The root class to define filter objects for selection. Advance handling of objects requires the services of filters. These only allow dynamic detection and selection of objects which correspond to the criteria defined in each. Eight standard filters inheriting SelectMgr_Filter are defined in Open CASCADE. You can create your own filters by defining new filter classes inheriting this framework. You use these filters by loading them into an AIS interactive context. More...
#include <SelectMgr_Filter.hxx>
Public Member Functions | |
| virtual Standard_Boolean | IsOk (const Handle< SelectMgr_EntityOwner > &anObj) const =0 |
| Indicates that the selected Interactive Object passes the filter. The owner, anObj, can be either direct or user. A direct owner is the corresponding construction element, whereas a user is the compound shape of which the entity forms a part. When an object is detected by the mouse - in AIS, this is done through a context selector - its owner is passed to the filter as an argument. If the object returns Standard_True, it is kept; if not, it is rejected. If you are creating a filter class inheriting this framework, and the daughter class is to be used in an AIS local context, you will need to implement the virtual function ActsOn. More... | |
| virtual Standard_Boolean | ActsOn (const TopAbs_ShapeEnum aStandardMode) const |
| Returns true in an AIS local context, if this filter operates on a type of subshape defined in a filter class inheriting this framework. This function completes IsOk in an AIS local context. More... | |
 Public Member Functions inherited from MMgt_TShared | |
| virtual void | Delete () const |
| Memory deallocator for transient classes. More... | |
| Public Member Functions inherited from Standard_Transient | |
| Standard_Transient () | |
| Empty constructor. More... | |
| Standard_Transient (const Standard_Transient &) | |
| Copy constructor – does nothing. More... | |
| Standard_Transient & | operator= (const Standard_Transient &) |
| Assignment operator, needed to avoid copying reference counter. More... | |
| virtual | ~Standard_Transient () |
| Destructor must be virtual. More... | |
| virtual const Handle_Standard_Type & | DynamicType () const |
| Returns a type information object about this object. More... | |
| Standard_Boolean | IsInstance (const Handle_Standard_Type &theType) const |
| Returns a true value if this is an instance of Type. More... | |
| Standard_Boolean | IsInstance (const Standard_CString theTypeName) const |
| Returns a true value if this is an instance of TypeName. More... | |
| Standard_Boolean | IsKind (const Handle_Standard_Type &theType) const |
| Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More... | |
| Standard_Boolean | IsKind (const Standard_CString theTypeName) const |
| Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More... | |
| virtual Handle_Standard_Transient | This () const |
| Returns a Handle which references this object. Must never be called to objects created in stack. More... | |
| Standard_Integer | GetRefCount () const |
| Get the reference counter of this object. More... | |
Detailed Description
The root class to define filter objects for selection. Advance handling of objects requires the services of filters. These only allow dynamic detection and selection of objects which correspond to the criteria defined in each. Eight standard filters inheriting SelectMgr_Filter are defined in Open CASCADE. You can create your own filters by defining new filter classes inheriting this framework. You use these filters by loading them into an AIS interactive context.
Member Function Documentation
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virtual |
Returns true in an AIS local context, if this filter operates on a type of subshape defined in a filter class inheriting this framework. This function completes IsOk in an AIS local context.
Reimplemented in SelectMgr_CompositionFilter, StdSelect_FaceFilter, StdSelect_ShapeTypeFilter, StdSelect_EdgeFilter, AIS_BadEdgeFilter, and AIS_C0RegularityFilter.
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pure virtual |
Indicates that the selected Interactive Object passes the filter. The owner, anObj, can be either direct or user. A direct owner is the corresponding construction element, whereas a user is the compound shape of which the entity forms a part. When an object is detected by the mouse - in AIS, this is done through a context selector - its owner is passed to the filter as an argument. If the object returns Standard_True, it is kept; if not, it is rejected. If you are creating a filter class inheriting this framework, and the daughter class is to be used in an AIS local context, you will need to implement the virtual function ActsOn.
Implemented in AIS_AttributeFilter, AIS_SignatureFilter, AIS_ExclusionFilter, AIS_TypeFilter, StdSelect_FaceFilter, StdSelect_EdgeFilter, StdSelect_ShapeTypeFilter, AIS_BadEdgeFilter, AIS_C0RegularityFilter, SelectMgr_AndFilter, and SelectMgr_OrFilter.
The documentation for this class was generated from the following file:
