/******************************************************/
/*	 Edition des contours du pcb: Routines		  	  */
/* d'effacement et d'edition  de segments et contours */
/*   du type PCB, draw, edgePCB						  */
/******************************************************/

#include "fctsys.h"
#include "gr_basic.h"
#include "common.h"
#include "class_drawpanel.h"
#include "confirm.h"

#include "pcbnew.h"
#include "protos.h"

/* Routines Locales */
static void Exit_EditEdge( WinEDA_DrawPanel* Panel, wxDC* DC );
static void Montre_Position_NewSegment( WinEDA_DrawPanel* panel, wxDC* DC, bool erase );
static void Move_Segment( WinEDA_DrawPanel* panel, wxDC* DC, bool erase );

/* Variables locales : */
static wxPoint cursor_pos;  // position originelle du curseur souris (fct deplacement)
static wxPoint cursor_pos0; // position courante du curseur souris

/****************************************************************************/
void WinEDA_PcbFrame::Start_Move_DrawItem( DRAWSEGMENT* drawitem, wxDC* DC )
/****************************************************************************/

/* Routine de preparation du deplacement d'un element graphique type DRAWSEGMENT
 */
{
    if( drawitem == NULL )
        return;
    drawitem->Draw( DrawPanel, DC, GR_XOR );
    drawitem->m_Flags |= IS_MOVED;
    cursor_pos = cursor_pos0 = GetScreen()->m_Curseur;
    drawitem->DisplayInfo( this );
    DrawPanel->ManageCurseur = Move_Segment;
    DrawPanel->ForceCloseManageCurseur = Exit_EditEdge;
    SetCurItem( drawitem );
    DrawPanel->ManageCurseur( DrawPanel, DC, FALSE );
}


/*********************************************************************/
void WinEDA_PcbFrame::Place_DrawItem( DRAWSEGMENT* drawitem, wxDC* DC )
/*********************************************************************/

/*
 *  Routine de placement de l'element graphique type DRAWSEGMENT en cours de deplacement
 */
{
    if( drawitem == NULL )
        return;

    drawitem->Draw( DrawPanel, DC, GR_OR );
    DrawPanel->ManageCurseur = NULL;
    DrawPanel->ForceCloseManageCurseur = NULL;
    SetCurItem( NULL );
    GetScreen()->SetModify();
    drawitem->m_Flags = 0;
}


/************************************************************************/
static void Move_Segment( WinEDA_DrawPanel* panel, wxDC* DC, bool erase )
/************************************************************************/
/* redessin du contour du Segment Edge lors des deplacements de la souris */
{
    DRAWSEGMENT* Segment = (DRAWSEGMENT*)
                           panel->GetScreen()->GetCurItem();
    int          t_fill = DisplayOpt.DisplayDrawItems;

    if( Segment == NULL )
        return;

    DisplayOpt.DisplayDrawItems = SKETCH;

    /* efface ancienne position */
    if( erase )
        Segment->Draw( panel, DC, GR_XOR );

    wxPoint delta;
    delta.x = panel->GetScreen()->m_Curseur.x - cursor_pos.x;
    delta.y = panel->GetScreen()->m_Curseur.y - cursor_pos.y;
    Segment->m_Start.x += delta.x;
    Segment->m_Start.y += delta.y;
    Segment->m_End.x   += delta.x;
    Segment->m_End.y   += delta.y;
    cursor_pos = panel->GetScreen()->m_Curseur;

    Segment->Draw( panel, DC, GR_XOR );
    DisplayOpt.DisplayDrawItems = t_fill;
}


/**************************************************************************/
void WinEDA_PcbFrame::Delete_Segment_Edge( DRAWSEGMENT* Segment, wxDC* DC )
/**************************************************************************/
{
    EDA_BaseStruct* PtStruct;
    int             track_fill_copy = DisplayOpt.DisplayDrawItems;

    if( Segment == NULL )
        return;

    if( Segment->m_Flags & IS_NEW )  // Trace en cours, on peut effacer le dernier segment
    {
        /* effacement du segment en cours de trace */
        DisplayOpt.DisplayDrawItems = SKETCH;
        Segment->Draw( DrawPanel, DC, GR_XOR );
        PtStruct = Segment->Back();
        Segment ->DeleteStructure();
        if( PtStruct && (PtStruct->Type() == TYPE_DRAWSEGMENT ) )
            Segment = (DRAWSEGMENT*) PtStruct;
        DisplayOpt.DisplayDrawItems = track_fill_copy;
        SetCurItem( NULL );
    }
    else
    {
        Segment->Draw( DrawPanel, DC, GR_XOR );
        Segment->m_Flags = 0;
        Segment ->DeleteStructure();
        SetCurItem( NULL );
        GetScreen()->SetModify();
    }
}


/******************************************************************************/
void WinEDA_PcbFrame::Delete_Drawings_All_Layer( DRAWSEGMENT* Segment, wxDC* DC )
/******************************************************************************/
{
    int             layer = Segment->GetLayer();

    if( layer <= LAST_COPPER_LAYER )
    {
        DisplayError( this, _( "Copper layer global delete not allowed!" ), 20 );
        return;
    }

    if( Segment->m_Flags )
    {
        DisplayError( this, _( "Segment is being edited" ), 10 );
        return;
    }

    wxString msg = _( "Delete Layer " ) + GetBoard()->GetLayerName( layer );
    if( !IsOK( this, msg ) )
        return;

    BOARD_ITEM*     PtNext;
    for( BOARD_ITEM* item = GetBoard()->m_Drawings;  item;  item = PtNext )
    {
        GetScreen()->SetModify();
        PtNext = item->Next();

        switch( item->Type() )
        {
        case TYPE_DRAWSEGMENT:
        case TYPE_TEXTE:
        case TYPE_COTATION:
            if( item->GetLayer() == layer )
            {
                item->Draw( DrawPanel, DC, GR_XOR );
                item->DeleteStructure();
            }
            break;

        default:
            DisplayError( this, wxT( "Type Drawing Inconnu" ) );
            break;
        }
    }
}


/*************************************************************/
static void Exit_EditEdge( WinEDA_DrawPanel* Panel, wxDC* DC )
/*************************************************************/
{
    DRAWSEGMENT* Segment = (DRAWSEGMENT*) Panel->GetScreen()->GetCurItem();

    if( Segment == NULL )
        return;

    if( Segment->m_Flags & IS_NEW )
    {
        Panel->ManageCurseur( Panel, DC, FALSE );
        Segment ->DeleteStructure();
        Segment = NULL;
    }
    else
    {
        wxPoint             pos = Panel->GetScreen()->m_Curseur;
        Panel->GetScreen()->m_Curseur = cursor_pos0;
        Panel->ManageCurseur( Panel, DC, TRUE );
        Panel->GetScreen()->m_Curseur = pos;
        Segment->m_Flags = 0;
        Segment->Draw( Panel, DC, GR_OR );
    }
    Panel->ManageCurseur = NULL;
    Panel->ForceCloseManageCurseur = NULL;
    ((WinEDA_PcbFrame*)Panel->m_Parent)->SetCurItem( NULL );
}


/**********************************************************************/
DRAWSEGMENT* WinEDA_PcbFrame::Begin_DrawSegment( DRAWSEGMENT* Segment,
                                                 int shape, wxDC* DC )
/**********************************************************************/

/* Routine d'initialisation du trace d'un segment de type autre que piste
 */
{
    int          s_large;
    int          angle = 0;
    DRAWSEGMENT* DrawItem;

    s_large = g_DesignSettings.m_DrawSegmentWidth;
    if( ((PCB_SCREEN*)GetScreen())->m_Active_Layer == EDGE_N )
    {
        s_large = g_DesignSettings.m_EdgeSegmentWidth;
    }

    if( shape == S_ARC )
        angle = 900;

    if( Segment == NULL )        /* debut reel du trace */
    {
        SetCurItem( Segment = new DRAWSEGMENT( GetBoard() ) );
        Segment->m_Flags = IS_NEW;
        Segment->SetLayer( ((PCB_SCREEN*)GetScreen())->m_Active_Layer );
        Segment->m_Width = s_large;
        Segment->m_Shape = shape;
        Segment->m_Angle = 900;
        Segment->m_Start = Segment->m_End = GetScreen()->m_Curseur;
        DrawPanel->ManageCurseur = Montre_Position_NewSegment;
        DrawPanel->ForceCloseManageCurseur = Exit_EditEdge;
    }
    else    /* trace en cours : les coord du point d'arrivee ont ete mises
             *  a jour par la routine Montre_Position_NewSegment*/
    {
        if( Segment->m_Start != Segment->m_End )
        {
            if( Segment->m_Shape == S_SEGMENT )
            {
                GetBoard()->Add( Segment );

                GetScreen()->SetModify();
                Segment->m_Flags = 0;

                Segment->Draw( DrawPanel, DC, GR_OR );

                DrawItem = Segment;

                SetCurItem( Segment = new DRAWSEGMENT( GetBoard() ) );

                Segment->m_Flags = IS_NEW;
                Segment->SetLayer( DrawItem->GetLayer() );
                Segment->m_Width = s_large;
                Segment->m_Shape = DrawItem->m_Shape;
                Segment->m_Type  = DrawItem->m_Type;
                Segment->m_Angle = DrawItem->m_Angle;
                Segment->m_Start = Segment->m_End = DrawItem->m_End;
                Montre_Position_NewSegment( DrawPanel, DC, FALSE );
            }
            else
            {
                End_Edge( Segment, DC );
                Segment = NULL;
            }
        }
    }
    return Segment;
}


/***************************************************************/
void WinEDA_PcbFrame::End_Edge( DRAWSEGMENT* Segment, wxDC* DC )
/***************************************************************/
{
    if( Segment == NULL )
        return;
    Segment->Draw( DrawPanel, DC, GR_OR );

    /* Effacement si Longueur nulle */
    if( (Segment->m_Start.x == Segment->m_End.x)
       && (Segment->m_Start.y == Segment->m_End.y) )
        Segment ->DeleteStructure();

    else
    {
        Segment->m_Flags = 0;

        GetBoard()->Add( Segment );

        GetScreen()->SetModify();
    }

    DrawPanel->ManageCurseur = NULL;
    DrawPanel->ForceCloseManageCurseur = NULL;
    SetCurItem( NULL );
}


/************************************************************/
static void Montre_Position_NewSegment( WinEDA_DrawPanel* panel,
                                        wxDC* DC, bool erase )
/************************************************************/
/* redessin du contour du Segment Edge lors des deplacements de la souris */
{
    DRAWSEGMENT* Segment = (DRAWSEGMENT*)
                           panel->GetScreen()->GetCurItem();
    int          t_fill = DisplayOpt.DisplayDrawItems;

    if( Segment == NULL )
        return;

    DisplayOpt.DisplayDrawItems = SKETCH;

    /* efface ancienne position */
    if( erase )
        Segment->Draw( panel, DC, GR_XOR );

    if( Segments_45_Only && (Segment->m_Shape == S_SEGMENT ) )
    {
        Calcule_Coord_Extremite_45( Segment->m_Start.x, Segment->m_Start.y,
                                    &Segment->m_End.x, &Segment->m_End.y );
    }
    else    /* ici l'angle d'inclinaison est quelconque */
    {
        Segment->m_End = panel->GetScreen()->m_Curseur;
    }

    Segment->Draw( panel, DC, GR_XOR );
    DisplayOpt.DisplayDrawItems = t_fill;
}