| AppearanceElement Function | ||
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Create a new AppearanceElement.
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Syntax
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[C#]
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Params
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Notes
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Create a new AppearanceElement. The different constructors allow different ways of creating an Element. Some are used for wrapping existing Atoms or IndirectObjects and others are for creating new ones. The constructor taking a relation Element creates a new object in the document - it is typically the constructor you will want to use. Do not specify creation options unless you have very specific needs. However for your first Element - one you can use as a relation for the others - you will need to wrap an existing IndirectObject inside an Element. For this you might use code of the following form "CatalogElement root = new CatalogElement(doc.ObjectSoup.Catalog)". The parameterless constructor allows you to create an empty Element. By empty we mean it has no contents - no Atom within it. So before use an Atom must be Assigned or Created. In practice it is easiest to do this using one of the other constructors. The atom and host constructor is used to wrap an existing Atom. It creates an Element and then Assigns the Atom to it. The result is a specialized Element which can be used to examine or modify the contents of the Atom. The CreationOptions enumeration may take the following values:
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Example
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This code snippet is taken from Annotations.cs line 847 in the Annotations example project.
CatalogElement cat = new CatalogElement(Doc.ObjectSoup.Catalog);
cat.EntryAcroForm.EntrySigFlags = 3;
// NB If you don't want your signature to print then set the /F flag to 0
int fieldID = Doc.AddObject("<</Type /Annot /Subtype /Widget /F 4 /FT /Sig /DA (/TimesRoman 0 Tf 0 g)>>");
WidgetAnnotationElement widget = new WidgetAnnotationElement(Doc.ObjectSoup[fieldID]);
SignatureFieldElement field = (SignatureFieldElement)widget.FieldElement;
FormField formField = new FormField(this, inName, field.Object.ID);
formField.Widget.Rect = new XRect(inRect);
if (mSig == null)
Doc.Form.Refresh();
else {
string sigName = mSig.Name;
Doc.Form.Refresh();
mSig = (Signature)Doc.Form[sigName];
}
if (inAppearanceText != null) {
XRect rect = widget.EntryRect.GetRect();
rect.Pin = XRect.Corner.TopLeft;
rect.Width = 200; // Change this to fit the Text
rect.Height = 60; // Change this to fit the Text
widget.EntryRect.SetRect(rect);
rect.Pin = XRect.Corner.BottomLeft;
rect.Position(0, 0);
int fontSize = 12;
string theRect = Doc.Rect.String;
int theFont = Doc.Font;
int theFontSize = Doc.FontSize;
double charSpacing = Doc.TextStyle.CharSpacing;
double lineSpacing = Doc.TextStyle.LineSpacing;
int pageID = Doc.Page;
// Use a detached page to avoid changes to the current page
// or to the page tree for a new page
Doc.Page = Doc.AddObject("<</Type /Page /MediaBox [" + rect.String + "] >>");
Doc.Rect.String = rect.String;
int fontID = Doc.AddFont("Times-Roman");
Doc.Font = fontID;
Doc.FontSize = fontSize;
Doc.TextStyle.CharSpacing = 0;
Doc.TextStyle.LineSpacing = 2;
int textID = Doc.AddText(inAppearanceText);
string textStream = Doc.GetInfo(textID, "Stream");
Doc.Delete(textID);
int l1 = textStream.IndexOf("/Fabc", 0, textStream.Length);
int l2 = textStream.IndexOf(" ", l1, textStream.Length - l1);
string fontResName = textStream.Substring(l1 + 1, l2 - l1 - 1);
Doc.Delete(Doc.Page);
Doc.Page = pageID;
Doc.Rect.String = theRect;
Doc.Font = theFont;
Doc.FontSize = theFontSize;
Doc.TextStyle.CharSpacing = charSpacing;
Doc.TextStyle.LineSpacing = lineSpacing;
widget.EntryAP = new AppearanceElement(widget);
widget.EntryAP.EntryN = MakeAppearance(rect, null, 0, fontResName, fontID, textStream);
}
return formField;
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