1 //
2 // Copyright 2016 Pixar
3 //
4 // Licensed under the Apache License, Version 2.0 (the "Apache License")
5 // with the following modification; you may not use this file except in
6 // compliance with the Apache License and the following modification to it:
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24 #ifndef USDGEOM_GENERATED_SCOPE_H
25 #define USDGEOM_GENERATED_SCOPE_H
26 
27 /// \file usdGeom/scope.h
28 
29 #include "pxr/pxr.h"
30 #include "pxr/usd/usdGeom/api.h"
31 #include "pxr/usd/usdGeom/imageable.h"
32 #include "pxr/usd/usd/prim.h"
33 #include "pxr/usd/usd/stage.h"
34 
35 #include "pxr/base/vt/value.h"
36 
37 #include "pxr/base/gf/vec3d.h"
38 #include "pxr/base/gf/vec3f.h"
39 #include "pxr/base/gf/matrix4d.h"
40 
41 #include "pxr/base/tf/token.h"
42 #include "pxr/base/tf/type.h"
43 
44 PXR_NAMESPACE_OPEN_SCOPE
45 
46 class SdfAssetPath;
47 
48 // -------------------------------------------------------------------------- //
49 // SCOPE                                                                      //
50 // -------------------------------------------------------------------------- //
51 
52 /// \class UsdGeomScope
53 ///
54 /// Scope is the simplest grouping primitive, and does not carry the
55 /// baggage of transformability.  Note that transforms should inherit down
56 /// through a Scope successfully - it is just a guaranteed no-op from a
57 /// transformability perspective.
58 ///
59 class UsdGeomScope : public UsdGeomImageable
60 {
61 public:
62     /// Compile time constant representing what kind of schema this class is.
63     ///
64     /// \sa UsdSchemaKind
65     static const UsdSchemaKind schemaKind = UsdSchemaKind::ConcreteTyped;
66 
67     /// Construct a UsdGeomScope on UsdPrim \p prim .
68     /// Equivalent to UsdGeomScope::Get(prim.GetStage(), prim.GetPath())
69     /// for a \em valid \p prim, but will not immediately throw an error for
70     /// an invalid \p prim
71     explicit UsdGeomScope(const UsdPrim& prim=UsdPrim())
UsdGeomImageable(prim)72         : UsdGeomImageable(prim)
73     {
74     }
75 
76     /// Construct a UsdGeomScope on the prim held by \p schemaObj .
77     /// Should be preferred over UsdGeomScope(schemaObj.GetPrim()),
78     /// as it preserves SchemaBase state.
UsdGeomScope(const UsdSchemaBase & schemaObj)79     explicit UsdGeomScope(const UsdSchemaBase& schemaObj)
80         : UsdGeomImageable(schemaObj)
81     {
82     }
83 
84     /// Destructor.
85     USDGEOM_API
86     virtual ~UsdGeomScope();
87 
88     /// Return a vector of names of all pre-declared attributes for this schema
89     /// class and all its ancestor classes.  Does not include attributes that
90     /// may be authored by custom/extended methods of the schemas involved.
91     USDGEOM_API
92     static const TfTokenVector &
93     GetSchemaAttributeNames(bool includeInherited=true);
94 
95     /// Return a UsdGeomScope holding the prim adhering to this
96     /// schema at \p path on \p stage.  If no prim exists at \p path on
97     /// \p stage, or if the prim at that path does not adhere to this schema,
98     /// return an invalid schema object.  This is shorthand for the following:
99     ///
100     /// \code
101     /// UsdGeomScope(stage->GetPrimAtPath(path));
102     /// \endcode
103     ///
104     USDGEOM_API
105     static UsdGeomScope
106     Get(const UsdStagePtr &stage, const SdfPath &path);
107 
108     /// Attempt to ensure a \a UsdPrim adhering to this schema at \p path
109     /// is defined (according to UsdPrim::IsDefined()) on this stage.
110     ///
111     /// If a prim adhering to this schema at \p path is already defined on this
112     /// stage, return that prim.  Otherwise author an \a SdfPrimSpec with
113     /// \a specifier == \a SdfSpecifierDef and this schema's prim type name for
114     /// the prim at \p path at the current EditTarget.  Author \a SdfPrimSpec s
115     /// with \p specifier == \a SdfSpecifierDef and empty typeName at the
116     /// current EditTarget for any nonexistent, or existing but not \a Defined
117     /// ancestors.
118     ///
119     /// The given \a path must be an absolute prim path that does not contain
120     /// any variant selections.
121     ///
122     /// If it is impossible to author any of the necessary PrimSpecs, (for
123     /// example, in case \a path cannot map to the current UsdEditTarget's
124     /// namespace) issue an error and return an invalid \a UsdPrim.
125     ///
126     /// Note that this method may return a defined prim whose typeName does not
127     /// specify this schema class, in case a stronger typeName opinion overrides
128     /// the opinion at the current EditTarget.
129     ///
130     USDGEOM_API
131     static UsdGeomScope
132     Define(const UsdStagePtr &stage, const SdfPath &path);
133 
134 protected:
135     /// Returns the kind of schema this class belongs to.
136     ///
137     /// \sa UsdSchemaKind
138     USDGEOM_API
139     UsdSchemaKind _GetSchemaKind() const override;
140 
141 private:
142     // needs to invoke _GetStaticTfType.
143     friend class UsdSchemaRegistry;
144     USDGEOM_API
145     static const TfType &_GetStaticTfType();
146 
147     static bool _IsTypedSchema();
148 
149     // override SchemaBase virtuals.
150     USDGEOM_API
151     const TfType &_GetTfType() const override;
152 
153 public:
154     // ===================================================================== //
155     // Feel free to add custom code below this line, it will be preserved by
156     // the code generator.
157     //
158     // Just remember to:
159     //  - Close the class declaration with };
160     //  - Close the namespace with PXR_NAMESPACE_CLOSE_SCOPE
161     //  - Close the include guard with #endif
162     // ===================================================================== //
163     // --(BEGIN CUSTOM CODE)--
164 };
165 
166 PXR_NAMESPACE_CLOSE_SCOPE
167 
168 #endif
169