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qgssinglebandcolordatarenderer.h
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1 /***************************************************************************
2  qgssinglebandcolordatarenderer.h
3  --------------------------------
4  begin : January 2012
5  copyright : (C) 2012 by Marco Hugentobler
6  email : marco at sourcepole dot ch
7  ***************************************************************************/
8 
9 /***************************************************************************
10  * *
11  * This program is free software; you can redistribute it and/or modify *
12  * it under the terms of the GNU General Public License as published by *
13  * the Free Software Foundation; either version 2 of the License, or *
14  * (at your option) any later version. *
15  * *
16  ***************************************************************************/
17 
18 #ifndef QGSSINGLEBANDCOLORDATARENDERER_H
19 #define QGSSINGLEBANDCOLORDATARENDERER_H
20 
21 #include "qgsrasterrenderer.h"
22 
23 class QDomElement;
24 
29 {
30  public:
33  QgsRasterInterface * clone() const;
34 
35  static QgsRasterRenderer* create( const QDomElement& elem, QgsRasterInterface* input );
36 
37  bool setInput( QgsRasterInterface* input );
38 
39  QgsRasterBlock* block( int bandNo, const QgsRectangle & extent, int width, int height );
40 
41  void writeXML( QDomDocument& doc, QDomElement& parentElem ) const;
42 
43  QList<int> usesBands() const;
44 
45  private:
46  int mBand;
47 };
48 
49 #endif // QGSSINGLEBANDCOLORDATARENDERER_H
A rectangle specified with double values.
Definition: qgsrectangle.h:35
virtual QgsRasterBlock * block(int bandNo, const QgsRectangle &extent, int width, int height)=0
Read block of data using given extent and size.
virtual QList< int > usesBands() const
Returns a list of band numbers used by the renderer.
QgsRasterInterface * clone() const =0
Clone itself, create deep copy.
Raster renderer pipe for single band color.
Raster data container.
virtual void writeXML(QDomDocument &doc, QDomElement &parentElem) const
Write base class members to xml.
Base class for processing filters like renderers, reprojector, resampler etc.
virtual bool setInput(QgsRasterInterface *input)
Set input.
Raster renderer pipe that applies colors to a raster.