|
public DecodeGenericDictionary ( |
||
| merged | ||
| tx | ||
| Результат | void | |
public void DecodeGenericDictionary(PdfDictionary merged, BaseField tx) {
int flags = 0;
// the text size and color
PdfString da = merged.GetAsString(PdfName.DA);
if (da != null) {
Object[] dab = SplitDAelements(da.ToUnicodeString());
if (dab[DA_SIZE] != null)
tx.FontSize = (float)dab[DA_SIZE];
if (dab[DA_COLOR] != null)
tx.TextColor = (Color)dab[DA_COLOR];
if (dab[DA_FONT] != null) {
PdfDictionary font = merged.GetAsDict(PdfName.DR);
if (font != null) {
font = font.GetAsDict(PdfName.FONT);
if (font != null) {
PdfObject po = font.Get(new PdfName((String)dab[DA_FONT]));
if (po != null && po.Type == PdfObject.INDIRECT) {
PRIndirectReference por = (PRIndirectReference)po;
BaseFont bp = new DocumentFont((PRIndirectReference)po);
tx.Font = bp;
int porkey = por.Number;
BaseFont porf = (BaseFont)extensionFonts[porkey];
if (porf == null) {
if (!extensionFonts.ContainsKey(porkey)) {
PdfDictionary fo = (PdfDictionary)PdfReader.GetPdfObject(po);
PdfDictionary fd = fo.GetAsDict(PdfName.FONTDESCRIPTOR);
if (fd != null) {
PRStream prs = (PRStream)PdfReader.GetPdfObject(fd.Get(PdfName.FONTFILE2));
if (prs == null)
prs = (PRStream)PdfReader.GetPdfObject(fd.Get(PdfName.FONTFILE3));
if (prs == null) {
extensionFonts[porkey] = null;
}
else {
try {
porf = BaseFont.CreateFont("font.ttf", BaseFont.IDENTITY_H, true, false, PdfReader.GetStreamBytes(prs), null);
}
catch {
}
extensionFonts[porkey] = porf;
}
}
}
}
if (tx is TextField)
((TextField)tx).ExtensionFont = porf;
}
else {
BaseFont bf = (BaseFont)localFonts[dab[DA_FONT]];
if (bf == null) {
String[] fn = (String[])stdFieldFontNames[dab[DA_FONT]];
if (fn != null) {
try {
String enc = "winansi";
if (fn.Length > 1)
enc = fn[1];
bf = BaseFont.CreateFont(fn[0], enc, false);
tx.Font = bf;
}
catch {
// empty
}
}
}
else
tx.Font = bf;
}
}
}
}
}
//rotation, border and backgound color
PdfDictionary mk = merged.GetAsDict(PdfName.MK);
if (mk != null) {
PdfArray ar = mk.GetAsArray(PdfName.BC);
Color border = GetMKColor(ar);
tx.BorderColor = border;
if (border != null)
tx.BorderWidth = 1;
ar = mk.GetAsArray(PdfName.BG);
tx.BackgroundColor = GetMKColor(ar);
PdfNumber rotation = mk.GetAsNumber(PdfName.R);
if (rotation != null)
tx.Rotation = rotation.IntValue;
}
//flags
PdfNumber nfl = merged.GetAsNumber(PdfName.F);
flags = 0;
tx.Visibility = BaseField.VISIBLE_BUT_DOES_NOT_PRINT;
if (nfl != null) {
flags = nfl.IntValue;
if ((flags & PdfFormField.FLAGS_PRINT) != 0 && (flags & PdfFormField.FLAGS_HIDDEN) != 0)
tx.Visibility = BaseField.HIDDEN;
else if ((flags & PdfFormField.FLAGS_PRINT) != 0 && (flags & PdfFormField.FLAGS_NOVIEW) != 0)
tx.Visibility = BaseField.HIDDEN_BUT_PRINTABLE;
else if ((flags & PdfFormField.FLAGS_PRINT) != 0)
tx.Visibility = BaseField.VISIBLE;
}
//multiline
nfl = merged.GetAsNumber(PdfName.FF);
flags = 0;
if (nfl != null)
flags = nfl.IntValue;
tx.Options = flags;
if ((flags & PdfFormField.FF_COMB) != 0) {
PdfNumber maxLen = merged.GetAsNumber(PdfName.MAXLEN);
int len = 0;
if (maxLen != null)
len = maxLen.IntValue;
tx.MaxCharacterLength = len;
}
//alignment
nfl = merged.GetAsNumber(PdfName.Q);
if (nfl != null) {
if (nfl.IntValue == PdfFormField.Q_CENTER)
tx.Alignment = Element.ALIGN_CENTER;
else if (nfl.IntValue == PdfFormField.Q_RIGHT)
tx.Alignment = Element.ALIGN_RIGHT;
}
//border styles
PdfDictionary bs = merged.GetAsDict(PdfName.BS);
if (bs != null) {
PdfNumber w = bs.GetAsNumber(PdfName.W);
if (w != null)
tx.BorderWidth = w.FloatValue;
PdfName s = bs.GetAsName(PdfName.S);
if (PdfName.D.Equals(s))
tx.BorderStyle = PdfBorderDictionary.STYLE_DASHED;
else if (PdfName.B.Equals(s))
tx.BorderStyle = PdfBorderDictionary.STYLE_BEVELED;
else if (PdfName.I.Equals(s))
tx.BorderStyle = PdfBorderDictionary.STYLE_INSET;
else if (PdfName.U.Equals(s))
tx.BorderStyle = PdfBorderDictionary.STYLE_UNDERLINE;
}
else {
PdfArray bd = merged.GetAsArray(PdfName.BORDER);
if (bd != null) {
if (bd.Size >= 3)
tx.BorderWidth = bd.GetAsNumber(2).FloatValue;
if (bd.Size >= 4)
tx.BorderStyle = PdfBorderDictionary.STYLE_DASHED;
}
}
}
/// <summary>
/// Get a Standard Type 1 (14) font from a text field
/// </summary>
/// <param name="acroFields">AcroFields</param>
/// <param name="fieldName">Text field name</param>
/// <returns>
/// Standard Type 1 (14) font if possible, or BaseFont.HELVETICA
/// </returns>
public static BaseFont GetStandardFont(AcroFields acroFields, string fieldName)
{
var baseFont = BaseFont.CreateFont();
try
{
var item = acroFields.GetFieldItem(fieldName);
var pdfDictionary = item.GetMerged(0);
var textField = new TextField(null, null, null);
acroFields.DecodeGenericDictionary(pdfDictionary, textField);
baseFont = BaseFont.CreateFont(
// keep next line for reference: Google and StackOverflow aren't always right...
// textField.Font.FullFontName[0][3],
textField.Font.PostscriptFontName,
BaseFont.WINANSI,
false
);
}
catch
{
// iTextSharp.text.DocumentException, but we don't care
}
return baseFont;
}
