Issue #1834: Fix length of lines

[modules/shaper.git] / src / SketcherPrs / SketcherPrs_LengthDimension.cpp

diff --git a/src/SketcherPrs/SketcherPrs_LengthDimension.cpp b/src/SketcherPrs/SketcherPrs_LengthDimension.cpp
index 24977ecee183754414167f5ef6bf6ea5e1cd766a..267cc476ec17cf6a2ce394ff5e8101aa2916fdea 100644 (file)
--- a/src/SketcherPrs/SketcherPrs_LengthDimension.cpp
+++ b/src/SketcherPrs/SketcherPrs_LengthDimension.cpp
@@ -6,6 +6,7 @@
 
 #include "SketcherPrs_LengthDimension.h"
 #include "SketcherPrs_Tools.h"
+#include "SketcherPrs_DimensionStyleListener.h"
 
 #include <SketchPlugin_Constraint.h>
 #include <SketchPlugin_ConstraintLength.h>
@@ -21,6 +22,9 @@
 #include <GeomAPI_Lin2d.h>
 
 #include <ModelAPI_Data.h>
+#include <ModelAPI_AttributeDouble.h>
+
+#include <AIS_DisplaySpecialSymbol.hxx>
 
 
 static const gp_Pnt MyDefStart(0,0,0);
@@ -30,50 +34,77 @@ static const gp_Pln MyDefPln(gp_Pnt(0,0,0), gp_Dir(0,0,1));
 IMPLEMENT_STANDARD_HANDLE(SketcherPrs_LengthDimension, AIS_LengthDimension);
 IMPLEMENT_STANDARD_RTTIEXT(SketcherPrs_LengthDimension, AIS_LengthDimension);
 
-SketcherPrs_LengthDimension::SketcherPrs_LengthDimension(ModelAPI_Feature* theConstraint, 
-                        const std::shared_ptr<GeomAPI_Ax3>& thePlane)
-: AIS_LengthDimension(MyDefStart, MyDefEnd, MyDefPln), 
-myConstraint(theConstraint), myPlane(thePlane)
+SketcherPrs_LengthDimension::SketcherPrs_LengthDimension(ModelAPI_Feature* theConstraint,
+                                              const std::shared_ptr<GeomAPI_Ax3>& thePlane)
+: AIS_LengthDimension(MyDefStart, MyDefEnd, MyDefPln),
+  myConstraint(theConstraint),
+  mySketcherPlane(thePlane),
+  myFirstPoint(MyDefStart),
+  mySecondPoint(MyDefEnd),
+  myPlane(MyDefPln),
+  myDistance(1),
+  myValue(0., false, "")
 {
-  myAspect = new Prs3d_DimensionAspect();
-  myAspect->MakeArrows3d(false);
-  myAspect->MakeText3d(false);
-  myAspect->MakeTextShaded(false);
-  myAspect->MakeUnitsDisplayed(false);
-  myAspect->TextAspect()->SetHeight(SketcherPrs_Tools::getDefaultTextHeight());
-  myAspect->ArrowAspect()->SetLength(SketcherPrs_Tools::getArrowSize());
+  SetDimensionAspect(SketcherPrs_Tools::createDimensionAspect());
+  myStyleListener = new SketcherPrs_DimensionStyleListener();
+}
 
-  SetSelToleranceForText2d(SketcherPrs_Tools::getTextHeight());
-  SetDimensionAspect(myAspect);
+SketcherPrs_LengthDimension::~SketcherPrs_LengthDimension()
+{
+  delete myStyleListener;
 }
 
+bool SketcherPrs_LengthDimension::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
+                                         const std::shared_ptr<GeomAPI_Ax3>& thePlane)
+{
+  gp_Pnt aPnt1, aPnt2;
+  return readyToDisplay(theConstraint, thePlane, aPnt1, aPnt2);
+}
 
-void SketcherPrs_LengthDimension::Compute(const Handle(PrsMgr_PresentationManager3d)& thePresentationManager,
-                                 const Handle(Prs3d_Presentation)& thePresentation, 
-                                 const Standard_Integer theMode)
+void SketcherPrs_LengthDimension::Compute(
+  const Handle(PrsMgr_PresentationManager3d)& thePresentationManager,
+  const Handle(Prs3d_Presentation)& thePresentation, 
+  const Standard_Integer theMode)
 {
   gp_Pnt aPnt1, aPnt2;
-  if (!getPoints(aPnt1, aPnt2))
-    return;
+  bool aReadyToDisplay = readyToDisplay(myConstraint, mySketcherPlane, aPnt1, aPnt2);
+  if (aReadyToDisplay) {
+    myFirstPoint = aPnt1;
+    mySecondPoint = aPnt2;
+
+    myDistance = SketcherPrs_Tools::getFlyoutDistance(myConstraint);
+    myPlane = gp_Pln(mySketcherPlane->impl<gp_Ax3>());
+
+    DataPtr aData = myConstraint->data();
+    AttributeDoublePtr anAttributeValue = aData->real(SketchPlugin_Constraint::VALUE());
+    myValue.init(anAttributeValue);
+  }
 
   // compute flyout distance
-  double aD = SketcherPrs_Tools::getFlyoutDistance(myConstraint);
-  SetFlyout(SketcherPrs_Tools::getFlyoutDistance(myConstraint));
-  SetMeasuredGeometry(aPnt1, aPnt2, myPlane->impl<gp_Ax3>());
+  SetFlyout(myDistance);
+  SetMeasuredGeometry(myFirstPoint, mySecondPoint, myPlane);
 
   // Update variable aspect parameters (depending on viewer scale)
-  myAspect->SetExtensionSize(myAspect->ArrowAspect()->Length());
-  myAspect->SetArrowTailSize(myAspect->ArrowAspect()->Length());
-  // The value of vertical aligment is sometimes changed
-  myAspect->TextAspect()->SetVerticalJustification(Graphic3d_VTA_CENTER);
+  double aTextSize = 0.0;
+  GetValueString(aTextSize);
+  SketcherPrs_Tools::updateArrows(DimensionAspect(), GetValue(), aTextSize);
+
+  // Update text visualization: parameter value or parameter text
+  myStyleListener->updateDimensions(this, myValue);
 
   AIS_LengthDimension::Compute(thePresentationManager, thePresentation, theMode);
+
+  if (!aReadyToDisplay)
+    SketcherPrs_Tools::sendEmptyPresentationError(myConstraint,
+                              "An empty AIS presentation: SketcherPrs_LengthDimension");
 }
 
-bool SketcherPrs_LengthDimension::getPoints(gp_Pnt& thePnt1, gp_Pnt& thePnt2)
+bool SketcherPrs_LengthDimension::readyToDisplay(ModelAPI_Feature* theConstraint,
+                                                 const std::shared_ptr<GeomAPI_Ax3>& thePlane,
+                                                 gp_Pnt& thePnt1, gp_Pnt& thePnt2)
 {
-  DataPtr aData = myConstraint->data();
-  if (myConstraint->getKind() == SketchPlugin_ConstraintLength::ID()) {
+  DataPtr aData = theConstraint->data();
+  if (theConstraint->getKind() == SketchPlugin_ConstraintLength::ID()) {
     // The constraint is length
     std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = 
       std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>
@@ -93,16 +124,16 @@ bool SketcherPrs_LengthDimension::getPoints(gp_Pnt& thePnt1, gp_Pnt& thePnt2)
     std::shared_ptr<GeomDataAPI_Point2D> aEndPoint = 
       std::dynamic_pointer_cast<GeomDataAPI_Point2D>
       (aLineData->attribute(SketchPlugin_Line::END_ID()));
-    thePnt1 = myPlane->to3D(aStartPoint->x(), aStartPoint->y())->impl<gp_Pnt>();
-    thePnt2 = myPlane->to3D(aEndPoint->x(), aEndPoint->y())->impl<gp_Pnt>();
+    thePnt1 = thePlane->to3D(aStartPoint->x(), aStartPoint->y())->impl<gp_Pnt>();
+    thePnt2 = thePlane->to3D(aEndPoint->x(), aEndPoint->y())->impl<gp_Pnt>();
     return true;
 
-  } else if (myConstraint->getKind() == SketchPlugin_ConstraintDistance::ID()) {
+  } else if (theConstraint->getKind() == SketchPlugin_ConstraintDistance::ID()) {
     // The constraint is distance
     std::shared_ptr<GeomDataAPI_Point2D> aPoint_A = SketcherPrs_Tools::getFeaturePoint(
-        aData, SketchPlugin_Constraint::ENTITY_A(), myPlane);
+        aData, SketchPlugin_Constraint::ENTITY_A(), thePlane);
     std::shared_ptr<GeomDataAPI_Point2D> aPoint_B = SketcherPrs_Tools::getFeaturePoint(
-        aData, SketchPlugin_Constraint::ENTITY_B(), myPlane);
+        aData, SketchPlugin_Constraint::ENTITY_B(), thePlane);
 
     std::shared_ptr<GeomAPI_Pnt2d> aPnt_A;
     std::shared_ptr<GeomAPI_Pnt2d> aPnt_B;
@@ -130,9 +161,9 @@ bool SketcherPrs_LengthDimension::getPoints(gp_Pnt& thePnt1, gp_Pnt& thePnt2)
     if (!aPnt_A || !aPnt_B) // Objects not found
       return false;
 
-    // Get points from these objects
-    std::shared_ptr<GeomAPI_Pnt> aPoint1 = myPlane->to3D(aPnt_A->x(), aPnt_A->y());
-    std::shared_ptr<GeomAPI_Pnt> aPoint2 = myPlane->to3D(aPnt_B->x(), aPnt_B->y());
+    // Get points from these object
+    std::shared_ptr<GeomAPI_Pnt> aPoint1 = thePlane->to3D(aPnt_A->x(), aPnt_A->y());
+    std::shared_ptr<GeomAPI_Pnt> aPoint2 = thePlane->to3D(aPnt_B->x(), aPnt_B->y());
     thePnt1 = aPoint1->impl<gp_Pnt>();
     thePnt2 = aPoint2->impl<gp_Pnt>();
     return true;