src/SketchPlugin/SketchPlugin_Line.cpp

   1 // File:        SketchPlugin_Line.cxx
   2 // Created:     27 Mar 2014
   3 // Author:      Mikhail PONIKAROV
   4
   5 #include "SketchPlugin_Line.h"
   6 #include "SketchPlugin_Sketch.h"
   7 #include <ModelAPI_Data.h>
   8 #include <ModelAPI_ResultConstruction.h>
   9 #include <ModelAPI_AttributeSelection.h>
  10 #include <ModelAPI_Validator.h>
  11 #include <ModelAPI_Session.h>
  12
  13 #include <GeomAPI_Pnt.h>
  14 #include <GeomAPI_Lin2d.h>
  15 #include <GeomAPI_Pnt2d.h>
  16
  17 #include <GeomAlgoAPI_EdgeBuilder.h>
  18 #include <GeomDataAPI_Point2D.h>
  19
  20 using namespace std;
  21
  22 SketchPlugin_Line::SketchPlugin_Line()
  23     : SketchPlugin_Feature()
  24 {}
  25
  26 void SketchPlugin_Line::initAttributes()
  27 {
  28   data()->addAttribute(START_ID(), GeomDataAPI_Point2D::type());
  29   data()->addAttribute(END_ID(), GeomDataAPI_Point2D::type());
  30   data()->addAttribute(EXTERNAL_ID(), ModelAPI_AttributeSelection::type());
  31   ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), EXTERNAL_ID());
  32 }
  33
  34 void SketchPlugin_Line::execute()
  35 {
  36   SketchPlugin_Sketch* aSketch = sketch();
  37   if (aSketch) {
  38     // compute a start point in 3D view
  39     boost::shared_ptr<GeomDataAPI_Point2D> aStartAttr = boost::dynamic_pointer_cast<
  40         GeomDataAPI_Point2D>(data()->attribute(START_ID()));
  41     // compute an end point in 3D view
  42     boost::shared_ptr<GeomDataAPI_Point2D> anEndAttr = boost::dynamic_pointer_cast<
  43         GeomDataAPI_Point2D>(data()->attribute(END_ID()));
  44     if (aStartAttr->isInitialized() && anEndAttr->isInitialized()) {
  45       boost::shared_ptr<GeomAPI_Pnt> aStart(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
  46       boost::shared_ptr<GeomAPI_Pnt> anEnd(aSketch->to3D(anEndAttr->x(), anEndAttr->y()));
  47       // make linear edge
  48       boost::shared_ptr<GeomAPI_Edge> anEdge = GeomAlgoAPI_EdgeBuilder::line(aStart, anEnd);
  49       // store the result
  50       boost::shared_ptr<ModelAPI_ResultConstruction> aConstr = document()->createConstruction(
  51           data());
  52       aConstr->setShape(anEdge);
  53       aConstr->setIsInHistory(false);
  54       setResult(aConstr);
  55     }
  56   }
  57 }
  58
  59 void SketchPlugin_Line::move(double theDeltaX, double theDeltaY)
  60 {
  61   boost::shared_ptr<ModelAPI_Data> aData = data();
  62   if (!aData->isValid())
  63     return;
  64
  65   boost::shared_ptr<GeomDataAPI_Point2D> aPoint1 = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>
  66     (aData->attribute(START_ID()));
  67   aPoint1->move(theDeltaX, theDeltaY);
  68
  69   boost::shared_ptr<GeomDataAPI_Point2D> aPoint2 = boost::dynamic_pointer_cast<GeomDataAPI_Point2D>
  70     (aData->attribute(END_ID()));
  71   aPoint2->move(theDeltaX, theDeltaY);
  72 }
  73
  74 double SketchPlugin_Line::distanceToPoint(const boost::shared_ptr<GeomAPI_Pnt2d>& thePoint)
  75 {
  76   double aDelta = 0;
  77
  78   boost::shared_ptr<ModelAPI_Data> aData = data();
  79   boost::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
  80     boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(START_ID()));
  81   boost::shared_ptr<GeomDataAPI_Point2D> aPoint2 =
  82     boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(END_ID()));
  83
  84   GeomAPI_Lin2d aLin2d(aPoint1->x(), aPoint1->y(), aPoint2->x(), aPoint2->y());
  85
  86   if (false/*projection*/) {  // TODO: if it has not been necessary, remove this block
  87     boost::shared_ptr<GeomAPI_Pnt2d> aResult = aLin2d.project(thePoint);
  88     aDelta = aResult->distance(thePoint);
  89   } else {  // distance
  90     aDelta = aLin2d.distance(thePoint);
  91   }
  92
  93   return aDelta;
  94 }
  95
  96 bool SketchPlugin_Line::isFixed() {
  97   return data()->selection(EXTERNAL_ID())->context();
  98 }
  99
 100 void SketchPlugin_Line::attributeChanged() {
 101   static bool myIsUpdated = false; // to avoid infinitive cycle on attrubtes change
 102   boost::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
 103   if (aSelection && !myIsUpdated) { // update arguments due to the selection value
 104     myIsUpdated = true;
 105     boost::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
 106     boost::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
 107       boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
 108     aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
 109     boost::shared_ptr<GeomDataAPI_Point2D> anEndAttr =
 110       boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(END_ID()));
 111     anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
 112     myIsUpdated = false;
 113   }
 114 }