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#1119 Confirmation box for deleting parts
[modules/shaper.git] / src / SketcherPrs / SketcherPrs_Radius.cpp
index c08d7ab9430db8523b308bc025595686ec6a360f..62a50a46fd8366dde654873fe94a117953890dc9 100644 (file)
 #include <SketchPlugin_Circle.h>
 #include <SketchPlugin_Arc.h>
 
+#include <Events_Error.h>
+
 #include <GeomDataAPI_Point2D.h>
 #include <GeomAPI_Pnt2d.h>
 #include <GeomAPI_Circ.h>
 #include <GeomAPI_XYZ.h>
 #include <ModelAPI_AttributeDouble.h>
 
+#include <gp_Circ.hxx>
+
 static const gp_Circ MyDefCirc(gp_Ax2(gp_Pnt(0,0,0), gp_Dir(0,0,1)), 1);
 
 IMPLEMENT_STANDARD_HANDLE(SketcherPrs_Radius, AIS_RadiusDimension);
@@ -27,6 +31,7 @@ SketcherPrs_Radius::SketcherPrs_Radius(ModelAPI_Feature* theConstraint,
                                        const std::shared_ptr<GeomAPI_Ax3>& thePlane)
 : AIS_RadiusDimension(MyDefCirc), myConstraint(theConstraint), myPlane(thePlane)
 {
+  // Set default values of the presentation
   myAspect = new Prs3d_DimensionAspect();
   myAspect->MakeArrows3d(false);
   myAspect->MakeText3d(false);
@@ -39,27 +44,86 @@ SketcherPrs_Radius::SketcherPrs_Radius(ModelAPI_Feature* theConstraint,
   SetSelToleranceForText2d(SketcherPrs_Tools::getDefaultTextHeight());
 }
 
+bool SketcherPrs_Radius::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
+                                          const std::shared_ptr<GeomAPI_Ax3>& thePlane)
+{
+  bool aReadyToDisplay = false;
+
+  DataPtr aData = theConstraint->data();
+
+  // Flyout point
+  std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr = 
+    std::dynamic_pointer_cast<GeomDataAPI_Point2D>
+    (aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
+  if (!aFlyoutAttr->isInitialized()) {
+    return aReadyToDisplay; // can not create a good presentation
+  }
+
+  // Get circle
+  std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = 
+    std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
+    (aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
+  if (!anAttr)
+    return aReadyToDisplay;
+
+  std::shared_ptr<ModelAPI_Feature> aCyrcFeature = ModelAPI_Feature::feature(anAttr->object());
+  double aRadius = 1;
+  std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr;
+  // it is possible that circle result becomes zero, in this case the presentation should disappear
+  // for example, it happens when circle radius is set to zero
+  if (!aCyrcFeature)
+    return aReadyToDisplay;
+  if (aCyrcFeature->getKind() == SketchPlugin_Circle::ID()) { // circle
+    aCenterAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
+        aCyrcFeature->data()->attribute(SketchPlugin_Circle::CENTER_ID()));
+    AttributeDoublePtr aCircRadius = 
+      std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
+      aCyrcFeature->data()->attribute(SketchPlugin_Circle::RADIUS_ID()));
+    aRadius = aCircRadius->value();
+  } else { // arc
+    aCenterAttr = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
+        aCyrcFeature->data()->attribute(SketchPlugin_Arc::CENTER_ID()));
+    std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = 
+      std::dynamic_pointer_cast<GeomDataAPI_Point2D>
+      (aCyrcFeature->data()->attribute(SketchPlugin_Arc::START_ID()));
+    aRadius = aCenterAttr->pnt()->distance(aStartAttr->pnt());
+  }
+  std::shared_ptr<GeomAPI_Pnt> aCenter = thePlane->to3D(aCenterAttr->x(), aCenterAttr->y());
+  std::shared_ptr<GeomAPI_Dir> aNormal = thePlane->normal();
+
+  GeomAPI_Circ aCircle(aCenter, aNormal, aRadius);
+    
+  std::shared_ptr<GeomAPI_Pnt> anAnchor = SketcherPrs_Tools::getAnchorPoint(theConstraint, thePlane);
+
+  gp_Circ aCirc = aCircle.impl<gp_Circ>();
+  gp_Pnt anAncorPnt = anAnchor->impl<gp_Pnt>();
+  // anchor point should not coincide to the location point of the circle
+  // OCCT does not process this case.
+
+  aReadyToDisplay = anAncorPnt.Distance(aCirc.Location()) > 1e-7;
+  return aReadyToDisplay;
+}
 
 void SketcherPrs_Radius::Compute(const Handle(PrsMgr_PresentationManager3d)& thePresentationManager,
                                  const Handle(Prs3d_Presentation)& thePresentation, 
                                  const Standard_Integer theMode)
 {
+  if (!IsReadyToDisplay(myConstraint, myPlane)) {
+    Events_Error::throwException("An empty AIS presentation: SketcherPrs_Radius");
+    return;
+  }
+
   DataPtr aData = myConstraint->data();
 
   // Flyout point
   std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr = 
     std::dynamic_pointer_cast<GeomDataAPI_Point2D>
     (aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
-  if (!aFlyoutAttr->isInitialized())
-    return; // can not create a good presentation
-
-  std::shared_ptr<GeomAPI_Pnt> aFlyoutPnt = myPlane->to3D(aFlyoutAttr->x(), aFlyoutAttr->y());
 
   // Get circle
   std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = 
     std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
     (aData->attribute(SketchPlugin_Constraint::ENTITY_A()));
-  if (!anAttr) return;
 
   std::shared_ptr<ModelAPI_Feature> aCyrcFeature = ModelAPI_Feature::feature(anAttr->object());
   double aRadius = 1;
@@ -80,29 +144,49 @@ void SketcherPrs_Radius::Compute(const Handle(PrsMgr_PresentationManager3d)& the
     aRadius = aCenterAttr->pnt()->distance(aStartAttr->pnt());
   }
   std::shared_ptr<GeomAPI_Pnt> aCenter = myPlane->to3D(aCenterAttr->x(), aCenterAttr->y());
-  std::shared_ptr<GeomAPI_Dir> aNormal = myPlane->norm();
+  std::shared_ptr<GeomAPI_Dir> aNormal = myPlane->normal();
 
   GeomAPI_Circ aCircle(aCenter, aNormal, aRadius);
     
   std::shared_ptr<GeomAPI_Pnt> anAnchor = SketcherPrs_Tools::getAnchorPoint(myConstraint, myPlane);
-  //std::shared_ptr<GeomAPI_Pnt> anAnchor = aCircle.project(aFlyoutPnt);
-  //std::shared_ptr<GeomAPI_XYZ> anAnchorXYZ = anAnchor->xyz();
-  //anAnchorXYZ = anAnchorXYZ->decreased(aCenter->xyz());
-  //std::shared_ptr<GeomAPI_Dir> aDeltaDir(new GeomAPI_Dir(anAnchorXYZ));
-  //const double aDelta = 1e-3;
-  //anAnchor->setX(anAnchor->x() + aDelta * aDeltaDir->x());
-  //anAnchor->setY(anAnchor->y() + aDelta * aDeltaDir->y());
-  //anAnchor->setZ(anAnchor->z() + aDelta * aDeltaDir->z());
-
-  SetMeasuredGeometry(aCircle.impl<gp_Circ>(), anAnchor->impl<gp_Pnt>());
+
+  gp_Circ aCirc = aCircle.impl<gp_Circ>();
+  gp_Pnt anAncorPnt = anAnchor->impl<gp_Pnt>();
+
+  SetMeasuredGeometry(aCirc, anAncorPnt);
   SetCustomValue(aRadius);
 
+  // Update variable aspect parameters (depending on viewer scale)
+  double anArrowLength = myAspect->ArrowAspect()->Length();
+   // This is not realy correct way to get viewer scale.
+  double aViewerScale = (double) SketcherPrs_Tools::getDefaultArrowSize() / anArrowLength;
+  double aDimensionValue = GetValue();
+  double aTextSize = 0.0;
+  GetValueString(aTextSize);
+
+  if(aTextSize > ((aDimensionValue - 2 * SketcherPrs_Tools::getArrowSize()) * aViewerScale)) {
+    myAspect->SetTextHorizontalPosition(Prs3d_DTHP_Left);
+    myAspect->SetArrowOrientation(Prs3d_DAO_External);
+    myAspect->SetExtensionSize(aTextSize / aViewerScale - SketcherPrs_Tools::getArrowSize() / 2.0);
+  } else {
+    myAspect->SetTextHorizontalPosition(Prs3d_DTHP_Center);
+    myAspect->SetArrowOrientation(Prs3d_DAO_Internal);
+  }
+  myAspect->SetArrowTailSize(myAspect->ArrowAspect()->Length());
+
+  // The value of vertical aligment is sometimes changed
+  myAspect->TextAspect()->SetVerticalJustification(Graphic3d_VTA_CENTER);
+
+  AttributeDoublePtr aValue = myConstraint->data()->real(SketchPlugin_Constraint::VALUE());
+  SketcherPrs_Tools::setDisplaySpecialSymbol(this, aValue->usedParameters().size() > 0);
+
   AIS_RadiusDimension::Compute(thePresentationManager, thePresentation, theMode);
 }
 
 void SketcherPrs_Radius::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection,
                                                    const Standard_Integer theMode)
 {
+  // Map the application selection modes to standard ones
   Standard_Integer aMode;
   switch (theMode) {
   case 0: // we should use selection of all objects