File indexing completed on 2024-05-12 04:35:03

 /* This file is part of the TikZKit project.
  *
  * Copyright (C) 2013-2018 Dominik Haumann <dhaumann@kde.org>
  *
  * This library is free software; you can redistribute it and/or modify
  * it under the terms of the GNU Library General Public License as published
  * by the Free Software Foundation, either version 2 of the License, or
  * (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, see
  * <http://www.gnu.org/licenses/>.
  */
 
 #include "UndoSetProperty.h"
 #include "Path.h"
 #include "Document.h"
 #include "PropertyManager.h"
 
 namespace tikz {
 namespace core {
 
 UndoSetProperty::UndoSetProperty(Document * doc)
     : UndoItem("Change Property", doc)
 {
 }
 
 UndoSetProperty::UndoSetProperty(const Uid & entityUid, const QString & propertyName, const QVariant & newValue)
     : UndoItem("Change Property", entityUid.document())
     , m_entityUid(entityUid)
     , m_propertyName(propertyName)
     , m_redoValue(newValue)
 {
     // get path to save data
     auto entity = m_entityUid.entity();
     Q_ASSERT(entity);
 
     auto info = propertyManager().info(propertyName);
     if (info.isResettable()) {
         bool isModified = false;
         const bool ok = QMetaObject::invokeMethod(entity,
                                                   info.modifiedFunction().toLatin1().data(),
                                                   Qt::DirectConnection,
                                                   Q_RETURN_ARG(bool, isModified)
         );
         if (!ok) {
             qDebug() << "Unable to check modified state of property" + m_propertyName;
             entity->setProperty(m_propertyName.toLatin1().data(), m_undoValue);
         }
 
         m_undoValue = (ok && isModified) ? entity->property(propertyName.toLatin1().data()) : QVariant();
     } else {
         m_undoValue = entity->property(propertyName.toLatin1().data());
     }
 }
 
 UndoSetProperty::~UndoSetProperty()
 {
 }
 
 void UndoSetProperty::undo()
 {
     auto entity = m_entityUid.entity();
     Q_ASSERT(entity);
 
     if (m_undoValue.isValid()) {
         entity->setProperty(m_propertyName.toLatin1().data(), m_undoValue);
     } else {
         const auto info = propertyManager().info(m_propertyName);
         const bool ok = QMetaObject::invokeMethod(entity,
                                                   info.resetFunction().toLatin1().data(),
                                                   Qt::DirectConnection
         );
         if (!ok) {
             qDebug() << "Unable to reset property" + m_propertyName;
             entity->setProperty(m_propertyName.toLatin1().data(), m_undoValue);
         }
     }
 }
 
 void UndoSetProperty::redo()
 {
     auto entity = m_entityUid.entity();
     Q_ASSERT(entity);
 
     if (m_redoValue.isValid()) {
         entity->setProperty(m_propertyName.toLatin1().data(), m_redoValue);
     } else {
         const auto info = propertyManager().info(m_propertyName);
         const bool ok = QMetaObject::invokeMethod(entity,
                                                   info.resetFunction().toLatin1().data(),
                                                   Qt::DirectConnection
         );
         if (!ok) {
             qDebug() << "Unable to reset property" + m_propertyName;
             entity->setProperty(m_propertyName.toLatin1().data(), m_redoValue);
         }
     }
 }
 
 bool UndoSetProperty::mergeWith(const UndoItem * command)
 {
     // only merge when command is of correct type
     auto other = static_cast<const UndoSetProperty*>(command);
     if (m_entityUid != other->m_entityUid || m_propertyName != other->m_propertyName) {
         return false;
     }
 
     m_redoValue = other->m_redoValue;
     return true;
 }
 
 void UndoSetProperty::loadData(const QJsonObject & json)
 {
     m_entityUid = Uid(json["uid"].toString(), document());
     //m_redoStyle.load(json["style"].toObject());
 }
 
 QJsonObject UndoSetProperty::saveData() const
 {
     QJsonObject json;
     json["type"] = "entity-set-property";
     json["uid"] = m_entityUid.toString();
 //     json["style"] = m_redoStyle.save();
     return json;
 }
 
 }
 }
 
 // kate: indent-width 4; replace-tabs on;