/****************************************************/
/* 				Edition des pistes					*/
/* Routines de duplication et deplacement de pistes */
/****************************************************/

#include "fctsys.h"
#include "gr_basic.h"

#include "common.h"
#include "pcbnew.h"
#include "autorout.h"

#include "drag.h"

#include "protos.h"


/* Routines externes */

static void Show_MoveTrack( WinEDA_DrawPanel* panel, wxDC* DC, bool erase );
static void Exit_MoveTrack( WinEDA_DrawPanel* Panel, wxDC* DC );

#if 0
/* Routines Locales */
static void Duplic_Track( COMMAND* Cmd );
static void Place_Dupl_Route( COMMAND* Cmd );

#endif

/* variables locales */
static wxPoint PosInit, LastPos;
static TRACK*  NewTrack;    /* Nouvelle piste creee ou piste deplacee */
static int     NbPtNewTrack;
static int     Old_HightLigth_NetCode;
static bool    Old_HightLigt_Status;


/**************************************************************/
static void Exit_MoveTrack( WinEDA_DrawPanel* Panel, wxDC* DC )
/***************************************************************/

/* routine d'annulation de la commande drag, copy ou move track  si une piste est en cours
 *  de tracage, ou de sortie de l'application EDITRACK.
 *  Appel par la touche ESC
 */
{
    TRACK* NextS;
    int    ii;


    /* Effacement du trace en cours */
    wxPoint             oldpos = Panel->GetScreen()->m_Curseur;

    Panel->GetScreen()->m_Curseur = PosInit;
    Panel->ManageCurseur( Panel, DC, TRUE );
    Panel->GetScreen()->m_Curseur = oldpos;
    g_HightLigt_Status = FALSE;
    ( (WinEDA_PcbFrame*) Panel->m_Parent )->DrawHightLight( DC, g_HightLigth_NetCode );

    if( NewTrack )
    {
        if( NewTrack->m_Flags & IS_NEW )
        {
            for( ii = 0; ii < NbPtNewTrack; ii++, NewTrack = NextS )
            {
                if( NewTrack == NULL )
                    break;
                NextS = (TRACK*) NewTrack->Pnext;
                delete NewTrack;
            }
        }
        else    /* Move : remise en ancienne position */
        {
            TRACK* Track = NewTrack;
            int    dx    = LastPos.x - PosInit.x;
            int    dy    = LastPos.y - PosInit.y;
            for( ii = 0; ii < NbPtNewTrack; ii++, Track = (TRACK*) Track->Pnext )
            {
                if( Track == NULL )
                    break;
                Track->m_Start.x -= dx;
                Track->m_Start.y -= dy;
                Track->m_End.x   -= dx;
                Track->m_End.y   -= dy;
                Track->m_Flags    = 0;
            }

            Trace_Une_Piste( Panel, DC, NewTrack, NbPtNewTrack, GR_OR );
        }

        NewTrack = NULL;
    }

    Panel->ManageCurseur = NULL;
    Panel->ForceCloseManageCurseur = NULL;
    Panel->SetCurItem( NULL );
//    Panel->m_Parent->EraseMsgBox();  SeCurItem() does this

    /* Annulation deplacement et Redessin des segments dragges */
    DRAG_SEGM* pt_drag = g_DragSegmentList;
    for( ; pt_drag != NULL; pt_drag = pt_drag->Pnext )
    {
        TRACK* Track = pt_drag->m_Segm;
        pt_drag->SetInitialValues();
        Track->SetState( EDIT, OFF );
        Track->m_Flags = 0;
        Track->Draw( Panel, DC, GR_OR );
    }

    g_HightLigth_NetCode = Old_HightLigth_NetCode;
    g_HightLigt_Status   = Old_HightLigt_Status;
    if( g_HightLigt_Status )
        ( (WinEDA_PcbFrame*) Panel->m_Parent )->DrawHightLight( DC, g_HightLigth_NetCode );

    EraseDragListe();
}


/*************************************************************************/
static void Show_MoveTrack( WinEDA_DrawPanel* panel, wxDC* DC, bool erase )
/*************************************************************************/
/* redessin du contour de la piste lors des deplacements de la souris */
{
    int          ii, dx, dy;
    TRACK*       Track;
    BASE_SCREEN* screen = panel->GetScreen();
    int          track_fill_copy = DisplayOpt.DisplayPcbTrackFill;

    DisplayOpt.DisplayPcbTrackFill = SKETCH;

    erase = TRUE;

    /* efface ancienne position si elle a ete deja dessinee */
    if( erase )
    {
        if( NewTrack )
            Trace_Une_Piste( panel, DC, NewTrack, NbPtNewTrack, GR_XOR );
    }

    /* mise a jour des coordonnees des segments de la piste */
    wxPoint Pos = screen->m_Curseur;
    dx      = Pos.x - LastPos.x;
    dy      = Pos.y - LastPos.y;
    LastPos = Pos;
    ii = NbPtNewTrack, Track = NewTrack;
    for( ; ii > 0; ii--, Track = Track->Next() )
    {
        if( Track->m_Flags & STARTPOINT )
        {
            Track->m_Start.x += dx; Track->m_Start.y += dy;
        }
        if( Track->m_Flags & ENDPOINT )
        {
            Track->m_End.x += dx; Track->m_End.y += dy;
        }
    }

    /* dessin de la nouvelle piste */
    Trace_Une_Piste( panel, DC, NewTrack, NbPtNewTrack, GR_XOR );

    /* Tracage des segments dragges */
    DRAG_SEGM* pt_drag = g_DragSegmentList;
    for( ; pt_drag != NULL; pt_drag = pt_drag->Pnext )
    {
        Track = pt_drag->m_Segm;
        if( erase )
            Track->Draw( panel, DC, GR_XOR );
        if( Track->m_Flags & STARTPOINT )
        {
            Track->m_Start.x += dx; Track->m_Start.y += dy;
        }
        if( Track->m_Flags & ENDPOINT )
        {
            Track->m_End.x += dx; Track->m_End.y += dy;
        }
        Track->Draw( panel, DC, GR_XOR );
    }

    DisplayOpt.DisplayPcbTrackFill = track_fill_copy;
}


/***********************************************************************************/
void WinEDA_PcbFrame::Start_MoveOneTrackSegment( TRACK* track, wxDC* DC, bool Drag )
/***********************************************************************************/
{
    /* Change hight light net: the new one will be hightlighted */
    Old_HightLigt_Status   = g_HightLigt_Status;
    Old_HightLigth_NetCode = g_HightLigth_NetCode;
    if( g_HightLigt_Status )
        Hight_Light( DC );

    if( Drag && track->Type() == TYPEVIA )
    {
        track->m_Flags = IS_DRAGGED | STARTPOINT | ENDPOINT;
        Collect_TrackSegmentsToDrag( DrawPanel, DC, track->m_Start,
                                     track->ReturnMaskLayer(), track->GetNet() );
        NewTrack     = track;
        NbPtNewTrack = 1;
        PosInit = track->m_Start;
    }
    else
    {
        int     diag = track->IsPointOnEnds( GetScreen()->m_Curseur, -1 );
        wxPoint pos  = (diag & STARTPOINT) ? track->m_Start : track->m_End;
        Collect_TrackSegmentsToDrag( DrawPanel, DC, pos,
                                     track->ReturnMaskLayer(), track->GetNet() );
        track->m_Flags |= IS_DRAGGED;
        NewTrack     = NULL;
        NbPtNewTrack = 0;
        PosInit = pos;
    }
    LastPos = PosInit;
    DrawPanel->ManageCurseur = Show_MoveTrack;
    DrawPanel->ForceCloseManageCurseur = Exit_MoveTrack;

    g_HightLigth_NetCode = track->GetNet();
    g_HightLigt_Status   = TRUE;
    DrawHightLight( DC, g_HightLigth_NetCode );
    DrawPanel->ManageCurseur( DrawPanel, DC, TRUE );
}


/**********************************************************************/
bool WinEDA_PcbFrame::PlaceDraggedTrackSegment( TRACK* Track, wxDC* DC )
/**********************************************************************/
/* Place a dragged track segment or via */
{
    int        errdrc;
    DRAG_SEGM* pt_drag;

    if( Track == NULL )
        return FALSE;

    // DRC control:
    if( Drc_On )
    {
        errdrc = Drc( this, DC, Track, m_Pcb->m_Track, 1 );
        if( errdrc == BAD_DRC )
            return FALSE;
        /* Tracage des segments dragges */
        pt_drag = g_DragSegmentList;
        for( ; pt_drag; pt_drag = pt_drag->Pnext )
        {
            errdrc = Drc( this, DC, pt_drag->m_Segm, m_Pcb->m_Track, 1 );
            if( errdrc == BAD_DRC )
                return FALSE;
        }
    }

    // DRC Ok: place track segments
    Track->m_Flags = 0;
    Track->Draw( DrawPanel, DC, GR_OR );

    /* Tracage des segments dragges */
    pt_drag = g_DragSegmentList;
    for( ; pt_drag; pt_drag = pt_drag->Pnext )
    {
        Track = pt_drag->m_Segm;
        Track->SetState( EDIT, OFF );
        Track->m_Flags = 0;
        Track->Draw( DrawPanel, DC, GR_OR );
    }

    EraseDragListe();

    GetScreen()->SetModify();
    DrawPanel->ManageCurseur = NULL;
    DrawPanel->ForceCloseManageCurseur = NULL;

    return TRUE;
}


#if 0

/***********************************************/
void WinEDA_PcbFrame::Place_Dupl_Route( Track* Track, wxDC* DC )
/******************************************/

/*
 *  Routine de placement d'une piste (succession de segments)
 */
{
    D_PAD*          pt_pad;
    TRACK*          pt_track, * Track, * pt_classe, * NextS;
    int             masquelayer;
    EDA_BaseStruct* LockPoint;
    int             ii, old_net_code, new_net_code, DRC_error = 0;
    wxDC*           DC = Cmd->DC;

    ActiveDrawPanel->ManageCurseur = NULL;

    if( NewTrack == NULL )
        return;

    old_net_code = NewTrack->net_code;

    /* Placement du flag BUSY de la piste originelle, qui ne doit
     *   pas etre vue dans les recherches de raccordement suivantes */
    ii = NbPtNewTrack; pt_track = NewTrack;
    for( ; ii > 0; ii--, pt_track = (TRACK*) pt_track->Pnext )
    {
        pt_track->SetState( BUSY, ON );
    }

    /* Detection du nouveau net_code */
    ii = NbPtNewTrack; pt_track = NewTrack;
    for( ; ii > 0; ii--, pt_track = (TRACK*) pt_track->Pnext )
    {
        pt_track->net_code = 0;
    }

    new_net_code = 0;
    ii = 0; pt_track = NewTrack;
    for( ; ii < NbPtNewTrack; ii++, pt_track = (TRACK*) pt_track->Pnext )
    {
        /* Localisation de la pastille ou segment en debut de segment: */
        masquelayer = tab_layer[pt_track->Layer];
        LockPoint   = LocateLockPoint( pt_track->m_Start.x, pt_track->m_Start.y, masquelayer );
        if( LockPoint )
        {
            if( LockPoint->Type() == TYPEPAD )
            {
                pt_pad = (D_PAD*) LockPoint;
                new_net_code = pt_pad->net_code;
                if( new_net_code > 0 )
                    break;
            }
            else        /* debut de piste sur un segment de piste */
            {
                Track = (TRACK*) LockPoint;
                new_net_code = Track->net_code;
                if( new_net_code > 0 )
                    break;
            }
        }
        LockPoint = LocateLockPoint( pt_track->m_End.x, pt_track->m_End.y, masquelayer );
        if( LockPoint )
        {
            if( LockPoint->Type() == TYPEPAD )
            {
                pt_pad = (D_PAD*) LockPoint;
                new_net_code = pt_pad->net_code;
                if( new_net_code > 0 )
                    break;
            }
            else        /* debut de piste sur un segment de piste */
            {
                Track = (TRACK*) LockPoint;
                new_net_code = Track->net_code;
                if( new_net_code > 0 )
                    break;
            }
        }
    }

    /* Mise a jour du nouveau net code de la piste */
    ii = 0; pt_track = NewTrack;
    for( ; ii < NbPtNewTrack; ii++, pt_track = (TRACK*) pt_track->Pnext )
    {
        pt_track->net_code = new_net_code;
    }

    /* Controle DRC de la nouvelle piste */
    ii = 0; pt_track = NewTrack;
    for( ; ii < NbPtNewTrack; ii++, pt_track = pt_track->Next() )
    {
        if( Drc_On == RUN )
            if( drc( DC, pt_track, pt_pcb->Track, 1 ) == BAD_DRC )
            {
                if( confirmation( " Erreur DRC, Place piste:" ) == YES )
                    continue;
                else
                {
                    DRC_error = 1; break;
                }
            }
    }

    if( DRC_error == 0 )
    {
        if( FlagState == MOVE_ROUTE )
        {
            /* copie nouvelle piste */
            pt_track = NewTrack;
            NewTrack = pt_track->Copy( NbPtNewTrack );
            /* effacement ancienne ( chainage et liens mauvais */
            ii = NbPtNewTrack;
            for( ; ii > 0; ii--, pt_track = NextS )
            {
                NextS = (TRACK*) pt_track->Pnext;
                pt_track ->DeleteStructure();
            }

            test_1_net_connexion( DC, old_net_code );
        }

        pt_classe = NewTrack->GetBestInsertPoint();
        NewTrack->Insert( pt_classe );

        Trace_Une_Piste( DC, NewTrack, NbPtNewTrack, GR_OR );

        /* Mise a jour des connexions sur pads et sur pistes */
        ii = 0; pt_track = NewTrack;
        for( ; ii < NbPtNewTrack; ii++, pt_track = NextS )
        {
            NextS = (TRACK*) pt_track->Pnext;
            pt_track->SetState( BEGIN_ONPAD | END_ONPAD, OFF );
            masquelayer = tab_layer[pt_track->Layer];

            /* Localisation de la pastille ou segment sur debut segment: */
            LockPoint = LocateLockPoint( pt_track->m_Start.x, pt_track->m_Start.y, masquelayer );
            if( LockPoint )
            {
                pt_track->start = LockPoint;
                if( LockPoint->Type() == TYPEPAD )
                {       /* fin de piste sur un pad */
                    pt_pad = (D_PAD*) LockPoint;
                    pt_track->SetState( BEGIN_ONPAD, ON );
                }
                else        /* debut de piste sur un segment de piste */
                {
                    Track = (TRACK*) LockPoint;
                    CreateLockPoint( &pt_track->m_Start.x, &pt_track->m_Start.y, Track, pt_track );
                }
            }

            /* Localisation de la pastille ou segment sur fin de segment: */
            LockPoint = LocateLockPoint( pt_track->m_End.x, pt_track->m_End.y, masquelayer );
            if( LockPoint )
            {
                pt_track->end = LockPoint;
                if( LockPoint->Type() == TYPEPAD )
                {       /* fin de piste sur un pad */
                    pt_pad = (D_PAD*) LockPoint;
                    pt_track->SetState( END_ONPAD, ON );
                }
                else        /* debut de piste sur un segment de piste */
                {
                    Track = (TRACK*) LockPoint;
                    CreateLockPoint( &pt_track->m_Start.x, &pt_track->m_Start.y, Track, pt_track );
                }
            }
        }

        /* Suppression du flag BUSY */
        ii = NbPtNewTrack; pt_track = NewTrack;
        for( ; ii > 0; ii--, pt_track = (TRACK*) pt_track->Pnext )
        {
            pt_track->SetState( BUSY, OFF );
        }

        test_1_net_connexion( DC, new_net_code );
        ActiveScreen->SetModify();
    }
    else    /* Erreur DRC: Annulation commande */
    {
        DisplayOpt.DisplayPcbTrackFill = SKETCH;
        Trace_Une_Piste( DC, NewTrack, NbPtNewTrack, GR_XOR );
        DisplayOpt.DisplayPcbTrackFill = Track_fill_copy;

        if( FlagState == MOVE_ROUTE )
        {       /* Remise en position de la piste deplacee */
            Track     = NewTrack;
            PosInitX -= Track->m_Start.x; PosInitY -= Track->m_Start.y;
            for( ii = 0; ii < NbPtNewTrack; ii++, Track = (TRACK*) Track->Pnext )
            {
                if( Track == NULL )
                    break;
                Track->m_Start.x += PosInitX; Track->m_Start.y += PosInitY;
                Track->m_End.x   += PosInitX; Track->m_End.y += PosInitY;
                Track->SetState( BUSY, OFF );
            }

            Trace_Une_Piste( DC, NewTrack, NbPtNewTrack, GR_OR );
        }

        if( FlagState == COPY_ROUTE )
        {       /* Suppression copie */
            for( ii = 0; ii < NbPtNewTrack; NewTrack = NextS )
            {
                if( NewTrack == NULL )
                    break;
                NextS = (TRACK*) NewTrack->Pnext;
                delete NewTrack;
            }
        }
    }
    NewTrack = NULL;
    m_Pcb->Display_Infos( Cmd );
    if( Etat_Surbrillance )
        Hight_Light( DC );
}


/************************************************/
void WinEDA_PcbFrame::Start_CopieMove_Route( TRACK* track, wxDC* DC, bool Drag )
/************************************************/

/* Routine permettant la recopie d'une piste (suite de segments) deja tracee
 */
{
    int    ii;
    TRACK* pt_segm, * pt_track;
    int    masquelayer = tab_layer[ActiveScreen->Active_Layer];
    wxDC*  DC = Cmd->DC;

    if( NewTrack )
        return;

    FlagState = (int) Cmd->Menu->param_inf;

    /* Recherche de la piste sur la couche active (non zone) */
    for( pt_segm = pt_pcb->Track; pt_segm != NULL; pt_segm = (TRACK*) pt_segm->Pnext )
    {
        pt_segm = Locate_Pistes( pt_segm, masquelayer, CURSEUR_OFF_GRILLE );
        if( pt_segm == NULL )
            break;
        break;
    }

    if( pt_segm != NULL )
    {
        if( FlagState == COPY_ROUTE )
            pt_track = Marque_Une_Piste( DC, pt_segm, &NbPtNewTrack, 0 );
        else
            pt_track = Marque_Une_Piste( DC, pt_segm, &NbPtNewTrack, GR_XOR );

        if( NbPtNewTrack ) /* Il y a NbPtNewTrack segments de piste a traiter */
        {
            /* effacement du flag BUSY de la piste originelle */
            ii = NbPtNewTrack; pt_segm = pt_track;
            for( ; ii > 0; ii--, pt_segm = (TRACK*) pt_segm->Pnext )
            {
                pt_segm->SetState( BUSY, OFF );
            }

            if( FlagState == COPY_ROUTE )
                NewTrack = pt_track->Copy( NbPtNewTrack );
            else
                NewTrack = pt_track;

            Affiche_Infos_Piste( Cmd, pt_track );

            startX = ActiveScreen->Curseur_X;
            startY = ActiveScreen->Curseur_Y;
            Place_Dupl_Route_Item.State    = WAIT;
            ActiveDrawPanel->ManageCurseur = Show_Move_Piste;
            DisplayOpt.DisplayPcbTrackFill = SKETCH;
            Trace_Une_Piste( DC, NewTrack, NbPtNewTrack, GR_XOR );
            DisplayOpt.DisplayPcbTrackFill = Track_fill_copy;
            PosInitX = NewTrack->m_Start.x; PosInitY = NewTrack->m_Start.y;
        }
    }
}


#endif

/************************************************************************/
EDA_BaseStruct* LocateLockPoint( BOARD* Pcb, wxPoint pos, int LayerMask )
/************************************************************************/

/* Routine trouvant le point " d'accrochage " d'une extremite de piste.
 *  Ce point peut etre un PAD ou un autre segment de piste
 *  Retourne:
 *      - pointeur sur ce PAD ou:
 *      - pointeur sur le segment ou:
 *      - NULL
 *  Parametres d'appel:
 *   coord pX, pY du point tst
 *   masque des couches a tester
 */
{
    D_PAD*  pt_pad;
    TRACK*  ptsegm;
    MODULE* Module;

    /* detection du point type PAD */
    pt_pad = NULL;
    Module = Pcb->m_Modules;
    for( ; Module != NULL; Module = (MODULE*) Module->Pnext )
    {
        pt_pad = Locate_Pads( Module, pos, LayerMask );
        if( pt_pad )
            return pt_pad;
    }

    /* ici aucun pad n'a ete localise: detection d'un segment de piste */

    ptsegm = Fast_Locate_Piste( Pcb->m_Track, NULL, pos, LayerMask );
    if( ptsegm == NULL )
        ptsegm = Locate_Pistes( Pcb->m_Track, pos, LayerMask );
    return ptsegm;
}


/******************************************************************************/
TRACK* CreateLockPoint( int* pX, int* pY, TRACK* ptsegm, TRACK* refsegm )
/******************************************************************************/

/* Routine de creation d'un point intermediaire sur un segment
 *  le segment ptsegm est casse en 2 segments se raccordant au point pX, pY
 *  retourne:
 *      NULL si pas de nouveau point ( c.a.d si pX, pY correspondait deja
 *      a une extremite ou:
 *      pointeur sur le segment cree
 *  si refsegm != NULL refsegm est pointeur sur le segment incident,
 *  et le point cree est l'intersection des 2 axes des segments ptsegm et
 *  refsegm
 *  retourne la valeur exacte de pX et pY
 *  Si ptsegm pointe sur une via:
 *      retourne la valeur exacte de pX et pY et ptsegm,
 *      mais ne cree pas de point supplementaire
 *
 */
{
    int    cX, cY;
    int    dx, dy;          /* Coord de l'extremite du segm ptsegm / origine */
    int    ox, oy, fx, fy;  /* coord de refsegm / origine de prsegm */
    TRACK* NewTrack;

    if( (ptsegm->m_Start.x == *pX) && (ptsegm->m_Start.y == *pY) )
        return NULL;
    if( (ptsegm->m_End.x == *pX) && (ptsegm->m_End.y == *pY) )
        return NULL;

    /* le point n'est pas sur une extremite de piste */
    if( ptsegm->Type() == TYPEVIA )
    {
        *pX = ptsegm->m_Start.x; *pY = ptsegm->m_Start.y;
        return ptsegm;
    }

    /* calcul des coord vraies du point intermediaire dans le repere d'origine
     *  = origine de ptsegm */
    cX = *pX - ptsegm->m_Start.x;
    cY = *pY - ptsegm->m_Start.y;
    dx = ptsegm->m_End.x - ptsegm->m_Start.x;
    dy = ptsegm->m_End.y - ptsegm->m_Start.y;

// ***** A COMPLETER : non utilise
    if( refsegm )
    {
        ox = refsegm->m_Start.x - ptsegm->m_Start.x;
        oy = refsegm->m_Start.y - ptsegm->m_Start.y;
        fx = refsegm->m_End.x - ptsegm->m_Start.x;
        fy = refsegm->m_End.y - ptsegm->m_Start.y;
    }

    /* pour que le point soit sur le segment ptsegm: cY/cX = dy/dx */
    if( dx == 0 )
        cX = 0;/* segm horizontal */
    else
        cY = (cX * dy) / dx;

    /* creation du point intermediaire ( c'est a dire creation d'un nouveau
     *  segment, debutant au point intermediaire */

    cX      += ptsegm->m_Start.x; cY += ptsegm->m_Start.y;
    NewTrack = ptsegm->Copy();

    NewTrack->Insert( NULL, ptsegm );
    /* correction du pointeur de fin du nouveau segment */
    NewTrack->end = ptsegm->end;

    /* le segment primitif finit au nouveau point : */
    ptsegm->m_End.x = cX; ptsegm->m_End.y = cY;
    ptsegm->SetState( END_ONPAD, OFF );

    /* le nouveau segment debute au nouveau point : */
    ptsegm = NewTrack;;
    ptsegm->m_Start.x = cX; ptsegm->m_Start.y = cY;
    ptsegm->SetState( BEGIN_ONPAD, OFF );
    *pX = cX; *pY = cY;

    return ptsegm;
}