Manage libraries and text assets. More...

#include <Librarian.h>

Public Types
enum	Library : quint8 { Aircraft , Routes }
	Type of library. More...

Public Member Functions
	Librarian (QObject *parent=nullptr)
	Default constructor.
Q_INVOKABLE QStringList	entries (Librarian::Library library, const QString &filter=QString())
	Lists all entries in the library whose name contains the string 'filter'.
Q_INVOKABLE bool	matches (const QString &text, const QString &filter)
	Checks if a text matches a filter string, in a fuzzy way.
QStringList	permissiveFilter (const QStringList &input, const QString &filter)
	Filters a QStringList in a fuzzy way.
QString	simplifySpecialChars (const QString &string)
	Simplifies string by transforming and removing special characters.

Static Public Member Functions
static Q_INVOKABLE bool	contains (const Navigation::Aircraft &acft)
	Check if an object exists in the library.
static Q_INVOKABLE bool	contains (const QObject *route)
	Check if a flight route exists in the library.
static Q_INVOKABLE QString	directory (Librarian::Library library)
	Name of the directory containing the given.
static Q_INVOKABLE bool	exists (Librarian::Library library, const QString &baseName)
	Check if an entry with the given name exists in the library.
static Q_INVOKABLE QString	fullPath (Librarian::Library library, const QString &baseName)
	Full path of a library entry.
static Q_INVOKABLE QObject *	get (Librarian::Library library, const QString &baseName)
	Constructs an object from library entry.
static Q_INVOKABLE QString	getStringFromRessource (const QString &name)
	Exposes string stored in QRessource to QML.
static Q_INVOKABLE Units::ByteSize	getStringHashFromRessource (const QString &name)
	Exposes the hash of string stored in QRessource to QML.
static Q_INVOKABLE QString	import (Librarian::Library library, const QString &fileName)
	Import a file into a library.
static Q_INVOKABLE void	remove (Librarian::Library library, const QString &baseName)
	Removes an entry from a library.
static Q_INVOKABLE void	rename (Librarian::Library library, const QString &oldName, const QString &newName)
	Renames an entry in a library.

Detailed Description

Manage libraries and text assets.

This class manages libraries of aircrafts and routes, as well as text assets, and exposes these objects to QML.

Definition at line 39 of file Librarian.h.

Member Enumeration Documentation

◆ Library

enum Librarian::Library : quint8

Type of library.

Enumerator
Aircraft	Aircraft library.
Routes	Flight route library.

Definition at line 65 of file Librarian.h.

Constructor & Destructor Documentation

◆ Librarian()

Librarian::Librarian ( QObject * parent = nullptr )

explicit

Default constructor.

Parameters

parent The standard QObject parent pointer

Member Function Documentation

◆ contains() [1/2]

Q_INVOKABLE bool Librarian::contains ( const Navigation::Aircraft & acft )

staticnodiscard

Check if an object exists in the library.

Parameters

acft	Aircraft object

Returns: True if the aircraft exists in the library.

◆ contains() [2/2]

Q_INVOKABLE bool Librarian::contains ( const QObject * route )

staticnodiscard

Check if a flight route exists in the library.

At the moment, only flight routes are supported.

Parameters

route Pointer to the route

Returns: True if the object is of type Navigation::FlightRoute and exists in the library.

◆ directory()

Q_INVOKABLE QString Librarian::directory ( Librarian::Library library )

staticnodiscard

Name of the directory containing the given.

Parameters

library The library that is accessed

Returns: Name of the directory, without trailing slash

◆ entries()

Q_INVOKABLE QStringList Librarian::entries	(	Librarian::Library	library,
		const QString &	filter = QString() )

Lists all entries in the library whose name contains the string 'filter'.

The check for string containment is done in a fuzzy way.

Parameters

library	The library that is to be searched
filter	String used to filter the list

Returns: A filtered QStringList with the base names of flight routes

See also: permissiveFilter

◆ exists()

Q_INVOKABLE bool Librarian::exists	(	Librarian::Library	library,
		const QString &	baseName )

staticnodiscard

Check if an entry with the given name exists in the library.

Parameters

library	The library that is accessed
baseName	File name, without path and without extension

Returns: True if the file exists

◆ fullPath()

Q_INVOKABLE QString Librarian::fullPath	(	Librarian::Library	library,
		const QString &	baseName )

staticnodiscard

Full path of a library entry.

Parameters

library	The library that is accessed
baseName	Name of the entry, without path and without extension

Returns: Full path of the entry, with extension

◆ get()

Q_INVOKABLE QObject * Librarian::get	(	Librarian::Library	library,
		const QString &	baseName )

staticnodiscard

Constructs an object from library entry.

This method constructs an object from a library entry.

If the entry is a route, the route is construted with aircraft and wind set to nullptr, so that no wind computations are possible. It is, however, possible to export the flight route (for instance to GeoJSON or GPX format).

Ownership is transferred to the caller, so it is up to the caller to delete the flight route once it is no longer used. Note that QML does that automatically.

Parameters

library	The library that is accessed
baseName	File name, without path and without extension

Returns: Pointer to the object, or a nullptr in case of error.

◆ getStringFromRessource()

Q_INVOKABLE QString Librarian::getStringFromRessource ( const QString & name )

static

Exposes string stored in QRessource to QML.

This method reads a string from a file stored in the QRessource system. The method expects that the file contains a string in UTF8 encoding. There are a few special strings that are not read from QRessource, but are stored internally and that will be translated. These are the following.

":text/whatsnew.html" A text that describes new features in the current program version

Parameters

name	Name of the file in the QRessource, such as ":text/bugReport.html"

Returns: File content as a QString

◆ getStringHashFromRessource()

Q_INVOKABLE Units::ByteSize Librarian::getStringHashFromRessource ( const QString & name )

static

Exposes the hash of string stored in QRessource to QML.

This method reads a string from a file stored in the QRessource system. The method expects that the file contains a string in UTF8 encoding.

Parameters

name	Name of the file in the QRessource, such as ":text/bugReport.html"

Returns: Hash of file content

◆ import()

Q_INVOKABLE QString Librarian::import	(	Librarian::Library	library,
		const QString &	fileName )

staticnodiscard

Import a file into a library.

This method imports a file into a library.

Parameters

library	The library to import the file. At the moment, only routs is supported.
fileName	Full file name

Returns: An empty string in case of success, or else a human-readable, translated error message.

◆ matches()

Q_INVOKABLE bool Librarian::matches	(	const QString &	text,
		const QString &	filter )

Checks if a text matches a filter string, in a fuzzy way.

This method splits the filter into words at whitespace. The text matches if it contains every one of these words. The comparison ignores case and special characters, so that "Zürich" matches "u", "Ü", "ù" and "zurich". An empty filter matches every text.

This is the single filter primitive of this app. Use it from QML to filter list models, as in

model: Array.from(SomeSingleton.items).filter((i) => Librarian.matches(i.name, filterField.filter))

Parameters

text	Text that is searched
filter	Filter, possibly consisting of several words

Returns: True if the text matches the filter

◆ permissiveFilter()

QStringList Librarian::permissiveFilter	(	const QStringList &	input,
		const QString &	filter )

Filters a QStringList in a fuzzy way.

This helper method filters a QStringList. It returns a sublist of those entries that match the filter, in the sense of the method matches().

Parameters

input	QStringList that is to be filtered
filter	Filter

Returns: Filteres QStringList

See also: matches

◆ remove()

Q_INVOKABLE void Librarian::remove	(	Librarian::Library	library,
		const QString &	baseName )

static

Removes an entry from a library.

Parameters

library	The library that is accessed
baseName	File name, without path and without extension

◆ rename()

Q_INVOKABLE void Librarian::rename	(	Librarian::Library	library,
		const QString &	oldName,
		const QString &	newName )

static

Renames an entry in a library.

Parameters

library	The library that is accessed
oldName	Name of the file that is to be renamed, without path and without extension
newName	New file name, without path and without extension. A file with that name must not exist in the library

◆ simplifySpecialChars()

QString Librarian::simplifySpecialChars ( const QString & string )

Simplifies string by transforming and removing special characters.

This helper method simplifies a unicode string, by transforming it to QString::NormalizationForm_KD and then removing all 'special' character. The results are cached for better performance.

Parameters

string Input string

Returns: Simplified string

The documentation for this class was generated from the following file:

/home/runner/work/enroute/enroute/src/Librarian.h

Public Types

Public Member Functions

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ Library

Constructor & Destructor Documentation

◆ Librarian()

Member Function Documentation

◆ contains() [1/2]

◆ contains() [2/2]

◆ directory()

◆ entries()

◆ exists()

◆ fullPath()

◆ get()

◆ getStringFromRessource()

◆ getStringHashFromRessource()

◆ import()

◆ matches()

◆ permissiveFilter()

◆ remove()

◆ rename()

◆ simplifySpecialChars()