TGAHNK YOU C++ VERY COOL

source/common.h

@@ -25,6 +25,9 @@ inline constexpr std::nullopt_t None{std::nullopt};
 template<typename T>
 using Option = std::optional<T>;
 
+template<typename... Ts>
+using Variant = std::variant<Ts...>;
+
 struct Error : public std::runtime_error {
 	using std::runtime_error::runtime_error;
 };
@@ -122,17 +125,20 @@ static inline QDebug operator<<(QDebug debug, std::string const &t) {
 	return debug;
 }
 
-template<typename T>
-static inline QDebug operator<<(QDebug debug, std::unique_ptr<T> const &t) {
-	debug << *t;
-	return debug;
-}
-
 template<typename T0, typename... Ts>
-static inline QDebug operator<<(QDebug debug,
+static inline QDebug operator<<(QDebug debug, Variant<T0, Ts...> const &t) {
-                                std::variant<T0, Ts...> const &t) {
 	std::visit([&](auto &&arg) {debug << arg;}, t);
 	return debug;
 }
 
+template<typename T>
+static inline QDebug operator<<(QDebug debug, Option<T> const &t) {
+	if(t) {
+		debug << *t;
+	} else {
+		debug << "None";
+	}
+	return debug;
+}
+
 // EOF

source/quam/archive.cc

@@ -6,14 +6,13 @@
 #include <QIcon>
 
 namespace Arc {
-
+	Option<ArcType> getArchiveType(std::istream &st) noexcept {
-Option<ArchiveType> getArchiveType(std::istream &st) noexcept {
 		try {
 			auto pos = st.tellg();
 			auto magic = readBytes<4>(st);
 			st.seekg(pos);
-		if(magic == std::array{'P', 'A', 'C', 'K'}) {return ArcPack;}
+			if(magic == std::array{'P', 'A', 'C', 'K'}) {return ArcType::Pack;}
-		if(magic == std::array{'W', 'A', 'D', '2'}) {return ArcWad2;}
+			if(magic == std::array{'W', 'A', 'D', '2'}) {return ArcType::Wad2;}
 		} catch(...) {
 		}
 		return None;
@@ -22,26 +21,27 @@ Option<ArchiveType> getArchiveType(std::istream &st) noexcept {
 	Dir readArchive(std::istream &st) {
 		switch(auto v = getArchiveType(st);
 		       v.has_value() ? *v : throw FileFormatError("not an archive")) {
-		case ArcPack: return readPack(st);
+			case ArcType::Pack: return readPack(st);
-		case ArcWad2: return readWad2(st);
+			case ArcType::Wad2: return readWad2(st);
 		}
 	}
 
-Dir::iterator Dir::findNode(std::string const &name) {
+	Node *Dir::findNode(std::string const &name) {
-	return std::find_if(begin(), end(), [&name](Node const &node) {
+		auto it = std::find_if(begin(), end(), [&name](Node &node) {
 			return node.name == name;
 		});
+		return it != end() ? &*it : nullptr;
 	}
 
 	Node::Node(Dir &&f, std::string &&n, FileType t) :
-	super_type(std::move(f)),
+		superType(std::move(f)),
 		name(std::move(n)),
 		type(t)
 	{
 	}
 
 	Node::Node(File &&f, std::string &&n, FileType t) :
-	super_type(std::move(f)),
+		superType(std::move(f)),
 		name(std::move(n)),
 		type(t)
 	{
@@ -61,11 +61,12 @@ QVariant Model::data(QModelIndex const &index, int role) const {
 			return QVariant{};
 		}
 
-	auto node = static_cast<Node const *>(index.internalPointer());
+		auto node = static_cast<Node *>(index.internalPointer());
+		auto col  = Column(index.column());
 
 		switch(role) {
 			case Qt::DecorationRole:
-			if(index.column() == ColumnName) {
+				if(col == Column::Name) {
 					auto icon =
 						std::holds_alternative<Dir>(*node) ? "folder"
 						                                   : "text-x-generic";
@@ -73,17 +74,19 @@ QVariant Model::data(QModelIndex const &index, int role) const {
 				}
 				break;
 			case Qt::DisplayRole:
-			switch(index.column()) {
+				switch(col) {
-				case ColumnSize:
+					case Column::Size:
 						if(auto file = std::get_if<File>(node)) {
 							return QVariant{QString::number(file->size())};
 						}
 						break;
-				case ColumnType:
+					case Column::Type:
 						return QVariant{tr(enumToString(node->type))};
-				case ColumnName:
+					case Column::Name:
 						return QVariant{tr(node->name.data())};
 				}
+			case Qt::UserRole:
+				return QVariant::fromValue(static_cast<void *>(node));
 			default:
 				break;
 		}
@@ -102,25 +105,25 @@ Qt::ItemFlags Model::flags(QModelIndex const &index) const {
 	}
 
 	QVariant Model::headerData(int section,
-                           Qt::Orientation orientation,
+	                           Qt::Orientation ori,
 	                           int role) const {
-	if(orientation == Qt::Horizontal && role == Qt::DisplayRole) {
+		if(ori == Qt::Horizontal && role == Qt::DisplayRole) {
-		switch(section) {
+			switch(Column(section)) {
-			case ColumnSize: return QVariant{tr("Size")};
+				case Column::Size: return QVariant{tr("Size")};
-			case ColumnType: return QVariant{tr("Type")};
+				case Column::Type: return QVariant{tr("Type")};
-			case ColumnName: return QVariant{tr("Name")};
+				case Column::Name: return QVariant{tr("Name")};
 			}
 		}
 		return QVariant{};
 	}
 
-QModelIndex Model::index(int row, int col, QModelIndex const &parent) const {
+	QModelIndex Model::index(int row,
+	                         int col,
+	                         QModelIndex const &parent) const {
 		if(!m_dir || !hasIndex(row, col, parent) || row > m_dir->size()) {
 			return QModelIndex{};
 		} else {
-		// despite index data being const, this function does not take a const
+			return createIndex(row, col, &m_dir->at(row));
-		// pointer, which is very annoying!
-		return createIndex(row, col, const_cast<Node *>(&m_dir->at(row)));
 		}
 	}
 
@@ -147,7 +150,6 @@ void Model::setDir(Dir *dir) {
 			emit dirChanged(dir);
 		}
 	}
-
 }
 
 // EOF

source/quam/archive.h

@@ -12,10 +12,10 @@ namespace Arc {
 	struct Node;
 	struct Dir;
 
-	enum Column {
+	enum class Column {
-		ColumnSize,
+		Size,
-		ColumnType,
+		Type,
-		ColumnName,
+		Name,
 	};
 	Q_ENUM_NS(Column)
 
@@ -30,28 +30,28 @@ namespace Arc {
 	};
 	Q_ENUM_NS(FileType)
 
-	enum ArchiveType {
+	enum class ArcType {
-		ArcPack,
+		Pack,
-		ArcWad2,
+		Wad2,
 	};
-	Q_ENUM_NS(ArchiveType)
+	Q_ENUM_NS(ArcType)
 
-	Option<ArchiveType> getArchiveType(std::istream &st) noexcept;
+	Option<ArcType> getArchiveType(std::istream &st) noexcept;
 
 	Dir readArchive(std::istream &st);
 
 	struct Dir : public std::vector<Node> {
 		using std::vector<Node>::vector;
 
-		Dir::iterator findNode(std::string const &name);
+		Node *findNode(std::string const &name);
 	};
 
 	struct File : public QByteArray {
 		using QByteArray::QByteArray;
 	};
 
-	struct Node : public std::variant<Dir, File> {
+	struct Node : public Variant<Dir, File> {
-		using super_type = std::variant<Dir, File>;
+		using superType = Variant<Dir, File>;
 
 		Node() = default;
 
@@ -74,13 +74,14 @@ namespace Arc {
 
 		QVariant data(QModelIndex const &index, int role) const override;
 		Qt::ItemFlags flags(QModelIndex const &index) const override;
-		QVariant headerData(int section, Qt::Orientation orientation, int role)
+		QVariant headerData(int section, Qt::Orientation ori, int role)
 			const override;
 		QModelIndex index(int row,
 		                  int col,
 		                  QModelIndex const &parent = QModelIndex())
 			const override;
-		QModelIndex parent(QModelIndex const &index = QModelIndex()) const override;
+		QModelIndex parent(QModelIndex const &index = QModelIndex())
+			const override;
 		int rowCount(QModelIndex const &index = QModelIndex()) const override;
 		int columnCount(QModelIndex const &index = QModelIndex()) const override;
 
@@ -100,4 +101,12 @@ Q_DECLARE_METATYPE(Arc::Dir)
 Q_DECLARE_METATYPE(Arc::File)
 Q_DECLARE_METATYPE(Arc::Node)
 
+static inline QDebug operator<<(QDebug debug, Arc::Node const &t) {
+	debug << "Arc::Node(" << t.name << ", ";
+	std::visit([&](auto &&arg) {debug << arg;},
+	           static_cast<Variant<Arc::Dir, Arc::File>>(t));
+	debug << ")";
+	return debug;
+}
+
 // EOF

source/quam/pack.cc

@@ -59,7 +59,7 @@ static PackEntry readPackEntry(std::istream &st) {
 	return ent;
 }
 
-static void insertFile(Arc::Dir &dir, std::string name, Arc::File file) {
+static void insertFile(Arc::Dir &dir, std::string &name, Arc::File &file) {
 	Option<std::string> next;
 
 	if(auto slash = name.find('/'); slash != std::string::npos) {
@@ -68,18 +68,14 @@ static void insertFile(Arc::Dir &dir, std::string name, Arc::File file) {
 	}
 
 	auto existing = dir.findNode(name);
-
 	if(next) {
-		auto ref =
+		auto &ref = existing ? *existing
-			existing != dir.end()
-				? *existing
 		                     : dir.emplace_back(Arc::Dir{}, std::move(name));
-		insertFile(std::get<Arc::Dir>(ref), *std::move(next), std::move(file));
+		insertFile(std::get<Arc::Dir>(ref), *next, file);
-	} else {
+	} else if(!existing) {
-		if(existing != dir.end()) {
-			throw FileFormatError("duplicate file");
-		}
 		dir.emplace_back(std::move(file), std::move(name));
+	} else {
+		throw FileFormatError("duplicate file");
 	}
 }
 
@@ -91,7 +87,7 @@ Arc::Dir readPack(std::istream &st) {
 
 	for(quint32 i = 0; i < hdr.dirNum; i++) {
 		auto ent = readPackEntry(st);
-		insertFile(root, std::move(ent.name), std::move(ent.file));
+		insertFile(root, ent.name, ent.file);
 	}
 
 	return root;

source/quam/project.cc

@@ -19,7 +19,10 @@ Project::Project(Arc::Dir &&arc, QErrorMessage *errors, QMdiArea *parent) :
 	setAttribute(Qt::WA_DeleteOnClose);
 	showMaximized();
 
-	connect(m_model, &Arc::Model::dirChanged, this, &Project::dirChanged);
+	connect(m_model, &Arc::Model::dirChanged,
+	        this,    &Project::dirChanged);
+	connect(tableView, &QAbstractItemView::doubleClicked,
+	        this,      &Project::viewDoubleClicked);
 
 	m_sorter->setSourceModel(m_model);
 	tableView->setModel(m_sorter);
@@ -33,4 +36,12 @@ void Project::dirChanged(Arc::Dir *) {
 	tableView->resizeColumnsToContents();
 }
 
+void Project::viewDoubleClicked(QModelIndex const &index) {
+	auto node = static_cast<Arc::Node *>(index.data(Qt::UserRole)
+	                                          .value<void *>());
+	if(auto dir = std::get_if<Arc::Dir>(node)) {
+		m_model->setDir(dir);
+	}
+}
+
 // EOF

source/quam/project.h

@@ -22,6 +22,7 @@ public:
 
 private slots:
 	void dirChanged(Arc::Dir *dir);
+	void viewDoubleClicked(QModelIndex const &index);
 
 private:
 	Arc::Dir               m_arc;

source/quam/wad2.cc

@@ -82,11 +82,6 @@ Arc::Dir readWad2(std::istream &st) {
 
 	for(quint32 i = 0; i < hdr.dirNum; i++) {
 		auto ent = readWad2Entry(st);
-		/*
-		if(root.findNode(ent.name) != root.end()) {
-			throw FileFormatError("duplicate file");
-		}
-		*/
 		root.emplace_back(std::move(ent.file), std::move(ent.name), ent.type);
 	}