src/SketchPlugin/SketchPlugin_ConstraintLength.cpp

   1 // File:    SketchPlugin_ConstraintLength.cpp
   2 // Created: 30 May 2014
   3 // Author:  Artem ZHIDKOV
   4
   5 #include "SketchPlugin_ConstraintLength.h"
   6 #include <SketchPlugin_Line.h>
   7
   8 #include <ModelAPI_AttributeDouble.h>
   9 #include <ModelAPI_Data.h>
  10
  11 #include <GeomDataAPI_Point2D.h>
  12
  13 #include <AIS_LengthDimension.hxx>
  14 #include <gp_Pnt.hxx>
  15 #include <gp_Pln.hxx>
  16
  17 SketchPlugin_ConstraintLength::SketchPlugin_ConstraintLength()
  18 {
  19 }
  20
  21 void SketchPlugin_ConstraintLength::initAttributes()
  22 {
  23   data()->addAttribute(CONSTRAINT_ATTR_VALUE,    ModelAPI_AttributeDouble::type());
  24   data()->addAttribute(CONSTRAINT_ATTR_FLYOUT_VALUE, ModelAPI_AttributeDouble::type());
  25   data()->addAttribute(CONSTRAINT_ATTR_ENTITY_A, ModelAPI_AttributeRefAttr::type());
  26 }
  27
  28 void SketchPlugin_ConstraintLength::execute()
  29 {
  30 }
  31
  32 Handle(AIS_InteractiveObject) SketchPlugin_ConstraintLength::getAISShape(
  33   Handle_AIS_InteractiveObject thePrevious)
  34 {
  35   if (!sketch())
  36     return thePrevious;
  37
  38   boost::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
  39
  40   boost::shared_ptr<ModelAPI_AttributeRefAttr> anAttr =
  41     boost::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(data()->attribute(CONSTRAINT_ATTR_ENTITY_A));
  42   if (!anAttr)
  43     return thePrevious;
  44   FeaturePtr aFeature = anAttr->feature();
  45   if (!aFeature || aFeature->getKind() != SKETCH_LINE_KIND)
  46     return thePrevious;
  47
  48   boost::shared_ptr<ModelAPI_AttributeDouble> aFlyoutAttr =
  49     boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(CONSTRAINT_ATTR_FLYOUT_VALUE));
  50   double aFlyout = aFlyoutAttr->value();
  51
  52   boost::shared_ptr<ModelAPI_AttributeDouble> aValueAttr =
  53     boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(data()->attribute(CONSTRAINT_ATTR_VALUE));
  54   double aValue = aValueAttr->value();
  55
  56   boost::shared_ptr<ModelAPI_Data> aData = aFeature->data();
  57   if (!aData->isValid())
  58     return thePrevious;
  59
  60   boost::shared_ptr<GeomDataAPI_Point2D> aPointStart =
  61         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(LINE_ATTR_START));
  62   boost::shared_ptr<GeomDataAPI_Point2D> aPointEnd =
  63         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(LINE_ATTR_END));
  64
  65   //Build dimension here
  66   boost::shared_ptr<GeomAPI_Pnt> aPoint1 = sketch()->to3D(aPointStart->x(), aPointStart->y());
  67   boost::shared_ptr<GeomAPI_Pnt> aPoint2 = sketch()->to3D(aPointEnd->x(),   aPointEnd->y());
  68   if (aFlyout < 0)
  69     aPoint1.swap(aPoint2);
  70
  71   Handle(AIS_InteractiveObject) anAIS = thePrevious;
  72   if (anAIS.IsNull())
  73   {
  74     Handle(AIS_LengthDimension) aDimAIS =
  75       new AIS_LengthDimension(aPoint1->impl<gp_Pnt>(), aPoint2->impl<gp_Pnt>(), aPlane->impl<gp_Pln>());
  76     aDimAIS->SetCustomValue(aValue);
  77
  78     Handle(Prs3d_DimensionAspect) anAspect = new Prs3d_DimensionAspect();
  79     anAspect->MakeArrows3d (Standard_False);
  80     anAspect->MakeText3d(false/*is text 3d*/);
  81     anAspect->TextAspect()->SetHeight(CONSTRAINT_TEXT_HEIGHT);
  82     anAspect->MakeTextShaded(false/*is test shaded*/);
  83     aDimAIS->DimensionAspect()->MakeUnitsDisplayed(false/*is units displayed*/);
  84     /*if (isUnitsDisplayed)
  85     {
  86       aDimAIS->SetDisplayUnits (aDimDlg->GetUnits ());
  87     }*/
  88     aDimAIS->SetDimensionAspect (anAspect);
  89     aDimAIS->SetFlyout(aFlyout);
  90     aDimAIS->SetSelToleranceForText2d(CONSTRAINT_TEXT_SELECTION_TOLERANCE);
  91
  92     anAIS = aDimAIS;
  93   }
  94   else
  95   {
  96     // update presentation
  97     Handle(AIS_LengthDimension) aDimAIS = Handle(AIS_LengthDimension)::DownCast(anAIS);
  98     if (!aDimAIS.IsNull())
  99     {
 100       aDimAIS->SetMeasuredGeometry(aPoint1->impl<gp_Pnt>(), aPoint2->impl<gp_Pnt>(), aPlane->impl<gp_Pln>());
 101       aDimAIS->SetCustomValue(aValue);
 102       aDimAIS->SetFlyout(aFlyout);
 103
 104       aDimAIS->Redisplay(Standard_True);
 105     }
 106   }
 107   return anAIS;
 108 }
 109