--- /dev/null
+// Copyright (C) 2014-2021 CEA/DEN, EDF R&D
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+#ifndef SketchPlugin_OverConstraintsResolver_H_
+#define SketchPlugin_OverConstraintsResolver_H_
+
+#include "SketchPlugin.h"
+
+#include <Events_Listener.h>
+
+#include <ModelAPI_Object.h>
+
+#include <set>
+
+class SketchPlugin_OverConstraintsResolver : public Events_Listener
+{
+public:
+ SketchPlugin_OverConstraintsResolver();
+
+ /// Redefinition of Events_Listener method
+ void processEvent(const std::shared_ptr<Events_Message>& theMessage);
+
+ virtual bool groupMessages() { return true; }
+
+protected:
+ /// Perform algorithm
+ bool perform();
+
+ /// Set set of constraints to check
+ void setConstraints(const std::set<ObjectPtr>& theConstraints);
+
+ /// Check arcs in sketch about tangential conflict
+ bool checkArcsAboutTangentialConflict();
+
+ /// Check lines in sketch about horizontal or vertical conflict
+ bool checkHorizontalOrVerticalConflict();
+
+private:
+ std::set<ObjectPtr> myConstraints;
+ std::set<ObjectPtr> myConstraintsToRemove;
+};
+#endif
