CmdGuidelineRemoveXT.cpp

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/******************************************************************************************************
 * (C) 2014 markummitchell@github.com. This file is part of Engauge Digitizer, which is released      *
 * under GNU General Public License version 2 (GPLv2) or (at your option) any later version. See file *
 * LICENSE or go to gnu.org/licenses for details. Distribution requires prior written permission.     *
 ******************************************************************************************************/
 
#include "CmdGuidelineRemoveXT.h"
#include "Document.h"
#include "DocumentSerialize.h"
#include "Logger.h"
#include "MainWindow.h"
#include "Xml.h"
 
const QString CMD_DESCRIPTION ("GuidelineRemoveXT");
 
CmdGuidelineRemoveXT::CmdGuidelineRemoveXT(MainWindow &mainWindow,
                                           Document &document,
                                           const QString &identifier,
                                           double valueBefore) :
  CmdAbstract(mainWindow,
              document,
              CMD_DESCRIPTION),
  m_identifier (identifier),
  m_valueBefore (valueBefore)
{
  qCInfo(ENGAUGE_LOG) << "CmdGuidelineRemoveXT::CmdGuidelineRemoveXT";
}
 
CmdGuidelineRemoveXT::CmdGuidelineRemoveXT (MainWindow &mainWindow,
                                            Document &document,
                                            const QString &cmdDescription,
                                            QXmlStreamReader &reader) :
  CmdAbstract (mainWindow,
               document,
               cmdDescription)
{
  qCInfo(ENGAUGE_LOG) << "CmdGuidelineRemoveXT::CmdGuidelineRemoveXT";
 
  QXmlStreamAttributes attributes = reader.attributes();
 
  QStringList requiredAttributesLeaf;
  requiredAttributesLeaf << DOCUMENT_SERIALIZE_IDENTIFIER
                         << DOCUMENT_SERIALIZE_GRAPH_BEFORE;
  leafAndBaseAttributes (attributes,
                         requiredAttributesLeaf,
                         reader);
 
  m_identifier = attributes.value(DOCUMENT_SERIALIZE_IDENTIFIER).toString();
  m_valueBefore = attributes.value(DOCUMENT_SERIALIZE_GRAPH_BEFORE).toDouble();
}
 
CmdGuidelineRemoveXT::~CmdGuidelineRemoveXT ()
{
}
 
void CmdGuidelineRemoveXT::cmdRedo ()
{
  qCInfo(ENGAUGE_LOG) << "CmdGuidelineRemoveXT::cmdRedo"
                              << " identifier=" << m_identifier.toLatin1().data();
 
  restoreState ();
  mainWindow().guidelineRemove (m_identifier);
}
 
void CmdGuidelineRemoveXT::cmdUndo ()
{
  qCInfo(ENGAUGE_LOG) << "CmdGuidelineRemoveXT::cmdUndo"
                              << " identifier=" << m_identifier.toLatin1().data()
                              << " value=" << m_valueBefore;
 
  restoreState ();
  mainWindow().guidelineAddXT (m_identifier,
                               m_valueBefore);
}
 
void CmdGuidelineRemoveXT::saveXml (QXmlStreamWriter &writer) const
{
  writer.writeStartElement(DOCUMENT_SERIALIZE_CMD);
  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_TYPE, DOCUMENT_SERIALIZE_CMD_GUIDELINE_REMOVE_X_T);
  writer.writeAttribute(DOCUMENT_SERIALIZE_CMD_DESCRIPTION, QUndoCommand::text ());
  writer.writeAttribute(DOCUMENT_SERIALIZE_IDENTIFIER, m_identifier);
  writer.writeAttribute(DOCUMENT_SERIALIZE_GRAPH_BEFORE, QString::number (m_valueBefore));
  baseAttributes (writer);
  writer.writeEndElement();
}