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#ifndef EFFECTSBACKEND_H
#define EFFECTSBACKEND_H
#include <QObject>
#include <QList>
#include <QSet>
#include <QString>
#include "effects/defs.h"
#include "effects/effect.h"
#include "effects/effectinstantiator.h"
#include "preferences/usersettings.h"
class EffectsManager;
class EffectsBackend;
class EffectProcessor;
// An EffectsBackend is an implementation of a provider of Effect's for use
// within the rest of Mixxx. The job of the EffectsBackend is to both enumerate
// and instantiate effects.
class EffectsBackend : public QObject {
Q_OBJECT
public:
EffectsBackend(QObject* pParent, EffectBackendType type);
virtual ~EffectsBackend();
// returns a list sorted like it should be displayed in the GUI
virtual const QList<QString> getEffectIds() const;
virtual EffectManifestPointer getManifest(const QString& effectId) const;
virtual bool canInstantiateEffect(const QString& effectId) const;
virtual EffectPointer instantiateEffect(
EffectsManager* pEffectsManager, const QString& effectId);
signals:
void effectRegistered(EffectManifestPointer);
protected:
void registerEffect(const QString& id,
EffectManifestPointer pManifest,
EffectInstantiatorPointer pInstantiator);
template <typename EffectProcessorImpl>
void registerEffect() {
registerEffect(
EffectProcessorImpl::getId(),
EffectProcessorImpl::getManifest(),
EffectInstantiatorPointer(
new EffectProcessorInstantiator<EffectProcessorImpl>()));
}
EffectBackendType m_type;
private:
class RegisteredEffect {
public:
RegisteredEffect(EffectManifestPointer pManifest, EffectInstantiatorPointer pInitator)
: m_pManifest(pManifest),
m_pInitator(pInitator) {
}
RegisteredEffect() {
}
EffectManifestPointer manifest() const { return m_pManifest; };
EffectInstantiatorPointer initiator() const { return m_pInitator; };
private:
EffectManifestPointer m_pManifest;
EffectInstantiatorPointer m_pInitator;
};
QMap<QString, RegisteredEffect> m_registeredEffects;
QList<QString> m_effectIds;
};
#endif /* EFFECTSBACKEND_H */
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