CmdEditPointGraph Class Reference

Command for editing the graph coordinates of one or more graph points. More...

#include <CmdEditPointGraph.h>

Inheritance diagram for CmdEditPointGraph:

Collaboration diagram for CmdEditPointGraph:

Public Member Functions
	CmdEditPointGraph (MainWindow &mainWindow, Document &document, const QStringList &pointIdentifiers, bool isX, bool isY, double x, double y)
	Constructor for normal creation. More...
	CmdEditPointGraph (MainWindow &mainWindow, Document &document, const QString &cmdDescription, QXmlStreamReader &reader)
	Constructor for parsing error report file xml. More...
virtual	~CmdEditPointGraph ()
virtual void	cmdRedo ()
	Redo method that is called when QUndoStack is moved one command forward. More...
virtual void	cmdUndo ()
	Undo method that is called when QUndoStack is moved one command backward. More...
virtual void	saveXml (QXmlStreamWriter &writer) const
	Save commands as xml for later uploading. More...
Public Member Functions inherited from CmdPointChangeBase
	CmdPointChangeBase (MainWindow &mainWindow, Document &document, const QString &cmdDescription)
	Single constructor. More...
virtual	~CmdPointChangeBase ()
Public Member Functions inherited from CmdAbstract
	CmdAbstract (MainWindow &mainWindow, Document &document, const QString &cmdDescription)
	Single constructor. More...
virtual	~CmdAbstract ()

Additional Inherited Members
Protected Member Functions inherited from CmdPointChangeBase
void	restoreDocumentState (Document &document) const
	Restore the document previously saved by saveDocumentState. More...
void	saveDocumentState (const Document &document)
	Save the document state for restoration by restoreDocumentState. More...
Protected Member Functions inherited from CmdAbstract
Document &	document ()
	Return the Document that this command will modify during redo and undo. More...
const Document &	document () const
	Return a const copy of the Document for non redo/undo interaction. More...
MainWindow &	mainWindow ()
	Return the MainWindow so it can be updated by this command as a last step. More...
void	resetSelection (const PointIdentifiers &pointIdentifiersToSelect)
	Since the set of selected points has probably changed, changed that set back to the specified set. More...
void	saveOrCheckPostCommandDocumentStateHash (const Document &document)
	Save, when called the first time, a hash value representing the state of the Document. More...
void	saveOrCheckPreCommandDocumentStateHash (const Document &document)
	Save, when called the first time, a hash value representing the state of the Document. More...

Detailed Description

Command for editing the graph coordinates of one or more graph points.

The screen coordinates are handled by another command

Definition at line 17 of file CmdEditPointGraph.h.

Constructor & Destructor Documentation

CmdEditPointGraph() [1/2]

CmdEditPointGraph::CmdEditPointGraph	(	MainWindow &	mainWindow,
		Document &	document,
		const QStringList &	pointIdentifiers,
		bool	isX,
		bool	isY,
		double	x,
		double	y
	)

Constructor for normal creation.

Definition at line 20 of file CmdEditPointGraph.cpp.

                                                :
  CmdPointChangeBase (mainWindow,
                      document,
                      CMD_DESCRIPTION),
  m_pointIdentifiers (pointIdentifiers),
  m_isX (isX),
  m_isY (isY),
  m_x (x),
  m_y (y)
{
  LOG4CPP_INFO_S ((*mainCat)) << "CmdEditPointGraph::CmdEditPointGraph point="
                              << pointIdentifiers.join(" ").toLatin1 ().data ()
                              << " x=" << (m_isX ? QString::number (x).toLatin1().data() : "")
                              << " y=" << (m_isY ? QString::number (y).toLatin1().data() : "");
}

CmdEditPointGraph() [2/2]

CmdEditPointGraph::CmdEditPointGraph	(	MainWindow &	mainWindow,
		Document &	document,
		const QString &	cmdDescription,
		QXmlStreamReader &	reader
	)

Constructor for parsing error report file xml.

Definition at line 42 of file CmdEditPointGraph.cpp.

                                                                :
  CmdPointChangeBase (mainWindow,
                      document,
                      cmdDescription)
{
  LOG4CPP_INFO_S ((*mainCat)) << "CmdEditPointGraph::CmdEditPointGraph";
 
  QXmlStreamAttributes attributes = reader.attributes();
 
  if (!attributes.hasAttribute(DOCUMENT_SERIALIZE_EDIT_GRAPH_IS_X) ||
      !attributes.hasAttribute(DOCUMENT_SERIALIZE_EDIT_GRAPH_IS_Y) ||
      !attributes.hasAttribute(DOCUMENT_SERIALIZE_EDIT_GRAPH_X) ||
      !attributes.hasAttribute(DOCUMENT_SERIALIZE_EDIT_GRAPH_Y) ) {
    xmlExitWithError (reader,
                      QString ("%1 %2, %3, %4 %5 %6")
                      .arg (QObject::tr ("Missing attribute(s)"))
                      .arg (DOCUMENT_SERIALIZE_EDIT_GRAPH_IS_X)
                      .arg (DOCUMENT_SERIALIZE_EDIT_GRAPH_IS_Y)
                      .arg (DOCUMENT_SERIALIZE_EDIT_GRAPH_X)
                      .arg (QObject::tr ("and/or"))
                      .arg (DOCUMENT_SERIALIZE_EDIT_GRAPH_Y));
  } else {
 
    // Boolean attributes
    QString isX = attributes.value(DOCUMENT_SERIALIZE_EDIT_GRAPH_IS_X).toString();
    QString isY = attributes.value(DOCUMENT_SERIALIZE_EDIT_GRAPH_IS_Y).toString();
 
    m_isX = (isX == DOCUMENT_SERIALIZE_BOOL_TRUE);
    m_isY = (isY == DOCUMENT_SERIALIZE_BOOL_TRUE);
    m_x = attributes.value(DOCUMENT_SERIALIZE_EDIT_GRAPH_X).toDouble();
    m_y = attributes.value(DOCUMENT_SERIALIZE_EDIT_GRAPH_Y).toDouble();
 
    bool success = true;
    while (loadNextFromReader (reader)) {
 
      if (reader.atEnd() || reader.hasError ()) {
        success = false;
        break;
      }
 
      if ((reader.tokenType() == QXmlStreamReader::EndElement) &
          (reader.name() == DOCUMENT_SERIALIZE_CMD)) {
        break;
      }
 
      // Not done yet
      if ((reader.tokenType() == QXmlStreamReader::StartElement) &&
          (reader.name() == DOCUMENT_SERIALIZE_POINT)) {
 
        // This is an entry that we need to add
        QXmlStreamAttributes attributes = reader.attributes ();
 
        if (attributes.hasAttribute(DOCUMENT_SERIALIZE_IDENTIFIER)) {
 
          m_pointIdentifiers << attributes.value(DOCUMENT_SERIALIZE_IDENTIFIER).toString();
        }
      }
    }
 
    if (!success) {
      reader.raiseError (QObject::tr ("Cannot read graph points"));
    }
  }
}

~CmdEditPointGraph()

CmdEditPointGraph::~CmdEditPointGraph ( )

virtual

Definition at line 110 of file CmdEditPointGraph.cpp.

{
}

Member Function Documentation

cmdRedo()

void CmdEditPointGraph::cmdRedo ( )

virtual

Redo method that is called when QUndoStack is moved one command forward.

Implements CmdAbstract.

Definition at line 114 of file CmdEditPointGraph.cpp.

{
  LOG4CPP_INFO_S ((*mainCat)) << "CmdEditPointGraph::cmdRedo";
 
  saveOrCheckPreCommandDocumentStateHash (document ());
  saveDocumentState (document ());
  document().editPointGraph (m_isX,
                             m_isY,
                             m_x,
                             m_y,
                             m_pointIdentifiers,
                             mainWindow().transformation());
  document().updatePointOrdinals (mainWindow().transformation());
  mainWindow().updateAfterCommand();
  saveOrCheckPostCommandDocumentStateHash (document ());
}

cmdUndo()

void CmdEditPointGraph::cmdUndo ( )

virtual

Undo method that is called when QUndoStack is moved one command backward.

Implements CmdAbstract.

Definition at line 131 of file CmdEditPointGraph.cpp.

{
  LOG4CPP_INFO_S ((*mainCat)) << "CmdEditPointGraph::cmdUndo";
 
  saveOrCheckPostCommandDocumentStateHash (document ());
  restoreDocumentState (document ());
  mainWindow().updateAfterCommand();
  saveOrCheckPreCommandDocumentStateHash (document ());
}

saveXml()

void CmdEditPointGraph::saveXml ( QXmlStreamWriter &  writer ) const

virtual

Save commands as xml for later uploading.

Implements CmdAbstract.

Definition at line 141 of file CmdEditPointGraph.cpp.

{
  writer.writeStartElement(DOCUMENT_SERIALIZE_CMD);
  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_TYPE, DOCUMENT_SERIALIZE_CMD_EDIT_POINT_GRAPH);
  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_DESCRIPTION, QUndoCommand::text ());
  writer.writeAttribute(DOCUMENT_SERIALIZE_EDIT_GRAPH_IS_X, m_isX ?
                          DOCUMENT_SERIALIZE_BOOL_TRUE :
                          DOCUMENT_SERIALIZE_BOOL_FALSE);
  writer.writeAttribute(DOCUMENT_SERIALIZE_EDIT_GRAPH_IS_Y, m_isY ?
                          DOCUMENT_SERIALIZE_BOOL_TRUE :
                          DOCUMENT_SERIALIZE_BOOL_FALSE);
  writer.writeAttribute(DOCUMENT_SERIALIZE_EDIT_GRAPH_X, QString::number (m_x));
  writer.writeAttribute(DOCUMENT_SERIALIZE_EDIT_GRAPH_Y, QString::number (m_y));
 
  for (int index = 0; index < m_pointIdentifiers.count(); index++) {
 
    writer.writeStartElement (DOCUMENT_SERIALIZE_POINT);
    writer.writeAttribute(DOCUMENT_SERIALIZE_IDENTIFIER, m_pointIdentifiers.at (index));
    writer.writeEndElement();
  }
  writer.writeEndElement();
}

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The documentation for this class was generated from the following files:

• Cmd/CmdEditPointGraph.h
• Cmd/CmdEditPointGraph.cpp