pl_selection.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2019 CERN
 * Copyright (C) 2019-2022 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, 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 <eda_item.h>
#include <tools/pl_selection.h>
 
 
EDA_ITEM* PL_SELECTION::GetTopLeftItem( bool onlyModules ) const
{
 EDA_ITEM* topLeftItem = nullptr;
 BOX2I topLeftItemBB;
 
 // find the leftmost (smallest x coord) and highest (smallest y with the smallest x) item in the selection
 for( EDA_ITEM* item : m_items )
 {
 BOX2I currentItemBB = item->GetBoundingBox();
 
 if( topLeftItem == nullptr )
 {
 topLeftItem = item;
 topLeftItemBB = currentItemBB;
 }
 else if( currentItemBB.GetLeft() < topLeftItemBB.GetLeft() )
 {
 topLeftItem = item;
 topLeftItemBB = currentItemBB;
 }
 else if( topLeftItemBB.GetLeft() == currentItemBB.GetLeft()
 && currentItemBB.GetTop() < topLeftItemBB.GetTop() )
 {
 topLeftItem = item;
 topLeftItemBB = currentItemBB;
 }
 }
 
 return topLeftItem;
}