samples/mfc/standard/01_Geometry/src/ISession2D/ISession_Direction.cpp

   1 // ISession_Direction.cpp: implementation of the ISession_Direction class.
   2 //
   3 //////////////////////////////////////////////////////////////////////
   4
   5 #include "stdafx.h"
   6 #include "..\\GeometryApp.h"
   7 #include "ISession_Direction.h"
   8 #include <Prs3d_ArrowAspect.hxx>
   9 #include <DsgPrs_LengthPresentation.hxx>
  10
  11 #ifdef _DEBUG
  12 #undef THIS_FILE
  13 static char THIS_FILE[]=__FILE__;
  14 #endif
  15
  16 IMPLEMENT_STANDARD_HANDLE(ISession_Direction,AIS_InteractiveObject)
  17 IMPLEMENT_STANDARD_RTTIEXT(ISession_Direction,AIS_InteractiveObject)
  18
  19 //////////////////////////////////////////////////////////////////////
  20 // Construction/Destruction
  21 //////////////////////////////////////////////////////////////////////
  22
  23 ISession_Direction::ISession_Direction()
  24 {
  25
  26 }
  27
  28 ISession_Direction::ISession_Direction (const gp_Pnt& aPnt,
  29                                         const gp_Dir& aDir,
  30                                         Standard_Real aLength,
  31                                         Standard_Real anArrowLength)
  32 : myPnt (aPnt),
  33   myDir (aDir),
  34   myLength (aLength),
  35   myArrowLength (anArrowLength)
  36 {}
  37
  38 ISession_Direction::ISession_Direction (const gp_Pnt& aPnt,
  39                                         const gp_Vec& aVec,
  40                                         Standard_Real anArrowLength)
  41 : myPnt (aPnt),
  42   myDir (aVec),
  43   myArrowLength (anArrowLength)
  44 {
  45   myLength = aVec.Magnitude();
  46 }
  47
  48 ISession_Direction::ISession_Direction (const gp_Pnt2d& aPnt2d,
  49                                         const gp_Dir2d& aDir2d,
  50                                         Standard_Real aLength)
  51 : myPnt (gp_Pnt(aPnt2d.X(),aPnt2d.Y(),0.0)),
  52   myDir (gp_Dir(aDir2d.X(),aDir2d.Y(),0.0)),
  53   myLength (aLength)
  54 {
  55   myArrowLength = myDrawer->ArrowAspect()->Length();
  56 }
  57
  58 ISession_Direction::ISession_Direction (const gp_Pnt2d& aPnt2d,
  59                                         const gp_Vec2d& aVec2d)
  60 : myPnt (gp_Pnt (aPnt2d.X(), aPnt2d.Y(), 0.0)),
  61   myDir (gp_Dir(aVec2d.X(), aVec2d.Y(), 0.0))
  62 {
  63   myLength = aVec2d.Magnitude();
  64   myArrowLength = myDrawer->ArrowAspect()->Length();
  65 }
  66
  67
  68 ISession_Direction::~ISession_Direction()
  69 {
  70
  71 }
  72
  73 void ISession_Direction::Compute (const Handle(PrsMgr_PresentationManager3d)& /*aPresentationManager*/,
  74                                   const Handle(Prs3d_Presentation)& aPresentation,
  75                                   const Standard_Integer /*aMode*/)
  76 {
  77   // Set style for arrow
  78   Handle(Prs3d_ArrowAspect) anArrowAspect = myDrawer->ArrowAspect();
  79   anArrowAspect->SetLength (myArrowLength);
  80
  81   gp_Pnt aLastPoint = myPnt;
  82   aLastPoint.Translate (myLength*gp_Vec(myDir));
  83
  84   // Draw Line
  85   Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments (2);
  86   aPrims->AddVertex (myPnt);
  87   aPrims->AddVertex (aLastPoint);
  88   Prs3d_Root::CurrentGroup (aPresentation)->SetPrimitivesAspect (myDrawer->LineAspect()->Aspect());
  89   Prs3d_Root::CurrentGroup (aPresentation)->AddPrimitiveArray (aPrims);
  90   // Draw arrow
  91   Prs3d_Arrow::Draw (aPresentation,
  92                      aLastPoint,
  93                      myDir,
  94                      anArrowAspect->Angle(),
  95                      anArrowAspect->Length());
  96
  97   // Draw text
  98   if (myText.Length() != 0)
  99   {
 100     gp_Pnt aTextPosition = aLastPoint;
 101     Prs3d_Text::Draw (aPresentation,
 102                       myDrawer->TextAspect(),
 103                       myText,
 104                       aTextPosition);
 105   }
 106 }
 107
 108
 109 void ISession_Direction::Compute (const Handle(Prs3d_Projector)& /*aProjector*/,
 110                                   const Handle(Prs3d_Presentation)& /*aPresentation*/)
 111 {
 112 }
 113
 114 void ISession_Direction::ComputeSelection (const Handle(SelectMgr_Selection)& /*aSelection*/,
 115                                            const Standard_Integer /*aMode*/)
 116 {
 117 }
 118
 119 void ISession_Direction::SetText (TCollection_ExtendedString & theText)
 120 {
 121   myText = theText;
 122 }
 123
 124 void ISession_Direction::SetText (Standard_CString theText)
 125 {
 126   myText = theText;
 127 }
 128
 129 void ISession_Direction::SetLineAspect (const Handle(Prs3d_LineAspect)& theAspect)
 130 {
 131   myDrawer->SetLineAspect (theAspect);
 132 }