kicad/eeschema/tools/ee_selection.cpp

118 lines
3.4 KiB
C++

/*
* 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 <tools/ee_selection.h>
#include <sch_item.h>
#include <sch_reference_list.h>
#include <sch_sheet_path.h>
#include <sch_symbol.h>
#include <sch_sheet.h>
EE_SELECTION::EE_SELECTION( SCH_SCREEN* aScreen ) :
SELECTION()
{
m_screen = aScreen;
}
EDA_ITEM* EE_SELECTION::GetTopLeftItem( bool onlyModules ) const
{
EDA_ITEM* topLeftConnectedItem = nullptr;
VECTOR2I topLeftConnectedPos;
EDA_ITEM* topLeftItem = nullptr;
VECTOR2I topLeftPos;
auto processItem =
[]( EDA_ITEM* aItem, EDA_ITEM** aCurrent, VECTOR2I* aCurrentPos )
{
VECTOR2I pos = aItem->GetPosition();
if( ( *aCurrent == nullptr )
|| ( pos.x < aCurrentPos->x )
|| ( pos.x == aCurrentPos->x && pos.y < aCurrentPos->y ) )
{
*aCurrent = aItem;
*aCurrentPos = pos;
}
};
// Find the leftmost (smallest x coord) and highest (smallest y with the smallest x) item
// in the selection
for( EDA_ITEM* item : m_items )
{
SCH_ITEM* sch_item = dynamic_cast<SCH_ITEM*>( item );
LIB_PIN* lib_pin = dynamic_cast<LIB_PIN*>( item );
// Prefer connection points (which should remain on grid)
if( ( sch_item && sch_item->IsConnectable() ) || lib_pin )
processItem( item, &topLeftConnectedItem, &topLeftConnectedPos );
processItem( item, &topLeftItem, &topLeftPos );
}
if( topLeftConnectedItem )
return topLeftConnectedItem;
else
return topLeftItem;
}
BOX2I EE_SELECTION::GetBoundingBox() const
{
BOX2I bbox;
for( EDA_ITEM* item : m_items )
{
if( item->Type() == SCH_SYMBOL_T )
{
// Quiet Coverity warning. The LIB_SYMBOL field container is a Boost ptr_vector
// so the exception is legit.
try
{
bbox.Merge( static_cast<SCH_SYMBOL*>( item )->GetBoundingBox() );
}
catch( const boost::bad_pointer& )
{
wxFAIL_MSG( "Invalid pointer." );
}
}
else if( item->Type() == SCH_SHEET_T )
{
bbox.Merge( static_cast<SCH_SHEET*>( item )->GetBodyBoundingBox() );
}
else
{
bbox.Merge( item->GetBoundingBox() );
}
}
return bbox;
}