kicad/pcbnew/router/pns_tool_base.cpp

435 lines
12 KiB
C++

/*
* KiRouter - a push-and-(sometimes-)shove PCB router
*
* Copyright (C) 2013 CERN
* Copyright (C) 2016-2021 KiCad Developers, see AUTHORS.txt for contributors.
* Author: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <functional>
using namespace std::placeholders;
#include <pcb_painter.h>
#include <pcbnew_settings.h>
#include <tools/pcb_grid_helper.h>
#include <wx/log.h>
#include "pns_kicad_iface.h"
#include "pns_tool_base.h"
#include "pns_arc.h"
#include "pns_solid.h"
using namespace KIGFX;
namespace PNS {
TOOL_BASE::TOOL_BASE( const std::string& aToolName ) :
PCB_TOOL_BASE( aToolName )
{
m_gridHelper = nullptr;
m_iface = nullptr;
m_router = nullptr;
m_cancelled = false;
m_startItem = nullptr;
m_startHighlight = false;
m_endItem = nullptr;
m_gridHelper = nullptr;
m_cancelled = false;
}
TOOL_BASE::~TOOL_BASE()
{
delete m_gridHelper;
delete m_iface;
delete m_router;
}
void TOOL_BASE::Reset( RESET_REASON aReason )
{
delete m_gridHelper;
delete m_iface;
delete m_router;
m_iface = new PNS_KICAD_IFACE;
m_iface->SetBoard( board() );
m_iface->SetView( getView() );
m_iface->SetHostTool( this );
m_router = new ROUTER;
m_router->SetInterface( m_iface );
m_router->ClearWorld();
m_router->SyncWorld();
m_router->UpdateSizes( m_savedSizes );
PCBNEW_SETTINGS* settings = frame()->GetPcbNewSettings();
if( !settings->m_PnsSettings )
settings->m_PnsSettings = std::make_unique<ROUTING_SETTINGS>( settings, "tools.pns" );
m_router->LoadSettings( settings->m_PnsSettings.get() );
m_gridHelper = new PCB_GRID_HELPER( m_toolMgr, frame()->GetMagneticItemsSettings() );
}
ITEM* TOOL_BASE::pickSingleItem( const VECTOR2I& aWhere, int aNet, int aLayer, bool aIgnorePads,
const std::vector<ITEM*> aAvoidItems )
{
int tl = aLayer > 0 ? aLayer : getView()->GetTopLayer();
static const int candidateCount = 5;
ITEM* prioritized[candidateCount];
SEG::ecoord dist[candidateCount];
for( int i = 0; i < candidateCount; i++ )
{
prioritized[i] = nullptr;
dist[i] = VECTOR2I::ECOORD_MAX;
}
ITEM_SET candidates = m_router->QueryHoverItems( aWhere );
if( candidates.Empty() )
candidates = m_router->QueryHoverItems( aWhere, true );
for( ITEM* item : candidates.Items() )
{
if( !item->IsRoutable() )
continue;
if( !IsCopperLayer( item->Layers().Start() ) )
continue;
if( !m_iface->IsAnyLayerVisible( item->Layers() ) )
continue;
if( alg::contains( aAvoidItems, item ) )
continue;
// fixme: this causes flicker with live loop removal...
//if( item->Parent() && !item->Parent()->ViewIsVisible() )
// continue;
if( item->OfKind( ITEM::SOLID_T ) && aIgnorePads )
{
continue;
}
else if( aNet <= 0 || item->Net() == aNet )
{
if( item->OfKind( ITEM::VIA_T | ITEM::SOLID_T ) )
{
SEG::ecoord d = ( item->Shape()->Centre() - aWhere ).SquaredEuclideanNorm();
if( d < dist[2] )
{
prioritized[2] = item;
dist[2] = d;
}
if( item->Layers().Overlaps( tl ) && d < dist[0] )
{
prioritized[0] = item;
dist[0] = d;
}
}
else // ITEM::SEGMENT_T | ITEM::ARC_T
{
LINKED_ITEM* li = static_cast<LINKED_ITEM*>( item );
SEG::ecoord d = std::min( ( li->Anchor( 0 ) - aWhere ).SquaredEuclideanNorm(),
( li->Anchor( 1 ) - aWhere ).SquaredEuclideanNorm() );
if( d < dist[3] )
{
prioritized[3] = item;
dist[3] = d;
}
if( item->Layers().Overlaps( tl ) && d < dist[1] )
{
prioritized[1] = item;
dist[1] = d;
}
}
}
else if( item->OfKind( ITEM::SOLID_T ) && item->IsFreePad() )
{
// Allow free pads only when already inside pad
if( item->Shape()->Collide( aWhere ) )
{
prioritized[0] = item;
dist[0] = 0;
}
}
else if ( item->Net() == 0 && m_router->Settings().Mode() == RM_MarkObstacles )
{
// Allow unconnected items as last resort in RM_MarkObstacles mode
if( item->Layers().Overlaps( tl ) )
prioritized[4] = item;
}
}
ITEM* rv = nullptr;
bool highContrast = ( frame()->GetDisplayOptions().m_ContrastModeDisplay != HIGH_CONTRAST_MODE::NORMAL );
for( int i = 0; i < candidateCount; i++ )
{
ITEM* item = prioritized[i];
if( highContrast && item && !item->Layers().Overlaps( tl ) )
item = nullptr;
if( item && ( aLayer < 0 || item->Layers().Overlaps( aLayer ) ) )
{
rv = item;
break;
}
}
if( rv )
{
wxLogTrace( wxT( "PNS" ), wxT( "%s, layer : %d, tl: %d" ),
rv->KindStr().c_str(),
rv->Layers().Start(),
tl );
}
return rv;
}
void TOOL_BASE::highlightNet( bool aEnabled, int aNetcode )
{
RENDER_SETTINGS* rs = getView()->GetPainter()->GetSettings();
if( aNetcode >= 0 && aEnabled )
{
// If the user has previously set the current net to be highlighted,
// we assume they want to keep it highlighted after routing
m_startHighlight = ( rs->IsHighlightEnabled()
&& rs->GetHighlightNetCodes().count( aNetcode ) );
rs->SetHighlight( true, aNetcode );
}
else
{
if( !m_startHighlight )
rs->SetHighlight( false );
m_startHighlight = false;
}
// Do not remove this call. This is required to update the layers when we highlight a net.
// In this case, highlighting a net dims all other elements, so the colors need to update
getView()->UpdateAllLayersColor();
}
bool TOOL_BASE::checkSnap( ITEM *aItem )
{
// Sync PNS engine settings with the general PCB editor options.
auto& pnss = m_router->Settings();
// If we're dragging a track segment, don't try to snap to items on the same copper layer.
// This way we avoid 'flickery' behaviour for short segments when the snap algo is trying to
// snap to the corners of the segments next to the one being dragged.
if( m_startItem && aItem && m_router->GetState() == ROUTER::DRAG_SEGMENT
&& aItem->Layer() == m_startItem->Layer() && aItem->OfKind( ITEM::SEGMENT_T )
&& m_startItem->OfKind( ITEM::SEGMENT_T ) )
return false;
pnss.SetSnapToPads(
frame()->GetMagneticItemsSettings()->pads == MAGNETIC_OPTIONS::CAPTURE_CURSOR_IN_TRACK_TOOL ||
frame()->GetMagneticItemsSettings()->pads == MAGNETIC_OPTIONS::CAPTURE_ALWAYS );
pnss.SetSnapToTracks(
frame()->GetMagneticItemsSettings()->tracks == MAGNETIC_OPTIONS::CAPTURE_CURSOR_IN_TRACK_TOOL
|| frame()->GetMagneticItemsSettings()->tracks == MAGNETIC_OPTIONS::CAPTURE_ALWAYS );
if( aItem )
{
if( aItem->OfKind( ITEM::VIA_T | ITEM::SEGMENT_T | ITEM::ARC_T ) )
return pnss.GetSnapToTracks();
else if( aItem->OfKind( ITEM::SOLID_T ) )
return pnss.GetSnapToPads();
}
return false;
}
void TOOL_BASE::updateStartItem( const TOOL_EVENT& aEvent, bool aIgnorePads )
{
int tl = getView()->GetTopLayer();
VECTOR2I cp = aEvent.IsPrime() ? aEvent.Position()
: controls()->GetCursorPosition( !aEvent.Modifier( MD_SHIFT ) );
VECTOR2I p;
GAL* gal = m_toolMgr->GetView()->GetGAL();
controls()->ForceCursorPosition( false );
m_gridHelper->SetUseGrid( gal->GetGridSnapping() && !aEvent.DisableGridSnapping() );
m_gridHelper->SetSnap( !aEvent.Modifier( MD_SHIFT ) );
if( aEvent.IsMotion() || aEvent.IsClick() )
p = aEvent.Position();
else
p = cp;
m_startItem = pickSingleItem( aEvent.IsClick() ? cp : p, -1, -1, aIgnorePads );
if( !m_gridHelper->GetUseGrid() && m_startItem && !m_startItem->Layers().Overlaps( tl ) )
m_startItem = nullptr;
m_startSnapPoint = snapToItem( m_startItem, p );
controls()->ForceCursorPosition( true, m_startSnapPoint );
}
void TOOL_BASE::updateEndItem( const TOOL_EVENT& aEvent )
{
int layer;
GAL* gal = m_toolMgr->GetView()->GetGAL();
m_gridHelper->SetUseGrid( gal->GetGridSnapping() && !aEvent.DisableGridSnapping() );
m_gridHelper->SetSnap( !aEvent.Modifier( MD_SHIFT ) );
controls()->ForceCursorPosition( false );
VECTOR2I mousePos;
if( ! aEvent.IsDrag() )
mousePos = controls()->GetMousePosition();
else
mousePos = aEvent.DragOrigin();
if( m_router->Settings().Mode() != RM_MarkObstacles &&
( m_router->GetCurrentNets().empty() || m_router->GetCurrentNets().front() < 0 ) )
{
m_endSnapPoint = snapToItem( nullptr, mousePos );
controls()->ForceCursorPosition( true, m_endSnapPoint );
m_endItem = nullptr;
return;
}
if( m_router->IsPlacingVia() )
layer = -1;
else
layer = m_router->GetCurrentLayer();
ITEM* endItem = nullptr;
std::vector<int> nets = m_router->GetCurrentNets();
for( int net : nets )
{
endItem = pickSingleItem( mousePos, net, layer, false, { m_startItem } );
if( endItem )
break;
}
if( m_gridHelper->GetSnap() && checkSnap( endItem ) )
{
m_endItem = endItem;
m_endSnapPoint = snapToItem( endItem, mousePos );
}
else
{
m_endItem = nullptr;
m_endSnapPoint = m_gridHelper->Align( mousePos );
}
controls()->ForceCursorPosition( true, m_endSnapPoint );
if( m_endItem )
{
wxLogTrace( wxT( "PNS" ), wxT( "%s, layer : %d" ),
m_endItem->KindStr().c_str(),
m_endItem->Layers().Start() );
}
}
ROUTER *TOOL_BASE::Router() const
{
return m_router;
}
const VECTOR2I TOOL_BASE::snapToItem( ITEM* aItem, const VECTOR2I& aP )
{
if( !aItem || !m_iface->IsItemVisible( aItem ) )
{
return m_gridHelper->Align( aP );
}
switch( aItem->Kind() )
{
case ITEM::SOLID_T:
return static_cast<SOLID*>( aItem )->Pos();
case ITEM::VIA_T:
return static_cast<VIA*>( aItem )->Pos();
case ITEM::SEGMENT_T:
case ITEM::ARC_T:
{
LINKED_ITEM* li = static_cast<LINKED_ITEM*>( aItem );
VECTOR2I A = li->Anchor( 0 );
VECTOR2I B = li->Anchor( 1 );
SEG::ecoord w_sq = SEG::Square( li->Width() / 2 );
SEG::ecoord distA_sq = ( aP - A ).SquaredEuclideanNorm();
SEG::ecoord distB_sq = ( aP - B ).SquaredEuclideanNorm();
if( distA_sq < w_sq || distB_sq < w_sq )
{
return ( distA_sq < distB_sq ) ? A : B;
}
else if( aItem->Kind() == ITEM::SEGMENT_T )
{
// TODO(snh): Clean this up
SEGMENT* seg = static_cast<SEGMENT*>( li );
return m_gridHelper->AlignToSegment( aP, seg->Seg() );
}
else if( aItem->Kind() == ITEM::ARC_T )
{
ARC* arc = static_cast<ARC*>( li );
return m_gridHelper->AlignToArc( aP, *static_cast<const SHAPE_ARC*>( arc->Shape() ) );
}
break;
}
default:
break;
}
return m_gridHelper->Align( aP );
}
}