/usr/include/qgis/qgslayertreelayer.h is in libqgis-dev 2.8.6+dfsg-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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qgslayertreelayer.h
--------------------------------------
Date : May 2014
Copyright : (C) 2014 by Martin Dobias
Email : wonder dot sk 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 QGSLAYERTREELAYER_H
#define QGSLAYERTREELAYER_H
#include "qgslayertreenode.h"
class QgsMapLayer;
/**
* Layer tree node points to a map layer.
*
* When using with existing QgsMapLayer instance, it is expected that the layer
* has been registered in QgsMapLayerRegistry earlier.
*
* The node can exist also without a valid instance of a layer (just ID). That
* means the referenced layer does not need to be loaded in order to use it
* in layer tree. In such case, the node will start listening to map layer
* registry updates in expectation that the layer (identified by its ID) will
* be loaded later.
*
* A map layer is supposed to be present in one layer tree just once. It is
* however possible that temporarily a layer exists in one tree more than just
* once, e.g. while reordering items with drag and drop.
*
* @note added in 2.4
*/
class CORE_EXPORT QgsLayerTreeLayer : public QgsLayerTreeNode
{
Q_OBJECT
public:
explicit QgsLayerTreeLayer( QgsMapLayer* layer );
QgsLayerTreeLayer( const QgsLayerTreeLayer& other );
explicit QgsLayerTreeLayer( QString layerId, QString name = QString() );
QString layerId() const { return mLayerId; }
QgsMapLayer* layer() const { return mLayer; }
QString layerName() const;
void setLayerName( const QString& n );
Qt::CheckState isVisible() const { return mVisible; }
void setVisible( Qt::CheckState visible );
static QgsLayerTreeLayer* readXML( QDomElement& element );
virtual void writeXML( QDomElement& parentElement ) override;
virtual QString dump() const override;
virtual QgsLayerTreeNode* clone() const override;
protected slots:
void registryLayersAdded( QList<QgsMapLayer*> layers );
void registryLayersWillBeRemoved( const QStringList& layerIds );
signals:
//! emitted when a previously unavailable layer got loaded
void layerLoaded();
//! emitted when a previously available layer got unloaded (from layer registry)
//! @note added in 2.6
void layerWillBeUnloaded();
protected:
void attachToLayer();
QString mLayerId;
QString mLayerName; // only used if layer does not exist
QgsMapLayer* mLayer; // not owned! may be null
Qt::CheckState mVisible;
};
#endif // QGSLAYERTREELAYER_H
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