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_RTTIEXT(ISession_Direction,AIS_InteractiveObject)
  17
  18 //////////////////////////////////////////////////////////////////////
  19 // Construction/Destruction
  20 //////////////////////////////////////////////////////////////////////
  21
  22 ISession_Direction::ISession_Direction()
  23 {
  24
  25 }
  26
  27 ISession_Direction::ISession_Direction (const gp_Pnt& aPnt,
  28                                         const gp_Dir& aDir,
  29                                         Standard_Real aLength,
  30                                         Standard_Real anArrowLength)
  31 : myPnt (aPnt),
  32   myDir (aDir),
  33   myLength (aLength),
  34   myArrowLength (anArrowLength)
  35 {}
  36
  37 ISession_Direction::ISession_Direction (const gp_Pnt& aPnt,
  38                                         const gp_Vec& aVec,
  39                                         Standard_Real anArrowLength)
  40 : myPnt (aPnt),
  41   myDir (aVec),
  42   myArrowLength (anArrowLength)
  43 {
  44   myLength = aVec.Magnitude();
  45 }
  46
  47 ISession_Direction::ISession_Direction (const gp_Pnt2d& aPnt2d,
  48                                         const gp_Dir2d& aDir2d,
  49                                         Standard_Real aLength)
  50 : myPnt (gp_Pnt(aPnt2d.X(),aPnt2d.Y(),0.0)),
  51   myDir (gp_Dir(aDir2d.X(),aDir2d.Y(),0.0)),
  52   myLength (aLength)
  53 {
  54   myArrowLength = myDrawer->ArrowAspect()->Length();
  55 }
  56
  57 ISession_Direction::ISession_Direction (const gp_Pnt2d& aPnt2d,
  58                                         const gp_Vec2d& aVec2d)
  59 : myPnt (gp_Pnt (aPnt2d.X(), aPnt2d.Y(), 0.0)),
  60   myDir (gp_Dir(aVec2d.X(), aVec2d.Y(), 0.0))
  61 {
  62   myLength = aVec2d.Magnitude();
  63   myArrowLength = myDrawer->ArrowAspect()->Length();
  64 }
  65
  66
  67 ISession_Direction::~ISession_Direction()
  68 {
  69
  70 }
  71
  72 void ISession_Direction::Compute (const Handle(PrsMgr_PresentationManager3d)& /*aPresentationManager*/,
  73                                   const Handle(Prs3d_Presentation)& aPresentation,
  74                                   const Standard_Integer /*aMode*/)
  75 {
  76   // Set style for arrow
  77   Handle(Prs3d_ArrowAspect) anArrowAspect = myDrawer->ArrowAspect();
  78   anArrowAspect->SetLength (myArrowLength);
  79
  80   gp_Pnt aLastPoint = myPnt;
  81   aLastPoint.Translate (myLength*gp_Vec(myDir));
  82
  83   // Draw Line
  84   Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments (2);
  85   aPrims->AddVertex (myPnt);
  86   aPrims->AddVertex (aLastPoint);
  87   aPresentation->CurrentGroup()->SetPrimitivesAspect (myDrawer->LineAspect()->Aspect());
  88   aPresentation->CurrentGroup()->AddPrimitiveArray (aPrims);
  89   // Draw arrow
  90   Prs3d_Arrow::Draw (aPresentation->CurrentGroup(),
  91                      aLastPoint,
  92                      myDir,
  93                      anArrowAspect->Angle(),
  94                      anArrowAspect->Length());
  95
  96   // Draw text
  97   if (myText.Length() != 0)
  98   {
  99     gp_Pnt aTextPosition = aLastPoint;
 100     Prs3d_Text::Draw (aPresentation->CurrentGroup(),
 101                       myDrawer->TextAspect(),
 102                       myText,
 103                       aTextPosition);
 104   }
 105 }
 106
 107 void ISession_Direction::ComputeSelection (const Handle(SelectMgr_Selection)& /*aSelection*/,
 108                                            const Standard_Integer /*aMode*/)
 109 {
 110 }
 111
 112 void ISession_Direction::SetText (TCollection_ExtendedString & theText)
 113 {
 114   myText = theText;
 115 }
 116
 117 void ISession_Direction::SetText (Standard_CString theText)
 118 {
 119   myText = theText;
 120 }
 121
 122 void ISession_Direction::SetLineAspect (const Handle(Prs3d_LineAspect)& theAspect)
 123 {
 124   myDrawer->SetLineAspect (theAspect);
 125 }