+ SketchPlugin_ConstraintRigid.cpp
+ SketchPlugin_ConstraintHorizontal.cpp
+ SketchPlugin_ConstraintVertical.cpp
+ SketchPlugin_ConstraintEqual.cpp
+ SketchPlugin_ConstraintTangent.cpp
+ SketchPlugin_ConstraintMirror.cpp
+ SketchPlugin_ConstraintFillet.cpp
+ SketchPlugin_ShapeValidator.cpp
+ SketchPlugin_Validators.cpp
+ SketchPlugin_ResultValidators.cpp