stream_object.h

#ifndef STREAM_OBJECT_H
#define STREAM_OBJECT_H

#include <memory>
#include <vector>
#include "core/template_decl.h"
#include "core/export_handling.h"

struct SrcTreeNode;
class StreamObjectPrivate;

typedef std::shared_ptr<SrcTreeNode> SourceID;

struct SrcTreeNode
{
    std::vector<SourceID> sources;
};

class ROVIZ_EXPORT StreamObject
{
    // Needed because we have to access the protected members of a StreamObject
    // which is not 'this' in the conversion constructors of the derived classes.
    MAKE_ALL_STREAMS_A_FRIEND

public:
    StreamObject();
    virtual ~StreamObject() = default;

    SourceID id(void) const;

protected:
    std::shared_ptr<StreamObjectPrivate> _this_base;

    // Cannot be done in the constructer, because the derived class has to
    // initialize the private data first.
    void initSources(std::initializer_list<SourceID> sources = {});

    // C++ doesn't allow this, just make sure the object implements such a
    // function.
//  virtual static QWidget *initWidget(StreamBase *stream);
};

DECLARE_STREAM_OBJECT(StreamObject)

#endif // STREAM_OBJECT_H