board_commit.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2016 CERN
 * Copyright (C) 2020-2023 KiCad Developers, see AUTHORS.txt for contributors.
 * @author Tomasz Wlostowski <[email protected]>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
#include <macros.h>
#include <board.h>
#include <footprint.h>
#include <lset.h>
#include <pcb_group.h>
#include <pcb_track.h>
#include <tool/tool_manager.h>
#include <tools/pcb_selection_tool.h>
#include <tools/zone_filler_tool.h>
#include <view/view.h>
#include <board_commit.h>
#include <tools/pcb_tool_base.h>
#include <tools/pcb_actions.h>
#include <connectivity/connectivity_data.h>
#include <teardrop/teardrop.h>
 
#include <functional>
using namespace std::placeholders;
 
 
BOARD_COMMIT::BOARD_COMMIT( TOOL_BASE* aTool ) :
 m_toolMgr( aTool->GetManager() ),
 m_isBoardEditor( false ),
 m_isFootprintEditor( false )
{
 if( PCB_TOOL_BASE* pcb_tool = dynamic_cast<PCB_TOOL_BASE*>( aTool ) )
 {
 m_isBoardEditor = pcb_tool->IsBoardEditor();
 m_isFootprintEditor = pcb_tool->IsFootprintEditor();
 }
}
 
 
BOARD_COMMIT::BOARD_COMMIT( EDA_DRAW_FRAME* aFrame ) :
 m_toolMgr( aFrame->GetToolManager() ),
 m_isBoardEditor( aFrame->IsType( FRAME_PCB_EDITOR ) ),
 m_isFootprintEditor( aFrame->IsType( FRAME_FOOTPRINT_EDITOR ) )
{
}
 
 
BOARD_COMMIT::BOARD_COMMIT( TOOL_MANAGER* aMgr ) :
 m_toolMgr( aMgr ),
 m_isBoardEditor( false ),
 m_isFootprintEditor( false )
{
 EDA_DRAW_FRAME* frame = dynamic_cast<EDA_DRAW_FRAME*>( aMgr->GetToolHolder() );
 
 if( frame && frame->IsType( FRAME_PCB_EDITOR ) )
 m_isBoardEditor = true;
 else if( frame && frame->IsType( FRAME_FOOTPRINT_EDITOR ) )
 m_isFootprintEditor = true;
}
 
 
BOARD* BOARD_COMMIT::GetBoard() const
{
 return static_cast<BOARD*>( m_toolMgr->GetModel() );
}
 
 
COMMIT& BOARD_COMMIT::Stage( EDA_ITEM* aItem, CHANGE_TYPE aChangeType, BASE_SCREEN* aScreen )
{
 wxCHECK( aItem, *this );
 
 // Many operations (move, rotate, etc.) are applied directly to a group's children, so they
 // must be staged as well.
 if( aChangeType == CHT_MODIFY )
 {
 if( PCB_GROUP* group = dynamic_cast<PCB_GROUP*>( aItem ) )
 {
 group->RunOnChildren(
 [&]( BOARD_ITEM* child )
 {
 Stage( child, aChangeType );
 } );
 }
 }
 
 return COMMIT::Stage( aItem, aChangeType );
}
 
 
COMMIT& BOARD_COMMIT::Stage( std::vector<EDA_ITEM*>& container, CHANGE_TYPE aChangeType,
 BASE_SCREEN* aScreen )
{
 return COMMIT::Stage( container, aChangeType, aScreen );
}
 
 
COMMIT& BOARD_COMMIT::Stage( const PICKED_ITEMS_LIST& aItems, UNDO_REDO aModFlag,
 BASE_SCREEN* aScreen )
{
 return COMMIT::Stage( aItems, aModFlag, aScreen );
}
 
 
void BOARD_COMMIT::dirtyIntersectingZones( BOARD_ITEM* item, int aChangeType )
{
 wxCHECK( item, /* void */ );
 
 ZONE_FILLER_TOOL* zoneFillerTool = m_toolMgr->GetTool<ZONE_FILLER_TOOL>();
 
 if( item->Type() == PCB_ZONE_T )
 zoneFillerTool->DirtyZone( static_cast<ZONE*>( item ) );
 
 item->RunOnChildren( std::bind( &BOARD_COMMIT::dirtyIntersectingZones, this, _1, aChangeType ) );
 
 BOARD* board = static_cast<BOARD*>( m_toolMgr->GetModel() );
 BOX2I bbox = item->GetBoundingBox();
 LSET layers = item->GetLayerSet();
 
 if( layers.test( Edge_Cuts ) || layers.test( Margin ) )
 layers = LSET::PhysicalLayersMask();
 else
 layers &= LSET::AllCuMask();
 
 if( layers.any() )
 {
 for( ZONE* zone : board->Zones() )
 {
 if( zone->GetIsRuleArea() )
 continue;
 
 if( ( zone->GetLayerSet() & layers ).any()
 && zone->GetBoundingBox().Intersects( bbox ) )
 {
 zoneFillerTool->DirtyZone( zone );
 }
 }
 }
}
 
 
void BOARD_COMMIT::Push( const wxString& aMessage, int aCommitFlags )
{
 KIGFX::VIEW* view = m_toolMgr->GetView();
 BOARD* board = static_cast<BOARD*>( m_toolMgr->GetModel() );
 PCB_BASE_FRAME* frame = dynamic_cast<PCB_BASE_FRAME*>( m_toolMgr->GetToolHolder() );
 PCB_SELECTION_TOOL* selTool = m_toolMgr->GetTool<PCB_SELECTION_TOOL>();
 
 // Notification info
 PICKED_ITEMS_LIST undoList;
 bool itemsDeselected = false;
 bool selectedModified = false;
 
 // Dirty flags and lists
 bool solderMaskDirty = false;
 bool autofillZones = false;
 std::vector<BOARD_ITEM*> staleTeardropPadsAndVias;
 std::set<PCB_TRACK*> staleTeardropTracks;
 PCB_GROUP* addedGroup = nullptr;
 
 if( Empty() )
 return;
 
 undoList.SetDescription( aMessage );
 
 TEARDROP_MANAGER teardropMgr( board, m_toolMgr );
 std::shared_ptr<CONNECTIVITY_DATA> connectivity = board->GetConnectivity();
 
 // Note: frame == nullptr happens in QA tests
 
 std::vector<BOARD_ITEM*> bulkAddedItems;
 std::vector<BOARD_ITEM*> bulkRemovedItems;
 std::vector<BOARD_ITEM*> itemsChanged;
 
 if( m_isBoardEditor
 && !( aCommitFlags & ZONE_FILL_OP )
 && ( frame && frame->GetPcbNewSettings()->m_AutoRefillZones ) )
 {
 autofillZones = true;
 
 for( ZONE* zone : board->Zones() )
 zone->CacheBoundingBox();
 }
 
 for( COMMIT_LINE& ent : m_changes )
 {
 BOARD_ITEM* boardItem = dynamic_cast<BOARD_ITEM*>( ent.m_item );
 
 if( m_isBoardEditor && boardItem )
 {
 if( boardItem->Type() == PCB_VIA_T || boardItem->Type() == PCB_FOOTPRINT_T
 || boardItem->IsOnLayer( F_Mask ) || boardItem->IsOnLayer( B_Mask ) )
 {
 solderMaskDirty = true;
 }
 
 if( !( aCommitFlags & SKIP_TEARDROPS ) )
 {
 if( boardItem->Type() == PCB_FOOTPRINT_T )
 {
 for( PAD* pad : static_cast<FOOTPRINT*>( boardItem )->Pads() )
 staleTeardropPadsAndVias.push_back( pad );
 }
 else if( boardItem->Type() == PCB_PAD_T || boardItem->Type() == PCB_VIA_T )
 {
 staleTeardropPadsAndVias.push_back( boardItem );
 }
 else if( boardItem->Type() == PCB_TRACE_T || boardItem->Type() == PCB_ARC_T )
 {
 PCB_TRACK* track = static_cast<PCB_TRACK*>( boardItem );
 
 staleTeardropTracks.insert( track );
 
 std::vector<PAD*> connectedPads;
 std::vector<PCB_VIA*> connectedVias;
 
 connectivity->GetConnectedPadsAndVias( track, &connectedPads, &connectedVias );
 
 for( PAD* pad : connectedPads )
 staleTeardropPadsAndVias.push_back( pad );
 
 for( PCB_VIA* via : connectedVias )
 staleTeardropPadsAndVias.push_back( via );
 }
 }
 }
 
 if( boardItem && boardItem->IsSelected() )
 selectedModified = true;
 }
 
 // Old teardrops must be removed before connectivity is rebuilt
 if( !staleTeardropPadsAndVias.empty() || !staleTeardropTracks.empty() )
 teardropMgr.RemoveTeardrops( *this, &staleTeardropPadsAndVias, &staleTeardropTracks );
 
 for( COMMIT_LINE& ent : m_changes )
 {
 int changeType = ent.m_type & CHT_TYPE;
 int changeFlags = ent.m_type & CHT_FLAGS;
 BOARD_ITEM* boardItem = dynamic_cast<BOARD_ITEM*>( ent.m_item );
 
 wxASSERT( ent.m_item );
 wxCHECK2( boardItem, continue );
 
 switch( changeType )
 {
 case CHT_ADD:
 if( selTool && selTool->GetEnteredGroup() && !boardItem->GetParentGroup()
 && PCB_GROUP::IsGroupableType( boardItem->Type() ) )
 {
 selTool->GetEnteredGroup()->AddItem( boardItem );
 }
 
 if( !( aCommitFlags & SKIP_UNDO ) )
 undoList.PushItem( ITEM_PICKER( nullptr, boardItem, UNDO_REDO::NEWITEM ) );
 
 if( !( changeFlags & CHT_DONE ) )
 {
 if( m_isFootprintEditor )
 {
 FOOTPRINT* parentFP = board->GetFirstFootprint();
 wxCHECK2_MSG( parentFP, continue, "Commit thinks this is footprint editor, but "
 "there is no first footprint!" );
 parentFP->Add( boardItem );
 }
 else if( FOOTPRINT* parentFP = boardItem->GetParentFootprint() )
 {
 parentFP->Add( boardItem );
 }
 else
 {
 board->Add( boardItem, ADD_MODE::BULK_INSERT ); // handles connectivity
 bulkAddedItems.push_back( boardItem );
 }
 }
 
 if( boardItem->Type() == PCB_GROUP_T || boardItem->Type() == PCB_GENERATOR_T )
 addedGroup = static_cast<PCB_GROUP*>( boardItem );
 
 if( m_isBoardEditor && autofillZones && boardItem->Type() != PCB_MARKER_T )
 dirtyIntersectingZones( boardItem, changeType );
 
 if( view && boardItem->Type() != PCB_NETINFO_T )
 view->Add( boardItem );
 
 break;
 
 case CHT_REMOVE:
 {
 FOOTPRINT* parentFP = boardItem->GetParentFootprint();
 PCB_GROUP* parentGroup = boardItem->GetParentGroup();
 
 if( !( aCommitFlags & SKIP_UNDO ) )
 undoList.PushItem( ITEM_PICKER( nullptr, boardItem, UNDO_REDO::DELETED ) );
 
 if( boardItem->IsSelected() )
 {
 if( selTool )
 selTool->RemoveItemFromSel( boardItem, true /* quiet mode */ );
 
 itemsDeselected = true;
 }
 
 if( parentGroup && !( parentGroup->GetFlags() & STRUCT_DELETED ) )
 parentGroup->RemoveItem( boardItem );
 
 if( parentFP && !( parentFP->GetFlags() & STRUCT_DELETED ) )
 ent.m_parent = parentFP->m_Uuid;
 
 if( m_isBoardEditor && autofillZones && boardItem->Type() != PCB_MARKER_T )
 dirtyIntersectingZones( boardItem, changeType );
 
 switch( boardItem->Type() )
 {
 case PCB_FIELD_T:
 static_cast<PCB_FIELD*>( boardItem )->SetVisible( false );
 break;
 
 case PCB_TEXT_T:
 case PCB_PAD_T:
 case PCB_SHAPE_T: // a shape (normally not on copper layers)
 case PCB_REFERENCE_IMAGE_T: // a bitmap on an associated layer
 case PCB_GENERATOR_T: // a generator on a layer
 case PCB_TEXTBOX_T: // a line-wrapped (and optionally bordered) text item
 case PCB_TABLE_T: // rows and columns of tablecells
 case PCB_TRACE_T: // a track segment (segment on a copper layer)
 case PCB_ARC_T: // an arced track segment (segment on a copper layer)
 case PCB_VIA_T: // a via (like track segment on a copper layer)
 case PCB_DIM_ALIGNED_T: // a dimension (graphic item)
 case PCB_DIM_CENTER_T:
 case PCB_DIM_RADIAL_T:
 case PCB_DIM_ORTHOGONAL_T:
 case PCB_DIM_LEADER_T: // a leader dimension
 case PCB_TARGET_T: // a target (graphic item)
 case PCB_MARKER_T: // a marker used to show something
 case PCB_ZONE_T:
 case PCB_FOOTPRINT_T:
 case PCB_GROUP_T:
 if( view )
 view->Remove( boardItem );
 
 if( !( changeFlags & CHT_DONE ) )
 {
 if( parentFP )
 {
 parentFP->Remove( boardItem );
 }
 else
 {
 board->Remove( boardItem, REMOVE_MODE::BULK );
 bulkRemovedItems.push_back( boardItem );
 }
 }
 
 break;
 
 // Metadata items
 case PCB_NETINFO_T:
 board->Remove( boardItem, REMOVE_MODE::BULK );
 bulkRemovedItems.push_back( boardItem );
 break;
 
 default: // other types do not need to (or should not) be handled
 wxASSERT( false );
 break;
 }
 
 // The item has been removed from the board; it is now owned by undo/redo.
 boardItem->SetFlags( UR_TRANSIENT );
 
 break;
 }
 
 case CHT_UNGROUP:
 if( PCB_GROUP* group = boardItem->GetParentGroup() )
 {
 if( !( aCommitFlags & SKIP_UNDO ) )
 {
 ITEM_PICKER itemWrapper( nullptr, boardItem, UNDO_REDO::UNGROUP );
 itemWrapper.SetGroupId( group->m_Uuid );
 undoList.PushItem( itemWrapper );
 }
 
 group->RemoveItem( boardItem );
 }
 
 break;
 
 case CHT_GROUP:
 if( addedGroup )
 {
 addedGroup->AddItem( boardItem );
 
 if( !( aCommitFlags & SKIP_UNDO ) )
 undoList.PushItem( ITEM_PICKER( nullptr, boardItem, UNDO_REDO::REGROUP ) );
 }
 
 break;
 
 case CHT_MODIFY:
 {
 BOARD_ITEM* boardItemCopy = dynamic_cast<BOARD_ITEM*>( ent.m_copy );
 
 if( !( aCommitFlags & SKIP_UNDO ) )
 {
 ITEM_PICKER itemWrapper( nullptr, boardItem, UNDO_REDO::CHANGED );
 wxASSERT( boardItemCopy );
 itemWrapper.SetLink( boardItemCopy );
 undoList.PushItem( itemWrapper );
 }
 
 if( !( aCommitFlags & SKIP_CONNECTIVITY ) )
 {
 if( boardItemCopy )
 connectivity->MarkItemNetAsDirty( boardItemCopy );
 
 connectivity->Update( boardItem );
 }
 
 if( m_isBoardEditor && autofillZones && boardItem->Type() != PCB_MARKER_T )
 {
 dirtyIntersectingZones( boardItemCopy, changeType ); // before
 dirtyIntersectingZones( boardItem, changeType ); // after
 }
 
 if( view )
 view->Update( boardItem );
 
 itemsChanged.push_back( boardItem );
 
 // if no undo entry is needed, the copy would create a memory leak
 if( aCommitFlags & SKIP_UNDO )
 delete ent.m_copy;
 
 break;
 }
 
 default:
 UNIMPLEMENTED_FOR( boardItem->GetClass() );
 break;
 }
 
 boardItem->ClearEditFlags();
 boardItem->RunOnDescendants(
 [&]( BOARD_ITEM* item )
 {
 item->ClearEditFlags();
 } );
 }
 
 if( m_isBoardEditor )
 {
 size_t num_changes = m_changes.size();
 
 if( aCommitFlags & SKIP_CONNECTIVITY )
 {
 connectivity->ClearRatsnest();
 connectivity->ClearLocalRatsnest();
 }
 else
 {
 connectivity->RecalculateRatsnest( this );
 board->UpdateRatsnestExclusions();
 connectivity->ClearLocalRatsnest();
 
 if( frame )
 frame->GetCanvas()->RedrawRatsnest();
 
 board->OnRatsnestChanged();
 }
 
 if( solderMaskDirty )
 {
 if( frame )
 frame->HideSolderMask();
 }
 
 if( !staleTeardropPadsAndVias.empty() || !staleTeardropTracks.empty() )
 teardropMgr.UpdateTeardrops( *this, &staleTeardropPadsAndVias, &staleTeardropTracks );
 
 // Log undo items for any connectivity or teardrop changes
 for( size_t i = num_changes; i < m_changes.size(); ++i )
 {
 COMMIT_LINE& ent = m_changes[i];
 BOARD_ITEM* boardItem = dynamic_cast<BOARD_ITEM*>( ent.m_item );
 BOARD_ITEM* boardItemCopy = dynamic_cast<BOARD_ITEM*>( ent.m_copy );
 
 wxCHECK2( boardItem, continue );
 
 if( !( aCommitFlags & SKIP_UNDO ) )
 {
 ITEM_PICKER itemWrapper( nullptr, boardItem, convert( ent.m_type & CHT_TYPE ) );
 itemWrapper.SetLink( boardItemCopy );
 undoList.PushItem( itemWrapper );
 }
 else
 {
 delete ent.m_copy;
 }
 
 if( view )
 {
 if( ( ent.m_type & CHT_TYPE ) == CHT_ADD )
 view->Add( boardItem );
 else if( ( ent.m_type & CHT_TYPE ) == CHT_REMOVE )
 view->Remove( boardItem );
 else
 view->Update( boardItem );
 }
 }
 }
 
 if( bulkAddedItems.size() > 0 || bulkRemovedItems.size() > 0 || itemsChanged.size() > 0 )
 board->OnItemsCompositeUpdate( bulkAddedItems, bulkRemovedItems, itemsChanged );
 
 if( frame )
 {
 if( !( aCommitFlags & SKIP_UNDO ) )
 {
 if( aCommitFlags & APPEND_UNDO )
 frame->AppendCopyToUndoList( undoList, UNDO_REDO::UNSPECIFIED );
 else
 frame->SaveCopyInUndoList( undoList, UNDO_REDO::UNSPECIFIED );
 }
 }
 
 m_toolMgr->PostEvent( { TC_MESSAGE, TA_MODEL_CHANGE, AS_GLOBAL } );
 
 if( itemsDeselected )
 m_toolMgr->PostEvent( EVENTS::UnselectedEvent );
 
 if( autofillZones )
 m_toolMgr->PostAction( PCB_ACTIONS::zoneFillDirty );
 
 if( selectedModified )
 m_toolMgr->ProcessEvent( EVENTS::SelectedItemsModified );
 
 if( frame )
 {
 if( !( aCommitFlags & SKIP_SET_DIRTY ) )
 frame->OnModify();
 else
 frame->Update3DView( true, frame->GetPcbNewSettings()->m_Display.m_Live3DRefresh );
 }
 
 clear();
}
 
 
EDA_ITEM* BOARD_COMMIT::parentObject( EDA_ITEM* aItem ) const
{
 return aItem;
}
 
 
EDA_ITEM* BOARD_COMMIT::makeImage( EDA_ITEM* aItem ) const
{
 return MakeImage( aItem );
}
 
 
EDA_ITEM* BOARD_COMMIT::MakeImage( EDA_ITEM* aItem )
{
 EDA_ITEM* clone = aItem->Clone();
 
 if( BOARD_ITEM* board_item = dynamic_cast<BOARD_ITEM*>( clone ) )
 board_item->SetParentGroup( nullptr );
 
 clone->SetFlags( UR_TRANSIENT );
 
 return clone;
}
 
 
void BOARD_COMMIT::Revert()
{
 PICKED_ITEMS_LIST undoList;
 KIGFX::VIEW* view = m_toolMgr->GetView();
 BOARD* board = (BOARD*) m_toolMgr->GetModel();
 std::shared_ptr<CONNECTIVITY_DATA> connectivity = board->GetConnectivity();
 
 board->IncrementTimeStamp(); // clear caches
 
 std::vector<BOARD_ITEM*> bulkAddedItems;
 std::vector<BOARD_ITEM*> bulkRemovedItems;
 std::vector<BOARD_ITEM*> itemsChanged;
 
 for( auto it = m_changes.rbegin(); it != m_changes.rend(); ++it )
 {
 COMMIT_LINE& ent = *it;
 BOARD_ITEM* boardItem = dynamic_cast<BOARD_ITEM*>( ent.m_item );
 int changeType = ent.m_type & CHT_TYPE;
 int changeFlags = ent.m_type & CHT_FLAGS;
 
 wxCHECK2( boardItem, continue );
 
 switch( changeType )
 {
 case CHT_ADD:
 // Items are auto-added to the parent group by BOARD_ITEM::Duplicate(), not when
 // the commit is pushed.
 if( PCB_GROUP* parentGroup = boardItem->GetParentGroup() )
 {
 if( GetStatus( parentGroup ) == 0 )
 parentGroup->RemoveItem( boardItem );
 }
 
 if( !( changeFlags & CHT_DONE ) )
 break;
 
 view->Remove( boardItem );
 connectivity->Remove( boardItem );
 
 if( FOOTPRINT* parentFP = boardItem->GetParentFootprint() )
 {
 parentFP->Remove( boardItem );
 }
 else
 {
 board->Remove( boardItem, REMOVE_MODE::BULK );
 bulkRemovedItems.push_back( boardItem );
 }
 
 break;
 
 case CHT_REMOVE:
 if( !( changeFlags & CHT_DONE ) )
 break;
 
 view->Add( boardItem );
 connectivity->Add( boardItem );
 
 if( FOOTPRINT* parentFP = dynamic_cast<FOOTPRINT*>( board->GetItem( ent.m_parent ) ) )
 {
 parentFP->Add( boardItem, ADD_MODE::INSERT );
 }
 else
 {
 board->Add( boardItem, ADD_MODE::INSERT );
 bulkAddedItems.push_back( boardItem );
 }
 
 break;
 
 case CHT_MODIFY:
 {
 view->Remove( boardItem );
 connectivity->Remove( boardItem );
 
 BOARD_ITEM* boardItemCopy = dynamic_cast<BOARD_ITEM*>( ent.m_copy );
 wxASSERT( boardItemCopy );
 boardItem->SwapItemData( boardItemCopy );
 
 if( PCB_GROUP* group = dynamic_cast<PCB_GROUP*>( boardItem ) )
 {
 group->RunOnChildren(
 [&]( BOARD_ITEM* child )
 {
 child->SetParentGroup( group );
 } );
 }
 
 view->Add( boardItem );
 connectivity->Add( boardItem );
 itemsChanged.push_back( boardItem );
 
 delete ent.m_copy;
 break;
 }
 
 default:
 UNIMPLEMENTED_FOR( boardItem->GetClass() );
 break;
 }
 
 boardItem->ClearEditFlags();
 }
 
 if( bulkAddedItems.size() > 0 || bulkRemovedItems.size() > 0 || itemsChanged.size() > 0 )
 board->OnItemsCompositeUpdate( bulkAddedItems, bulkRemovedItems, itemsChanged );
 
 if( m_isBoardEditor )
 {
 connectivity->RecalculateRatsnest();
 board->UpdateRatsnestExclusions();
 board->OnRatsnestChanged();
 }
 
 PCB_SELECTION_TOOL* selTool = m_toolMgr->GetTool<PCB_SELECTION_TOOL>();
 selTool->RebuildSelection();
 
 // Property panel needs to know about the reselect
 m_toolMgr->PostEvent( EVENTS::SelectedItemsModified );
 
 clear();
}