- SketchPlugin_Sketch* aSketch = sketch();
- // 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);
-
- return getPreview();
+ double aDelta = 0;
+
+ std::shared_ptr<ModelAPI_Data> aData = data();
+ std::shared_ptr<GeomDataAPI_Point2D> aPoint1 =
+ std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(START_ID()));
+ std::shared_ptr<GeomDataAPI_Point2D> aPoint2 =
+ std::dynamic_pointer_cast<GeomDataAPI_Point2D>(aData->attribute(END_ID()));
+
+ GeomAPI_Lin2d aLin2d(aPoint1->x(), aPoint1->y(), aPoint2->x(), aPoint2->y());
+
+ if (false/*projection*/) { // TODO: if it has not been necessary, remove this block
+ std::shared_ptr<GeomAPI_Pnt2d> aResult = aLin2d.project(thePoint);
+ aDelta = aResult->distance(thePoint);
+ } else { // distance
+ aDelta = aLin2d.distance(thePoint);
+ }
+
+ return aDelta;
+}
+
+const std::string& SketchPlugin_Line::getKind()
+{
+ static std::string MY_KIND = SketchPlugin_Line::ID();
+ return MY_KIND;
+}
+
+bool SketchPlugin_Line::isFixed() {
+ return data()->selection(EXTERNAL_ID())->context().get() != NULL;
+}
+
+void SketchPlugin_Line::attributeChanged(const std::string& theID) {
+ // the second condition for unability to move external segments anywhere
+ if (theID == EXTERNAL_ID() || isFixed()) {
+ std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
+ // update arguments due to the selection value
+ if (aSelection && !aSelection->isNull() && aSelection->isEdge()) {
+ std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
+ std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
+ std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
+ aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
+ std::shared_ptr<GeomDataAPI_Point2D> anEndAttr =
+ std::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(END_ID()));
+ anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
+ }
+ }