Marble

MarbleDebug.cpp
1 // SPDX-License-Identifier: LGPL-2.1-or-later
2 //
3 // SPDX-FileCopyrightText: 2009 Patrick Spendrin <[email protected]>
4 //
5 
6 #include "MarbleDebug.h"
7 
8 namespace Marble
9 {
10 bool MarbleDebug::m_enabled = false;
11 
12 class NullDevice : public QIODevice
13 {
14 public:
15  NullDevice()
16  {
17  open( QIODevice::WriteOnly );
18  }
19 
20  qint64 readData( char * /*data*/, qint64 /*maxSize*/ ) override
21  {
22  return -1;
23  }
24 
25  qint64 writeData( const char * /*data*/, qint64 maxSize ) override
26  {
27  return maxSize;
28  }
29 };
30 
31 QDebug mDebug()
32 {
33  if ( MarbleDebug::isEnabled() ) {
34  return QDebug( QtDebugMsg );
35  }
36  else {
37  static QIODevice *device = new NullDevice;
38  return QDebug( device );
39  }
40 }
41 
42 bool MarbleDebug::isEnabled()
43 {
44  return MarbleDebug::m_enabled;
45 }
46 
47 void MarbleDebug::setEnabled(bool enabled)
48 {
49  MarbleDebug::m_enabled = enabled;
50 }
51 
52 } // namespace Marble
QIODevice::open
virtual bool open(QIODevice::OpenMode mode)
Marble
Binds a QML item to a specific geodetic location in screen coordinates.
Definition: AbstractDataPlugin.cpp:22
Marble::MarbleDebug::isEnabled
static bool isEnabled()
isEnabled returns whether debug information output is generated
Definition: MarbleDebug.cpp:42
Marble::mDebug
QDebug mDebug()
a function to replace qDebug() in Marble library code
Definition: MarbleDebug.cpp:31
Marble::MarbleDebug::setEnabled
static void setEnabled(bool enabled)
setEnabled Toggle debug information output generation
Definition: MarbleDebug.cpp:47
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