internal static TrueTypeFont CreateFontProgram(PdfDictionary fontDictionary, FontEncoding fontEncoding)
{
iText.Kernel.Font.DocTrueTypeFont fontProgram = new iText.Kernel.Font.DocTrueTypeFont(fontDictionary);
FillFontDescriptor(fontProgram, fontDictionary.GetAsDictionary(PdfName.FontDescriptor));
PdfNumber firstCharNumber = fontDictionary.GetAsNumber(PdfName.FirstChar);
int firstChar = firstCharNumber != null?Math.Max(firstCharNumber.IntValue(), 0) : 0;
int[] widths = FontUtil.ConvertSimpleWidthsArray(fontDictionary.GetAsArray(PdfName.Widths), firstChar, fontProgram
.GetMissingWidth());
fontProgram.avgWidth = 0;
int glyphsWithWidths = 0;
for (int i = 0; i < 256; i++)
{
Glyph glyph = new Glyph(i, widths[i], fontEncoding.GetUnicode(i));
fontProgram.codeToGlyph[i] = glyph;
//FontEncoding.codeToUnicode table has higher priority
if (glyph.HasValidUnicode() && fontEncoding.ConvertToByte(glyph.GetUnicode()) == i)
{
fontProgram.unicodeToGlyph[glyph.GetUnicode()] = glyph;
}
if (widths[i] > 0)
{
glyphsWithWidths++;
fontProgram.avgWidth += widths[i];
}
}
if (glyphsWithWidths != 0)
{
fontProgram.avgWidth /= glyphsWithWidths;
}
return(fontProgram);
}
/// <summary>Creates a Type 3 font based on an existing font dictionary, which must be an indirect object.</summary>
/// <param name="fontDictionary">a dictionary of type <code>/Font</code>, must have an indirect reference.</param>
internal PdfType3Font(PdfDictionary fontDictionary)
: base(fontDictionary)
{
subset = true;
embedded = true;
fontProgram = new Type3Font(false);
CMapToUnicode toUni = FontUtil.ProcessToUnicode(fontDictionary.Get(PdfName.ToUnicode));
fontEncoding = DocFontEncoding.CreateDocFontEncoding(fontDictionary.Get(PdfName.Encoding), toUni);
PdfDictionary charProcsDic = GetPdfObject().GetAsDictionary(PdfName.CharProcs);
PdfArray fontMatrixArray = GetPdfObject().GetAsArray(PdfName.FontMatrix);
if (GetPdfObject().ContainsKey(PdfName.FontBBox))
{
PdfArray fontBBox = GetPdfObject().GetAsArray(PdfName.FontBBox);
fontProgram.GetFontMetrics().SetBbox(fontBBox.GetAsNumber(0).IntValue(), fontBBox.GetAsNumber(1).IntValue(
), fontBBox.GetAsNumber(2).IntValue(), fontBBox.GetAsNumber(3).IntValue());
}
else
{
fontProgram.GetFontMetrics().SetBbox(0, 0, 0, 0);
}
int firstChar = NormalizeFirstLastChar(fontDictionary.GetAsNumber(PdfName.FirstChar), 0);
int lastChar = NormalizeFirstLastChar(fontDictionary.GetAsNumber(PdfName.LastChar), 255);
for (int i = firstChar; i <= lastChar; i++)
{
shortTag[i] = 1;
}
int[] widths = FontUtil.ConvertSimpleWidthsArray(fontDictionary.GetAsArray(PdfName.Widths), firstChar, 0);
double[] fontMatrix = new double[6];
for (int i = 0; i < fontMatrixArray.Size(); i++)
{
fontMatrix[i] = ((PdfNumber)fontMatrixArray.Get(i)).GetValue();
}
SetFontMatrix(fontMatrix);
foreach (PdfName glyphName in charProcsDic.KeySet())
{
int unicode = AdobeGlyphList.NameToUnicode(glyphName.GetValue());
if (unicode != -1 && fontEncoding.CanEncode(unicode))
{
int code = fontEncoding.ConvertToByte(unicode);
((Type3Font)GetFontProgram()).AddGlyph(code, unicode, widths[code], null, new Type3Glyph(charProcsDic.GetAsStream
(glyphName), GetDocument()));
}
}
FillFontDescriptor(fontDictionary.GetAsDictionary(PdfName.FontDescriptor));
}
/// <summary>Creates a Type3 font based on an existing font dictionary, which must be an indirect object.</summary>
/// <param name="fontDictionary">a dictionary of type <code>/Font</code>, must have an indirect reference.</param>
internal PdfType3Font(PdfDictionary fontDictionary)
: base(fontDictionary)
{
EnsureObjectIsAddedToDocument(fontDictionary);
CheckFontDictionary(fontDictionary, PdfName.Type3);
subset = true;
embedded = true;
fontProgram = new Type3FontProgram(false);
fontEncoding = DocFontEncoding.CreateDocFontEncoding(fontDictionary.Get(PdfName.Encoding), null, false);
PdfDictionary charProcsDic = GetPdfObject().GetAsDictionary(PdfName.CharProcs);
PdfArray fontMatrixArray = GetPdfObject().GetAsArray(PdfName.FontMatrix);
if (GetPdfObject().ContainsKey(PdfName.FontBBox))
{
PdfArray fontBBox = GetPdfObject().GetAsArray(PdfName.FontBBox);
fontProgram.GetFontMetrics().SetBbox(fontBBox.GetAsNumber(0).IntValue(), fontBBox.GetAsNumber(1).IntValue(
), fontBBox.GetAsNumber(2).IntValue(), fontBBox.GetAsNumber(3).IntValue());
}
else
{
fontProgram.GetFontMetrics().SetBbox(0, 0, 0, 0);
}
PdfNumber firstCharNumber = fontDictionary.GetAsNumber(PdfName.FirstChar);
int firstChar = firstCharNumber != null?Math.Max(firstCharNumber.IntValue(), 0) : 0;
int[] widths = FontUtil.ConvertSimpleWidthsArray(fontDictionary.GetAsArray(PdfName.Widths), firstChar);
double[] fontMatrix = new double[6];
for (int i = 0; i < fontMatrixArray.Size(); i++)
{
fontMatrix[i] = ((PdfNumber)fontMatrixArray.Get(i)).GetValue();
}
SetFontMatrix(fontMatrix);
foreach (PdfName glyphName in charProcsDic.KeySet())
{
int unicode = (int)AdobeGlyphList.NameToUnicode(glyphName.GetValue());
if (unicode != -1 && fontEncoding.CanEncode(unicode))
{
int code = fontEncoding.ConvertToByte(unicode);
((Type3FontProgram)GetFontProgram()).AddGlyph(code, unicode, widths[code], null, new Type3Glyph(charProcsDic
.GetAsStream(glyphName), GetDocument()));
}
}
}
/// <summary>Creates a Type 3 font based on an existing font dictionary, which must be an indirect object.</summary>
/// <param name="fontDictionary">a dictionary of type <c>/Font</c>, must have an indirect reference.</param>
internal PdfType3Font(PdfDictionary fontDictionary)
: base(fontDictionary)
{
subset = true;
embedded = true;
fontProgram = new Type3Font(false);
fontEncoding = DocFontEncoding.CreateDocFontEncoding(fontDictionary.Get(PdfName.Encoding), toUnicode);
PdfDictionary charProcsDic = GetPdfObject().GetAsDictionary(PdfName.CharProcs);
PdfArray fontMatrixArray = GetPdfObject().GetAsArray(PdfName.FontMatrix);
if (GetPdfObject().ContainsKey(PdfName.FontBBox))
{
PdfArray fontBBox = GetPdfObject().GetAsArray(PdfName.FontBBox);
fontProgram.GetFontMetrics().SetBbox(fontBBox.GetAsNumber(0).IntValue(), fontBBox.GetAsNumber(1).IntValue(
), fontBBox.GetAsNumber(2).IntValue(), fontBBox.GetAsNumber(3).IntValue());
}
else
{
fontProgram.GetFontMetrics().SetBbox(0, 0, 0, 0);
}
int firstChar = NormalizeFirstLastChar(fontDictionary.GetAsNumber(PdfName.FirstChar), 0);
int lastChar = NormalizeFirstLastChar(fontDictionary.GetAsNumber(PdfName.LastChar), 255);
for (int i = firstChar; i <= lastChar; i++)
{
shortTag[i] = 1;
}
int[] widths = FontUtil.ConvertSimpleWidthsArray(fontDictionary.GetAsArray(PdfName.Widths), firstChar, 0);
double[] fontMatrix = new double[6];
for (int i = 0; i < fontMatrixArray.Size(); i++)
{
fontMatrix[i] = ((PdfNumber)fontMatrixArray.Get(i)).GetValue();
}
SetFontMatrix(fontMatrix);
if (toUnicode != null && toUnicode.HasByteMappings() && fontEncoding.HasDifferences())
{
for (int i = 0; i < 256; i++)
{
int unicode = fontEncoding.GetUnicode(i);
PdfName glyphName = new PdfName(fontEncoding.GetDifference(i));
if (unicode != -1 && !FontEncoding.NOTDEF.Equals(glyphName.GetValue()) && charProcsDic.ContainsKey(glyphName
))
{
((Type3Font)GetFontProgram()).AddGlyph(i, unicode, widths[i], null, new Type3Glyph(charProcsDic.GetAsStream
(glyphName), GetDocument()));
}
}
}
IDictionary <int, int?> unicodeToCode = null;
if (toUnicode != null)
{
try {
unicodeToCode = toUnicode.CreateReverseMapping();
}
catch (Exception) {
}
}
foreach (PdfName glyphName in charProcsDic.KeySet())
{
int unicode = AdobeGlyphList.NameToUnicode(glyphName.GetValue());
int code = -1;
if (fontEncoding.CanEncode(unicode))
{
code = fontEncoding.ConvertToByte(unicode);
}
else
{
if (unicodeToCode != null && unicodeToCode.ContainsKey(unicode))
{
code = (int)unicodeToCode.Get(unicode);
}
}
if (code != -1 && GetFontProgram().GetGlyphByCode(code) == null)
{
((Type3Font)GetFontProgram()).AddGlyph(code, unicode, widths[code], null, new Type3Glyph(charProcsDic.GetAsStream
(glyphName), GetDocument()));
}
}
FillFontDescriptor(fontDictionary.GetAsDictionary(PdfName.FontDescriptor));
}
internal static Type1Font CreateFontProgram(PdfDictionary fontDictionary, FontEncoding fontEncoding, CMapToUnicode
toUnicode)
{
PdfName baseFontName = fontDictionary.GetAsName(PdfName.BaseFont);
String baseFont;
if (baseFontName != null)
{
baseFont = baseFontName.GetValue();
}
else
{
baseFont = FontUtil.CreateRandomFontName();
}
if (!fontDictionary.ContainsKey(PdfName.FontDescriptor))
{
Type1Font type1StdFont;
try {
//if there are no font modifiers, cached font could be used,
//otherwise a new instance should be created.
type1StdFont = (Type1Font)FontProgramFactory.CreateFont(baseFont, true);
}
catch (Exception) {
type1StdFont = null;
}
if (type1StdFont != null)
{
return(type1StdFont);
}
}
iText.Kernel.Font.DocType1Font fontProgram = new iText.Kernel.Font.DocType1Font(baseFont);
PdfDictionary fontDesc = fontDictionary.GetAsDictionary(PdfName.FontDescriptor);
fontProgram.subtype = fontDesc.GetAsName(PdfName.Subtype);
FillFontDescriptor(fontProgram, fontDesc);
PdfNumber firstCharNumber = fontDictionary.GetAsNumber(PdfName.FirstChar);
int firstChar = firstCharNumber != null?Math.Max(firstCharNumber.IntValue(), 0) : 0;
int[] widths = FontUtil.ConvertSimpleWidthsArray(fontDictionary.GetAsArray(PdfName.Widths), firstChar, fontProgram
.GetMissingWidth());
fontProgram.avgWidth = 0;
int glyphsWithWidths = 0;
for (int i = 0; i < 256; i++)
{
Glyph glyph = new Glyph(i, widths[i], fontEncoding.GetUnicode(i));
fontProgram.codeToGlyph[i] = glyph;
if (glyph.HasValidUnicode())
{
//FontEncoding.codeToUnicode table has higher priority
if (fontEncoding.ConvertToByte(glyph.GetUnicode()) == i)
{
fontProgram.unicodeToGlyph[glyph.GetUnicode()] = glyph;
}
}
else
{
if (toUnicode != null)
{
glyph.SetChars(toUnicode.Lookup(i));
}
}
if (widths[i] > 0)
{
glyphsWithWidths++;
fontProgram.avgWidth += widths[i];
}
}
if (glyphsWithWidths != 0)
{
fontProgram.avgWidth /= glyphsWithWidths;
}
return(fontProgram);
}
