#region PDFsharp - A .NET library for processing PDF
//
// Authors:
// Stefan Lange
//
// 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 PdfSharp.Pdf.Annotations;
using PdfSharp.Pdf.Advanced;
namespace PdfSharp.Pdf.AcroForms
{
///
/// Represents the check box field.
///
public sealed class PdfCheckBoxField : PdfButtonField
{
///
/// Initializes a new instance of PdfCheckBoxField.
///
internal PdfCheckBoxField(PdfDocument document)
: base(document)
{
_document = document;
}
internal PdfCheckBoxField(PdfDictionary dict)
: base(dict)
{ }
#if true_
///
/// Indicates whether the field is checked.
///
public bool Checked //R080317 // TODO
{
get
{
if (!HasKids)
{
string value = Elements.GetString(Keys.V);
//return !String.IsNullOrEmpty(value) && value != UncheckedValue;
return !String.IsNullOrEmpty(value) && value == CheckedName;
}
if (Fields.Elements.Items.Length == 2)
{
string value = ((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements.GetString(Keys.V);
//bool bReturn = value.Length != 0 && value != UncheckedValue; //R081114 (3Std.!!) auch auf Nein prüfen; //TODO woher kommt der Wert?
bool bReturn = value.Length != 0 && value == CheckedName;
return bReturn;
}
// NYI: Return false in any other case.
return false;
}
set
{
if (!HasKids)
{
//string name = value ? GetNonOffValue() : "/Off";
string name = value ? CheckedName : UncheckedName;
Elements.SetName(Keys.V, name);
Elements.SetName(PdfAnnotation.Keys.AS, name);
}
else
{
// Here we have to handle fields that exist twice with the same name.
// Checked must be set for both fields, using /Off for one field and skipping /Off for the other,
// to have only one field with a check mark.
// Finding this took me two working days.
if (Fields.Elements.Items.Length == 2)
{
if (value)
{
//Element 0 behandeln -> auf checked setzen
string name1 = "";
PdfDictionary o = ((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements["/AP"] as PdfDictionary;
if (o != null)
{
PdfDictionary n = o.Elements["/N"] as PdfDictionary;
if (n != null)
{
foreach (string name in n.Elements.Keys)
{
//if (name != UncheckedValue)
if (name == CheckedName)
{
name1 = name;
break;
}
}
}
}
if (name1.Length != 0)
{
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements.SetName(Keys.V, name1);
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements.SetName(PdfAnnotation.Keys.AS, name1);
}
//Element 1 behandeln -> auf unchecked setzen
o = ((PdfDictionary)(((PdfReference)(Fields.Elements.Items[1])).Value)).Elements["/AP"] as PdfDictionary;
if (o != null)
{
PdfDictionary n = o.Elements["/N"] as PdfDictionary;
if (n != null)
{
foreach (string name in n.Elements.Keys)
{
if (name == UncheckedName)
{
name1 = name;
break;
}
}
}
}
if (!String.IsNullOrEmpty(name1))
{
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[1])).Value)).Elements.SetName(Keys.V, name1);
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[1])).Value)).Elements.SetName(PdfAnnotation.Keys.AS, name1);
}
}
else
{
//Element 0 behandeln -> auf unchecked setzen
string name1 = "";
PdfDictionary o = ((PdfDictionary)(((PdfReference)(Fields.Elements.Items[1])).Value)).Elements["/AP"] as PdfDictionary;
if (o != null)
{
PdfDictionary n = o.Elements["/N"] as PdfDictionary;
if (n != null)
{
foreach (string name in n.Elements.Keys)
{
//if (name != UncheckedValue)
if (name == CheckedName)
{
name1 = name;
break;
}
}
}
}
if (name1.Length != 0)
{
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[1])).Value)).Elements.SetName(Keys.V, name1);
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[1])).Value)).Elements.SetName(PdfAnnotation.Keys.AS, name1);
}
//Element 1 behandeln -> auf checked setzen
o = ((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements["/AP"] as PdfDictionary;
if (o != null)
{
PdfDictionary n = o.Elements["/N"] as PdfDictionary;
if (n != null)
{
foreach (string name in n.Elements.Keys)
{
if (name == UncheckedName)
{
name1 = name;
break;
}
}
}
}
if (name1.Length != 0)
{
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements.SetName(Keys.V, name1);
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements.SetName(PdfAnnotation.Keys.AS, name1);
}
}
}
}
}
}
#else
///
/// Indicates whether the field is checked.
///
public bool Checked
{
get
{
if (!HasKids) //R080317
{
string value = Elements.GetString(Keys.V);
return value.Length != 0 && value != "/Off";
}
else //R080317
{
if (Fields.Elements.Items.Length == 2)
{
string value = ((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements.GetString(Keys.V);
bool bReturn = value.Length != 0 && value != "/Off" && value != "/Nein"; //R081114 (3Std.!!) auch auf Nein prüfen; //TODO woher kommt der Wert?
return bReturn;
}
else
return false;
}
}
set
{
if (!HasKids)
{
string name = value ? GetNonOffValue() : "/Off";
Elements.SetName(Keys.V, name);
Elements.SetName(PdfAnnotation.Keys.AS, name);
}
else
{
// Here we have to handle fields that exist twice with the same name.
// Checked must be set for both fields, using /Off for one field and skipping /Off for the other,
// to have only one field with a check mark.
// Finding this took me two working days.
if (Fields.Elements.Items.Length == 2)
{
if (value)
{
//Element 0 behandeln -> auf checked setzen
string name1 = "";
PdfDictionary o = ((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements["/AP"] as PdfDictionary;
if (o != null)
{
PdfDictionary n = o.Elements["/N"] as PdfDictionary;
if (n != null)
{
foreach (string name in n.Elements.Keys)
{
if (name != "/Off")
{
name1 = name;
break;
}
}
}
}
if (name1.Length != 0)
{
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements.SetName(Keys.V, name1);
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements.SetName(PdfAnnotation.Keys.AS, name1);
}
//Element 1 behandeln -> auf unchecked setzen
o = ((PdfDictionary)(((PdfReference)(Fields.Elements.Items[1])).Value)).Elements["/AP"] as PdfDictionary;
if (o != null)
{
PdfDictionary n = o.Elements["/N"] as PdfDictionary;
if (n != null)
{
foreach (string name in n.Elements.Keys)
{
if (name == "/Off")
{
name1 = name;
break;
}
}
}
}
if (name1.Length != 0)
{
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[1])).Value)).Elements.SetName(Keys.V, name1);
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[1])).Value)).Elements.SetName(PdfAnnotation.Keys.AS, name1);
}
}
else
{
//Element 0 behandeln -> auf unchecked setzen
string name1 = "";
PdfDictionary o = ((PdfDictionary)(((PdfReference)(Fields.Elements.Items[1])).Value)).Elements["/AP"] as PdfDictionary;
if (o != null)
{
PdfDictionary n = o.Elements["/N"] as PdfDictionary;
if (n != null)
{
foreach (string name in n.Elements.Keys)
{
if (name != "/Off")
{
name1 = name;
break;
}
}
}
}
if (name1.Length != 0)
{
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[1])).Value)).Elements.SetName(Keys.V, name1);
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[1])).Value)).Elements.SetName(PdfAnnotation.Keys.AS, name1);
}
//Element 1 behandeln -> auf checked setzen
o = ((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements["/AP"] as PdfDictionary;
if (o != null)
{
PdfDictionary n = o.Elements["/N"] as PdfDictionary;
if (n != null)
{
foreach (string name in n.Elements.Keys)
{
if (name == "/Off")
{
name1 = name;
break;
}
}
}
}
if (name1.Length != 0)
{
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements.SetName(Keys.V, name1);
((PdfDictionary)(((PdfReference)(Fields.Elements.Items[0])).Value)).Elements.SetName(PdfAnnotation.Keys.AS, name1);
}
}
}
}
}
}
#endif
///
/// Gets or sets the name of the dictionary that represents the Checked state.
///
/// The default value is "/Yes".
public string CheckedName
{
get { return _checkedName; }
set { _checkedName = value; }
}
string _checkedName = "/Yes";
///
/// Gets or sets the name of the dictionary that represents the Unchecked state.
/// The default value is "/Off".
///
public string UncheckedName
{
get { return _uncheckedName; }
set { _uncheckedName = value; }
}
string _uncheckedName = "/Off";
///
/// Predefined keys of this dictionary.
/// The description comes from PDF 1.4 Reference.
///
public new class Keys : PdfButtonField.Keys
{
///
/// (Optional; inheritable; PDF 1.4) A text string to be used in place of the V entry for the
/// value of the field.
///
[KeyInfo(KeyType.TextString | KeyType.Optional)]
public const string Opt = "/Opt";
///
/// Gets the KeysMeta for these keys.
///
internal static DictionaryMeta Meta
{
get { return _meta ?? (_meta = CreateMeta(typeof(Keys))); }
}
static DictionaryMeta _meta;
}
///
/// Gets the KeysMeta of this dictionary type.
///
internal override DictionaryMeta Meta
{
get { return Keys.Meta; }
}
}
}