output-designation.cpp File Reference

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Description

Implementation details of OutputDesignation and OutputMapping.

Both of these are mostly intended as interface elements to represent the intention to connect to another MObject, or a translation and mapping of such connection intentions. But parts of the implementation are kept here in a translation unit separate of the usage site: The implementation of the various kinds of OutputDesignation spec (absolute, indirect, relative) and the connection between OutputMapping and the rules based system.

See also

OutputDesignation

OutputMapping

OutputMapping_test

Definition in file output-designation.cpp.

#include "lib/error.hpp"
#include "lib/symbol.hpp"
#include "lib/query-util.hpp"
#include "common/query/query-resolver.hpp"
#include "steam/mobject/mobject.hpp"
#include "steam/mobject/placement-ref.hpp"
#include "steam/mobject/output-designation.hpp"
#include "steam/mobject/output-mapping.hpp"
#include "steam/config-resolver.hpp"
#include "lib/util.hpp"
#include <boost/functional/hash.hpp>
#include <cstdlib>

Classes
struct	AbsoluteSpec
struct	IndirectSpec
struct	RelativeSpec

Typedefs
typedef OutputDesignation::PID	PID
typedef OutputDesignation::PPipe	PPipe
typedef OutputDesignation::TargetSpec	TargetSpec

Functions
Query< asset::Pipe >	build_corresponding_sourceQuery (Query< asset::Pipe > const &)
	..and build the corresponding defaults source query for this case
uint	is_defaults_query_with_channel (Query< asset::Pipe > const &)
	detect the special case, when actually the Nth solution of a defaults query is requested
HashVal	resolveQuery (Query< asset::Pipe > const &)
	delegate target pipe resolution to the rules system More...
HashVal	slot (Query< asset::Pipe > const &)
	yield a suitable table slot for this query More...

Variables
Symbol	SEQNR_PREDICATE = "ord"

Namespaces
	steam
	Steam-Layer implementation namespace root.
	steam::mobject
	Media-Objects, edit operations and high-level session.

Function Documentation

slot()

HashVal slot

(

Query< asset::Pipe > const &

query

)

yield a suitable table slot for this query

to allow for the use of queries mixed with normal Pipe-IDs in a single table, we rely on the hash_value() function, to be picked up by ADL

Examples:

/Werk/devel/lumi/src/lib/hetero-data.hpp.

Definition at line 153 of file output-designation.cpp.

References steam::mobject::_mapping::slot().

Referenced by steam::mobject::_mapping::slot().

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resolveQuery()

HashVal resolveQuery

(

Query< asset::Pipe > const &

query4pipe

)

delegate target pipe resolution to the rules system

Parameters

Query

for pipe, which is handed over as-is to the rules engine.

Returns

key for a table slot to hold the associated mapping. This slot is assumed to contain the mapped Pipe-ID for the given query – including the possibility of a zero hash to signal an unconnected mapping.

Definition at line 164 of file output-designation.cpp.

References ConfigResolver::instance, QueryHandler< TY >::resolve(), and steam::mobject::_mapping::resolveQuery().

Referenced by steam::mobject::_mapping::resolveQuery().

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