Engauge Digitizer  2
CmdAddPointAxis.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 "CmdAddPointAxis.h"
8 #include "Document.h"
9 #include "DocumentSerialize.h"
10 #include "EngaugeAssert.h"
11 #include "Logger.h"
12 #include "MainWindow.h"
13 #include "QtToString.h"
14 #include <QXmlStreamReader>
15 #include "Xml.h"
16 
17 const QString CMD_DESCRIPTION ("Add axis point");
18 
20  Document &document,
21  const QPointF &posScreen,
22  const QPointF &posGraph,
23  double ordinal,
24  bool isXOnly) :
25  CmdPointChangeBase (mainWindow,
26  document,
27  CMD_DESCRIPTION),
28  m_posScreen (posScreen),
29  m_posGraph (posGraph),
30  m_ordinal (ordinal),
31  m_isXOnly (isXOnly)
32 {
33  LOG4CPP_INFO_S ((*mainCat)) << "CmdAddPointAxis::CmdAddPointAxis"
34  << " posScreen=" << QPointFToString (posScreen).toLatin1 ().data ()
35  << " posGraph=" << QPointFToString (posGraph).toLatin1 ().data ()
36  << " ordinal=" << ordinal;
37 }
38 
41  const QString &cmdDescription,
42  QXmlStreamReader &reader) :
43  CmdPointChangeBase (mainWindow,
44  document,
45  cmdDescription)
46 {
47  LOG4CPP_INFO_S ((*mainCat)) << "CmdAddPointAxis::CmdAddPointAxis";
48 
49  QXmlStreamAttributes attributes = reader.attributes();
50 
51  if (!attributes.hasAttribute(DOCUMENT_SERIALIZE_SCREEN_X) ||
52  !attributes.hasAttribute(DOCUMENT_SERIALIZE_SCREEN_Y) ||
53  !attributes.hasAttribute(DOCUMENT_SERIALIZE_GRAPH_X) ||
54  !attributes.hasAttribute(DOCUMENT_SERIALIZE_GRAPH_Y) ||
55  !attributes.hasAttribute(DOCUMENT_SERIALIZE_IDENTIFIER) ||
56  !attributes.hasAttribute(DOCUMENT_SERIALIZE_ORDINAL) ||
57  !attributes.hasAttribute(DOCUMENT_SERIALIZE_POINT_IS_X_ONLY)) {
58  xmlExitWithError (reader,
59  QString ("Missing attribute(s) %1, %2, %3, %4, %5, %6 and/or %7")
60  .arg (DOCUMENT_SERIALIZE_SCREEN_X)
61  .arg (DOCUMENT_SERIALIZE_SCREEN_Y)
62  .arg (DOCUMENT_SERIALIZE_GRAPH_X)
63  .arg (DOCUMENT_SERIALIZE_GRAPH_Y)
64  .arg (DOCUMENT_SERIALIZE_IDENTIFIER)
65  .arg (DOCUMENT_SERIALIZE_ORDINAL)
66  .arg (DOCUMENT_SERIALIZE_POINT_IS_X_ONLY));
67  }
68 
69  // Boolean values
70  QString isXOnlyValue = attributes.value(DOCUMENT_SERIALIZE_POINT_IS_X_ONLY).toString();
71 
72  m_posScreen.setX(attributes.value(DOCUMENT_SERIALIZE_SCREEN_X).toDouble());
73  m_posScreen.setY(attributes.value(DOCUMENT_SERIALIZE_SCREEN_Y).toDouble());
74  m_posGraph.setX(attributes.value(DOCUMENT_SERIALIZE_GRAPH_X).toDouble());
75  m_posGraph.setY(attributes.value(DOCUMENT_SERIALIZE_GRAPH_Y).toDouble());
76  m_identifierAdded = attributes.value(DOCUMENT_SERIALIZE_IDENTIFIER).toString();
77  m_ordinal = attributes.value(DOCUMENT_SERIALIZE_ORDINAL).toDouble();
78  m_isXOnly = (isXOnlyValue == DOCUMENT_SERIALIZE_BOOL_TRUE);
79 }
80 
81 CmdAddPointAxis::~CmdAddPointAxis ()
82 {
83 }
84 
86 {
87  LOG4CPP_INFO_S ((*mainCat)) << "CmdAddPointAxis::cmdRedo";
88 
92  m_posGraph,
93  m_identifierAdded,
94  m_ordinal,
95  m_isXOnly);
96  document().updatePointOrdinals (mainWindow().transformation());
99 }
100 
102 {
103  LOG4CPP_INFO_S ((*mainCat)) << "CmdAddPointAxis::cmdUndo";
104 
109 }
110 
111 void CmdAddPointAxis::saveXml (QXmlStreamWriter &writer) const
112 {
113  // For time coordinates, many digits of precision are needed since a typical date is 1,246,870,000 = July 6, 2009
114  // and we want seconds of precision
115  const char FORMAT = 'g';
116  const int PRECISION = 16;
117 
118  writer.writeStartElement(DOCUMENT_SERIALIZE_CMD);
119  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_TYPE, DOCUMENT_SERIALIZE_CMD_ADD_POINT_AXIS);
120  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_DESCRIPTION, QUndoCommand::text ());
121  writer.writeAttribute(DOCUMENT_SERIALIZE_SCREEN_X, QString::number (m_posScreen.x()));
122  writer.writeAttribute(DOCUMENT_SERIALIZE_SCREEN_Y, QString::number (m_posScreen.y()));
123  writer.writeAttribute(DOCUMENT_SERIALIZE_GRAPH_X, QString::number (m_posGraph.x(), FORMAT, PRECISION));
124  writer.writeAttribute(DOCUMENT_SERIALIZE_GRAPH_Y, QString::number (m_posGraph.y(), FORMAT, PRECISION));
125  writer.writeAttribute(DOCUMENT_SERIALIZE_IDENTIFIER, m_identifierAdded);
126  writer.writeAttribute(DOCUMENT_SERIALIZE_ORDINAL, QString::number (m_ordinal));
127  writer.writeAttribute(DOCUMENT_SERIALIZE_POINT_IS_X_ONLY, m_isXOnly ?
128  DOCUMENT_SERIALIZE_BOOL_TRUE :
129  DOCUMENT_SERIALIZE_BOOL_FALSE);
130  writer.writeEndElement();
131 }
CmdAddPointAxis(MainWindow &mainWindow, Document &document, const QPointF &posScreen, const QPointF &posGraph, double ordinal, bool isXOnly)
Constructor for normal creation.
virtual void cmdUndo()
Undo method that is called when QUndoStack is moved one command backward.
void restoreDocumentState(Document &document) const
Restore the document previously saved by saveDocumentState.
void saveOrCheckPostCommandDocumentStateHash(const Document &document)
Save, when called the first time, a hash value representing the state of the Document.
void saveOrCheckPreCommandDocumentStateHash(const Document &document)
Save, when called the first time, a hash value representing the state of the Document.
virtual void cmdRedo()
Redo method that is called when QUndoStack is moved one command forward.
Base class for CmdBase leaf subclasses that involve point additions, deletions and/or modifications...
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
void addPointAxisWithGeneratedIdentifier(const QPointF &posScreen, const QPointF &posGraph, QString &identifier, double ordinal, bool isXOnly)
Add a single axis point with a generated point identifier.
Definition: Document.cpp:162
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:35
Main window consisting of menu, graphics scene, status bar and optional toolbars as a Single Document...
Definition: MainWindow.h:89
void updatePointOrdinals(const Transformation &transformation)
Update point ordinals after point addition/removal or dragging.
Definition: Document.cpp:1060
void saveDocumentState(const Document &document)
Save the document state for restoration by restoreDocumentState.