File indexing completed on 2024-12-22 04:20:27

 /* This file is part of the TikZKit project.
  *
  * Copyright (C) 2013 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 "EllipsePath.h"
 #include "UndoSetEllipsePos.h"
 #include "Node.h"
 #include "Document.h"
 
 #include <QDebug>
 
 namespace tikz {
 namespace core {
 
 class EllipsePathPrivate
 {
     public:
         EllipsePathPrivate(Document * doc)
             : pos(doc)
         {}
         // meta node this ellipse
         MetaPos pos;
 };
 
 EllipsePath::EllipsePath(const Uid & uid)
     : Path(uid)
     , d(new EllipsePathPrivate(uid.document()))
 {
     connect(d->pos.notificationObject(), SIGNAL(changed(tikz::core::MetaPos*)),
             this, SLOT(emitChangedIfNeeded()));
 }
 
 EllipsePath::~EllipsePath()
 {
     delete d;
 }
 
 PathType EllipsePath::type() const
 {
     return PathType::Ellipse;
 }
 
 void EllipsePath::deconstruct()
 {
     // just set both the start and end pos to (0, 0).
     // undo (i.e., creating the node again), will then restore the initial
     // connections correctly.
     ConfigTransaction transaction(this);
     setPos(tikz::Pos());
 }
 
 void EllipsePath::detachFromNode(Node * node)
 {
     Q_ASSERT(node != nullptr);
 
     // disconnect from node, if currently attached
     if (d->pos.node() == node) {
         auto newPos = metaPos();
         newPos.setNode(nullptr);
         setMetaPos(newPos);
     }
     Q_ASSERT(d->pos.node() != node);
 }
 
 void EllipsePath::setNode(Node* node)
 {
     auto newPos = metaPos();
     newPos.setNode(node);
     setMetaPos(newPos);
 
     Q_ASSERT(d->pos.node() == node);
 }
 
 Node* EllipsePath::node() const
 {
     return d->pos.node();
 }
 
 tikz::Pos EllipsePath::pos() const
 {
     return d->pos.pos();
 }
 
 void EllipsePath::setPos(const tikz::Pos & pos)
 {
     auto newPos = metaPos();
     newPos.setPos(pos);
     setMetaPos(newPos);
 
     Q_ASSERT(d->pos.pos() == pos);
 }
 
 const tikz::core::MetaPos & EllipsePath::metaPos() const
 {
     return d->pos;
 }
 
 void EllipsePath::setMetaPos(const tikz::core::MetaPos & pos)
 {
     if (d->pos == pos) {
         return;
     }
 
     if (document()->undoActive()) {
         ConfigTransaction transaction(this);
         auto oldNode = node();
         d->pos = pos;
         auto newNode = node();
         if (oldNode != newNode) {
             Q_EMIT nodeChanged(newNode);
         }
     } else {
         document()->addUndoItem(
             new UndoSetEllipsePos(this, pos, document()));
     }
 }
 
 QString EllipsePath::anchor() const
 {
     return d->pos.anchor();
 }
 
 void EllipsePath::setAnchor(const QString & anchor)
 {
     auto newPos = metaPos();
     newPos.setAnchor(anchor);
     setMetaPos(newPos);
 
     Q_ASSERT(d->pos.anchor() == anchor);
 }
 
 }
 }
 
 // kate: indent-width 4; replace-tabs on;