Issue #412: Crash on delete sketch line with constraints

[modules/shaper.git] / src / SketchPlugin / SketchPlugin_ConstraintLength.h

diff --git a/src/SketchPlugin/SketchPlugin_ConstraintLength.h b/src/SketchPlugin/SketchPlugin_ConstraintLength.h
index 5f3ae9aae121173e9897dbf8268c5bd2f178c845..b3954b6fadb246b0908bc902947436a830839b2a 100644 (file)
--- a/src/SketchPlugin/SketchPlugin_ConstraintLength.h
+++ b/src/SketchPlugin/SketchPlugin_ConstraintLength.h
@@ -1,3 +1,5 @@
+// Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
+
 // File:    SketchPlugin_ConstraintLength.h
 // Created: 30 May 2014
 // Author:  Artem ZHIDKOV
@@ -10,10 +12,10 @@
 #include <SketchPlugin_Sketch.h>
 #include <list>
 
-#define LENGTH_COLOR "#ff00ff"
+class GeomDataAPI_Point2D;
 
 /** \class SketchPlugin_ConstraintLength
- *  \ingroup DataModel
+ *  \ingroup Plugins
  *  \brief Feature for creation of a new constraint which defines a length of a line segment
  *
  *  This constraint has two attributes:
@@ -39,6 +41,11 @@ class SketchPlugin_ConstraintLength : public SketchPlugin_ConstraintBase
   /// \brief Creates a new part document if needed
   SKETCHPLUGIN_EXPORT virtual void execute();
 
+  /// Computes the attribute value on the base of other attributes if the value can be computed
+  /// \param theAttributeId an attribute index to be computed
+  /// \return a boolean value about it is computed
+  SKETCHPLUGIN_EXPORT virtual bool compute(const std::string& theAttributeId);
+
   /// \brief Request for initialization of data model of the feature: adding all attributes
   SKETCHPLUGIN_EXPORT virtual void initAttributes();
 
@@ -50,8 +57,19 @@ class SketchPlugin_ConstraintLength : public SketchPlugin_ConstraintBase
   /// \param theDeltaY the delta for Y coordinate is moved
   SKETCHPLUGIN_EXPORT virtual void move(const double theDeltaX, const double theDeltaY);
 
+  /// Called on change of any argument-attribute of this object
+  /// \param theID identifier of changed attribute
+  SKETCHPLUGIN_EXPORT virtual void attributeChanged(const std::string& theID);
+
   /// \brief Use plugin manager for features creation
   SketchPlugin_ConstraintLength();
+
+private:
+  // retrns the points-base of length, returns false if it is not possible
+  bool getPoints(
+    std::shared_ptr<GeomAPI_Pnt>& thePoint1, std::shared_ptr<GeomAPI_Pnt>& thePoint2,
+    std::shared_ptr<GeomDataAPI_Point2D>& theStartPoint,
+    std::shared_ptr<GeomDataAPI_Point2D>& theEndPoint);
 };
 
 #endif