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 "Node.h"
 #include "Style.h"
 #include "Document.h"
 #include "Visitor.h"
 #include "MetaPos.h"
 
 #include "UndoSetNodePos.h"
 
 #include <cmath>
 
 #include <QUndoStack>
 #include <QDebug>
 
 namespace tikz {
 namespace core {
 
 class NodePrivate
 {
     public:
         NodePrivate(Document * doc)
             : pos(doc)
         {}
 
         // node position
         MetaPos pos;
 
         // node text
         QString text;
 
         // this node's style
         Uid styleUid;
         Style * style = nullptr;
 };
 
 Node::Node(const Uid & uid)
     : Entity(uid)
     , d(new NodePrivate(uid.document()))
 {
     setStyle(Uid());
 }
 
 Node::~Node()
 {
     if (d->style) {
         delete d->style;
         d->style = nullptr;
     }
     delete d;
 }
 
 tikz::EntityType Node::entityType() const
 {
     return EntityType::Node;
 }
 
 bool Node::accept(Visitor & visitor)
 {
     visitor.visit(this);
     return true;
 }
 
 void Node::loadData(const QJsonObject & json)
 {
     ConfigTransaction transaction(this);
 
     if (json.contains("text")) {
         setText(json["text"].toString());
     }
 
     if (json.contains("pos")) {
         d->pos = MetaPos(json["pos"].toString(), document());
     }
 
     if (json.contains("style")) {
         const Uid styleId(json["style"].toString(), document());
         setStyle(styleId);
     }
 }
 
 QJsonObject Node::saveData() const
 {
     QJsonObject json = Entity::saveData();
 
     json["text"] = d->text;
     json["pos"] = d->pos.toString();
     json["style"] = style()->uid().toString();
 
     return json;
 }
 
 void Node::setPos(const tikz::Pos & pos)
 {
     auto newPos = metaPos();
     newPos.setPos(pos);
     setMetaPos(newPos);
 
     Q_ASSERT(d->pos.pos() == pos);
 }
 
 tikz::Pos Node::pos() const
 {
     return d->pos.pos();
 }
 
 void Node::setMetaPos(const tikz::core::MetaPos & pos)
 {
     if (d->pos == pos) {
         return;
     }
 
     if (document()->undoActive()) {
         ConfigTransaction transaction(this);
         d->pos = pos;
     } else {
         document()->addUndoItem(new UndoSetNodePos(this, pos, document()));
     }
 }
 
 const tikz::core::MetaPos & Node::metaPos() const
 {
     return d->pos;
 }
 
 void Node::setText(const QString& text)
 {
     // only continue when change is required
     if (d->text == text) {
         return;
     }
 
     ConfigTransaction transaction(this);
     d->text = text;
     Q_EMIT textChanged(d->text);
 }
 
 QString Node::text() const
 {
     return d->text;
 }
 
 Style* Node::style() const
 {
     return d->styleUid.isValid() ? d->styleUid.entity<Style>() : d->style;
 }
 
 Uid Node::styleUid() const
 {
     return d->styleUid;
 }
 
 void Node::setStyle(const Uid & styleUid)
 {
     if (!d->styleUid.isValid()) {
         delete d->style;
         d->style = nullptr;
     } else {
         disconnect(d->styleUid.entity<Style>(), SIGNAL(changed()), this, SLOT(emitChangedIfNeeded()));
     }
 
     if (styleUid.isValid()) {
         d->styleUid = styleUid;
     } else {
         d->style = new Style();
         d->style->setParentStyle(document()->style()->uid());
     }
 
     connect(style(), SIGNAL(changed()), this, SLOT(emitChangedIfNeeded()));
 }
 
 }
 }
 
 // kate: indent-width 4; replace-tabs on;