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