Move generation of AIS presentation into SketchPlugin

[modules/shaper.git] / src / SketchPlugin / SketchPlugin_ConstraintDistance.cpp

diff --git a/src/SketchPlugin/SketchPlugin_ConstraintDistance.cpp b/src/SketchPlugin/SketchPlugin_ConstraintDistance.cpp
index afb764a5dcfcc3654075ebf5847136f9b77e1a2c..b6ddb808aa950a4fa3b3a4d95fff1f15d2aad57f 100644 (file)
--- a/src/SketchPlugin/SketchPlugin_ConstraintDistance.cpp
+++ b/src/SketchPlugin/SketchPlugin_ConstraintDistance.cpp
@@ -3,12 +3,24 @@
 // Author:  Artem ZHIDKOV
 
 #include "SketchPlugin_ConstraintDistance.h"
+#include <SketchPlugin_Point.h>
 
-#include "GeomDataAPI_Point2D.h"
+#include <GeomAPI_Lin2D.h>
+#include <GeomAPI_Pnt2D.h>
+#include <GeomDataAPI_Point2D.h>
 
 #include <ModelAPI_AttributeDouble.h>
 #include <ModelAPI_Data.h>
-#include <SketchPlugin_Point.h>
+
+#include <AIS_LengthDimension.hxx>
+#include <gp_Pnt.hxx>
+#include <gp_Pln.hxx>
+
+/// Obtain the point object from specified constraint parameter
+static boost::shared_ptr<GeomDataAPI_Point2D> getFeaturePoint(
+            DataPtr             theData,
+            const std::string&  theAttribute);
+
 
 SketchPlugin_ConstraintDistance::SketchPlugin_ConstraintDistance()
 {
@@ -26,9 +38,100 @@ void SketchPlugin_ConstraintDistance::execute()
 {
 }
 
-const boost::shared_ptr<GeomAPI_Shape>&  SketchPlugin_ConstraintDistance::preview()
+Handle(AIS_InteractiveObject) SketchPlugin_ConstraintDistance::getAISShape(
+  Handle_AIS_InteractiveObject thePrevious)
 {
-  /// \todo Preview for distance constraint
-  return getPreview();
+  if (!sketch())
+    return thePrevious;
+
+  boost::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
+
+  DataPtr aData = data();
+  boost::shared_ptr<GeomDataAPI_Point2D> aPoint_A = getFeaturePoint(aData, CONSTRAINT_ATTR_ENTITY_A);
+  boost::shared_ptr<GeomDataAPI_Point2D> aPoint_B = getFeaturePoint(aData, CONSTRAINT_ATTR_ENTITY_B);
+  if (!aPoint_A || !aPoint_B)
+    return thePrevious;
+
+  // fly out calculation
+  boost::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr = 
+    boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(CONSTRAINT_ATTR_FLYOUT_VALUE_PNT));
+  boost::shared_ptr<GeomAPI_Pnt2d> aFlyOutPnt = aFlyOutAttr->pnt();
+
+  boost::shared_ptr<GeomAPI_Lin2d> aFeatureLin = 
+    boost::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aPoint_A->x(), aPoint_A->y(),
+                                                       aPoint_B->x(), aPoint_B->y()));
+  boost::shared_ptr<GeomAPI_Pnt2d> aResult = aFeatureLin->project(aFlyOutPnt);
+  double aDistance = aFlyOutPnt->distance(aResult);
+
+  if (!aFeatureLin->isRight(aFlyOutPnt))
+    aDistance = -aDistance;
+  double aFlyout = aDistance;
+
+  //Build dimension here
+  boost::shared_ptr<GeomAPI_Pnt> aPoint1 = sketch()->to3D(aPoint_A->x(), aPoint_A->y());
+  boost::shared_ptr<GeomAPI_Pnt> aPoint2 = sketch()->to3D(aPoint_B->x(), aPoint_B->y());
+  if (aFlyout < 0)
+    aPoint1.swap(aPoint2);
+
+  // value calculation
+  boost::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = 
+    boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(aData->attribute(CONSTRAINT_ATTR_VALUE));
+  double aValue = aValueAttr->value();
+  if (aValue == 0) { // TODO! the default value
+    aValue = aPoint1->distance(aPoint2);
+  }
+
+  Handle(AIS_InteractiveObject) anAIS = thePrevious;
+  if (anAIS.IsNull())
+  {
+    Handle(AIS_LengthDimension) aDimAIS = 
+      new AIS_LengthDimension(aPoint1->impl<gp_Pnt>(), aPoint2->impl<gp_Pnt>(), aPlane->impl<gp_Pln>());
+    aDimAIS->SetCustomValue(aValue);
+
+    Handle(Prs3d_DimensionAspect) anAspect = new Prs3d_DimensionAspect();
+    anAspect->MakeArrows3d (Standard_False);
+    anAspect->MakeText3d(false);
+    anAspect->TextAspect()->SetHeight(CONSTRAINT_TEXT_HEIGHT);
+    anAspect->MakeTextShaded(false);
+    aDimAIS->DimensionAspect()->MakeUnitsDisplayed(false);
+    aDimAIS->SetDimensionAspect (anAspect);
+    aDimAIS->SetFlyout(aFlyout);
+    aDimAIS->SetSelToleranceForText2d(CONSTRAINT_TEXT_SELECTION_TOLERANCE);
+
+    anAIS = aDimAIS;
+  }
+  else {
+    // update presentation
+    Handle(AIS_LengthDimension) aDimAIS = Handle(AIS_LengthDimension)::DownCast(anAIS);
+    if (!aDimAIS.IsNull()) {
+      aDimAIS->SetMeasuredGeometry(aPoint1->impl<gp_Pnt>(), aPoint2->impl<gp_Pnt>(), aPlane->impl<gp_Pln>());
+      aDimAIS->SetCustomValue(aValue);
+      aDimAIS->SetFlyout(aFlyout);
+
+      aDimAIS->Redisplay(Standard_True);
+    }
+  }
+  return anAIS;
+}
+
+
+boost::shared_ptr<GeomDataAPI_Point2D> getFeaturePoint(DataPtr theData,
+                                                       const std::string& theAttribute)
+{
+  boost::shared_ptr<GeomDataAPI_Point2D> aPointAttr;
+
+  if (!theData)
+    return aPointAttr;
+
+  FeaturePtr aFeature;
+  boost::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = 
+    boost::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theData->attribute(theAttribute));
+  if (anAttr)
+    aFeature = anAttr->feature();
+
+  if (aFeature && aFeature->getKind() == SKETCH_POINT_KIND)
+    aPointAttr = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>
+                                           (aFeature->data()->attribute(POINT_ATTR_COORD));
+  return aPointAttr;
 }