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;
 19struct NoIntroDB;
 20
 21namespace QGBA {
 22
 23class LibraryLoader;
 24class LibraryModel : public QAbstractItemModel {
 25Q_OBJECT
 26
 27public:
 28	LibraryModel(const QString& path, QObject* parent = nullptr);
 29	virtual ~LibraryModel();
 30
 31	bool entryAt(int row, mLibraryEntry* out) const;
 32	VFile* openVFile(const QModelIndex& index) const;
 33	QString filename(const QModelIndex& index) const;
 34	QString location(const QModelIndex& index) const;
 35
 36	virtual QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
 37	virtual QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
 38
 39	virtual QModelIndex index(int row, int column, const QModelIndex& parent) const override;
 40	virtual QModelIndex parent(const QModelIndex& index) const override;
 41
 42	virtual int columnCount(const QModelIndex& parent = QModelIndex()) const override;
 43	virtual int rowCount(const QModelIndex& parent = QModelIndex()) const override;
 44
 45	void attachGameDB(const NoIntroDB* gameDB);
 46
 47signals:
 48	void doneLoading();
 49
 50public slots:
 51	void loadDirectory(const QString& path);
 52
 53	void constrainBase(const QString& path);
 54	void clearConstraints();
 55
 56private slots:
 57	void directoryLoaded(const QString& path);
 58
 59private:
 60	struct LibraryColumn {
 61		QString name;
 62		std::function<QString(const mLibraryEntry&)> value;
 63	};
 64
 65	class LibraryHandle {
 66	public:
 67		LibraryHandle(mLibrary*, const QString& path = QString());
 68		~LibraryHandle();
 69
 70		mLibrary* const library;
 71		LibraryLoader* const loader;
 72		const QString path;
 73
 74		void ref();
 75		bool deref();
 76
 77	private:
 78		QThread m_loaderThread;
 79		size_t m_ref;
 80	};
 81
 82	LibraryHandle* m_library;
 83	static QMap<QString, LibraryHandle*> s_handles;
 84
 85	mLibraryEntry m_constraints;
 86	QStringList m_queue;
 87
 88	QList<LibraryColumn> m_columns;
 89	static QMap<QString, LibraryColumn> s_columns;
 90};
 91
 92class LibraryLoader : public QObject {
 93Q_OBJECT
 94
 95public:
 96	LibraryLoader(mLibrary* library, QObject* parent = nullptr);
 97
 98public slots:
 99	void loadDirectory(const QString& path);
100
101signals:
102	void directoryLoaded(const QString& path);
103
104private:
105	mLibrary* m_library;
106};
107
108}
109
110#endif