24 #ifndef PXR_USD_SDF_ABSTRACT_DATA_H 25 #define PXR_USD_SDF_ABSTRACT_DATA_H 28 #include "pxr/usd/sdf/path.h" 31 #include "pxr/base/vt/value.h" 40 #include <type_traits> 42 PXR_NAMESPACE_OPEN_SCOPE
50 #define SDF_DATA_TOKENS \ 51 ((TimeSamples, "timeSamples")) 85 virtual void CopyFrom(
const SdfAbstractDataConstPtr& source);
133 virtual bool Equals(
const SdfAbstractDataRefPtr &rhs)
const;
192 VtValue *value = NULL)
const = 0;
228 const TfToken& fieldName)
const = 0;
239 virtual std::type_info
const &
264 virtual std::vector<TfToken>
List(
const SdfPath& path)
const = 0;
270 const T& defaultValue = T())
const;
284 virtual bool HasDictKey(
const SdfPath& path,
289 virtual bool HasDictKey(
const SdfPath& path,
306 virtual void SetDictValueByKey(
const SdfPath& path,
311 virtual void SetDictValueByKey(
const SdfPath& path,
320 virtual void EraseDictValueByKey(
const SdfPath& path,
328 virtual std::vector<TfToken> ListDictKeys(
const SdfPath& path,
347 virtual std::set<double>
348 ListAllTimeSamples()
const = 0;
351 virtual std::set<double>
352 ListTimeSamplesForPath(
const SdfPath& path)
const = 0;
356 GetBracketingTimeSamples(
double time,
double* tLower,
double* tUpper)
const = 0;
360 GetNumTimeSamplesForPath(
const SdfPath& path)
const = 0;
364 GetBracketingTimeSamplesForPath(
const SdfPath& path,
366 double* tLower,
double* tUpper)
const = 0;
370 QueryTimeSample(
const SdfPath& path,
double time,
371 VtValue *optionalValue = NULL)
const = 0;
374 QueryTimeSample(
const SdfPath& path,
double time,
379 SetTimeSample(
const SdfPath& path,
double time,
384 EraseTimeSample(
const SdfPath& path,
double time) = 0;
401 const TfToken& field,
const T& defaultVal)
const 418 virtual bool StoreValue(
const VtValue& value) = 0;
419 virtual bool StoreValue(
VtValue &&value) = 0;
422 bool StoreValue(
const T& v)
425 *static_cast<T*>(value) = v;
439 const std::type_info& valueType;
446 , valueType(valueType_)
447 , isValueBlock(
false)
448 , typeMismatch(
false)
473 virtual bool StoreValue(
const VtValue& v)
override 477 if (std::is_same<T, SdfValueBlock>::value) {
493 virtual bool StoreValue(
VtValue &&v)
override 497 if (std::is_same<T, SdfValueBlock>::value) {
522 virtual bool GetValue(
VtValue* value)
const = 0;
524 template <
class T>
bool GetValue(T* v)
const 527 *v = *static_cast<const T*>(value);
533 virtual bool IsEqual(
const VtValue& value)
const = 0;
536 const std::type_info& valueType;
540 const std::type_info& valueType_)
542 , valueType(valueType_)
568 virtual bool GetValue(
VtValue* v)
const 574 virtual bool IsEqual(
const VtValue& v)
const 580 const T& _GetValue()
const 582 return *static_cast<const T*>(value);
593 typedef char CharArray[N];
627 PXR_NAMESPACE_CLOSE_SCOPE
629 #endif // PXR_USD_SDF_ABSTRACT_DATA_H virtual SDF_API void EraseSpec(const SdfPath &path)=0
Erase the spec at path and any fields that are on it.
virtual SDF_API void Done(const SdfAbstractData &data)=0
SdfAbstractData::VisitSpecs will call this after visitation is complete, even if some VisitSpec() ret...
Standard pointer typedefs.
Base class for objects used to visit specs in an SdfAbstractData object.
T const & UncheckedGet() const &
Returns a const reference to the held object if the held object is of type T.
A type-erased container for a const field value in an SdfAbstractData.
The fully-typed container for a field value in an SdfAbstractData.
A type-erased container for a field value in an SdfAbstractData.
A special value type that can be used to explicitly author an opinion for an attribute's default valu...
#define TF_DECLARE_WEAK_AND_REF_PTRS(type)
Define standard weak, ref, and vector pointer types.
T UncheckedRemove()
Make this value empty and return the held T instance.
T GetAs(const SdfPath &path, const TfToken &fieldName, const T &defaultValue=T()) const
Return the value for the given path and fieldName.
virtual SDF_API bool HasSpec(const SdfPath &path) const =0
Return true if this data has a spec for path.
Enable a concrete base class for use with TfRefPtr.
virtual SDF_API bool HasSpecAndField(const SdfPath &path, const TfToken &fieldName, SdfAbstractDataValue *value, SdfSpecType *specType) const
Fill specType (which cannot be nullptr) as if by a call to GetSpecType(path).
virtual SDF_API void CreateSpec(const SdfPath &path, SdfSpecType specType)=0
Create a new spec at path with the given specType.
virtual SDF_API bool VisitSpec(const SdfAbstractData &data, const SdfPath &path)=0
SdfAbstractData::VisitSpecs calls this function for every entry it contains, passing itself as data a...
Token for efficient comparison, assignment, and hashing of known strings.
virtual SDF_API void CopyFrom(const SdfAbstractDataConstPtr &source)
Copy the data in source into this data object.
virtual SdfSpecType GetSpecType(const SdfPath &path) const =0
Return the spec type for the spec at path.
#define TF_DECLARE_PUBLIC_TOKENS(...)
Macro to define public tokens.
virtual SDF_API void WriteToStream(std::ostream &out) const
Writes the contents of this data object to out.
The fully-typed container for a field value in an SdfAbstractData.
A path value used to locate objects in layers or scenegraphs.
virtual SDF_API VtValue Get(const SdfPath &path, const TfToken &fieldName) const =0
Return the value for the given path and fieldName.
virtual SDF_API bool Equals(const SdfAbstractDataRefPtr &rhs) const
Returns true if this data object contains the same specs and fields as lhs, false otherwise.
virtual SDF_API bool IsEmpty() const
Returns true if this data object has no specs, false otherwise.
This file defines some macros that are useful for declaring and using static TfTokens.
SdfSpecType
An enum that specifies the type of an object.
virtual SDF_API bool Has(const SdfPath &path, const TfToken &fieldName, SdfAbstractDataValue *value) const =0
Returns whether a value exists for the given path and fieldName.
virtual SDF_API void MoveSpec(const SdfPath &oldPath, const SdfPath &newPath)=0
Move the spec at oldPath to newPath, including all the fields that are on it.
virtual SDF_API void _VisitSpecs(SdfAbstractDataSpecVisitor *visitor) const =0
Visits every spec in this SdfAbstractData object with the given visitor.
virtual SDF_API void Set(const SdfPath &path, const TfToken &fieldName, const VtValue &value)=0
Set the value of the given path and fieldName.
virtual SDF_API bool StreamsData() const =0
Returns true if this data object streams its data to and from its serialized data store on demand.
virtual SDF_API std::type_info const & GetTypeid(const SdfPath &path, const TfToken &fieldName) const
Return the type of the value for fieldName on spec path.
virtual SDF_API void Erase(const SdfPath &path, const TfToken &fieldName)=0
Remove the field at path and fieldName, if one exists.
virtual SDF_API bool IsDetached() const
Returns true if this data object is detached from its serialized data store, false otherwise.
bool IsHolding() const
Return true if this value is holding an object of type T, false otherwise.
Enable a concrete base class for use with TfWeakPtr.
virtual SDF_API std::vector< TfToken > List(const SdfPath &path) const =0
Return the names of all the fields that are set at path.
Provides a container which may hold any type, and provides introspection and iteration over array typ...
SDF_API void VisitSpecs(SdfAbstractDataSpecVisitor *visitor) const
Visits every spec in this SdfAbstractData object with the given visitor.
TfToken class for efficient string referencing and hashing, plus conversions to and from stl string c...
Interface for scene description data storage.
bool TfSafeTypeCompare(const std::type_info &t1, const std::type_info &t2)
Safely compare std::type_info structures.