93 lines
3.1 KiB
C#
93 lines
3.1 KiB
C#
|
#region PDFsharp - A .NET library for processing PDF
|
|||
|
|
//
|
|||
|
|
// Authors:
|
|||
|
|
// Thomas Hövel
|
|||
|
|
//
|
|||
|
|
// Copyright (c) 2005-2017 empira Software GmbH, Cologne Area (Germany)
|
|||
|
|
//
|
|||
|
|
// http://www.pdfsharp.com
|
|||
|
|
// http://sourceforge.net/projects/pdfsharp
|
|||
|
|
//
|
|||
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|||
|
|
// copy of this software and associated documentation files (the "Software"),
|
|||
|
|
// to deal in the Software without restriction, including without limitation
|
|||
|
|
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|||
|
|
// and/or sell copies of the Software, and to permit persons to whom the
|
|||
|
|
// Software is furnished to do so, subject to the following conditions:
|
|||
|
|
//
|
|||
|
|
// The above copyright notice and this permission notice shall be included
|
|||
|
|
// in all copies or substantial portions of the Software.
|
|||
|
|
//
|
|||
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|||
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|||
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|||
|
|
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|||
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|||
|
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|||
|
|
// DEALINGS IN THE SOFTWARE.
|
|||
|
|
#endregion
|
|||
|
|
|
|||
|
|
using System.Collections.Generic;
|
|||
|
|
using System.IO;
|
|||
|
|
using PdfSharp.Pdf;
|
|||
|
|
|
|||
|
|
namespace PdfSharp.Drawing.Internal
|
|||
|
|
{
|
|||
|
|
/// <summary>
|
|||
|
|
/// The class that imports images of various formats.
|
|||
|
|
/// </summary>
|
|||
|
|
internal class ImageImporter
|
|||
|
|
{
|
|||
|
|
// TODO Make a singleton!
|
|||
|
|
/// <summary>
|
|||
|
|
/// Gets the image importer.
|
|||
|
|
/// </summary>
|
|||
|
|
public static ImageImporter GetImageImporter()
|
|||
|
|
{
|
|||
|
|
return new ImageImporter();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private ImageImporter()
|
|||
|
|
{
|
|||
|
|
_importers.Add(new ImageImporterJpeg());
|
|||
|
|
_importers.Add(new ImageImporterBmp());
|
|||
|
|
// TODO: Special importer for PDF? Or dealt with at a higher level?
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// Imports the image.
|
|||
|
|
/// </summary>
|
|||
|
|
public ImportedImage ImportImage(Stream stream, PdfDocument document)
|
|||
|
|
{
|
|||
|
|
StreamReaderHelper helper = new StreamReaderHelper(stream);
|
|||
|
|
|
|||
|
|
// Try all registered importers to see if any of them can handle the image.
|
|||
|
|
foreach (IImageImporter importer in _importers)
|
|||
|
|
{
|
|||
|
|
helper.Reset();
|
|||
|
|
ImportedImage image = importer.ImportImage(helper, document);
|
|||
|
|
if (image != null)
|
|||
|
|
return image;
|
|||
|
|
}
|
|||
|
|
return null;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
#if GDI || WPF || CORE
|
|||
|
|
/// <summary>
|
|||
|
|
/// Imports the image.
|
|||
|
|
/// </summary>
|
|||
|
|
public ImportedImage ImportImage(string filename, PdfDocument document)
|
|||
|
|
{
|
|||
|
|
ImportedImage ii;
|
|||
|
|
using (Stream fs = File.OpenRead(filename))
|
|||
|
|
{
|
|||
|
|
ii = ImportImage(fs, document);
|
|||
|
|
}
|
|||
|
|
return ii;
|
|||
|
|
}
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
private readonly List<IImageImporter> _importers = new List<IImageImporter>();
|
|||
|
|
}
|
|||
|
|
}
|