71 lines
2.1 KiB
C#

//
// RichTextMarkupItem.cs - the abstract base class from which all Rich Text Format formatting items derive
//
// Author:
// Michael Becker <alcexhim@gmail.com>
//
// Copyright (c) 2011-2020 Mike Becker's Software
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
using System;
namespace UniversalEditor.ObjectModels.RichTextMarkup
{
/// <summary>
/// The abstract base class from which all Rich Text Format formatting items derive.
/// </summary>
public abstract class RichTextMarkupItem : ICloneable
{
public class RichTextMarkupItemCollection
: System.Collections.ObjectModel.Collection<RichTextMarkupItem>
{
private RichTextMarkupItemGroup mvarParent = null;
public RichTextMarkupItemCollection(RichTextMarkupItemGroup parent = null)
{
mvarParent = parent;
}
protected override void InsertItem(int index, RichTextMarkupItem item)
{
base.InsertItem(index, item);
item.Parent = mvarParent;
}
protected override void RemoveItem(int index)
{
this[index].Parent = null;
base.RemoveItem(index);
}
protected override void SetItem(int index, RichTextMarkupItem item)
{
this[index].Parent = null;
base.SetItem(index, item);
item.Parent = mvarParent;
}
protected override void ClearItems()
{
foreach (RichTextMarkupItem item in this)
{
item.Parent = null;
}
base.ClearItems();
}
}
public abstract object Clone();
public RichTextMarkupItemGroup Parent { get; set; }
}
}