1/* Copyright (c) 2013-2016 Jeffrey Pfau
  2 *
  3 * This Source Code Form is subject to the terms of the Mozilla Public
  4 * License, v. 2.0. If a copy of the MPL was not distributed with this
  5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
  6#ifndef QGBA_LIBRARY_MODEL
  7#define QGBA_LIBRARY_MODEL
  8
  9#include <QAbstractItemModel>
 10#include <QStringList>
 11#include <QThread>
 12
 13#include <mgba/core/library.h>
 14
 15#include <functional>
 16
 17struct VDir;
 18struct VFile;
 19
 20namespace QGBA {
 21
 22class LibraryLoader;
 23class LibraryModel : public QAbstractItemModel {
 24Q_OBJECT
 25
 26public:
 27	LibraryModel(const QString& path, QObject* parent = nullptr);
 28	virtual ~LibraryModel();
 29
 30	bool entryAt(int row, mLibraryEntry* out) const;
 31	VFile* openVFile(const QModelIndex& index) const;
 32	QString filename(const QModelIndex& index) const;
 33	QString location(const QModelIndex& index) const;
 34
 35	virtual QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
 36	virtual QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
 37
 38	virtual QModelIndex index(int row, int column, const QModelIndex& parent) const override;
 39	virtual QModelIndex parent(const QModelIndex& index) const override;
 40
 41	virtual int columnCount(const QModelIndex& parent = QModelIndex()) const override;
 42	virtual int rowCount(const QModelIndex& parent = QModelIndex()) const override;
 43
 44signals:
 45	void doneLoading();
 46
 47public slots:
 48	void loadDirectory(const QString& path);
 49
 50	void constrainBase(const QString& path);
 51	void clearConstraints();
 52
 53private slots:
 54	void directoryLoaded(const QString& path);
 55
 56private:
 57	struct LibraryColumn {
 58		QString name;
 59		std::function<QString(const mLibraryEntry&)> value;
 60	};
 61
 62	class LibraryHandle {
 63	public:
 64		LibraryHandle(mLibrary*, const QString& path = QString());
 65		~LibraryHandle();
 66
 67		mLibrary* const library;
 68		LibraryLoader* const loader;
 69		const QString path;
 70
 71		void ref();
 72		bool deref();
 73
 74	private:
 75		QThread m_loaderThread;
 76		size_t m_ref;
 77	};
 78
 79	LibraryHandle* m_library;
 80	static QMap<QString, LibraryHandle*> s_handles;
 81
 82	mLibraryEntry m_constraints;
 83	QStringList m_queue;
 84
 85	QList<LibraryColumn> m_columns;
 86	static QMap<QString, LibraryColumn> s_columns;
 87};
 88
 89class LibraryLoader : public QObject {
 90Q_OBJECT
 91
 92public:
 93	LibraryLoader(mLibrary* library, QObject* parent = nullptr);
 94
 95public slots:
 96	void loadDirectory(const QString& path);
 97
 98signals:
 99	void directoryLoaded(const QString& path);
100
101private:
102	mLibrary* m_library;
103};
104
105}
106
107#endif