/// <summary>
/// Prepares the object to get saved.
/// </summary>
internal override void PrepareForSave()
{
base.PrepareForSave();
#if DEBUG_
if (FontDescriptor._descriptor.FontFace.loca == null)
{
GetType();
}
#endif
// CID fonts must be always embedded. PDFsharp embeds automatically a subset.
OpenTypeFontface subSet = null;
if (FontDescriptor._descriptor.FontFace.loca == null)
{
subSet = FontDescriptor._descriptor.FontFace;
}
else
{
subSet = FontDescriptor._descriptor.FontFace.CreateFontSubSet(_cmapInfo.GlyphIndices, true);
}
byte[] fontData = subSet.FontSource.Bytes;
PdfDictionary fontStream = new PdfDictionary(Owner);
Owner.Internals.AddObject(fontStream);
FontDescriptor.Elements[PdfFontDescriptor.Keys.FontFile2] = fontStream.Reference;
fontStream.Elements["/Length1"] = new PdfInteger(fontData.Length);
if (!Owner.Options.NoCompression)
{
fontData = Filtering.FlateDecode.Encode(fontData, _document.Options.FlateEncodeMode);
fontStream.Elements["/Filter"] = new PdfName("/FlateDecode");
}
fontStream.Elements["/Length"] = new PdfInteger(fontData.Length);
fontStream.CreateStream(fontData);
}
/// <summary>
/// Prepares the object to get saved.
/// </summary>
internal override void PrepareForSave()
{
base.PrepareForSave();
// Fonts are always embedded.
OpenTypeFontface subSet = FontDescriptor._descriptor.FontFace.CreateFontSubSet(_cmapInfo.GlyphIndices, false);
byte[] fontData = subSet.FontSource.Bytes;
PdfDictionary fontStream = new PdfDictionary(Owner);
Owner.Internals.AddObject(fontStream);
FontDescriptor.Elements[PdfFontDescriptor.Keys.FontFile2] = fontStream.Reference;
fontStream.Elements["/Length1"] = new PdfInteger(fontData.Length);
if (!Owner.Options.NoCompression)
{
fontData = Filtering.FlateDecode.Encode(fontData, _document.Options.FlateEncodeMode);
fontStream.Elements["/Filter"] = new PdfName("/FlateDecode");
}
fontStream.Elements["/Length"] = new PdfInteger(fontData.Length);
fontStream.CreateStream(fontData);
FirstChar = 0;
LastChar = 255;
PdfArray width = Widths;
//width.Elements.Clear();
for (int idx = 0; idx < 256; idx++)
{
width.Elements.Add(new PdfInteger(FontDescriptor._descriptor.Widths[idx]));
}
}
const string KeyPrefix = "tk:"; // "typeface key"
XGlyphTypeface(string key, XFontFamily fontFamily, XFontSource fontSource, XStyleSimulations styleSimulations)
{
_key = key;
_fontFamily = fontFamily;
_fontSource = fontSource;
_fontface = OpenTypeFontface.CetOrCreateFrom(fontSource);
Debug.Assert(ReferenceEquals(_fontSource.Fontface, _fontface));
_styleSimulations = styleSimulations;
Initialize();
}
/// <summary>
/// Caches a font source under its face name and its key.
/// </summary>
public static XFontSource CacheFontSource(XFontSource fontSource)
{
try
{
Lock.EnterFontFactory();
// Check whether an identical font source with a different face name already exists.
XFontSource existingFontSource;
if (FontSourcesByKey.TryGetValue(fontSource.Key, out existingFontSource))
{
#if DEBUG
// Fonts have same length and check sum. Now check byte by byte identity.
int length = fontSource.Bytes.Length;
for (int idx = 0; idx < length; idx++)
{
if (existingFontSource.Bytes[idx] != fontSource.Bytes[idx])
{
//Debug.Assert(false,"Two fonts with identical checksum found.");
break;
//goto FontsAreNotIdentical;
}
}
Debug.Assert(existingFontSource.Fontface != null);
#endif
return(existingFontSource);
//FontsAreNotIdentical:
//// Incredible rare case: Two different fonts have the same size and check sum.
//// Give the new one a new key until it do not clash with an existing one.
//while (FontSourcesByKey.ContainsKey(fontSource.Key))
// fontSource.IncrementKey();
}
OpenTypeFontface fontface = fontSource.Fontface;
if (fontface == null)
{
// Create OpenType fontface for this font source.
fontSource.Fontface = new OpenTypeFontface(fontSource);
}
FontSourcesByKey.Add(fontSource.Key, fontSource);
if (FontSourcesByName.ContainsKey(fontSource.FontName))
{
// TODO: merge font faces?..
}
else
{
FontSourcesByName.Add(fontSource.FontName, fontSource);
}
return(fontSource);
}
finally { Lock.ExitFontFactory(); }
}
const string KeyPrefix = "tk:"; // "typeface key"
#if CORE || GDI
XGlyphTypeface(string key, XFontFamily fontFamily, XFontSource fontSource, XStyleSimulations styleSimulations, GdiFont gdiFont)
{
Key = key;
FontFamily = fontFamily;
FontSource = fontSource;
Fontface = OpenTypeFontface.CetOrCreateFrom(fontSource);
Debug.Assert(ReferenceEquals(FontSource.Fontface, Fontface));
GdiFont = gdiFont;
StyleSimulations = styleSimulations;
Initialize();
}
/// <summary>
/// Caches a font source under its face name and its key.
/// </summary>
public static XFontSource CacheNewFontSource(string typefaceKey, XFontSource fontSource)
{
// Debug.Assert(!FontSourcesByFaceName.ContainsKey(fontSource.FaceName));
// Check whether an identical font source with a different face name already exists.
XFontSource existingFontSource;
if (FontSourcesByKey.TryGetValue(fontSource.Key, out existingFontSource))
{
//// Fonts have same length and check sum. Now check byte by byte identity.
//int length = fontSource.Bytes.Length;
//for (int idx = 0; idx < length; idx++)
//{
// if (existingFontSource.Bytes[idx] != fontSource.Bytes[idx])
// {
// goto FontsAreNotIdentical;
// }
//}
return(existingFontSource);
////// The bytes are really identical. Register font source again with the new face name
////// but return the existing one to save memory.
////FontSourcesByFaceName.Add(fontSource.FaceName, existingFontSource);
////return existingFontSource;
//FontsAreNotIdentical:
//// Incredible rare case: Two different fonts have the same size and check sum.
//// Give the new one a new key until it do not clash with an existing one.
//while (FontSourcesByKey.ContainsKey(fontSource.Key))
// fontSource.IncrementKey();
}
OpenTypeFontface fontface = fontSource.Fontface;
if (fontface == null)
{
fontface = new OpenTypeFontface(fontSource);
fontSource.Fontface = fontface; // Also sets the font name in fontSource
}
FontSourcesByName.Add(typefaceKey, fontSource);
FontSourcesByName.Add(fontSource.FontName, fontSource);
FontSourcesByKey.Add(fontSource.Key, fontSource);
return(fontSource);
}
const string KeyPrefix = "tk:"; // "typeface key"
#if CORE || GDI
XGlyphTypeface(string key, XFontFamily fontFamily, XFontSource fontSource, XStyleSimulations styleSimulations
#if !WITHOUT_DRAWING
, GdiFont gdiFont
#endif
)
{
_key = key;
_fontFamily = fontFamily;
_fontSource = fontSource;
_fontface = OpenTypeFontface.CetOrCreateFrom(fontSource);
Debug.Assert(ReferenceEquals(_fontSource.Fontface, _fontface));
#if !WITHOUT_DRAWING
_gdiFont = gdiFont;
#endif
_styleSimulations = styleSimulations;
Initialize();
}
public GenericFontTable(OpenTypeFontface fontData, string tag)
: base(fontData, tag)
{
_fontData = fontData;
}
public GenericFontTable(OpenTypeFontface fontData, string tag)
: base(fontData, tag)
{
_fontData = fontData;
}