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// File Visual3d_PickDescriptor.cxx
// Created Fevrier 1992
// Author NW,JPB,CAL
//-Copyright MatraDatavision 1991,1992
//-Version
//-Design Declaration of variables specific to the class
// describing marking.
//-Warning A return of marking is defined by :
// - sequence of (Elem_Num, Pick_Id, Structure)
// - depth
//-References
//-Language C++ 2.0
//-Declarations
// for the class
#include <Visual3d_PickDescriptor.ixx>
//-Aliases
//-Global data definitions
// -- sequence reperee
// MyPickPathSequence : HSequenceOfPickPath;
// -- contexte picking de reperage associe
// MyContext : ContextPick;
//-Constructors
//-Destructors
//-Methods, in order
Visual3d_PickDescriptor::Visual3d_PickDescriptor (const Visual3d_ContextPick& CTXP):
MyContext (CTXP) {
MyPickPathSequence = new Visual3d_HSequenceOfPickPath ();
}
void Visual3d_PickDescriptor::AddPickPath (const Visual3d_PickPath& APickPath) {
if (MyContext.Depth () > MyPickPathSequence->Length ())
MyPickPathSequence->Append (APickPath);
}
void Visual3d_PickDescriptor::Clear () {
MyPickPathSequence->Clear ();
}
Standard_Integer Visual3d_PickDescriptor::Depth () const {
return (MyPickPathSequence->Length ());
}
Handle(Graphic3d_Structure) Visual3d_PickDescriptor::TopStructure () const {
Visual3d_PickPath Result;
if (MyPickPathSequence->IsEmpty ())
Visual3d_PickError::Raise ("PickDescriptor empty");
switch (MyContext.Order ()) {
case Visual3d_TOO_TOPFIRST :
// MyPickPathSequence->First returns the first
// PickPath found in the sequence.
Result = MyPickPathSequence->Sequence().First ();
break;
case Visual3d_TOO_BOTTOMFIRST :
// MyPickPathSequence->Last returns the last
// PickPath found in the sequence.
Result = MyPickPathSequence->Sequence().Last ();
break;
}
return (Result.StructIdentifier ());
}
Standard_Integer Visual3d_PickDescriptor::TopPickId () const {
Visual3d_PickPath Result;
if (MyPickPathSequence->IsEmpty ())
Visual3d_PickError::Raise ("PickDescriptor empty");
switch (MyContext.Order ()) {
case Visual3d_TOO_TOPFIRST :
// MyPickPathSequence->First returns the first
// PickPath found in the sequence.
Result = MyPickPathSequence->Sequence().First ();
break;
case Visual3d_TOO_BOTTOMFIRST :
// MyPickPathSequence->Last returns the last
// PickPath found in the sequence.
Result = MyPickPathSequence->Sequence().Last ();
break;
}
return (Result.PickIdentifier ());
}
Standard_Integer Visual3d_PickDescriptor::TopElementNumber () const {
Visual3d_PickPath Result;
if (MyPickPathSequence->IsEmpty ())
Visual3d_PickError::Raise ("PickDescriptor empty");
switch (MyContext.Order ()) {
case Visual3d_TOO_TOPFIRST :
// MyPickPathSequence->First returns the first
// PickPath found in the sequence.
Result = MyPickPathSequence->Sequence().First ();
break;
case Visual3d_TOO_BOTTOMFIRST :
// MyPickPathSequence->Last returns the last
// PickPath found in the sequence.
Result = MyPickPathSequence->Sequence().Last ();
break;
}
return (Result.ElementNumber ());
}
Handle(Visual3d_HSequenceOfPickPath) Visual3d_PickDescriptor::PickPath () const {
return (Handle(Visual3d_HSequenceOfPickPath)::DownCast
(MyPickPathSequence->ShallowCopy ()));
}
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