing->SetFlags( SKIP_STRUCT );
 
 for( ZONE* zone : brd->Zones() )
 zone->SetFlags( SKIP_STRUCT );
 
 std::map<wxString, wxString> oldProperties = brd->GetProperties();
 std::map<wxString, wxString> newProperties;
 
 PAGE_INFO oldPageInfo = brd->GetPageSettings();
 TITLE_BLOCK oldTitleBlock = brd->GetTitleBlock();
 
 // Keep also the count of copper layers, to adjust if necessary
 int initialCopperLayerCount = brd->GetCopperLayerCount();
 LSET initialEnabledLayers = brd->GetEnabledLayers();
 
 // Load the data
 try
 {
 STRING_UTF8_MAP props;
 char xbuf[30];
 char ybuf[30];
 
 // EAGLE_PLUGIN can use this info to center the BOARD, but it does not yet.
 sprintf( xbuf, "%d", editFrame->GetPageSizeIU().x );
 sprintf( ybuf, "%d", editFrame->GetPageSizeIU().y );
 
 props["page_width"] = xbuf;
 props["page_height"] = ybuf;
 
 pi.SetQueryUserCallback(
 [&]( wxString aTitle, int aIcon, wxString aMessage, wxString aAction ) -> bool
 {
 KIDIALOG dlg( editFrame, aMessage, aTitle, wxOK | wxCANCEL | aIcon );
 
 if( !aAction.IsEmpty() )
 dlg.SetOKLabel( aAction );
 
 dlg.DoNotShowCheckbox( aMessage, 0 );
 
 return dlg.ShowModal() == wxID_OK;
 } );
 
 WX_PROGRESS_REPORTER progressReporter( editFrame, _( "Loading PCB" ), 1 );
 
 editFrame->GetDesignSettings().m_NetSettings->m_NetClasses.clear();
 pi.Load( fileName, brd, &props, nullptr, &progressReporter );
 }
 catch( const IO_ERROR& ioe )
 {
 wxString msg = wxString::Format( _( "Error loading board.\n%s" ), ioe.What() );
 DisplayError( editFrame, msg );
 
 return 0;
 }
 
 newProperties = brd->GetProperties();
 
 for( const std::pair<const wxString, wxString>& prop : oldProperties )
 newProperties[ prop.first ] = prop.second;
 
 brd->SetProperties( newProperties );
 
 brd->SetPageSettings( oldPageInfo );
 brd->SetTitleBlock( oldTitleBlock );
 
 // rebuild nets and ratsnest before any use of nets
 brd->BuildListOfNets();
 brd->SynchronizeNetsAndNetClasses( true );
 brd->BuildConnectivity();
 
 // Synchronize layers
 // we should not ask PLUGINs to do these items:
 int copperLayerCount = brd->GetCopperLayerCount();
 
 if( copperLayerCount > initialCopperLayerCount )
 brd->SetCopperLayerCount( copperLayerCount );
 
 // Enable all used layers, and make them visible:
 LSET enabledLayers = brd->GetEnabledLayers();
 enabledLayers |= initialEnabledLayers;
 brd->SetEnabledLayers( enabledLayers );
 brd->SetVisibleLayers( enabledLayers );
 
 return placeBoardItems( brd, false, false ); // Do not reannotate duplicates on Append Board
}
 
 
int PCB_CONTROL::Undo( const TOOL_EVENT& aEvent )
{
 PCB_BASE_EDIT_FRAME* editFrame = dynamic_cast<PCB_BASE_EDIT_FRAME*>( m_frame );
 wxCommandEvent dummy;
 
 if( editFrame )
 editFrame->RestoreCopyFromUndoList( dummy );
 
 return 0;
}
 
 
int PCB_CONTROL::Redo( const TOOL_EVENT& aEvent )
{
 PCB_BASE_EDIT_FRAME* editFrame = dynamic_cast<PCB_BASE_EDIT_FRAME*>( m_frame );
 wxCommandEvent dummy;
 
 if( editFrame )
 editFrame->RestoreCopyFromRedoList( dummy );
 
 return 0;
}
 
 
int PCB_CONTROL::UpdateMessagePanel( const TOOL_EVENT& aEvent )
{
 PCB_SELECTION_TOOL* selTool = m_toolMgr->GetTool<PCB_SELECTION_TOOL>();
 ROUTER_TOOL* routerTool = m_toolMgr->GetTool<ROUTER_TOOL>();
 PCB_SELECTION& selection = selTool->GetSelection();
 PCB_EDIT_FRAME* pcbFrame = dynamic_cast<PCB_EDIT_FRAME*>( m_frame );
 std::shared_ptr<DRC_ENGINE> drcEngine = m_frame->GetBoard()->GetDesignSettings().m_DRCEngine;
 DRC_CONSTRAINT constraint;
 
 std::vector<MSG_PANEL_ITEM> msgItems;
 
 if( routerTool && routerTool->RoutingInProgress() )
 {
 routerTool->UpdateMessagePanel();
 return 0;
 }
 
 if( !pcbFrame && !m_frame->GetModel() )
 return 0;
 
 if( selection.Empty() )
 {
 if( !pcbFrame )
 {
 FOOTPRINT* fp = static_cast<FOOTPRINT*>( m_frame->GetModel() );
 size_t padCount = fp->GetPadCount( DO_NOT_INCLUDE_NPTH );
 
 msgItems.emplace_back( _( "Library" ), fp->GetFPID().GetLibNickname().wx_str() );
 
 msgItems.emplace_back( _( "Footprint Name" ), fp->GetFPID().GetLibItemName().wx_str() );
 
 msgItems.emplace_back( _( "Pads" ), wxString::Format( wxT( "%zu" ), padCount ) );
 
 msgItems.emplace_back( wxString::Format( _( "Doc: %s" ), fp->GetDescription() ),
 wxString::Format( _( "Keywords: %s" ), fp->GetKeywords() ) );
 }
 else
 {
 m_frame->SetMsgPanel( m_frame->GetBoard() );
 }
 }
 else if( selection.GetSize() == 1 )
 {
 EDA_ITEM* item = selection.Front();
 
 item->GetMsgPanelInfo( m_frame, msgItems );
 }
 else if( pcbFrame && selection.GetSize() == 2 )
 {
 // Pair selection broken into multiple, optional data, starting with the selected item
 // names
 
 BOARD_ITEM* a = static_cast<BOARD_ITEM*>( selection[0] );
 BOARD_ITEM* b = static_cast<BOARD_ITEM*>( selection[1] );
 
 msgItems.emplace_back( MSG_PANEL_ITEM( a->GetSelectMenuText( m_frame ),
 b->GetSelectMenuText( m_frame ) ) );
 
 BOARD_CONNECTED_ITEM* a_conn = dyn_cast<BOARD_CONNECTED_ITEM*>( a );
 BOARD_CONNECTED_ITEM* b_conn = dyn_cast<BOARD_CONNECTED_ITEM*>( b );
 
 if( a_conn && b_conn )
 {
 LSET overlap = a_conn->GetLayerSet() & b_conn->GetLayerSet() & LSET::AllCuMask();
 int a_netcode = a_conn->GetNetCode();
 int b_netcode = b_conn->GetNetCode();
 
 if( overlap.count() > 0
 && ( a_netcode != b_netcode || a_netcode < 0 || b_netcode < 0 ) )
 {
 PCB_LAYER_ID layer = overlap.CuStack().front();
 
 constraint = drcEngine->EvalRules( CLEARANCE_CONSTRAINT, a, b, layer );
 
 std::shared_ptr<SHAPE> a_shape( a_conn->GetEffectiveShape( layer ) );
 std::shared_ptr<SHAPE> b_shape( b_conn->GetEffectiveShape( layer ) );
 
 int actual_clearance = a_shape->GetClearance( b_shape.get() );
 
 msgItems.emplace_back( _( "Resolved clearance" ),
 m_frame->MessageTextFromValue( constraint.m_Value.Min() ) );
 
 if( actual_clearance > -1 && actual_clearance < std::numeric_limits<int>::max() )
 {
 msgItems.emplace_back( _( "Actual clearance" ),
 m_frame->MessageTextFromValue( actual_clearance ) );
 }
 }
 }
 
 if( ( a->HasHole() || b->HasHole() ) )
 {
 PCB_LAYER_ID active = m_frame->GetActiveLayer();
 PCB_LAYER_ID layer = UNDEFINED_LAYER;
 
 if( b->IsOnLayer( active ) && IsCopperLayer( active ) )
 layer = active;
 else if( b->HasHole() && a->IsOnLayer( active ) && IsCopperLayer( active ) )
 layer = active;
 else if( a->HasHole() && b->IsOnCopperLayer() )
 layer = b->GetLayer();
 else if( b->HasHole() && a->IsOnCopperLayer() )
 layer = a->GetLayer();
 
 if( IsCopperLayer( layer ) )
 {
 int actual = std::numeric_limits<int>::max();
 
 if( a->HasHole() && b->IsOnCopperLayer() )
 {
 std::shared_ptr<SHAPE_SEGMENT> hole = a->GetEffectiveHoleShape();
 std::shared_ptr<SHAPE> other( b->GetEffectiveShape( layer ) );
 
 actual = std::min( actual, hole->GetClearance( other.get() ) );
  }
 
 if( b->HasHole() && a->IsOnCopperLayer() )
 {
 std::shared_ptr<SHAPE_SEGMENT> hole = b->GetEffectiveHoleShape();
 std::shared_ptr<SHAPE> other( a->GetEffectiveShape( layer ) );
 
 actual = std::min( actual, hole->GetClearance( other.get() ) );
 }
 
 if( actual < std::numeric_limits<int>::max() )
 {
 constraint = drcEngine->EvalRules( HOLE_CLEARANCE_CONSTRAINT, a, b, layer );
 msgItems.emplace_back( _( "Resolved hole clearance" ),
 m_frame->MessageTextFromValue( constraint.m_Value.Min() ) );
 
 if( actual > -1 && actual < std::numeric_limits<int>::max() )
 {
 msgItems.emplace_back( _( "Actual hole clearance" ),
 m_frame->MessageTextFromValue( actual ) );
 }
 }
 }
 }
 
 for( PCB_LAYER_ID edgeLayer : { Edge_Cuts, Margin } )
 {
 PCB_LAYER_ID active = m_frame->GetActiveLayer();
 PCB_LAYER_ID layer = UNDEFINED_LAYER;
 
 if( a->IsOnLayer( edgeLayer ) && b->Type() != PCB_FOOTPRINT_T )
 {
 if( b->IsOnLayer( active ) && IsCopperLayer( active ) )
 layer = active;
 else if( IsCopperLayer( b->GetLayer() ) )
 layer = b->GetLayer();
 }
 else if( b->IsOnLayer( edgeLayer ) && a->Type() != PCB_FOOTPRINT_T )
 {
 if( a->IsOnLayer( active ) && IsCopperLayer( active ) )
 layer = active;
 else if( IsCopperLayer( a->GetLayer() ) )
 layer = a->GetLayer();
 }
 
 if( layer >= 0 )
 {
 constraint = drcEngine->EvalRules( EDGE_CLEARANCE_CONSTRAINT, a, b, layer );
 
 if( edgeLayer == Edge_Cuts )
 {
 msgItems.emplace_back( _( "Resolved edge clearance" ),
 m_frame->MessageTextFromValue( constraint.m_Value.Min() ) );
 }
 else
 {
 msgItems.emplace_back( _( "Resolved margin clearance" ),
 m_frame->MessageTextFromValue( constraint.m_Value.Min() ) );
 }
 }
 }
 }
 
 if( msgItems.empty() )
 {
 if( selection.GetSize() )
 {
 msgItems.emplace_back( _( "Selected Items" ),
 wxString::Format( wxT( "%d" ), selection.GetSize() ) );
 
 std::set<wxString> netNames;
 std::set<wxString> netClasses;
 
 for( EDA_ITEM* item : selection )
 {
 if( BOARD_CONNECTED_ITEM* bci = dynamic_cast<BOARD_CONNECTED_ITEM*>( item ) )
 {
 netNames.insert( UnescapeString( bci->GetNetname() ) );
 netClasses.insert( UnescapeString( bci->GetEffectiveNetClass()->GetName() ) );
 
 if( netNames.size() > 1 && netClasses.size() > 1 )
 break;
 }
 }
 
 if( netNames.size() == 1 )
 msgItems.emplace_back( _( "Net" ), *netNames.begin() );
 
 if( netClasses.size() == 1 )
 msgItems.emplace_back( _( "Resolved Netclass" ), *netClasses.begin() );
 }
 else
 {
 m_frame->GetBoard()->GetMsgPanelInfo( m_frame, msgItems );
 }
 }
 
 m_frame->SetMsgPanel( msgItems );
 
 return 0;
}
 
 
int PCB_CONTROL::DdAppendBoard( const TOOL_EVENT& aEvent )
{
 wxFileName fileName = wxFileName( *aEvent.Parameter<wxString*>() );
 
 int open_ctl = fileName.GetExt() == KiCadPcbFileExtension ? 0 : KICTL_EAGLE_BRD;
 
 PCB_EDIT_FRAME* editFrame = dynamic_cast<PCB_EDIT_FRAME*>( m_frame );
 
 if( !editFrame )
 return 1;
 
 wxString filePath = fileName.GetFullPath();
 IO_MGR::PCB_FILE_T pluginType = plugin_type( filePath, open_ctl );
 PLUGIN::RELEASER pi( IO_MGR::PluginFind( pluginType ) );
 
 return AppendBoard( *pi, filePath );
}
 
 
int PCB_CONTROL::FlipPcbView( const TOOL_EVENT& aEvent )
{
 view()->SetMirror( !view()->IsMirroredX(), false );
 view()->RecacheAllItems();
 frame()->GetCanvas()->ForceRefresh();
 frame()->OnDisplayOptionsChanged();
 return 0;
}
 
 
void PCB_CONTROL::setTransitions()
{
 Go( &PCB_CONTROL::AddLibrary, ACTIONS::newLibrary.MakeEvent() );
 Go( &PCB_CONTROL::AddLibrary, ACTIONS::addLibrary.MakeEvent() );
 Go( &PCB_CONTROL::Print, ACTIONS::print.MakeEvent() );
 Go( &PCB_CONTROL::Quit, ACTIONS::quit.MakeEvent() );
 
 // Display modes
 Go( &PCB_CONTROL::TrackDisplayMode, PCB_ACTIONS::trackDisplayMode.MakeEvent() );
 Go( &PCB_CONTROL::ToggleRatsnest, PCB_ACTIONS::showRatsnest.MakeEvent() );
 Go( &PCB_CONTROL::ToggleRatsnest, PCB_ACTIONS::ratsnestLineMode.MakeEvent() );
 Go( &PCB_CONTROL::ViaDisplayMode, PCB_ACTIONS::viaDisplayMode.MakeEvent() );
 Go( &PCB_CONTROL::ZoneDisplayMode, PCB_ACTIONS::zoneDisplayFilled.MakeEvent() );
 Go( &PCB_CONTROL::ZoneDisplayMode, PCB_ACTIONS::zoneDisplayOutline.MakeEvent() );
 Go( &PCB_CONTROL::ZoneDisplayMode, PCB_ACTIONS::zoneDisplayFractured.MakeEvent() );
 Go( &PCB_CONTROL::ZoneDisplayMode, PCB_ACTIONS::zoneDisplayTriangulated.MakeEvent() );
 Go( &PCB_CONTROL::ZoneDisplayMode, PCB_ACTIONS::zoneDisplayToggle.MakeEvent() );
 Go( &PCB_CONTROL::HighContrastMode, ACTIONS::highContrastMode.MakeEvent() );
 Go( &PCB_CONTROL::HighContrastModeCycle, ACTIONS::highContrastModeCycle.MakeEvent() );
 Go( &PCB_CONTROL::NetColorModeCycle, PCB_ACTIONS::netColorModeCycle.MakeEvent() );
 Go( &PCB_CONTROL::RatsnestModeCycle, PCB_ACTIONS::ratsnestModeCycle.MakeEvent() );
 Go( &PCB_CONTROL::FlipPcbView, PCB_ACTIONS::flipBoard.MakeEvent() );
 
 // Layer control
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerTop.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner1.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner2.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner3.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner4.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner5.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner6.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner7.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner8.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner9.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner10.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner11.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner12.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner13.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner14.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner15.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner16.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner17.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner18.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner19.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner20.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner21.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner22.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner23.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner24.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner25.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner26.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner27.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner28.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner29.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerInner30.MakeEvent() );
 Go( &PCB_CONTROL::LayerSwitch, PCB_ACTIONS::layerBottom.MakeEvent() );
 Go( &PCB_CONTROL::LayerNext, PCB_ACTIONS::layerNext.MakeEvent() );
 Go( &PCB_CONTROL::LayerPrev, PCB_ACTIONS::layerPrev.MakeEvent() );
 Go( &PCB_CONTROL::LayerToggle, PCB_ACTIONS::layerToggle.MakeEvent() );
 Go( &PCB_CONTROL::LayerAlphaInc, PCB_ACTIONS::layerAlphaInc.MakeEvent() );
 Go( &PCB_CONTROL::LayerAlphaDec, PCB_ACTIONS::layerAlphaDec.MakeEvent() );
 
 // Grid control
 Go( &PCB_CONTROL::GridSetOrigin, ACTIONS::gridSetOrigin.MakeEvent() );
 Go( &PCB_CONTROL::GridResetOrigin, ACTIONS::gridResetOrigin.MakeEvent() );
 
 Go( &PCB_CONTROL::Undo, ACTIONS::undo.MakeEvent() );
 Go( &PCB_CONTROL::Redo, ACTIONS::redo.MakeEvent() );
 
 // Miscellaneous
 Go( &PCB_CONTROL::DeleteItemCursor, ACTIONS::deleteTool.MakeEvent() );
 
 // Append control
 Go( &PCB_CONTROL::AppendBoardFromFile, PCB_ACTIONS::appendBoard.MakeEvent() );
 Go( &PCB_CONTROL::DdAppendBoard, PCB_ACTIONS::ddAppendBoard.MakeEvent() );
 
 Go( &PCB_CONTROL::Paste, ACTIONS::paste.MakeEvent() );
 Go( &PCB_CONTROL::Paste, ACTIONS::pasteSpecial.MakeEvent() );
 
 Go( &PCB_CONTROL::UpdateMessagePanel, EVENTS::PointSelectedEvent );
 Go( &PCB_CONTROL::UpdateMessagePanel, EVENTS::SelectedEvent );
 Go( &PCB_CONTROL::UpdateMessagePanel, EVENTS::UnselectedEvent );
 Go( &PCB_CONTROL::UpdateMessagePanel, EVENTS::ClearedEvent );
 Go( &PCB_CONTROL::UpdateMessagePanel, EVENTS::SelectedItemsModified );
 Go( &PCB_CONTROL::UpdateMessagePanel, EVENTS::ConnectivityChangedEvent );
 
 // Add library by dropping file
 Go( &PCB_CONTROL::DdAddLibrary, ACTIONS::ddAddLibrary.MakeEvent() );
 Go( &PCB_CONTROL::DdImportFootprint, PCB_ACTIONS::ddImportFootprint.MakeEvent() );
}