pcb_base_frame.cpp

Go to the documentation of this file.

/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2018 Jean-Pierre Charras, [email protected]
 * Copyright (C) 2012 SoftPLC Corporation, Dick Hollenbeck <[email protected]>
 * Copyright (C) 2011 Wayne Stambaugh <[email protected]>
 * Copyright (C) 1992-2023 KiCad Developers, see AUTHORS.txt for contributors.
 * Copyright (C) 2022 CERN
 *
 * 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 <boost/version.hpp>
 
#if BOOST_VERSION >= 106700
#include <boost/uuid/entropy_error.hpp>
#endif
 
#include <3d_viewer/eda_3d_viewer_frame.h> // To include VIEWER3D_FRAMENAME
#include <advanced_config.h>
#include <base_units.h>
#include <board.h>
#include <cleanup_item.h>
#include <collectors.h>
#include <confirm.h>
#include <footprint.h>
#include <footprint_editor_settings.h>
#include <fp_lib_table.h>
#include <kiface_base.h>
#include <pcb_painter.h>
#include <pcbnew_id.h>
#include <pcbnew_settings.h>
#include <pcb_base_frame.h>
#include <pcb_draw_panel_gal.h>
#include <pgm_base.h>
#include <project_pcb.h>
#include <wildcards_and_files_ext.h>
#include <zoom_defines.h>
 
#include <math/vector2d.h>
#include <math/vector2wx.h>
#include <widgets/msgpanel.h>
#include <wx/fswatcher.h>
 
#include <settings/settings_manager.h>
#include <settings/cvpcb_settings.h>
#include <tool/tool_manager.h>
#include <tool/tool_dispatcher.h>
#include <tools/pcb_actions.h>
#include <tool/grid_menu.h>
#include <ratsnest/ratsnest_view_item.h>
 
#include <navlib/nl_pcbnew_plugin.h>
 
using KIGFX::RENDER_SETTINGS;
using KIGFX::PCB_RENDER_SETTINGS;
 
wxDEFINE_EVENT( EDA_EVT_BOARD_CHANGED, wxCommandEvent );
 
PCB_BASE_FRAME::PCB_BASE_FRAME( KIWAY* aKiway, wxWindow* aParent, FRAME_T aFrameType,
 const wxString& aTitle, const wxPoint& aPos, const wxSize& aSize,
 long aStyle, const wxString& aFrameName ) :
 EDA_DRAW_FRAME( aKiway, aParent, aFrameType, aTitle, aPos, aSize, aStyle, aFrameName,
 pcbIUScale ),
 m_pcb( nullptr ),
 m_originTransforms( *this ),
 m_spaceMouse( nullptr )
{
 m_watcherDebounceTimer.Bind( wxEVT_TIMER, &PCB_BASE_FRAME::OnFpChangeDebounceTimer, this );
}
 
 
PCB_BASE_FRAME::~PCB_BASE_FRAME()
{
 delete m_spaceMouse;
 m_spaceMouse = nullptr;
 
 // Ensure m_canvasType is up to date, to save it in config
 if( GetCanvas() )
 m_canvasType = GetCanvas()->GetBackend();
 
 delete m_pcb;
 m_pcb = nullptr;
}
 
 
bool PCB_BASE_FRAME::canCloseWindow( wxCloseEvent& aEvent )
{
 // Close modeless dialogs. They're trouble when they get destroyed after the frame and/or
 // board.
 wxWindow* viewer3D = Get3DViewerFrame();
 
 if( viewer3D )
 viewer3D->Close( true );
 
 // Similarly, wxConvBrokenFileNames uses some statically allocated variables that make it
 // crash when run later from a d'tor.
 PROJECT_PCB::Cleanup3DCache( &Prj() );
 
 return true;
}
 
 
void PCB_BASE_FRAME::handleActivateEvent( wxActivateEvent& aEvent )
{
 EDA_DRAW_FRAME::handleActivateEvent( aEvent );
 
 if( m_spaceMouse )
 m_spaceMouse->SetFocus( aEvent.GetActive() );
}
 
 
void PCB_BASE_FRAME::handleIconizeEvent( wxIconizeEvent& aEvent )
{
 EDA_DRAW_FRAME::handleIconizeEvent( aEvent );
 
 if( m_spaceMouse != nullptr && aEvent.IsIconized() )
 m_spaceMouse->SetFocus( false );
}
 
 
EDA_3D_VIEWER_FRAME* PCB_BASE_FRAME::Get3DViewerFrame()
{
 wxWindow* frame = FindWindowByName( QUALIFIED_VIEWER3D_FRAMENAME( this ) );
 return dynamic_cast<EDA_3D_VIEWER_FRAME*>( frame );
}
 
 
void PCB_BASE_FRAME::Update3DView( bool aMarkDirty, bool aRefresh, const wxString* aTitle )
{
 EDA_3D_VIEWER_FRAME* draw3DFrame = Get3DViewerFrame();
 
 if( draw3DFrame )
 {
 if( aTitle )
 draw3DFrame->SetTitle( *aTitle );
 
 if( aMarkDirty )
 draw3DFrame->ReloadRequest();
 
 if( aRefresh )
 draw3DFrame->Redraw();
 }
}
 
 
void PCB_BASE_FRAME::SetBoard( BOARD* aBoard, PROGRESS_REPORTER* aReporter )
{
 if( m_pcb != aBoard )
 {
 delete m_pcb;
 m_pcb = aBoard;
 
 if( GetBoard() )
 GetBoard()->SetUserUnits( GetUserUnits() );
 
 if( GetBoard() && GetCanvas() )
 {
 RENDER_SETTINGS* rs = GetCanvas()->GetView()->GetPainter()->GetSettings();
 
 if( rs )
 {
 rs->SetDashLengthRatio( GetBoard()->GetPlotOptions().GetDashedLineDashRatio() );
 rs->SetGapLengthRatio( GetBoard()->GetPlotOptions().GetDashedLineGapRatio() );
 }
 }
 
 wxCommandEvent e( EDA_EVT_BOARD_CHANGED );
 ProcessEventLocally( e );
 
 for( wxEvtHandler* listener : m_boardChangeListeners )
 {
 wxCHECK2( listener, continue );
 
 // Use the windows variant when handling event messages in case there is any special
 // event handler pre and/or post processing specific to windows.
 wxWindow* win = dynamic_cast<wxWindow*>( listener );
 
 if( win )
 win->HandleWindowEvent( e );
 else
 listener->SafelyProcessEvent( e );
 }
 }
}
 
 
void PCB_BASE_FRAME::AddBoardChangeListener( wxEvtHandler* aListener )
{
 auto it = std::find( m_boardChangeListeners.begin(), m_boardChangeListeners.end(), aListener );
 
 // Don't add duplicate listeners.
 if( it == m_boardChangeListeners.end() )
 m_boardChangeListeners.push_back( aListener );
}
 
 
void PCB_BASE_FRAME::RemoveBoardChangeListener( wxEvtHandler* aListener )
{
 auto it = std::find( m_boardChangeListeners.begin(), m_boardChangeListeners.end(), aListener );
 
 // Don't add duplicate listeners.
 if( it != m_boardChangeListeners.end() )
 m_boardChangeListeners.erase( it );
}
 
 
void PCB_BASE_FRAME::AddFootprintToBoard( FOOTPRINT* aFootprint )
{
 if( aFootprint )
 {
 GetBoard()->Add( aFootprint, ADD_MODE::APPEND );
 
 aFootprint->SetFlags( IS_NEW );
 aFootprint->SetPosition( VECTOR2I( 0, 0 ) ); // cursor in GAL may not be initialized yet
 
 // Put it on FRONT layer (note that it might be stored flipped if the lib is an archive
 // built from a board)
 if( aFootprint->IsFlipped() )
 aFootprint->Flip( aFootprint->GetPosition(), GetPcbNewSettings()->m_FlipLeftRight );
 
 // Place it in orientation 0 even if it is not saved with orientation 0 in lib (note that
 // it might be stored in another orientation if the lib is an archive built from a board)
 aFootprint->SetOrientation( ANGLE_0 );
 
 GetBoard()->UpdateUserUnits( aFootprint, GetCanvas()->GetView() );
 }
}
 
 
EDA_ITEM* PCB_BASE_FRAME::GetItem( const KIID& aId ) const
{
 return GetBoard()->GetItem( aId );
}
 
 
void PCB_BASE_FRAME::FocusOnItem( BOARD_ITEM* aItem, PCB_LAYER_ID aLayer )
{
 std::vector<BOARD_ITEM*> items;
 
 if( aItem )
 items.push_back( aItem );
 
 FocusOnItems( items, aLayer );
}
 
 
void PCB_BASE_FRAME::FocusOnItems( std::vector<BOARD_ITEM*> aItems, PCB_LAYER_ID aLayer )
{
 static std::vector<KIID> lastBrightenedItemIDs;
 
 BOARD_ITEM* lastItem = nullptr;
 
 for( KIID lastBrightenedItemID : lastBrightenedItemIDs )
 {
 #if BOOST_VERSION >= 106700
 try
 {
 lastItem = GetBoard()->GetItem( lastBrightenedItemID );
 }
 catch( const boost::uuids::entropy_error& )
 {
 wxLogError( wxT( "A Boost UUID entropy exception was thrown in %s:%s." ),
 __FILE__, __FUNCTION__ );
 }
 #else
 lastItem = GetBoard()->GetItem( lastBrightenedItemID );
 #endif
 
 if( lastItem && lastItem != DELETED_BOARD_ITEM::GetInstance() )
 {
 lastItem->ClearBrightened();
 
 lastItem->RunOnDescendants(
 [&]( BOARD_ITEM* child )
 {
 child->ClearBrightened();
 } );
 
 GetCanvas()->GetView()->Update( lastItem );
 lastBrightenedItemID = niluuid;
 GetCanvas()->Refresh();
 }
 }
 
 lastBrightenedItemIDs.clear();
 
 if( aItems.empty() )
 return;
 
 VECTOR2I focusPt;
 KIGFX::VIEW* view = GetCanvas()->GetView();
 SHAPE_POLY_SET viewportPoly( view->GetViewport() );
 
 for( wxWindow* dialog : findDialogs() )
 {
 wxPoint dialogPos = GetCanvas()->ScreenToClient( dialog->GetScreenPosition() );
 SHAPE_POLY_SET dialogPoly( BOX2D( view->ToWorld( ToVECTOR2D( dialogPos ), true ),
 view->ToWorld( ToVECTOR2D( dialog->GetSize() ), false ) ) );
 
 try
 {
 viewportPoly.BooleanSubtract( dialogPoly, SHAPE_POLY_SET::PM_FAST );
 }
 catch( const std::exception& exc )
 {
 // This may be overkill and could be an assertion but we are more likely to
 // find any clipper errors this way.
 wxLogError( wxT( "Clipper library exception '%s' occurred." ), exc.what() );
 }
 }
 
 SHAPE_POLY_SET itemPoly, clippedPoly;
 
 for( BOARD_ITEM* item : aItems )
 {
 if( item && item != DELETED_BOARD_ITEM::GetInstance() )
 {
 item->SetBrightened();
 
 item->RunOnDescendants(
 [&]( BOARD_ITEM* child )
 {
 child->SetBrightened();
 });
 
 GetCanvas()->GetView()->Update( item );
 lastBrightenedItemIDs.push_back( item->m_Uuid );
 
 // Focus on the object's location. Prefer a visible part of the object to its anchor
 // in order to keep from scrolling around.
 
 focusPt = item->GetPosition();
 
 if( aLayer == UNDEFINED_LAYER && item->GetLayerSet().any() )
 aLayer = item->GetLayerSet().Seq()[0];
 
 switch( item->Type() )
 {
 case PCB_FOOTPRINT_T:
 try
 {
 itemPoly = static_cast<FOOTPRINT*>( item )->GetBoundingHull();
 }
 catch( const std::exception& exc )
 {
 // This may be overkill and could be an assertion but we are more likely to
 // find any clipper errors this way.
 wxLogError( wxT( "Clipper library exception '%s' occurred." ), exc.what() );
 }
 
 break;
 
 case PCB_PAD_T:
 case PCB_MARKER_T:
 case PCB_VIA_T:
 FocusOnLocation( item->GetFocusPosition() );
 GetCanvas()->Refresh();
 return;
 
 case PCB_SHAPE_T:
 case PCB_FIELD_T:
 case PCB_TEXT_T:
 case PCB_TEXTBOX_T:
 case PCB_TRACE_T:
 case PCB_ARC_T:
 case PCB_DIM_ALIGNED_T:
 case PCB_DIM_LEADER_T:
 case PCB_DIM_CENTER_T:
 case PCB_DIM_RADIAL_T:
 case PCB_DIM_ORTHOGONAL_T:
 item->TransformShapeToPolygon( itemPoly, aLayer, 0, pcbIUScale.mmToIU( 0.1 ),
 ERROR_INSIDE );
 break;
 
 case PCB_ZONE_T:
 {
 ZONE* zone = static_cast<ZONE*>( item );
 #if 0
 // Using the filled area shapes to find a Focus point can give good results, but
 // unfortunately the calculations are highly time consuming, even for not very
 // large areas (can be easily a few minutes for large areas).
 // so we used only the zone outline that usually do not have too many vertices.
 zone->TransformShapeToPolygon( itemPoly, aLayer, 0, pcbIUScale.mmToIU( 0.1 ),
 ERROR_INSIDE );
 
 if( itemPoly.IsEmpty() )
 itemPoly = *zone->Outline();
 #else
 // much faster calculation time when using only the zone outlines
 itemPoly = *zone->Outline();
 #endif
 
 break;
 }
 
 default:
 {
 BOX2I item_bbox = item->GetBoundingBox();
 itemPoly.NewOutline();
 itemPoly.Append( item_bbox.GetOrigin() );
 itemPoly.Append( item_bbox.GetOrigin() + VECTOR2I( item_bbox.GetWidth(), 0 ) );
 itemPoly.Append( item_bbox.GetOrigin() + VECTOR2I( 0, item_bbox.GetHeight() ) );
 itemPoly.Append( item_bbox.GetOrigin() + VECTOR2I( item_bbox.GetWidth(),
 item_bbox.GetHeight() ) );
 break;
 }
 }
 
 try
 {
 clippedPoly.BooleanIntersection( itemPoly, viewportPoly, SHAPE_POLY_SET::PM_FAST );
 }
 catch( const std::exception& exc )
 {
 // This may be overkill and could be an assertion but we are more likely to
 // find any clipper errors this way.
 wxLogError( wxT( "Clipper library exception '%s' occurred." ), exc.what() );
 }
 
 if( !clippedPoly.IsEmpty() )
 itemPoly = clippedPoly;
 }
 }
 
 /*
 * Perform a step-wise deflate to find the visual-center-of-mass
 */
 
 BOX2I bbox = itemPoly.BBox();
 int step = std::min( bbox.GetWidth(), bbox.GetHeight() ) / 10;
 
 while( !itemPoly.IsEmpty() )
 {
 focusPt = itemPoly.BBox().Centre();
 
 try
 {
 itemPoly.Deflate( step, CORNER_STRATEGY::ALLOW_ACUTE_CORNERS, ARC_LOW_DEF );
 }
 catch( const std::exception& exc )
 {
 // This may be overkill and could be an assertion but we are more likely to
 // find any clipper errors this way.
 wxLogError( wxT( "Clipper library exception '%s' occurred." ), exc.what() );
 }
 }
 
 FocusOnLocation( focusPt );
 
 GetCanvas()->Refresh();
}
 
 
void PCB_BASE_FRAME::HideSolderMask()
{
 KIGFX::PCB_VIEW* view = GetCanvas()->GetView();
 
 if( view && GetBoard()->m_SolderMaskBridges && view->HasItem( GetBoard()->m_SolderMaskBridges ) )
 view->Remove( GetBoard()->m_SolderMaskBridges );
}
 
 
void PCB_BASE_FRAME::ShowSolderMask()
{
 KIGFX::PCB_VIEW* view = GetCanvas()->GetView();
 
 if( view && GetBoard()->m_SolderMaskBridges )
 {
 if( view->HasItem( GetBoard()->m_SolderMaskBridges ) )
 view->Remove( GetBoard()->m_SolderMaskBridges );
 
 view->Add( GetBoard()->m_SolderMaskBridges );
 }
}
 
 
void PCB_BASE_FRAME::SetPageSettings( const PAGE_INFO& aPageSettings )
{
 m_pcb->SetPageSettings( aPageSettings );
 
 if( GetScreen() )
 GetScreen()->InitDataPoints( aPageSettings.GetSizeIU( pcbIUScale.IU_PER_MILS ) );
}
 
 
const PAGE_INFO& PCB_BASE_FRAME::GetPageSettings() const
{
 return m_pcb->GetPageSettings();
}
 
 
const VECTOR2I PCB_BASE_FRAME::GetPageSizeIU() const
{
 // this function is only needed because EDA_DRAW_FRAME is not compiled
 // with either -DPCBNEW or -DEESCHEMA, so the virtual is used to route
 // into an application specific source file.
 return m_pcb->GetPageSettings().GetSizeIU( pcbIUScale.IU_PER_MILS );
}
 
 
const VECTOR2I& PCB_BASE_FRAME::GetGridOrigin() const
{
 return m_pcb->GetDesignSettings().GetGridOrigin();
}
 
 
void PCB_BASE_FRAME::SetGridOrigin( const VECTOR2I& aPoint )
{
 m_pcb->GetDesignSettings().SetGridOrigin( aPoint );
}
 
 
const VECTOR2I& PCB_BASE_FRAME::GetAuxOrigin() const
{
 return m_pcb->GetDesignSettings().GetAuxOrigin();
}
 
 
const VECTOR2I PCB_BASE_FRAME::GetUserOrigin() const
{
 VECTOR2I origin( 0, 0 );
 
 switch( GetPcbNewSettings()->m_Display.m_DisplayOrigin )
 {
 case PCB_DISPLAY_ORIGIN::PCB_ORIGIN_PAGE: break;
 case PCB_DISPLAY_ORIGIN::PCB_ORIGIN_AUX: origin = GetAuxOrigin(); break;
 case PCB_DISPLAY_ORIGIN::PCB_ORIGIN_GRID: origin = GetGridOrigin(); break;
 default: wxASSERT( false ); break;
 }
 
 return origin;
}
 
ORIGIN_TRANSFORMS& PCB_BASE_FRAME::GetOriginTransforms()
{
 return m_originTransforms;
}
 
 
const TITLE_BLOCK& PCB_BASE_FRAME::GetTitleBlock() const
{
 return m_pcb->GetTitleBlock();
}
 
 
void PCB_BASE_FRAME::SetTitleBlock( const TITLE_BLOCK& aTitleBlock )
{
 m_pcb->SetTitleBlock( aTitleBlock );
}
 
 
BOARD_DESIGN_SETTINGS& PCB_BASE_FRAME::GetDesignSettings() const
{
 return m_pcb->GetDesignSettings();
}
 
 
void PCB_BASE_FRAME::SetDrawBgColor( const COLOR4D& aColor )
{
 m_drawBgColor= aColor;
 m_auimgr.Update();
}
 
 
const PCB_PLOT_PARAMS& PCB_BASE_FRAME::GetPlotSettings() const
{
 return m_pcb->GetPlotOptions();
}
 
 
void PCB_BASE_FRAME::SetPlotSettings( const PCB_PLOT_PARAMS& aSettings )
{
 m_pcb->SetPlotOptions( aSettings );
 
 // Plot Settings can also change the "tent vias" setting, which can affect the solder mask.
 LSET visibleLayers = GetBoard()->GetVisibleLayers();
 
 if( visibleLayers.test( F_Mask ) || visibleLayers.test( B_Mask ) )
 {
 GetCanvas()->GetView()->UpdateAllItemsConditionally(
 [&]( KIGFX::VIEW_ITEM* aItem ) -> int
 {
 BOARD_ITEM* item = dynamic_cast<BOARD_ITEM*>( aItem );
 
 // Note: KIGFX::REPAINT isn't enough for things that go from invisible to
 // visible as they won't be found in the view layer's itemset for re-painting.
 if( item && item->Type() == PCB_VIA_T )
 return KIGFX::ALL;
 
 return 0;
 } );
 
 GetCanvas()->Refresh();
 }
}
 
 
BOX2I PCB_BASE_FRAME::GetBoardBoundingBox( bool aBoardEdgesOnly ) const
{
 BOX2I area = aBoardEdgesOnly ? m_pcb->GetBoardEdgesBoundingBox() : m_pcb->GetBoundingBox();
 
 if( area.GetWidth() == 0 && area.GetHeight() == 0 )
 {
 VECTOR2I pageSize = GetPageSizeIU();
 
 if( m_showBorderAndTitleBlock )
 {
 area.SetOrigin( 0, 0 );
 area.SetEnd( pageSize.x, pageSize.y );
 }
 else
 {
 area.SetOrigin( -pageSize.x / 2, -pageSize.y / 2 );
 area.SetEnd( pageSize.x / 2, pageSize.y / 2 );
 }
 }
 
 return area;
}
 
 
const BOX2I PCB_BASE_FRAME::GetDocumentExtents( bool aIncludeAllVisible ) const
{
 /* "Zoom to Fit" calls this with "aIncludeAllVisible" as true. Since that feature
 * always ignored the page and border, this function returns a bbox without them
 * as well when passed true. This technically is not all things visible, but it
 * keeps behavior consistent.
 *
 * When passed false, this function returns a bbox of just the board edge. This
 * allows things like fabrication text or anything else outside the board edge to
 * be ignored, and just zooms up to the board itself.
 *
 * Calling "GetBoardBoundingBox(true)" when edge cuts are turned off will return
 * the entire page and border, so we call "GetBoardBoundingBox(false)" instead.
 */
 if( aIncludeAllVisible || !m_pcb->IsLayerVisible( Edge_Cuts ) )
 return GetBoardBoundingBox( false );
 else
 return GetBoardBoundingBox( true );
}
 
 
// Virtual function
void PCB_BASE_FRAME::doReCreateMenuBar()
{
}
 
 
void PCB_BASE_FRAME::ShowChangedLanguage()
{
 // call my base class
 EDA_DRAW_FRAME::ShowChangedLanguage();
 
 // tooltips in toolbars
 RecreateToolbars();
 
 EDA_3D_VIEWER_FRAME* viewer3D = Get3DViewerFrame();
 
 if( viewer3D )
 viewer3D->ShowChangedLanguage();
}
 
 
EDA_3D_VIEWER_FRAME* PCB_BASE_FRAME::CreateAndShow3D_Frame()
{
 EDA_3D_VIEWER_FRAME* draw3DFrame = Get3DViewerFrame();
 
 if( !draw3DFrame )
 draw3DFrame = new EDA_3D_VIEWER_FRAME( &Kiway(), this, _( "3D Viewer" ) );
 
 // Raising the window does not show the window on Windows if iconized. This should work
 // on any platform.
 if( draw3DFrame->IsIconized() )
 draw3DFrame->Iconize( false );
 
 draw3DFrame->Raise();
 draw3DFrame->Show( true );
 
 // Raising the window does not set the focus on Linux. This should work on any platform.
 if( wxWindow::FindFocus() != draw3DFrame )
 draw3DFrame->SetFocus();
 
 // Allocate a slice of time to display the 3D frame
 // a call to wxSafeYield() should be enough (and better), but on Linux we need
 // to call wxYield()
 // otherwise the activity messages are not displayed during the first board loading
 wxYield();
 
 // Note, the caller is responsible to load/update the board 3D view.
 // after frame creation the board is not automatically created.
 
 return draw3DFrame;
}
 
 
void PCB_BASE_FRAME::SwitchLayer( PCB_LAYER_ID layer )
{
 PCB_LAYER_ID preslayer = GetActiveLayer();
 auto& displ_opts = GetDisplayOptions();
 
 // Check if the specified layer matches the present layer
 if( layer == preslayer )
 return;
 
 // Copper layers cannot be selected unconditionally; how many of those layers are
 // currently enabled needs to be checked.
 if( IsCopperLayer( layer ) )
 {
 // If only one copper layer is enabled, the only such layer that can be selected to
 // is the "Copper" layer (so the selection of any other copper layer is disregarded).
 if( m_pcb->GetCopperLayerCount() < 2 )
 {
 if( layer != B_Cu )
 return;
 }
 
 // If more than one copper layer is enabled, the "Copper" and "Component" layers
 // can be selected, but the total number of copper layers determines which internal
 // layers are also capable of being selected.
 else
 {
 if( layer != B_Cu && layer != F_Cu && layer >= ( m_pcb->GetCopperLayerCount() - 1 ) )
 return;
 }
 }
 
 // Is yet more checking required? E.g. when the layer to be selected is a non-copper
 // layer, or when switching between a copper layer and a non-copper layer, or vice-versa?
 // ...
 
 SetActiveLayer( layer );
 
 if( displ_opts.m_ContrastModeDisplay != HIGH_CONTRAST_MODE::NORMAL )
 GetCanvas()->Refresh();
}
 
 
GENERAL_COLLECTORS_GUIDE PCB_BASE_FRAME::GetCollectorsGuide()
{
 GENERAL_COLLECTORS_GUIDE guide( m_pcb->GetVisibleLayers(), GetActiveLayer(),
 GetCanvas()->GetView() );
 
 // account for the globals
 guide.SetIgnoreMTextsMarkedNoShow( ! m_pcb->IsElementVisible( LAYER_HIDDEN_TEXT ) );
 guide.SetIgnoreMTextsOnBack( ! m_pcb->IsElementVisible( LAYER_FP_TEXT ) );
 guide.SetIgnoreMTextsOnFront( ! m_pcb->IsElementVisible( LAYER_FP_TEXT ) );
 guide.SetIgnoreModulesOnBack( ! m_pcb->IsElementVisible( LAYER_FOOTPRINTS_BK ) );
 guide.SetIgnoreModulesOnFront( ! m_pcb->IsElementVisible( LAYER_FOOTPRINTS_FR ) );
 guide.SetIgnorePadsOnBack( ! m_pcb->IsElementVisible( LAYER_PADS_SMD_BK ) );
 guide.SetIgnorePadsOnFront( ! m_pcb->IsElementVisible( LAYER_PADS_SMD_FR ) );
 guide.SetIgnoreThroughHolePads( ! m_pcb->IsElementVisible( LAYER_PADS_TH ) );
 guide.SetIgnoreModulesVals( ! m_pcb->IsElementVisible( LAYER_FP_VALUES ) );
 guide.SetIgnoreModulesRefs( ! m_pcb->IsElementVisible( LAYER_FP_REFERENCES ) );
 guide.SetIgnoreThroughVias( ! m_pcb->IsElementVisible( LAYER_VIAS ) );
 guide.SetIgnoreBlindBuriedVias( ! m_pcb->IsElementVisible( LAYER_VIAS ) );
 guide.SetIgnoreMicroVias( ! m_pcb->IsElementVisible( LAYER_VIAS ) );
 guide.SetIgnoreTracks( ! m_pcb->IsElementVisible( LAYER_TRACKS ) );
 
 return guide;
}
 
 
void PCB_BASE_FRAME::UpdateStatusBar()
{
 EDA_DRAW_FRAME::UpdateStatusBar();
 
 BASE_SCREEN* screen = GetScreen();
 
 if( !screen )
 return;
 
 wxString line;
 VECTOR2D cursorPos = GetCanvas()->GetViewControls()->GetCursorPosition();
 
 if( GetShowPolarCoords() ) // display polar coordinates
 {
 double dx = cursorPos.x - screen->m_LocalOrigin.x;
 double dy = cursorPos.y - screen->m_LocalOrigin.y;
 double theta = RAD2DEG( atan2( -dy, dx ) );
 double ro = hypot( dx, dy );
 
 line.Printf( wxT( "r %s theta %.3f" ),
 MessageTextFromValue( ro, false ),
 theta );
 
 SetStatusText( line, 3 );
 }
 
 // Transform absolute coordinates for user origin preferences
 double userXpos = m_originTransforms.ToDisplayAbsX( static_cast<double>( cursorPos.x ) );
 double userYpos = m_originTransforms.ToDisplayAbsY( static_cast<double>( cursorPos.y ) );
 
 // Display absolute coordinates:
 line.Printf( wxT( "X %s Y %s" ),
 MessageTextFromValue( userXpos, false ),
 MessageTextFromValue( userYpos, false ) );
 SetStatusText( line, 2 );
 
 if( !GetShowPolarCoords() ) // display relative cartesian coordinates
 {
 // Calculate relative coordinates
 double relXpos = cursorPos.x - screen->m_LocalOrigin.x;
 double relYpos = cursorPos.y - screen->m_LocalOrigin.y;
 
 // Transform relative coordinates for user origin preferences
 userXpos = m_originTransforms.ToDisplayRelX( relXpos );
 userYpos = m_originTransforms.ToDisplayRelY( relYpos );
 
 line.Printf( wxT( "dx %s dy %s dist %s" ),
 MessageTextFromValue( userXpos, false ),
 MessageTextFromValue( userYpos, false ),
 MessageTextFromValue( hypot( userXpos, userYpos ), false ) );
 SetStatusText( line, 3 );
 }
 
 DisplayGridMsg();
}
 
 
void PCB_BASE_FRAME::unitsChangeRefresh()
{
 EDA_DRAW_FRAME::unitsChangeRefresh(); // Update the status bar.
 
 if( GetBoard() )
 GetBoard()->SetUserUnits( GetUserUnits() );
 
 UpdateGridSelectBox();
}
 
 
void PCB_BASE_FRAME::LoadSettings( APP_SETTINGS_BASE* aCfg )
{
 EDA_DRAW_FRAME::LoadSettings( aCfg );
 
 if( aCfg->m_Window.grid.grids.empty() )
 aCfg->m_Window.grid.grids = aCfg->DefaultGridSizeList();
 
 // Move legacy user grids to grid list
 if( !aCfg->m_Window.grid.user_grid_x.empty() )
 {
 aCfg->m_Window.grid.grids.emplace_back( GRID{ "User Grid", aCfg->m_Window.grid.user_grid_x,
 aCfg->m_Window.grid.user_grid_y } );
 aCfg->m_Window.grid.user_grid_x = wxEmptyString;
 aCfg->m_Window.grid.user_grid_y = wxEmptyString;
 }
 
 // Currently values read from config file are not used because the user cannot
 // change this config
 // if( aCfg->m_Window.zoom_factors.empty() )
 {
 if( ADVANCED_CFG::GetCfg().m_HyperZoom )
 aCfg->m_Window.zoom_factors = { ZOOM_LIST_PCBNEW_HYPER };
 else
 aCfg->m_Window.zoom_factors = { ZOOM_LIST_PCBNEW };
 }
 
 // Some, but not all, derived classes have a PCBNEW_SETTINGS.
 if( PCBNEW_SETTINGS* pcbnew_cfg = dynamic_cast<PCBNEW_SETTINGS*>( aCfg ) )
 m_polarCoords = pcbnew_cfg->m_PolarCoords;
 
 wxASSERT( GetCanvas() );
 
 if( GetCanvas() )
 {
 RENDER_SETTINGS* rs = GetCanvas()->GetView()->GetPainter()->GetSettings();
 
 if( rs )
 {
 rs->SetHighlightFactor( aCfg->m_Graphics.highlight_factor );
 rs->SetSelectFactor( aCfg->m_Graphics.select_factor );
 rs->SetDefaultFont( wxEmptyString ); // Always the KiCad font for PCBs
 }
 }
}
 
 
SEVERITY PCB_BASE_FRAME::GetSeverity( int aErrorCode ) const
{
 if( aErrorCode >= CLEANUP_FIRST )
 return RPT_SEVERITY_ACTION;
 
 BOARD_DESIGN_SETTINGS& bds = GetBoard()->GetDesignSettings();
 
 return bds.m_DRCSeverities[ aErrorCode ];
}
 
 
void PCB_BASE_FRAME::SaveSettings( APP_SETTINGS_BASE* aCfg )
{
 EDA_DRAW_FRAME::SaveSettings( aCfg );
 
 // Some, but not all derived classes have a PCBNEW_SETTINGS.
 PCBNEW_SETTINGS* cfg = dynamic_cast<PCBNEW_SETTINGS*>( aCfg );
 
 if( cfg )
 cfg->m_PolarCoords = m_polarCoords;
}
 
 
PCBNEW_SETTINGS* PCB_BASE_FRAME::GetPcbNewSettings() const
{
 return Pgm().GetSettingsManager().GetAppSettings<PCBNEW_SETTINGS>();
}
 
 
FOOTPRINT_EDITOR_SETTINGS* PCB_BASE_FRAME::GetFootprintEditorSettings() const
{
 return Pgm().GetSettingsManager().GetAppSettings<FOOTPRINT_EDITOR_SETTINGS>();
}
 
 
PCB_VIEWERS_SETTINGS_BASE* PCB_BASE_FRAME::GetViewerSettingsBase() const
{
 switch( GetFrameType() )
 {
 case FRAME_PCB_EDITOR:
 case FRAME_PCB_DISPLAY3D:
 default:
 return Pgm().GetSettingsManager().GetAppSettings<PCBNEW_SETTINGS>();
 
 case FRAME_FOOTPRINT_EDITOR:
 case FRAME_FOOTPRINT_WIZARD:
 return Pgm().GetSettingsManager().GetAppSettings<FOOTPRINT_EDITOR_SETTINGS>();
 
 case FRAME_FOOTPRINT_VIEWER:
 case FRAME_FOOTPRINT_CHOOSER:
 case FRAME_FOOTPRINT_PREVIEW:
 case FRAME_CVPCB:
 case FRAME_CVPCB_DISPLAY:
 return Pgm().GetSettingsManager().GetAppSettings<CVPCB_SETTINGS>();
 }
}
 
 
MAGNETIC_SETTINGS* PCB_BASE_FRAME::GetMagneticItemsSettings()
{
 return &GetPcbNewSettings()->m_MagneticItems;
}
 
 
void PCB_BASE_FRAME::CommonSettingsChanged( bool aEnvVarsChanged, bool aTextVarsChanged )
{
 EDA_DRAW_FRAME::CommonSettingsChanged( aEnvVarsChanged, aTextVarsChanged );
 
 KIGFX::VIEW* view = GetCanvas()->GetView();
 KIGFX::PCB_PAINTER* painter = static_cast<KIGFX::PCB_PAINTER*>( view->GetPainter() );
 PCB_RENDER_SETTINGS* settings = painter->GetSettings();
 
 settings->LoadColors( GetColorSettings( true ) );
 settings->LoadDisplayOptions( GetDisplayOptions() );
 settings->m_ForceShowFieldsWhenFPSelected = GetPcbNewSettings()->m_Display.m_ForceShowFieldsWhenFPSelected;
 
 // Note: KIGFX::REPAINT isn't enough for things that go from invisible to visible as
 // they won't be found in the view layer's itemset for re-painting.
 GetCanvas()->GetView()->UpdateAllItemsConditionally(
 [&]( KIGFX::VIEW_ITEM* aItem ) -> int
 {
 if( dynamic_cast<RATSNEST_VIEW_ITEM*>( aItem ) )
 {
 return KIGFX::ALL; // ratsnest display
 }
 else if( dynamic_cast<PCB_TRACK*>( aItem ) )
 {
 return KIGFX::REPAINT; // track, arc & via clearance display
 }
 else if( dynamic_cast<PAD*>( aItem ) )
 {
 return KIGFX::REPAINT; // pad clearance display
 }
 
 return 0;
 } );
 
 view->UpdateAllItems( KIGFX::COLOR );
 
 RecreateToolbars();
 
 // The 3D viewer isn't in the Kiway, so send its update manually
 EDA_3D_VIEWER_FRAME* viewer = Get3DViewerFrame();
 
 if( viewer )
 viewer->CommonSettingsChanged( aEnvVarsChanged, aTextVarsChanged );
}
 
 
void PCB_BASE_FRAME::OnModify()
{
 EDA_BASE_FRAME::OnModify();
 
 GetScreen()->SetContentModified();
 m_autoSaveRequired = true;
 
 GetBoard()->IncrementTimeStamp();
 
 UpdateStatusBar();
 UpdateMsgPanel();
}
 
 
void PCB_BASE_FRAME::rebuildConnectivity()
{
 GetBoard()->BuildConnectivity();
 GetToolManager()->PostEvent( EVENTS::ConnectivityChangedEvent );
 GetCanvas()->RedrawRatsnest();
}
 
 
PCB_DRAW_PANEL_GAL* PCB_BASE_FRAME::GetCanvas() const
{
 return static_cast<PCB_DRAW_PANEL_GAL*>( EDA_DRAW_FRAME::GetCanvas() );
}
 
 
void PCB_BASE_FRAME::ActivateGalCanvas()
{
 EDA_DRAW_FRAME::ActivateGalCanvas();
 
 EDA_DRAW_PANEL_GAL* canvas = GetCanvas();
 KIGFX::VIEW* view = canvas->GetView();
 
 if( m_toolManager )
 {
 m_toolManager->SetEnvironment( m_pcb, view, canvas->GetViewControls(), config(), this );
 
 m_toolManager->ResetTools( TOOL_BASE::GAL_SWITCH );
 }
 
 KIGFX::PCB_PAINTER* painter = static_cast<KIGFX::PCB_PAINTER*>( view->GetPainter() );
 KIGFX::PCB_RENDER_SETTINGS* settings = painter->GetSettings();
 const PCB_DISPLAY_OPTIONS& displ_opts = GetDisplayOptions();
 
 settings->LoadDisplayOptions( displ_opts );
 settings->LoadColors( GetColorSettings() );
 settings->m_ForceShowFieldsWhenFPSelected = GetPcbNewSettings()->m_Display.m_ForceShowFieldsWhenFPSelected;
 
 view->RecacheAllItems();
 canvas->SetEventDispatcher( m_toolDispatcher );
 canvas->StartDrawing();
 
 try
 
 {
 if( m_spaceMouse == nullptr )
 {
 m_spaceMouse = new NL_PCBNEW_PLUGIN( GetCanvas() );
 }
 }
 catch( const std::system_error& e )
 {
 wxLogTrace( wxT( "KI_TRACE_NAVLIB" ), e.what() );
 }
}
 
 
void PCB_BASE_FRAME::SetDisplayOptions( const PCB_DISPLAY_OPTIONS& aOptions, bool aRefresh )
{
 bool hcChanged = m_displayOptions.m_ContrastModeDisplay != aOptions.m_ContrastModeDisplay;
 bool hcVisChanged = m_displayOptions.m_ContrastModeDisplay == HIGH_CONTRAST_MODE::HIDDEN
 || aOptions.m_ContrastModeDisplay == HIGH_CONTRAST_MODE::HIDDEN;
 m_displayOptions = aOptions;
 
 EDA_DRAW_PANEL_GAL* canvas = GetCanvas();
 KIGFX::PCB_VIEW* view = static_cast<KIGFX::PCB_VIEW*>( canvas->GetView() );
 
 view->UpdateDisplayOptions( aOptions );
 canvas->SetHighContrastLayer( GetActiveLayer() );
 OnDisplayOptionsChanged();
 
 // Vias on a restricted layer set must be redrawn when high contrast mode is changed
 if( hcChanged )
 {
 bool showNetNames = false;
 
 if( PCBNEW_SETTINGS* config = dynamic_cast<PCBNEW_SETTINGS*>( Kiface().KifaceSettings() ) )
 showNetNames = config->m_Display.m_NetNames > 0;
 
 // Note: KIGFX::REPAINT isn't enough for things that go from invisible to visible as
 // they won't be found in the view layer's itemset for re-painting.
 GetCanvas()->GetView()->UpdateAllItemsConditionally(
 [&]( KIGFX::VIEW_ITEM* aItem ) -> int
 {
 if( PCB_VIA* via = dynamic_cast<PCB_VIA*>( aItem ) )
 {
 if( via->GetViaType() == VIATYPE::BLIND_BURIED
 || via->GetViaType() == VIATYPE::MICROVIA
 || via->GetRemoveUnconnected()
 || showNetNames )
 {
 return hcVisChanged ? KIGFX::ALL : KIGFX::REPAINT;
 }
 }
 else if( PAD* pad = dynamic_cast<PAD*>( aItem ) )
 {
 if( pad->GetRemoveUnconnected()
 || showNetNames )
 {
 return hcVisChanged ? KIGFX::ALL : KIGFX::REPAINT;
 }
 }
 
 return 0;
 } );
 }
 
 if( aRefresh )
 canvas->Refresh();
}
 
 
void PCB_BASE_FRAME::setFPWatcher( FOOTPRINT* aFootprint )
{
 wxLogTrace( "KICAD_LIB_WATCH", "setFPWatcher" );
 
 Unbind( wxEVT_FSWATCHER, &PCB_BASE_FRAME::OnFPChange, this );
 
 if( m_watcher )
 {
 wxLogTrace( "KICAD_LIB_WATCH", "Remove watch" );
 m_watcher->RemoveAll();
 m_watcher->SetOwner( nullptr );
 m_watcher.reset();
 }
 
 wxString libfullname;
 FP_LIB_TABLE* tbl = PROJECT_PCB::PcbFootprintLibs( &Prj() );
 
 if( !aFootprint || !tbl )
 return;
 
 try
 {
 const FP_LIB_TABLE_ROW* row = tbl->FindRow( aFootprint->GetFPID().GetLibNickname() );
 
 if( !row )
 return;
 
 libfullname = row->GetFullURI( true );
 }
 catch( const std::exception& e )
 {
 DisplayInfoMessage( this, e.what() );
 return;
 }
 catch( const IO_ERROR& error )
 {
 wxLogTrace( "KICAD_LIB_WATCH", "Error: %s", error.What() );
 return;
 }
 
 m_watcherFileName.Assign( libfullname, aFootprint->GetFPID().GetLibItemName(),
 FILEEXT::KiCadFootprintFileExtension );
 
 if( !m_watcherFileName.FileExists() )
 return;
 
 m_watcherLastModified = m_watcherFileName.GetModificationTime();
 
 Bind( wxEVT_FSWATCHER, &PCB_BASE_FRAME::OnFPChange, this );
 m_watcher = std::make_unique<wxFileSystemWatcher>();
 m_watcher->SetOwner( this );
 
 wxFileName fn;
 fn.AssignDir( m_watcherFileName.GetPath() );
 fn.DontFollowLink();
 
 wxLogTrace( "KICAD_LIB_WATCH", "Add watch: %s", fn.GetPath() );
 
 m_watcher->Add( fn );
}
 
 
void PCB_BASE_FRAME::OnFPChange( wxFileSystemWatcherEvent& aEvent )
{
 if( aEvent.GetPath() != m_watcherFileName.GetFullPath() )
 return;
 
 // Start the debounce timer (set to 1 second)
 if( !m_watcherDebounceTimer.StartOnce( 1000 ) )
 {
 wxLogTrace( "KICAD_LIB_WATCH", "Failed to start the debounce timer" );
 return;
 }
}
 
 
void PCB_BASE_FRAME::OnFpChangeDebounceTimer( wxTimerEvent& aEvent )
{
 wxLogTrace( "KICAD_LIB_WATCH", "OnFpChangeDebounceTimer" );
 
 // Disable logging to avoid spurious messages and check if the file has changed
 wxLog::EnableLogging( false );
 wxDateTime lastModified = m_watcherFileName.GetModificationTime();
 wxLog::EnableLogging( true );
 
 if( lastModified == m_watcherLastModified || !lastModified.IsValid() )
 return;
 
 m_watcherLastModified = lastModified;
 
 FOOTPRINT* fp = GetBoard()->GetFirstFootprint();
 FP_LIB_TABLE* tbl = PROJECT_PCB::PcbFootprintLibs( &Prj() );
 
 // When loading a footprint from a library in the footprint editor
 // the items UUIDs must be keep and not reinitialized
 bool keepUUID = IsType( FRAME_FOOTPRINT_EDITOR );
 
 if( !fp || !tbl )
 return;
 
 if( !GetScreen()->IsContentModified()
 || IsOK( this, _( "The library containing the current footprint has changed.\n"
 "Do you want to reload the footprint?" ) ) )
 {
 wxString fpname = fp->GetFPID().GetLibItemName();
 wxString nickname = fp->GetFPID().GetLibNickname();
 
 try
 {
 FOOTPRINT* newfp = tbl->FootprintLoad( nickname, fpname, keepUUID );
 
 if( newfp )
 {
 std::vector<KIID> selectedItems;
 
 for( const EDA_ITEM* item : GetCurrentSelection() )
 {
 wxString uuidStr = item->m_Uuid.AsString();
 selectedItems.emplace_back( item->m_Uuid );
 }
 
 m_toolManager->ResetTools( TOOL_BASE::MODEL_RELOAD );
 
 ReloadFootprint( newfp );
 
 newfp->ClearAllNets();
 GetCanvas()->UpdateColors();
 GetCanvas()->DisplayBoard( GetBoard() );
 m_toolManager->ResetTools( TOOL_BASE::MODEL_RELOAD );
 
 std::vector<EDA_ITEM*> sel;
 
 for( const KIID& uuid : selectedItems )
 {
 BOARD_ITEM* item = GetBoard()->GetItem( uuid );
 
 if( item != DELETED_BOARD_ITEM::GetInstance() )
 sel.push_back( item );
 }
 
 if( !sel.empty() )
 m_toolManager->RunAction( PCB_ACTIONS::selectItems, &sel );
 }
 }
 catch( const IO_ERROR& ioe )
 {
 DisplayError( this, ioe.What() );
 }
 }
}