kicad/eeschema/netlist_object.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2016 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2013 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 1992-2016 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 netlist_object.cpp
* @brief Class NETLIST_OBJECT to handle 1 item connected (in netlist and erc calculations)
*/
#include <fctsys.h>
#include <macros.h>
#include <list>
#include <sch_component.h>
#include <sch_connection.h>
#include <netlist_object.h>
#include <sch_edit_frame.h>
#include <schematic.h>
#if defined(DEBUG)
#include <iostream>
const char* ShowType( NETLIST_ITEM aType )
{
const char* ret;
switch( aType )
{
case NETLIST_ITEM::SEGMENT:
ret = "segment"; break;
case NETLIST_ITEM::BUS:
ret = "bus"; break;
case NETLIST_ITEM::JUNCTION:
ret = "junction"; break;
case NETLIST_ITEM::LABEL:
ret = "label"; break;
case NETLIST_ITEM::HIERLABEL:
ret = "hierlabel"; break;
case NETLIST_ITEM::GLOBLABEL:
ret = "glabel"; break;
case NETLIST_ITEM::BUSLABELMEMBER:
ret = "buslblmember"; break;
case NETLIST_ITEM::HIERBUSLABELMEMBER:
ret = "hierbuslblmember"; break;
case NETLIST_ITEM::GLOBBUSLABELMEMBER:
ret = "gbuslblmember"; break;
case NETLIST_ITEM::SHEETBUSLABELMEMBER:
ret = "sbuslblmember"; break;
case NETLIST_ITEM::SHEETLABEL:
ret = "sheetlabel"; break;
case NETLIST_ITEM::PINLABEL:
ret = "pinlabel"; break;
case NETLIST_ITEM::PIN:
ret = "pin"; break;
case NETLIST_ITEM::NOCONNECT:
ret = "noconnect"; break;
default:
ret = "??"; break;
}
return ret;
}
void NETLIST_OBJECT::Show( std::ostream& out, int ndx ) const
{
wxString path = m_SheetPath.PathHumanReadable();
out << "<netItem ndx=\"" << ndx << '"' <<
" type=\"" << ShowType( m_Type ) << '"' <<
" netCode=\"" << GetNet() << '"' <<
" sheet=\"" << TO_UTF8( path ) << '"' <<
">\n";
out << " <start " << m_Start << "/> <end " << m_End << "/>\n";
if( !m_Label.IsEmpty() )
out << " <label>" << m_Label.mb_str() << "</label>\n";
out << " <sheetpath>" << m_SheetPath.PathHumanReadable().mb_str() << "</sheetpath>\n";
switch( m_Type )
{
case NETLIST_ITEM::PIN:
/* GetRef() needs to be const
out << " <refOfComp>" << GetComponentParent()->GetRef(&m_SheetPath).mb_str()
<< "</refOfComp>\n";
*/
if( m_Comp )
m_Comp->Show( 1, out );
break;
default:
// not all the m_Comp classes have working Show functions.
;
}
/* was segfault-ing
if( m_Comp )
m_Comp->Show( 1, out ); // labels may not have good Show() funcs?
else
out << " m_Comp==NULL\n";
*/
out << "</netItem>\n";
}
#endif
NETLIST_OBJECT::NETLIST_OBJECT()
{
m_Type = NETLIST_ITEM::ITEM_UNSPECIFIED; /* Type of this item (see NETLIST_ITEM_T enum) */
m_Comp = NULL; /* Pointer on the library item that created this net object
* (the parent)*/
m_Link = NULL; /* For SCH_SHEET_PIN:
* Pointer to the hierarchy sheet that contains this
* SCH_SHEET_PIN For Pins: pointer to the component that
* contains this pin
*/
m_Flag = 0; /* flag used in calculations */
m_netCode = 0; /* net code for all items except BUS labels because a BUS
* label has as many net codes as bus members
*/
m_BusNetCode = 0; /* Used for BUS connections */
m_Member = 0; /* for labels type NETLIST_ITEM::BUSLABELMEMBER ( bus member created
* from the BUS label ) member number
*/
m_ConnectionType = NET_CONNECTION::UNCONNECTED;
m_ElectricalPinType =
ELECTRICAL_PINTYPE::PT_INPUT; /* Has meaning only for Pins: electrical type of the pin
* used to detect conflicts between pins in ERC
*/
m_netNameCandidate = NULL; /* a pointer to a NETLIST_OBJECT type label connected to this
* object used to give a name to the net
*/
}
// Copy constructor
NETLIST_OBJECT::NETLIST_OBJECT( NETLIST_OBJECT& aSource )
{
*this = aSource;
}
NETLIST_OBJECT::~NETLIST_OBJECT()
{
}
// return true if the object is a label of any type
bool NETLIST_OBJECT::IsLabelType() const
{
return m_Type == NETLIST_ITEM::LABEL || m_Type == NETLIST_ITEM::GLOBLABEL
|| m_Type == NETLIST_ITEM::HIERLABEL || m_Type == NETLIST_ITEM::BUSLABELMEMBER
|| m_Type == NETLIST_ITEM::GLOBBUSLABELMEMBER
|| m_Type == NETLIST_ITEM::HIERBUSLABELMEMBER || m_Type == NETLIST_ITEM::PINLABEL;
}
bool NETLIST_OBJECT::IsLabelConnected( NETLIST_OBJECT* aNetItem )
{
if( aNetItem == this ) // Don't compare the same net list object.
return false;
NETLIST_ITEM at = m_Type;
NETLIST_ITEM bt = aNetItem->m_Type;
if( ( at == NETLIST_ITEM::HIERLABEL || at == NETLIST_ITEM::HIERBUSLABELMEMBER )
&& ( bt == NETLIST_ITEM::SHEETLABEL || bt == NETLIST_ITEM::SHEETBUSLABELMEMBER ) )
{
if( m_SheetPath == aNetItem->m_SheetPathInclude )
{
return true; //connected!
}
}
else if( ( at == NETLIST_ITEM::GLOBLABEL ) && ( bt == NETLIST_ITEM::GLOBLABEL ) )
{
if( m_Label == aNetItem->m_Label )
return true; //connected!
}
return false; //these two are unconnected
}
void NETLIST_OBJECT::ConvertBusToNetListItems( NETLIST_OBJECT_LIST& aNetListItems )
{
SCH_CONNECTION conn;
wxCHECK_RET( conn.IsBusLabel( m_Label ),
wxT( "<" ) + m_Label + wxT( "> is not a valid bus label." ) );
if( m_Type == NETLIST_ITEM::HIERLABEL )
m_Type = NETLIST_ITEM::HIERBUSLABELMEMBER;
else if( m_Type == NETLIST_ITEM::GLOBLABEL )
m_Type = NETLIST_ITEM::GLOBBUSLABELMEMBER;
else if( m_Type == NETLIST_ITEM::SHEETLABEL )
m_Type = NETLIST_ITEM::SHEETBUSLABELMEMBER;
else if( m_Type == NETLIST_ITEM::LABEL )
m_Type = NETLIST_ITEM::BUSLABELMEMBER;
else
wxCHECK_RET( false, wxT( "Net list object type is not valid." ) );
// NOTE: all netlist objects generated from a single bus definition need to have different
// member codes set. For bus vectors, the member code matches the vector index, but for
// bus groups (including with nested vectors) the code is something arbitrary.
long member_offset = 0;
auto alias = static_cast<SCH_ITEM*>( m_Comp )->Schematic()->GetBusAlias( m_Label );
wxString group_name;
bool self_set = false;
std::vector<wxString> bus_contents_vec;
if( alias || SCH_CONNECTION::ParseBusGroup( m_Label, &group_name, &bus_contents_vec ) )
{
if( alias )
{
for( const wxString& member : alias->Members() )
bus_contents_vec.emplace_back( member );
}
// For named bus groups, like "USB{DP DM}"
wxString group_prefix = ( group_name != "" ) ? ( group_name + "." ) : "";
std::list<wxString> bus_contents( bus_contents_vec.begin(), bus_contents_vec.end() );
for( const auto& bus_member : bus_contents )
{
wxString prefix;
std::vector<wxString> members;
// Nested bus vector inside a bus group
if( SCH_CONNECTION::ParseBusVector( bus_member, &prefix, &members ) )
{
long begin, end;
prefix = group_prefix + prefix;
begin = conn.VectorStart();
end = conn.VectorEnd();
if( !self_set )
{
m_Label = members[0];
m_Member = ( begin++ ) + ( member_offset++ );
self_set = true;
begin++;
}
fillBusVector( aNetListItems, prefix, begin, end, member_offset );
member_offset += std::abs( end - begin );
}
else if( auto nested_alias = static_cast<SCH_ITEM*>( m_Comp )->Schematic()->GetBusAlias(
bus_member ) )
{
// Nested alias inside a group
for( const auto& alias_member : nested_alias->Members() )
{
bus_contents.push_back( alias_member );
}
}
else
{
if( !self_set )
{
m_Label = group_prefix + bus_member;
m_Member = member_offset++;
self_set = true;
}
else
{
auto item = new NETLIST_OBJECT( *this );
item->m_Label = group_prefix + bus_member;
item->m_Member = member_offset++;
aNetListItems.push_back( item );
}
}
}
}
else if( SCH_CONNECTION::ParseBusVector( m_Label, &group_name, &bus_contents_vec ) )
{
long begin = conn.VectorStart();
long end = conn.VectorEnd();
m_Label = bus_contents_vec[0];
m_Member = begin;
fillBusVector( aNetListItems, group_name, begin + 1, end, 0 );
}
}
void NETLIST_OBJECT::fillBusVector( NETLIST_OBJECT_LIST& aNetListItems,
wxString aName, long aBegin, long aEnd, long aOffset )
{
for( long member = aBegin; member <= aEnd; member++ )
{
auto item = new NETLIST_OBJECT( *this );
item->m_Label = aName;
item->m_Label << member;
item->m_Member = member;
aNetListItems.push_back( item );
}
}
bool NETLIST_OBJECT::IsLabelGlobal() const
{
// return true if the object is a global label
// * a actual global label
// * a pin label coming from a invisible power pin
return ( m_Type == NETLIST_ITEM::PINLABEL ) || ( m_Type == NETLIST_ITEM::GLOBLABEL )
|| ( m_Type == NETLIST_ITEM::GLOBBUSLABELMEMBER );
}
bool NETLIST_OBJECT::IsLabelBusMemberType() const
{
// return true if the object is a bus label member build from a
// schematic bus label (like label[xx..yy)
// They are labels with very specific properties, especially for connection
// between them: 2 bus label members can be connected only
// if they have the same member value.
return ( m_Type == NETLIST_ITEM::SHEETBUSLABELMEMBER )
|| ( m_Type == NETLIST_ITEM::BUSLABELMEMBER )
|| ( m_Type == NETLIST_ITEM::HIERBUSLABELMEMBER )
|| ( m_Type == NETLIST_ITEM::GLOBBUSLABELMEMBER );
}
/*
* return the net name of the item
*/
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wxString NETLIST_OBJECT::GetNetName() const
{
if( m_netNameCandidate == NULL )
return wxEmptyString;
wxString netName;
if( m_netNameCandidate->m_Type == NETLIST_ITEM::PIN )
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return GetShortNetName();
if( !m_netNameCandidate->IsLabelGlobal() )
{
// usual net name, prefix it by the sheet path
netName = m_netNameCandidate->m_SheetPath.PathHumanReadable();
}
netName += m_netNameCandidate->m_Label;
return netName;
}
/**
* return the short net name of the item i.e. the net name
* from the "best" label without any prefix.
* 2 different nets can have the same short name
*/
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wxString NETLIST_OBJECT::GetShortNetName() const
{
if( m_netNameCandidate == NULL )
return wxEmptyString;
wxString netName;
if( m_netNameCandidate->m_Type == NETLIST_ITEM::PIN )
{
SCH_COMPONENT* link = m_netNameCandidate->GetComponentParent();
if( link ) // Should be always true
{
netName = wxT("Net-(");
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netName << link->GetRef( &m_netNameCandidate->m_SheetPath );
netName << wxT("-Pad") << m_netNameCandidate->m_PinNum << wxT(")");
}
}
else
netName = m_netNameCandidate->m_Label;
return netName;
}
/**
* Set m_netNameCandidate to a connected item which will
* be used to calcule the net name of the item
* Obviously the candidate can be only a label
* If there is no label on the net, a pad name will be
* used to build a net name (something like Cmp<REF>_Pad<PAD_NAME>
* @param aCandidate = the connected item candidate
*/
void NETLIST_OBJECT::SetNetNameCandidate( NETLIST_OBJECT* aCandidate )
{
switch( aCandidate->m_Type )
{
case NETLIST_ITEM::HIERLABEL:
case NETLIST_ITEM::LABEL:
case NETLIST_ITEM::PINLABEL:
case NETLIST_ITEM::GLOBLABEL:
case NETLIST_ITEM::GLOBBUSLABELMEMBER:
case NETLIST_ITEM::SHEETBUSLABELMEMBER:
case NETLIST_ITEM::PIN:
m_netNameCandidate = aCandidate;
break;
default:
break;
}
}
const wxString NETLIST_OBJECT::GetPinNameText() const
{
wxString name;
// returns the pin name, for NETLIST_ITEM::PIN (usual pin) item.
if( m_Type == NETLIST_ITEM::PIN )
{
name = static_cast<LIB_PIN*>( m_Comp )->GetName();
if( name == "~" ) //empty name
name = wxEmptyString;
}
return name;
}