/* * This program source code file is part of KiCad, a free EDA CAD application. * * Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com * Copyright (C) 2011 Wayne Stambaugh * Copyright (C) 1992-2011 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 editrack.cpp */ #include "fctsys.h" #include "class_drawpanel.h" #include "trigo.h" #include "pcbcommon.h" #include "wxPcbStruct.h" #include "colors_selection.h" #include "pcbnew.h" #include "drc_stuff.h" #include "protos.h" #include "class_board.h" #include "class_track.h" #include "class_zone.h" static void Abort_Create_Track( EDA_DRAW_PANEL* panel, wxDC* DC ); void ShowNewTrackWhenMovingCursor( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition, bool aErase ); static void ComputeBreakPoint( TRACK* track, int n, wxPoint end ); static void DeleteNullTrackSegments( BOARD* pcb, DLIST& aTrackList ); static void EnsureEndTrackOnPad( D_PAD* Pad ); static PICKED_ITEMS_LIST s_ItemsListPicker; /* Function called to abort a track creation */ static void Abort_Create_Track( EDA_DRAW_PANEL* Panel, wxDC* DC ) { PCB_EDIT_FRAME* frame = (PCB_EDIT_FRAME*) Panel->GetParent(); BOARD* pcb = frame->GetBoard(); TRACK* track = (TRACK*) frame->GetCurItem(); if( track && ( track->Type()==PCB_VIA_T || track->Type()==PCB_TRACE_T ) ) { /* Erase the current drawing */ ShowNewTrackWhenMovingCursor( Panel, DC, wxDefaultPosition, false ); if( pcb->IsHighLightNetON() ) frame->HighLight( DC ); pcb->PopHighLight(); if( pcb->IsHighLightNetON() ) pcb->DrawHighLight( Panel, DC, pcb->GetHighLightNetCode() ); frame->ClearMsgPanel(); // Undo pending changes (mainly a lock point creation) and clear the // undo picker list: frame->PutDataInPreviousState( &s_ItemsListPicker, false, false ); s_ItemsListPicker.ClearListAndDeleteItems(); // Delete current (new) track g_CurrentTrackList.DeleteAll(); } frame->SetCurItem( NULL ); } /* * This function starts a new track segment. * If a new track segment is in progress, ends this current new segment, * and created a new one. */ TRACK* PCB_EDIT_FRAME::Begin_Route( TRACK* aTrack, wxDC* aDC ) { TRACK* TrackOnStartPoint = NULL; int layerMask = GetLayerMask( GetScreen()->m_Active_Layer ); BOARD_CONNECTED_ITEM* LockPoint; wxPoint pos = GetScreen()->GetCrossHairPosition(); if( aTrack == NULL ) /* Starting a new track segment */ { m_canvas->SetMouseCapture( ShowNewTrackWhenMovingCursor, Abort_Create_Track ); // Prepare the undo command info s_ItemsListPicker.ClearListAndDeleteItems(); // Should not be necessary, but... GetBoard()->PushHighLight(); // erase old highlight if( GetBoard()->IsHighLightNetON() ) HighLight( aDC ); g_CurrentTrackList.PushBack( new TRACK( GetBoard() ) ); g_CurrentTrackSegment->SetFlags( IS_NEW ); GetBoard()->SetHighLightNet( 0 ); // Search for a starting point of the new track, a track or pad LockPoint = GetBoard()->GetLockPoint( pos, layerMask ); D_PAD* pad = NULL; if( LockPoint ) // An item (pad or track) is found { if( LockPoint->Type() == PCB_PAD_T ) { pad = (D_PAD*) LockPoint; /* A pad is found: put the starting point on pad center */ pos = pad->m_Pos; GetBoard()->SetHighLightNet( pad->GetNet() ); } else /* A track segment is found */ { TrackOnStartPoint = (TRACK*) LockPoint; GetBoard()->SetHighLightNet( TrackOnStartPoint->GetNet() ); GetBoard()->CreateLockPoint( pos, TrackOnStartPoint, &s_ItemsListPicker ); } } else { // Not a starting point, but a filled zone area can exist. This is also a // good starting point. ZONE_CONTAINER* zone; zone = GetBoard()->HitTestForAnyFilledArea( pos, GetScreen()-> m_Active_Layer ); if( zone ) GetBoard()->SetHighLightNet( zone->GetNet() ); } D( g_CurrentTrackList.VerifyListIntegrity(); ); BuildAirWiresTargetsList( LockPoint, wxPoint( 0, 0 ), true ); D( g_CurrentTrackList.VerifyListIntegrity(); ); GetBoard()->HighLightON(); GetBoard()->DrawHighLight( m_canvas, aDC, GetBoard()->GetHighLightNetCode() ); // Display info about track Net class, and init track and vias sizes: g_CurrentTrackSegment->SetNet( GetBoard()->GetHighLightNetCode() ); GetBoard()->SetCurrentNetClass( g_CurrentTrackSegment->GetNetClassName() ); g_CurrentTrackSegment->SetLayer( GetScreen()->m_Active_Layer ); g_CurrentTrackSegment->m_Width = GetBoard()->GetCurrentTrackWidth(); if( GetBoard()->GetDesignSettings().m_UseConnectedTrackWidth ) { if( TrackOnStartPoint && TrackOnStartPoint->Type() == PCB_TRACE_T ) g_CurrentTrackSegment->m_Width = TrackOnStartPoint->m_Width; } g_CurrentTrackSegment->m_Start = pos; g_CurrentTrackSegment->m_End = pos; if( pad ) { g_CurrentTrackSegment->m_PadsConnected.push_back( pad ); // Useful to display track length, if the pad has a die length: g_CurrentTrackSegment->SetState( BEGIN_ONPAD, ON ); g_CurrentTrackSegment->start = pad; } if( g_TwoSegmentTrackBuild ) { // Create 2nd segment g_CurrentTrackList.PushBack( g_CurrentTrackSegment->Copy() ); D( g_CurrentTrackList.VerifyListIntegrity(); ); g_CurrentTrackSegment->start = g_FirstTrackSegment; g_FirstTrackSegment->end = g_CurrentTrackSegment; g_FirstTrackSegment->SetState( BEGIN_ONPAD | END_ONPAD, OFF ); } D( g_CurrentTrackList.VerifyListIntegrity(); ); g_CurrentTrackSegment->DisplayInfoBase( this ); SetCurItem( g_CurrentTrackSegment, false ); m_canvas->CallMouseCapture( aDC, wxDefaultPosition, false ); if( Drc_On ) { if( BAD_DRC == m_drc->Drc( g_CurrentTrackSegment, GetBoard()->m_Track ) ) { return g_CurrentTrackSegment; } } } else // Track in progress : segment coordinates are updated by ShowNewTrackWhenMovingCursor. { /* Test for a D.R.C. error: */ if( Drc_On ) { if( BAD_DRC == m_drc->Drc( g_CurrentTrackSegment, GetBoard()->m_Track ) ) return NULL; // We must handle 2 segments if( g_TwoSegmentTrackBuild && g_CurrentTrackSegment->Back() ) { if( BAD_DRC == m_drc->Drc( g_CurrentTrackSegment->Back(), GetBoard()->m_Track ) ) return NULL; } } /* Current track is Ok: current segment is kept, and a new one is * created unless the current segment is null, or 2 last are null * if this is a 2 segments track build. */ bool CanCreateNewSegment = true; if( !g_TwoSegmentTrackBuild && g_CurrentTrackSegment->IsNull() ) CanCreateNewSegment = false; if( g_TwoSegmentTrackBuild && g_CurrentTrackSegment->IsNull() && g_CurrentTrackSegment->Back() && g_CurrentTrackSegment->Back()->IsNull() ) CanCreateNewSegment = false; if( CanCreateNewSegment ) { /* Erase old track on screen */ D( g_CurrentTrackList.VerifyListIntegrity(); ); ShowNewTrackWhenMovingCursor( m_canvas, aDC, wxDefaultPosition, false ); D( g_CurrentTrackList.VerifyListIntegrity(); ); if( g_Raccord_45_Auto ) Add45DegreeSegment( aDC ); TRACK* previousTrack = g_CurrentTrackSegment; TRACK* newTrack = g_CurrentTrackSegment->Copy(); g_CurrentTrackList.PushBack( newTrack ); newTrack->SetFlags( IS_NEW ); newTrack->SetState( BEGIN_ONPAD | END_ONPAD, OFF ); D_PAD* pad = GetBoard()->GetPad( previousTrack, END ); if( pad ) { newTrack->m_PadsConnected.push_back( pad ); previousTrack->m_PadsConnected.push_back( pad ); } newTrack->start = previousTrack->end; D( g_CurrentTrackList.VerifyListIntegrity(); ); newTrack->m_Start = newTrack->m_End; newTrack->SetLayer( GetScreen()->m_Active_Layer ); if( !GetBoard()->GetDesignSettings().m_UseConnectedTrackWidth ) newTrack->m_Width = GetBoard()->GetCurrentTrackWidth(); D( g_CurrentTrackList.VerifyListIntegrity(); ); /* Show the new position */ ShowNewTrackWhenMovingCursor( m_canvas, aDC, wxDefaultPosition, false ); } } SetCurItem( g_CurrentTrackSegment, false ); return g_CurrentTrackSegment; } bool PCB_EDIT_FRAME::Add45DegreeSegment( wxDC* aDC ) { int dx0, dy0, dx1, dy1; if( g_CurrentTrackList.GetCount() < 2 ) return false; /* There must be 2 segments. */ TRACK* curTrack = g_CurrentTrackSegment; TRACK* prevTrack = curTrack->Back(); // Test if we have 2 consecutive track segments ( not via ) to connect. if( curTrack->Type() != PCB_TRACE_T || prevTrack->Type() != PCB_TRACE_T ) { return false; } int segm_step_45 = wxRound( GetScreen()->GetGridSize().x / 2 ); if( segm_step_45 < ( curTrack->m_Width * 2 ) ) segm_step_45 = curTrack->m_Width * 2; // Test if the segments are horizontal or vertical. dx0 = prevTrack->m_End.x - prevTrack->m_Start.x; dy0 = prevTrack->m_End.y - prevTrack->m_Start.y; dx1 = curTrack->m_End.x - curTrack->m_Start.x; dy1 = curTrack->m_End.y - curTrack->m_Start.y; // Segments should have a min length. if( max( abs( dx0 ), abs( dy0 ) ) < ( segm_step_45 * 2 ) ) return false; if( max( abs( dx1 ), abs( dy1 ) ) < ( segm_step_45 * 2 ) ) return false; /* Create a new segment and connect it with the previous 2 segments. */ TRACK* newTrack = curTrack->Copy(); newTrack->m_Start = prevTrack->m_End; newTrack->m_End = curTrack->m_Start; if( dx0 == 0 ) // Previous segment is Vertical { if( dy1 != 0 ) // 2 segments are not 90 degrees. { delete newTrack; return false; } /* Calculate coordinates the connection point. * The new segment connects the 1st vertical segment and the 2nd * horizontal segment. */ if( dy0 > 0 ) newTrack->m_Start.y -= segm_step_45; else newTrack->m_Start.y += segm_step_45; if( dx1 > 0 ) newTrack->m_End.x += segm_step_45; else newTrack->m_End.x -= segm_step_45; if( Drc_On && BAD_DRC == m_drc->Drc( curTrack, GetBoard()->m_Track ) ) { delete newTrack; return false; } prevTrack->m_End = newTrack->m_Start; curTrack->m_Start = newTrack->m_End; g_CurrentTrackList.Insert( newTrack, curTrack ); return true; } if( dy0 == 0 ) // Previous segment is horizontal { if( dx1 != 0 ) // 2 segments are not 90 degrees { delete newTrack; return false; } /* Calculate the coordinates of the point of connection: * A new segment has been created, connecting segment 1 * (horizontal) and segment 2 (vertical) */ if( dx0 > 0 ) newTrack->m_Start.x -= segm_step_45; else newTrack->m_Start.x += segm_step_45; if( dy1 > 0 ) newTrack->m_End.y += segm_step_45; else newTrack->m_End.y -= segm_step_45; if( Drc_On && BAD_DRC==m_drc->Drc( newTrack, GetBoard()->m_Track ) ) { delete newTrack; return false; } prevTrack->m_End = newTrack->m_Start; curTrack->m_Start = newTrack->m_End; g_CurrentTrackList.Insert( newTrack, curTrack ); return true; } return false; } bool PCB_EDIT_FRAME::End_Route( TRACK* aTrack, wxDC* aDC ) { int layerMask = GetLayerMask( GetScreen()->m_Active_Layer ); if( aTrack == NULL ) return false; if( Drc_On && BAD_DRC == m_drc->Drc( g_CurrentTrackSegment, GetBoard()->m_Track ) ) return false; /* Saving the coordinate of end point of the trace */ wxPoint pos = g_CurrentTrackSegment->m_End; D( g_CurrentTrackList.VerifyListIntegrity(); ); if( Begin_Route( aTrack, aDC ) == NULL ) return false; ShowNewTrackWhenMovingCursor( m_canvas, aDC, wxDefaultPosition, true ); ShowNewTrackWhenMovingCursor( m_canvas, aDC, wxDefaultPosition, false ); TraceAirWiresToTargets( aDC ); /* cleanup * if( g_CurrentTrackSegment->Next() != NULL ) * { * delete g_CurrentTrackSegment->Next(); * g_CurrentTrackSegment->SetNext( NULL ); * } */ D( g_CurrentTrackList.VerifyListIntegrity(); ); /* The track here is now chained to the list of track segments. * It must be seen in the area of net * As close as possible to the segment base (or end), because * This helps to reduce the computing time */ // Attaching the end point of the new track to a pad or a track BOARD_CONNECTED_ITEM* LockPoint = GetBoard()->GetLockPoint( pos, layerMask ); if( LockPoint ) { if( LockPoint->Type() == PCB_PAD_T ) // End of track is on a pad. { EnsureEndTrackOnPad( (D_PAD*) LockPoint ); } else // If end point of is on a different track, // creates a lock point if not exists { TRACK* adr_buf = (TRACK*) LockPoint; GetBoard()->SetHighLightNet( adr_buf->GetNet() ); // Creates a lock point (if not already exists): LockPoint = GetBoard()->CreateLockPoint( g_CurrentTrackSegment->m_End, adr_buf, &s_ItemsListPicker ); } } // Delete null length segments: DeleteNullTrackSegments( GetBoard(), g_CurrentTrackList ); // Insert new segments if they exist. // g_FirstTrackSegment can be NULL on a double click on the starting point if( g_FirstTrackSegment != NULL ) { int netcode = g_FirstTrackSegment->GetNet(); TRACK* firstTrack = g_FirstTrackSegment; int newCount = g_CurrentTrackList.GetCount(); // Put entire new current segment list in BOARD, and prepare undo command TRACK* track; TRACK* insertBeforeMe = g_CurrentTrackSegment->GetBestInsertPoint( GetBoard() ); while( ( track = g_CurrentTrackList.PopFront() ) != NULL ) { ITEM_PICKER picker( track, UR_NEW ); s_ItemsListPicker.PushItem( picker ); GetBoard()->m_Track.Insert( track, insertBeforeMe ); } TraceAirWiresToTargets( aDC ); int i = 0; for( track = firstTrack; track && i < newCount; ++i, track = track->Next() ) { track->ClearFlags(); track->SetState( BUSY, OFF ); } // delete the old track, if it exists and is redundant if( g_AutoDeleteOldTrack ) { EraseRedundantTrack( aDC, firstTrack, newCount, &s_ItemsListPicker ); } SaveCopyInUndoList( s_ItemsListPicker, UR_UNSPECIFIED ); s_ItemsListPicker.ClearItemsList(); // s_ItemsListPicker is no more owner of picked items // compute the new ratsnest TestNetConnection( aDC, netcode ); OnModify(); GetBoard()->DisplayInfo( this ); // Redraw the entire new track. DrawTraces( m_canvas, aDC, firstTrack, newCount, GR_OR ); } wxASSERT( g_FirstTrackSegment == NULL ); wxASSERT( g_CurrentTrackSegment == NULL ); wxASSERT( g_CurrentTrackList.GetCount() == 0 ); if( GetBoard()->IsHighLightNetON() ) HighLight( aDC ); GetBoard()->PopHighLight(); if( GetBoard()->IsHighLightNetON() ) GetBoard()->DrawHighLight( m_canvas, aDC, GetBoard()->GetHighLightNetCode() ); m_canvas->SetMouseCapture( NULL, NULL ); SetCurItem( NULL ); return true; } TRACK* LocateIntrusion( TRACK* listStart, TRACK* aTrack, int aLayer, const wxPoint& aRef ) { int net = aTrack->GetNet(); int width = aTrack->m_Width; TRACK* found = NULL; for( TRACK* track = listStart; track; track = track->Next() ) { if( track->Type() == PCB_TRACE_T ) // skip vias { if( track->GetState( BUSY | IS_DELETED ) ) continue; if( aLayer != track->GetLayer() ) continue; if( track->GetNet() == net ) continue; /* TRACK::HitTest */ int dist = (width + track->m_Width) / 2 + aTrack->GetClearance( track ); wxPoint pos = aRef - track->m_Start; wxPoint vec = track->m_End - track->m_Start; if( !DistanceTest( dist, vec.x, vec.y, pos.x, pos.y ) ) continue; found = track; /* prefer intrusions from the side, not the end */ double tmp = (double) pos.x * vec.x + (double) pos.y * vec.y; if( tmp >= 0 && tmp <= (double) vec.x * vec.x + (double) vec.y * vec.y ) break; } } return found; } /** * Function PushTrack * detects if the mouse is pointing into a conflicting track. * In this case, it tries to push the new track out of the conflicting track's * clearance zone. This gives us a cheap mechanism for drawing tracks that * tightly follow others, independent of grid settings. * * KNOWN BUGS: * - we do the same sort of search and calculation up to three times: * 1) we search for magnetic hits (in controle.cpp) * 2) we check if there's a DRC violation in the making (also controle.cpp) * 3) we try to fix the DRC violation (here) * - if we have a magnetic hit and a DRC violation at the same time, we choose * the magnetic hit instead of solving the violation * - should locate conflicting tracks also when we're crossing over them */ static void PushTrack( EDA_DRAW_PANEL* panel ) { PCB_SCREEN* screen = ( (PCB_BASE_FRAME*) (panel->GetParent()) )->GetScreen(); BOARD* pcb = ( (PCB_BASE_FRAME*) (panel->GetParent()) )->GetBoard(); wxPoint cursor = screen->GetCrossHairPosition(); wxPoint cv, vec, n; TRACK* track = g_CurrentTrackSegment; TRACK* other; double det; int dist; double f; other = LocateIntrusion( pcb->m_Track, track, screen->m_Active_Layer, screen->RefPos( true ) ); /* are we currently pointing into a conflicting trace ? */ if( !other ) return; if( other->GetNet() == track->GetNet() ) return; cv = cursor - other->m_Start; vec = other->m_End - other->m_Start; det = (double) cv.x * vec.y - (double) cv.y * vec.x; /* cursor is right at the center of the old track */ if( !det ) return; dist = (track->m_Width + 1) / 2 + (other->m_Width + 1) / 2 + track->GetClearance( other ) + 2; /* * DRC wants >, so +1. * We may have a quantization error of 1/sqrt(2), so +1 again. */ /* Vector "n" is perpendicular to "other", pointing towards the cursor. */ if( det > 0 ) { n.x = vec.y; n.y = -vec.x; } else { n.x = -vec.y; n.y = vec.x; } f = dist / hypot( double(n.x), double(n.y) ); n.x = wxRound( f * n.x ); n.y = wxRound( f * n.y ); Project( &track->m_End, cursor, other ); track->m_End += n; } /* Redraw the current track being created when the mouse cursor is moved */ void ShowNewTrackWhenMovingCursor( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition, bool aErase ) { D( g_CurrentTrackList.VerifyListIntegrity(); ); PCB_SCREEN* screen = (PCB_SCREEN*) aPanel->GetScreen(); PCB_BASE_FRAME* frame = (PCB_BASE_FRAME*) aPanel->GetParent(); bool Track_fill_copy = DisplayOpt.DisplayPcbTrackFill; DisplayOpt.DisplayPcbTrackFill = true; TRACE_CLEARANCE_DISPLAY_MODE_T showTrackClearanceMode = DisplayOpt.ShowTrackClearanceMode; if ( g_FirstTrackSegment == NULL ) return; NETCLASS* netclass = g_FirstTrackSegment->GetNetClass(); if( showTrackClearanceMode != DO_NOT_SHOW_CLEARANCE ) DisplayOpt.ShowTrackClearanceMode = SHOW_CLEARANCE_ALWAYS; #ifndef USE_WX_OVERLAY /* Erase old track */ if( aErase ) { DrawTraces( aPanel, aDC, g_FirstTrackSegment, g_CurrentTrackList.GetCount(), GR_XOR ); frame->TraceAirWiresToTargets( aDC ); if( showTrackClearanceMode >= SHOW_CLEARANCE_NEW_TRACKS_AND_VIA_AREAS ) { int color = g_ColorsSettings.GetLayerColor( g_CurrentTrackSegment->GetLayer() ); GRCircle( aPanel->GetClipBox(), aDC, g_CurrentTrackSegment->m_End.x, g_CurrentTrackSegment->m_End.y, ( netclass->GetViaDiameter() / 2 ) + netclass->GetClearance(), color ); } } #endif // MacOSX seems to need this. if( g_CurrentTrackList.GetCount() == 0 ) return; // Set track parameters, that can be modified while creating the track g_CurrentTrackSegment->SetLayer( screen->m_Active_Layer ); if( !frame->GetBoard()->GetDesignSettings().m_UseConnectedTrackWidth ) g_CurrentTrackSegment->m_Width = frame->GetBoard()->GetCurrentTrackWidth(); if( g_TwoSegmentTrackBuild ) { TRACK* previous_track = g_CurrentTrackSegment->Back(); if( previous_track && previous_track->Type()==PCB_TRACE_T ) { previous_track->SetLayer( screen->m_Active_Layer ); if( !frame->GetBoard()->GetDesignSettings().m_UseConnectedTrackWidth ) previous_track->m_Width = frame->GetBoard()->GetCurrentTrackWidth(); } } if( g_Track_45_Only_Allowed ) { if( g_TwoSegmentTrackBuild ) { g_CurrentTrackSegment->m_End = screen->GetCrossHairPosition(); if( Drc_On ) PushTrack( aPanel ); ComputeBreakPoint( g_CurrentTrackSegment, g_CurrentTrackList.GetCount(), g_CurrentTrackSegment->m_End ); } else { /* Calculate of the end of the path for the permitted directions: * horizontal, vertical or 45 degrees. */ CalculateSegmentEndPoint( screen->GetCrossHairPosition(), g_CurrentTrackSegment->m_Start.x, g_CurrentTrackSegment->m_Start.y, &g_CurrentTrackSegment->m_End.x, &g_CurrentTrackSegment->m_End.y ); } } else /* Here the angle is arbitrary */ { g_CurrentTrackSegment->m_End = screen->GetCrossHairPosition(); } /* Redraw the new track */ D( g_CurrentTrackList.VerifyListIntegrity(); ); DrawTraces( aPanel, aDC, g_FirstTrackSegment, g_CurrentTrackList.GetCount(), GR_XOR ); if( showTrackClearanceMode >= SHOW_CLEARANCE_NEW_TRACKS_AND_VIA_AREAS ) { int color = g_ColorsSettings.GetLayerColor(g_CurrentTrackSegment->GetLayer()); GRCircle( aPanel->GetClipBox(), aDC, g_CurrentTrackSegment->m_End.x, g_CurrentTrackSegment->m_End.y, ( netclass->GetViaDiameter() / 2 ) + netclass->GetClearance(), color ); } /* Display info about current segment and the full new track: * Choose the interesting segment: because we are using a 2 segments step, * the last segment can be null, and the previous segment can be the * interesting segment. */ TRACK* isegm = g_CurrentTrackSegment; if( isegm->GetLength() == 0 && g_CurrentTrackSegment->Back() ) isegm = g_CurrentTrackSegment->Back(); // display interesting segment info only: isegm->DisplayInfoBase( frame ); // Display current track length (on board) and the the actual track len // if there is an extra len due to the len die on the starting pad (if any) double trackLen = 0.0; double lenDie = 0.0; wxString msg; // If the starting point is on a pad, add current track length+ length die if( g_FirstTrackSegment->GetState( BEGIN_ONPAD ) ) { D_PAD * pad = (D_PAD *) g_FirstTrackSegment->start; lenDie = (double) pad->m_LengthDie; } // calculate track len on board: for( TRACK* track = g_FirstTrackSegment; track; track = track->Next() ) trackLen += track->GetLength(); valeur_param( wxRound( trackLen ), msg ); frame->AppendMsgPanel( _( "Track Len" ), msg, DARKCYAN ); if( lenDie != 0 ) // display the track len on board and the actual track len { frame->AppendMsgPanel( _( "Full Len" ), msg, DARKCYAN ); valeur_param( wxRound( trackLen+lenDie ), msg ); frame->AppendMsgPanel( _( "On Die" ), msg, DARKCYAN ); } // Add current segments count (number of segments in this new track): msg.Printf( wxT( "%d" ), g_CurrentTrackList.GetCount() ); frame->AppendMsgPanel( _( "Segs Count" ), msg, DARKCYAN ); DisplayOpt.ShowTrackClearanceMode = showTrackClearanceMode; DisplayOpt.DisplayPcbTrackFill = Track_fill_copy; frame->BuildAirWiresTargetsList( NULL, g_CurrentTrackSegment->m_End, false ); frame->TraceAirWiresToTargets( aDC ); } /* Determine the coordinate to advanced the the current segment * in 0, 90, or 45 degrees, depending on position of origin and \a aPosition. */ void CalculateSegmentEndPoint( const wxPoint& aPosition, int ox, int oy, int* fx, int* fy ) { int deltax, deltay, angle; deltax = aPosition.x - ox; deltay = aPosition.y - oy; deltax = abs( deltax ); deltay = abs( deltay ); angle = 45; if( deltax >= deltay ) { if( deltax == 0 ) angle = 0; else if( ( (deltay << 6 ) / deltax ) < 26 ) angle = 0; } else { angle = 45; if( deltay == 0 ) angle = 90; else if( ( (deltax << 6 ) / deltay ) < 26 ) angle = 90; } switch( angle ) { case 0: *fx = aPosition.x; *fy = oy; break; case 45: deltax = min( deltax, deltay ); deltay = deltax; /* Recalculate the signs for deltax and deltaY. */ if( ( aPosition.x - ox ) < 0 ) deltax = -deltax; if( ( aPosition.y - oy ) < 0 ) deltay = -deltay; *fx = ox + deltax; *fy = oy + deltay; break; case 90: *fx = ox; *fy = aPosition.y; break; } } /** * Compute new track angle based on previous track. */ void ComputeBreakPoint( TRACK* track, int SegmentCount, wxPoint end ) { int iDx = 0; int iDy = 0; int iAngle = 0; if( SegmentCount <= 0 ) return; if( track == NULL ) return; TRACK* newTrack = track; track = track->Back(); SegmentCount--; if( track ) { iDx = end.x - track->m_Start.x; iDy = end.y - track->m_Start.y; iDx = abs( iDx ); iDy = abs( iDy ); } TRACK* lastTrack = track ? track->Back() : NULL; if( lastTrack ) { if(( (lastTrack->m_End.x == lastTrack->m_Start.x) || (lastTrack->m_End.y == lastTrack->m_Start.y) ) && !g_Alternate_Track_Posture) { iAngle = 45; } } else { if( g_Alternate_Track_Posture ) { iAngle = 45; } } if( iAngle == 0 ) { if( iDx >= iDy ) iAngle = 0; else iAngle = 90; } if( track == NULL ) iAngle = -1; switch( iAngle ) { case -1: break; case 0: if( ( end.x - track->m_Start.x ) < 0 ) track->m_End.x = end.x + iDy; else track->m_End.x = end.x - iDy; track->m_End.y = track->m_Start.y; break; case 45: iDx = min( iDx, iDy ); iDy = iDx; /* Recalculate the signs for deltax and deltaY. */ if( ( end.x - track->m_Start.x ) < 0 ) iDx = -iDx; if( ( end.y - track->m_Start.y ) < 0 ) iDy = -iDy; track->m_End.x = track->m_Start.x + iDx; track->m_End.y = track->m_Start.y + iDy; break; case 90: if( ( end.y - track->m_Start.y ) < 0 ) track->m_End.y = end.y + iDx; else track->m_End.y = end.y - iDx; track->m_End.x = track->m_Start.x; break; } if( track ) { if( track->IsNull() ) track->m_End = end; newTrack->m_Start = track->m_End; } newTrack->m_End = end; } /* Delete track segments which have len = 0 after creating a new track * return a pointer on the first segment (start of track list) */ void DeleteNullTrackSegments( BOARD* pcb, DLIST& aTrackList ) { if( aTrackList.GetCount() == 0 ) return; TRACK* track = aTrackList.GetFirst(); TRACK* firsttrack = track; TRACK* oldtrack; BOARD_CONNECTED_ITEM* LockPoint = track->start; while( track != NULL ) { oldtrack = track; track = track->Next(); if( !oldtrack->IsNull() ) { continue; } // NULL segment, delete it if( firsttrack == oldtrack ) firsttrack = track; delete aTrackList.Remove( oldtrack ); } if( aTrackList.GetCount() == 0 ) return; // all the new track segments have been deleted // we must set the pointers on connected items and the connection status oldtrack = track = firsttrack; firsttrack->start = NULL; while( track != NULL ) { oldtrack = track; track = track->Next(); oldtrack->end = track; if( track ) track->start = oldtrack; oldtrack->SetStatus( 0 ); } firsttrack->start = LockPoint; if( LockPoint && LockPoint->Type()==PCB_PAD_T ) firsttrack->SetState( BEGIN_ONPAD, ON ); track = firsttrack; while( track != NULL ) { TRACK* next_track = track->Next(); LockPoint = pcb->GetPad( track, END ); if( LockPoint ) { track->end = LockPoint; track->SetState( END_ONPAD, ON ); if( next_track ) { next_track->start = LockPoint; next_track->SetState( BEGIN_ONPAD, ON ); } } track = next_track; } } /* Ensure the end point of g_CurrentTrackSegment is on the pad "Pad" * if no, create a new track segment if necessary * and move current (or new) end segment on pad */ void EnsureEndTrackOnPad( D_PAD* Pad ) { if( g_CurrentTrackSegment->m_End == Pad->m_Pos ) // Ok ! { g_CurrentTrackSegment->end = Pad; g_CurrentTrackSegment->SetState( END_ONPAD, ON ); return; } TRACK* lasttrack = g_CurrentTrackSegment; if( !g_CurrentTrackSegment->IsNull() ) { /* Must create a new segment, from track end to pad center */ g_CurrentTrackList.PushBack( lasttrack->Copy() ); lasttrack->end = g_CurrentTrackSegment; } g_CurrentTrackSegment->m_End = Pad->m_Pos; g_CurrentTrackSegment->SetState( END_ONPAD, OFF ); g_CurrentTrackSegment->end = Pad; g_CurrentTrackSegment->SetState( END_ONPAD, ON ); }