/usr/include/qgis/qgslayerdefinition.h is in libqgis-dev 2.14.11+dfsg-3+deb9u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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qgslayerdefinition.h
---------------------
begin : January 2015
copyright : (C) 2015 by Nathan Woodrow
email : woodrow dot nathan at gmail dot com
***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#ifndef QGSLAYERDEFINITION_H
#define QGSLAYERDEFINITION_H
#include "qgslayertreegroup.h"
/**
* @brief The QgsLayerDefinition class holds generic methods for loading/exporting QLR files.
*
* QLR files are an export of the layer xml including the style and datasource location. There is no link
* to the QLR file once loaded. Consider the QLR file a mini project file for layers and styles. QLR
* files also store the layer tree info for the exported layers, including group information.
*/
class CORE_EXPORT QgsLayerDefinition
{
public:
/** Loads the QLR at path into QGIS. New layers are added to rootGroup and the map layer registry*/
static bool loadLayerDefinition( const QString & path, QgsLayerTreeGroup* rootGroup, QString &errorMessage );
/** Loads the QLR from the XML document. New layers are added to rootGroup and the map layer registry */
static bool loadLayerDefinition( QDomDocument doc, QgsLayerTreeGroup* rootGroup, QString &errorMessage );
/** Export the selected layer tree nodes to a QLR file */
static bool exportLayerDefinition( QString path, const QList<QgsLayerTreeNode*>& selectedTreeNodes, QString &errorMessage );
/** Export the selected layer tree nodes to a QLR-XML document */
static bool exportLayerDefinition( QDomDocument doc, const QList<QgsLayerTreeNode*>& selectedTreeNodes, QString &errorMessage, const QString& relativeBasePath = QString::null );
/**
* Class used to work with layer dependencies stored in a XML project or layer definition file
*/
class CORE_EXPORT DependencySorter
{
public:
/** Constructor
* @param doc The XML document containing maplayer elements
*/
DependencySorter( const QDomDocument& doc );
/** Constructor
* @param fileName The filename where the XML document is stored
*/
DependencySorter( const QString& fileName );
/** Get the layer nodes in an order where they can be loaded incrementally without dependency break */
QVector<QDomNode> sortedLayerNodes() const { return mSortedLayerNodes; }
/** Get the layer IDs in an order where they can be loaded incrementally without dependency break */
QStringList sortedLayerIds() const { return mSortedLayerIds; }
/** Whether some cyclic dependency has been detected */
bool hasCycle() const { return mHasCycle; }
/** Whether some dependency is missing */
bool hasMissingDependency() const { return mHasMissingDependency; }
private:
QVector<QDomNode> mSortedLayerNodes;
QStringList mSortedLayerIds;
bool mHasCycle;
bool mHasMissingDependency;
void init( const QDomDocument& doc );
};
};
#endif // QGSLAYERDEFINITION_H
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