kicad/pcbnew/class_board.cpp

/*******************************************/
/* class_board.cpp - BOARD class functions */
/*******************************************/
#include "fctsys.h"
#include "common.h"

#include "pcbnew.h"

#include "bitmaps.h"


/*****************/
/* Class BOARD: */
/*****************/

/* Constructor */
BOARD::BOARD( EDA_BaseStruct* parent, WinEDA_BasePcbFrame* frame ) :
    EDA_BaseStruct( parent, TYPEPCB )
{
    m_PcbFrame   = frame;
    m_Status_Pcb = 0;                   // Mot d'etat: Bit 1 = Chevelu calcule
    m_NbNets = 0;                       // Nombre de nets (equipotentielles)
    m_BoardSettings = &g_DesignSettings;
    m_NbPads  = 0;                      // nombre total de pads
    m_NbNodes = 0;                      // nombre de pads connectes
    m_NbLinks = 0;                      // nombre de chevelus (donc aussi nombre
                                    // minimal de pistes a tracer
    m_NbSegmTrack = 0;                  // nombre d'elements de type segments de piste
    m_NbSegmZone  = 0;                  // nombre d'elements de type segments de zone
    m_NbNoconnect = 0;                  // nombre de chevelus actifs
    m_NbLoclinks  = 0;                  // nb ratsnest local

    m_Drawings = NULL;                  // pointeur sur liste drawings
    m_Modules  = NULL;                  // pointeur sur liste zone modules
    m_Equipots = NULL;                  // pointeur liste zone equipot
    m_Track    = NULL;                  // pointeur relatif zone piste
    m_Zone             = NULL;          // pointeur tableau zone zones de cuivre
    m_Pads             = NULL;          // pointeur liste d'acces aux pads
    m_Ratsnest         = NULL;          // pointeur liste rats
    m_LocalRatsnest    = NULL;          // pointeur liste rats local
    m_CurrentLimitZone = NULL;          // pointeur liste des EDEGE_ZONES
                                // de determination des contours de zone
}


/***************/
/* Destructeur */
/***************/
BOARD::~BOARD( void )
{
}


void BOARD::UnLink( void )
{
    /* Modification du chainage arriere */
    if( Pback )
    {
        if( Pback->m_StructType == TYPEPCB )
        {
            Pback->Pnext = Pnext;
        }
        else /* Le chainage arriere pointe sur la structure "Pere" */
        {
//			Pback-> = Pnext;
        }
    }

    /* Modification du chainage avant */
    if( Pnext )
        Pnext->Pback = Pback;

    Pnext = Pback = NULL;
}


/* Routines de calcul des nombres de segments pistes et zones */
int BOARD::GetNumSegmTrack( void )
{
    TRACK* CurTrack = m_Track;
    int    ii = 0;

    for( ; CurTrack != NULL; CurTrack = (TRACK*) CurTrack->Pnext )
        ii++;

    m_NbSegmTrack = ii;
    return ii;
}


int BOARD::GetNumSegmZone( void )
{
    TRACK* CurTrack = m_Zone;
    int    ii = 0;

    for( ; CurTrack != NULL; CurTrack = (TRACK*) CurTrack->Pnext )
        ii++;

    m_NbSegmZone = ii;
    return ii;
}


// retourne le nombre de connexions manquantes
int BOARD::GetNumNoconnect( void )
{
    return m_NbNoconnect;
}


// retourne le nombre de chevelus
int BOARD::GetNumRatsnests( void )
{
    return m_NbLinks;
}


// retourne le nombre de pads a netcode > 0
int BOARD::GetNumNodes( void )
{
    return m_NbNodes;
}


/***********************************/
bool BOARD::ComputeBoundaryBox( void )
/***********************************/

/* Determine le rectangle d'encadrement du pcb
 *  Ce rectangle englobe les contours pcb, pads , vias et piste
 *  Sortie:
 *  m_PcbBox
 * 
 *  retourne:
 *      0 si aucun element utile
 *      1 sinon
 */
{
    int             rayon, cx, cy, d, xmin, ymin, xmax, ymax;
    bool            Has_Items = FALSE;
    EDA_BaseStruct* PtStruct;
    DRAWSEGMENT*    ptr;
    TRACK*          Track;

    xmin = ymin = 0x7FFFFFFFl;
    xmax = ymax = -0x7FFFFFFFl;

    /* Analyse des Contours PCB */
    PtStruct = m_Drawings;
    for( ; PtStruct != NULL; PtStruct = PtStruct->Pnext )
    {
        if( PtStruct->m_StructType != TYPEDRAWSEGMENT )
            continue;

        ptr = (DRAWSEGMENT*) PtStruct;
        d   = (ptr->m_Width / 2) + 1;
        
        if( ptr->m_Shape == S_CIRCLE )
        {
            cx        = ptr->m_Start.x; cy = ptr->m_Start.y;
            rayon     = (int) hypot( (double) (ptr->m_End.x - cx), (double) (ptr->m_End.y - cy) );
            rayon    += d;
            xmin      = min( xmin, cx - rayon );
            ymin      = min( ymin, cy - rayon );
            xmax      = max( xmax, cx + rayon );
            ymax      = max( ymax, cy + rayon );
            Has_Items = TRUE;
        }
        else
        {
            cx        = min( ptr->m_Start.x, ptr->m_End.x );
            cy        = min( ptr->m_Start.y, ptr->m_End.y );
            xmin      = min( xmin, cx - d );
            ymin      = min( ymin, cy - d );
            cx        = max( ptr->m_Start.x, ptr->m_End.x );
            cy        = max( ptr->m_Start.y, ptr->m_End.y );
            xmax      = max( xmax, cx + d );
            ymax      = max( ymax, cy + d );
            Has_Items = TRUE;
        }
    }

    /* Analyse des Modules  */
    MODULE* module = m_Modules;
    for( ; module != NULL; module = (MODULE*) module->Pnext )
    {
        Has_Items = TRUE;
        xmin = min( xmin, ( module->m_Pos.x + module->m_BoundaryBox.GetX() ) );
        ymin = min( ymin, ( module->m_Pos.y + module->m_BoundaryBox.GetY() ) );
        xmax = max( xmax, module->m_Pos.x + module->m_BoundaryBox.GetRight() );
        ymax = max( ymax, module->m_Pos.y + module->m_BoundaryBox.GetBottom() );

        D_PAD* pt_pad = module->m_Pads;
        for( ; pt_pad != NULL; pt_pad = (D_PAD*) pt_pad->Pnext )
        {
            d    = pt_pad->m_Rayon;
            xmin = min( xmin, pt_pad->m_Pos.x - d );
            ymin = min( ymin, pt_pad->m_Pos.y - d );
            xmax = max( xmax, pt_pad->m_Pos.x + d );
            ymax = max( ymax, pt_pad->m_Pos.y + d );
        }
    }

    /* Analyse des segments de piste et zone*/
    for( Track = m_Track; Track != NULL; Track = (TRACK*) Track->Pnext )
    {
        d         = (Track->m_Width / 2) + 1;
        cx        = min( Track->m_Start.x, Track->m_End.x );
        cy        = min( Track->m_Start.y, Track->m_End.y );
        xmin      = min( xmin, cx - d );
        ymin      = min( ymin, cy - d );
        cx        = max( Track->m_Start.x, Track->m_End.x );
        cy        = max( Track->m_Start.y, Track->m_End.y );
        xmax      = max( xmax, cx + d );
        ymax      = max( ymax, cy + d );
        Has_Items = TRUE;
    }

    for( Track = m_Zone; Track != NULL; Track = (TRACK*) Track->Pnext )
    {
        d         = (Track->m_Width / 2) + 1;
        cx        = min( Track->m_Start.x, Track->m_End.x );
        cy        = min( Track->m_Start.y, Track->m_End.y );
        xmin      = min( xmin, cx - d );
        ymin      = min( ymin, cy - d );
        cx        = max( Track->m_Start.x, Track->m_End.x );
        cy        = max( Track->m_Start.y, Track->m_End.y );
        xmax      = max( xmax, cx + d );
        ymax      = max( ymax, cy + d );
        Has_Items = TRUE;
    }

    if( !Has_Items && m_PcbFrame )
    {
        if( m_PcbFrame->m_Draw_Sheet_Ref )
        {
            xmin = ymin = 0;
            xmax = m_PcbFrame->m_CurrentScreen->ReturnPageSize().x;
            ymax = m_PcbFrame->m_CurrentScreen->ReturnPageSize().y;
        }
        else
        {
            xmin = -m_PcbFrame->m_CurrentScreen->ReturnPageSize().x / 2;
            ymin = -m_PcbFrame->m_CurrentScreen->ReturnPageSize().y / 2;
            xmax = m_PcbFrame->m_CurrentScreen->ReturnPageSize().x / 2;
            ymax = m_PcbFrame->m_CurrentScreen->ReturnPageSize().y / 2;
        }
    }

    m_BoundaryBox.SetX( xmin );
    m_BoundaryBox.SetY( ymin );
    m_BoundaryBox.SetWidth( xmax - xmin );
    m_BoundaryBox.SetHeight( ymax - ymin );

    return Has_Items;
}