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#region PDFsharp - A .NET library for processing PDF
//
// Authors:
// Stefan Lange (mailto:Stefan.Lange@pdfsharp.com)
//
// Copyright (c) 2005-2008 empira Software GmbH, Cologne (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;
using System.Diagnostics;
using System.Collections;
using PdfSharp.Pdf.Internal;
namespace PdfSharp.Pdf.AcroForms
{
/// <summary>
/// Represents a interactive form (or AcroForm), a collection of fields for
/// gathering information interactively from the user.
/// </summary>
public sealed class PdfAcroForm : PdfDictionary
{
/// <summary>
/// Initializes a new instance of AcroForm.
/// </summary>
internal PdfAcroForm(PdfDocument document) : base(document)
{
this.document = document;
}
PdfAcroForm(PdfDictionary dictionary) : base(dictionary)
{
}
/// <summary>
/// Gets the fields collection of this form.
/// </summary>
public PdfAcroField.PdfAcroFieldCollection Fields
{
get
{
if (this.fields == null)
{
object o = Elements.GetValue(Keys.Fields, VCF.CreateIndirect);
this.fields = (PdfAcroField.PdfAcroFieldCollection)o;
}
return this.fields;
}
}
PdfAcroField.PdfAcroFieldCollection fields;
/// <summary>
/// Predefined keys of this dictionary.
/// The description comes from PDF 1.4 Reference.
/// </summary>
public sealed class Keys : KeysBase
{
/// <summary>
/// (Required) An array of references to the documents root fields (those with
/// no ancestors in the field hierarchy).
/// </summary>
[KeyInfo(KeyType.Array | KeyType.Required, typeof(PdfAcroField.PdfAcroFieldCollection))]
public const string Fields = "/Fields";
/// <summary>
/// (Optional) A flag specifying whether to construct appearance streams and
/// appearance dictionaries for all widget annotations in the document.
/// Default value: false.
/// </summary>
[KeyInfo(KeyType.Boolean | KeyType.Optional)]
public const string NeedAppearances = "/NeedAppearances";
/// <summary>
/// (Optional; PDF 1.3) A set of flags specifying various document-level characteristics
/// related to signature fields.
/// Default value: 0.
/// </summary>
[KeyInfo("1.3", KeyType.Integer | KeyType.Optional)]
public const string SigFlags = "/SigFlags";
/// <summary>
/// (Required if any fields in the document have additional-actions dictionaries
/// containing a C entry; PDF 1.3) An array of indirect references to field dictionaries
/// with calculation actions, defining the calculation order in which their values will
/// be recalculated when the value of any field changes.
/// </summary>
[KeyInfo(KeyType.Array)]
public const string CO = "/CO";
/// <summary>
/// (Optional) A document-wide default value for the DR attribute of variable text fields.
/// </summary>
[KeyInfo(KeyType.Dictionary | KeyType.Optional)]
public const string DR = "/DR";
/// <summary>
/// (Optional) A document-wide default value for the DA attribute of variable text fields.
/// </summary>
[KeyInfo(KeyType.String | KeyType.Optional)]
public const string DA = "/DA";
/// <summary>
/// (Optional) A document-wide default value for the Q attribute of variable text fields.
/// </summary>
[KeyInfo(KeyType.Integer | KeyType.Optional)]
public const string Q = "/Q";
/// <summary>
/// Gets the KeysMeta for these keys.
/// </summary>
internal static DictionaryMeta Meta
{
get
{
if (Keys.meta == null)
Keys.meta = CreateMeta(typeof(Keys));
return Keys.meta;
}
}
static DictionaryMeta meta;
}
/// <summary>
/// Gets the KeysMeta of this dictionary type.
/// </summary>
internal override DictionaryMeta Meta
{
get {return Keys.Meta;}
}
}
}
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