1 // Copyright (C) 2014-2017 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or
18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
21 #ifndef SketchPlugin_ConstraintLength_H_
22 #define SketchPlugin_ConstraintLength_H_
24 #include "SketchPlugin.h"
25 #include "SketchPlugin_ConstraintBase.h"
26 #include "SketchPlugin_Sketch.h"
28 #include <GeomAPI_ICustomPrs.h>
33 class GeomDataAPI_Point2D;
35 /** \class SketchPlugin_ConstraintLength
37 * \brief Feature for creation of a new constraint which defines a length of a line segment
39 * This constraint has two attributes:
40 * SketchPlugin_Constraint::VALUE() (length) and SketchPlugin_Constraint::ENTITY_A() (segment),
41 * SketchPlugin_Constraint::FLYOUT_VALUE_PNT() (distance of a constraints handle)
43 class SketchPlugin_ConstraintLength : public SketchPlugin_ConstraintBase
46 /// Length constraint kind
47 inline static const std::string& ID()
49 static const std::string MY_CONSTRAINT_LENGTH_ID("SketchConstraintLength");
50 return MY_CONSTRAINT_LENGTH_ID;
53 /// \brief Returns the kind of a feature
54 SKETCHPLUGIN_EXPORT virtual const std::string& getKind()
56 static std::string MY_KIND = SketchPlugin_ConstraintLength::ID();
60 /// attribute name of dimension location type
61 inline static const std::string& LOCATION_TYPE_ID()
63 static const std::string MY_LOCATION_TYPE_ID("LocationType");
64 return MY_LOCATION_TYPE_ID;
67 /// \brief Creates a new part document if needed
68 SKETCHPLUGIN_EXPORT virtual void execute();
70 /// Computes the attribute value on the base of other attributes if the value can be computed
71 /// \param theAttributeId an attribute index to be computed
72 /// \return a boolean value about it is computed
73 SKETCHPLUGIN_EXPORT virtual bool compute(const std::string& theAttributeId);
75 /// \brief Request for initialization of data model of the feature: adding all attributes
76 SKETCHPLUGIN_EXPORT virtual void initAttributes();
78 /// Retuns the parameters of color definition in the resources config manager
79 SKETCHPLUGIN_EXPORT virtual void colorConfigInfo(std::string& theSection, std::string& theName,
80 std::string& theDefault);
82 /// Returns the AIS preview
83 SKETCHPLUGIN_EXPORT virtual AISObjectPtr getAISObject(AISObjectPtr thePrevious);
85 /// Called on change of any argument-attribute of this object
86 /// \param theID identifier of changed attribute
87 SKETCHPLUGIN_EXPORT virtual void attributeChanged(const std::string& theID);
89 /// \brief Use plugin manager for features creation
90 SketchPlugin_ConstraintLength();
92 /// Computes distance between lenght point attributes
93 /// \param theValue [out] distance or 0 if one of point attributes is not initialized
94 /// \return boolean value if distance is computed
95 bool computeLenghtValue(double& theValue);
98 /// retrns the points-base of length, returns false if it is not possible
100 std::shared_ptr<GeomAPI_Pnt>& thePoint1, std::shared_ptr<GeomAPI_Pnt>& thePoint2,
101 std::shared_ptr<GeomDataAPI_Point2D>& theStartPoint,
102 std::shared_ptr<GeomDataAPI_Point2D>& theEndPoint);
105 bool myFlyoutUpdate; ///< to avoid cyclic dependencies on automatic updates of flyout point