kicad/eeschema/sch_bus_entry.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2004 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2004-2019 KiCad Developers, see AUTHORS.txt for contributors.
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*
* 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 <fctsys.h>
#include <gr_basic.h>
#include <macros.h>
#include <sch_draw_panel.h>
#include <trigo.h>
#include <common.h>
#include <richio.h>
#include <plotter.h>
#include <bitmaps.h>
#include <eeschema_config.h>
#include <general.h>
#include <sch_bus_entry.h>
#include <sch_line.h>
#include <sch_text.h>
SCH_BUS_ENTRY_BASE::SCH_BUS_ENTRY_BASE( KICAD_T aType, const wxPoint& pos, char shape ) :
SCH_ITEM( NULL, aType )
{
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m_pos = pos;
m_size.x = 100;
m_size.y = 100;
if( shape == '/' )
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m_size.y = -100;
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m_isDanglingStart = m_isDanglingEnd = true;
}
SCH_BUS_WIRE_ENTRY::SCH_BUS_WIRE_ENTRY( const wxPoint& pos, char shape ) :
SCH_BUS_ENTRY_BASE( SCH_BUS_WIRE_ENTRY_T, pos, shape )
{
m_Layer = LAYER_WIRE;
m_connected_bus_item = nullptr;
}
SCH_BUS_BUS_ENTRY::SCH_BUS_BUS_ENTRY( const wxPoint& pos, char shape ) :
SCH_BUS_ENTRY_BASE( SCH_BUS_BUS_ENTRY_T, pos, shape )
{
m_Layer = LAYER_BUS;
m_connected_bus_items[0] = nullptr;
m_connected_bus_items[1] = nullptr;
}
EDA_ITEM* SCH_BUS_WIRE_ENTRY::Clone() const
{
return new SCH_BUS_WIRE_ENTRY( *this );
}
EDA_ITEM* SCH_BUS_BUS_ENTRY::Clone() const
{
return new SCH_BUS_BUS_ENTRY( *this );
}
bool SCH_BUS_ENTRY_BASE::doIsConnected( const wxPoint& aPosition ) const
{
return ( m_pos == aPosition || m_End() == aPosition );
}
wxPoint SCH_BUS_ENTRY_BASE::m_End() const
{
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return wxPoint( m_pos.x + m_size.x, m_pos.y + m_size.y );
}
void SCH_BUS_ENTRY_BASE::SwapData( SCH_ITEM* aItem )
{
SCH_BUS_ENTRY_BASE* item = dynamic_cast<SCH_BUS_ENTRY_BASE*>( aItem );
wxCHECK_RET( item, wxT( "Cannot swap bus entry data with invalid item." ) );
std::swap( m_pos, item->m_pos );
std::swap( m_size, item->m_size );
}
void SCH_BUS_ENTRY_BASE::ViewGetLayers( int aLayers[], int& aCount ) const
{
aCount = 2;
aLayers[0] = Type() == SCH_BUS_BUS_ENTRY_T ? LAYER_BUS : LAYER_WIRE;
aLayers[1] = LAYER_SELECTION_SHADOWS;
}
const EDA_RECT SCH_BUS_ENTRY_BASE::GetBoundingBox() const
{
EDA_RECT box;
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box.SetOrigin( m_pos );
box.SetEnd( m_End() );
box.Normalize();
box.Inflate( GetPenSize() / 2 );
return box;
}
int SCH_BUS_WIRE_ENTRY::GetPenSize() const
{
return GetDefaultWireThickness();
}
int SCH_BUS_BUS_ENTRY::GetPenSize() const
{
return GetDefaultBusThickness();
}
void SCH_BUS_WIRE_ENTRY::GetEndPoints( std::vector< DANGLING_END_ITEM >& aItemList )
{
DANGLING_END_ITEM item( WIRE_ENTRY_END, this, m_pos );
aItemList.push_back( item );
DANGLING_END_ITEM item1( WIRE_ENTRY_END, this, m_End() );
aItemList.push_back( item1 );
}
void SCH_BUS_BUS_ENTRY::GetEndPoints( std::vector< DANGLING_END_ITEM >& aItemList )
{
DANGLING_END_ITEM item( BUS_ENTRY_END, this, m_pos );
aItemList.push_back( item );
DANGLING_END_ITEM item1( BUS_ENTRY_END, this, m_End() );
aItemList.push_back( item1 );
}
void SCH_BUS_ENTRY_BASE::Print( wxDC* aDC, const wxPoint& aOffset )
{
COLOR4D color = GetLayerColor( m_Layer );
GRLine( nullptr, aDC, m_pos.x + aOffset.x, m_pos.y + aOffset.y, m_End().x + aOffset.x,
m_End().y + aOffset.y, GetPenSize(), color );
}
void SCH_BUS_ENTRY_BASE::MirrorX( int aXaxis_position )
{
MIRROR( m_pos.y, aXaxis_position );
m_size.y = -m_size.y;
}
void SCH_BUS_ENTRY_BASE::MirrorY( int aYaxis_position )
{
MIRROR( m_pos.x, aYaxis_position );
m_size.x = -m_size.x;
}
void SCH_BUS_ENTRY_BASE::Rotate( wxPoint aPosition )
{
RotatePoint( &m_pos, aPosition, 900 );
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RotatePoint( &m_size.x, &m_size.y, 900 );
}
bool SCH_BUS_WIRE_ENTRY::UpdateDanglingState( std::vector<DANGLING_END_ITEM>& aItemList )
{
bool previousStateStart = m_isDanglingStart;
bool previousStateEnd = m_isDanglingEnd;
m_isDanglingStart = m_isDanglingEnd = true;
// Wires and buses are stored in the list as a pair, start and end. This
// variable holds the start position from one iteration so it can be used
// when the end position is found.
wxPoint seg_start;
// Store the connection type and state for the start (0) and end (1)
bool has_wire[2] = { false };
bool has_bus[2] = { false };
for( DANGLING_END_ITEM& each_item : aItemList )
{
if( each_item.GetItem() == this )
continue;
switch( each_item.GetType() )
{
case WIRE_START_END:
case BUS_START_END:
seg_start = each_item.GetPosition();
break;
case WIRE_END_END:
if( IsPointOnSegment( seg_start, each_item.GetPosition(), m_pos ) )
has_wire[0] = true;
if( IsPointOnSegment( seg_start, each_item.GetPosition(), m_End() ) )
has_wire[1] = true;
break;
case BUS_END_END:
if( IsPointOnSegment( seg_start, each_item.GetPosition(), m_pos ) )
has_bus[0] = true;
if( IsPointOnSegment( seg_start, each_item.GetPosition(), m_End() ) )
has_bus[1] = true;
break;
default:
break;
}
}
/**
* A bus-wire entry is connected at both ends if it has a bus and a wire on its
* ends. Otherwise, we connect only one end (in the case of a wire-wire or bus-bus)
*/
if( ( has_wire[0] && has_bus[1] ) || ( has_wire[1] && has_bus[0] ) )
m_isDanglingEnd = m_isDanglingStart = false;
else if( has_wire[0] || has_bus[0] )
m_isDanglingStart = false;
else if( has_wire[1] || has_bus[1] )
m_isDanglingEnd = false;
return (previousStateStart != m_isDanglingStart) || (previousStateEnd != m_isDanglingEnd);
}
bool SCH_BUS_BUS_ENTRY::UpdateDanglingState( std::vector<DANGLING_END_ITEM>& aItemList )
{
bool previousStateStart = m_isDanglingStart;
bool previousStateEnd = m_isDanglingEnd;
m_isDanglingStart = m_isDanglingEnd = true;
// Wires and buses are stored in the list as a pair, start and end. This
// variable holds the start position from one iteration so it can be used
// when the end position is found.
wxPoint seg_start;
for( DANGLING_END_ITEM& each_item : aItemList )
{
if( each_item.GetItem() == this )
continue;
switch( each_item.GetType() )
{
case BUS_START_END:
seg_start = each_item.GetPosition();
break;
case BUS_END_END:
if( IsPointOnSegment( seg_start, each_item.GetPosition(), m_pos ) )
m_isDanglingStart = false;
if( IsPointOnSegment( seg_start, each_item.GetPosition(), m_End() ) )
m_isDanglingEnd = false;
break;
default:
break;
}
}
return (previousStateStart != m_isDanglingStart) || (previousStateEnd != m_isDanglingEnd);
}
bool SCH_BUS_ENTRY_BASE::IsDangling() const
{
return m_isDanglingStart || m_isDanglingEnd;
}
void SCH_BUS_ENTRY_BASE::GetConnectionPoints( std::vector< wxPoint >& aPoints ) const
{
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aPoints.push_back( m_pos );
aPoints.push_back( m_End() );
}
wxString SCH_BUS_WIRE_ENTRY::GetSelectMenuText( EDA_UNITS_T aUnits ) const
{
return wxString( _( "Bus to Wire Entry" ) );
}
wxString SCH_BUS_BUS_ENTRY::GetSelectMenuText( EDA_UNITS_T aUnits ) const
{
return wxString( _( "Bus to Bus Entry" ) );
}
BITMAP_DEF SCH_BUS_WIRE_ENTRY::GetMenuImage() const
{
return add_line2bus_xpm;
}
BITMAP_DEF SCH_BUS_BUS_ENTRY::GetMenuImage() const
{
return add_bus2bus_xpm;
}
bool SCH_BUS_ENTRY_BASE::HitTest( const wxPoint& aPosition, int aAccuracy ) const
{
// Insure minimum accuracy
if( aAccuracy == 0 )
aAccuracy = ( GetPenSize() / 2 ) + 4;
return TestSegmentHit( aPosition, m_pos, m_End(), aAccuracy );
}
bool SCH_BUS_ENTRY_BASE::HitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy ) const
{
EDA_RECT rect = aRect;
rect.Inflate( aAccuracy );
if( aContained )
return rect.Contains( GetBoundingBox() );
return rect.Intersects( GetBoundingBox() );
}
void SCH_BUS_ENTRY_BASE::Plot( PLOTTER* aPlotter )
{
aPlotter->SetCurrentLineWidth( GetPenSize() );
aPlotter->SetColor( GetLayerColor( GetLayer() ) );
aPlotter->MoveTo( m_pos );
aPlotter->FinishTo( m_End() );
}
void SCH_BUS_ENTRY_BASE::SetBusEntryShape( char aShape )
{
switch( aShape )
{
case '\\':
if( m_size.y < 0 )
m_size.y = -m_size.y;
break;
case '/':
if( m_size.y > 0 )
m_size.y = -m_size.y;
break;
}
}
char SCH_BUS_ENTRY_BASE::GetBusEntryShape() const
{
if( GetSize().y < 0 )
return '/';
else
return '\\';
}
void SCH_BUS_ENTRY_BASE::GetMsgPanelInfo( EDA_UNITS_T aUnits, MSG_PANEL_ITEMS& aList )
{
wxString msg;
switch( GetLayer() )
{
default:
case LAYER_WIRE: msg = _( "Wire" ); break;
case LAYER_BUS: msg = _( "Bus" ); break;
}
aList.push_back( MSG_PANEL_ITEM( _( "Bus Entry Type" ), msg, DARKCYAN ) );
if( auto conn = Connection( *g_CurrentSheet ) )
{
#if defined(DEBUG)
conn->AppendDebugInfoToMsgPanel( aList );
#else
conn->AppendInfoToMsgPanel( aList );
#endif
}
}
bool SCH_BUS_WIRE_ENTRY::ConnectionPropagatesTo( const EDA_ITEM* aItem ) const
{
// Don't generate connections between bus entries and buses, since there is
// a connectivity change at that point (e.g. A[7..0] to A7)
if( ( aItem->Type() == SCH_LINE_T ) &&
( static_cast<const SCH_LINE*>( aItem )->GetLayer() == LAYER_BUS ) )
{
return false;
}
// Don't generate connections between bus entries and bus labels that happen
// to land at the same point on the bus wire as this bus entry
if( ( aItem->Type() == SCH_LABEL_T ) &&
SCH_CONNECTION::IsBusLabel( static_cast<const SCH_LABEL*>( aItem )->GetText() ) )
{
return false;
}
// Don't generate connections between two bus-wire entries
if( aItem->Type() == SCH_BUS_WIRE_ENTRY_T )
return false;
return true;
}