From 76993592abaf7be4243bccf45851ca309846ffe4 Mon Sep 17 00:00:00 2001
From: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Fri, 15 Jun 2018 16:16:48 +0200
Subject: [PATCH] Sketcher: Diameter support for Sketch Object

---
 src/Mod/Sketcher/App/SketchObject.cpp | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/src/Mod/Sketcher/App/SketchObject.cpp b/src/Mod/Sketcher/App/SketchObject.cpp
index 4e67532e66..8c564d240c 100644
--- a/src/Mod/Sketcher/App/SketchObject.cpp
+++ b/src/Mod/Sketcher/App/SketchObject.cpp
@@ -290,13 +290,14 @@ int SketchObject::setDatum(int ConstrId, double Datum)
         type != DistanceX &&
         type != DistanceY &&
         type != Radius &&
+        type != Diameter &&
         type != Angle &&
         type != Tangent && //for tangent, value==0 is autodecide, value==Pi/2 is external and value==-Pi/2 is internal
         type != Perpendicular &&
         type != SnellsLaw)
         return -1;
 
-    if ((type == Distance || type == Radius) && Datum <= 0)
+    if ((type == Distance || type == Radius || type == Diameter) && Datum <= 0)
         return (Datum == 0) ? -5 : -4;
 
     // copy the list
@@ -328,6 +329,7 @@ int SketchObject::setDriving(int ConstrId, bool isdriving)
         type != DistanceX &&
         type != DistanceY &&
         type != Radius &&
+        type != Diameter &&
         type != Angle &&
         type != SnellsLaw)
         return -2;
@@ -365,6 +367,7 @@ int SketchObject::getDriving(int ConstrId, bool &isdriving)
         type != DistanceX &&
         type != DistanceY &&
         type != Radius &&
+        type != Diameter &&
         type != Angle &&
         type != SnellsLaw)
         return -1;
@@ -386,6 +389,7 @@ int SketchObject::toggleDriving(int ConstrId)
         type != DistanceX &&
         type != DistanceY &&
         type != Radius &&
+        type != Diameter &&
         type != Angle &&
         type != SnellsLaw)
         return -2;
@@ -921,7 +925,8 @@ int SketchObject::addCopyOfConstraints(const SketchObject &orig)
             newVals[i]->Type == Sketcher::Distance ||
             newVals[i]->Type == Sketcher::DistanceX ||
             newVals[i]->Type == Sketcher::DistanceY ||
-            newVals[i]->Type == Sketcher::Radius || 
+            newVals[i]->Type == Sketcher::Radius ||
+            newVals[i]->Type == Sketcher::Diameter ||
             newVals[i]->Type == Sketcher::Angle ||
             newVals[i]->Type == Sketcher::SnellsLaw)) {
 
@@ -2811,6 +2816,7 @@ int SketchObject::addSymmetric(const std::vector<int> &geoIdList, int refGeoId,
                         (*it)->Type ==  Sketcher::Distance ||
                         (*it)->Type ==  Sketcher::Equal ||
                         (*it)->Type ==  Sketcher::Radius ||
+                        (*it)->Type ==  Sketcher::Diameter ||
                         (*it)->Type ==  Sketcher::Angle ||
                         (*it)->Type ==  Sketcher::PointOnObject ){
                             Constraint *constNew = (*it)->copy();
@@ -3070,6 +3076,7 @@ int SketchObject::addCopy(const std::vector<int> &geoIdList, const Base::Vector3
                                     if (((*it)->Type == Sketcher::DistanceX || 
                                         (*it)->Type == Sketcher::DistanceY ||
                                         (*it)->Type == Sketcher::Distance  ||
+                                        (*it)->Type == Sketcher::Diameter ||
                                         (*it)->Type == Sketcher::Radius ) && clone ) {
                                         // Distances on a single Element are mapped to equality constraints in clone mode
                                         Constraint *constNew = (*it)->copy();
@@ -3760,6 +3767,9 @@ int SketchObject::exposeInternalGeometry(int GeoId)
                 if((*it)->Type == Sketcher::Radius && (*it)->First == controlpointgeoids[0]) {
                     isfirstweightconstrained = true ;
                 }
+                else if((*it)->Type == Sketcher::Diameter && (*it)->First == controlpointgeoids[0]) {
+                        isfirstweightconstrained = true ;
+                }
             }
         }
 
@@ -4141,8 +4151,8 @@ int SketchObject::deleteUnusedInternalGeometry(int GeoId, bool delgeoid)
                         }
 
                     }
-                        // ignore radiuses
-                    else if ((*itc)->Type!=Sketcher::Radius && ( (*itc)->Second == (*it) || (*itc)->First == (*it) || (*itc)->Third == (*it)) )
+                        // ignore radiuses and diameters
+                        else if (((*itc)->Type!=Sketcher::Radius && (*itc)->Type!=Sketcher::Diameter) && ( (*itc)->Second == (*it) || (*itc)->First == (*it) || (*itc)->Third == (*it)) )
                         (*ita)++;
 
                  }
@@ -4586,7 +4596,8 @@ int SketchObject::carbonCopy(App::DocumentObject * pObj, bool construction)
     for (std::vector< Sketcher::Constraint * >::const_iterator it= scvals.begin(); it != scvals.end(); ++it,nextcid++,sourceid++) {
 
         if ((*it)->Type == Sketcher::Distance ||
-            (*it)->Type == Sketcher::Radius || 
+            (*it)->Type == Sketcher::Radius ||
+            (*it)->Type == Sketcher::Diameter ||
             (*it)->Type == Sketcher::Angle ||
             (*it)->Type == Sketcher::SnellsLaw) {
             // then we link its value to the parent 
@@ -5676,6 +5687,9 @@ bool SketchObject::evaluateConstraint(const Constraint *constraint) const
         case Radius:
             requireFirst = true;
             break;
+        case Diameter:
+            requireFirst = true;
+            break;            
         case Horizontal:
         case Vertical:
             requireFirst = true;