pcb_draw_panel_gal.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2014-2017 CERN
 * Copyright The 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, see <https://www.gnu.org/licenses/>.
 */
 
#include "pcb_draw_panel_gal.h"
 
#include <settings/color_settings.h>
#include <pcb_view.h>
#include <view/wx_view_controls.h>
#include <pcb_painter.h>
#include <drawing_sheet/ds_proxy_view_item.h>
#include <connectivity/connectivity_data.h>
 
#include <board.h>
#include <footprint.h>
#include <pad.h>
#include <pcb_track.h>
#include <macros.h>
#include <pcb_generator.h>
#include <pcb_marker.h>
#include <pcb_point.h>
#include <pcb_grid_item.h>
#include <pcb_base_frame.h>
#include <pcbnew_settings.h>
#include <ratsnest/ratsnest_data.h>
#include <ratsnest/ratsnest_view_item.h>
#include <pcb_board_outline.h>
 
#include <pgm_base.h>
#include <settings/settings_manager.h>
#include <confirm.h>
#include <progress_reporter.h>
#include <string_utils.h>
 
#include <gal/graphics_abstraction_layer.h>
#include <zoom_defines.h>
 
#include <functional>
#include <memory>
#include <thread>
#include <fmt/format.h>
 
using namespace std::placeholders;
 
 
const int GAL_LAYER_ORDER[] = {
    LAYER_UI_START + 9, LAYER_UI_START + 8, LAYER_UI_START + 7, LAYER_UI_START + 6, LAYER_UI_START + 5,
    LAYER_UI_START + 4, LAYER_UI_START + 3, LAYER_UI_START + 2, LAYER_UI_START + 1, LAYER_UI_START,
 
    LAYER_GP_OVERLAY, LAYER_ROUTER_PREVIEW_COLLISION, LAYER_SELECT_OVERLAY, LAYER_CONFLICTS_SHADOW,
 
    LAYER_DRC_HIGHLIGHTED, LAYER_DRC_ERROR, LAYER_DRC_WARNING, LAYER_DRC_EXCLUSION, LAYER_MARKER_SHADOWS,
 
    LAYER_PAD_NETNAMES, LAYER_VIA_NETNAMES,
 
    Dwgs_User, ZONE_LAYER_FOR( Dwgs_User ),
    POINT_LAYER_FOR( Dwgs_User ), Cmts_User, ZONE_LAYER_FOR( Cmts_User ), POINT_LAYER_FOR( Cmts_User ), Eco1_User,
    ZONE_LAYER_FOR( Eco1_User ), POINT_LAYER_FOR( Eco1_User ), Eco2_User, ZONE_LAYER_FOR( Eco2_User ),
    POINT_LAYER_FOR( Eco2_User ), Edge_Cuts, ZONE_LAYER_FOR( Edge_Cuts ), POINT_LAYER_FOR( Edge_Cuts ), Margin,
    ZONE_LAYER_FOR( Margin ), POINT_LAYER_FOR( Margin ),
 
    User_1, ZONE_LAYER_FOR( User_1 ), POINT_LAYER_FOR( User_1 ), User_2, ZONE_LAYER_FOR( User_2 ),
    POINT_LAYER_FOR( User_2 ), User_3, ZONE_LAYER_FOR( User_3 ), POINT_LAYER_FOR( User_3 ), User_4,
    ZONE_LAYER_FOR( User_4 ), POINT_LAYER_FOR( User_4 ), User_5, ZONE_LAYER_FOR( User_5 ), POINT_LAYER_FOR( User_5 ),
    User_6, ZONE_LAYER_FOR( User_6 ), POINT_LAYER_FOR( User_6 ), User_7, ZONE_LAYER_FOR( User_7 ),
    POINT_LAYER_FOR( User_7 ), User_8, ZONE_LAYER_FOR( User_8 ), POINT_LAYER_FOR( User_8 ), User_9,
    ZONE_LAYER_FOR( User_9 ), POINT_LAYER_FOR( User_9 ), User_10, ZONE_LAYER_FOR( User_10 ), POINT_LAYER_FOR( User_10 ),
    User_11, ZONE_LAYER_FOR( User_11 ), POINT_LAYER_FOR( User_11 ), User_12, ZONE_LAYER_FOR( User_12 ),
    POINT_LAYER_FOR( User_12 ), User_13, ZONE_LAYER_FOR( User_13 ), POINT_LAYER_FOR( User_13 ), User_14,
    ZONE_LAYER_FOR( User_14 ), POINT_LAYER_FOR( User_14 ), User_15, ZONE_LAYER_FOR( User_15 ),
    POINT_LAYER_FOR( User_15 ), User_16, ZONE_LAYER_FOR( User_16 ), POINT_LAYER_FOR( User_16 ), User_17,
    ZONE_LAYER_FOR( User_17 ), POINT_LAYER_FOR( User_17 ), User_18, ZONE_LAYER_FOR( User_18 ),
    POINT_LAYER_FOR( User_18 ), User_19, ZONE_LAYER_FOR( User_19 ), POINT_LAYER_FOR( User_19 ), User_20,
    ZONE_LAYER_FOR( User_20 ), POINT_LAYER_FOR( User_20 ), User_21, ZONE_LAYER_FOR( User_21 ),
    POINT_LAYER_FOR( User_21 ), User_22, ZONE_LAYER_FOR( User_22 ), POINT_LAYER_FOR( User_22 ), User_23,
    ZONE_LAYER_FOR( User_23 ), POINT_LAYER_FOR( User_23 ), User_24, ZONE_LAYER_FOR( User_24 ),
    POINT_LAYER_FOR( User_24 ), User_25, ZONE_LAYER_FOR( User_25 ), POINT_LAYER_FOR( User_25 ), User_26,
    ZONE_LAYER_FOR( User_26 ), POINT_LAYER_FOR( User_26 ), User_27, ZONE_LAYER_FOR( User_27 ),
    POINT_LAYER_FOR( User_27 ), User_28, ZONE_LAYER_FOR( User_28 ), POINT_LAYER_FOR( User_28 ), User_29,
    ZONE_LAYER_FOR( User_29 ), POINT_LAYER_FOR( User_29 ), User_30, ZONE_LAYER_FOR( User_30 ),
    POINT_LAYER_FOR( User_30 ), User_31, ZONE_LAYER_FOR( User_31 ), POINT_LAYER_FOR( User_31 ), User_32,
    ZONE_LAYER_FOR( User_32 ), POINT_LAYER_FOR( User_32 ), User_33, ZONE_LAYER_FOR( User_33 ),
    POINT_LAYER_FOR( User_33 ), User_34, ZONE_LAYER_FOR( User_34 ), POINT_LAYER_FOR( User_34 ), User_35,
    ZONE_LAYER_FOR( User_35 ), POINT_LAYER_FOR( User_35 ), User_36, ZONE_LAYER_FOR( User_36 ),
    POINT_LAYER_FOR( User_36 ), User_37, ZONE_LAYER_FOR( User_37 ), POINT_LAYER_FOR( User_37 ), User_38,
    ZONE_LAYER_FOR( User_38 ), POINT_LAYER_FOR( User_38 ), User_39, ZONE_LAYER_FOR( User_39 ),
    POINT_LAYER_FOR( User_39 ), User_40, ZONE_LAYER_FOR( User_40 ), POINT_LAYER_FOR( User_40 ), User_41,
    ZONE_LAYER_FOR( User_41 ), POINT_LAYER_FOR( User_41 ), User_42, ZONE_LAYER_FOR( User_42 ),
    POINT_LAYER_FOR( User_42 ), User_43, ZONE_LAYER_FOR( User_43 ), POINT_LAYER_FOR( User_43 ), User_44,
    ZONE_LAYER_FOR( User_44 ), POINT_LAYER_FOR( User_44 ), User_45, ZONE_LAYER_FOR( User_45 ),
    POINT_LAYER_FOR( User_45 ),
 
    POINT_LAYER_FOR( F_Cu ),
 
    LAYER_FP_TEXT, LAYER_FP_REFERENCES, LAYER_FP_VALUES,
 
    LAYER_SUBGRIDS,
 
    LAYER_RATSNEST, LAYER_ANCHOR, LAYER_POINTS, LAYER_VIA_STITCHING, LAYER_LOCKED_ITEM_SHADOW, LAYER_CONSTRAINT_SHADOW,
    LAYER_VIA_HOLES, LAYER_VIA_HOLEWALLS,
    LAYER_PAD_PLATEDHOLES, LAYER_PAD_HOLEWALLS, LAYER_NON_PLATEDHOLES, LAYER_VIA_THROUGH, LAYER_VIA_BLIND,
    LAYER_VIA_BURIED, LAYER_VIA_MICROVIA,
 
    LAYER_PAD_FR_NETNAMES, NETNAMES_LAYER_INDEX( F_Cu ), PAD_COPPER_LAYER_FOR( F_Cu ), VIA_COPPER_LAYER_FOR( F_Cu ),
    CLEARANCE_LAYER_FOR( F_Cu ),
    // POINT_LAYER_FOR( F_Cu ),
    F_Cu, ZONE_LAYER_FOR( F_Cu ), F_Mask, ZONE_LAYER_FOR( F_Mask ), F_SilkS, ZONE_LAYER_FOR( F_SilkS ), F_Paste,
    ZONE_LAYER_FOR( F_Paste ), F_Adhes, ZONE_LAYER_FOR( F_Adhes ), F_CrtYd, ZONE_LAYER_FOR( F_CrtYd ), F_Fab,
    ZONE_LAYER_FOR( F_Fab ),
 
    NETNAMES_LAYER_INDEX( In1_Cu ), PAD_COPPER_LAYER_FOR( In1_Cu ), VIA_COPPER_LAYER_FOR( In1_Cu ),
    CLEARANCE_LAYER_FOR( In1_Cu ), POINT_LAYER_FOR( In1_Cu ), In1_Cu, ZONE_LAYER_FOR( In1_Cu ),
    NETNAMES_LAYER_INDEX( In2_Cu ), PAD_COPPER_LAYER_FOR( In2_Cu ), VIA_COPPER_LAYER_FOR( In2_Cu ),
    CLEARANCE_LAYER_FOR( In2_Cu ), POINT_LAYER_FOR( In2_Cu ), In2_Cu, ZONE_LAYER_FOR( In2_Cu ),
    NETNAMES_LAYER_INDEX( In3_Cu ), PAD_COPPER_LAYER_FOR( In3_Cu ), VIA_COPPER_LAYER_FOR( In3_Cu ),
    CLEARANCE_LAYER_FOR( In3_Cu ), POINT_LAYER_FOR( In3_Cu ), In3_Cu, ZONE_LAYER_FOR( In3_Cu ),
    NETNAMES_LAYER_INDEX( In4_Cu ), PAD_COPPER_LAYER_FOR( In4_Cu ), VIA_COPPER_LAYER_FOR( In4_Cu ),
    CLEARANCE_LAYER_FOR( In4_Cu ), POINT_LAYER_FOR( In4_Cu ), In4_Cu, ZONE_LAYER_FOR( In4_Cu ),
    NETNAMES_LAYER_INDEX( In5_Cu ), PAD_COPPER_LAYER_FOR( In5_Cu ), VIA_COPPER_LAYER_FOR( In5_Cu ),
    CLEARANCE_LAYER_FOR( In5_Cu ), POINT_LAYER_FOR( In5_Cu ), In5_Cu, ZONE_LAYER_FOR( In5_Cu ),
    NETNAMES_LAYER_INDEX( In6_Cu ), PAD_COPPER_LAYER_FOR( In6_Cu ), VIA_COPPER_LAYER_FOR( In6_Cu ),
    CLEARANCE_LAYER_FOR( In6_Cu ), POINT_LAYER_FOR( In6_Cu ), In6_Cu, ZONE_LAYER_FOR( In6_Cu ),
    NETNAMES_LAYER_INDEX( In7_Cu ), PAD_COPPER_LAYER_FOR( In7_Cu ), VIA_COPPER_LAYER_FOR( In7_Cu ),
    CLEARANCE_LAYER_FOR( In7_Cu ), POINT_LAYER_FOR( In7_Cu ), In7_Cu, ZONE_LAYER_FOR( In7_Cu ),
    NETNAMES_LAYER_INDEX( In8_Cu ), PAD_COPPER_LAYER_FOR( In8_Cu ), VIA_COPPER_LAYER_FOR( In8_Cu ),
    CLEARANCE_LAYER_FOR( In8_Cu ), POINT_LAYER_FOR( In8_Cu ), In8_Cu, ZONE_LAYER_FOR( In8_Cu ),
    NETNAMES_LAYER_INDEX( In9_Cu ), PAD_COPPER_LAYER_FOR( In9_Cu ), VIA_COPPER_LAYER_FOR( In9_Cu ),
    CLEARANCE_LAYER_FOR( In9_Cu ), POINT_LAYER_FOR( In9_Cu ), In9_Cu, ZONE_LAYER_FOR( In9_Cu ),
    NETNAMES_LAYER_INDEX( In10_Cu ), PAD_COPPER_LAYER_FOR( In10_Cu ), VIA_COPPER_LAYER_FOR( In10_Cu ),
    CLEARANCE_LAYER_FOR( In10_Cu ), POINT_LAYER_FOR( In10_Cu ), In10_Cu, ZONE_LAYER_FOR( In10_Cu ),
    NETNAMES_LAYER_INDEX( In11_Cu ), PAD_COPPER_LAYER_FOR( In11_Cu ), VIA_COPPER_LAYER_FOR( In11_Cu ),
    CLEARANCE_LAYER_FOR( In11_Cu ), POINT_LAYER_FOR( In11_Cu ), In11_Cu, ZONE_LAYER_FOR( In11_Cu ),
    NETNAMES_LAYER_INDEX( In12_Cu ), PAD_COPPER_LAYER_FOR( In12_Cu ), VIA_COPPER_LAYER_FOR( In12_Cu ),
    CLEARANCE_LAYER_FOR( In12_Cu ), POINT_LAYER_FOR( In12_Cu ), In12_Cu, ZONE_LAYER_FOR( In12_Cu ),
    NETNAMES_LAYER_INDEX( In13_Cu ), PAD_COPPER_LAYER_FOR( In13_Cu ), VIA_COPPER_LAYER_FOR( In13_Cu ),
    CLEARANCE_LAYER_FOR( In13_Cu ), POINT_LAYER_FOR( In13_Cu ), In13_Cu, ZONE_LAYER_FOR( In13_Cu ),
    NETNAMES_LAYER_INDEX( In14_Cu ), PAD_COPPER_LAYER_FOR( In14_Cu ), VIA_COPPER_LAYER_FOR( In14_Cu ),
    CLEARANCE_LAYER_FOR( In14_Cu ), POINT_LAYER_FOR( In14_Cu ), In14_Cu, ZONE_LAYER_FOR( In14_Cu ),
    NETNAMES_LAYER_INDEX( In15_Cu ), PAD_COPPER_LAYER_FOR( In15_Cu ), VIA_COPPER_LAYER_FOR( In15_Cu ),
    CLEARANCE_LAYER_FOR( In15_Cu ), POINT_LAYER_FOR( In15_Cu ), In15_Cu, ZONE_LAYER_FOR( In15_Cu ),
    NETNAMES_LAYER_INDEX( In16_Cu ), PAD_COPPER_LAYER_FOR( In16_Cu ), VIA_COPPER_LAYER_FOR( In16_Cu ),
    CLEARANCE_LAYER_FOR( In16_Cu ), POINT_LAYER_FOR( In16_Cu ), In16_Cu, ZONE_LAYER_FOR( In16_Cu ),
    NETNAMES_LAYER_INDEX( In17_Cu ), PAD_COPPER_LAYER_FOR( In17_Cu ), VIA_COPPER_LAYER_FOR( In17_Cu ),
    CLEARANCE_LAYER_FOR( In17_Cu ), POINT_LAYER_FOR( In17_Cu ), In17_Cu, ZONE_LAYER_FOR( In17_Cu ),
    NETNAMES_LAYER_INDEX( In18_Cu ), PAD_COPPER_LAYER_FOR( In18_Cu ), VIA_COPPER_LAYER_FOR( In18_Cu ),
    CLEARANCE_LAYER_FOR( In18_Cu ), POINT_LAYER_FOR( In18_Cu ), In18_Cu, ZONE_LAYER_FOR( In18_Cu ),
    NETNAMES_LAYER_INDEX( In19_Cu ), PAD_COPPER_LAYER_FOR( In19_Cu ), VIA_COPPER_LAYER_FOR( In19_Cu ),
    CLEARANCE_LAYER_FOR( In19_Cu ), POINT_LAYER_FOR( In19_Cu ), In19_Cu, ZONE_LAYER_FOR( In19_Cu ),
    NETNAMES_LAYER_INDEX( In20_Cu ), PAD_COPPER_LAYER_FOR( In20_Cu ), VIA_COPPER_LAYER_FOR( In20_Cu ),
    CLEARANCE_LAYER_FOR( In20_Cu ), POINT_LAYER_FOR( In20_Cu ), In20_Cu, ZONE_LAYER_FOR( In20_Cu ),
    NETNAMES_LAYER_INDEX( In21_Cu ), PAD_COPPER_LAYER_FOR( In21_Cu ), VIA_COPPER_LAYER_FOR( In21_Cu ),
    CLEARANCE_LAYER_FOR( In21_Cu ), POINT_LAYER_FOR( In21_Cu ), In21_Cu, ZONE_LAYER_FOR( In21_Cu ),
    NETNAMES_LAYER_INDEX( In22_Cu ), PAD_COPPER_LAYER_FOR( In22_Cu ), VIA_COPPER_LAYER_FOR( In22_Cu ),
    CLEARANCE_LAYER_FOR( In22_Cu ), POINT_LAYER_FOR( In22_Cu ), In22_Cu, ZONE_LAYER_FOR( In22_Cu ),
    NETNAMES_LAYER_INDEX( In23_Cu ), PAD_COPPER_LAYER_FOR( In23_Cu ), VIA_COPPER_LAYER_FOR( In23_Cu ),
    CLEARANCE_LAYER_FOR( In23_Cu ), POINT_LAYER_FOR( In23_Cu ), In23_Cu, ZONE_LAYER_FOR( In23_Cu ),
    NETNAMES_LAYER_INDEX( In24_Cu ), PAD_COPPER_LAYER_FOR( In24_Cu ), VIA_COPPER_LAYER_FOR( In24_Cu ),
    CLEARANCE_LAYER_FOR( In24_Cu ), POINT_LAYER_FOR( In24_Cu ), In24_Cu, ZONE_LAYER_FOR( In24_Cu ),
    NETNAMES_LAYER_INDEX( In25_Cu ), PAD_COPPER_LAYER_FOR( In25_Cu ), VIA_COPPER_LAYER_FOR( In25_Cu ),
    CLEARANCE_LAYER_FOR( In25_Cu ), POINT_LAYER_FOR( In25_Cu ), In25_Cu, ZONE_LAYER_FOR( In25_Cu ),
    NETNAMES_LAYER_INDEX( In26_Cu ), PAD_COPPER_LAYER_FOR( In26_Cu ), VIA_COPPER_LAYER_FOR( In26_Cu ),
    CLEARANCE_LAYER_FOR( In26_Cu ), POINT_LAYER_FOR( In26_Cu ), In26_Cu, ZONE_LAYER_FOR( In26_Cu ),
    NETNAMES_LAYER_INDEX( In27_Cu ), PAD_COPPER_LAYER_FOR( In27_Cu ), VIA_COPPER_LAYER_FOR( In27_Cu ),
    CLEARANCE_LAYER_FOR( In27_Cu ), POINT_LAYER_FOR( In27_Cu ), In27_Cu, ZONE_LAYER_FOR( In27_Cu ),
    NETNAMES_LAYER_INDEX( In28_Cu ), PAD_COPPER_LAYER_FOR( In28_Cu ), VIA_COPPER_LAYER_FOR( In28_Cu ),
    CLEARANCE_LAYER_FOR( In28_Cu ), POINT_LAYER_FOR( In28_Cu ), In28_Cu, ZONE_LAYER_FOR( In28_Cu ),
    NETNAMES_LAYER_INDEX( In29_Cu ), PAD_COPPER_LAYER_FOR( In29_Cu ), VIA_COPPER_LAYER_FOR( In29_Cu ),
    CLEARANCE_LAYER_FOR( In29_Cu ), POINT_LAYER_FOR( In29_Cu ), In29_Cu, ZONE_LAYER_FOR( In29_Cu ),
    NETNAMES_LAYER_INDEX( In30_Cu ), PAD_COPPER_LAYER_FOR( In30_Cu ), VIA_COPPER_LAYER_FOR( In30_Cu ),
    CLEARANCE_LAYER_FOR( In30_Cu ), POINT_LAYER_FOR( In30_Cu ), In30_Cu, ZONE_LAYER_FOR( In30_Cu ),
 
    LAYER_PAD_BK_NETNAMES, NETNAMES_LAYER_INDEX( B_Cu ), PAD_COPPER_LAYER_FOR( B_Cu ), VIA_COPPER_LAYER_FOR( B_Cu ),
    CLEARANCE_LAYER_FOR( B_Cu ), POINT_LAYER_FOR( B_Cu ), B_Cu, ZONE_LAYER_FOR( B_Cu ), B_Mask,
    ZONE_LAYER_FOR( B_Mask ), B_SilkS, ZONE_LAYER_FOR( B_SilkS ), B_Paste, ZONE_LAYER_FOR( B_Paste ), B_Adhes,
    ZONE_LAYER_FOR( B_Adhes ), B_CrtYd, ZONE_LAYER_FOR( B_CrtYd ), B_Fab, ZONE_LAYER_FOR( B_Fab ),
 
    LAYER_ROUTER_PREVIEW_SHADOW,
 
    BITMAP_LAYER_FOR( Dwgs_User ), BITMAP_LAYER_FOR( Cmts_User ), BITMAP_LAYER_FOR( Eco1_User ),
    BITMAP_LAYER_FOR( Eco2_User ), BITMAP_LAYER_FOR( Edge_Cuts ), BITMAP_LAYER_FOR( Margin ),
 
    BITMAP_LAYER_FOR( User_1 ), BITMAP_LAYER_FOR( User_2 ), BITMAP_LAYER_FOR( User_3 ), BITMAP_LAYER_FOR( User_4 ),
    BITMAP_LAYER_FOR( User_5 ), BITMAP_LAYER_FOR( User_6 ), BITMAP_LAYER_FOR( User_7 ), BITMAP_LAYER_FOR( User_8 ),
    BITMAP_LAYER_FOR( User_9 ), BITMAP_LAYER_FOR( User_10 ), BITMAP_LAYER_FOR( User_11 ), BITMAP_LAYER_FOR( User_12 ),
    BITMAP_LAYER_FOR( User_13 ), BITMAP_LAYER_FOR( User_14 ), BITMAP_LAYER_FOR( User_15 ), BITMAP_LAYER_FOR( User_16 ),
    BITMAP_LAYER_FOR( User_17 ), BITMAP_LAYER_FOR( User_18 ), BITMAP_LAYER_FOR( User_19 ), BITMAP_LAYER_FOR( User_20 ),
    BITMAP_LAYER_FOR( User_21 ), BITMAP_LAYER_FOR( User_22 ), BITMAP_LAYER_FOR( User_23 ), BITMAP_LAYER_FOR( User_24 ),
    BITMAP_LAYER_FOR( User_25 ), BITMAP_LAYER_FOR( User_26 ), BITMAP_LAYER_FOR( User_27 ), BITMAP_LAYER_FOR( User_28 ),
    BITMAP_LAYER_FOR( User_29 ), BITMAP_LAYER_FOR( User_30 ), BITMAP_LAYER_FOR( User_31 ), BITMAP_LAYER_FOR( User_32 ),
    BITMAP_LAYER_FOR( User_33 ), BITMAP_LAYER_FOR( User_34 ), BITMAP_LAYER_FOR( User_35 ), BITMAP_LAYER_FOR( User_36 ),
    BITMAP_LAYER_FOR( User_37 ), BITMAP_LAYER_FOR( User_38 ), BITMAP_LAYER_FOR( User_39 ), BITMAP_LAYER_FOR( User_40 ),
    BITMAP_LAYER_FOR( User_41 ), BITMAP_LAYER_FOR( User_42 ), BITMAP_LAYER_FOR( User_43 ), BITMAP_LAYER_FOR( User_44 ),
    BITMAP_LAYER_FOR( User_45 ),
 
    BITMAP_LAYER_FOR( F_Cu ), BITMAP_LAYER_FOR( F_Mask ), BITMAP_LAYER_FOR( F_SilkS ), BITMAP_LAYER_FOR( F_Paste ),
    BITMAP_LAYER_FOR( F_Adhes ), BITMAP_LAYER_FOR( F_CrtYd ), BITMAP_LAYER_FOR( F_Fab ),
 
    BITMAP_LAYER_FOR( In1_Cu ), BITMAP_LAYER_FOR( In2_Cu ), BITMAP_LAYER_FOR( In3_Cu ), BITMAP_LAYER_FOR( In4_Cu ),
    BITMAP_LAYER_FOR( In5_Cu ), BITMAP_LAYER_FOR( In6_Cu ), BITMAP_LAYER_FOR( In7_Cu ), BITMAP_LAYER_FOR( In8_Cu ),
    BITMAP_LAYER_FOR( In9_Cu ), BITMAP_LAYER_FOR( In10_Cu ), BITMAP_LAYER_FOR( In11_Cu ), BITMAP_LAYER_FOR( In12_Cu ),
    BITMAP_LAYER_FOR( In13_Cu ), BITMAP_LAYER_FOR( In14_Cu ), BITMAP_LAYER_FOR( In15_Cu ), BITMAP_LAYER_FOR( In16_Cu ),
    BITMAP_LAYER_FOR( In17_Cu ), BITMAP_LAYER_FOR( In18_Cu ), BITMAP_LAYER_FOR( In19_Cu ), BITMAP_LAYER_FOR( In20_Cu ),
    BITMAP_LAYER_FOR( In21_Cu ), BITMAP_LAYER_FOR( In22_Cu ), BITMAP_LAYER_FOR( In23_Cu ), BITMAP_LAYER_FOR( In24_Cu ),
    BITMAP_LAYER_FOR( In25_Cu ), BITMAP_LAYER_FOR( In26_Cu ), BITMAP_LAYER_FOR( In27_Cu ), BITMAP_LAYER_FOR( In28_Cu ),
    BITMAP_LAYER_FOR( In29_Cu ), BITMAP_LAYER_FOR( In30_Cu ),
 
    BITMAP_LAYER_FOR( B_Cu ), BITMAP_LAYER_FOR( B_Mask ), BITMAP_LAYER_FOR( B_SilkS ), BITMAP_LAYER_FOR( B_Paste ),
    BITMAP_LAYER_FOR( B_Adhes ), BITMAP_LAYER_FOR( B_CrtYd ), BITMAP_LAYER_FOR( B_Fab ),
 
    LAYER_BOARD_OUTLINE_AREA,
 
    LAYER_DRAWINGSHEET
};
 
 
PCB_DRAW_PANEL_GAL::PCB_DRAW_PANEL_GAL( wxWindow* aParentWindow, wxWindowID aWindowId,
                                        const wxPoint& aPosition, const wxSize& aSize,
                                        KIGFX::GAL_DISPLAY_OPTIONS& aOptions, GAL_TYPE aGalType ) :
        EDA_DRAW_PANEL_GAL( aParentWindow, aWindowId, aPosition, aSize, aOptions, aGalType )
{
    m_view = new KIGFX::PCB_VIEW();
    m_view->SetGAL( m_gal );
 
    FRAME_T frameType = FRAME_FOOTPRINT_PREVIEW;
 
    if( EDA_BASE_FRAME* frame = dynamic_cast<EDA_BASE_FRAME*>( aParentWindow ) )
        frameType = frame->GetFrameType();
 
    m_painter = std::make_unique<KIGFX::PCB_PAINTER>( m_gal, frameType );
    m_view->SetPainter( m_painter.get() );
 
    // This fixes the zoom in and zoom out limits:
    m_view->SetScaleLimits( ZOOM_MAX_LIMIT_PCBNEW, ZOOM_MIN_LIMIT_PCBNEW );
 
    setDefaultLayerOrder();
    setDefaultLayerDeps();
 
    // View controls is the first in the event handler chain, so the Tool Framework operates
    // on updated viewport data.
    m_viewControls = new KIGFX::WX_VIEW_CONTROLS( m_view, this );
 
    // Load display options (such as filled/outline display of items).
    // Can be made only if the parent window is an EDA_DRAW_FRAME (or a derived class)
    // which is not always the case (namely when it is used from a wxDialog like the pad editor)
    if( !IsDialogPreview() )
    {
        KIGFX::PCB_VIEW* view = static_cast<KIGFX::PCB_VIEW*>( m_view );
        PCB_BASE_FRAME*  frame = dynamic_cast<PCB_BASE_FRAME*>( GetParentEDAFrame() );
 
        if( frame )
            view->UpdateDisplayOptions( frame->GetDisplayOptions() );
    }
}
 
 
PCB_DRAW_PANEL_GAL::~PCB_DRAW_PANEL_GAL()
{
}
 
 
void PCB_DRAW_PANEL_GAL::DisplayBoard( BOARD* aBoard, PROGRESS_REPORTER* aReporter )
{
    m_view->Clear();
 
    aBoard->CacheTriangulation( aReporter );
 
    if( m_drawingSheet )
        m_drawingSheet->SetFileName( TO_UTF8( aBoard->GetFileName() ) );
 
    // Collect all board items, expanding footprints into their children (pads, fields,
    // graphics, zones) which are individually registered in the VIEW for rendering and
    // selection. Then bulk-load all items in a single pass for efficient R-tree construction.
    std::vector<KIGFX::VIEW_ITEM*> viewItems;
 
    for( BOARD_ITEM* item : aBoard->GetItemSet() )
    {
        // Geometry-free items (constraints) are never rendered; VIEW::Add would stamp their
        // view data on an empty layer set and risk a later "already in a different view" assert.
        if( item->Type() == PCB_CONSTRAINT_T )
            continue;
 
        viewItems.push_back( item );
 
        if( item->Type() == PCB_FOOTPRINT_T )
        {
            static_cast<FOOTPRINT*>( item )->RunOnChildren(
                    [&viewItems]( BOARD_ITEM* child )
                    {
                        if( child->Type() != PCB_CONSTRAINT_T )
                            viewItems.push_back( child );
                    },
                    RECURSE_MODE::NO_RECURSE );
        }
    }
 
    m_view->AddBatch( viewItems );
 
    aBoard->UpdateBoardOutline();
    m_view->Add( aBoard->BoardOutline() );
 
    // Ratsnest
    if( !aBoard->IsFootprintHolder() )
        addRatsnest( aBoard->GetConnectivity() );
}
 
 
void PCB_DRAW_PANEL_GAL::addRatsnest( std::shared_ptr<CONNECTIVITY_DATA> aConnectivity )
{
    // A retained scene caches the board's lines, so the lines of moving items, which change every
    // frame, get their own overlay item
    if( m_gal->HasRetainedScene() )
    {
        m_ratsnest = std::make_unique<RATSNEST_VIEW_ITEM>( aConnectivity, RATSNEST_VIEW_ITEM::PART::BOARD );
        m_localRatsnest = std::make_unique<RATSNEST_VIEW_ITEM>( aConnectivity, RATSNEST_VIEW_ITEM::PART::LOCAL );
        m_view->Add( m_localRatsnest.get() );
    }
    else
    {
        m_ratsnest = std::make_unique<RATSNEST_VIEW_ITEM>( aConnectivity );
        m_localRatsnest.reset();
    }
 
    m_view->Add( m_ratsnest.get() );
}
 
 
void PCB_DRAW_PANEL_GAL::beforeRedraw()
{
    // Nothing else updates the cached board lines when a move starts or ends, a highlight changes
    // or a display option changes
    if( m_localRatsnest && m_ratsnest->BoardInputsChanged( m_view ) )
        m_view->Update( m_ratsnest.get() );
}
 
 
void PCB_DRAW_PANEL_GAL::SetDrawingSheet( DS_PROXY_VIEW_ITEM* aDrawingSheet )
{
    m_drawingSheet.reset( aDrawingSheet );
    m_view->Add( m_drawingSheet.get() );
}
 
 
void PCB_DRAW_PANEL_GAL::UpdateColors()
{
    COLOR_SETTINGS* cs = ::GetColorSettings( DEFAULT_THEME );
    PCB_BASE_FRAME* frame = dynamic_cast<PCB_BASE_FRAME*>( GetParentEDAFrame() );
 
    if( frame )
        cs = frame->GetColorSettings();
    else if( PCBNEW_SETTINGS* cfg = GetAppSettings<PCBNEW_SETTINGS>( "pcbnew" ) )
        cs = ::GetColorSettings( cfg->m_ColorTheme );
 
    wxCHECK_RET( cs, wxT( "null COLOR_SETTINGS" ) );
 
    auto rs = static_cast<KIGFX::PCB_RENDER_SETTINGS*>( m_view->GetPainter()->GetSettings() );
    rs->LoadColors( cs );
 
    m_gal->SetGridColor( cs->GetColor( LAYER_GRID ) );
    m_gal->SetAxesColor( cs->GetColor( LAYER_GRID_AXES ) );
    m_gal->SetCursorColor( cs->GetColor( LAYER_CURSOR ) );
}
 
 
void PCB_DRAW_PANEL_GAL::prepareGridSources()
{
    std::vector<KIGFX::GRID_SOURCE> sources;
 
    BOARD* board = nullptr;
 
    if( PCB_BASE_FRAME* frame = dynamic_cast<PCB_BASE_FRAME*>( GetParentEDAFrame() ) )
        board = frame->GetBoard();
 
    // The "Grid Items" object visibility toggle hides the rendered grid
    // content; the items themselves (selection decorations, snap) follow
    // the same flag at their own sites.
    if( !board || !board->IsElementVisible( LAYER_SUBGRIDS ) )
    {
        m_gal->SetGridSources( std::move( sources ) );
        return;
    }
 
    // Grid content color comes from the "Grid Items" entry of the color
    // theme, falling back to the global grid color.
    COLOR4D gridItemColor = m_gal->GetGridColor();
 
    if( PCB_BASE_FRAME* frame = dynamic_cast<PCB_BASE_FRAME*>( GetParentEDAFrame() ) )
    {
        if( COLOR_SETTINGS* cs = frame->GetColorSettings() )
            gridItemColor = cs->GetColor( LAYER_SUBGRIDS );
    }
 
    for( BOARD_ITEM* item : board->Drawings() )
    {
        if( item->Type() != PCB_GRID_ITEM_T )
            continue;
 
        PCB_GRID_ITEM* grid = static_cast<PCB_GRID_ITEM*>( item );
 
        // Priority 0 is the background grid's; a grid item must never sink behind it.
        wxASSERT( grid->GetAssignedPriority() > 0 );
 
        KIGFX::GRID_SOURCE src;
        static_cast<GRID_GEOMETRY&>( src ) = grid->AsGridGeometry();
 
        // Pitch is a loop step in the renderer; the spacing setters keep it positive.
        wxASSERT( src.pitch.x > 0.0 && src.pitch.y > 0.0 );
 
        src.tick = grid->GetTickInterval();
        src.highlighted = grid->IsSelected();
        src.snapCursor = grid->Affects().cursor && !grid->IsSelected();
        src.color = gridItemColor;
        src.style = m_gal->GetGridStyle(); // inherit display style
 
        sources.push_back( src );
    }
 
    m_gal->SetGridSources( std::move( sources ) );
}
 
 
void PCB_DRAW_PANEL_GAL::SetHighContrastLayer( PCB_LAYER_ID aLayer )
{
    applyHighContrastLayer( aLayer, false );
}
 
 
void PCB_DRAW_PANEL_GAL::ChangeHighContrastLayer( PCB_LAYER_ID aLayer )
{
    applyHighContrastLayer( aLayer, true );
}
 
 
void PCB_DRAW_PANEL_GAL::applyHighContrastLayer( PCB_LAYER_ID aLayer, bool aOnlyLayerChanged )
{
    // Set display settings for high contrast mode
    KIGFX::RENDER_SETTINGS* rSettings = m_view->GetPainter()->GetSettings();
 
    SetTopLayer( aLayer );
    rSettings->SetActiveLayer( aLayer );
 
    rSettings->ClearHighContrastLayers();
    rSettings->SetLayerIsHighContrast( aLayer );
 
    if( IsCopperLayer( aLayer ) )
    {
        // Bring some other layers to the front in case of copper layers and make them colored
        // fixme do not like the idea of storing the list of layers here,
        // should be done in some other way I guess..
        int layers[] = {
                LAYER_CONFLICTS_SHADOW,
                GetNetnameLayer( aLayer ),
                LAYER_PAD_FR_NETNAMES, LAYER_PAD_BK_NETNAMES, LAYER_PAD_NETNAMES,
                LAYER_VIA_NETNAMES,
                PAD_COPPER_LAYER_FOR( aLayer ),
                VIA_COPPER_LAYER_FOR( aLayer ),
                ZONE_LAYER_FOR( aLayer ),
                BITMAP_LAYER_FOR( aLayer ),
                POINT_LAYER_FOR( aLayer ),
                LAYER_PAD_PLATEDHOLES, LAYER_PAD_HOLEWALLS, LAYER_NON_PLATEDHOLES,
                LAYER_VIA_THROUGH, LAYER_VIA_BLIND, LAYER_VIA_BURIED, LAYER_VIA_MICROVIA, LAYER_VIA_HOLES,
                LAYER_VIA_HOLEWALLS,
                LAYER_DRC_ERROR, LAYER_DRC_WARNING, LAYER_DRC_EXCLUSION, LAYER_MARKER_SHADOWS,
                LAYER_SELECT_OVERLAY, LAYER_GP_OVERLAY,
                LAYER_ROUTER_PREVIEW_SHADOW, LAYER_ROUTER_PREVIEW_COLLISION,
                LAYER_RATSNEST, LAYER_CURSOR,
                LAYER_ANCHOR,
                LAYER_LOCKED_ITEM_SHADOW,
                LAYER_CONSTRAINT_SHADOW
        };
 
        for( int i : layers )
            rSettings->SetLayerIsHighContrast( i );
 
        for( int i = LAYER_UI_START; i < LAYER_UI_END; ++i )
            rSettings->SetLayerIsHighContrast( i );
 
        // Pads should be shown too
        if( aLayer == B_Cu )
        {
            rSettings->SetLayerIsHighContrast( LAYER_FOOTPRINTS_BK );
        }
        else if( aLayer == F_Cu )
        {
            rSettings->SetLayerIsHighContrast( LAYER_FOOTPRINTS_FR );
        }
    }
 
    // High contrast hides and shows items as well as recolouring them
    const bool contrast = rSettings->GetHighContrast();
    auto*      pcbSettings = static_cast<KIGFX::PCB_RENDER_SETTINGS*>( rSettings );
    const bool hidden = contrast && pcbSettings->m_ContrastModeDisplay == HIGH_CONTRAST_MODE::HIDDEN;
 
    // Layers the canvas fades keep their item colours, unless high contrast hides inactive layers
    // now or did at the last switch
    if( aOnlyLayerChanged && pcbSettings->HasCanvasFadedLayers() && !hidden && !m_highContrastHidden )
    {
        m_view->UpdateLayersColor( contrast || m_highContrastShown,
                                   [pcbSettings]( int aViewLayer )
                                   {
                                       return !pcbSettings->IsCanvasFadedLayer( aViewLayer );
                                   } );
    }
    else if( contrast || m_highContrastShown )
    {
        m_view->UpdateAllLayersColorAndVisibility();
    }
    else
    {
        m_view->UpdateAllLayersColor();
    }
 
    m_highContrastShown = contrast;
    m_highContrastHidden = hidden;
}
 
 
void PCB_DRAW_PANEL_GAL::SetTopLayer( PCB_LAYER_ID aLayer )
{
    m_view->ClearTopLayers();
    setDefaultLayerOrder();
    m_view->SetTopLayer( aLayer );
 
    // Layers that should always have on-top attribute enabled
    const std::vector<int> layers = {
        LAYER_VIA_THROUGH,           LAYER_VIA_BLIND,                LAYER_VIA_BURIED,
        LAYER_VIA_MICROVIA,          LAYER_VIA_HOLES,                LAYER_VIA_HOLEWALLS,
        LAYER_PAD_PLATEDHOLES,       LAYER_PAD_HOLEWALLS,            LAYER_NON_PLATEDHOLES,
        LAYER_PAD_NETNAMES,          LAYER_VIA_NETNAMES,             LAYER_SELECT_OVERLAY,
        LAYER_GP_OVERLAY,            LAYER_ROUTER_PREVIEW_SHADOW,    LAYER_ROUTER_PREVIEW_COLLISION,
        LAYER_RATSNEST,              LAYER_ANCHOR,                   LAYER_DRC_HIGHLIGHTED,
        LAYER_DRC_ERROR,             LAYER_DRC_WARNING,              LAYER_DRC_EXCLUSION,
        LAYER_MARKER_SHADOWS,        LAYER_CONFLICTS_SHADOW,         LAYER_CONSTRAINT_SHADOW
    };
 
    for( auto layer : layers )
        m_view->SetTopLayer( layer );
 
    for( int i = LAYER_UI_START; i < LAYER_UI_END; i++ )
        m_view->SetTopLayer( i );
 
    // Extra layers that are brought to the top if a F.* or B.* is selected
    const std::vector<int> frontLayers = {
        F_Cu, F_Adhes, F_Paste, F_SilkS, F_Mask, F_Fab, F_CrtYd,
        LAYER_PAD_FR_NETNAMES, NETNAMES_LAYER_INDEX( F_Cu )
    };
 
    const std::vector<int> backLayers = {
        B_Cu, B_Adhes, B_Paste, B_SilkS, B_Mask, B_Fab, B_CrtYd,
        LAYER_PAD_BK_NETNAMES, NETNAMES_LAYER_INDEX( B_Cu )
    };
 
    const std::vector<int>* extraLayers = nullptr;
 
    // Bring a few more extra layers to the top depending on the selected board side
    if( IsFrontLayer( aLayer ) )
        extraLayers = &frontLayers;
    else if( IsBackLayer( aLayer ) )
        extraLayers = &backLayers;
 
    if( extraLayers )
    {
        for( auto layer : *extraLayers )
        {
            m_view->SetTopLayer( layer );
 
            if( layer < PCB_LAYER_ID_COUNT )
            {
                m_view->SetTopLayer( ZONE_LAYER_FOR( layer ) );
                m_view->SetTopLayer( PAD_COPPER_LAYER_FOR( layer ) );
                m_view->SetTopLayer( VIA_COPPER_LAYER_FOR( layer ) );
                m_view->SetTopLayer( CLEARANCE_LAYER_FOR( layer ) );
                m_view->SetTopLayer( POINT_LAYER_FOR( layer ) );
            }
        }
 
        // Move the active layer to the top of the stack but below all the overlay layers
        if( !IsCopperLayer( aLayer ) )
        {
            m_view->SetLayerOrder( aLayer, m_view->GetLayerOrder( LAYER_MARKER_SHADOWS ) + 1 );
            m_view->SetLayerOrder( ZONE_LAYER_FOR( aLayer ),
                                   m_view->GetLayerOrder( LAYER_MARKER_SHADOWS ) + 2 );
            m_view->SetLayerOrder( POINT_LAYER_FOR( aLayer ),
                                   m_view->GetLayerOrder( LAYER_MARKER_SHADOWS ) + 3 );
 
            // Fix up pad and via netnames to be below.  This is hacky, we need a rethink
            // of layer ordering...
            m_view->SetLayerOrder( LAYER_PAD_NETNAMES,
                                   m_view->GetLayerOrder( LAYER_MARKER_SHADOWS ) + 4 );
            m_view->SetLayerOrder( LAYER_VIA_NETNAMES,
                                   m_view->GetLayerOrder( LAYER_MARKER_SHADOWS ) + 5 );
        }
    }
 
    if( IsCopperLayer( aLayer ) )
    {
        m_view->SetTopLayer( ZONE_LAYER_FOR( aLayer ) );
        m_view->SetTopLayer( PAD_COPPER_LAYER_FOR( aLayer ) );
        m_view->SetTopLayer( VIA_COPPER_LAYER_FOR( aLayer ) );
        m_view->SetTopLayer( CLEARANCE_LAYER_FOR( aLayer ) );
 
        // Display labels for copper layers on the top
        m_view->SetTopLayer( GetNetnameLayer( aLayer ) );
    }
 
    m_view->SetTopLayer( POINT_LAYER_FOR( aLayer ) );
    m_view->SetTopLayer( BITMAP_LAYER_FOR( aLayer ) );
    m_view->EnableTopLayer( true );
    m_view->UpdateAllLayersOrder();
}
 
 
void PCB_DRAW_PANEL_GAL::SyncLayersVisibility( const BOARD* aBoard )
{
    PCB_LAYER_ID    activeLayer = UNDEFINED_LAYER;
    PCB_BASE_FRAME* frame = dynamic_cast<PCB_BASE_FRAME*>( GetParentEDAFrame() );
 
    // A preview canvas edits no layer, so it shows no clearance outlines
    if( frame && frame->GetCanvas() == this )
        activeLayer = frame->GetActiveLayer();
 
    SyncLayersVisibility( *m_view, aBoard, activeLayer );
}
 
 
void PCB_DRAW_PANEL_GAL::SyncLayersVisibility( KIGFX::VIEW& aView, const BOARD* aBoard, PCB_LAYER_ID aActiveLayer )
{
    // Load layer & elements visibility settings
    for( int i = 0; i < PCB_LAYER_ID_COUNT; ++i )
        aView.SetLayerVisible( i, aBoard->IsLayerVisible( PCB_LAYER_ID( i ) ) );
 
    for( GAL_LAYER_ID i = GAL_LAYER_ID_START; i < GAL_LAYER_ID_END; ++i )
        aView.SetLayerVisible( i, aBoard->IsElementVisible( i ) );
 
    // Via layers controlled by dependencies
    aView.SetLayerVisible( LAYER_VIA_MICROVIA, true );
    aView.SetLayerVisible( LAYER_VIA_BLIND, true );
    aView.SetLayerVisible( LAYER_VIA_BURIED, true );
    aView.SetLayerVisible( LAYER_VIA_THROUGH, true );
 
    // Always enable netname layers, as their visibility is controlled by layer dependencies
    for( int i = NETNAMES_LAYER_ID_START; i < NETNAMES_LAYER_ID_END; ++i )
        aView.SetLayerVisible( i, true );
 
    for( int i = LAYER_ZONE_START; i < LAYER_ZONE_END; i++ )
        aView.SetLayerVisible( i, true );
 
    for( int i = LAYER_PAD_COPPER_START; i < LAYER_PAD_COPPER_END; i++ )
        aView.SetLayerVisible( i, true );
 
    for( int i = LAYER_VIA_COPPER_START; i < LAYER_VIA_COPPER_END; i++ )
        aView.SetLayerVisible( i, true );
 
    // Holes draw their drill map symbols here. Whether anything appears is governed by the
    // documentation layer these depend on, not by this flag
    for( int i = LAYER_DRILL_SYMBOL_START; i < LAYER_DRILL_SYMBOL_END; i++ )
        aView.SetLayerVisible( i, true );
 
    // Clearance outlines show for the copper layer being edited alone. Every caller that applies a
    // board's visibility has to leave that one on, or a canvas switch or a layer preset drops the
    // outlines until the active layer next changes.
    for( int i = LAYER_CLEARANCE_START; i < LAYER_CLEARANCE_END; i++ )
        aView.SetLayerVisible( i, false );
 
    if( IsCopperLayer( aActiveLayer ) )
        aView.SetLayerVisible( CLEARANCE_LAYER_FOR( aActiveLayer ), true );
 
    for( int i = LAYER_POINT_START; i < LAYER_POINT_END; i++ )
        aView.SetLayerVisible( i, true );
 
    for( int i = LAYER_BITMAP_START; i < LAYER_BITMAP_END; i++ )
        aView.SetLayerVisible( i, true );
 
    for( int i = LAYER_UI_START; i < LAYER_UI_END; i++ )
        aView.SetLayerVisible( i, true );
 
    // Enable some layers that are GAL specific
    aView.SetLayerVisible( LAYER_PAD_PLATEDHOLES, true );
    aView.SetLayerVisible( LAYER_NON_PLATEDHOLES, true );
    aView.SetLayerVisible( LAYER_PAD_HOLEWALLS, true );
    aView.SetLayerVisible( LAYER_VIA_HOLES, true );
    aView.SetLayerVisible( LAYER_VIA_HOLEWALLS, true );
    aView.SetLayerVisible( LAYER_GP_OVERLAY, true );
    aView.SetLayerVisible( LAYER_SELECT_OVERLAY, true );
    aView.SetLayerVisible( LAYER_RATSNEST, true );
    aView.SetLayerVisible( LAYER_MARKER_SHADOWS, true );
    aView.SetLayerVisible( LAYER_DRC_HIGHLIGHTED, true );
}
 
 
void PCB_DRAW_PANEL_GAL::GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame,
                                          std::vector<MSG_PANEL_ITEM>& aList )
{
    BOARD*        board = static_cast<PCB_BASE_FRAME*>( GetParentEDAFrame() )->GetBoard();
    int           padCount = 0;
    int           viaCount = 0;
    int           trackSegmentCount = 0;
    std::set<int> netCodes;
    int           unconnected = (int) board->GetConnectivity()->GetUnconnectedCount( true );
 
    for( PCB_TRACK* item : board->Tracks() )
    {
        if( item->Type() == PCB_VIA_T )
            viaCount++;
        else
            trackSegmentCount++;
 
        if( item->GetNetCode() > 0 )
            netCodes.insert( item->GetNetCode() );
    }
 
    for( FOOTPRINT* footprint : board->Footprints() )
    {
        for( PAD* pad : footprint->Pads() )
        {
            padCount++;
 
            if( pad->GetNetCode() > 0 )
                netCodes.insert( pad->GetNetCode() );
        }
    }
 
    aList.emplace_back( _( "Pads" ), fmt::format( "{}", padCount ) );
    aList.emplace_back( _( "Vias" ), fmt::format( "{}", viaCount ) );
    aList.emplace_back( _( "Track Segments" ), fmt::format( "{}", trackSegmentCount ) );
    aList.emplace_back( _( "Nets" ), fmt::format( "{}", (int) netCodes.size() ) );
    aList.emplace_back( _( "Unrouted" ), fmt::format( "{}", unconnected ) );
}
 
 
void PCB_DRAW_PANEL_GAL::OnShow()
{
    PCB_BASE_FRAME* frame = nullptr;
 
    if( !IsDialogPreview() )
        frame = dynamic_cast<PCB_BASE_FRAME*>( GetParentEDAFrame() );
 
    EDA_DRAW_PANEL_GAL::OnShow();
 
    if( frame )
    {
        SetTopLayer( frame->GetActiveLayer() );
 
        KIGFX::PCB_PAINTER* painter = static_cast<KIGFX::PCB_PAINTER*>( m_view->GetPainter() );
        KIGFX::PCB_RENDER_SETTINGS* settings = painter->GetSettings();
 
        settings->LoadDisplayOptions( frame->GetDisplayOptions() );
        settings->m_ForceShowFieldsWhenFPSelected = frame->GetPcbNewSettings()->m_Display.m_ForceShowFieldsWhenFPSelected;
    }
}
 
 
void ApplyPcbGalLayerOrder( KIGFX::VIEW* aView )
{
    for( int i = 0; (unsigned) i < sizeof( GAL_LAYER_ORDER ) / sizeof( int ); ++i )
    {
        int layer = GAL_LAYER_ORDER[i];
        wxASSERT( layer < KIGFX::VIEW::VIEW_MAX_LAYERS );
 
        // MW: Gross hack to make SetTopLayer bring the correct bitmap layer to
        // the top of the other bitmaps, but still below all the other layers
        if( layer >= LAYER_BITMAP_START && layer < LAYER_BITMAP_END )
            aView->SetLayerOrder( layer, i - KIGFX::VIEW::TOP_LAYER_MODIFIER, false );
        else
            aView->SetLayerOrder( layer, i, false );
    }
 
    // Drill symbol layers are not listed in the table above. Each one draws with the
    // documentation layer whose map owns it
    for( int i = 0; i < PCB_LAYER_ID_COUNT; ++i )
    {
        const PCB_LAYER_ID boardLayer = static_cast<PCB_LAYER_ID>( i );
 
        aView->SetLayerOrder( DRILL_SYMBOL_LAYER_FOR( boardLayer ),
                              aView->GetLayerOrder( boardLayer ), false );
    }
 
    aView->SortOrderedLayers();
}
 
 
void PCB_DRAW_PANEL_GAL::setDefaultLayerOrder()
{
    ApplyPcbGalLayerOrder( m_view );
}
 
 
bool PCB_DRAW_PANEL_GAL::SwitchBackend( GAL_TYPE aGalType )
{
    bool rv = EDA_DRAW_PANEL_GAL::SwitchBackend( aGalType );
    setDefaultLayerDeps();
    m_gal->SetWorldUnitLength( 1e-9 /* 1 nm */ / 0.0254 /* 1 inch in meters */ );
 
    // Whether the ratsnest is split depends on the canvas
    if( m_ratsnest && ( m_localRatsnest != nullptr ) != m_gal->HasRetainedScene() )
    {
        std::shared_ptr<CONNECTIVITY_DATA> connectivity = m_ratsnest->GetConnectivity();
 
        m_view->Remove( m_ratsnest.get() );
 
        if( m_localRatsnest )
            m_view->Remove( m_localRatsnest.get() );
 
        addRatsnest( connectivity );
    }
 
    return rv;
}
 
 
void PCB_DRAW_PANEL_GAL::RedrawRatsnest()
{
    if( m_ratsnest )
        m_view->Update( m_ratsnest.get() );
 
    if( m_localRatsnest )
        m_view->Update( m_localRatsnest.get() );
}
 
 
BOX2I PCB_DRAW_PANEL_GAL::GetDefaultViewBBox() const
{
    if( m_drawingSheet && m_view->IsLayerVisible( LAYER_DRAWINGSHEET ) )
        return m_drawingSheet->ViewBBox();
 
    return BOX2I();
}
 
 
void PCB_DRAW_PANEL_GAL::setDefaultLayerDeps()
{
    // Cairo keeps cached groups in screen coordinates, so caching makes no sense for it
    auto target = IsAccelerated( m_backend ) ? KIGFX::TARGET_CACHED : KIGFX::TARGET_NONCACHED;
 
    // Anything not cached is composited above the whole retained scene, which would put reference
    // images over the zones
    const KIGFX::RENDER_TARGET bitmapTarget = ( m_gal && m_gal->HasRetainedScene() ) ? KIGFX::TARGET_CACHED
                                                                                      : KIGFX::TARGET_NONCACHED;
 
    for( int i = 0; i < KIGFX::VIEW::VIEW_MAX_LAYERS; i++ )
        m_view->SetLayerTarget( i, target );
 
    // A map's offset changes while its hole owners do not. Rebuilding every drilled pad and
    // via on each mouse event makes dragging scale with the board's hole count.
    for( int i = LAYER_DRILL_SYMBOL_START; i < LAYER_DRILL_SYMBOL_END; ++i )
        m_view->SetLayerTarget( i, KIGFX::TARGET_NONCACHED );
 
    for( int i = 0; (unsigned) i < sizeof( GAL_LAYER_ORDER ) / sizeof( int ); ++i )
    {
        int layer = GAL_LAYER_ORDER[i];
        wxASSERT( layer < KIGFX::VIEW::VIEW_MAX_LAYERS );
 
        // Set layer display dependencies & targets
        if( IsCopperLayer( layer ) )
        {
            m_view->SetRequired( ZONE_LAYER_FOR( layer ), layer );
            m_view->SetRequired( PAD_COPPER_LAYER_FOR( layer ), layer );
            m_view->SetRequired( VIA_COPPER_LAYER_FOR( layer ), layer );
            m_view->SetRequired( CLEARANCE_LAYER_FOR( layer ), layer );
            m_view->SetRequired( POINT_LAYER_FOR( layer ), layer );
 
            m_view->SetRequired( BITMAP_LAYER_FOR( layer ), layer );
            m_view->SetLayerTarget( BITMAP_LAYER_FOR( layer ), bitmapTarget );
            m_view->SetRequired( GetNetnameLayer( layer ), layer );
            m_view->SetRequired( DRILL_SYMBOL_LAYER_FOR( layer ), layer );
        }
        else if( IsNonCopperLayer( layer ) )
        {
            m_view->SetRequired( POINT_LAYER_FOR( layer ), layer );
            m_view->SetRequired( ZONE_LAYER_FOR( layer ), layer );
            m_view->SetLayerTarget( BITMAP_LAYER_FOR( layer ), bitmapTarget );
            m_view->SetRequired( BITMAP_LAYER_FOR( layer ), layer );
            m_view->SetRequired( DRILL_SYMBOL_LAYER_FOR( layer ), layer );
        }
        else if( IsNetnameLayer( layer ) )
        {
            m_view->SetLayerDisplayOnly( layer );
        }
    }
 
    m_view->SetLayerTarget( LAYER_ANCHOR, KIGFX::TARGET_NONCACHED );
    m_view->SetLayerDisplayOnly( LAYER_ANCHOR );
 
    // Use TARGET_OVERLAY for LAYER_CONFLICTS_SHADOW, it is for items
    // that may change while the view stays the same.
    m_view->SetLayerTarget( LAYER_CONFLICTS_SHADOW, KIGFX::TARGET_OVERLAY );
 
    // Constraint shadow drawn under item like locked-item shadow
    // kept on cached target not overlay and re-cached on set change
    m_view->SetLayerDisplayOnly( LAYER_LOCKED_ITEM_SHADOW );
    m_view->SetLayerDisplayOnly( LAYER_CONFLICTS_SHADOW );
    m_view->SetLayerDisplayOnly( LAYER_CONSTRAINT_SHADOW );
    m_view->SetLayerDisplayOnly( LAYER_BOARD_OUTLINE_AREA );
 
    // Some more required layers settings
    m_view->SetRequired( LAYER_PAD_NETNAMES, LAYER_PADS );
 
    // Holes can be independent of their host objects (cf: printing drill marks)
    m_view->SetRequired( LAYER_VIA_HOLES, LAYER_VIAS );
    m_view->SetRequired( LAYER_VIA_HOLEWALLS, LAYER_VIAS );
    m_view->SetRequired( LAYER_PAD_PLATEDHOLES, LAYER_PADS );
    m_view->SetRequired( LAYER_PAD_HOLEWALLS, LAYER_PADS );
    m_view->SetRequired( LAYER_NON_PLATEDHOLES, LAYER_PADS );
 
    // Via visibility
    m_view->SetRequired( LAYER_VIA_MICROVIA, LAYER_VIAS );
    m_view->SetRequired( LAYER_VIA_BLIND, LAYER_VIAS );
    m_view->SetRequired( LAYER_VIA_BURIED, LAYER_VIAS );
    m_view->SetRequired( LAYER_VIA_THROUGH, LAYER_VIAS );
    m_view->SetRequired( LAYER_VIA_NETNAMES, LAYER_VIAS );
 
    m_view->SetLayerTarget( LAYER_SELECT_OVERLAY, KIGFX::TARGET_OVERLAY );
    m_view->SetLayerDisplayOnly( LAYER_SELECT_OVERLAY ) ;
    m_view->SetLayerTarget( LAYER_GP_OVERLAY, KIGFX::TARGET_OVERLAY );
    m_view->SetLayerDisplayOnly( LAYER_GP_OVERLAY ) ;
    // Non-cached so the clearance halo lands behind copper on every backend
    m_view->SetLayerTarget( LAYER_ROUTER_PREVIEW_SHADOW, KIGFX::TARGET_NONCACHED );
    m_view->SetLayerDisplayOnly( LAYER_ROUTER_PREVIEW_SHADOW );
    m_view->SetLayerTarget( LAYER_ROUTER_PREVIEW_COLLISION, KIGFX::TARGET_OVERLAY );
    m_view->SetLayerDisplayOnly( LAYER_ROUTER_PREVIEW_COLLISION );
 
    // A retained scene caches the board's ratsnest, see addRatsnest()
    const bool cachedRatsnest = m_gal && m_gal->HasRetainedScene();
 
    m_view->SetLayerTarget( LAYER_RATSNEST, cachedRatsnest ? KIGFX::TARGET_CACHED : KIGFX::TARGET_OVERLAY );
    m_view->SetLayerDisplayOnly( LAYER_RATSNEST );
 
    if( cachedRatsnest )
    {
        m_view->SetRequired( RATSNEST_VIEW_ITEM::LOCAL_LAYER, LAYER_RATSNEST );
 
        // Blended as on the legacy overlay
        m_gal->SetSceneLayerOverlayAlpha( LAYER_RATSNEST );
    }
 
    m_view->SetLayerTarget( LAYER_DRC_ERROR, KIGFX::TARGET_OVERLAY );
    m_view->SetLayerTarget( LAYER_DRC_WARNING, KIGFX::TARGET_OVERLAY );
    m_view->SetLayerTarget( LAYER_DRC_EXCLUSION, KIGFX::TARGET_OVERLAY );
    m_view->SetLayerTarget( LAYER_DRC_HIGHLIGHTED, KIGFX::TARGET_OVERLAY );
    m_view->SetLayerTarget( LAYER_MARKER_SHADOWS, KIGFX::TARGET_OVERLAY );
    m_view->SetLayerDisplayOnly( LAYER_MARKER_SHADOWS );
 
    // A retained scene keeps the sheet with the board rather than redrawing it on every pan
    m_view->SetLayerTarget( LAYER_DRAWINGSHEET, ( m_gal && m_gal->HasRetainedScene() ) ? KIGFX::TARGET_CACHED
                                                                                        : KIGFX::TARGET_NONCACHED );
    m_view->SetLayerDisplayOnly( LAYER_DRAWINGSHEET ) ; // drawing sheet can't be selected
    m_view->SetLayerDisplayOnly( LAYER_GRID );          // grid can't be selected
 
    for( int i = LAYER_UI_START; i < LAYER_UI_END; ++i )
    {
        m_view->SetLayerTarget( i, KIGFX::TARGET_OVERLAY );
        m_view->SetLayerDisplayOnly( i );
    }
 
    updateCanvasFadedLayers();
}
 
 
void PCB_DRAW_PANEL_GAL::updateCanvasFadedLayers()
{
    auto* settings = static_cast<KIGFX::PCB_RENDER_SETTINGS*>( m_view->GetPainter()->GetSettings() );
    std::bitset<MAX_LAYERS_FOR_VIEW> layers;
 
    if( m_gal && m_gal->HasRetainedScene() )
    {
        for( int layer = 0; layer < PCB_LAYER_ID_COUNT; ++layer )
        {
            for( int viewLayer : { layer, static_cast<int>( ZONE_LAYER_FOR( layer ) ),
                                   static_cast<int>( PAD_COPPER_LAYER_FOR( layer ) ),
                                   static_cast<int>( VIA_COPPER_LAYER_FOR( layer ) ),
                                   static_cast<int>( CLEARANCE_LAYER_FOR( layer ) ) } )
            {
                if( m_view->IsCached( viewLayer ) )
                    layers.set( viewLayer );
            }
        }
    }
 
    settings->SetCanvasFadedLayers( layers );
}
 
 
KIGFX::PCB_VIEW* PCB_DRAW_PANEL_GAL::GetView() const
{
    return static_cast<KIGFX::PCB_VIEW*>( m_view );
}