kicad/pcbnew/class_netinfolist.cpp

324 lines
9.1 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 1992-2014 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
*/
/**
* @file class_netinfolist.cpp
*/
#include <fctsys.h>
#include <gr_basic.h>
#include <common.h>
#include <class_drawpanel.h>
#include <macros.h>
#include <pcbnew.h>
#include <class_board.h>
#include <class_module.h>
#include <class_pad.h>
#include <class_track.h>
#include <class_zone.h>
#include <class_netinfo.h>
// Constructor and destructor
NETINFO_LIST::NETINFO_LIST( BOARD* aParent ) : m_Parent( aParent )
{
// Make sure that the unconnected net has number 0
AppendNet( new NETINFO_ITEM( aParent, wxEmptyString, 0 ) );
m_newNetCode = 0;
}
NETINFO_LIST::~NETINFO_LIST()
{
clear();
}
void NETINFO_LIST::clear()
{
NETNAMES_MAP::iterator it, itEnd;
for( it = m_netNames.begin(), itEnd = m_netNames.end(); it != itEnd; ++it )
delete it->second;
m_PadsFullList.clear();
m_netNames.clear();
m_netCodes.clear();
m_newNetCode = 0;
}
void NETINFO_LIST::RemoveNet( NETINFO_ITEM* aNet )
{
for( NETCODES_MAP::iterator i = m_netCodes.begin(); i != m_netCodes.end(); ++i )
{
if ( i->second == aNet )
{
m_netCodes.erase(i);
break;
}
}
for( NETNAMES_MAP::iterator i = m_netNames.begin(); i != m_netNames.end(); ++i )
{
if ( i->second == aNet )
{
m_netNames.erase(i);
break;
}
}
m_newNetCode = std::min( m_newNetCode, aNet->m_NetCode - 1 );
}
void NETINFO_LIST::AppendNet( NETINFO_ITEM* aNewElement )
{
// if there is a net with such name then just assign the correct number
NETINFO_ITEM* sameName = GetNetItem( aNewElement->GetNetname() );
if( sameName != NULL )
{
aNewElement->m_NetCode = sameName->GetNet();
return;
}
// be sure that net codes are consecutive
// negative net code means that it has to be auto assigned
else if( ( aNewElement->m_NetCode != (int) m_netCodes.size() ) || ( aNewElement->m_NetCode < 0 ) )
{
aNewElement->m_NetCode = getFreeNetCode();
}
// net names & codes are supposed to be unique
assert( GetNetItem( aNewElement->GetNetname() ) == NULL );
assert( GetNetItem( aNewElement->GetNet() ) == NULL );
// add an entry for fast look up by a net name using a map
m_netNames.insert( std::make_pair( aNewElement->GetNetname(), aNewElement ) );
m_netCodes.insert( std::make_pair( aNewElement->GetNet(), aNewElement ) );
}
/* sort function, to sort pad list by netnames
* this is a case sensitive sort.
* DO NOT change it because NETINFO_ITEM* BOARD::FindNet( const wxString& aNetname )
* when search a net by its net name does a binary search
* and expects to have a nets list sorted by an alphabetic case sensitive sort
*/
static bool padlistSortByNetnames( const D_PAD* a, const D_PAD* b )
{
return ( a->GetNetname().Cmp( b->GetNetname() ) ) < 0;
}
/**
* Compute and update the net_codes for PADS et and equipots (.m_NetCode member)
* net_codes are >= 1 (net_code = 0 means not connected)
* Update the net buffer
* Must be called after editing pads (netname, or deleting) or after read a netlist
* set to 1 flag NET_CODE_OK of m_Pcb->m_Status_Pcb;
* m_Pcb->m_NbNodes and m_Pcb->m_NbNets are updated
* Be aware NETINFO_ITEM* BOARD::FindNet( const wxString& aNetname )
* when search a net by its net name does a binary search
* and expects to have a nets list sorted by an alphabetic case sensitive sort
* So do not change Build_Pads_Full_List() which build a sorted list of pads
*/
void NETINFO_LIST::buildListOfNets()
{
D_PAD* pad;
int nodes_count = 0;
// Build the PAD list, sorted by net
buildPadsFullList();
// Restore the initial state of NETINFO_ITEMs
for( NETINFO_LIST::iterator net( begin() ), netEnd( end() ); net != netEnd; ++net )
net->Clear();
// Assign pads to appropriate NETINFO_ITEMs
for( unsigned ii = 0; ii < m_PadsFullList.size(); ii++ )
{
pad = m_PadsFullList[ii];
if( pad->GetNetCode() == NETINFO_LIST::UNCONNECTED ) // pad not connected
continue;
// Add pad to the appropriate list of pads
NETINFO_ITEM* net = pad->GetNet();
// it should not be possible for BOARD_CONNECTED_ITEM to return NULL as a result of GetNet()
wxASSERT( net );
if( net )
net->m_PadInNetList.push_back( pad );
++nodes_count;
}
m_Parent->SetNodeCount( nodes_count );
m_Parent->SynchronizeNetsAndNetClasses( );
m_Parent->m_Status_Pcb |= NET_CODES_OK;
m_Parent->SetAreasNetCodesFromNetNames();
}
#if defined(DEBUG)
void NETINFO_LIST::Show() const
{
int i = 0;
NETNAMES_MAP::const_iterator it, itEnd;
for( it = m_netNames.begin(), itEnd = m_netNames.end(); it != itEnd; ++it )
{
printf( "[%d]: netcode:%d netname:<%s>\n",
i++, it->second->GetNet(),
TO_UTF8( it->second->GetNetname() ) );
}
}
#endif
void NETINFO_LIST::buildPadsFullList()
{
/*
* initialize:
* m_Pads (list of pads)
* set m_Status_Pcb = LISTE_PAD_OK;
* also clear m_Pcb->m_FullRatsnest that could have bad data
* (m_Pcb->m_FullRatsnest uses pointer to pads)
* Be aware NETINFO_ITEM* BOARD::FindNet( const wxString& aNetname )
* when search a net by its net name does a binary search
* and expects to have a nets list sorted by an alphabetic case sensitive sort
* So do not change the sort function used here
*/
if( m_Parent->m_Status_Pcb & LISTE_PAD_OK )
return;
// empty the old list
m_PadsFullList.clear();
m_Parent->m_FullRatsnest.clear();
// Clear variables used in ratsnest computation
for( MODULE* module = m_Parent->m_Modules; module; module = module->Next() )
{
for( D_PAD* pad = module->Pads(); pad; pad = pad->Next() )
{
m_PadsFullList.push_back( pad );
pad->SetSubRatsnest( 0 );
pad->SetParent( module );
}
}
// Sort pad list per net
sort( m_PadsFullList.begin(), m_PadsFullList.end(), padlistSortByNetnames );
m_Parent->m_Status_Pcb = LISTE_PAD_OK;
}
int NETINFO_LIST::getFreeNetCode()
{
do {
if( m_newNetCode < 0 )
m_newNetCode = 0;
} while( m_netCodes.count( ++m_newNetCode ) != 0 );
return m_newNetCode;
}
int NETINFO_MAPPING::Translate( int aNetCode ) const
{
std::map<int, int>::const_iterator value = m_netMapping.find( aNetCode );
if( value != m_netMapping.end() )
return value->second;
// There was no entry for the given net code
return aNetCode;
}
void NETINFO_MAPPING::Update()
{
// Collect all the used nets
std::set<int> nets;
// Be sure that the unconnected gets 0 and is mapped as 0
nets.insert( 0 );
// Zones
for( int i = 0; i < m_board->GetAreaCount(); ++i )
nets.insert( m_board->GetArea( i )->GetNetCode() );
// Tracks
for( TRACK* track = m_board->m_Track; track; track = track->Next() )
nets.insert( track->GetNetCode() );
// Modules/pads
for( MODULE* module = m_board->m_Modules; module; module = module->Next() )
{
for( D_PAD* pad = module->Pads().GetFirst(); pad; pad = pad->Next() )
{
nets.insert( pad->GetNetCode() );
}
}
// Segzones
for( SEGZONE* zone = m_board->m_Zone; zone; zone = zone->Next() )
nets.insert( zone->GetNetCode() );
// Prepare the new mapping
m_netMapping.clear();
// Now the nets variable stores all the used net codes (not only for pads) and we are ready to
// assign new consecutive net numbers
int newNetCode = 0;
for( std::set<int>::const_iterator it = nets.begin(), itEnd = nets.end(); it != itEnd; ++it )
m_netMapping[*it] = newNetCode++;
}
NETINFO_ITEM* NETINFO_MAPPING::iterator::operator*() const
{
return m_mapping->m_board->FindNet( m_iterator->first );
}
NETINFO_ITEM* NETINFO_MAPPING::iterator::operator->() const
{
return m_mapping->m_board->FindNet( m_iterator->first );
}
const int NETINFO_LIST::UNCONNECTED = 0;
const int NETINFO_LIST::ORPHANED = -1;
NETINFO_ITEM NETINFO_LIST::ORPHANED_ITEM = NETINFO_ITEM( NULL, wxEmptyString, NETINFO_LIST::UNCONNECTED );