-void SketchPlugin_Line::attributeChanged() {
- static bool myIsUpdated = false; // to avoid infinitive cycle on attrubtes change
- boost::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
- if (aSelection && !myIsUpdated) { // update arguments due to the selection value
- myIsUpdated = true;
- boost::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
- boost::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
- boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(START_ID()));
- aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
- boost::shared_ptr<GeomDataAPI_Point2D> anEndAttr =
- boost::dynamic_pointer_cast<GeomDataAPI_Point2D>(attribute(END_ID()));
- anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
- myIsUpdated = false;
+void SketchPlugin_Line::attributeChanged(const std::string& theID) {
+ // the second condition for unability to move external segments anywhere
+ // isCopy() is checked temporary for case when copied lines stored external id state
+ // to be removed after debug
+ if ((theID == EXTERNAL_ID() || isFixed()) && !isCopy()) {
+ std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
+ if (!aSelection) {
+ // empty shape in selection shows that the shape is equal to context
+ ResultPtr anExtRes = selection(EXTERNAL_ID())->context();
+ if (anExtRes)
+ aSelection = anExtRes->shape();
+ }
+ // 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()));
+ updateLenghtValue();
+ }
+ }
+ else if (theID == START_ID() || theID == END_ID()) {
+ updateLenghtValue();
+ }
+}
+
+void SketchPlugin_Line::updateLenghtValue()
+{
+ std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
+ GeomDataAPI_Point2D>(data()->attribute(START_ID()));
+ std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
+ GeomDataAPI_Point2D>(data()->attribute(END_ID()));
+ if (aStartAttr->isInitialized() && anEndAttr->isInitialized()) {
+ double aDistance = aStartAttr->pnt()->distance(anEndAttr->pnt());
+ data()->real(LENGTH_ID())->setValue(aDistance);