payload.h
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2 // Copyright 2016 Pixar
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24 #ifndef PXR_USD_SDF_PAYLOAD_H
25 #define PXR_USD_SDF_PAYLOAD_H
26 
28 
29 #include "pxr/pxr.h"
30 #include "pxr/usd/sdf/api.h"
31 #include "pxr/usd/sdf/assetPath.h"
33 #include "pxr/usd/sdf/path.h"
34 
35 #include <boost/functional/hash.hpp>
36 #include <boost/operators.hpp>
37 
38 #include <iosfwd>
39 #include <string>
40 #include <vector>
41 
42 PXR_NAMESPACE_OPEN_SCOPE
43 
44 class SdfPayload;
45 
46 typedef std::vector<SdfPayload> SdfPayloadVector;
47 
60 class SdfPayload : boost::totally_ordered<SdfPayload> {
61 public:
66  SDF_API
67  SdfPayload(
68  const std::string &assetPath = std::string(),
69  const SdfPath &primPath = SdfPath(),
70  const SdfLayerOffset &layerOffset = SdfLayerOffset());
71 
73  const std::string &GetAssetPath() const {
74  return _assetPath;
75  }
76 
81  void SetAssetPath(const std::string &assetPath) {
82  // Go through SdfAssetPath() to raise an error if \p assetPath contains
83  // illegal characters (i.e. control characters).
84  _assetPath = SdfAssetPath(assetPath).GetAssetPath();
85  }
86 
88  const SdfPath &GetPrimPath() const {
89  return _primPath;
90  }
91 
93  void SetPrimPath(const SdfPath &primPath) {
94  _primPath = primPath;
95  }
96 
98  const SdfLayerOffset &GetLayerOffset() const {
99  return _layerOffset;
100  }
101 
103  void SetLayerOffset(const SdfLayerOffset &layerOffset) {
104  _layerOffset = layerOffset;
105  }
106 
108  SDF_API bool operator==(const SdfPayload &rhs) const;
109 
112  SDF_API bool operator<(const SdfPayload &rhs) const;
113 
114 private:
115  friend inline size_t hash_value(const SdfPayload &p) {
116  size_t h = 0;
117  boost::hash_combine(h, p._assetPath);
118  boost::hash_combine(h, p._primPath);
119  boost::hash_combine(h, p._layerOffset);
120  return h;
121  }
122 
123  // The asset path to the external layer.
124  std::string _assetPath;
125 
126  // The root prim path to the referenced prim in the external layer.
127  SdfPath _primPath;
128 
129  // The layer offset to transform time.
130  SdfLayerOffset _layerOffset;
131 };
132 
134 SDF_API
135 std::ostream & operator<<(std::ostream &out, const SdfPayload &payload);
136 
137 PXR_NAMESPACE_CLOSE_SCOPE
138 
139 #endif
const std::string & GetAssetPath() const
Returns the asset path of the layer that the payload uses.
Definition: payload.h:73
SDF_API std::ostream & operator<<(std::ostream &out, const SdfPayload &payload)
Writes the string representation of SdfPayload to out.
const SdfPath & GetPrimPath() const
Returns the scene path of the prim for the payload.
Definition: payload.h:88
void SetAssetPath(const std::string &assetPath)
Sets a new asset path for the layer the payload uses.
Definition: payload.h:81
SDF_API bool operator<(const SdfPayload &rhs) const
Returns whether this payload is less than rhs.
void SetLayerOffset(const SdfLayerOffset &layerOffset)
Sets a new layer offset.
Definition: payload.h:103
Represents a payload and all its meta data.
Definition: payload.h:60
A path value used to locate objects in layers or scenegraphs.
Definition: path.h:290
SDF_API SdfPayload(const std::string &assetPath=std::string(), const SdfPath &primPath=SdfPath(), const SdfLayerOffset &layerOffset=SdfLayerOffset())
Create a payload.
Contains an asset path and an optional resolved path.
Definition: assetPath.h:47
SDF_API bool operator==(const SdfPayload &rhs) const
Returns whether this payload equals rhs.
const SdfLayerOffset & GetLayerOffset() const
Returns the layer offset associated with the payload.
Definition: payload.h:98
const std::string & GetAssetPath() const
Return the asset path.
Definition: assetPath.h:111
Represents a time offset and scale between layers.
Definition: layerOffset.h:61
void SetPrimPath(const SdfPath &primPath)
Sets a new prim path for the prim that the payload uses.
Definition: payload.h:93