kicad/pcbnew/class_board_connected_item.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
* Copyright (C) 1992-2015 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
*/
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/**
* @file class_board_connected_item.cpp
* @brief BOARD_CONNECTED_ITEM class functions.
*/
#include <fctsys.h>
#include <pcbnew.h>
#include <class_board.h>
#include <class_board_item.h>
BOARD_CONNECTED_ITEM::BOARD_CONNECTED_ITEM( BOARD_ITEM* aParent, KICAD_T idtype ) :
BOARD_ITEM( aParent, idtype ), m_netinfo( &NETINFO_LIST::ORPHANED_ITEM ),
m_Subnet( 0 ), m_ZoneSubnet( 0 )
{
}
BOARD_CONNECTED_ITEM::BOARD_CONNECTED_ITEM( const BOARD_CONNECTED_ITEM& aItem ) :
BOARD_ITEM( aItem ), m_netinfo( aItem.m_netinfo ), m_Subnet( aItem.m_Subnet ),
m_ZoneSubnet( aItem.m_ZoneSubnet )
{
}
bool BOARD_CONNECTED_ITEM::SetNetCode( int aNetCode, bool aNoAssert )
{
// if aNetCode < 0 ( typically NETINFO_LIST::FORCE_ORPHANED )
// or no parent board,
// set the m_netinfo to the dummy NETINFO_LIST::ORPHANED
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BOARD* board = GetBoard();
if( ( aNetCode >= 0 ) && board )
m_netinfo = board->FindNet( aNetCode );
Added NETINFO_MAPPING, to ease saving nets with consecutive net codes (without modifying the net codes during the run time). Now, nets are saved with consecutive net codes (both modern & legacy plugins). Zones are saved together with their nets, without depending on the fact if there are any pads with such net. Therefore validation of zone net names was removed (pcbnew/class_board.cpp). Performed tests: - Changed a pad's net name from empty to existent - ok, name was changed. - Changed a pad's net name from empty to nonexistent - ok, error message is displayed, net name stays empty. - Changed a pad's net name from existent to empty - ok, net name became empty - Changed a pad's net name from existent to nonexistent - ok, error message is displayed, net name is not changed. - Drawn a zone that belongs to a net, then modified schematics so the net does not exist anymore. After reloading the net list, all pads/tracks are updated. Zones still belongs to the net that does not exist in the schematic (but still exists in .kicad_pcb file). After running DRC, the zone becomes not filled. - Undo & redo affects assignment of a polygon to a specific net (you may change net of a polygon, refill it and undo/redo the changes). - KiCad s-expr & legacy, Eagle, P-CAD boards seem to load without any problem (they also contain correct net names assigned to the appropriate pads). All types of board file formats were loaded, then saved in sexpr format and reopened with a KiCad built from the master branch (without my modifications). - A few boards were also saved using the legacy format and were opened with the master KiCad without any issues. - Change a net name for a pad, restore with undo/redo - ok - Remove everything, restore with undo - ok - Remove everything, reload netlist - ok Differences observed between files saved by the master branch KiCad and this one: - list of nets are not saved in any particular order, so net codes may differ - the default net class does not contain the unconnected net
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else
m_netinfo = &NETINFO_LIST::ORPHANED_ITEM;
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if( !aNoAssert )
assert( m_netinfo );
return ( m_netinfo != NULL );
}
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int BOARD_CONNECTED_ITEM::GetClearance( BOARD_CONNECTED_ITEM* aItem ) const
{
NETCLASSPTR myclass = GetNetClass();
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// DO NOT use wxASSERT, because GetClearance is called inside an OnPaint event
// and a call to wxASSERT can crash the application.
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if( myclass )
{
int myClearance = myclass->GetClearance();
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// @todo : after GetNetClass() is reliably not returning NULL, remove the
// tests for if( myclass )
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if( aItem )
{
int hisClearance = aItem->GetClearance();
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return std::max( hisClearance, myClearance );
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}
return myClearance;
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}
else
{
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DBG(printf( "%s: NULL netclass,type %d", __func__, Type() );)
}
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return 0;
}
NETCLASSPTR BOARD_CONNECTED_ITEM::GetNetClass() const
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{
// It is important that this be implemented without any sequential searching.
// Simple array lookups should be fine, performance-wise.
BOARD* board = GetBoard();
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// DO NOT use wxASSERT, because GetNetClass is called inside an OnPaint event
// and a call to wxASSERT can crash the application.
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if( board == NULL ) // Should not occur
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{
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DBG(printf( "%s: NULL board,type %d", __func__, Type() );)
return NETCLASSPTR();
}
NETCLASSPTR netclass;
NETINFO_ITEM* net = board->FindNet( GetNetCode() );
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if( net )
{
netclass = net->GetNetClass();
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//DBG( if(!netclass) printf( "%s: NULL netclass,type %d", __func__, Type() );)
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}
if( netclass )
return netclass;
else
return board->GetDesignSettings().GetDefault();
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}
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wxString BOARD_CONNECTED_ITEM::GetNetClassName() const
{
wxString name;
NETCLASSPTR myclass = GetNetClass();
if( myclass )
name = myclass->GetName();
else
name = NETCLASS::Default;
return name;
}