drc_item.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2007 Dick Hollenbeck, [email protected]
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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 "wx/html/m_templ.h"
#include "wx/html/styleparams.h"
#include "core/kicad_algo.h"
#include <algorithm>
#include <drc/drc_item.h>
#include <drc/drc_rule.h>
#include <board.h>
#include <pad.h>
#include <pcb_marker.h>
#include <i18n_utility.h>
 
 
// These, being statically-defined, require specialized I18N handling.
// We don't translate on initialization and instead do it in the getters.
 
// NOTE: Avoid changing the settings key for a DRC item after it has been created
 
 
DRC_ITEM DRC_ITEM::heading_electrical( 0, _HKI( "Electrical" ), "" );
DRC_ITEM DRC_ITEM::heading_DFM( 0, _HKI( "Design for Manufacturing" ), "" );
DRC_ITEM DRC_ITEM::heading_schematic_parity( 0, _HKI( "Schematic Parity" ), "" );
DRC_ITEM DRC_ITEM::heading_signal_integrity( 0, _HKI( "Signal Integrity" ), "" );
DRC_ITEM DRC_ITEM::heading_readability( 0, _HKI( "Readability" ), "" );
DRC_ITEM DRC_ITEM::heading_misc( 0, _HKI( "Miscellaneous" ), "" );
DRC_ITEM DRC_ITEM::heading_internal( 0, "", "" );
DRC_ITEM DRC_ITEM::heading_deprecated( 0, "", "" );
 
DRC_ITEM DRC_ITEM::unconnectedItems( DRCE_UNCONNECTED_ITEMS,
        _HKI( "Missing connection between items" ),
        wxT( "unconnected_items" ) );
 
DRC_ITEM DRC_ITEM::shortingItems( DRCE_SHORTING_ITEMS,
        _HKI( "Items shorting two nets" ),
        wxT( "shorting_items" ) );
 
DRC_ITEM DRC_ITEM::itemsNotAllowed( DRCE_ALLOWED_ITEMS,
        _HKI( "Items not allowed" ),
        wxT( "items_not_allowed" ) );
 
DRC_ITEM DRC_ITEM::textOnEdgeCuts( DRCE_TEXT_ON_EDGECUTS, _HKI( "Text or graphic on Edge.Cuts layer" ),
                                   wxT( "text_on_edge_cuts" ) );
 
DRC_ITEM DRC_ITEM::clearance( DRCE_CLEARANCE,
        _HKI( "Clearance violation" ),
        wxT( "clearance" ) );
 
DRC_ITEM DRC_ITEM::creepage( DRCE_CREEPAGE,
        _HKI( "Creepage violation" ),
        wxT( "creepage" ) );
 
DRC_ITEM DRC_ITEM::tracksCrossing( DRCE_TRACKS_CROSSING,
        _HKI( "Tracks crossing" ),
        wxT( "tracks_crossing" ) );
 
DRC_ITEM DRC_ITEM::edgeClearance( DRCE_EDGE_CLEARANCE,
        _HKI( "Board edge clearance violation" ),
        wxT( "copper_edge_clearance" ) );
 
DRC_ITEM DRC_ITEM::isolatedCopper( DRCE_ISOLATED_COPPER,
        _HKI( "Isolated copper fill" ),
        wxT( "isolated_copper" ) );
 
DRC_ITEM DRC_ITEM::starvedThermal( DRCE_STARVED_THERMAL,
        _HKI( "Thermal relief connection to zone incomplete" ),
        wxT( "starved_thermal" ) );
 
DRC_ITEM DRC_ITEM::viaDangling( DRCE_DANGLING_VIA,
        _HKI( "Via is not connected or connected on only one layer" ),
        wxT( "via_dangling" ) );
 
DRC_ITEM DRC_ITEM::trackDangling( DRCE_DANGLING_TRACK,
        _HKI( "Track has unconnected end" ),
        wxT( "track_dangling" ) );
 
DRC_ITEM DRC_ITEM::holeClearance( DRCE_HOLE_CLEARANCE,
        _HKI( "Hole clearance violation" ),
        wxT( "hole_clearance" ) );
 
DRC_ITEM DRC_ITEM::holeNearHole( DRCE_DRILLED_HOLES_TOO_CLOSE,
        _HKI( "Drilled hole too close to other hole" ),
        wxT( "hole_to_hole" ) );
 
DRC_ITEM DRC_ITEM::holesCoLocated( DRCE_DRILLED_HOLES_COLOCATED,
        _HKI( "Drilled holes co-located" ),
        wxT( "holes_co_located" ) );
 
DRC_ITEM DRC_ITEM::connectionWidth( DRCE_CONNECTION_WIDTH,
        _HKI( "Copper connection too narrow" ),
        wxT( "connection_width" ) );
 
DRC_ITEM DRC_ITEM::trackWidth( DRCE_TRACK_WIDTH,
        _HKI( "Track width" ),
        wxT( "track_width" ) );
 
DRC_ITEM DRC_ITEM::trackAngle( DRCE_TRACK_ANGLE,
        _HKI( "Track angle" ),
        wxT( "track_angle" ) );
 
DRC_ITEM DRC_ITEM::trackSegmentLength( DRCE_TRACK_SEGMENT_LENGTH,
        _HKI( "Track segment length" ),
        wxT( "track_segment_length" ) );
 
DRC_ITEM DRC_ITEM::annularWidth( DRCE_ANNULAR_WIDTH,
        _HKI( "Annular width" ),
        wxT( "annular_width" ) );
 
DRC_ITEM DRC_ITEM::drillTooSmall( DRCE_DRILL_OUT_OF_RANGE,
        _HKI( "Hole size out of range" ),
        wxT( "drill_out_of_range" ) );
 
DRC_ITEM DRC_ITEM::viaDiameter( DRCE_VIA_DIAMETER,
        _HKI( "Via diameter" ),
        wxT( "via_diameter" ) );
 
DRC_ITEM DRC_ITEM::padstack( DRCE_PADSTACK,
        _HKI( "Padstack is questionable" ),
        wxT( "padstack" ) );
 
DRC_ITEM DRC_ITEM::padstackInvalid( DRCE_PADSTACK_INVALID,
        _HKI( "Padstack is not valid" ),
        wxT( "padstack_invalid" ) );
 
DRC_ITEM DRC_ITEM::microviaDrillTooSmall( DRCE_MICROVIA_DRILL_OUT_OF_RANGE,
        _HKI( "Micro via hole size out of range" ),
        wxT( "microvia_drill_out_of_range" ) );
 
DRC_ITEM DRC_ITEM::malformedMicroviaStackSpan( DRCE_MALFORMED_MICROVIA_STACK_SPAN,
                                               _HKI( "Microvia stack has malformed span" ),
                                               wxT( "malformed_microvia_stack_span" ) );
 
DRC_ITEM DRC_ITEM::microviaStackNotFilled( DRCE_MICROVIA_STACK_NOT_FILLED, _HKI( "Microvia under microvia not filled" ),
                                           wxT( "microvia_stack_not_filled" ) );
 
DRC_ITEM DRC_ITEM::microviaStackDepth( DRCE_MICROVIA_STACK_DEPTH, _HKI( "Microvia stack too deep" ),
                                       wxT( "microvia_stack_depth" ) );
 
DRC_ITEM DRC_ITEM::microviaAspectRatio( DRCE_MICROVIA_ASPECT_RATIO, _HKI( "Microvia too deep for its diameter" ),
                                        wxT( "microvia_aspect_ratio" ) );
 
DRC_ITEM DRC_ITEM::microviaCrossesCore( DRCE_MICROVIA_CROSSES_CORE, _HKI( "Microvia crosses core material" ),
                                        wxT( "microvia_crosses_core" ) );
 
DRC_ITEM DRC_ITEM::courtyardsOverlap( DRCE_OVERLAPPING_FOOTPRINTS,
        _HKI( "Courtyards overlap" ),
        wxT( "courtyards_overlap" ) );
 
DRC_ITEM DRC_ITEM::missingCourtyard( DRCE_MISSING_COURTYARD,
        _HKI( "Footprint has no courtyard defined" ),
        wxT( "missing_courtyard" ) );
 
DRC_ITEM DRC_ITEM::malformedCourtyard( DRCE_MALFORMED_COURTYARD,
        _HKI( "Footprint has malformed courtyard" ),
        wxT( "malformed_courtyard" ) );
 
DRC_ITEM DRC_ITEM::pthInsideCourtyard( DRCE_PTH_IN_COURTYARD,
        _HKI( "PTH inside courtyard" ),
        wxT( "pth_inside_courtyard" ) );
 
DRC_ITEM DRC_ITEM::npthInsideCourtyard( DRCE_NPTH_IN_COURTYARD,
        _HKI( "NPTH inside courtyard" ),
        wxT( "npth_inside_courtyard" ) );
 
DRC_ITEM DRC_ITEM::itemOnDisabledLayer( DRCE_DISABLED_LAYER_ITEM,
        _HKI( "Item on a disabled copper layer" ),
        wxT( "item_on_disabled_layer" ) );
 
DRC_ITEM DRC_ITEM::invalidOutline( DRCE_INVALID_OUTLINE,
        _HKI( "Board has malformed outline" ),
        wxT( "invalid_outline" ) );
 
DRC_ITEM DRC_ITEM::duplicateFootprints( DRCE_DUPLICATE_FOOTPRINT,
        _HKI( "Duplicate footprints" ),
        wxT( "duplicate_footprints" ) );
 
DRC_ITEM DRC_ITEM::missingFootprint( DRCE_MISSING_FOOTPRINT,
        _HKI( "Missing footprint" ),
        wxT( "missing_footprint" ) );
 
DRC_ITEM DRC_ITEM::extraFootprint( DRCE_EXTRA_FOOTPRINT,
        _HKI( "Extra footprint" ),
        wxT( "extra_footprint" ) );
 
DRC_ITEM DRC_ITEM::netConflict( DRCE_NET_CONFLICT,
        _HKI( "Pad net doesn't match schematic" ),
        wxT( "net_conflict" ) );
 
DRC_ITEM DRC_ITEM::schematicParity( DRCE_SCHEMATIC_PARITY,
        _HKI( "Footprint attributes don't match symbol" ),
        wxT( "footprint_symbol_mismatch" ) );
 
DRC_ITEM DRC_ITEM::footprintFilters( DRCE_FOOTPRINT_FILTERS,
        _HKI( "Footprint doesn't match symbol's footprint filters" ),
        wxT( "footprint_filters_mismatch" ) );
 
DRC_ITEM DRC_ITEM::schematicFieldsParity( DRCE_SCHEMATIC_FIELDS_PARITY,
        _HKI( "Footprint field does not match symbol field" ),
        wxT( "footprint_symbol_field_mismatch" ) );
 
DRC_ITEM DRC_ITEM::viaStitchOverlap( DRCE_VIA_STITCH_OVERLAP,
        _HKI( "Via-stitching zones overlap for same net" ),
        wxT( "via_stitch_overlap" ) );
 
DRC_ITEM DRC_ITEM::libFootprintIssues( DRCE_LIB_FOOTPRINT_ISSUES,
        _HKI( "Footprint not found in libraries" ),
        wxT( "lib_footprint_issues" ) );
 
DRC_ITEM DRC_ITEM::libFootprintMismatch( DRCE_LIB_FOOTPRINT_MISMATCH,
        _HKI( "Footprint doesn't match copy in library" ),
        wxT( "lib_footprint_mismatch" ) );
 
DRC_ITEM DRC_ITEM::unresolvedVariable( DRCE_UNRESOLVED_VARIABLE,
        _HKI( "Unresolved text variable" ),
        wxT( "unresolved_variable" ) );
 
DRC_ITEM DRC_ITEM::assertionFailure( DRCE_ASSERTION_FAILURE,
        _HKI( "Assertion failure" ),
        wxT( "assertion_failure" ) );
 
DRC_ITEM DRC_ITEM::genericWarning( DRCE_GENERIC_WARNING,
        _HKI( "Warning" ),
        wxT( "generic_warning" ) );
 
DRC_ITEM DRC_ITEM::genericError( DRCE_GENERIC_ERROR,
        _HKI( "Error" ),
        wxT( "generic_error" ) );
 
DRC_ITEM DRC_ITEM::copperSliver( DRCE_COPPER_SLIVER,
        _HKI( "Copper sliver" ),
        wxT( "copper_sliver" ) );
 
DRC_ITEM DRC_ITEM::solderMaskBridge( DRCE_SOLDERMASK_BRIDGE,
        _HKI( "Solder mask aperture bridges items with different nets" ),
        wxT( "solder_mask_bridge" ) );
 
DRC_ITEM DRC_ITEM::silkMaskClearance( DRCE_SILK_MASK_CLEARANCE,
        _HKI( "Silkscreen clipped by solder mask" ),
        wxT( "silk_over_copper" ) );
 
DRC_ITEM DRC_ITEM::silkEdgeClearance( DRCE_SILK_EDGE_CLEARANCE,
        _HKI( "Silkscreen clipped by board edge" ),
        wxT( "silk_edge_clearance" ) );
 
DRC_ITEM DRC_ITEM::silkClearance( DRCE_SILK_CLEARANCE,
        _HKI( "Silkscreen clearance" ),
        wxT( "silk_overlap" ) );
 
DRC_ITEM DRC_ITEM::textHeightOutOfRange( DRCE_TEXT_HEIGHT,
        _HKI( "Text height out of range" ),
        wxT( "text_height" ) );
 
DRC_ITEM DRC_ITEM::textThicknessOutOfRange( DRCE_TEXT_THICKNESS,
        _HKI( "Text thickness out of range" ),
        wxT( "text_thickness" ) );
 
DRC_ITEM DRC_ITEM::lengthOutOfRange( DRCE_LENGTH_OUT_OF_RANGE,
        _HKI( "Track length out of range" ),
        wxT( "length_out_of_range" ) );
 
DRC_ITEM DRC_ITEM::netChainStubTooLong( DRCE_NET_CHAIN_STUB_TOO_LONG,
        _HKI( "Net chain stub length out of range" ),
        wxT( "net_chain_stub_length" ) );
 
DRC_ITEM DRC_ITEM::netChainReturnPathBreak( DRCE_NET_CHAIN_RETURN_PATH_BREAK,
        _HKI( "Net chain routed without continuous copper on the required reference layer" ),
        wxT( "net_chain_return_path" ) );
 
DRC_ITEM DRC_ITEM::netChainTuningProfiles( DRCE_NET_CHAIN_TUNING_PROFILES,
                                           _HKI( "Net chain nets do not have consistent tuning profile assignment" ),
                                           wxT( "net_chain_tuning_profiles" ) );
 
DRC_ITEM DRC_ITEM::skewOutOfRange( DRCE_SKEW_OUT_OF_RANGE,
        _HKI( "Skew between tracks out of range" ),
        wxT( "skew_out_of_range" ) );
 
// Note: this used to only check against a max value, hence the settings key too_many_vias
DRC_ITEM DRC_ITEM::viaCountOutOfRange( DRCE_VIA_COUNT_OUT_OF_RANGE,
        _HKI( "Too many or too few vias on a connection" ),
        wxT( "too_many_vias" ) );
 
DRC_ITEM DRC_ITEM::diffPairGapOutOfRange( DRCE_DP_GAP_OUT_OF_RANGE,
        _HKI( "Differential pair gap out of range" ),
        wxT( "diff_pair_gap_out_of_range" ) );
 
DRC_ITEM DRC_ITEM::diffPairUncoupledLengthTooLong( DRCE_DP_UNCOUPLED_LENGTH_TOO_LONG,
        _HKI( "Differential uncoupled length too long" ),
        wxT( "diff_pair_uncoupled_length_too_long" ) );
 
DRC_ITEM DRC_ITEM::footprint( DRCE_FOOTPRINT,
        _HKI( "Footprint is not valid" ),
        wxT( "footprint" ) );
 
DRC_ITEM DRC_ITEM::footprintTypeMismatch( DRCE_FOOTPRINT_TYPE_MISMATCH,
        _HKI( "Footprint component type doesn't match footprint pads" ),
        wxT( "footprint_type_mismatch" ) );
 
DRC_ITEM DRC_ITEM::footprintTHPadhasNoHole( DRCE_PAD_TH_WITH_NO_HOLE,
        _HKI( "Through hole pad has no hole" ),
        wxT( "through_hole_pad_without_hole" ) );
 
DRC_ITEM DRC_ITEM::footprintScaledWithPads( DRCE_FOOTPRINT_SCALED_WITH_PADS,
        _HKI( "Footprint with pads is scaled (physical part size unchanged)" ),
        wxT( "footprint_scaled_with_pads" ) );
 
DRC_ITEM DRC_ITEM::mirroredTextOnFrontLayer( DRCE_MIRRORED_TEXT_ON_FRONT_LAYER,
        _HKI( "Mirrored text on front layer" ),
        wxT( "mirrored_text_on_front_layer" ) );
 
DRC_ITEM DRC_ITEM::unMirroredTextOnBackLayer( DRCE_UNMIRRORED_TEXT_ON_BACK_LAYER,
        _HKI( "Non-Mirrored text on back layer" ),
        wxT( "nonmirrored_text_on_back_layer" ) );
 
DRC_ITEM DRC_ITEM::missingTuningProfile( DRCE_MISSING_TUNING_PROFILE,
        _HKI( "Missing tuning profile" ),
        wxT( "missing_tuning_profile" ) );
 
DRC_ITEM DRC_ITEM::tuningProfileImplicitRules( DRCE_TUNING_PROFILE_IMPLICIT_RULES,
        _HKI( "Tuning profile track geometries" ),
        wxT( "tuning_profile_track_geometries" ) );
 
DRC_ITEM DRC_ITEM::trackOnPostMachinedLayer( DRCE_TRACK_ON_POST_MACHINED_LAYER,
        _HKI( "Track connected to post-machined or backdrilled layer" ),
        wxT( "track_on_post_machined_layer" ) );
 
DRC_ITEM DRC_ITEM::trackNotCenteredOnVia( DRCE_TRACK_NOT_CENTERED_ON_VIA,
        _HKI( "Track endpoint not centered on via" ),
        wxT( "track_not_centered_on_via" ) );
 
std::vector<std::reference_wrapper<RC_ITEM>> DRC_ITEM::allItemTypes( {
        DRC_ITEM::heading_electrical,
        DRC_ITEM::shortingItems,
        DRC_ITEM::tracksCrossing,
        DRC_ITEM::clearance,
        DRC_ITEM::creepage,
        DRC_ITEM::viaDangling,
        DRC_ITEM::trackDangling,
        DRC_ITEM::starvedThermal,
 
        DRC_ITEM::heading_DFM,
        DRC_ITEM::edgeClearance,
        DRC_ITEM::holeClearance,
        DRC_ITEM::holeNearHole,
        DRC_ITEM::holesCoLocated,
        DRC_ITEM::trackWidth,
        DRC_ITEM::trackAngle,
        DRC_ITEM::trackSegmentLength,
        DRC_ITEM::annularWidth,
        DRC_ITEM::drillTooSmall,
        DRC_ITEM::microviaDrillTooSmall,
        DRC_ITEM::malformedMicroviaStackSpan,
        DRC_ITEM::microviaStackNotFilled,
        DRC_ITEM::microviaStackDepth,
        DRC_ITEM::microviaAspectRatio,
        DRC_ITEM::microviaCrossesCore,
        DRC_ITEM::viaDiameter,
        DRC_ITEM::courtyardsOverlap,
        DRC_ITEM::missingCourtyard,
        DRC_ITEM::malformedCourtyard,
        DRC_ITEM::invalidOutline,
        DRC_ITEM::copperSliver,
        DRC_ITEM::solderMaskBridge,
        DRC_ITEM::connectionWidth,
        DRC_ITEM::trackOnPostMachinedLayer,
        DRC_ITEM::trackNotCenteredOnVia,
        DRC_ITEM::viaStitchOverlap,
        DRC_ITEM::tuningProfileImplicitRules,
 
        DRC_ITEM::heading_schematic_parity,
        DRC_ITEM::duplicateFootprints,
        DRC_ITEM::missingFootprint,
        DRC_ITEM::extraFootprint,
        DRC_ITEM::schematicParity,
        DRC_ITEM::schematicFieldsParity,
        DRC_ITEM::footprintFilters,
        DRC_ITEM::netConflict,
        DRC_ITEM::unconnectedItems,
 
        DRC_ITEM::heading_signal_integrity,
        DRC_ITEM::lengthOutOfRange,
        DRC_ITEM::netChainStubTooLong,
        DRC_ITEM::netChainReturnPathBreak,
        DRC_ITEM::netChainTuningProfiles,
        DRC_ITEM::skewOutOfRange,
        DRC_ITEM::viaCountOutOfRange,
        DRC_ITEM::diffPairGapOutOfRange,
        DRC_ITEM::diffPairUncoupledLengthTooLong,
 
        DRC_ITEM::heading_readability,
        DRC_ITEM::silkClearance,
        DRC_ITEM::silkMaskClearance,
        DRC_ITEM::silkEdgeClearance,
        DRC_ITEM::textHeightOutOfRange,
        DRC_ITEM::textThicknessOutOfRange,
        DRC_ITEM::mirroredTextOnFrontLayer,
        DRC_ITEM::unMirroredTextOnBackLayer,
 
        DRC_ITEM::heading_misc,
        DRC_ITEM::itemsNotAllowed,
        DRC_ITEM::textOnEdgeCuts,
        DRC_ITEM::isolatedCopper,
        DRC_ITEM::footprint,
        DRC_ITEM::padstack,
        DRC_ITEM::pthInsideCourtyard,
        DRC_ITEM::npthInsideCourtyard,
        DRC_ITEM::itemOnDisabledLayer,
        DRC_ITEM::unresolvedVariable,
        DRC_ITEM::assertionFailure,
        DRC_ITEM::footprintTypeMismatch,
        DRC_ITEM::libFootprintIssues,
        DRC_ITEM::libFootprintMismatch,
        DRC_ITEM::footprintTHPadhasNoHole,
        DRC_ITEM::footprintScaledWithPads,
        DRC_ITEM::missingTuningProfile,
 
        // DRC_ITEM types with no user-editable severities
        // NOTE: this MUST be the last grouping in the list!
        DRC_ITEM::heading_internal,
        DRC_ITEM::padstackInvalid,
        DRC_ITEM::genericError,
        DRC_ITEM::genericWarning,
} );
 
 
std::shared_ptr<DRC_ITEM> DRC_ITEM::Create( int aErrorCode )
{
    switch( aErrorCode )
    {
    case DRCE_UNCONNECTED_ITEMS:             return std::make_shared<DRC_ITEM>( unconnectedItems );
    case DRCE_SHORTING_ITEMS:                return std::make_shared<DRC_ITEM>( shortingItems );
    case DRCE_ALLOWED_ITEMS:                 return std::make_shared<DRC_ITEM>( itemsNotAllowed );
    case DRCE_TEXT_ON_EDGECUTS:              return std::make_shared<DRC_ITEM>( textOnEdgeCuts );
    case DRCE_CLEARANCE:                     return std::make_shared<DRC_ITEM>( clearance );
    case DRCE_CREEPAGE:                      return std::make_shared<DRC_ITEM>( creepage );
    case DRCE_TRACKS_CROSSING:               return std::make_shared<DRC_ITEM>( tracksCrossing );
    case DRCE_EDGE_CLEARANCE:                return std::make_shared<DRC_ITEM>( edgeClearance );
    case DRCE_ISOLATED_COPPER:               return std::make_shared<DRC_ITEM>( isolatedCopper );
    case DRCE_STARVED_THERMAL:               return std::make_shared<DRC_ITEM>( starvedThermal );
    case DRCE_DANGLING_VIA:                  return std::make_shared<DRC_ITEM>( viaDangling );
    case DRCE_DANGLING_TRACK:                return std::make_shared<DRC_ITEM>( trackDangling );
    case DRCE_DRILLED_HOLES_TOO_CLOSE:       return std::make_shared<DRC_ITEM>( holeNearHole );
    case DRCE_DRILLED_HOLES_COLOCATED:       return std::make_shared<DRC_ITEM>( holesCoLocated );
    case DRCE_HOLE_CLEARANCE:                return std::make_shared<DRC_ITEM>( holeClearance );
    case DRCE_CONNECTION_WIDTH:              return std::make_shared<DRC_ITEM>( connectionWidth );
    case DRCE_TRACK_WIDTH:                   return std::make_shared<DRC_ITEM>( trackWidth );
    case DRCE_TRACK_ANGLE:                   return std::make_shared<DRC_ITEM>( trackAngle );
    case DRCE_TRACK_SEGMENT_LENGTH:          return std::make_shared<DRC_ITEM>( trackSegmentLength );
    case DRCE_ANNULAR_WIDTH:                 return std::make_shared<DRC_ITEM>( annularWidth );
    case DRCE_DRILL_OUT_OF_RANGE:            return std::make_shared<DRC_ITEM>( drillTooSmall );
    case DRCE_VIA_DIAMETER:                  return std::make_shared<DRC_ITEM>( viaDiameter );
    case DRCE_PADSTACK:                      return std::make_shared<DRC_ITEM>( padstack );
    case DRCE_PADSTACK_INVALID:              return std::make_shared<DRC_ITEM>( padstackInvalid );
    case DRCE_MICROVIA_DRILL_OUT_OF_RANGE:   return std::make_shared<DRC_ITEM>( microviaDrillTooSmall );
    case DRCE_MALFORMED_MICROVIA_STACK_SPAN: return std::make_shared<DRC_ITEM>( malformedMicroviaStackSpan );
    case DRCE_MICROVIA_STACK_NOT_FILLED:     return std::make_shared<DRC_ITEM>( microviaStackNotFilled );
    case DRCE_MICROVIA_STACK_DEPTH:          return std::make_shared<DRC_ITEM>( microviaStackDepth );
    case DRCE_MICROVIA_ASPECT_RATIO:         return std::make_shared<DRC_ITEM>( microviaAspectRatio );
    case DRCE_MICROVIA_CROSSES_CORE: return std::make_shared<DRC_ITEM>( microviaCrossesCore );
    case DRCE_OVERLAPPING_FOOTPRINTS:        return std::make_shared<DRC_ITEM>( courtyardsOverlap );
    case DRCE_MISSING_COURTYARD:             return std::make_shared<DRC_ITEM>( missingCourtyard );
    case DRCE_MALFORMED_COURTYARD:           return std::make_shared<DRC_ITEM>( malformedCourtyard );
    case DRCE_PTH_IN_COURTYARD:              return std::make_shared<DRC_ITEM>( pthInsideCourtyard );
    case DRCE_NPTH_IN_COURTYARD:             return std::make_shared<DRC_ITEM>( npthInsideCourtyard );
    case DRCE_DISABLED_LAYER_ITEM:           return std::make_shared<DRC_ITEM>( itemOnDisabledLayer );
    case DRCE_INVALID_OUTLINE:               return std::make_shared<DRC_ITEM>( invalidOutline );
    case DRCE_MISSING_FOOTPRINT:             return std::make_shared<DRC_ITEM>( missingFootprint );
    case DRCE_DUPLICATE_FOOTPRINT:           return std::make_shared<DRC_ITEM>( duplicateFootprints );
    case DRCE_NET_CONFLICT:                  return std::make_shared<DRC_ITEM>( netConflict );
    case DRCE_EXTRA_FOOTPRINT:               return std::make_shared<DRC_ITEM>( extraFootprint );
    case DRCE_SCHEMATIC_PARITY:              return std::make_shared<DRC_ITEM>( schematicParity );
    case DRCE_SCHEMATIC_FIELDS_PARITY:       return std::make_shared<DRC_ITEM>( schematicFieldsParity );
    case DRCE_FOOTPRINT_FILTERS:             return std::make_shared<DRC_ITEM>( footprintFilters );
    case DRCE_LIB_FOOTPRINT_ISSUES:          return std::make_shared<DRC_ITEM>( libFootprintIssues );
    case DRCE_LIB_FOOTPRINT_MISMATCH:        return std::make_shared<DRC_ITEM>( libFootprintMismatch );
    case DRCE_UNRESOLVED_VARIABLE:           return std::make_shared<DRC_ITEM>( unresolvedVariable );
    case DRCE_ASSERTION_FAILURE:             return std::make_shared<DRC_ITEM>( assertionFailure );
    case DRCE_GENERIC_WARNING:               return std::make_shared<DRC_ITEM>( genericWarning );
    case DRCE_GENERIC_ERROR:                 return std::make_shared<DRC_ITEM>( genericError );
    case DRCE_COPPER_SLIVER:                 return std::make_shared<DRC_ITEM>( copperSliver );
    case DRCE_SILK_CLEARANCE:                return std::make_shared<DRC_ITEM>( silkClearance );
    case DRCE_SILK_MASK_CLEARANCE:           return std::make_shared<DRC_ITEM>( silkMaskClearance );
    case DRCE_SILK_EDGE_CLEARANCE:           return std::make_shared<DRC_ITEM>( silkEdgeClearance );
    case DRCE_SOLDERMASK_BRIDGE:             return std::make_shared<DRC_ITEM>( solderMaskBridge );
    case DRCE_TEXT_HEIGHT:                   return std::make_shared<DRC_ITEM>( textHeightOutOfRange );
    case DRCE_TEXT_THICKNESS:                return std::make_shared<DRC_ITEM>( textThicknessOutOfRange );
    case DRCE_LENGTH_OUT_OF_RANGE:           return std::make_shared<DRC_ITEM>( lengthOutOfRange );
    case DRCE_NET_CHAIN_STUB_TOO_LONG:       return std::make_shared<DRC_ITEM>( netChainStubTooLong );
    case DRCE_NET_CHAIN_RETURN_PATH_BREAK:   return std::make_shared<DRC_ITEM>( netChainReturnPathBreak );
    case DRCE_NET_CHAIN_TUNING_PROFILES: return std::make_shared<DRC_ITEM>( netChainTuningProfiles );
    case DRCE_SKEW_OUT_OF_RANGE:             return std::make_shared<DRC_ITEM>( skewOutOfRange );
    case DRCE_VIA_COUNT_OUT_OF_RANGE:        return std::make_shared<DRC_ITEM>( viaCountOutOfRange );
    case DRCE_DP_GAP_OUT_OF_RANGE:           return std::make_shared<DRC_ITEM>( diffPairGapOutOfRange );
    case DRCE_DP_UNCOUPLED_LENGTH_TOO_LONG:  return std::make_shared<DRC_ITEM>( diffPairUncoupledLengthTooLong );
    case DRCE_FOOTPRINT:                     return std::make_shared<DRC_ITEM>( footprint );
    case DRCE_FOOTPRINT_TYPE_MISMATCH:       return std::make_shared<DRC_ITEM>( footprintTypeMismatch );
    case DRCE_PAD_TH_WITH_NO_HOLE:           return std::make_shared<DRC_ITEM>( footprintTHPadhasNoHole );
    case DRCE_FOOTPRINT_SCALED_WITH_PADS:    return std::make_shared<DRC_ITEM>( footprintScaledWithPads );
    case DRCE_MIRRORED_TEXT_ON_FRONT_LAYER:  return std::make_shared<DRC_ITEM>( mirroredTextOnFrontLayer );
    case DRCE_UNMIRRORED_TEXT_ON_BACK_LAYER: return std::make_shared<DRC_ITEM>( unMirroredTextOnBackLayer );
    case DRCE_MISSING_TUNING_PROFILE:        return std::make_shared<DRC_ITEM>( missingTuningProfile );
    case DRCE_TRACK_ON_POST_MACHINED_LAYER:  return std::make_shared<DRC_ITEM>( trackOnPostMachinedLayer );
    case DRCE_TRACK_NOT_CENTERED_ON_VIA:     return std::make_shared<DRC_ITEM>( trackNotCenteredOnVia );
    case DRCE_VIA_STITCH_OVERLAP:            return std::make_shared<DRC_ITEM>( viaStitchOverlap );
 
    default:
        return nullptr;
    }
}
 
 
std::shared_ptr<DRC_ITEM> DRC_ITEM::Create( const wxString& aErrorKey )
{
    for( const std::reference_wrapper<RC_ITEM>& item : allItemTypes )
    {
        if( aErrorKey == item.get().GetSettingsKey() )
            return std::make_shared<DRC_ITEM>( static_cast<const DRC_ITEM&>( item.get() ) );
    }
 
    // This can happen if a project has old-format exclusions.  Just drop these items.
    return nullptr;
}
 
 
KIID DRC_ITEM::GetAuxItem2ID() const
{
    if( m_errorCode == DRCE_DP_UNCOUPLED_LENGTH_TOO_LONG )
    {
        // we have lots of segments, but it's enough to show the first P and the first N
        return niluuid;
    }
 
    return m_ids.size() > 2 ? m_ids[2] : niluuid;
}
 
 
KIID DRC_ITEM::GetAuxItem3ID() const
{
    if( m_errorCode == DRCE_DP_UNCOUPLED_LENGTH_TOO_LONG )
    {
        // we have lots of segments, but it's enough to show the first P and the first N
        return niluuid;
    }
 
    return m_ids.size() > 3 ? m_ids[3] : niluuid;
}
 
 
wxString DRC_ITEM::GetViolatingRuleDesc( bool aTranslate ) const
{
    if( m_violatingRule )
        return wxString::Format( aTranslate ? _( "Rule: %s" ) : wxString( wxT( "Rule: %s" ) ), m_violatingRule->m_Name );
    else
        return aTranslate ? _( "Local override" ) : wxString( wxT( "Local override" ) );
}
 
 
void DRC_ITEM::GetViolationLayers( BOARD* aBoard, const std::shared_ptr<RC_ITEM>& aItem, PCB_MARKER* aMarker,
                                   PCB_LAYER_ID& aPrincipalLayer, LSET& aViolationLayers )
{
    auto getActiveLayers = []( BOARD_ITEM* it ) -> LSET
    {
        if( it->Type() == PCB_PAD_T )
        {
            PAD* pad = static_cast<PAD*>( it );
            LSET layers;
 
            for( int layer : it->GetLayerSet() )
            {
                if( pad->FlashLayer( layer ) )
                    layers.set( layer );
            }
 
            return layers;
        }
        else
        {
            return it->GetLayerSet();
        }
    };
 
    aPrincipalLayer = UNDEFINED_LAYER;
    aViolationLayers = LSET();
 
    BOARD_ITEM* a = aBoard->ResolveItem( aItem->GetMainItemID(), true );
    BOARD_ITEM* b = aBoard->ResolveItem( aItem->GetAuxItemID(), true );
    BOARD_ITEM* c = aBoard->ResolveItem( aItem->GetAuxItem2ID(), true );
    BOARD_ITEM* d = aBoard->ResolveItem( aItem->GetAuxItem3ID(), true );
 
    if( aItem->GetErrorCode() == DRCE_MALFORMED_COURTYARD )
    {
        if( a && ( a->GetFlags() & MALFORMED_B_COURTYARD ) > 0 && ( a->GetFlags() & MALFORMED_F_COURTYARD ) == 0 )
        {
            aPrincipalLayer = B_CrtYd;
        }
        else
        {
            aPrincipalLayer = F_CrtYd;
        }
    }
    else if( aItem->GetErrorCode() == DRCE_INVALID_OUTLINE || aItem->GetErrorCode() == DRCE_EDGE_CLEARANCE )
    {
        aPrincipalLayer = Edge_Cuts;
    }
    else
    {
        // The marker's layer is set by the test provider
        if( aMarker )
        {
            PCB_LAYER_ID markerLayer = aMarker->GetLayer();
 
            if( markerLayer > UNDEFINED_LAYER )
                aPrincipalLayer = markerLayer;
        }
 
        // Fall back to intersecting the layer sets of the contributing items
        if( aPrincipalLayer <= UNDEFINED_LAYER )
        {
            if( a || b || c || d )
                aViolationLayers = LSET::AllLayersMask();
 
            for( BOARD_ITEM* it : { a, b, c, d } )
            {
                if( !it )
                    continue;
 
                LSET layersList = getActiveLayers( it );
                aViolationLayers &= layersList;
 
                if( aPrincipalLayer <= UNDEFINED_LAYER && layersList.count() )
                    aPrincipalLayer = layersList.Seq().front();
            }
        }
    }
 
    if( aViolationLayers.count() )
        aPrincipalLayer = aViolationLayers.Seq().front();
    else if( aPrincipalLayer >= 0 )
        aViolationLayers.set( aPrincipalLayer );
}
 
 
void DRC_ITEMS_PROVIDER::SetSeverities( int aSeverities )
{
    m_severities = aSeverities;
 
    m_filteredMarkers.clear();
 
    for( PCB_MARKER* marker : m_board->Markers() )
    {
        if( alg::contains( m_markerTypes, marker->GetMarkerType() )
                && ( marker->GetSeverity() & m_severities ) > 0 )
        {
            m_filteredMarkers.push_back( marker );
        }
    }
 
    // Sort markers so that errors appear before warnings
    std::stable_sort( m_filteredMarkers.begin(), m_filteredMarkers.end(),
                      []( const PCB_MARKER* a, const PCB_MARKER* b )
                      {
                          return a->GetSeverity() > b->GetSeverity();
                      } );
}
 
 
int DRC_ITEMS_PROVIDER::GetSeverities() const
{
    return m_severities;
}
 
 
int DRC_ITEMS_PROVIDER::GetCount( int aSeverity ) const
{
    if( aSeverity < 0 )
        return (int) m_filteredMarkers.size();
 
    int count = 0;
 
    for( PCB_MARKER* marker : m_board->Markers() )
    {
        if( alg::contains( m_markerTypes, marker->GetMarkerType() )
                && ( marker->GetSeverity() & aSeverity ) > 0 )
        {
            count++;
        }
    }
 
    return count;
}
 
 
std::shared_ptr<RC_ITEM> DRC_ITEMS_PROVIDER::GetItem( int aIndex ) const
{
    PCB_MARKER* marker = m_filteredMarkers[ aIndex ];
 
    return marker ? marker->GetRCItem() : nullptr;
}
 
 
void DRC_ITEMS_PROVIDER::DeleteItem( int aIndex, bool aDeep )
{
    PCB_MARKER* marker = m_filteredMarkers[ aIndex ];
    m_filteredMarkers.erase( m_filteredMarkers.begin() + aIndex );
 
    if( aDeep )
        m_board->Delete( marker );
}