Engauge Digitizer  2
CmdDelete.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 "CmdDelete.h"
8 #include "DataKey.h"
9 #include "Document.h"
10 #include "DocumentSerialize.h"
11 #include "EngaugeAssert.h"
12 #include "ExportToClipboard.h"
13 #include "GraphicsItemType.h"
14 #include "GraphicsView.h"
15 #include "Logger.h"
16 #include "MainWindow.h"
17 #include <QTextStream>
18 #include <QtToString.h>
19 #include <QXmlStreamReader>
20 #include "Xml.h"
21 
22 const QString CMD_DESCRIPTION ("Delete");
23 
25  Document &document,
26  const QStringList &selectedPointIdentifiers) :
27  CmdPointChangeBase (mainWindow,
28  document,
29  CMD_DESCRIPTION)
30 {
31  LOG4CPP_INFO_S ((*mainCat)) << "CmdDelete::CmdDelete"
32  << " selected=" << selectedPointIdentifiers.count ();
33 
34  // Export to clipboard
35  ExportToClipboard exportStrategy;
36  QTextStream strCsv (&m_csv), strHtml (&m_html);
37  exportStrategy.exportToClipboard (selectedPointIdentifiers,
38  mainWindow.transformation(),
39  strCsv,
40  strHtml,
41  document.curveAxes(),
42  document.curvesGraphs(),
43  m_curvesGraphsRemoved);
44 }
45 
48  const QString &cmdDescription,
49  QXmlStreamReader &reader) :
50  CmdPointChangeBase (mainWindow,
51  document,
52  cmdDescription)
53 {
54  LOG4CPP_INFO_S ((*mainCat)) << "CmdDelete::CmdDelete";
55 
56  QXmlStreamAttributes attributes = reader.attributes();
57 
58  if (!attributes.hasAttribute(DOCUMENT_SERIALIZE_TRANSFORM_DEFINED) ||
59  !attributes.hasAttribute(DOCUMENT_SERIALIZE_CSV) ||
60  !attributes.hasAttribute(DOCUMENT_SERIALIZE_HTML)) {
61  xmlExitWithError (reader,
62  QString ("%1 %2, %3 %4 %5")
63  .arg (QObject::tr ("Missing attribute(s)"))
64  .arg (DOCUMENT_SERIALIZE_TRANSFORM_DEFINED)
65  .arg (DOCUMENT_SERIALIZE_CSV)
66  .arg (QObject::tr ("and/or"))
67  .arg (DOCUMENT_SERIALIZE_HTML));
68  }
69 
70  QString defined = attributes.value(DOCUMENT_SERIALIZE_TRANSFORM_DEFINED).toString();
71 
72  m_transformIsDefined = (defined == DOCUMENT_SERIALIZE_BOOL_TRUE);
73  m_csv = attributes.value(DOCUMENT_SERIALIZE_CSV).toString();
74  m_html = attributes.value(DOCUMENT_SERIALIZE_HTML).toString();
75  m_curvesGraphsRemoved.loadXml(reader);
76 }
77 
78 CmdDelete::~CmdDelete ()
79 {
80 }
81 
83 {
84  LOG4CPP_INFO_S ((*mainCat)) << "CmdDelete::cmdRedo";
85 
88  document().removePointsInCurvesGraphs (m_curvesGraphsRemoved);
89 
90  document().updatePointOrdinals (mainWindow().transformation());
93 }
94 
96 {
97  LOG4CPP_INFO_S ((*mainCat)) << "CmdDelete::cmdUndo";
98 
103 }
104 
105 void CmdDelete::saveXml (QXmlStreamWriter &writer) const
106 {
107  writer.writeStartElement(DOCUMENT_SERIALIZE_CMD);
108  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_TYPE, DOCUMENT_SERIALIZE_CMD_DELETE);
109  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_DESCRIPTION, QUndoCommand::text ());
110  writer.writeAttribute(DOCUMENT_SERIALIZE_TRANSFORM_DEFINED,
111  m_transformIsDefined ? DOCUMENT_SERIALIZE_BOOL_TRUE : DOCUMENT_SERIALIZE_BOOL_FALSE);
112  writer.writeAttribute(DOCUMENT_SERIALIZE_CSV, m_csv);
113  writer.writeAttribute(DOCUMENT_SERIALIZE_HTML, m_html);
114  m_curvesGraphsRemoved.saveXml(writer);
115  writer.writeEndElement();
116 }
void loadXml(QXmlStreamReader &reader)
Load from serialized xml post-version 5 file.
virtual void cmdUndo()
Undo method that is called when QUndoStack is moved one command backward.
Definition: CmdDelete.cpp:95
virtual void saveXml(QXmlStreamWriter &writer) const
Save commands as xml for later uploading.
Definition: CmdDelete.cpp:105
CmdDelete(MainWindow &mainWindow, Document &document, const QStringList &selectedPointIdentifiers)
Constructor for normal creation.
Definition: CmdDelete.cpp:24
void restoreDocumentState(Document &document) const
Restore the document previously saved by saveDocumentState.
Transformation transformation() const
Return read-only copy of transformation.
void saveOrCheckPostCommandDocumentStateHash(const Document &document)
Save, when called the first time, a hash value representing the state of the Document.
void saveXml(QXmlStreamWriter &writer) const
Serialize curves.
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.
Definition: CmdDelete.cpp:82
Base class for CmdBase leaf subclasses that involve point additions, deletions and/or modifications...
void removePointsInCurvesGraphs(CurvesGraphs &curvesGraphs)
Remove all points identified in the specified CurvesGraphs. See also addPointsInCurvesGraphs.
Definition: Document.cpp:871
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
Strategy class for exporting to the clipboard. This strategy is external to the Document class so tha...
Document & document()
Return the Document that this command will modify during redo and undo.
Definition: CmdAbstract.cpp:35
const CurvesGraphs & curvesGraphs() const
Make all Curves available, read only, for CmdAbstract classes only.
Definition: Document.cpp:339
const Curve & curveAxes() const
Get method for axis curve.
Definition: Document.cpp:318
void exportToClipboard(const QStringList &selected, const Transformation &transformation, QTextStream &strCsv, QTextStream &strHtml, const Curve &curveAxis, const CurvesGraphs &curvesGraphsAll, CurvesGraphs &curvesGraphsSelected) const
Export, curve-by-curve, raw data points to a string that will be copied to the clipboard.
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.