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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
// Description: This is the abstract base class for all paginating layouts.
// It provides default implementations for the asynchronous
// versions of GetPage and ComputePageCount.
//
using System.Windows; // Size
using System.Windows.Documents; // DocumentPaginator
namespace MS.Internal.Documents
{
/// <summary>
/// This is the abstract base class for all paginating layouts. It
/// provides default implementations for the asynchronous versions of
/// GetPage and ComputePageCount.
/// </summary>
internal class FixedDocumentPaginator : DynamicDocumentPaginator, IServiceProvider
{
//-------------------------------------------------------------------
//
// Constructors
//
//-------------------------------------------------------------------
#region Constructors
/// <summary>
/// Constructor
/// </summary>
internal FixedDocumentPaginator(FixedDocument document)
{
_document = document;
}
#endregion Constructors
//-------------------------------------------------------------------
//
// Public Methods
//
//-------------------------------------------------------------------
#region Public Methods
/// <summary>
/// <see cref="DocumentPaginator.GetPage"/>
/// </summary>
public override DocumentPage GetPage(int pageNumber)
{
return _document.GetPage(pageNumber);
}
/// <summary>
/// <see cref="DocumentPaginator.GetPageAsync(int,object)"/>
/// </summary>
public override void GetPageAsync(int pageNumber, object userState)
{
_document.GetPageAsync(pageNumber, userState);
}
/// <summary>
/// <see cref="DocumentPaginator.CancelAsync"/>
/// </summary>
public override void CancelAsync(object userState)
{
_document.CancelAsync(userState);
}
/// <summary>
/// <see cref="DynamicDocumentPaginator.GetPageNumber"/>
/// </summary>
public override int GetPageNumber(ContentPosition contentPosition)
{
return _document.GetPageNumber(contentPosition);
}
/// <summary>
/// <see cref="DynamicDocumentPaginator.GetPagePosition"/>
/// </summary>
public override ContentPosition GetPagePosition(DocumentPage page)
{
return _document.GetPagePosition(page);
}
/// <summary>
/// <see cref="DynamicDocumentPaginator.GetObjectPosition"/>
/// </summary>
public override ContentPosition GetObjectPosition(Object o)
{
return _document.GetObjectPosition(o);
}
#endregion Public Methods
//-------------------------------------------------------------------
//
// Public Properties
//
//-------------------------------------------------------------------
#region Public Properties
/// <summary>
/// <see cref="DocumentPaginator.IsPageCountValid"/>
/// </summary>
public override bool IsPageCountValid
{
get { return _document.IsPageCountValid; }
}
/// <summary>
/// <see cref="DocumentPaginator.PageCount"/>
/// </summary>
public override int PageCount
{
get { return _document.PageCount; }
}
/// <summary>
/// <see cref="DocumentPaginator.PageSize"/>
/// </summary>
public override Size PageSize
{
get { return _document.PageSize; }
set { _document.PageSize = value; }
}
/// <summary>
/// <see cref="DocumentPaginator.Source"/>
/// </summary>
public override IDocumentPaginatorSource Source
{
get { return _document; }
}
#endregion Public Properties
//-------------------------------------------------------------------
//
// Internal Methods
//
//-------------------------------------------------------------------
#region Internal Methods
internal void NotifyGetPageCompleted(GetPageCompletedEventArgs e)
{
OnGetPageCompleted(e);
}
internal void NotifyPaginationCompleted(EventArgs e)
{
OnPaginationCompleted(e);
}
internal void NotifyPaginationProgress(PaginationProgressEventArgs e)
{
OnPaginationProgress(e);
}
internal void NotifyPagesChanged(PagesChangedEventArgs e)
{
OnPagesChanged(e);
}
#endregion Internal Methods
//-------------------------------------------------------------------
//
// Private Fields
//
//-------------------------------------------------------------------
#region Private Fields
private readonly FixedDocument _document;
#endregion Private Fields
//-------------------------------------------------------------------
//
// IServiceProvider Members
//
//-------------------------------------------------------------------
#region IServiceProvider Members
/// <summary>
/// Returns service objects associated with this control.
/// </summary>
/// <param name="serviceType">Specifies the type of service object to get.</param>
object IServiceProvider.GetService(Type serviceType)
{
return ((IServiceProvider)_document).GetService(serviceType);
}
#endregion IServiceProvider Members
}
}
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