Engauge Digitizer  2
CmdSettingsDigitizeCurve.cpp
1 /******************************************************************************************************
2  * (C) 2014 markummitchell@github.com. This file is part of Engauge Digitizer, which is released *
3  * under GNU General Public License version 2 (GPLv2) or (at your option) any later version. See file *
4  * LICENSE or go to gnu.org/licenses for details. Distribution requires prior written permission. *
5  ******************************************************************************************************/
6 
7 #include "CmdSettingsDigitizeCurve.h"
8 #include "Document.h"
9 #include "DocumentSerialize.h"
10 #include "Logger.h"
11 #include "MainWindow.h"
12 #include <QXmlStreamReader>
13 #include "Xml.h"
14 
15 const QString CMD_DESCRIPTION ("Digitize Curve settings");
16 
18  Document &document,
19  const DocumentModelDigitizeCurve &modelDigitizeCurveBefore,
20  const DocumentModelDigitizeCurve &modelDigitizeCurveAfter) :
21  CmdAbstract(mainWindow,
22  document,
23  CMD_DESCRIPTION),
24  m_modelDigitizeCurveBefore (modelDigitizeCurveBefore),
25  m_modelDigitizeCurveAfter (modelDigitizeCurveAfter)
26 {
27  LOG4CPP_INFO_S ((*mainCat)) << "CmdSettingsDigitizeCurve::CmdSettingsDigitizeCurve";
28 }
29 
32  const QString &cmdDescription,
33  QXmlStreamReader &reader) :
34  CmdAbstract (mainWindow,
35  document,
36  cmdDescription)
37 {
38  LOG4CPP_INFO_S ((*mainCat)) << "CmdSettingsDigitizeCurve::CmdSettingsDigitizeCurve";
39 
40  bool success = true;
41 
42  // Read until end of this subtree
43  bool isBefore = true;
44  while ((reader.tokenType() != QXmlStreamReader::EndElement) ||
45  (reader.name() != DOCUMENT_SERIALIZE_CMD)){
46  loadNextFromReader(reader);
47  if (reader.atEnd()) {
48  xmlExitWithError (reader,
49  QString ("%1 %2")
50  .arg (QObject::tr ("Reached end of file before finding end element for"))
51  .arg (DOCUMENT_SERIALIZE_CMD));
52  success = false;
53  break;
54  }
55 
56  if ((reader.tokenType() == QXmlStreamReader::StartElement) &&
57  (reader.name() == DOCUMENT_SERIALIZE_DIGITIZE_CURVE)) {
58 
59  if (isBefore) {
60 
61  m_modelDigitizeCurveBefore.loadXml (reader);
62  isBefore = false;
63 
64  } else {
65 
66  m_modelDigitizeCurveAfter.loadXml (reader);
67 
68  }
69  }
70  }
71 
72  if (!success) {
73  reader.raiseError ("Cannot read digitize curve settings");
74  }
75 }
76 
77 CmdSettingsDigitizeCurve::~CmdSettingsDigitizeCurve ()
78 {
79 }
80 
82 {
83  LOG4CPP_INFO_S ((*mainCat)) << "CmdSettingsDigitizeCurve::cmdRedo";
84 
86  mainWindow().updateSettingsDigitizeCurve(m_modelDigitizeCurveAfter);
89 }
90 
92 {
93  LOG4CPP_INFO_S ((*mainCat)) << "CmdSettingsDigitizeCurve::cmdUndo";
94 
96  mainWindow().updateSettingsDigitizeCurve(m_modelDigitizeCurveBefore);
99 }
100 
101 void CmdSettingsDigitizeCurve::saveXml (QXmlStreamWriter &writer) const
102 {
103  writer.writeStartElement(DOCUMENT_SERIALIZE_CMD);
104  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_TYPE, DOCUMENT_SERIALIZE_CMD_SETTINGS_DIGITIZE_CURVE);
105  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_DESCRIPTION, QUndoCommand::text ());
106  m_modelDigitizeCurveBefore.saveXml (writer);
107  m_modelDigitizeCurveAfter.saveXml(writer);
108  writer.writeEndElement();
109 }
virtual void saveXml(QXmlStreamWriter &writer) const
Save entire model as xml into stream.
Wrapper around QUndoCommand. This simplifies the more complicated feature set of QUndoCommand.
Definition: CmdAbstract.h:19
virtual void cmdRedo()
Redo method that is called when QUndoStack is moved one command forward.
virtual void cmdUndo()
Undo method that is called when QUndoStack is moved one command backward.
void saveOrCheckPostCommandDocumentStateHash(const Document &document)
Save, when called the first time, a hash value representing the state of the Document.
virtual void loadXml(QXmlStreamReader &reader)
Load model from serialized xml.
void updateSettingsDigitizeCurve(const DocumentModelDigitizeCurve &modelDigitizeCurve)
Update with new curve digitization styles.
virtual void saveXml(QXmlStreamWriter &writer) const
Save commands as xml for later uploading.
CmdSettingsDigitizeCurve(MainWindow &mainWindow, Document &document, const DocumentModelDigitizeCurve &modelDigitizeCurveBefore, const DocumentModelDigitizeCurve &modelDigitizeCurveAfter)
Constructor for normal creation.
Model for DlgSettingsDigitizeCurve and CmdSettingsDigitizeCurve.
void saveOrCheckPreCommandDocumentStateHash(const Document &document)
Save, when called the first time, a hash value representing the state of the Document.
MainWindow & mainWindow()
Return the MainWindow so it can be updated by this command as a last step.
Definition: CmdAbstract.cpp:45
void updateAfterCommand()
See GraphicsScene::updateAfterCommand.
Storage of one imported image and the data attached to that image.
Definition: Document.h:41
Document & document()
Return the Document that this command will modify during redo and undo.
Definition: CmdAbstract.cpp:35
Main window consisting of menu, graphics scene, status bar and optional toolbars as a Single Document...
Definition: MainWindow.h:89