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//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2019 Werner Schweer and others
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2
// as published by the Free Software Foundation and appearing in
// the file LICENCE.GPL
//=============================================================================
#ifndef __PLUGIN_API_EXCERPT_H__
#define __PLUGIN_API_EXCERPT_H__
#include "libmscore/excerpt.h"
namespace Ms {
namespace PluginAPI {
class Score;
//---------------------------------------------------------
// Excerpt
// Wrapper class for Excerpt
//
// This is based on the wrapper in scoreelement.h, which
// we cannot use here, because Ms::Excerpt is not derived
// from Ms::ScoreElement.
// Since a plugin should never need to create an Excerpt
// instance by itself, we don't care for Ownership here.
//---------------------------------------------------------
class Excerpt : public QObject {
Q_OBJECT
/** The score object for this part */
Q_PROPERTY(Ms::PluginAPI::Score* partScore READ partScore)
/** The title of this part */
Q_PROPERTY(QString title READ title)
/// \cond MS_INTERNAL
protected:
Ms::Excerpt* const e;
public:
Excerpt(Ms::Excerpt* _e = nullptr)
: QObject(), e(_e) {}
Excerpt(const Excerpt&) = delete;
Excerpt& operator=(const Excerpt&) = delete;
virtual ~Excerpt() {}
Score* partScore();
QString title() { return e->title(); }
/// \endcond
};
//---------------------------------------------------------
// wrap
/// \cond PLUGIN_API \private \endcond
/// \relates Excerpt
//---------------------------------------------------------
template <class Wrapper, class T>
Wrapper* excerptWrap(T* t)
{
Wrapper* w = t ? new Wrapper(t) : nullptr;
// All wrapper objects should belong to JavaScript code.
QQmlEngine::setObjectOwnership(w, QQmlEngine::JavaScriptOwnership);
return w;
}
extern Excerpt* excerptWrap(Ms::Excerpt* e);
//---------------------------------------------------------
// qml access to containers of Excerpt
//
// QmlExcerptsListAccess provides a convenience interface
// for QQmlListProperty providing read-only access to
// plugins for Excerpts containers.
//
// based on QmlListAccess in scoreelement.h
//---------------------------------------------------------
template <typename T, class Container>
class QmlExcerptsListAccess : public QQmlListProperty<T> {
public:
QmlExcerptsListAccess(QObject* obj, Container& container)
: QQmlListProperty<T>(obj, &container, &count, &at) {};
static int count(QQmlListProperty<T>* l) { return int(static_cast<Container*>(l->data)->size()); }
static T* at(QQmlListProperty<T>* l, int i) { return excerptWrap<T>(static_cast<Container*>(l->data)->at(i)); }
};
/** \cond PLUGIN_API \private \endcond */
template<typename T, class Container>
QmlExcerptsListAccess<T, Container> wrapExcerptsContainerProperty(QObject* obj, Container& c)
{
return QmlExcerptsListAccess<T, Container>(obj, c);
}
} // namespace PluginAPI
} // namespace Ms
#endif
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