Create validator for distance constraint

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

diff --git a/src/SketchPlugin/SketchPlugin_ConstraintDistance.cpp b/src/SketchPlugin/SketchPlugin_ConstraintDistance.cpp
index 0c499fff0e88763ed5078994ed8e41bb5889ba1a..de504f56ea4b1ca99cc88607c51d4dba6df46f09 100644 (file)
--- a/src/SketchPlugin/SketchPlugin_ConstraintDistance.cpp
+++ b/src/SketchPlugin/SketchPlugin_ConstraintDistance.cpp
@@ -5,6 +5,7 @@
 #include "SketchPlugin_ConstraintDistance.h"
 #include <SketchPlugin_Point.h>
 #include <SketchPlugin_Circle.h>
+#include <SketchPlugin_Line.h>
 
 #include <GeomAPI_Lin2d.h>
 #include <GeomAPI_Pnt2d.h>
@@ -13,16 +14,12 @@
 #include <ModelAPI_AttributeDouble.h>
 #include <ModelAPI_Data.h>
 
-/// 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()
 {
 }
 
+//*************************************************************************************
 void SketchPlugin_ConstraintDistance::initAttributes()
 {
   data()->addAttribute(SketchPlugin_Constraint::VALUE(),    ModelAPI_AttributeDouble::type());
@@ -31,22 +28,39 @@ void SketchPlugin_ConstraintDistance::initAttributes()
   data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefAttr::type());
 }
 
+//*************************************************************************************
 void SketchPlugin_ConstraintDistance::execute()
 {
   boost::shared_ptr<ModelAPI_Data> aData = data();
-
-  boost::shared_ptr<GeomDataAPI_Point2D> aPoint_A = getFeaturePoint(aData, SketchPlugin_Constraint::ENTITY_A());
-  boost::shared_ptr<GeomDataAPI_Point2D> aPoint_B = getFeaturePoint(aData, SketchPlugin_Constraint::ENTITY_B());
-  if (aPoint_A && aPoint_B) {
-    AttributeDoublePtr anAttr_Value =
-      boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(aData->attribute(SketchPlugin_Constraint::VALUE()));
-
-    if (!anAttr_Value->isInitialized()) {
-      anAttr_Value->setValue(aPoint_A->pnt()->distance(aPoint_B->pnt()));
+  AttributeDoublePtr anAttr_Value =
+    boost::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
+      aData->attribute(SketchPlugin_Constraint::VALUE()));
+
+  if (!anAttr_Value->isInitialized()) {
+    boost::shared_ptr<GeomDataAPI_Point2D> aPoint_A = 
+      getFeaturePoint(aData, SketchPlugin_Constraint::ENTITY_A());
+    boost::shared_ptr<GeomDataAPI_Point2D> aPoint_B = 
+      getFeaturePoint(aData, SketchPlugin_Constraint::ENTITY_B());
+  
+    if (aPoint_A && aPoint_B) { // both points
+        anAttr_Value->setValue(aPoint_A->pnt()->distance(aPoint_B->pnt()));
+    } else {
+      if (!aPoint_A && aPoint_B) { //Line and point
+        boost::shared_ptr<SketchPlugin_Line> aLine = 
+          getFeatureLine(aData, SketchPlugin_Constraint::ENTITY_A());
+        if (aLine)
+          anAttr_Value->setValue(aLine->distanceToPoint(aPoint_B->pnt()));
+      } else if (aPoint_A && !aPoint_B) { // Point and line
+        boost::shared_ptr<SketchPlugin_Line> aLine = 
+          getFeatureLine(aData, SketchPlugin_Constraint::ENTITY_B());
+        if(aLine)
+          anAttr_Value->setValue(aLine->distanceToPoint(aPoint_A->pnt()));
+      }
     }
   }
 }
 
+//*************************************************************************************
 boost::shared_ptr<GeomAPI_AISObject> SketchPlugin_ConstraintDistance::getAISObject(
                     boost::shared_ptr<GeomAPI_AISObject> thePrevious)
 {
@@ -58,14 +72,36 @@ boost::shared_ptr<GeomAPI_AISObject> SketchPlugin_ConstraintDistance::getAISObje
   DataPtr aData = data();
   boost::shared_ptr<GeomDataAPI_Point2D> aPoint_A = getFeaturePoint(aData, SketchPlugin_Constraint::ENTITY_A());
   boost::shared_ptr<GeomDataAPI_Point2D> aPoint_B = getFeaturePoint(aData, SketchPlugin_Constraint::ENTITY_B());
-  if (!aPoint_A || !aPoint_B)
+
+  boost::shared_ptr<GeomAPI_Pnt2d> aPnt_A;
+  boost::shared_ptr<GeomAPI_Pnt2d> aPnt_B;
+
+  if (aPoint_A && aPoint_B) {
+    aPnt_A = aPoint_A->pnt();
+    aPnt_B = aPoint_B->pnt();
+  } else if (!aPoint_A && aPoint_B) {
+    boost::shared_ptr<SketchPlugin_Line> aLine = 
+      getFeatureLine(aData, SketchPlugin_Constraint::ENTITY_A());
+    if (aLine) {
+      aPnt_B = aPoint_B->pnt();
+      aPnt_A = getProjectionPoint(aLine, aPnt_B);
+    }
+  } else if (aPoint_A && !aPoint_B) {
+    boost::shared_ptr<SketchPlugin_Line> aLine = 
+      getFeatureLine(aData, SketchPlugin_Constraint::ENTITY_B());
+    if (aLine) {
+      aPnt_A = aPoint_A->pnt();
+      aPnt_B = getProjectionPoint(aLine, aPnt_A);
+    }
+  }
+  if (!aPnt_A || !aPnt_B)
     return thePrevious;
 
   boost::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr = 
     boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
 
-  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());
+  boost::shared_ptr<GeomAPI_Pnt> aPoint1 = sketch()->to3D(aPnt_A->x(), aPnt_A->y());
+  boost::shared_ptr<GeomAPI_Pnt> aPoint2 = sketch()->to3D(aPnt_B->x(), aPnt_B->y());
   boost::shared_ptr<GeomAPI_Pnt> aFlyoutPnt = aFlyOutAttr->isInitialized() ? 
                                               sketch()->to3D(aFlyOutAttr->x(), aFlyOutAttr->y()) : 
                                               boost::shared_ptr<GeomAPI_Pnt>();
@@ -82,6 +118,7 @@ boost::shared_ptr<GeomAPI_AISObject> SketchPlugin_ConstraintDistance::getAISObje
   return anAIS;
 }
 
+//*************************************************************************************
 void SketchPlugin_ConstraintDistance::move(double theDeltaX, double theDeltaY)
 {
   boost::shared_ptr<ModelAPI_Data> aData = data();
@@ -93,6 +130,7 @@ void SketchPlugin_ConstraintDistance::move(double theDeltaX, double theDeltaY)
   aPoint1->setValue(aPoint1->x() + theDeltaX, aPoint1->y() + theDeltaY);
 }
 
+//*************************************************************************************
 boost::shared_ptr<GeomDataAPI_Point2D> getFeaturePoint(DataPtr theData,
                                                        const std::string& theAttribute)
 {
@@ -105,7 +143,7 @@ boost::shared_ptr<GeomDataAPI_Point2D> getFeaturePoint(DataPtr theData,
   boost::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = 
     boost::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theData->attribute(theAttribute));
   if (anAttr)
-    aFeature = SketchPlugin_Sketch::getFeature(anAttr->object());
+    aFeature = ModelAPI_Feature::feature(anAttr->object());
 
   if (aFeature && aFeature->getKind() == SketchPlugin_Point::ID())
     aPointAttr = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>
@@ -113,9 +151,42 @@ boost::shared_ptr<GeomDataAPI_Point2D> getFeaturePoint(DataPtr theData,
   else if (aFeature && aFeature->getKind() == SketchPlugin_Circle::ID())
     aPointAttr = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>
                                           (aFeature->data()->attribute(SketchPlugin_Circle::CENTER_ID()));
-  else {
-    if (anAttr->attr())
+  else if (anAttr->attr()) {
       aPointAttr = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(anAttr->attr());
   }
   return aPointAttr;
 }
+
+//*************************************************************************************
+boost::shared_ptr<SketchPlugin_Line> getFeatureLine(DataPtr theData, const std::string& theAttribute)
+{
+  boost::shared_ptr<SketchPlugin_Line> aLine;
+  if (!theData)
+    return aLine;
+
+  boost::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = 
+    boost::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(theData->attribute(theAttribute));
+  if (anAttr) {
+    FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
+    if (aFeature && aFeature->getKind() == SketchPlugin_Line::ID()) {
+      aLine = boost::dynamic_pointer_cast<SketchPlugin_Line>(aFeature);
+    }
+  }
+  return aLine;
+}
+
+//*************************************************************************************
+boost::shared_ptr<GeomAPI_Pnt2d> getProjectionPoint(const boost::shared_ptr<SketchPlugin_Line>& theLine, 
+                                                          const boost::shared_ptr<GeomAPI_Pnt2d>& thePoint)
+{
+  boost::shared_ptr<ModelAPI_Data> aData = theLine->data();
+  boost::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
+        boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
+        aData->attribute(SketchPlugin_Line::START_ID()));
+  boost::shared_ptr<GeomDataAPI_Point2D> aPoint2 =
+        boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(
+        aData->attribute(SketchPlugin_Line::END_ID()));
+
+  GeomAPI_Lin2d aLin2d(aPoint1->x(), aPoint1->y(), aPoint2->x(), aPoint2->y());
+  return aLin2d.project(thePoint);
+}
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