view plugin/PluginIdentifier.cpp @ 1376:d9511f9e04d7 dev/refactor-piper-related

Introduce some POD structs for describing an external server application and the desired libraries to load from it, and disambiguating between empty list request and invalid list request. This allows for overriding PiperVampPluginFactory behaviour for using a PluginScan to populate the list request.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

/*
   This is a modified version of a source file from the 
   Rosegarden MIDI and audio sequencer and notation editor.
   This file copyright 2000-2006 Chris Cannam and QMUL.
*/

#include "PluginIdentifier.h"
#include <iostream>
#include <QFileInfo>

QString
PluginIdentifier::createIdentifier(QString type,
				   QString soName,
				   QString label)
{
    QString identifier = type + ":" + QFileInfo(soName).baseName() + ":" + label;
    return identifier;
}

QString
PluginIdentifier::canonicalise(QString identifier)
{
    QString type, soName, label;
    parseIdentifier(identifier, type, soName, label);
    return createIdentifier(type, soName, label);
}

void
PluginIdentifier::parseIdentifier(QString identifier,
				  QString &type,
				  QString &soName,
				  QString &label)
{
    type = identifier.section(':', 0, 0);
    soName = identifier.section(':', 1, 1);
    label = identifier.section(':', 2);
}

bool
PluginIdentifier::areIdentifiersSimilar(QString id1, QString id2)
{
    QString type1, type2, soName1, soName2, label1, label2;

    parseIdentifier(id1, type1, soName1, label1);
    parseIdentifier(id2, type2, soName2, label2);

    if (type1 != type2 || label1 != label2) return false;

    bool similar = (soName1.section('/', -1).section('.', 0, 0) ==
		    soName2.section('/', -1).section('.', 0, 0));

    return similar;
}

QString
PluginIdentifier::BUILTIN_PLUGIN_SONAME = "_builtin";

QString
PluginIdentifier::RESERVED_PROJECT_DIRECTORY_KEY = "__QMUL__:__RESERVED__:ProjectDirectoryKey";