Mercurial > hg > svcore
view base/XmlExportable.h @ 1879:652c5360e682
Ensure transforms are populated before instantiateDefaultPluginFor runs - otherwise if we have prior knowledge of a transform id, we can find ourselves trying to instantiate it before the plugin factory has heard of it and e.g. knows which server to use
author | Chris Cannam |
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date | Thu, 25 Jun 2020 12:20:06 +0100 |
parents | d0ef65d8dd89 |
children |
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/* -*- 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 file copyright 2006 Chris Cannam. 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. */ #ifndef SV_XML_EXPORTABLE_H #define SV_XML_EXPORTABLE_H #include <QString> #include "Debug.h" class QTextStream; class XmlExportable { public: enum { // The value NO_ID (-1) is never allocated as an export id NO_ID = -1 }; typedef int ExportId; XmlExportable() : m_exportId(NO_ID) { } virtual ~XmlExportable() { } /** * Return the numerical export identifier for this object. It's * allocated the first time this is called, so objects on which * this is never called do not get allocated one. */ ExportId getExportId() const; /** * Stream this exportable object out to XML on a text stream. */ virtual void toXml(QTextStream &stream, QString indent = "", QString extraAttributes = "") const = 0; /** * Convert this exportable object to XML in a string. The default * implementation calls toXml and returns the result as a string. * Do not override this unless you really know what you're doing. */ virtual QString toXmlString(QString indent = "", QString extraAttributes = "") const; static QString encodeEntities(QString); static QString encodeColour(int r, int g, int b); private: mutable int m_exportId; }; #endif