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 
85  mainWindow().updateSettingsDigitizeCurve(m_modelDigitizeCurveAfter);
87 }
88 
90 {
91  LOG4CPP_INFO_S ((*mainCat)) << "CmdSettingsDigitizeCurve::cmdUndo";
92 
93  mainWindow().updateSettingsDigitizeCurve(m_modelDigitizeCurveBefore);
95 }
96 
97 void CmdSettingsDigitizeCurve::saveXml (QXmlStreamWriter &writer) const
98 {
99  writer.writeStartElement(DOCUMENT_SERIALIZE_CMD);
100  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_TYPE, DOCUMENT_SERIALIZE_CMD_SETTINGS_DIGITIZE_CURVE);
101  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_DESCRIPTION, QUndoCommand::text ());
102  m_modelDigitizeCurveBefore.saveXml (writer);
103  m_modelDigitizeCurveAfter.saveXml(writer);
104  writer.writeEndElement();
105 }
Wrapper around QUndoCommand. This simplifies the more complicated feature set of QUndoCommand.
Definition: CmdAbstract.h:18
virtual void saveXml(QXmlStreamWriter &writer) const
Save entire model as xml into stream.
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.
virtual void loadXml(QXmlStreamReader &reader)
Load model from serialized xml.
void updateSettingsDigitizeCurve(const DocumentModelDigitizeCurve &modelDigitizeCurve)
Update with new curve digitization styles.
CmdSettingsDigitizeCurve(MainWindow &mainWindow, Document &document, const DocumentModelDigitizeCurve &modelDigitizeCurveBefore, const DocumentModelDigitizeCurve &modelDigitizeCurveAfter)
Constructor for normal creation.
Model for DlgSettingsDigitizeCurve and CmdSettingsDigitizeCurve.
MainWindow & mainWindow()
Return the MainWindow so it can be updated by this command as a last step.
Definition: CmdAbstract.cpp:43
void updateAfterCommand()
See GraphicsScene::updateAfterCommand.
Storage of one imported image and the data attached to that image.
Definition: Document.h:40
virtual void saveXml(QXmlStreamWriter &writer) const
Save commands as xml for later uploading.
Document & document()
Return the Document that this command will modify during redo and undo.
Definition: CmdAbstract.cpp:33
Main window consisting of menu, graphics scene, status bar and optional toolbars as a Single Document...
Definition: MainWindow.h:77