Engauge Digitizer  2
CmdAddScale.cpp
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1 /******************************************************************************************************
2  * (C) 2017 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 "CmdAddScale.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 scale point");
18 
19 CmdAddScale::CmdAddScale (MainWindow &mainWindow,
20  Document &document,
21  const QPointF &posScreen0,
22  const QPointF &posScreen1,
23  double scaleLength,
24  double ordinal0,
25  double ordinal1) :
26  CmdPointChangeBase (mainWindow,
27  document,
28  CMD_DESCRIPTION),
29  m_posScreen0 (posScreen0),
30  m_posScreen1 (posScreen1),
31  m_scaleLength (scaleLength),
32  m_ordinal0 (ordinal0),
33  m_ordinal1 (ordinal1)
34 {
35  LOG4CPP_INFO_S ((*mainCat)) << "CmdAddScale::CmdAddScale"
36  << " posScreen0=" << QPointFToString (posScreen0).toLatin1 ().data ()
37  << " posScreen1=" << QPointFToString (posScreen1).toLatin1 ().data ()
38  << " scaleLength=" << scaleLength
39  << " ordinal0=" << ordinal0
40  << " ordinal1=" << ordinal1;
41 }
42 
43 CmdAddScale::CmdAddScale (MainWindow &mainWindow,
44  Document &document,
45  const QString &cmdDescription,
46  QXmlStreamReader &reader) :
47  CmdPointChangeBase (mainWindow,
48  document,
49  cmdDescription)
50 {
51  LOG4CPP_INFO_S ((*mainCat)) << "CmdAddScale::CmdAddScale";
52 
53  QXmlStreamAttributes attributes = reader.attributes();
54 
55  if (!attributes.hasAttribute(DOCUMENT_SERIALIZE_SCREEN_X) ||
56  !attributes.hasAttribute(DOCUMENT_SERIALIZE_SCREEN_Y) ||
57  !attributes.hasAttribute(DOCUMENT_SERIALIZE_SCREEN_X1) ||
58  !attributes.hasAttribute(DOCUMENT_SERIALIZE_SCREEN_Y1) ||
59  !attributes.hasAttribute(DOCUMENT_SERIALIZE_SCALE_LENGTH) ||
60  !attributes.hasAttribute(DOCUMENT_SERIALIZE_IDENTIFIER) ||
61  !attributes.hasAttribute(DOCUMENT_SERIALIZE_IDENTIFIER1) ||
62  !attributes.hasAttribute(DOCUMENT_SERIALIZE_ORDINAL) ||
63  !attributes.hasAttribute(DOCUMENT_SERIALIZE_ORDINAL1)) {
64  xmlExitWithError (reader,
65  QString ("Missing attribute(s) %1, %2, %3, %4, %5, %6, %7, %8 and/or %9")
66  .arg (DOCUMENT_SERIALIZE_SCREEN_X)
67  .arg (DOCUMENT_SERIALIZE_SCREEN_Y)
68  .arg (DOCUMENT_SERIALIZE_SCREEN_X1)
69  .arg (DOCUMENT_SERIALIZE_SCREEN_Y1)
70  .arg (DOCUMENT_SERIALIZE_SCALE_LENGTH)
71  .arg (DOCUMENT_SERIALIZE_IDENTIFIER)
72  .arg (DOCUMENT_SERIALIZE_IDENTIFIER1)
73  .arg (DOCUMENT_SERIALIZE_ORDINAL)
74  .arg (DOCUMENT_SERIALIZE_ORDINAL1));
75  }
76 
77  m_posScreen0.setX(attributes.value(DOCUMENT_SERIALIZE_SCREEN_X).toDouble());
78  m_posScreen0.setY(attributes.value(DOCUMENT_SERIALIZE_SCREEN_Y).toDouble());
79  m_posScreen1.setX(attributes.value(DOCUMENT_SERIALIZE_SCREEN_X1).toDouble());
80  m_posScreen1.setY(attributes.value(DOCUMENT_SERIALIZE_SCREEN_Y1).toDouble());
81  m_scaleLength = attributes.value(DOCUMENT_SERIALIZE_SCALE_LENGTH).toDouble();
82  m_identifierAdded0 = attributes.value(DOCUMENT_SERIALIZE_IDENTIFIER).toString();
83  m_identifierAdded1 = attributes.value(DOCUMENT_SERIALIZE_IDENTIFIER1).toString();
84  m_ordinal0 = attributes.value(DOCUMENT_SERIALIZE_ORDINAL).toDouble();
85  m_ordinal1 = attributes.value(DOCUMENT_SERIALIZE_ORDINAL1).toDouble();
86 }
87 
88 CmdAddScale::~CmdAddScale ()
89 {
90 }
91 
92 void CmdAddScale::cmdRedo ()
93 {
94  LOG4CPP_INFO_S ((*mainCat)) << "CmdAddScale::cmdRedo";
95 
96  saveOrCheckPreCommandDocumentStateHash (document ());
97  saveDocumentState (document ());
98  document().addScaleWithGeneratedIdentifier (m_posScreen0,
99  m_posScreen1,
100  m_scaleLength,
101  m_identifierAdded0,
102  m_identifierAdded1,
103  m_ordinal0,
104  m_ordinal1);
105  document().updatePointOrdinals (mainWindow().transformation());
106  mainWindow().updateAfterCommand();
107  saveOrCheckPostCommandDocumentStateHash (document ());
108 }
109 
110 void CmdAddScale::cmdUndo ()
111 {
112  LOG4CPP_INFO_S ((*mainCat)) << "CmdAddScale::cmdUndo";
113 
114  saveOrCheckPostCommandDocumentStateHash (document ());
115  restoreDocumentState (document ());
116  mainWindow().updateAfterCommand();
117  saveOrCheckPreCommandDocumentStateHash (document ());
118 }
119 
120 void CmdAddScale::saveXml (QXmlStreamWriter &writer) const
121 {
122  // For time coordinates, many digits of precision are needed since a typical date is 1,246,870,000 = July 6, 2009
123  // and we want seconds of precision
124  const char FORMAT = 'g';
125  const int PRECISION = 16;
126 
127  writer.writeStartElement(DOCUMENT_SERIALIZE_CMD);
128  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_TYPE, DOCUMENT_SERIALIZE_CMD_ADD_SCALE);
129  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_DESCRIPTION, QUndoCommand::text ());
130  writer.writeAttribute(DOCUMENT_SERIALIZE_SCREEN_X, QString::number (m_posScreen0.x()));
131  writer.writeAttribute(DOCUMENT_SERIALIZE_SCREEN_Y, QString::number (m_posScreen0.y()));
132  writer.writeAttribute(DOCUMENT_SERIALIZE_SCREEN_X1, QString::number (m_posScreen1.x()));
133  writer.writeAttribute(DOCUMENT_SERIALIZE_SCREEN_Y1, QString::number (m_posScreen1.y()));
134  writer.writeAttribute(DOCUMENT_SERIALIZE_SCALE_LENGTH, QString::number (m_scaleLength, FORMAT, PRECISION));
135  writer.writeAttribute(DOCUMENT_SERIALIZE_IDENTIFIER, m_identifierAdded0);
136  writer.writeAttribute(DOCUMENT_SERIALIZE_IDENTIFIER1, m_identifierAdded1);
137  writer.writeAttribute(DOCUMENT_SERIALIZE_ORDINAL, QString::number (m_ordinal0));
138  writer.writeAttribute(DOCUMENT_SERIALIZE_ORDINAL1, QString::number (m_ordinal1));
139  writer.writeEndElement();
140 }
Xml.h
CmdAddScale::cmdRedo
virtual void cmdRedo()
Redo method that is called when QUndoStack is moved one command forward.
Definition: CmdAddScale.cpp:92
xmlExitWithError
void xmlExitWithError(QXmlStreamReader &reader, const QString &message)
Show specified message for an error while reading xml, then quit.
Definition: Xml.cpp:25
CmdAddScale::saveXml
virtual void saveXml(QXmlStreamWriter &writer) const
Save commands as xml for later uploading.
Definition: CmdAddScale.cpp:120
CmdAbstract::document
Document & document()
Return the Document that this command will modify during redo and undo.
Definition: CmdAbstract.cpp:35
CmdAddScale::~CmdAddScale
virtual ~CmdAddScale()
Definition: CmdAddScale.cpp:88
DOCUMENT_SERIALIZE_ORDINAL1
const QString DOCUMENT_SERIALIZE_ORDINAL1
Document::addScaleWithGeneratedIdentifier
void addScaleWithGeneratedIdentifier(const QPointF &posScreen0, const QPointF &posScreen1, double scaleLength, QString &identifier0, QString &identifier1, double ordinal0, double ordinal1)
Add scale with a generated point identifier.
Definition: Document.cpp:228
CmdAddScale::CmdAddScale
CmdAddScale(MainWindow &mainWindow, Document &document, const QPointF &posScreen0, const QPointF &posScreen1, double scaleLength, double ordinal0, double ordinal1)
Constructor for normal creation.
Definition: CmdAddScale.cpp:19
Document
Storage of one imported image and the data attached to that image.
Definition: Document.h:40
DOCUMENT_SERIALIZE_SCALE_LENGTH
const QString DOCUMENT_SERIALIZE_SCALE_LENGTH
Document.h
EngaugeAssert.h
DocumentSerialize.h
DOCUMENT_SERIALIZE_ORDINAL
const QString DOCUMENT_SERIALIZE_ORDINAL
DOCUMENT_SERIALIZE_IDENTIFIER
const QString DOCUMENT_SERIALIZE_IDENTIFIER
DOCUMENT_SERIALIZE_SCREEN_X1
const QString DOCUMENT_SERIALIZE_SCREEN_X1
CmdPointChangeBase::saveDocumentState
void saveDocumentState(const Document &document)
Save the document state for restoration by restoreDocumentState.
Definition: CmdPointChangeBase.cpp:40
CMD_DESCRIPTION
const QString CMD_DESCRIPTION("Add scale point")
MainWindow::updateAfterCommand
void updateAfterCommand()
See GraphicsScene::updateAfterCommand.
Definition: MainWindow.cpp:3240
MainWindow
Main window consisting of menu, graphics scene, status bar and optional toolbars as a Single Document...
Definition: MainWindow.h:90
Logger.h
DOCUMENT_SERIALIZE_SCREEN_Y
const QString DOCUMENT_SERIALIZE_SCREEN_Y
DOCUMENT_SERIALIZE_SCREEN_X
const QString DOCUMENT_SERIALIZE_SCREEN_X
LOG4CPP_INFO_S
#define LOG4CPP_INFO_S(logger)
Definition: convenience.h:18
CmdPointChangeBase
Base class for CmdBase leaf subclasses that involve point additions, deletions and/or modifications.
Definition: CmdPointChangeBase.h:21
DOCUMENT_SERIALIZE_CMD_TYPE
const QString DOCUMENT_SERIALIZE_CMD_TYPE
CmdAbstract::saveOrCheckPostCommandDocumentStateHash
void saveOrCheckPostCommandDocumentStateHash(const Document &document)
Save, when called the first time, a hash value representing the state of the Document.
Definition: CmdAbstract.cpp:102
CmdPointChangeBase::restoreDocumentState
void restoreDocumentState(Document &document) const
Restore the document previously saved by saveDocumentState.
Definition: CmdPointChangeBase.cpp:29
CmdAddScale::cmdUndo
virtual void cmdUndo()
Undo method that is called when QUndoStack is moved one command backward.
Definition: CmdAddScale.cpp:110
CmdAbstract::saveOrCheckPreCommandDocumentStateHash
void saveOrCheckPreCommandDocumentStateHash(const Document &document)
Save, when called the first time, a hash value representing the state of the Document.
Definition: CmdAbstract.cpp:125
mainCat
log4cpp::Category * mainCat
Definition: Logger.cpp:14
MainWindow.h
Document::updatePointOrdinals
void updatePointOrdinals(const Transformation &transformation)
Update point ordinals after point addition/removal or dragging.
Definition: Document.cpp:1066
CmdAbstract::mainWindow
MainWindow & mainWindow()
Return the MainWindow so it can be updated by this command as a last step.
Definition: CmdAbstract.cpp:45
CmdAddScale.h
QtToString.h
DOCUMENT_SERIALIZE_SCREEN_Y1
const QString DOCUMENT_SERIALIZE_SCREEN_Y1
DOCUMENT_SERIALIZE_CMD_DESCRIPTION
const QString DOCUMENT_SERIALIZE_CMD_DESCRIPTION
DOCUMENT_SERIALIZE_CMD
const QString DOCUMENT_SERIALIZE_CMD
QPointFToString
QString QPointFToString(const QPointF &pos)
Definition: QtToString.cpp:17
DOCUMENT_SERIALIZE_IDENTIFIER1
const QString DOCUMENT_SERIALIZE_IDENTIFIER1
DOCUMENT_SERIALIZE_CMD_ADD_SCALE
const QString DOCUMENT_SERIALIZE_CMD_ADD_SCALE
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