/usr/include/qgis/qgsrasterrendererwidget.h is in libqgis-dev 2.18.17+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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qgsrasterrendererwidget.h
---------------------------
begin : February 2012
copyright : (C) 2012 by Marco Hugentobler
email : marco at sourcepole dot ch
***************************************************************************/
/***************************************************************************
* *
* 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 QGSRASTERRENDERERWIDGET_H
#define QGSRASTERRENDERERWIDGET_H
#include "qgsrectangle.h"
#include <QWidget>
class QgsRasterLayer;
class QgsRasterRenderer;
class QgsMapCanvas;
/** \ingroup gui
* \class QgsRasterRendererWidget
*/
class GUI_EXPORT QgsRasterRendererWidget: public QWidget
{
Q_OBJECT
public:
//TODO QGIS 3.0 - remove extent parameter, replace with map canvas parameter
QgsRasterRendererWidget( QgsRasterLayer* layer, const QgsRectangle &extent )
: mRasterLayer( layer )
, mExtent( extent )
, mCanvas( nullptr )
{}
virtual ~QgsRasterRendererWidget() {}
enum LoadMinMaxAlgo
{
Estimate,
Actual,
CurrentExtent,
CumulativeCut // 2 - 98% cumulative cut
};
virtual QgsRasterRenderer* renderer() = 0;
void setRasterLayer( QgsRasterLayer* layer ) { mRasterLayer = layer; }
const QgsRasterLayer* rasterLayer() const { return mRasterLayer; }
/** Sets the map canvas associated with the widget. This allows the widget to retrieve the current
* map extent and other properties from the canvas.
* @param canvas map canvas
* @see mapCanvas()
* @note added in QGIS 2.16
*/
virtual void setMapCanvas( QgsMapCanvas* canvas );
/** Returns the map canvas associated with the widget.
* @see setMapCanvas()
* @see canvasExtent()
* @note added in QGIS 2.16
*/
QgsMapCanvas* mapCanvas();
virtual QString min( int index = 0 ) { Q_UNUSED( index ); return QString(); }
virtual QString max( int index = 0 ) { Q_UNUSED( index ); return QString(); }
virtual void setMin( const QString& value, int index = 0 ) { Q_UNUSED( index ); Q_UNUSED( value ); }
virtual void setMax( const QString& value, int index = 0 ) { Q_UNUSED( index ); Q_UNUSED( value ); }
virtual QString stdDev() { return QString(); }
virtual void setStdDev( const QString& value ) { Q_UNUSED( value ); }
virtual int selectedBand( int index = 0 ) { Q_UNUSED( index ); return -1; }
signals:
/**
* Emitted when something on the widget has changed.
* All widgets will fire this event to notify of an internal change.
*/
void widgetChanged();
protected:
QgsRasterLayer* mRasterLayer;
/** Returns a band name for display. First choice is color name, otherwise band number*/
QString displayBandName( int band ) const;
/** Current extent */
QgsRectangle mExtent;
//! Associated map canvas
QgsMapCanvas* mCanvas;
};
#endif // QGSRASTERRENDERERWIDGET_H
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