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Displacement.cpp
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1 /* Copyright (C) 2011-2011 National Institute For Space Research (INPE) - Brazil.
2 
3  This file is part of the TerraLib - a Framework for building GIS enabled applications.
4 
5  TerraLib is free software: you can redistribute it and/or modify
6  it under the terms of the GNU Lesser General Public License as published by
7  the Free Software Foundation, either version 3 of the License,
8  or (at your option) any later version.
9 
10  TerraLib is distributed in the hope that it will be useful,
11  but WITHOUT ANY WARRANTY; without even the implied warranty of
12  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  GNU Lesser General Public License for more details.
14 
15  You should have received a copy of the GNU Lesser General Public License
16  along with TerraLib. See COPYING. If not, write to
17  TerraLib Team at <terralib-team@terralib.org>.
18  */
19 
20 /*!
21  \file terralib/serialization/se/Displacement.cpp
22 
23  \brief Support for Displacement serialization.
24 */
25 
26 // TerraLib
27 #include "../../se/Displacement.h"
28 #include "../../xml/Reader.h"
29 #include "../../xml/Writer.h"
30 #include "Displacement.h"
31 #include "ParameterValue.h"
32 #include "Utils.h"
33 
34 // STL
35 #include <cassert>
36 #include <memory>
37 
39 {
40  assert(reader.getNodeType() == te::xml::START_ELEMENT);
41  assert(reader.getElementLocalName() == "Displacement");
42 
43  reader.next();
44 
45  std::auto_ptr<te::se::Displacement> d(new te::se::Displacement);
46 
47  assert(reader.getElementLocalName() == "DisplacementX");
48  reader.next();
49  d->setDisplacementX(ReadParameterValue(reader));
50 
51  assert(reader.getElementLocalName() == "DisplacementY");
52  reader.next();
53  d->setDisplacementY(ReadParameterValue(reader));
54 
55  assert(reader.getNodeType() == te::xml::END_ELEMENT);
56  reader.next();
57 
58  return d.release();
59 }
60 
62 {
63  if(d == 0)
64  return;
65 
66  writer.writeStartElement("se:Displacement");
67 
68  WriteParameterValuePtrHelper("se:DisplacementX", d->getDisplacementX(), writer);
69  WriteParameterValuePtrHelper("se:DisplacementY", d->getDisplacementY(), writer);
70 
71  writer.writeEndElement("se:Displacement");
72 }
TESERIALIZATIONEXPORT te::se::ParameterValue * ReadParameterValue(te::xml::Reader &reader)
Utility methods for Symbology serialization.
A Displacement gives X and Y offset displacements to use for rendering a text label, graphic or other Symbolizer near a point.
Definition: Displacement.h:58
This class models a XML reader object.
Definition: Reader.h:55
void WriteParameterValuePtrHelper(const std::string &elementName, const te::se::ParameterValue *p, te::xml::Writer &writer)
Definition: Utils.cpp:46
virtual bool next()=0
It gets the next event to be read.
const ParameterValue * getDisplacementX() const
const ParameterValue * getDisplacementY() const
virtual void writeStartElement(const std::string &qName)
Definition: Writer.cpp:44
virtual void writeEndElement(const std::string &qName)
Definition: Writer.cpp:156
TESERIALIZATIONEXPORT void Save(const te::fe::Filter *filter, te::xml::Writer &writer)
Definition: Filter.cpp:54
TESERIALIZATIONEXPORT te::se::Displacement * ReadDisplacement(te::xml::Reader &reader)
A Displacement gives X and Y offset displacements to use for rendering a text label, graphic or other Symbolizer near a point.
virtual NodeType getNodeType() const =0
It return the type of node read.
virtual std::string getElementLocalName() const =0
It returns the local part of the element name in the case of an element node.
This class models a XML writer object.
Definition: Writer.h:52