placement_tool.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2014-2016 CERN
 * Copyright (C) 2021-2022 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, 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 "tool/selection.h"
#include "placement_tool.h"
#include "pcb_actions.h"
#include "pcb_selection_tool.h"
 
#include <ratsnest/ratsnest_data.h>
#include <tool/tool_manager.h>
 
#include <board.h>
#include <board_commit.h>
#include <bitmaps.h>
#include <pcb_edit_frame.h>
#include <geometry/distribute.h>
#include <view/view_controls.h>
 
 
ALIGN_DISTRIBUTE_TOOL::ALIGN_DISTRIBUTE_TOOL() :
 TOOL_INTERACTIVE( "pcbnew.Placement" ),
 m_selectionTool( nullptr ),
 m_placementMenu( nullptr ),
 m_frame( nullptr )
{
}
 
ALIGN_DISTRIBUTE_TOOL::~ALIGN_DISTRIBUTE_TOOL()
{
 delete m_placementMenu;
}
 
 
bool ALIGN_DISTRIBUTE_TOOL::Init()
{
 // Find the selection tool, so they can cooperate
 m_selectionTool = m_toolMgr->GetTool<PCB_SELECTION_TOOL>();
 m_frame = getEditFrame<PCB_BASE_FRAME>();
 
 // Create a context menu and make it available through selection tool
 m_placementMenu = new CONDITIONAL_MENU( this );
 m_placementMenu->SetIcon( BITMAPS::align_items );
 m_placementMenu->SetTitle( _( "Align/Distribute" ) );
 
 const auto canAlign = SELECTION_CONDITIONS::MoreThan( 1 );
 const auto canDistribute = SELECTION_CONDITIONS::MoreThan( 2 );
 
 // Add all align/distribute commands
 m_placementMenu->AddItem( PCB_ACTIONS::alignLeft, canAlign );
 m_placementMenu->AddItem( PCB_ACTIONS::alignCenterX, canAlign );
 m_placementMenu->AddItem( PCB_ACTIONS::alignRight, canAlign );
 
 m_placementMenu->AddSeparator( canAlign );
 m_placementMenu->AddItem( PCB_ACTIONS::alignTop, canAlign );
 m_placementMenu->AddItem( PCB_ACTIONS::alignCenterY, canAlign );
 m_placementMenu->AddItem( PCB_ACTIONS::alignBottom, canAlign );
 
 m_placementMenu->AddSeparator( canDistribute );
 m_placementMenu->AddItem( PCB_ACTIONS::distributeHorizontallyCenters, canDistribute );
 m_placementMenu->AddItem( PCB_ACTIONS::distributeHorizontallyGaps, canDistribute );
 m_placementMenu->AddItem( PCB_ACTIONS::distributeVerticallyCenters, canDistribute );
 m_placementMenu->AddItem( PCB_ACTIONS::distributeVerticallyGaps, canDistribute );
 
 CONDITIONAL_MENU& selToolMenu = m_selectionTool->GetToolMenu().GetMenu();
 selToolMenu.AddMenu( m_placementMenu, SELECTION_CONDITIONS::MoreThan( 1 ), 100 );
 
 return true;
}
 
 
template <class T>
std::vector<std::pair<BOARD_ITEM*, BOX2I>> GetBoundingBoxes( const T& aItems )
{
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> rects;
 
 for( EDA_ITEM* item : aItems )
 {
 BOARD_ITEM* boardItem = dynamic_cast<BOARD_ITEM*>( item );
 
 wxCHECK2( boardItem, continue );
 
 if( item->Type() == PCB_FOOTPRINT_T )
 {
 FOOTPRINT* footprint = static_cast<FOOTPRINT*>( item );
 rects.emplace_back( std::make_pair( footprint,
 footprint->GetBoundingBox( false, false ) ) );
 }
 else
 {
 rects.emplace_back( std::make_pair( boardItem, boardItem->GetBoundingBox() ) );
 }
 }
 
 return rects;
}
 
 
template< typename T >
int ALIGN_DISTRIBUTE_TOOL::selectTarget( std::vector<std::pair<BOARD_ITEM*, BOX2I>>& aItems,
 std::vector<std::pair<BOARD_ITEM*, BOX2I>>& aLocked,
 T aGetValue )
{
 VECTOR2I curPos = getViewControls()->GetCursorPosition();
 
 // Prefer locked items to unlocked items.
 // Secondly, prefer items under the cursor to other items.
 
 if( aLocked.size() >= 1 )
 {
 for( const std::pair<BOARD_ITEM*, BOX2I>& item : aLocked )
 {
 if( item.second.Contains( curPos ) )
 return aGetValue( item );
 }
 
 return aGetValue( aLocked.front() );
 }
 
 for( const std::pair<BOARD_ITEM*, BOX2I>& item : aItems )
 {
 if( item.second.Contains( curPos ) )
 return aGetValue( item );
 }
 
 return aGetValue( aItems.front() );
}
 
 
template< typename T >
size_t ALIGN_DISTRIBUTE_TOOL::GetSelections( std::vector<std::pair<BOARD_ITEM*, BOX2I>>& aItemsToAlign,
 std::vector<std::pair<BOARD_ITEM*, BOX2I>>& aLockedItems,
 T aCompare )
{
 PCB_SELECTION& selection = m_selectionTool->RequestSelection(
 []( const VECTOR2I& aPt, GENERAL_COLLECTOR& aCollector, PCB_SELECTION_TOOL* sTool )
 {
 // Iterate from the back so we don't have to worry about removals.
 for( int i = aCollector.GetCount() - 1; i >= 0; --i )
 {
 BOARD_ITEM* item = aCollector[i];
 
 if( item->Type() == PCB_MARKER_T )
 aCollector.Remove( item );
 }
 } );
 
 std::vector<BOARD_ITEM*> lockedItems;
 std::vector<BOARD_ITEM*> itemsToAlign;
 
 for( EDA_ITEM* item : selection )
 {
 BOARD_ITEM* boardItem = dynamic_cast<BOARD_ITEM*>( item );
 wxCHECK2( boardItem, continue );
 
 // We do not lock items in the footprint editor
 if( boardItem->IsLocked() && m_frame->IsType( FRAME_PCB_EDITOR ) )
 {
 // Locking a pad but not the footprint means that we align the footprint using
 // the pad position. So we test for footprint locking here
 if( boardItem->Type() == PCB_PAD_T && !boardItem->GetParent()->IsLocked() )
 itemsToAlign.push_back( boardItem );
 else
 lockedItems.push_back( boardItem );
 }
 else
 itemsToAlign.push_back( boardItem );
 }
 
 aItemsToAlign = GetBoundingBoxes( itemsToAlign );
 aLockedItems = GetBoundingBoxes( lockedItems );
 std::sort( aItemsToAlign.begin(), aItemsToAlign.end(), aCompare );
 std::sort( aLockedItems.begin(), aLockedItems.end(), aCompare );
 
 return aItemsToAlign.size();
}
 
 
int ALIGN_DISTRIBUTE_TOOL::AlignTop( const TOOL_EVENT& aEvent )
{
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> itemsToAlign;
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> locked_items;
 
 if( !GetSelections( itemsToAlign, locked_items,
 []( const std::pair<BOARD_ITEM*, BOX2I>& lhs, const std::pair<BOARD_ITEM*, BOX2I>& rhs )
 {
 return ( lhs.second.GetTop() < rhs.second.GetTop() );
 } ) )
 {
 return 0;
 }
 
 BOARD_COMMIT commit( m_frame );
 
 int targetTop = selectTarget( itemsToAlign, locked_items,
 []( const std::pair<BOARD_ITEM*, BOX2I>& aVal )
 {
 return aVal.second.GetTop();
 } );
 
 // Move the selected items
 for( const std::pair<BOARD_ITEM*, BOX2I>& i : itemsToAlign )
 {
 BOARD_ITEM* item = i.first;
 int difference = targetTop - i.second.GetTop();
 
 if( item->GetParent() && item->GetParent()->IsSelected() )
 continue;
 
 // Don't move a pad by itself unless editing the footprint
 if( item->Type() == PCB_PAD_T && m_frame->IsType( FRAME_PCB_EDITOR ) )
 item = item->GetParent();
 
 commit.Stage( item, CHT_MODIFY );
 item->Move( VECTOR2I( 0, difference ) );
 }
 
 commit.Push( _( "Align to Top" ) );
 return 0;
}
 
 
int ALIGN_DISTRIBUTE_TOOL::AlignBottom( const TOOL_EVENT& aEvent )
{
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> itemsToAlign;
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> locked_items;
 
 if( !GetSelections( itemsToAlign, locked_items,
 []( const std::pair<BOARD_ITEM*, BOX2I>& lhs, const std::pair<BOARD_ITEM*, BOX2I>& rhs)
 {
 return ( lhs.second.GetBottom() > rhs.second.GetBottom() );
 } ) )
 {
 return 0;
 }
 
 BOARD_COMMIT commit( m_frame );
 
 int targetBottom = selectTarget( itemsToAlign, locked_items,
 []( const std::pair<BOARD_ITEM*, BOX2I>& aVal )
 {
 return aVal.second.GetBottom();
 } );
 
 // Move the selected items
 for( const std::pair<BOARD_ITEM*, BOX2I>& i : itemsToAlign )
 {
 int difference = targetBottom - i.second.GetBottom();
 BOARD_ITEM* item = i.first;
 
 if( item->GetParent() && item->GetParent()->IsSelected() )
 continue;
 
 // Don't move a pad by itself unless editing the footprint
 if( item->Type() == PCB_PAD_T && m_frame->IsType( FRAME_PCB_EDITOR ) )
 item = item->GetParent();
 
 commit.Stage( item, CHT_MODIFY );
 item->Move( VECTOR2I( 0, difference ) );
 }
 
 commit.Push( _( "Align to Bottom" ) );
 return 0;
}
 
 
int ALIGN_DISTRIBUTE_TOOL::AlignLeft( const TOOL_EVENT& aEvent )
{
 // Because this tool uses bounding boxes and they aren't mirrored even when
 // the view is mirrored, we need to call the other one if mirrored.
 if( getView()->IsMirroredX() )
 return doAlignRight();
 else
 return doAlignLeft();
}
 
 
int ALIGN_DISTRIBUTE_TOOL::doAlignLeft()
{
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> itemsToAlign;
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> locked_items;
 
 if( !GetSelections( itemsToAlign, locked_items,
 []( const std::pair<BOARD_ITEM*, BOX2I>& lhs, const std::pair<BOARD_ITEM*, BOX2I>& rhs )
 {
 return ( lhs.second.GetLeft() < rhs.second.GetLeft() );
 } ) )
 {
 return 0;
 }
 
 BOARD_COMMIT commit( m_frame );
 
 int targetLeft = selectTarget( itemsToAlign, locked_items,
 []( const std::pair<BOARD_ITEM*, BOX2I>& aVal )
 {
 return aVal.second.GetLeft();
 } );
 
 // Move the selected items
 for( const std::pair<BOARD_ITEM*, BOX2I>& i : itemsToAlign )
 {
 int difference = targetLeft - i.second.GetLeft();
 BOARD_ITEM* item = i.first;
 
 if( item->GetParent() && item->GetParent()->IsSelected() )
 continue;
 
 // Don't move a pad by itself unless editing the footprint
 if( item->Type() == PCB_PAD_T && m_frame->IsType( FRAME_PCB_EDITOR ) )
 item = item->GetParent();
 
 commit.Stage( item, CHT_MODIFY );
 item->Move( VECTOR2I( difference, 0 ) );
 }
 
 commit.Push( _( "Align to Left" ) );
 return 0;
}
 
 
int ALIGN_DISTRIBUTE_TOOL::AlignRight( const TOOL_EVENT& aEvent )
{
 // Because this tool uses bounding boxes and they aren't mirrored even when
 // the view is mirrored, we need to call the other one if mirrored.
 if( getView()->IsMirroredX() )
 return doAlignLeft();
 else
 return doAlignRight();
}
 
 
int ALIGN_DISTRIBUTE_TOOL::doAlignRight()
{
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> itemsToAlign;
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> locked_items;
 
 if( !GetSelections( itemsToAlign, locked_items,
 []( const std::pair<BOARD_ITEM*, BOX2I>& lhs, const std::pair<BOARD_ITEM*, BOX2I>& rhs )
 {
 return ( lhs.second.GetRight() > rhs.second.GetRight() );
 } ) )
 {
 return 0;
 }
 
 BOARD_COMMIT commit( m_frame );
 
 int targetRight = selectTarget( itemsToAlign, locked_items,
 []( const std::pair<BOARD_ITEM*, BOX2I>& aVal )
 {
 return aVal.second.GetRight();
 } );
 
 // Move the selected items
 for( const std::pair<BOARD_ITEM*, BOX2I>& i : itemsToAlign )
 {
 int difference = targetRight - i.second.GetRight();
 BOARD_ITEM* item = i.first;
 
 if( item->GetParent() && item->GetParent()->IsSelected() )
 continue;
 
 // Don't move a pad by itself unless editing the footprint
 if( item->Type() == PCB_PAD_T && m_frame->IsType( FRAME_PCB_EDITOR ) )
 item = item->GetParent();
 
 commit.Stage( item, CHT_MODIFY );
 item->Move( VECTOR2I( difference, 0 ) );
 }
 
 commit.Push( _( "Align to Right" ) );
 return 0;
}
 
 
int ALIGN_DISTRIBUTE_TOOL::AlignCenterX( const TOOL_EVENT& aEvent )
{
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> itemsToAlign;
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> locked_items;
 
 if( !GetSelections( itemsToAlign, locked_items,
 []( const std::pair<BOARD_ITEM*, BOX2I>& lhs, const std::pair<BOARD_ITEM*, BOX2I>& rhs )
 {
 return ( lhs.second.Centre().x < rhs.second.Centre().x );
 } ) )
 {
 return 0;
 }
 
 BOARD_COMMIT commit( m_frame );
 
 int targetX = selectTarget( itemsToAlign, locked_items,
 []( const std::pair<BOARD_ITEM*, BOX2I>& aVal )
 {
 return aVal.second.Centre().x;
 } );
 
 // Move the selected items
 for( const std::pair<BOARD_ITEM*, BOX2I>& i : itemsToAlign )
 {
 int difference = targetX - i.second.Centre().x;
 BOARD_ITEM* item = i.first;
 
 if( item->GetParent() && item->GetParent()->IsSelected() )
 continue;
 
 // Don't move a pad by itself unless editing the footprint
 if( item->Type() == PCB_PAD_T && m_frame->IsType( FRAME_PCB_EDITOR ) )
 item = item->GetParent();
 
 commit.Stage( item, CHT_MODIFY );
 item->Move( VECTOR2I( difference, 0 ) );
 }
 
 commit.Push( _( "Align to Middle" ) );
 return 0;
}
 
 
int ALIGN_DISTRIBUTE_TOOL::AlignCenterY( const TOOL_EVENT& aEvent )
{
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> itemsToAlign;
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> locked_items;
 
 if( !GetSelections( itemsToAlign, locked_items,
 []( const std::pair<BOARD_ITEM*, BOX2I>& lhs, const std::pair<BOARD_ITEM*, BOX2I>& rhs )
 {
 return ( lhs.second.Centre().y < rhs.second.Centre().y );
 } ) )
 {
 return 0;
 }
 
 BOARD_COMMIT commit( m_frame );
 
 int targetY = selectTarget( itemsToAlign, locked_items,
 []( const std::pair<BOARD_ITEM*, BOX2I>& aVal )
 {
 return aVal.second.Centre().y;
 } );
 
 // Move the selected items
 for( const std::pair<BOARD_ITEM*, BOX2I>& i : itemsToAlign )
 {
 int difference = targetY - i.second.Centre().y;
 BOARD_ITEM* item = i.first;
 
 if( item->GetParent() && item->GetParent()->IsSelected() )
 continue;
 
 // Don't move a pad by itself unless editing the footprint
 if( item->Type() == PCB_PAD_T && m_frame->IsType( FRAME_PCB_EDITOR ) )
 item = item->GetParent();
 
 commit.Stage( item, CHT_MODIFY );
 item->Move( VECTOR2I( 0, difference ) );
 }
 
 commit.Push( _( "Align to Center" ) );
 return 0;
}
 
 
int ALIGN_DISTRIBUTE_TOOL::DistributeItems( const TOOL_EVENT& aEvent )
{
 PCB_SELECTION& selection = m_selectionTool->RequestSelection(
 []( const VECTOR2I& aPt, GENERAL_COLLECTOR& aCollector,
 PCB_SELECTION_TOOL* sTool )
 {
 sTool->FilterCollectorForMarkers( aCollector );
 sTool->FilterCollectorForHierarchy( aCollector, true );
 sTool->FilterCollectorForFreePads( aCollector );
 },
 m_frame->IsType( FRAME_PCB_EDITOR ) /* prompt user regarding locked items */
 );
 
 // Need at least 3 items to distribute - one at each end and at least on in the middle
 if( selection.Size() < 3 )
 return 0;
 
 BOARD_COMMIT commit( m_frame );
 wxString commitMsg;
 std::vector<std::pair<BOARD_ITEM*, BOX2I>> itemsToDistribute = GetBoundingBoxes( selection );
 
 if( aEvent.Matches( PCB_ACTIONS::distributeHorizontallyCenters.MakeEvent() ) )
 {
 doDistributeCenters( true, itemsToDistribute, commit );
 commitMsg = PCB_ACTIONS::distributeHorizontallyCenters.GetFriendlyName();
 }
 else if( aEvent.Matches( PCB_ACTIONS::distributeHorizontallyGaps.MakeEvent() ) )
 {
 doDistributeGaps( true, itemsToDistribute, commit );
 commitMsg = PCB_ACTIONS::distributeHorizontallyGaps.GetFriendlyName();
 }
 else if( aEvent.Matches( PCB_ACTIONS::distributeVerticallyCenters.MakeEvent() ) )
 {
 doDistributeCenters( false, itemsToDistribute, commit );
 commitMsg = PCB_ACTIONS::distributeVerticallyCenters.GetFriendlyName();
 }
 else
 {
 doDistributeGaps( false, itemsToDistribute, commit );
 commitMsg = PCB_ACTIONS::distributeVerticallyGaps.GetFriendlyName();
 }
 
 commit.Push( commitMsg );
 return 0;
}
 
 
void ALIGN_DISTRIBUTE_TOOL::doDistributeGaps( bool aIsXAxis,
 std::vector<std::pair<BOARD_ITEM*, BOX2I>>& aItems,
 BOARD_COMMIT& aCommit ) const
{
 // Sort by start position.
 // This is a simple way to get the items in a sensible order but it's not perfect.
 // It will fail if, say, there's a huge items that's bigger than the total span of
 // all the other items, but at that point a gap-equalising algorithm probably isn't
 // well-defined anyway.
 std::sort( aItems.begin(), aItems.end(),
 [&]( const std::pair<BOARD_ITEM*, BOX2I>& a, const std::pair<BOARD_ITEM*, BOX2I>& b )
 {
 return aIsXAxis ? a.second.GetLeft() < b.second.GetLeft()
 : a.second.GetTop() < b.second.GetTop();
 } );
 
 // Consruct list of item spans in the relevant axis
 std::vector<std::pair<int, int>> itemSpans;
 itemSpans.reserve( aItems.size() );
 
 for( const auto& [item, box] : aItems )
 {
 const int start = aIsXAxis ? box.GetLeft() : box.GetTop();
 const int end = aIsXAxis ? box.GetRight() : box.GetBottom();
 itemSpans.emplace_back( start, end );
 }
 
 // Get the deltas needed to distribute the items evenly
 const std::vector<int> deltas = GetDeltasForDistributeByGaps( itemSpans );
 
 // Apply the deltas to the items
 for( size_t i = 1; i < aItems.size() - 1; ++i )
 {
 const auto& [item, box] = aItems[i];
 const int delta = deltas[i];
 
 if( delta != 0 )
 {
 const VECTOR2I deltaVec = aIsXAxis ? VECTOR2I( delta, 0 ) : VECTOR2I( 0, delta );
 
 aCommit.Stage( item, CHT_MODIFY );
 item->Move( deltaVec );
 }
 }
}
 
 
void ALIGN_DISTRIBUTE_TOOL::doDistributeCenters( bool aIsXAxis,
 std::vector<std::pair<BOARD_ITEM*, BOX2I>>& aItems,
 BOARD_COMMIT& aCommit ) const
{
 std::sort(
 aItems.begin(), aItems.end(),
 [&]( const std::pair<BOARD_ITEM*, BOX2I>& lhs, const std::pair<BOARD_ITEM*, BOX2I>& rhs )
 {
 const int lhsPos = aIsXAxis ? lhs.second.Centre().x : lhs.second.Centre().y;
 const int rhsPos = aIsXAxis ? rhs.second.Centre().x : rhs.second.Centre().y;
 return lhsPos < rhsPos;
 } );
 
 std::vector<int> itemCenters;
 itemCenters.reserve( aItems.size() );
 
 for( const auto& [item, box] : aItems )
 {
 itemCenters.push_back( aIsXAxis ? box.Centre().x : box.Centre().y );
 }
 
 const std::vector<int> deltas = GetDeltasForDistributeByPoints( itemCenters );
 
 // Apply the deltas to the items
 for( size_t i = 1; i < aItems.size() - 1; ++i )
 {
 const auto& [item, box] = aItems[i];
 const int delta = deltas[i];
 
 if ( delta != 0)
 {
 const VECTOR2I deltaVec = aIsXAxis ? VECTOR2I( delta, 0 ) : VECTOR2I( 0, delta );
 
 aCommit.Stage( item, CHT_MODIFY );
 item->Move( deltaVec );
 }
 }
}
 
 
void ALIGN_DISTRIBUTE_TOOL::setTransitions()
{
 Go( &ALIGN_DISTRIBUTE_TOOL::AlignTop, PCB_ACTIONS::alignTop.MakeEvent() );
 Go( &ALIGN_DISTRIBUTE_TOOL::AlignBottom, PCB_ACTIONS::alignBottom.MakeEvent() );
 Go( &ALIGN_DISTRIBUTE_TOOL::AlignLeft, PCB_ACTIONS::alignLeft.MakeEvent() );
 Go( &ALIGN_DISTRIBUTE_TOOL::AlignRight, PCB_ACTIONS::alignRight.MakeEvent() );
 Go( &ALIGN_DISTRIBUTE_TOOL::AlignCenterX, PCB_ACTIONS::alignCenterX.MakeEvent() );
 Go( &ALIGN_DISTRIBUTE_TOOL::AlignCenterY, PCB_ACTIONS::alignCenterY.MakeEvent() );
 
 Go( &ALIGN_DISTRIBUTE_TOOL::DistributeItems,
 PCB_ACTIONS::distributeHorizontallyCenters.MakeEvent() );
 Go( &ALIGN_DISTRIBUTE_TOOL::DistributeItems,
 PCB_ACTIONS::distributeHorizontallyGaps.MakeEvent() );
 Go( &ALIGN_DISTRIBUTE_TOOL::DistributeItems,
 PCB_ACTIONS::distributeVerticallyCenters.MakeEvent() );
 Go( &ALIGN_DISTRIBUTE_TOOL::DistributeItems,
 PCB_ACTIONS::distributeVerticallyGaps.MakeEvent() );
}