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

 /* This file is part of the TikZKit project.
  *
  * Copyright (C) 2015 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 "UndoGroup.h"
 #include "UndoItem.h"
 #include "UndoManager.h"
 
 #include <QDebug>
 
 namespace tikz {
 namespace core {
 
 class UndoGroupPrivate
 {
 public:
     /**
      * Pointer to the undo manager.
      */
     UndoManager * manager = nullptr;
 
     /**
      * Name of the undo group.
      */
     QString text;
 
     /**
      * list of items contained
      */
     QList<UndoItem *> items;
 };
 
 UndoGroup::UndoGroup(const QString & text, UndoManager * manager)
     : d(new UndoGroupPrivate())
 {
     d->manager = manager;
     d->text = text;
 }
 
 UndoGroup::~UndoGroup()
 {
     qDeleteAll(d->items);
 
     delete d;
 }
 
 Document * UndoGroup::document() const
 {
     return d->manager->document();
 }
 
 QString UndoGroup::text() const
 {
     return d->text;
 }
 
 bool UndoGroup::isEmpty() const
 {
     return d->items.isEmpty();
 }
 
 void UndoGroup::undo()
 {
     for (int i = d->items.size() - 1; i >= 0; --i) {
         d->items[i]->undo();
     }
 }
 
 void UndoGroup::redo()
 {
     for (int i = 0; i < d->items.size(); ++i) {
         d->items[i]->redo();
     }
 }
 
 void UndoGroup::addItem(UndoItem *item)
 {
     // only try merge, if undo item id's match
     const int lastUndoId = d->items.isEmpty() ? -1 : d->items.last()->id();
     const int newUndoId = item->id();
     if (lastUndoId >= 0 && lastUndoId == newUndoId && d->items.last()->mergeWith(item)) {
         delete item;
     } else {
         // add to this undo group
         d->items.append(item);
 
         // associate the UndoItem's group with this UndoGroup
         item->setGroup(this);
     }
 }
 
 QList<UndoItem *> UndoGroup::undoItems() const
 {
     return d->items;
 }
 
 int UndoGroup::count() const
 {
     return d->items.count();
 }
 
 void UndoGroup::printTree()
 {
     QString str = "group: " + text();
     for (auto item : d->items) {
         str += " -->" + item->text();
     }
     qDebug() << str;
 }
 
 }
 }
 
 // kate: indent-width 4; replace-tabs on;