/**
 * @file class_board_item.cpp
 * @brief Class BOARD_ITEM definition and  some basic functions.
 */

#include <fctsys.h>
#include <common.h>
#include <pcbnew.h>

#include <class_board.h>


wxString BOARD_ITEM::ShowShape( STROKE_T aShape )
{
    switch( aShape )
    {
    case S_SEGMENT:         return _( "Line" );
    case S_RECT:            return _( "Rect" );
    case S_ARC:             return _( "Arc" );
    case S_CIRCLE:          return _( "Circle" );
    case S_CURVE:           return _( "Bezier Curve" );
    case S_POLYGON:         return _( "Polygon" );
    default:                return wxT( "??" );
    }
}


void BOARD_ITEM::UnLink()
{
    DLIST<BOARD_ITEM>* list = (DLIST<BOARD_ITEM>*) GetList();
    wxASSERT( list );

    if( list )
        list->Remove( this );
}


BOARD* BOARD_ITEM::GetBoard() const
{
    if( Type() == PCB_T )
        return (BOARD*) this;

    BOARD_ITEM* parent = GetParent();

    if( parent )
        return parent->GetBoard();

    return NULL;
}


wxString BOARD_ITEM::GetLayerName() const
{
    wxString layerName;
    BOARD* board = GetBoard();

    if( board != NULL )
        return board->GetLayerName( m_Layer ).Trim();

    wxFAIL_MSG( wxT( "No board found for board item type " ) + GetClass() );
    layerName = _( "** undefined layer **" );

    return layerName;
}


/** @todo Move Pcbnew version of FormatBIU() where ever the common DSO/DSL code ends up. */
std::string FormatBIU( int aValue )
{
#if !defined( USE_PCBNEW_NANOMETRES )
    wxFAIL_MSG( wxT( "Cannot use FormatBIU() unless Pcbnew is build with PCBNEW_NANOMETERS=ON." ) );
#endif

    char    buf[50];
    double  engUnits = aValue / 1000000.0;
    int     len;

    if( engUnits != 0.0 && fabs( engUnits ) <= 0.0001 )
    {
        // printf( "f: " );
        len = snprintf( buf, 49, "%.10f", engUnits );

        while( --len > 0 && buf[len] == '0' )
            buf[len] = '\0';

        ++len;
    }
    else
    {
        // printf( "g: " );
        len = snprintf( buf, 49, "%.10g", engUnits );
    }

    return std::string( buf, len );
}