zones_functions_for_undo_redo.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2009 Jean-Pierre Charras <[email protected]>
 * Copyright (C) 2007-2022 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
 */
 
 
/* These functions are relative to undo redo function, when zones are involved.
 *
 * When a zone outline is modified (or created) this zone, or others zones on the same layer
 * and with the same netcode can change or can be deleted due to the fact overlapping zones are
 * merged. Also, when a zone outline is modified by adding a cutout area, this zone can be
 * converted to more than one area, if the outline is break to 2 or more outlines and therefore
 * new zones are created
 *
 * Due to the complexity of potential changes, and the fact there are only few zones in a board,
 * and a zone has only few segments outlines, the more easy way to undo redo changes is to make
 * a copy of all zones that can be changed and see after zone editing or creation what zones that
 * are really modified, and ones they are modified (changes, deletion or addition)
 */
 
#include <pcb_edit_frame.h>
 
#include <board.h>
#include <zone.h>
#include <zones.h>
#include <zones_functions_for_undo_redo.h>
 
bool ZONE::IsSame( const ZONE& aZoneToCompare )
{
 // compare basic parameters:
 if( GetLayerSet() != aZoneToCompare.GetLayerSet() )
 return false;
 
 if( GetNetCode() != aZoneToCompare.GetNetCode() )
 return false;
 
 if( GetAssignedPriority() != aZoneToCompare.GetAssignedPriority() )
 return false;
 
 // Compare zone specific parameters
 if( GetIsRuleArea() != aZoneToCompare.GetIsRuleArea() )
 return false;
 
 if( GetIsRuleArea() )
 {
 if( GetDoNotAllowCopperPour() != aZoneToCompare.GetDoNotAllowCopperPour() )
 return false;
 
 if( GetDoNotAllowVias() != aZoneToCompare.GetDoNotAllowVias() )
 return false;
 
 if( GetDoNotAllowTracks() != aZoneToCompare.GetDoNotAllowTracks() )
 return false;
 
 if( GetDoNotAllowPads() != aZoneToCompare.GetDoNotAllowPads() )
 return false;
 
 if( GetDoNotAllowFootprints() != aZoneToCompare.GetDoNotAllowFootprints() )
 return false;
 }
 
 if( m_ZoneClearance != aZoneToCompare.m_ZoneClearance )
 return false;
 
 if( m_ZoneMinThickness != aZoneToCompare.GetMinThickness() )
 return false;
 
 if( m_fillMode != aZoneToCompare.GetFillMode() )
 return false;
 
 if( m_PadConnection != aZoneToCompare.m_PadConnection )
 return false;
 
 if( m_thermalReliefGap != aZoneToCompare.m_thermalReliefGap )
 return false;
 
 if( m_thermalReliefSpokeWidth != aZoneToCompare.m_thermalReliefSpokeWidth )
 return false;
 
 if( m_zoneName != aZoneToCompare.m_zoneName )
 return false;
 
 if( m_islandRemovalMode != aZoneToCompare.m_islandRemovalMode )
 return false;
 
 if( m_minIslandArea != aZoneToCompare.m_minIslandArea )
 return false;
 
 
 // Compare outlines
 wxASSERT( m_Poly ); // m_Poly == NULL Should never happen
 wxASSERT( aZoneToCompare.Outline() );
 
 if( Outline() != aZoneToCompare.Outline() ) // Compare vector
 return false;
 
 return true;
}
 
 
void SaveCopyOfZones( PICKED_ITEMS_LIST& aPickList, BOARD* aPcb )
{
 for( ZONE* zone : aPcb->Zones() )
 {
 ZONE* zoneDup = new ZONE( *zone );
 zoneDup->SetParent( aPcb );
 zoneDup->SetParentGroup( nullptr );
 
 ITEM_PICKER picker( nullptr, zone, UNDO_REDO::CHANGED );
 picker.SetLink( zoneDup );
 aPickList.PushItem( picker );
 }
}
 
 
void UpdateCopyOfZonesList( PICKED_ITEMS_LIST& aPickList, PICKED_ITEMS_LIST& aAuxiliaryList,
 BOARD* aPcb )
{
 for( unsigned kk = 0; kk < aPickList.GetCount(); kk++ )
 {
 UNDO_REDO status = aPickList.GetPickedItemStatus( kk );
 
 ZONE* ref = (ZONE*) aPickList.GetPickedItem( kk );
 
 for( unsigned ii = 0; ; ii++ ) // analyse the main picked list
 {
 ZONE* zone = aPcb->GetArea( ii );
 
 if( zone == nullptr )
 {
 /* End of list: the stored item is not found:
 * it must be in aDeletedList:
 * search it and restore initial values
 * or
 * if flagged NEWITEM: remove it definitively
 */
 if( status == UNDO_REDO::NEWITEM )
 {
 delete ref;
 ref = nullptr;
 aPickList.RemovePicker( kk );
 kk--;
 }
 else
 {
 ZONE* zcopy = (ZONE*) aPickList.GetPickedItemLink( kk );
 aPickList.SetPickedItemStatus( UNDO_REDO::DELETED, kk );
 
 wxASSERT_MSG( zcopy != nullptr,
 wxT( "UpdateCopyOfZonesList() error: link = NULL" ) );
 
 ref->SwapItemData( zcopy );
 
 // the copy was deleted; the link does not exists now.
 aPickList.SetPickedItemLink( nullptr, kk );
 delete zcopy;
 }
 
 // Remove this item from aAuxiliaryList, mainly for tests purpose
 bool notfound = true;
 
 for( unsigned nn = 0; nn < aAuxiliaryList.GetCount(); nn++ )
 {
 if( ref != nullptr && aAuxiliaryList.GetPickedItem( nn ) == ref )
 {
 aAuxiliaryList.RemovePicker( nn );
 notfound = false;
 break;
 }
 }
 
 if( notfound ) // happens when the new zone overlaps an existing zone
 // and these zones are combined
 {
#if defined(DEBUG)
 printf( "UpdateCopyOfZonesList(): item not found in aAuxiliaryList,"
 "combined with another zone\n" );
 fflush(nullptr);
#endif
 }
 
 break;
 }
 
 if( zone == ref ) // picked zone found
 {
 if( aPickList.GetPickedItemStatus( kk ) != UNDO_REDO::NEWITEM )
 {
 ZONE* zcopy = (ZONE*) aPickList.GetPickedItemLink( kk );
 
 if( zone->IsSame( *zcopy ) ) // Remove picked, because no changes
 {
 delete zcopy; // Delete copy
 aPickList.RemovePicker( kk );
 kk--;
 }
 }
 
 break;
 }
 }
 }
 
 // Add new zones in main pick list, and remove pickers from Auxiliary List
 for( unsigned ii = 0; ii < aAuxiliaryList.GetCount(); )
 {
 if( aAuxiliaryList.GetPickedItemStatus( ii ) == UNDO_REDO::NEWITEM )
 {
 ITEM_PICKER picker = aAuxiliaryList.GetItemWrapper( ii );
 aPickList.PushItem( picker );
 aAuxiliaryList.RemovePicker( ii );
 }
 else if( aAuxiliaryList.GetPickedItemStatus( ii ) == UNDO_REDO::DELETED )
 {
 delete aAuxiliaryList.GetPickedItemLink( ii );
 aAuxiliaryList.RemovePicker( ii );
 }
 else
 {
 ii++;
 }
 }
 
 // Should not occur:
 wxASSERT_MSG( aAuxiliaryList.GetCount() == 0,
 wxT( "UpdateCopyOfZonesList() error: aAuxiliaryList not empty." ) );
}