1 // Copyright (C) 2014-2023 CEA, EDF
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 email : webmaster.salome@opencascade.com
20 #ifndef SketchPlugin_ConstraintLength_H_
21 #define SketchPlugin_ConstraintLength_H_
23 #include "SketchPlugin.h"
24 #include "SketchPlugin_ConstraintBase.h"
25 #include "SketchPlugin_Sketch.h"
27 #include <GeomAPI_ICustomPrs.h>
32 class GeomDataAPI_Point2D;
34 /** \class SketchPlugin_ConstraintLength
36 * \brief Feature for creation of a new constraint which defines a length of a line segment
38 * This constraint has two attributes:
39 * SketchPlugin_Constraint::VALUE() (length) and SketchPlugin_Constraint::ENTITY_A() (segment),
40 * SketchPlugin_Constraint::FLYOUT_VALUE_PNT() (distance of a constraints handle)
42 class SketchPlugin_ConstraintLength : public SketchPlugin_ConstraintBase
45 /// Length constraint kind
46 inline static const std::string& ID()
48 static const std::string MY_CONSTRAINT_LENGTH_ID("SketchConstraintLength");
49 return MY_CONSTRAINT_LENGTH_ID;
52 /// \brief Returns the kind of a feature
53 SKETCHPLUGIN_EXPORT virtual const std::string& getKind()
55 static std::string MY_KIND = SketchPlugin_ConstraintLength::ID();
59 /// attribute name of dimension location type
60 inline static const std::string& LOCATION_TYPE_ID()
62 static const std::string MY_LOCATION_TYPE_ID("LocationType");
63 return MY_LOCATION_TYPE_ID;
66 /// \brief Creates a new part document if needed
67 SKETCHPLUGIN_EXPORT virtual void execute();
69 /// Computes the attribute value on the base of other attributes if the value can be computed
70 /// \param theAttributeId an attribute index to be computed
71 /// \return a boolean value about it is computed
72 SKETCHPLUGIN_EXPORT virtual bool compute(const std::string& theAttributeId);
74 /// \brief Request for initialization of data model of the feature: adding all attributes
75 SKETCHPLUGIN_EXPORT virtual void initAttributes();
77 /// Retuns the parameters of color definition in the resources config manager
78 SKETCHPLUGIN_EXPORT virtual void colorConfigInfo(std::string& theSection, std::string& theName,
79 std::string& theDefault);
81 /// Returns the AIS preview
82 SKETCHPLUGIN_EXPORT virtual AISObjectPtr getAISObject(AISObjectPtr thePrevious);
84 /// Called on change of any argument-attribute of this object
85 /// \param theID identifier of changed attribute
86 SKETCHPLUGIN_EXPORT virtual void attributeChanged(const std::string& theID);
88 /// \brief Use plugin manager for features creation
89 SketchPlugin_ConstraintLength();
91 /// Computes distance between lenght point attributes
92 /// \param theValue [out] distance or 0 if one of point attributes is not initialized
93 /// \return boolean value if distance is computed
94 bool computeLenghtValue(double& theValue);
97 /// retrns the points-base of length, returns false if it is not possible
99 std::shared_ptr<GeomAPI_Pnt>& thePoint1, std::shared_ptr<GeomAPI_Pnt>& thePoint2,
100 std::shared_ptr<GeomDataAPI_Point2D>& theStartPoint,
101 std::shared_ptr<GeomDataAPI_Point2D>& theEndPoint);
104 bool myFlyoutUpdate; ///< to avoid cyclic dependencies on automatic updates of flyout point