kicad/pcbnew/class_netinfolist.cpp

172 lines
4.4 KiB
C++

/***********************/
/**** class_netinfolist.cpp ****/
/***********************/
#include "fctsys.h"
#include "gr_basic.h"
#include "common.h"
#include "class_drawpanel.h"
#include "pcbnew.h"
#include "autorout.h"
// Constructor and destructor
NETINFO_LIST::NETINFO_LIST( BOARD* aParent )
{
m_Parent = aParent;
}
NETINFO_LIST::~NETINFO_LIST()
{
DeleteData();
}
/** Function GetItem
* @param aNetcode = netcode to identify a given NETINFO_ITEM
* @return a NETINFO_ITEM pointer to the selected NETINFO_ITEM by its netcode, or NULL if not found
*/
NETINFO_ITEM* NETINFO_LIST::GetNetItem( int aNetcode )
{
if( aNetcode < 0 || ( aNetcode > (int) ( GetNetsCount() - 1 ) ) )
return NULL;
return m_NetBuffer[aNetcode];
}
/** Function DeleteData
* delete the list of nets (and free memory)
*/
void NETINFO_LIST::DeleteData()
{
for( unsigned ii = 0; ii < GetNetsCount(); ii++ )
delete m_NetBuffer[ii];
m_NetBuffer.clear();
m_PadsFullList.clear();
}
/**
* Function Append
* adds \a aNewElement to the end of the list.
*/
void NETINFO_LIST::AppendNet( NETINFO_ITEM* aNewElement )
{
m_NetBuffer.push_back( aNewElement );
}
/* sort function, to sort pad list by netnames
*/
static bool PadlistSortByNetnames( const D_PAD* a, const D_PAD* b )
{
return ( a->GetNetname().Cmp( b->GetNetname() ) ) < 0;
}
/*****************************************************/
void NETINFO_LIST::BuildListOfNets()
/*****************************************************/
/**
* 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 equipotents 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
*/
{
D_PAD* pad;
int nodes_count = 0;
NETINFO_ITEM* net_item;
DeleteData(); // Remove all nets info and free memory
// Create and add the "unconnected net", always existing,
// used to handle pads and tracks that are not member of a "real" net
net_item = new NETINFO_ITEM( m_Parent );
AppendNet( net_item );
/* Build the PAD list, sorted by net */
Build_Pads_Full_List();
/* Build netnames list, and create a netcode for each netname */
D_PAD* last_pad = NULL;
int netcode = 0;
for( unsigned ii = 0; ii < m_PadsFullList.size(); ii++ )
{
pad = m_PadsFullList[ii];
if( pad->GetNetname().IsEmpty() ) // pad not connected
{
pad->SetNet( 0 );
continue;
}
/* if the current netname was already found: add pad to the current net_item ,
* else create a new net_code and a new net_item
*/
if( last_pad == NULL || ( pad->GetNetname() != last_pad->GetNetname() ) ) // create a new net_code
{
netcode++;
net_item = new NETINFO_ITEM( m_Parent );
net_item->SetNet( netcode );
net_item->SetNetname( pad->GetNetname() );
AppendNet( net_item );
}
pad->SetNet( netcode );
net_item->m_ListPad.push_back( pad );
nodes_count ++;
last_pad = pad;
}
m_Parent->m_NbNodes = nodes_count;
m_Parent->m_Status_Pcb |= NET_CODES_OK;
m_Parent->SetAreasNetCodesFromNetNames();
}
/*****************************************/
void NETINFO_LIST::Build_Pads_Full_List()
/*****************************************/
/** Function Build_Pads_Full_List
* Create the pad list, sorted by net names
* initialise:
* 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)
*/
{
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 rastnest computation */
for( MODULE* module = m_Parent->m_Modules; module; module = module->Next() )
{
for( D_PAD* pad = module->m_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;
}