refs #80 - Sketch base GUI: create/draw point, circle and arc

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

diff --git a/src/SketchPlugin/SketchPlugin_Line.cpp b/src/SketchPlugin/SketchPlugin_Line.cpp
index 25751f06bd285d712faccad4ae9ad449a5ba6549..8f8df83040257ecee86f031dfbde797eabb7c462 100644 (file)
--- a/src/SketchPlugin/SketchPlugin_Line.cpp
+++ b/src/SketchPlugin/SketchPlugin_Line.cpp
@@ -5,10 +5,16 @@
 #include "SketchPlugin_Line.h"
 #include "SketchPlugin_Sketch.h"
 #include <ModelAPI_Data.h>
+
 #include <GeomAPI_Pnt.h>
+#include <GeomAPI_Lin2d.h>
+#include <GeomAPI_Pnt2d.h>
+
 #include <GeomAlgoAPI_EdgeBuilder.h>
 #include <GeomDataAPI_Point2D.h>
 
+#include <AIS_InteractiveObject.hxx>
+
 using namespace std;
 
 // face of the square-face displayed for selection of general plane
@@ -36,14 +42,16 @@ const boost::shared_ptr<GeomAPI_Shape>& SketchPlugin_Line::preview()
     // compute a start point in 3D view
     boost::shared_ptr<GeomDataAPI_Point2D> aStartAttr = 
       boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(LINE_ATTR_START));
-    boost::shared_ptr<GeomAPI_Pnt> aStart(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
     // compute an end point in 3D view
     boost::shared_ptr<GeomDataAPI_Point2D> anEndAttr = 
       boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(LINE_ATTR_END));
-    boost::shared_ptr<GeomAPI_Pnt> anEnd(aSketch->to3D(anEndAttr->x(), anEndAttr->y()));
-    // make linear edge
-    boost::shared_ptr<GeomAPI_Shape> anEdge = GeomAlgoAPI_EdgeBuilder::line(aStart, anEnd);
-    setPreview(anEdge);
+    if (aStartAttr->isInitialized() && anEndAttr->isInitialized()) {
+      boost::shared_ptr<GeomAPI_Pnt> aStart(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
+      boost::shared_ptr<GeomAPI_Pnt> anEnd(aSketch->to3D(anEndAttr->x(), anEndAttr->y()));
+      // make linear edge
+      boost::shared_ptr<GeomAPI_Shape> anEdge = GeomAlgoAPI_EdgeBuilder::line(aStart, anEnd);
+      setPreview(anEdge);
+    }
   }
   return getPreview();
 }
@@ -62,3 +70,26 @@ void SketchPlugin_Line::move(double theDeltaX, double theDeltaY)
         boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(LINE_ATTR_END));
   aPoint2->setValue(aPoint2->x() + theDeltaX, aPoint2->y() + theDeltaY);
 }
+
+double SketchPlugin_Line::distanceToPoint(const boost::shared_ptr<GeomAPI_Pnt2d>& thePoint)
+{
+  double aDelta = 0;
+
+  boost::shared_ptr<ModelAPI_Data> aData = data();
+  boost::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
+        boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(LINE_ATTR_START));
+  boost::shared_ptr<GeomDataAPI_Point2D> aPoint2 =
+        boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(LINE_ATTR_END));
+
+  GeomAPI_Lin2d aLin2d(aPoint1->x(), aPoint1->y(), aPoint2->x(), aPoint2->y());
+
+  if (false/*projection*/) { // TODO: if it has not been necessary, remove this block
+    boost::shared_ptr<GeomAPI_Pnt2d> aResult = aLin2d.project(thePoint);
+    aDelta = aResult->distance(thePoint);
+  }
+  else { // distance
+    aDelta = aLin2d.distance(thePoint);
+  }
+
+  return aDelta;
+}