From d1a8285f818eb7e5c3d6a05709ea21a808490b8c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= <debian@jff-webhosting.net>
Date: Mon, 19 Mar 2018 19:55:58 +0100
Subject: New upstream version 5.1.0

---
 app/bin/cturntbl.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 56 insertions(+), 8 deletions(-)

(limited to 'app/bin/cturntbl.c')

diff --git a/app/bin/cturntbl.c b/app/bin/cturntbl.c
index 31f33ed..9264572 100644
--- a/app/bin/cturntbl.c
+++ b/app/bin/cturntbl.c
@@ -1,8 +1,5 @@
-/*
- * $Header: /home/dmarkle/xtrkcad-fork-cvs/xtrkcad/app/bin/cturntbl.c,v 1.4 2008-03-06 19:35:06 m_fischer Exp $
- *
+/** \file cturntbl.c
  * TURNTABLE
- *
  */
 
 /*  XTrkCad - Model Railroad CAD
@@ -23,9 +20,17 @@
  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
-#include "track.h"
+#include <math.h>
+#include <string.h>
+
 #include "cstraigh.h"
+#include "cundo.h"
+#include "fileio.h"
 #include "i18n.h"
+#include "messages.h"
+#include "param.h"
+#include "track.h"
+#include "utility.h"
 
 static TRKTYP_T T_TURNTABLE = -1;
 
@@ -233,7 +238,7 @@ static struct {
 		coOrd orig;
 		DIST_T diameter;
 		long epCnt;
-		LAYER_T layerNumber;
+		unsigned int layerNumber;
 		} trntblData;
 typedef enum { OR, RA, EC, LY } trntblDesc_e;
 static descData_t trntblDesc[] = {
@@ -584,6 +589,26 @@ static STATUS_T ModifyTurntable( track_p trk, wAction_t action, coOrd pos )
 	return C_ERROR;
 }
 
+EXPORT BOOL_T ConnectTurntableTracks(
+		track_p trk1,
+		EPINX_T ep1,
+		track_p trk2,
+		EPINX_T ep2 ) {
+	coOrd center, pos;
+	DIST_T radius;
+	TurntableGetCenter( trk1, &center, &radius );
+	pos = GetTrkEndPos(trk2,ep2);
+	ANGLE_T angle = FindAngle(center, GetTrkEndPos(trk2,ep2));
+	if (NormalizeAngle(GetTrkEndAngle(trk2,ep2) + 180 - angle) < connectAngle) {
+		if (FindDistance(center,pos)-radius < connectDistance) {
+			EPINX_T ep = NewTurntableEndPt(trk1,angle);
+			ConnectTracks( trk1, ep, trk2, ep2 );
+			return TRUE;
+		}
+	}
+	return FALSE;
+}
+
 
 static BOOL_T GetParamsTurntable( int inx, track_p trk, coOrd pos, trackParams_t * params )
 {
@@ -604,6 +629,8 @@ static BOOL_T GetParamsTurntable( int inx, track_p trk, coOrd pos, trackParams_t
 	params->lineEnd = params->lineOrig;
 	params->len = 0.0;
 	params->arcR = 0.0;
+	params->ttcenter = center;	//Turntable
+	params->ttradius = radius;	//Turntable
 	return TRUE;
 }
 
@@ -623,11 +650,27 @@ static BOOL_T MoveEndPtTurntable( track_p *trk, EPINX_T *ep, coOrd pos, DIST_T d
 		d -= d0;
 		Translate( &pos, pos, angle0+180, d0 );
 	}
-	if (d < r) {
+	if (small((r-d)/2)) {
+		Translate( &pos, posCen, angle0+180, r);   //Make radius equal if close
+	} else if (d < r) {
 		ErrorMessage( MSG_POINT_INSIDE_TURNTABLE );
 		return FALSE;
 	}
-	*ep = NewTurntableEndPt( *trk, angle0 );
+	//Look for empty slot
+	BOOL_T found = FALSE;
+	for (*ep=0; *ep<GetTrkEndPtCnt(*trk); *ep=*ep+1) {
+		if ( (GetTrkEndTrk(*trk,*ep)) == NULL )
+			found = TRUE;
+			break;
+	}
+	if (!found)
+		*ep = NewTurntableEndPt(*trk,angle0);
+	else {
+		struct extraData *xx = GetTrkExtraData(*trk);
+		coOrd pos1;
+		PointOnCircle( &pos1, xx->pos, xx->radius, angle0 );
+		SetTrkEndPoint(*trk, *ep, pos1, angle0);   //Reuse
+	}
 	if ((d-r) > connectDistance) {
 		trk1 = NewStraightTrack( GetTrkEndPos(*trk,*ep), pos );
 		CopyAttributes( *trk, trk1 );
@@ -650,7 +693,12 @@ static BOOL_T QueryTurntable( track_p trk, int query )
 	case Q_ISTRACK:
 	case Q_NOT_PLACE_FROGPOINTS:
 	case Q_MODIFY_REDRAW_DONT_UNDRAW_TRACK:
+	case Q_CAN_ADD_ENDPOINTS:	
+	case Q_CAN_EXTEND:
 		return TRUE;
+	case Q_MODIFY_CAN_SPLIT:
+	case Q_CORNU_CAN_MODIFY:
+		return FALSE;
 	default:
 		return FALSE;
 	}
-- 
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