internal void RegisterAsComposite(
PDF pdf,
Font font,
Stream inputStream,
bool embed)
{
otf = new OTF(inputStream);
if (embed) {
EmbedFontFile(pdf, font, otf, false);
}
AddFontDescriptorObject(pdf, font, otf, embed);
AddCIDFontDictionaryObject(pdf, font, otf);
AddToUnicodeCMapObject(pdf, font, otf);
// Type0 Font Dictionary
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /Font\n");
pdf.Append("/Subtype /Type0\n");
pdf.Append("/BaseFont /");
pdf.Append(otf.fontName);
pdf.Append('\n');
pdf.Append("/Encoding /Identity-H\n");
pdf.Append("/DescendantFonts [");
pdf.Append(font.GetCidFontDictObjNumber());
pdf.Append(" 0 R]\n");
pdf.Append("/ToUnicode ");
pdf.Append(font.GetToUnicodeCMapObjNumber());
pdf.Append(" 0 R\n");
pdf.Append(">>\n");
pdf.Endobj();
font.objNumber = pdf.objNumber;
}
private void AddCIDFontDictionaryObject(
PDF pdf,
Font font,
OTF otf)
{
for (int i = 0; i < pdf.fonts.Count; i++)
{
Font f = pdf.fonts[i];
if (f.name.Equals(otf.fontName) && f.GetCidFontDictObjNumber() != -1)
{
font.SetCidFontDictObjNumber(f.GetCidFontDictObjNumber());
return;
}
}
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /Font\n");
if (otf.cff)
{
pdf.Append("/Subtype /CIDFontType0\n");
}
else
{
pdf.Append("/Subtype /CIDFontType2\n");
}
pdf.Append("/BaseFont /");
pdf.Append(otf.fontName);
pdf.Append('\n');
pdf.Append("/CIDSystemInfo <</Registry (Adobe) /Ordering (Identity) /Supplement 0>>\n");
pdf.Append("/FontDescriptor ");
pdf.Append(font.GetFontDescriptorObjNumber());
pdf.Append(" 0 R\n");
pdf.Append("/DW ");
pdf.Append((int)
((1000f / otf.unitsPerEm) * otf.advanceWidth[0]));
pdf.Append('\n');
pdf.Append("/W [0[\n");
for (int i = 0; i < otf.advanceWidth.Length; i++)
{
pdf.Append((int)
((1000f / otf.unitsPerEm) * otf.advanceWidth[i]));
if ((i + 1) % 10 == 0)
{
pdf.Append('\n');
}
else
{
pdf.Append(' ');
}
}
pdf.Append("]]\n");
pdf.Append("/CIDToGIDMap /Identity\n");
pdf.Append(">>\n");
pdf.Endobj();
font.SetCidFontDictObjNumber(pdf.objNumber);
}
internal void RegisterAsSimple(
PDF pdf,
Font font,
Stream inputStream,
int codePage,
bool embed)
{
otf = new OTF(inputStream);
if (embed)
{
EmbedFontFile(pdf, font, otf, true);
}
AddFontDescriptorObject(pdf, font, otf, embed);
AddWidthsArrayObject(pdf, font, otf, codePage);
AddEncodingObject(pdf, font, codePage);
// Simple font object
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /Font\n");
if (otf.cff)
{
pdf.Append("/Subtype /Type1\n");
}
else
{
pdf.Append("/Subtype /TrueType\n");
}
pdf.Append("/BaseFont /");
pdf.Append(otf.fontName);
pdf.Append('\n');
pdf.Append("/FirstChar ");
pdf.Append(otf.firstChar);
pdf.Append('\n');
pdf.Append("/LastChar ");
pdf.Append(255);
pdf.Append('\n');
pdf.Append("/Encoding ");
pdf.Append(font.GetEncodingObjNumber());
pdf.Append(" 0 R\n");
pdf.Append("/Widths ");
pdf.Append(font.GetWidthsArrayObjNumber());
pdf.Append(" 0 R\n");
pdf.Append("/FontDescriptor ");
pdf.Append(font.GetFontDescriptorObjNumber());
pdf.Append(" 0 R\n");
pdf.Append(">>\n");
pdf.Endobj();
font.objNumber = pdf.objNumber;
}
internal void RegisterAsSimple(
PDF pdf,
Font font,
Stream inputStream,
int codePage,
bool embed)
{
otf = new OTF(inputStream);
if (embed) {
EmbedFontFile(pdf, font, otf, true);
}
AddFontDescriptorObject(pdf, font, otf, embed);
AddWidthsArrayObject(pdf, font, otf, codePage);
AddEncodingObject(pdf, font, codePage);
// Simple font object
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /Font\n");
if (otf.cff) {
pdf.Append("/Subtype /Type1\n");
} else {
pdf.Append("/Subtype /TrueType\n");
}
pdf.Append("/BaseFont /");
pdf.Append(otf.fontName);
pdf.Append('\n');
pdf.Append("/FirstChar ");
pdf.Append(otf.firstChar);
pdf.Append('\n');
pdf.Append("/LastChar ");
pdf.Append(255);
pdf.Append('\n');
pdf.Append("/Encoding ");
pdf.Append(font.GetEncodingObjNumber());
pdf.Append(" 0 R\n");
pdf.Append("/Widths ");
pdf.Append(font.GetWidthsArrayObjNumber());
pdf.Append(" 0 R\n");
pdf.Append("/FontDescriptor ");
pdf.Append(font.GetFontDescriptorObjNumber());
pdf.Append(" 0 R\n");
pdf.Append(">>\n");
pdf.Endobj();
font.objNumber = pdf.objNumber;
}
internal void RegisterAsComposite(
PDF pdf,
Font font,
Stream inputStream,
bool embed)
{
otf = new OTF(inputStream);
if (embed)
{
EmbedFontFile(pdf, font, otf, false);
}
AddFontDescriptorObject(pdf, font, otf, embed);
AddCIDFontDictionaryObject(pdf, font, otf);
AddToUnicodeCMapObject(pdf, font, otf);
// Type0 Font Dictionary
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /Font\n");
pdf.Append("/Subtype /Type0\n");
pdf.Append("/BaseFont /");
pdf.Append(otf.fontName);
pdf.Append('\n');
pdf.Append("/Encoding /Identity-H\n");
pdf.Append("/DescendantFonts [");
pdf.Append(font.GetCidFontDictObjNumber());
pdf.Append(" 0 R]\n");
pdf.Append("/ToUnicode ");
pdf.Append(font.GetToUnicodeCMapObjNumber());
pdf.Append(" 0 R\n");
pdf.Append(">>\n");
pdf.Endobj();
font.objNumber = pdf.objNumber;
}
private void AddToUnicodeCMapObject(
PDF pdf,
Font font,
OTF otf)
{
for (int i = 0; i < pdf.fonts.Count; i++)
{
Font f = pdf.fonts[i];
if (f.name.Equals(otf.fontName) && f.GetToUnicodeCMapObjNumber() != -1)
{
font.SetToUnicodeCMapObjNumber(f.GetToUnicodeCMapObjNumber());
return;
}
}
StringBuilder sb = new StringBuilder();
sb.Append("/CIDInit /ProcSet findresource begin\n");
sb.Append("12 dict begin\n");
sb.Append("begincmap\n");
sb.Append("/CIDSystemInfo <</Registry (Adobe) /Ordering (Identity) /Supplement 0>> def\n");
sb.Append("/CMapName /Adobe-Identity def\n");
sb.Append("/CMapType 2 def\n");
sb.Append("1 begincodespacerange\n");
sb.Append("<0000> <FFFF>\n");
sb.Append("endcodespacerange\n");
List <String> list = new List <String>();
StringBuilder buf = new StringBuilder();
for (int cid = 0; cid <= 0xffff; cid++)
{
int gid = otf.unicodeToGID[cid];
if (gid > 0)
{
buf.Append('<');
buf.Append(ToHexString(gid));
buf.Append("> <");
buf.Append(ToHexString(cid));
buf.Append(">\n");
list.Add(buf.ToString());
buf.Length = 0;
if (list.Count == 100)
{
WriteListToBuffer(list, sb);
}
}
}
if (list.Count > 0)
{
WriteListToBuffer(list, sb);
}
sb.Append("endcmap\n");
sb.Append("CMapName currentdict /CMap defineresource pop\n");
sb.Append("end\nend");
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Length ");
pdf.Append(sb.Length);
pdf.Append("\n");
pdf.Append(">>\n");
pdf.Append("stream\n");
pdf.Append(sb.ToString());
pdf.Append("\nendstream\n");
pdf.Endobj();
font.SetToUnicodeCMapObjNumber(pdf.objNumber);
}
private void AddWidthsArrayObject(
PDF pdf,
Font font,
OTF otf,
int codePage)
{
pdf.Newobj();
pdf.Append("[ ");
int n = 1;
for (int c = otf.firstChar; c < 256; c++)
{
if (c < 127)
{
pdf.Append((int)
((1000.0f / otf.unitsPerEm) * otf.glyphWidth[c]));
}
else
{
if (codePage == 0)
{
pdf.Append((int)((1000.0f / otf.unitsPerEm)
* otf.glyphWidth[CP1250.codes[c - 127]]));
}
else if (codePage == 1)
{
pdf.Append((int)((1000.0f / otf.unitsPerEm)
* otf.glyphWidth[CP1251.codes[c - 127]]));
}
else if (codePage == 2)
{
pdf.Append((int)((1000.0f / otf.unitsPerEm)
* otf.glyphWidth[CP1252.codes[c - 127]]));
}
else if (codePage == 3)
{
pdf.Append((int)((1000.0f / otf.unitsPerEm)
* otf.glyphWidth[CP1253.codes[c - 127]]));
}
else if (codePage == 4)
{
pdf.Append((int)((1000.0f / otf.unitsPerEm)
* otf.glyphWidth[CP1254.codes[c - 127]]));
}
else if (codePage == 7)
{
pdf.Append((int)((1000.0f / otf.unitsPerEm)
* otf.glyphWidth[CP1257.codes[c - 127]]));
}
}
if (n < 10)
{
pdf.Append(' ');
++n;
}
else
{
pdf.Append('\n');
n = 1;
}
}
pdf.Append("]\n");
pdf.Endobj();
font.SetWidthsArrayObjNumber(pdf.objNumber);
}
private void AddFontDescriptorObject(
PDF pdf,
Font font,
OTF otf,
bool embed)
{
float factor = 1000f / otf.unitsPerEm;
for (int i = 0; i < pdf.fonts.Count; i++)
{
Font f = pdf.fonts[i];
if (f.name.Equals(otf.fontName) && f.GetFontDescriptorObjNumber() != -1)
{
font.SetFontDescriptorObjNumber(f.GetFontDescriptorObjNumber());
return;
}
}
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /FontDescriptor\n");
pdf.Append("/FontName /");
pdf.Append(otf.fontName);
pdf.Append('\n');
if (embed)
{
if (otf.cff)
{
pdf.Append("/FontFile3 ");
}
else
{
pdf.Append("/FontFile2 ");
}
pdf.Append(font.fileObjNumber);
pdf.Append(" 0 R\n");
}
pdf.Append("/Flags 32\n");
pdf.Append("/FontBBox [");
pdf.Append(otf.bBoxLLx * factor);
pdf.Append(' ');
pdf.Append(otf.bBoxLLy * factor);
pdf.Append(' ');
pdf.Append(otf.bBoxURx * factor);
pdf.Append(' ');
pdf.Append(otf.bBoxURy * factor);
pdf.Append("]\n");
pdf.Append("/Ascent ");
pdf.Append(otf.ascent * factor);
pdf.Append('\n');
pdf.Append("/Descent ");
pdf.Append(otf.descent * factor);
pdf.Append('\n');
pdf.Append("/ItalicAngle 0\n");
pdf.Append("/CapHeight ");
pdf.Append(otf.capHeight * factor);
pdf.Append('\n');
pdf.Append("/StemV 79\n");
pdf.Append(">>\n");
pdf.Endobj();
font.SetFontDescriptorObjNumber(pdf.objNumber);
}
private void EmbedFontFile(
PDF pdf,
Font font,
OTF otf,
bool simpleFont)
{
// Check if the font file is already embedded
for (int i = 0; i < pdf.fonts.Count; i++)
{
Font f = pdf.fonts[i];
if (f.name.Equals(otf.fontName) && f.fileObjNumber != -1)
{
font.fileObjNumber = f.fileObjNumber;
return;
}
}
int metadataObjNumber = -1;
if (otf.fontName.ToLower().IndexOf("droid") != -1 ||
otf.fontName.ToLower().IndexOf("roboto") != -1)
{
metadataObjNumber = pdf.AddMetadataObject(AndroidFontsCopyright.NOTICE, true);
}
pdf.Newobj();
pdf.Append("<<\n");
if (otf.cff)
{
if (simpleFont)
{
pdf.Append("/Subtype /Type1C\n");
}
else
{
pdf.Append("/Subtype /CIDFontType0C\n");
}
}
pdf.Append("/Filter /FlateDecode\n");
pdf.Append("/Length ");
pdf.Append(otf.baos.Length);
pdf.Append("\n");
if (!otf.cff)
{
pdf.Append("/Length1 ");
pdf.Append(otf.buf.Length);
pdf.Append('\n');
}
if (metadataObjNumber != -1)
{
pdf.Append("/Metadata ");
pdf.Append(metadataObjNumber);
pdf.Append(" 0 R\n");
}
pdf.Append(">>\n");
pdf.Append("stream\n");
pdf.Append(otf.baos);
pdf.Append("\nendstream\n");
pdf.Endobj();
font.fileObjNumber = pdf.objNumber;
}
private void EmbedFontFile(
PDF pdf,
Font font,
OTF otf,
bool simpleFont)
{
// Check if the font file is already embedded
for (int i = 0; i < pdf.fonts.Count; i++) {
Font f = pdf.fonts[i];
if (f.name.Equals(otf.fontName) && f.fileObjNumber != -1) {
font.fileObjNumber = f.fileObjNumber;
return;
}
}
int metadataObjNumber = -1;
if (otf.fontName.ToLower().IndexOf("droid") != -1
|| otf.fontName.ToLower().IndexOf("roboto") != -1) {
metadataObjNumber = pdf.AddMetadataObject(AndroidFontsCopyright.NOTICE, true);
}
pdf.Newobj();
pdf.Append("<<\n");
if (otf.cff) {
if (simpleFont) {
pdf.Append("/Subtype /Type1C\n");
}
else {
pdf.Append("/Subtype /CIDFontType0C\n");
}
}
pdf.Append("/Filter /FlateDecode\n");
pdf.Append("/Length ");
pdf.Append(otf.baos.Length);
pdf.Append("\n");
if (!otf.cff) {
pdf.Append("/Length1 ");
pdf.Append(otf.buf.Length);
pdf.Append('\n');
}
if (metadataObjNumber != -1) {
pdf.Append("/Metadata ");
pdf.Append(metadataObjNumber);
pdf.Append(" 0 R\n");
}
pdf.Append(">>\n");
pdf.Append("stream\n");
pdf.Append(otf.baos);
pdf.Append("\nendstream\n");
pdf.Endobj();
font.fileObjNumber = pdf.objNumber;
}
private void AddWidthsArrayObject(
PDF pdf,
Font font,
OTF otf,
int codePage)
{
pdf.Newobj();
pdf.Append("[ ");
int n = 1;
for (int c = otf.firstChar; c < 256; c++) {
if (c < 127) {
pdf.Append((int)
((1000.0f / otf.unitsPerEm) * otf.glyphWidth[c]));
} else {
if (codePage == 0) {
pdf.Append((int) ((1000.0f / otf.unitsPerEm)
* otf.glyphWidth[CP1250.codes[c - 127]]));
} else if (codePage == 1) {
pdf.Append((int) ((1000.0f / otf.unitsPerEm)
* otf.glyphWidth[CP1251.codes[c - 127]]));
} else if (codePage == 2) {
pdf.Append((int) ((1000.0f / otf.unitsPerEm)
* otf.glyphWidth[CP1252.codes[c - 127]]));
} else if (codePage == 3) {
pdf.Append((int) ((1000.0f / otf.unitsPerEm)
* otf.glyphWidth[CP1253.codes[c - 127]]));
} else if (codePage == 4) {
pdf.Append((int) ((1000.0f / otf.unitsPerEm)
* otf.glyphWidth[CP1254.codes[c - 127]]));
} else if (codePage == 7) {
pdf.Append((int) ((1000.0f / otf.unitsPerEm)
* otf.glyphWidth[CP1257.codes[c - 127]]));
}
}
if (n < 10) {
pdf.Append(' ');
++n;
}
else {
pdf.Append('\n');
n = 1;
}
}
pdf.Append("]\n");
pdf.Endobj();
font.SetWidthsArrayObjNumber(pdf.objNumber);
}
private void AddToUnicodeCMapObject(
PDF pdf,
Font font,
OTF otf)
{
for (int i = 0; i < pdf.fonts.Count; i++) {
Font f = pdf.fonts[i];
if (f.name.Equals(otf.fontName) && f.GetToUnicodeCMapObjNumber() != -1) {
font.SetToUnicodeCMapObjNumber(f.GetToUnicodeCMapObjNumber());
return;
}
}
StringBuilder sb = new StringBuilder();
sb.Append("/CIDInit /ProcSet findresource begin\n");
sb.Append("12 dict begin\n");
sb.Append("begincmap\n");
sb.Append("/CIDSystemInfo <</Registry (Adobe) /Ordering (Identity) /Supplement 0>> def\n");
sb.Append("/CMapName /Adobe-Identity def\n");
sb.Append("/CMapType 2 def\n");
sb.Append("1 begincodespacerange\n");
sb.Append("<0000> <FFFF>\n");
sb.Append("endcodespacerange\n");
List<String> list = new List<String>();
StringBuilder buf = new StringBuilder();
for (int cid = 0; cid <= 0xffff; cid++) {
int gid = otf.unicodeToGID[cid];
if (gid > 0) {
buf.Append('<');
buf.Append(ToHexString(gid));
buf.Append("> <");
buf.Append(ToHexString(cid));
buf.Append(">\n");
list.Add(buf.ToString());
buf.Length = 0;
if (list.Count == 100) {
WriteListToBuffer(list, sb);
}
}
}
if (list.Count > 0) {
WriteListToBuffer(list, sb);
}
sb.Append("endcmap\n");
sb.Append("CMapName currentdict /CMap defineresource pop\n");
sb.Append("end\nend");
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Length ");
pdf.Append(sb.Length);
pdf.Append("\n");
pdf.Append(">>\n");
pdf.Append("stream\n");
pdf.Append(sb.ToString());
pdf.Append("\nendstream\n");
pdf.Endobj();
font.SetToUnicodeCMapObjNumber(pdf.objNumber);
}
private void AddFontDescriptorObject(
PDF pdf,
Font font,
OTF otf,
bool embed)
{
float factor = 1000f / otf.unitsPerEm;
for (int i = 0; i < pdf.fonts.Count; i++) {
Font f = pdf.fonts[i];
if (f.name.Equals(otf.fontName) && f.GetFontDescriptorObjNumber() != -1) {
font.SetFontDescriptorObjNumber(f.GetFontDescriptorObjNumber());
return;
}
}
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /FontDescriptor\n");
pdf.Append("/FontName /");
pdf.Append(otf.fontName);
pdf.Append('\n');
if (embed) {
if (otf.cff) {
pdf.Append("/FontFile3 ");
} else {
pdf.Append("/FontFile2 ");
}
pdf.Append(font.fileObjNumber);
pdf.Append(" 0 R\n");
}
pdf.Append("/Flags 32\n");
pdf.Append("/FontBBox [");
pdf.Append(otf.bBoxLLx * factor);
pdf.Append(' ');
pdf.Append(otf.bBoxLLy * factor);
pdf.Append(' ');
pdf.Append(otf.bBoxURx * factor);
pdf.Append(' ');
pdf.Append(otf.bBoxURy * factor);
pdf.Append("]\n");
pdf.Append("/Ascent ");
pdf.Append(otf.ascent * factor);
pdf.Append('\n');
pdf.Append("/Descent ");
pdf.Append(otf.descent * factor);
pdf.Append('\n');
pdf.Append("/ItalicAngle 0\n");
pdf.Append("/CapHeight ");
pdf.Append(otf.capHeight * factor);
pdf.Append('\n');
pdf.Append("/StemV 79\n");
pdf.Append(">>\n");
pdf.Endobj();
font.SetFontDescriptorObjNumber(pdf.objNumber);
}
private void AddCIDFontDictionaryObject(
PDF pdf,
Font font,
OTF otf)
{
for (int i = 0; i < pdf.fonts.Count; i++) {
Font f = pdf.fonts[i];
if (f.name.Equals(otf.fontName) && f.GetCidFontDictObjNumber() != -1) {
font.SetCidFontDictObjNumber(f.GetCidFontDictObjNumber());
return;
}
}
pdf.Newobj();
pdf.Append("<<\n");
pdf.Append("/Type /Font\n");
if (otf.cff) {
pdf.Append("/Subtype /CIDFontType0\n");
} else {
pdf.Append("/Subtype /CIDFontType2\n");
}
pdf.Append("/BaseFont /");
pdf.Append(otf.fontName);
pdf.Append('\n');
pdf.Append("/CIDSystemInfo <</Registry (Adobe) /Ordering (Identity) /Supplement 0>>\n");
pdf.Append("/FontDescriptor ");
pdf.Append(font.GetFontDescriptorObjNumber());
pdf.Append(" 0 R\n");
pdf.Append("/DW ");
pdf.Append((int)
((1000f / otf.unitsPerEm) * otf.advanceWidth[0]));
pdf.Append('\n');
pdf.Append("/W [0[\n");
for (int i = 0; i < otf.advanceWidth.Length; i++) {
pdf.Append((int)
((1000f / otf.unitsPerEm) * otf.advanceWidth[i]));
if ((i + 1) % 10 == 0) {
pdf.Append('\n');
}
else {
pdf.Append(' ');
}
}
pdf.Append("]]\n");
pdf.Append("/CIDToGIDMap /Identity\n");
pdf.Append(">>\n");
pdf.Endobj();
font.SetCidFontDictObjNumber(pdf.objNumber);
}