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 (C) 2015-2022 KiCad Developers, see change_log.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, 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 "wx/html/m_templ.h"
#include "wx/html/styleparams.h"
#include "core/kicad_algo.h"
#include <drc/drc_item.h>
#include <drc/drc_rule.h>
#include <board.h>
#include <pcb_marker.h>
 
 
// These, being statically-defined, require specialized I18N handling. We continue to
// use the _() macro so that string harvesting by the I18N framework doesn't have to be
// specialized, but we don't translate on initialization and instead do it in the getters.
 
#undef _
#define _(s) s
 
// NOTE: Avoid changing the settings key for a DRC item after it has been created
 
 
DRC_ITEM DRC_ITEM::heading_electrical( 0, _( "Electrical" ), "" );
DRC_ITEM DRC_ITEM::heading_DFM( 0, _( "Design for Manufacturing" ), "" );
DRC_ITEM DRC_ITEM::heading_schematic_parity( 0, _( "Schematic Parity" ), "" );
DRC_ITEM DRC_ITEM::heading_signal_integrity( 0, _( "Signal Integrity" ), "" );
DRC_ITEM DRC_ITEM::heading_readability( 0, _( "Readability" ), "" );
DRC_ITEM DRC_ITEM::heading_misc( 0, _( "Miscellaneous" ), "" );
 
DRC_ITEM DRC_ITEM::unconnectedItems( DRCE_UNCONNECTED_ITEMS,
 _( "Missing connection between items" ),
 wxT( "unconnected_items" ) );
 
DRC_ITEM DRC_ITEM::shortingItems( DRCE_SHORTING_ITEMS,
 _( "Items shorting two nets" ),
 wxT( "shorting_items" ) );
 
DRC_ITEM DRC_ITEM::itemsNotAllowed( DRCE_ALLOWED_ITEMS,
 _( "Items not allowed" ),
 wxT( "items_not_allowed" ) );
 
DRC_ITEM DRC_ITEM::textOnEdgeCuts( DRCE_TEXT_ON_EDGECUTS,
 _( "Text (or dimension) on Edge.Cuts layer" ),
 wxT( "text_on_edge_cuts" ) );
 
DRC_ITEM DRC_ITEM::clearance( DRCE_CLEARANCE,
 _( "Clearance violation" ),
 wxT( "clearance" ) );
 
DRC_ITEM DRC_ITEM::tracksCrossing( DRCE_TRACKS_CROSSING,
 _( "Tracks crossing" ),
 wxT( "tracks_crossing" ) );
 
DRC_ITEM DRC_ITEM::edgeClearance( DRCE_EDGE_CLEARANCE,
 _( "Board edge clearance violation" ),
 wxT( "copper_edge_clearance" ) );
 
DRC_ITEM DRC_ITEM::zonesIntersect( DRCE_ZONES_INTERSECT,
 _( "Copper zones intersect" ),
 wxT( "zones_intersect" ) );
 
DRC_ITEM DRC_ITEM::isolatedCopper( DRCE_ISOLATED_COPPER,
 _( "Isolated copper fill" ),
 wxT( "isolated_copper" ) );
 
DRC_ITEM DRC_ITEM::starvedThermal( DRCE_STARVED_THERMAL,
 _( "Thermal relief connection to zone incomplete" ),
 wxT( "starved_thermal" ) );
 
DRC_ITEM DRC_ITEM::viaDangling( DRCE_DANGLING_VIA,
 _( "Via is not connected or connected on only one layer" ),
 wxT( "via_dangling" ) );
 
DRC_ITEM DRC_ITEM::trackDangling( DRCE_DANGLING_TRACK,
 _( "Track has unconnected end" ),
 wxT( "track_dangling" ) );
 
DRC_ITEM DRC_ITEM::holeClearance( DRCE_HOLE_CLEARANCE,
 _( "Hole clearance violation" ),
 wxT( "hole_clearance" ) );
 
DRC_ITEM DRC_ITEM::holeNearHole( DRCE_DRILLED_HOLES_TOO_CLOSE,
 _( "Drilled holes too close together" ),
 wxT( "hole_to_hole" ) );
 
DRC_ITEM DRC_ITEM::holesCoLocated( DRCE_DRILLED_HOLES_COLOCATED,
 _( "Drilled holes co-located" ),
 wxT( "holes_co_located" ) );
 
DRC_ITEM DRC_ITEM::connectionWidth( DRCE_CONNECTION_WIDTH,
 _( "Copper connection too narrow" ),
 wxT( "connection_width" ) );
 
DRC_ITEM DRC_ITEM::trackWidth( DRCE_TRACK_WIDTH,
 _( "Track width" ),
 wxT( "track_width" ) );
 
DRC_ITEM DRC_ITEM::annularWidth( DRCE_ANNULAR_WIDTH,
 _( "Annular width" ),
 wxT( "annular_width" ) );
 
DRC_ITEM DRC_ITEM::drillTooSmall( DRCE_DRILL_OUT_OF_RANGE,
 _( "Hole size out of range" ),
 wxT( "drill_out_of_range" ) );
 
DRC_ITEM DRC_ITEM::viaDiameter( DRCE_VIA_DIAMETER,
 _( "Via diameter" ),
 wxT( "via_diameter" ) );
 
DRC_ITEM DRC_ITEM::padstack( DRCE_PADSTACK,
 _( "Padstack is not valid" ),
 wxT( "padstack" ) );
 
DRC_ITEM DRC_ITEM::microviaDrillTooSmall( DRCE_MICROVIA_DRILL_OUT_OF_RANGE,
 _( "Micro via hole size out of range" ),
 wxT( "microvia_drill_out_of_range" ) );
 
DRC_ITEM DRC_ITEM::courtyardsOverlap( DRCE_OVERLAPPING_FOOTPRINTS,
 _( "Courtyards overlap" ),
 wxT( "courtyards_overlap" ) );
 
DRC_ITEM DRC_ITEM::missingCourtyard( DRCE_MISSING_COURTYARD,
 _( "Footprint has no courtyard defined" ),
 wxT( "missing_courtyard" ) );
 
DRC_ITEM DRC_ITEM::malformedCourtyard( DRCE_MALFORMED_COURTYARD,
 _( "Footprint has malformed courtyard" ),
 wxT( "malformed_courtyard" ) );
 
DRC_ITEM DRC_ITEM::pthInsideCourtyard( DRCE_PTH_IN_COURTYARD,
 _( "PTH inside courtyard" ),
 wxT( "pth_inside_courtyard" ) );
 
DRC_ITEM DRC_ITEM::npthInsideCourtyard( DRCE_NPTH_IN_COURTYARD,
 _( "NPTH inside courtyard" ),
 wxT( "npth_inside_courtyard" ) );
 
DRC_ITEM DRC_ITEM::itemOnDisabledLayer( DRCE_DISABLED_LAYER_ITEM,
 _( "Item on a disabled copper layer" ),
 wxT( "item_on_disabled_layer" ) );
 
DRC_ITEM DRC_ITEM::invalidOutline( DRCE_INVALID_OUTLINE,
 _( "Board has malformed outline" ),
 wxT( "invalid_outline" ) );
 
DRC_ITEM DRC_ITEM::duplicateFootprints( DRCE_DUPLICATE_FOOTPRINT,
 _( "Duplicate footprints" ),
 wxT( "duplicate_footprints" ) );
 
DRC_ITEM DRC_ITEM::missingFootprint( DRCE_MISSING_FOOTPRINT,
 _( "Missing footprint" ),
 wxT( "missing_footprint" ) );
 
DRC_ITEM DRC_ITEM::extraFootprint( DRCE_EXTRA_FOOTPRINT,
 _( "Extra footprint" ),
 wxT( "extra_footprint" ) );
 
DRC_ITEM DRC_ITEM::netConflict( DRCE_NET_CONFLICT,
 _( "Pad net doesn't match schematic" ),
 wxT( "net_conflict" ) );
 
DRC_ITEM DRC_ITEM::schematicParityIssues( DRCE_SCHEMATIC_PARITY_ISSUES,
 _( "Footprint attributes don't match symbol" ),
 wxT( "footprint_symbol_mismatch" ) );
 
DRC_ITEM DRC_ITEM::libFootprintIssues( DRCE_LIB_FOOTPRINT_ISSUES,
 _( "Footprint not found in libraries" ),
 wxT( "lib_footprint_issues" ) );
 
DRC_ITEM DRC_ITEM::libFootprintMismatch( DRCE_LIB_FOOTPRINT_MISMATCH,
 _( "Footprint doesn't match copy in library" ),
 wxT( "lib_footprint_mismatch" ) );
 
DRC_ITEM DRC_ITEM::unresolvedVariable( DRCE_UNRESOLVED_VARIABLE,
 _( "Unresolved text variable" ),
 wxT( "unresolved_variable" ) );
 
DRC_ITEM DRC_ITEM::assertionFailure( DRCE_ASSERTION_FAILURE,
 _( "Assertion failure" ),
 wxT( "assertion_failure" ) );
 
DRC_ITEM DRC_ITEM::copperSliver( DRCE_COPPER_SLIVER,
 _( "Copper sliver" ),
 wxT( "copper_sliver" ) );
 
DRC_ITEM DRC_ITEM::solderMaskBridge( DRCE_SOLDERMASK_BRIDGE,
 _( "Solder mask aperture bridges items with different nets" ),
 wxT( "solder_mask_bridge" ) );
 
DRC_ITEM DRC_ITEM::silkClearance( DRCE_SILK_CLEARANCE,
 _( "Silkscreen clipped by solder mask" ),
 wxT( "silk_over_copper" ) );
 
DRC_ITEM DRC_ITEM::silkEdgeClearance( DRCE_SILK_EDGE_CLEARANCE,
 _( "Silkscreen clipped by board edge" ),
 wxT( "silk_edge_clearance" ) );
 
DRC_ITEM DRC_ITEM::silkOverlaps( DRCE_OVERLAPPING_SILK,
 _( "Silkscreen overlap" ),
 wxT( "silk_overlap" ) );
 
DRC_ITEM DRC_ITEM::textHeightOutOfRange( DRCE_TEXT_HEIGHT,
 _( "Text height out of range" ),
 wxT( "text_height" ) );
 
DRC_ITEM DRC_ITEM::textThicknessOutOfRange( DRCE_TEXT_THICKNESS,
 _( "Text thickness out of range" ),
 wxT( "text_thickness" ) );
 
DRC_ITEM DRC_ITEM::lengthOutOfRange( DRCE_LENGTH_OUT_OF_RANGE,
 _( "Trace length out of range" ),
 wxT( "length_out_of_range" ) );
 
DRC_ITEM DRC_ITEM::skewOutOfRange( DRCE_SKEW_OUT_OF_RANGE,
 _( "Skew between traces 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,
 _( "Too many or too few vias on a connection" ),
 wxT( "too_many_vias" ) );
 
DRC_ITEM DRC_ITEM::diffPairGapOutOfRange( DRCE_DIFF_PAIR_GAP_OUT_OF_RANGE,
 _( "Differential pair gap out of range" ),
 wxT( "diff_pair_gap_out_of_range" ) );
 
DRC_ITEM DRC_ITEM::diffPairUncoupledLengthTooLong( DRCE_DIFF_PAIR_UNCOUPLED_LENGTH_TOO_LONG,
 _( "Differential uncoupled length too long" ),
 wxT( "diff_pair_uncoupled_length_too_long" ) );
 
DRC_ITEM DRC_ITEM::footprint( DRCE_FOOTPRINT,
 _( "Footprint is not valid" ),
 wxT( "footprint" ) );
 
DRC_ITEM DRC_ITEM::footprintTypeMismatch( DRCE_FOOTPRINT_TYPE_MISMATCH,
 _( "Footprint component type doesn't match footprint pads" ),
 wxT( "footprint_type_mismatch" ) );
 
DRC_ITEM DRC_ITEM::footprintTHPadhasNoHole( DRCE_PAD_TH_WITH_NO_HOLE,
 _( "Through hole pad has no hole" ),
 wxT( "through_hole_pad_without_hole" ) );
 
 
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::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::annularWidth,
 DRC_ITEM::drillTooSmall,
 DRC_ITEM::microviaDrillTooSmall,
 DRC_ITEM::courtyardsOverlap,
 DRC_ITEM::missingCourtyard,
 DRC_ITEM::malformedCourtyard,
 DRC_ITEM::invalidOutline,
 DRC_ITEM::copperSliver,
 DRC_ITEM::solderMaskBridge,
 DRC_ITEM::connectionWidth,
 
 DRC_ITEM::heading_schematic_parity,
 DRC_ITEM::duplicateFootprints,
 DRC_ITEM::missingFootprint,
 DRC_ITEM::extraFootprint,
 DRC_ITEM::schematicParityIssues,
 DRC_ITEM::netConflict,
 DRC_ITEM::unconnectedItems,
 
 DRC_ITEM::heading_signal_integrity,
 DRC_ITEM::lengthOutOfRange,
 DRC_ITEM::skewOutOfRange,
 DRC_ITEM::viaCountOutOfRange,
 DRC_ITEM::diffPairGapOutOfRange,
 DRC_ITEM::diffPairUncoupledLengthTooLong,
 
 DRC_ITEM::heading_readability,
 DRC_ITEM::silkOverlaps,
 DRC_ITEM::silkClearance,
 DRC_ITEM::silkEdgeClearance,
 DRC_ITEM::textHeightOutOfRange,
 DRC_ITEM::textThicknessOutOfRange,
 
 DRC_ITEM::heading_misc,
 DRC_ITEM::itemsNotAllowed,
 DRC_ITEM::zonesIntersect,
 DRC_ITEM::isolatedCopper,
 DRC_ITEM::footprint,
 DRC_ITEM::padstack,
 DRC_ITEM::pthInsideCourtyard,
 DRC_ITEM::npthInsideCourtyard,
 DRC_ITEM::itemOnDisabledLayer,
 DRC_ITEM::unresolvedVariable,
 
 DRC_ITEM::footprintTypeMismatch,
 DRC_ITEM::libFootprintIssues,
 DRC_ITEM::libFootprintMismatch,
 DRC_ITEM::footprintTHPadhasNoHole
 } );
 
 
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_TRACKS_CROSSING: return std::make_shared<DRC_ITEM>( tracksCrossing );
 case DRCE_EDGE_CLEARANCE: return std::make_shared<DRC_ITEM>( edgeClearance );
 case DRCE_ZONES_INTERSECT: return std::make_shared<DRC_ITEM>( zonesIntersect );
 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_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_MICROVIA_DRILL_OUT_OF_RANGE: return std::make_shared<DRC_ITEM>( microviaDrillTooSmall );
 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_ISSUES: return std::make_shared<DRC_ITEM>( schematicParityIssues );
 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_COPPER_SLIVER: return std::make_shared<DRC_ITEM>( copperSliver );
 case DRCE_OVERLAPPING_SILK: return std::make_shared<DRC_ITEM>( silkOverlaps );
 case DRCE_SILK_CLEARANCE: return std::make_shared<DRC_ITEM>( silkClearance );
 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_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_DIFF_PAIR_GAP_OUT_OF_RANGE: return std::make_shared<DRC_ITEM>( diffPairGapOutOfRange );
 case DRCE_DIFF_PAIR_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 );
 default:
 wxFAIL_MSG( wxT( "Unknown DRC error code" ) );
 return nullptr;
 }
}
 
 
std::shared_ptr<DRC_ITEM> DRC_ITEM::Create( const wxString& aErrorKey )
{
 for( const RC_ITEM& item : allItemTypes )
 {
 if( aErrorKey == item.GetSettingsKey() )
 return std::make_shared<DRC_ITEM>( static_cast<const DRC_ITEM&>( item ) );
 }
 
 // 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_DIFF_PAIR_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_DIFF_PAIR_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() const
{
 if( m_violatingRule )
 return wxString::Format( _( "Rule: %s" ), m_violatingRule->m_Name );
 else
 return _( "Local override" );
}
 
 
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 );
 }
 }
}
 
 
int DRC_ITEMS_PROVIDER::GetCount( int aSeverity ) const
{
 if( aSeverity < 0 )
 return 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 );
}