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kicad/pcbnew/router/router_tool.cpp

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/*
* KiRouter - a push-and-(sometimes-)shove PCB router
*
* Copyright (C) 2013 CERN
* 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 <wx/numdlg.h>
#include <boost/foreach.hpp>
#include <boost/optional.hpp>
#include <boost/bind.hpp>
#include "class_draw_panel_gal.h"
#include "class_board.h"
#include <wxPcbStruct.h>
#include <id.h>
#include <macros.h>
#include <pcbnew_id.h>
#include <view/view_controls.h>
#include <pcbcommon.h>
#include <pcb_painter.h>
#include <dialogs/dialog_pns_settings.h>
#include <dialogs/dialog_track_via_size.h>
#include <base_units.h>
#include <tool/context_menu.h>
#include <tools/common_actions.h>
#include <ratsnest_data.h>
#include "router_tool.h"
#include "pns_segment.h"
#include "pns_router.h"
#include "trace.h"
using namespace KIGFX;
using boost::optional;
static TOOL_ACTION ACT_NewTrack( "pcbnew.InteractiveRouter.NewTrack",
AS_CONTEXT, 'X',
"New Track", "Starts laying a new track.");
static TOOL_ACTION ACT_EndTrack( "pcbnew.InteractiveRouter.EndTrack",
AS_CONTEXT, WXK_END,
"End Track", "Stops laying the current track.");
static TOOL_ACTION ACT_AutoEndRoute( "pcbnew.InteractiveRouter.AutoEndRoute",
AS_CONTEXT, 'F',
"Auto-end Track", "Automagically finishes currently routed track." );
static TOOL_ACTION ACT_Drag( "pcbnew.InteractiveRouter.Drag",
AS_CONTEXT, 'G',
"Drag Track/Via", "Drags a track or a via." );
static TOOL_ACTION ACT_PlaceThroughVia( "pcbnew.InteractiveRouter.PlaceVia",
AS_CONTEXT, 'V',
"Place Through Via", "Adds a through-hole via at the end of currently routed track." );
static TOOL_ACTION ACT_PlaceBlindVia( "pcbnew.InteractiveRouter.PlaceBlindVia",
AS_CONTEXT, 'Z',
"Place Blind/Buried Via", "Adds a blind or buried via at the end of currently routed track." );
static TOOL_ACTION ACT_PlaceMicroVia( "pcbnew.InteractiveRouter.PlaceMicroVia",
AS_CONTEXT, 'Q',
"Place Microvia", "Adds a microvia at the end of currently routed track." );
static TOOL_ACTION ACT_CustomTrackWidth( "pcbnew.InteractiveRouter.CustomTrackWidth",
AS_CONTEXT, 'W',
"Custom Track Width", "Shows a dialog for changing the track width and via size.");
static TOOL_ACTION ACT_RouterOptions( "pcbnew.InteractiveRouter.RouterOptions",
AS_CONTEXT, 'E',
"Routing Options...", "Shows a dialog containing router options.");
static TOOL_ACTION ACT_SwitchPosture( "pcbnew.InteractiveRouter.SwitchPosture",
AS_CONTEXT, '/',
"Switch Track Posture", "Switches posture of the currenly routed track.");
ROUTER_TOOL::ROUTER_TOOL() :
TOOL_INTERACTIVE( "pcbnew.InteractiveRouter" )
{
m_router = NULL;
}
class CONTEXT_TRACK_WIDTH_MENU: public CONTEXT_MENU
{
public:
CONTEXT_TRACK_WIDTH_MENU()
{
setCustomEventHandler( boost::bind( &CONTEXT_TRACK_WIDTH_MENU::handleCustomEvent,
this, _1 ) );
}
void SetBoard( BOARD* aBoard )
{
BOARD_DESIGN_SETTINGS& bds = aBoard->GetDesignSettings();
wxString msg;
m_board = aBoard;
Append( ID_POPUP_PCB_SELECT_CUSTOM_WIDTH, _( "Custom size" ),
wxEmptyString, wxITEM_CHECK );
Append( ID_POPUP_PCB_SELECT_AUTO_WIDTH, _( "Use the starting track width" ),
_( "Route using the width of the starting track." ), wxITEM_CHECK );
Append( ID_POPUP_PCB_SELECT_USE_NETCLASS_VALUES, _( "Use netclass values" ),
_( "Use track and via sizes from the net class" ), wxITEM_CHECK );
for( unsigned i = 0; i < bds.m_TrackWidthList.size(); i++ )
{
msg = _( "Track ");
msg << StringFromValue( g_UserUnit, bds.m_TrackWidthList[i], true );
if( i == 0 )
msg << _( " (from netclass)" );
Append( ID_POPUP_PCB_SELECT_WIDTH1 + i, msg, wxEmptyString, wxITEM_CHECK );
}
AppendSeparator();
for( unsigned i = 0; i < bds.m_ViasDimensionsList.size(); i++ )
{
msg = _("Via ");
msg << StringFromValue( g_UserUnit, bds.m_ViasDimensionsList[i].m_Diameter, true );
wxString drill = StringFromValue( g_UserUnit,
bds.m_ViasDimensionsList[i].m_Drill,
true );
if( bds.m_ViasDimensionsList[i].m_Drill <= 0 )
{
msg << _ (", drill: default");
}
else
{
msg << _ (", drill: ") << drill;
}
if( i == 0 )
msg << _( " (from netclass)" );
Append( ID_POPUP_PCB_SELECT_VIASIZE1 + i, msg, wxEmptyString, wxITEM_CHECK );
}
}
protected:
OPT_TOOL_EVENT handleCustomEvent( const wxEvent& aEvent )
{
#if ID_POPUP_PCB_SELECT_VIASIZE1 < ID_POPUP_PCB_SELECT_WIDTH1
#error You have changed event ids order, it breaks code. Check the source code for more details.
// Recognising type of event (track width/via size) is based on comparison if the event id is
// within a specific range. If ranges of event ids changes, then the following is not valid anymore.
#endif
BOARD_DESIGN_SETTINGS &bds = m_board->GetDesignSettings();
int id = aEvent.GetId();
// Initial settings, to be modified below
bds.m_UseConnectedTrackWidth = false;
bds.UseCustomTrackViaSize( false );
if( id == ID_POPUP_PCB_SELECT_CUSTOM_WIDTH )
{
bds.UseCustomTrackViaSize( true );
}
else if( id == ID_POPUP_PCB_SELECT_AUTO_WIDTH )
{
bds.m_UseConnectedTrackWidth = true;
}
else if( id == ID_POPUP_PCB_SELECT_USE_NETCLASS_VALUES )
{
bds.SetViaSizeIndex( 0 );
bds.SetTrackWidthIndex( 0 );
}
else if( id > ID_POPUP_PCB_SELECT_VIASIZE1 ) // via size has changed
{
assert( id < ID_POPUP_PCB_SELECT_WIDTH_END_RANGE );
bds.SetViaSizeIndex( id - ID_POPUP_PCB_SELECT_VIASIZE1 );
}
else // track width has changed
{
assert( id >= ID_POPUP_PCB_SELECT_WIDTH1 );
assert( id < ID_POPUP_PCB_SELECT_VIASIZE );
bds.SetTrackWidthIndex( id - ID_POPUP_PCB_SELECT_WIDTH1 );
}
return OPT_TOOL_EVENT( COMMON_ACTIONS::trackViaSizeChanged.MakeEvent() );
}
BOARD* m_board;
};
class ROUTER_TOOL_MENU: public CONTEXT_MENU
{
public:
ROUTER_TOOL_MENU( BOARD* aBoard )
{
SetTitle( wxT( "Interactive Router" ) );
Add( ACT_NewTrack );
Add( ACT_EndTrack );
// Add( ACT_AutoEndRoute ); // fixme: not implemented yet. Sorry.
Add( ACT_Drag );
Add( ACT_PlaceThroughVia );
Add( ACT_PlaceBlindVia );
Add( ACT_PlaceMicroVia );
Add( ACT_SwitchPosture );
AppendSeparator();
CONTEXT_TRACK_WIDTH_MENU* trackMenu = new CONTEXT_TRACK_WIDTH_MENU;
trackMenu->SetBoard( aBoard );
AppendSubMenu( trackMenu, wxT( "Select Track Width" ) );
Add( ACT_CustomTrackWidth );
AppendSeparator();
Add( ACT_RouterOptions );
}
};
ROUTER_TOOL::~ROUTER_TOOL()
{
delete m_router;
}
void ROUTER_TOOL::Reset( RESET_REASON aReason )
{
if( m_router )
delete m_router;
m_router = new PNS_ROUTER;
TRACEn( 0, "Reset" );
m_router->ClearWorld();
m_router->SetBoard( getModel<BOARD>() );
m_router->SyncWorld();
m_router->LoadSettings( m_settings );
m_needsSync = false;
if( getView() )
m_router->SetView( getView() );
Go( &ROUTER_TOOL::Main, COMMON_ACTIONS::routerActivate.MakeEvent() );
}
int ROUTER_TOOL::getDefaultWidth( int aNetCode )
{
int w, d1, d2;
getNetclassDimensions( aNetCode, w, d1, d2 );
return w;
}
void ROUTER_TOOL::getNetclassDimensions( int aNetCode, int& aWidth,
int& aViaDiameter, int& aViaDrill )
{
BOARD* board = getModel<BOARD>();
BOARD_DESIGN_SETTINGS &bds = board->GetDesignSettings();
NETCLASSPTR netClass;
NETINFO_ITEM* ni = board->FindNet( aNetCode );
if( ni )
{
wxString netClassName = ni->GetClassName();
netClass = bds.m_NetClasses.Find( netClassName );
}
if( !netClass )
netClass = bds.GetDefault();
aWidth = netClass->GetTrackWidth();
aViaDiameter = netClass->GetViaDiameter();
aViaDrill = netClass->GetViaDrill();
}
PNS_ITEM* ROUTER_TOOL::pickSingleItem( const VECTOR2I& aWhere, int aNet, int aLayer )
{
int tl = getView()->GetTopLayer();
if( aLayer > 0 )
tl = aLayer;
PNS_ITEM* prioritized[4];
for( int i = 0; i < 4; i++ )
prioritized[i] = 0;
PNS_ITEMSET candidates = m_router->QueryHoverItems( aWhere );
BOOST_FOREACH( PNS_ITEM* item, candidates.Items() )
{
if( !IsCopperLayer( item->Layers().Start() ) )
continue;
// fixme: this causes flicker with live loop removal...
//if( item->Parent() && !item->Parent()->ViewIsVisible() )
// continue;
if( aNet < 0 || item->Net() == aNet )
{
if( item->OfKind( PNS_ITEM::VIA | PNS_ITEM::SOLID ) )
{
if( !prioritized[2] )
prioritized[2] = item;
if( item->Layers().Overlaps( tl ) )
prioritized[0] = item;
}
else
{
if( !prioritized[3] )
prioritized[3] = item;
if( item->Layers().Overlaps( tl ) )
prioritized[1] = item;
}
}
}
PNS_ITEM* rv = NULL;
for( int i = 0; i < 4; i++ )
{
PNS_ITEM* item = prioritized[i];
if( DisplayOpt.ContrastModeDisplay )
if( item && !item->Layers().Overlaps( tl ) )
item = NULL;
if( item )
{
rv = item;
break;
}
}
if( rv && aLayer >= 0 && !rv->Layers().Overlaps( aLayer ) )
rv = NULL;
if( rv )
TRACE( 0, "%s, layer : %d, tl: %d", rv->KindStr().c_str() % rv->Layers().Start() % tl );
return rv;
}
void ROUTER_TOOL::highlightNet( bool aEnabled, int aNetcode )
{
RENDER_SETTINGS* rs = getView()->GetPainter()->GetSettings();
if( aNetcode >= 0 && aEnabled )
rs->SetHighlight( true, aNetcode );
else
rs->SetHighlight( false );
getView()->UpdateAllLayersColor();
}
void ROUTER_TOOL::handleCommonEvents( TOOL_EVENT& aEvent )
{
PCB_EDIT_FRAME* frame = getEditFrame<PCB_EDIT_FRAME> ();
BOARD* board = getModel<BOARD> ();
#ifdef DEBUG
if( aEvent.IsKeyPressed() )
{
switch( aEvent.KeyCode() )
{
case 'S':
TRACEn( 2, "saving drag/route log...\n" );
m_router->DumpLog();
break;
}
}
else
#endif
if( aEvent.IsAction( &ACT_RouterOptions ) )
{
DIALOG_PNS_SETTINGS settingsDlg( frame, m_router->Settings() );
if( settingsDlg.ShowModal() )
{
// FIXME: do we need an explicit update?
}
}
else if( aEvent.IsAction( &ACT_CustomTrackWidth ) )
{
BOARD_DESIGN_SETTINGS& bds = board->GetDesignSettings();
DIALOG_TRACK_VIA_SIZE sizeDlg( frame, bds );
if( sizeDlg.ShowModal() )
{
bds.UseCustomTrackViaSize( true );
m_toolMgr->RunAction( COMMON_ACTIONS::trackViaSizeChanged );
}
}
else if( aEvent.IsAction( &COMMON_ACTIONS::trackViaSizeChanged ) )
{
PNS_SIZES_SETTINGS sizes;
sizes.ImportCurrent ( board->GetDesignSettings() );
m_router->UpdateSizes ( sizes );
}
}
void ROUTER_TOOL::updateStartItem( TOOL_EVENT& aEvent )
{
VIEW_CONTROLS* ctls = getViewControls();
int tl = getView()->GetTopLayer();
VECTOR2I cp = ctls->GetCursorPosition();
PNS_ITEM* startItem = NULL;
if( aEvent.IsMotion() || aEvent.IsClick() )
{
VECTOR2I p = aEvent.Position();
startItem = pickSingleItem( p );
bool snapEnabled = !aEvent.Modifier( MD_SHIFT );
m_router->EnableSnapping ( snapEnabled );
if( !snapEnabled && startItem && !startItem->Layers().Overlaps( tl ) )
startItem = NULL;
if( startItem && startItem->Net() >= 0 )
{
bool dummy;
VECTOR2I psnap = m_router->SnapToItem( startItem, p, dummy );
if( snapEnabled )
{
m_startSnapPoint = psnap;
ctls->ForceCursorPosition( true, psnap );
}
else
{
m_startSnapPoint = cp;
ctls->ForceCursorPosition( false );
}
// if( startItem->Layers().IsMultilayer() )
// m_startLayer = tl;
// else
// m_startLayer = startItem->Layers().Start();
m_startItem = startItem;
}
else
{
m_startItem = NULL;
m_startSnapPoint = cp;
ctls->ForceCursorPosition( false );
}
}
}
void ROUTER_TOOL::updateEndItem( TOOL_EVENT& aEvent )
{
VIEW_CONTROLS* ctls = getViewControls();
VECTOR2I p = getView()->ToWorld( ctls->GetMousePosition() );
VECTOR2I cp = ctls->GetCursorPosition();
int layer;
bool snapEnabled = !aEvent.Modifier( MD_SHIFT );
m_router->EnableSnapping( snapEnabled );
if( !snapEnabled || m_router->GetCurrentNet() < 0 || !m_startItem )
{
m_endItem = NULL;
m_endSnapPoint = cp;
return;
}
bool dummy;
if( m_router->IsPlacingVia() )
layer = -1;
else
layer = m_router->GetCurrentLayer();
PNS_ITEM* endItem = pickSingleItem( p, m_startItem->Net(), layer );
if( endItem )
{
VECTOR2I cursorPos = m_router->SnapToItem( endItem, p, dummy );
ctls->ForceCursorPosition( true, cursorPos );
m_endItem = endItem;
m_endSnapPoint = cursorPos;
}
else
{
m_endItem = NULL;
m_endSnapPoint = cp;
ctls->ForceCursorPosition( false );
}
if( m_endItem )
TRACE( 0, "%s, layer : %d", m_endItem->KindStr().c_str() % m_endItem->Layers().Start() );
}
int ROUTER_TOOL::getStartLayer( const PNS_ITEM* aItem )
{
int tl = getView()->GetTopLayer();
if( m_startItem )
{
const PNS_LAYERSET& ls = m_startItem->Layers();
if( ls.Overlaps( tl ) )
return tl;
else
return ls.Start();
}
return tl;
}
void ROUTER_TOOL::switchLayerOnViaPlacement()
{
PCB_EDIT_FRAME* frame = getEditFrame<PCB_EDIT_FRAME>();
int al = frame->GetActiveLayer();
int cl = m_router->GetCurrentLayer();
if( cl != al )
{
m_router->SwitchLayer( al );
}
optional<int> newLayer = m_router->Sizes().PairedLayer( cl );
if( newLayer )
{
m_router->SwitchLayer ( *newLayer );
frame->SetActiveLayer ( ToLAYER_ID( *newLayer ) );
}
}
bool ROUTER_TOOL::onViaCommand( VIATYPE_T aType )
{
BOARD* board = getModel<BOARD> ();
BOARD_DESIGN_SETTINGS& bds = board->GetDesignSettings();
PCB_EDIT_FRAME* frame = getEditFrame<PCB_EDIT_FRAME>();
const int layerCount = bds.GetCopperLayerCount();
int currentLayer = m_router->GetCurrentLayer();
PNS_SIZES_SETTINGS sizes = m_router->Sizes();
sizes.ClearLayerPairs();
sizes.AddLayerPair( frame->GetScreen()->m_Route_Layer_TOP,
frame->GetScreen()->m_Route_Layer_BOTTOM );
if( !m_router->IsPlacingVia() )
{
// Cannot place microvias or blind vias if not allowed (obvious)
if( ( aType == VIA_BLIND_BURIED ) && ( !bds.m_BlindBuriedViaAllowed ) )
return false;
if( ( aType == VIA_MICROVIA ) && ( !bds.m_MicroViasAllowed ) )
return false;
//Can only place through vias on 2-layer boards
if( ( aType != VIA_THROUGH ) && ( layerCount <= 2 ) )
return false;
//Can only place microvias if we're on an outer layer, or directly adjacent to one
if( ( aType == VIA_MICROVIA ) && ( currentLayer > In1_Cu ) && ( currentLayer < layerCount-2 ) )
return false;
//Cannot place blind vias with front/back as the layer pair, this doesn't make sense
if( ( aType == VIA_BLIND_BURIED ) && ( sizes.GetLayerTop() == F_Cu ) && ( sizes.GetLayerBottom() == B_Cu ) )
return false;
}
sizes.SetViaType ( aType );
m_router->ToggleViaPlacement( );
m_router->UpdateSizes( sizes );
m_router->Move( m_endSnapPoint, m_endItem ); // refresh
return false;
}
void ROUTER_TOOL::performRouting()
{
PCB_EDIT_FRAME* frame = getEditFrame<PCB_EDIT_FRAME>();
bool saveUndoBuffer = true;
VIEW_CONTROLS* ctls = getViewControls();
BOARD* board = getModel<BOARD>();
int routingLayer = getStartLayer ( m_startItem );
frame->SetActiveLayer( ToLAYER_ID ( routingLayer ) );
// fixme: switch on invisible layer
if( m_startItem && m_startItem->Net() >= 0 )
{
highlightNet( true, m_startItem->Net() );
// Update track width and via size shown in main toolbar comboboxes
frame->SetCurrentNetClass( m_startItem->Parent()->GetNetClass()->GetName() );
}
else
frame->SetCurrentNetClass( NETCLASS::Default );
ctls->ForceCursorPosition( false );
ctls->SetAutoPan( true );
PNS_SIZES_SETTINGS sizes;
sizes.Init ( board, m_startItem );
sizes.AddLayerPair ( frame->GetScreen()->m_Route_Layer_TOP,
frame->GetScreen()->m_Route_Layer_BOTTOM );
m_router->UpdateSizes( sizes );
m_router->StartRouting( m_startSnapPoint, m_startItem, routingLayer );
m_endItem = NULL;
m_endSnapPoint = m_startSnapPoint;
while( OPT_TOOL_EVENT evt = Wait() )
{
if( evt->IsCancel() || evt->IsActivate() )
break;
else if( evt->Action() == TA_UNDO_REDO )
{
saveUndoBuffer = false;
break;
}
else if( evt->IsMotion() )
{
updateEndItem( *evt );
m_router->Move( m_endSnapPoint, m_endItem );
}
else if( evt->IsClick( BUT_LEFT ) )
{
updateEndItem( *evt );
bool needLayerSwitch = m_router->IsPlacingVia();
if( m_router->FixRoute( m_endSnapPoint, m_endItem ) )
break;
if( needLayerSwitch )
{
switchLayerOnViaPlacement();
}
// Synchronize the indicated layer
frame->SetActiveLayer( ToLAYER_ID( m_router->GetCurrentLayer() ) );
m_router->Move( m_endSnapPoint, m_endItem );
}
else if( evt->IsAction( &ACT_PlaceThroughVia ) )
{
onViaCommand ( VIA_THROUGH );
}
else if( evt->IsAction( &ACT_PlaceBlindVia ) )
{
onViaCommand ( VIA_BLIND_BURIED );
}
else if( evt->IsAction( &ACT_PlaceMicroVia ) )
{
onViaCommand ( VIA_MICROVIA );
}
else if( evt->IsAction( &ACT_SwitchPosture ) )
{
m_router->FlipPosture();
m_router->Move( m_endSnapPoint, m_endItem ); // refresh
}
else if( evt->IsAction( &COMMON_ACTIONS::layerChanged ) )
{
updateEndItem( *evt );
m_router->SwitchLayer( frame->GetActiveLayer() );
m_router->Move( m_endSnapPoint, m_endItem ); // refresh
}
else if( evt->IsAction( &ACT_EndTrack ) )
{
if( m_router->FixRoute( m_endSnapPoint, m_endItem ) )
break;
}
handleCommonEvents( *evt );
}
m_router->StopRouting();
if( saveUndoBuffer )
{
// Save the recent changes in the undo buffer
frame->SaveCopyInUndoList( m_router->GetUndoBuffer(), UR_UNSPECIFIED );
m_router->ClearUndoBuffer();
frame->OnModify();
}
else
{
// It was interrupted by TA_UNDO_REDO event, so we have to sync the world now
m_needsSync = true;
}
ctls->SetAutoPan( false );
ctls->ForceCursorPosition( false );
highlightNet( false );
}
int ROUTER_TOOL::Main( TOOL_EVENT& aEvent )
{
VIEW_CONTROLS* ctls = getViewControls();
PCB_EDIT_FRAME* frame = getEditFrame<PCB_EDIT_FRAME>();
BOARD* board = getModel<BOARD>();
// Deselect all items
m_toolMgr->RunAction( COMMON_ACTIONS::selectionClear, true );
frame->SetToolID( ID_TRACK_BUTT, wxCURSOR_PENCIL, _( "Interactive Router" ) );
ctls->SetSnapping( true );
ctls->ShowCursor( true );
std::auto_ptr<ROUTER_TOOL_MENU> ctxMenu ( new ROUTER_TOOL_MENU( board ) );
SetContextMenu ( ctxMenu.get() );
// Main loop: keep receiving events
while( OPT_TOOL_EVENT evt = Wait() )
{
if( m_needsSync )
{
m_router->SyncWorld();
m_router->SetView( getView() );
m_needsSync = false;
}
if( evt->IsCancel() || evt->IsActivate() )
break; // Finish
else if( evt->Action() == TA_UNDO_REDO )
m_needsSync = true;
else if( evt->IsMotion() )
updateStartItem( *evt );
else if( evt->IsClick( BUT_LEFT ) || evt->IsAction( &ACT_NewTrack ) )
{
updateStartItem( *evt );
if( evt->Modifier( MD_CTRL ) )
performDragging();
else
performRouting();
}
else if( evt->IsAction( &ACT_Drag ) )
performDragging();
handleCommonEvents( *evt );
}
// Restore the default settings
ctls->SetAutoPan( false );
ctls->ShowCursor( false );
frame->SetToolID( ID_NO_TOOL_SELECTED, wxCURSOR_DEFAULT, wxEmptyString );
// Store routing settings till the next invocation
m_settings = m_router->Settings();
return 0;
}
void ROUTER_TOOL::performDragging()
{
PCB_EDIT_FRAME* frame = getEditFrame<PCB_EDIT_FRAME>();
bool saveUndoBuffer = true;
VIEW_CONTROLS* ctls = getViewControls();
bool dragStarted = m_router->StartDragging( m_startSnapPoint, m_startItem );
if( !dragStarted )
return;
if( m_startItem && m_startItem->Net() >= 0 )
highlightNet( true, m_startItem->Net() );
ctls->ForceCursorPosition( false );
ctls->SetAutoPan( true );
while( OPT_TOOL_EVENT evt = Wait() )
{
if( evt->IsCancel() || evt->IsActivate() )
break;
else if( evt->Action() == TA_UNDO_REDO )
{
saveUndoBuffer = false;
break;
}
else if( evt->IsMotion() )
{
updateEndItem( *evt );
m_router->Move( m_endSnapPoint, m_endItem );
}
else if( evt->IsClick( BUT_LEFT ) )
{
if( m_router->FixRoute( m_endSnapPoint, m_endItem ) )
break;
}
handleCommonEvents( *evt );
}
if( m_router->RoutingInProgress() )
m_router->StopRouting();
if( saveUndoBuffer )
{
// Save the recent changes in the undo buffer
frame->SaveCopyInUndoList( m_router->GetUndoBuffer(), UR_UNSPECIFIED );
m_router->ClearUndoBuffer();
frame->OnModify();
}
else
{
// It was interrupted by TA_UNDO_REDO event, so we have to sync the world now
m_needsSync = true;
}
ctls->SetAutoPan( false );
ctls->ForceCursorPosition( false );
highlightNet( false );
}
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