dataSourceRelationship.h

//
// Copyright 2020 Pixar
//
// Licensed under the terms set forth in the LICENSE.txt file available at
// https://openusd.org/license.
//
#ifndef PXR_USD_IMAGING_USD_IMAGING_DATA_SOURCE_RELATIONSHIP_H
#define PXR_USD_IMAGING_USD_IMAGING_DATA_SOURCE_RELATIONSHIP_H
 
#include "pxr/usdImaging/usdImaging/api.h"
#include "pxr/usdImaging/usdImaging/dataSourceStageGlobals.h"
#include "pxr/usd/usd/relationship.h"
#include "pxr/imaging/hd/dataSource.h"
#include "pxr/imaging/hd/dataSourceTypeDefs.h"
 
PXR_NAMESPACE_OPEN_SCOPE
 
class UsdImagingDataSourceRelationship : public HdPathArrayDataSource
{
public:
    HD_DECLARE_DATASOURCE(UsdImagingDataSourceRelationship);
 
    USDIMAGING_API
    VtValue GetValue(HdSampledDataSource::Time shutterOffset) override;
 
    USDIMAGING_API
    VtArray<SdfPath> GetTypedValue(
            HdSampledDataSource::Time shutterOffset) override;
 
    USDIMAGING_API
    bool GetContributingSampleTimesForInterval(
            HdSampledDataSource::Time startTime,
            HdSampledDataSource::Time endTime,
            std::vector<HdSampledDataSource::Time> *outSampleTimes) override;
 
private:
    USDIMAGING_API
    UsdImagingDataSourceRelationship(
            const UsdRelationship &usdRel,
            const UsdImagingDataSourceStageGlobals &stageGlobals);
 
private:
    UsdRelationship _usdRel;
    const UsdImagingDataSourceStageGlobals & _stageGlobals;
};
 
HD_DECLARE_DATASOURCE_HANDLES(UsdImagingDataSourceRelationship);
 
PXR_NAMESPACE_CLOSE_SCOPE
 
#endif // PXR_USD_IMAGING_USD_IMAGING_DATA_SOURCE_RELATIONSHIP_H