QGIS API Documentation  3.13.0-Master (788156190c)
qgsrasterfilewritertask.h
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1 /***************************************************************************
2  qgsrasterfilewritertask.h
3  -------------------------
4  begin : April 2017
5  copyright : (C) 2017 by Nyall Dawson
6  email : nyall dot dawson at gmail dot com
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 QGSRASTERFILEWRITERTASK_H
19 #define QGSRASTERFILEWRITERTASK_H
20 
21 #include "qgis_core.h"
22 #include "qgstaskmanager.h"
23 #include "qgsrasterfilewriter.h"
25 #include "qgsrasterinterface.h"
26 #include "qgsrasterpipe.h"
27 
38 class CORE_EXPORT QgsRasterFileWriterTask : public QgsTask
39 {
40  Q_OBJECT
41 
42  public:
43 
51  Q_DECL_DEPRECATED QgsRasterFileWriterTask( const QgsRasterFileWriter &writer, QgsRasterPipe *pipe SIP_TRANSFER,
52  int columns, int rows,
53  const QgsRectangle &outputExtent,
55 
56 
65  int columns, int rows,
66  const QgsRectangle &outputExtent,
68  const QgsCoordinateTransformContext &transformContext
69  );
70 
71  void cancel() override;
72 
73  signals:
74 
79  void writeComplete( const QString &outputUrl );
80 
86  void errorOccurred( int error );
87 
94  void errorOccurred( int error, const QString &errorMessage );
95 
96  protected:
97 
98  bool run() override;
99  void finished( bool result ) override;
100 
101  private:
102 
103  QgsRasterFileWriter mWriter;
104  int mRows = 0;
105  int mColumns = 0;
106  QgsRectangle mExtent;
108  std::unique_ptr< QgsRasterPipe > mPipe;
109 
110  QString mDestFileName;
111 
112  std::unique_ptr< QgsRasterBlockFeedback > mFeedback;
113 
115 
116  QgsCoordinateTransformContext mTransformContext;
117 };
118 
119 #endif //QGSRASTERFILEWRITERTASK_H
QgsRasterFileWriter::NoError
@ NoError
Definition: qgsrasterfilewriter.h:49
QgsCoordinateTransformContext
Definition: qgscoordinatetransformcontext.h:57
qgsrasterpipe.h
qgstaskmanager.h
qgscoordinatetransformcontext.h
crs
const QgsCoordinateReferenceSystem & crs
Definition: qgswfsgetfeature.cpp:105
QgsRasterPipe
Definition: qgsrasterpipe.h:46
QgsRectangle
Definition: qgsrectangle.h:41
QgsRasterFileWriter::WriterError
WriterError
Definition: qgsrasterfilewriter.h:47
QgsTask::finished
virtual void finished(bool result)
If the task is managed by a QgsTaskManager, this will be called after the task has finished (whether ...
Definition: qgstaskmanager.h:279
qgsrasterfilewriter.h
SIP_DEPRECATED
#define SIP_DEPRECATED
Definition: qgis_sip.h:106
QgsTask::cancel
virtual void cancel()
Notifies the task that it should terminate.
Definition: qgstaskmanager.cpp:90
qgsrasterinterface.h
SIP_TRANSFER
#define SIP_TRANSFER
Definition: qgis_sip.h:36
QgsCoordinateReferenceSystem
Definition: qgscoordinatereferencesystem.h:209
QgsRasterFileWriter
Definition: qgsrasterfilewriter.h:39
QgsTask::run
virtual bool run()=0
Performs the task's operation.
QgsRasterFileWriterTask
Definition: qgsrasterfilewritertask.h:38
QgsTask
Abstract base class for long running background tasks. Tasks can be controlled directly,...
Definition: qgstaskmanager.h:52