423 lines
13 KiB
C++
423 lines
13 KiB
C++
/*********************************************/
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/* Edition des pistes: Routines d'effacement */
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/* Effacement de segment, piste, net et zone */
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/*********************************************/
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#include "fctsys.h"
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#include "common.h"
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#include "pcbnew.h"
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#include "protos.h"
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class TSTSEGM /* memorisation des segments marques */
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{
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public:
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TSTSEGM* Pnext, * Pback;
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TRACK* RefTrack;
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public:
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TSTSEGM( TRACK * Father ) {
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Pback = Pnext = NULL;
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RefTrack = Father;
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}
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};
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/* Routines externes : */
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void Montre_Position_New_Piste( int flag );/* defini dans editrack.cc */
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/* Routines Locales */
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static void Marque_Chaine_segments( BOARD* Pcb, wxPoint ref_pos, int masklayer );
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/* Variables locales */
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TSTSEGM* ListSegm = NULL;
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/****************************************************************************/
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TRACK* Marque_Une_Piste( WinEDA_BasePcbFrame* frame, wxDC* DC,
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TRACK* pt_segm, int* nb_segm, int flagcolor )
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/****************************************************************************/
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/* Routine de Marquage de 1 piste, a partir du segment pointe par pt_segm.
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* le segment pointe est marque puis les segments connectes
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* jusqu'a un pad ou un point de jonction de plus de 2 segments
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* le marquage est la mise a 1 du bit BUSY
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* Les segments sont ensuite reclasses pour etre contigus en liste chainee
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* Retourne:
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* adresse du 1er segment de la chaine creee
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* nombre de segments
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*/
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{
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int NbSegmBusy, masque_layer;
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TRACK* Track, * FirstTrack, * NextTrack;
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TSTSEGM* Segm, * NextSegm;
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*nb_segm = 0;
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if( pt_segm == NULL )
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return NULL;
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/* Marquage du segment pointe */
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if( flagcolor )
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pt_segm->Draw( frame->DrawPanel, DC, flagcolor );
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pt_segm->SetState( BUSY, ON );
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masque_layer = pt_segm->ReturnMaskLayer();
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ListSegm = new TSTSEGM( pt_segm );
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/* Traitement du segment pointe : si c'est un segment, le cas est simple.
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* Si c'est une via, on doit examiner le nombre de segments connectes.
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* Si <=2, on doit detecter une piste, si > 2 seule la via est marquee
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*/
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if( pt_segm->Type() == TYPEVIA )
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{
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TRACK* Segm1, * Segm2 = NULL, * Segm3 = NULL;
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Segm1 = Fast_Locate_Piste( frame->m_Pcb->m_Track, NULL,
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pt_segm->m_Start, masque_layer );
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if( Segm1 )
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{
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Segm2 = Fast_Locate_Piste( (TRACK*) Segm1->Pnext, NULL,
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pt_segm->m_Start, masque_layer );
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}
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if( Segm2 )
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{
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Segm3 = Fast_Locate_Piste( (TRACK*) Segm2->Pnext, NULL,
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pt_segm->m_Start, masque_layer );
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}
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if( Segm3 )
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{
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*nb_segm = 1; return pt_segm;
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}
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if( Segm1 )
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{
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masque_layer = Segm1->ReturnMaskLayer();
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Marque_Chaine_segments( frame->m_Pcb, pt_segm->m_Start, masque_layer );
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}
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if( Segm2 )
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{
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masque_layer = Segm2->ReturnMaskLayer();
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Marque_Chaine_segments( frame->m_Pcb, pt_segm->m_Start, masque_layer );
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}
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}
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else /* Marquage de la chaine connectee aux extremites du segment */
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{
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Marque_Chaine_segments( frame->m_Pcb, pt_segm->m_Start, masque_layer );
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Marque_Chaine_segments( frame->m_Pcb, pt_segm->m_End, masque_layer );
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}
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/* marquage des vias (vias non connectees ou inutiles */
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for( Segm = ListSegm; Segm != NULL; Segm = Segm->Pnext )
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{
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int layer;
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if( Segm->RefTrack->Type() != TYPEVIA )
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continue;
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if( Segm->RefTrack == pt_segm )
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continue;
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Segm->RefTrack->SetState( BUSY, ON );
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masque_layer = Segm->RefTrack->ReturnMaskLayer();
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Track = Fast_Locate_Piste( frame->m_Pcb->m_Track, NULL,
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Segm->RefTrack->m_Start,
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masque_layer );
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if( Track == NULL )
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continue;
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/* Test des connexions: si via utile: suppression marquage */
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layer = Track->GetLayer();
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while( ( Track = Fast_Locate_Piste( (TRACK*) Track->Pnext, NULL,
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Segm->RefTrack->m_Start,
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masque_layer ) ) != NULL )
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{
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if( layer != Track->GetLayer() )
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{
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Segm->RefTrack->SetState( BUSY, OFF );
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break;
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}
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}
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}
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/* liberation memoire */
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for( Segm = ListSegm; Segm != NULL; Segm = NextSegm )
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{
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NextSegm = Segm->Pnext; delete Segm;
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}
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ListSegm = NULL;
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/* Reclassement des segments marques en une chaine */
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FirstTrack = frame->m_Pcb->m_Track; NbSegmBusy = 0;
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for( ; FirstTrack != NULL; FirstTrack = (TRACK*) FirstTrack->Pnext )
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{ /* recherche du debut de la liste des segments marques a BUSY */
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if( FirstTrack->GetState( BUSY ) )
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{
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NbSegmBusy = 1; break;
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}
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}
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/* Reclassement de la chaine debutant a FirstTrack et finissant
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* au dernier segment marque. FirstTrack n'est pas modifie */
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Track = (TRACK*) FirstTrack->Pnext;
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for( ; Track != NULL; Track = NextTrack )
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{
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NextTrack = (TRACK*) Track->Pnext;
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if( Track->GetState( BUSY ) )
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{
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NbSegmBusy++;
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Track->UnLink();
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Track->Insert( frame->m_Pcb, FirstTrack );
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}
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}
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*nb_segm = NbSegmBusy;
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if( flagcolor )
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Trace_Une_Piste( frame->DrawPanel, DC, FirstTrack, NbSegmBusy, flagcolor );
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return FirstTrack;
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}
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/********************************************************************************/
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static void Marque_Chaine_segments( BOARD* Pcb, wxPoint ref_pos, int masque_layer )
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/********************************************************************************/
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/*
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* routine utilisee par Supprime_1_Piste()
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* Positionne le bit BUSY dans la chaine de segments commencant
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* au point ox, oy sur la couche layer
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*
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* Les vias sont mises en liste des segments traites mais ne sont pas
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* marquees.
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*/
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{
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TRACK* pt_segm, // Pointe le segment courant analyse
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* pt_via, // pointe la via reperee, eventuellement a detruire
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* MarqSegm; // pointe le segment a detruire (= NULL ou pt_segm
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int NbSegm;
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TSTSEGM* Segm;
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if( Pcb->m_Track == NULL )
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return;
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/* Marquage de la chaine */
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for( ; ; )
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{
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if( Fast_Locate_Pad_Connecte( Pcb, ref_pos, masque_layer ) != NULL )
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return;
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/* Localisation d'une via (car elle connecte plusieurs segments) */
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pt_via = Fast_Locate_Via( Pcb->m_Track, NULL, ref_pos, masque_layer );
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if( pt_via )
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{
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if( pt_via->GetState( EDIT ) )
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return;
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masque_layer = pt_via->ReturnMaskLayer();
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Segm = new TSTSEGM( pt_via );
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Segm->Pnext = ListSegm;
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ListSegm->Pback = Segm;
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ListSegm = Segm;
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}
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/* Recherche des segments connectes au point ref_pos
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* si 1 segment: peut etre marque
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* si > 1 segment:
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* le segment ne peut etre marque
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*/
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pt_segm = Pcb->m_Track; MarqSegm = NULL;
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NbSegm = 0;
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while( ( pt_segm = Fast_Locate_Piste( pt_segm, NULL,
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ref_pos, masque_layer ) ) != NULL )
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{
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if( pt_segm->GetState( EDIT ) ) /* Fin de piste */
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return;
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if( pt_segm->GetState( BUSY ) )
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{
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pt_segm = (TRACK*) pt_segm->Pnext;
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continue;
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}
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if( pt_segm == pt_via ) /* deja traite */
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{
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pt_segm = (TRACK*) pt_segm->Pnext;
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continue;
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}
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NbSegm++;
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if( NbSegm == 1 ) /* 1ere detection de segment de piste */
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{
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MarqSegm = pt_segm;
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pt_segm = (TRACK*) pt_segm->Pnext;
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}
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else /* 2eme detection de segment -> fin de piste */
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{
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return;
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}
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}
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if( MarqSegm )
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{
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/* preparation de la nouvelle recherche */
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masque_layer = MarqSegm->ReturnMaskLayer();
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if( ref_pos == MarqSegm->m_Start )
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{
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ref_pos = MarqSegm->m_End;
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}
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else
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{
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ref_pos = MarqSegm->m_Start;
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}
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pt_segm = Pcb->m_Track; /* reinit recherche des segments */
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/* Marquage et mise en liste du segment */
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Segm = new TSTSEGM( MarqSegm );
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Segm->Pnext = ListSegm;
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ListSegm->Pback = Segm;
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ListSegm = Segm;
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MarqSegm->SetState( BUSY, ON );
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}
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else
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return;
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}
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}
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/********************************************************/
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int ReturnEndsTrack( TRACK* RefTrack, int NbSegm,
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TRACK** StartTrack, TRACK** EndTrack )
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/**********************************************************/
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/* Calcule les coordonnes des extremites d'une piste
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* retourne 1 si OK, 0 si piste bouclee
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* Retourne dans *StartTrack en *EndTrack les segments de debut et fin
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* Les coord StartTrack->m_Start.x, m_Start.y contiennent le debut de la piste
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* Les coord EndTrack->m_End.x, m_End.y contiennent le debut de la piste
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* Les segments sont supposes chaines de facon consecutive
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*/
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{
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TRACK* Track, * via, * segm, * TrackListEnd;
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int NbEnds, masque_layer, ii, ok = 0;
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if( NbSegm <= 1 )
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{
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*StartTrack = *EndTrack = RefTrack;
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return 1; /* cas trivial */
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}
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/* calcul de la limite d'analyse */
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*StartTrack = *EndTrack = NULL;
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TrackListEnd = Track = RefTrack; ii = 0;
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for( ; (Track != NULL) && (ii < NbSegm); ii++, Track = (TRACK*) Track->Pnext )
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{
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TrackListEnd = Track;
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Track->m_Param = 0;
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}
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/* Calcul des extremites */
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NbEnds = 0; Track = RefTrack; ii = 0;
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for( ; (Track != NULL) && (ii < NbSegm); ii++, Track = (TRACK*) Track->Pnext )
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{
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if( Track->Type() == TYPEVIA )
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continue;
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masque_layer = Track->ReturnMaskLayer();
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via = Fast_Locate_Via( RefTrack, TrackListEnd,
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Track->m_Start, masque_layer );
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if( via )
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{
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masque_layer |= via->ReturnMaskLayer();
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via->SetState( BUSY, ON );
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}
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Track->SetState( BUSY, ON );
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segm = Fast_Locate_Piste( RefTrack, TrackListEnd,
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Track->m_Start, masque_layer );
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Track->SetState( BUSY, OFF );
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if( via )
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via->SetState( BUSY, OFF );
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if( segm == NULL )
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{
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switch( NbEnds )
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{
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case 0:
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*StartTrack = Track; NbEnds++;
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break;
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case 1:
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int BeginPad, EndPad;
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*EndTrack = Track;
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/* permutation de ox,oy avec fx,fy */
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BeginPad = Track->GetState( BEGIN_ONPAD );
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EndPad = Track->GetState( END_ONPAD );
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Track->SetState( BEGIN_ONPAD | END_ONPAD, OFF );
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if( BeginPad )
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Track->SetState( END_ONPAD, ON );
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if( EndPad )
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Track->SetState( BEGIN_ONPAD, ON );
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EXCHG( Track->m_Start, Track->m_End );
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EXCHG( Track->start, Track->end );
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ok = 1; return ok;
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}
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}
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masque_layer = Track->ReturnMaskLayer();
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via = Fast_Locate_Via( RefTrack, TrackListEnd,
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Track->m_End, masque_layer );
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if( via )
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{
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masque_layer |= via->ReturnMaskLayer();
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via->SetState( BUSY, ON );
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}
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Track->SetState( BUSY, ON );
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segm = Fast_Locate_Piste( RefTrack, TrackListEnd,
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Track->m_End, masque_layer );
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Track->SetState( BUSY, OFF );
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if( via )
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via->SetState( BUSY, OFF );
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if( segm == NULL )
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{
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switch( NbEnds )
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{
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case 0:
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int BeginPad, EndPad;
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*StartTrack = Track; NbEnds++;
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/* permutation de ox,oy avec fx,fy */
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BeginPad = Track->GetState( BEGIN_ONPAD );
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EndPad = Track->GetState( END_ONPAD );
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Track->SetState( BEGIN_ONPAD | END_ONPAD, OFF );
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if( BeginPad )
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Track->SetState( END_ONPAD, ON );
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if( EndPad )
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Track->SetState( BEGIN_ONPAD, ON );
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EXCHG( Track->m_Start, Track->m_End );
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EXCHG( Track->start, Track->end );
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break;
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case 1:
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*EndTrack = Track;
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ok = 1; return ok;
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}
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}
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}
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return ok;
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}
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/***************************************************************************/
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void ListSetState( EDA_BaseStruct* Start, int NbItem, int State, int onoff )
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/***************************************************************************/
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/* Met a jour le membre .state d'une chaine de structures
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*/
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{
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if( Start == NULL )
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return;
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for( ; (Start != NULL) && (NbItem > 0); NbItem--, Start = Start->Pnext )
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{
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Start->SetState( State, onoff );
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}
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}
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