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  • src
textfilesensor.cpp
1 /***************************************************************************
2  * Copyright (C) 2003 by Hans Karlsson *
3  * karlsson.h@home.se *
4  * *
5  * This program is free software; you can redistribute it and/or modify *
6  * it under the terms of the GNU General Public License as published by *
7  * the Free Software Foundation; either version 2 of the License, or *
8  * (at your option) any later version. *
9  ***************************************************************************/
10 #include "textfilesensor.h"
11 #include "tqdom.h"
12 
13 TextFileSensor::TextFileSensor( const TQString &fn, bool iRdf, int interval, const TQString &encoding )
14  : Sensor( interval )
15 {
16  fileName = fn;
17  rdf = iRdf;
18 
19  if( !encoding.isEmpty() )
20  {
21  codec = TQTextCodec::codecForName( encoding.ascii() );
22  if ( codec == 0)
23  codec = TQTextCodec::codecForLocale();
24  }
25  else
26  codec = TQTextCodec::codecForLocale();
27 }
28 
29 TextFileSensor::~TextFileSensor()
30 {}
31 
32 void TextFileSensor::update()
33 {
34  TQValueVector<TQString> lines;
35  TQFile file(fileName);
36  TQString line;
37  if ( file.open(IO_ReadOnly | IO_Translate) )
38  {
39  if (rdf)
40  {
41  TQDomDocument doc;
42  if ( !doc.setContent( &file ) )
43  {
44  file.close();
45  return;
46  }
47  TQDomElement docElem = doc.documentElement();
48  TQDomNode n = docElem.firstChild();
49  if (!n.isNull())
50  {
51  TQDomNodeList titles = docElem.elementsByTagName( "title" );
52  TQDomNodeList links = docElem.elementsByTagName( "link" );
53 
54  uint i;
55  for ( i = 0; i < titles.count(); ++i )
56  {
57  TQDomElement element = titles.item( i ).toElement();
58  lines.push_back(element.text());
59 
60  element = links.item( i ).toElement();
61  lines.push_back(element.text());
62  }
63  }
64  }
65  else
66  {
67  TQTextStream t( &file ); // use a text stream
68  while( (line = t.readLine()) !=0 )
69  {
70  lines.push_back(line);
71  }
72  }
73  file.close();
74  }
75 
76  int lineNbr;
77  SensorParams *sp;
78  Meter *meter;
79 
80  int count = (int) lines.size();
81  TQObjectListIt it( *objList );
82  while (it != 0)
83  {
84  sp = (SensorParams*)(*it);
85  meter = sp->getMeter();
86  lineNbr = (sp->getParam("LINE")).toInt();
87  if ( lineNbr >= 1 && lineNbr <= (int) count )
88  {
89  meter->setValue(lines[lineNbr-1]);
90  }
91  if ( -lineNbr >= 1 && -lineNbr <= (int) count )
92  {
93  meter->setValue(lines[count+lineNbr]);
94  }
95 
96  if ( lineNbr == 0 )
97  {
98  TQString text;
99  for( int i=0; i < count; i++ )
100  {
101  text += lines[i] + "\n";
102  }
103  meter->setValue( text );
104  }
105  ++it;
106  }
107 }
108 
109 #include "textfilesensor.moc"
SensorParams
Hans Karlsson.
Definition: sensorparams.h:31

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