/// <summary>
/// Note: There is some performance overhead to initializing this.
/// </summary>
private void InitializeFontData()
{
FontNameToFiles = new Dictionary <string, FontGroup>();
if (NoteFontsWeCantInstall)
{
FontsWeCantInstall = new HashSet <string>();
}
#if __MonoCS__
using (var lib = new SharpFont.Library())
{
// Find all the font files in the standard system location (/usr/share/font) and $HOME/.font (if it exists)
foreach (var fontFile in FindLinuxFonts())
{
try
{
using (var face = new SharpFont.Face(lib, fontFile))
{
var embeddingTypes = face.GetFSTypeFlags();
if ((embeddingTypes & EmbeddingTypes.RestrictedLicense) == EmbeddingTypes.RestrictedLicense ||
(embeddingTypes & EmbeddingTypes.BitmapOnly) == EmbeddingTypes.BitmapOnly)
{
if (NoteFontsWeCantInstall)
{
FontsWeCantInstall.Add(face.FamilyName);
}
continue;
}
var name = face.FamilyName;
// If you care about bold, italic, etc, you can filter here.
FontGroup files;
if (!FontNameToFiles.TryGetValue(name, out files))
{
files = new FontGroup();
FontNameToFiles[name] = files;
}
files.Add(face, fontFile);
}
}
catch (Exception)
{
}
}
}
#else
foreach (var fontFile in FindWindowsFonts())
{
GlyphTypeface gtf;
try
{
gtf = new GlyphTypeface(new Uri("file:///" + fontFile));
}
catch (Exception)
{
continue; // file is somehow corrupt or not really a font file? Just ignore it.
}
switch (gtf.EmbeddingRights)
{
case FontEmbeddingRight.Editable:
case FontEmbeddingRight.EditableButNoSubsetting:
case FontEmbeddingRight.Installable:
case FontEmbeddingRight.InstallableButNoSubsetting:
case FontEmbeddingRight.PreviewAndPrint:
case FontEmbeddingRight.PreviewAndPrintButNoSubsetting:
break;
default:
if (NoteFontsWeCantInstall)
{
string name1 = GetFontNameFromFile(fontFile);
if (name1 != null)
{
FontsWeCantInstall.Add(name1);
}
}
continue; // not allowed to embed
}
string name = GetFontNameFromFile(fontFile);
if (name == null)
{
continue; // not sure how this can happen but I've seen it.
}
// If you care about bold, italic, etc, you can filter here.
FontGroup files;
if (!FontNameToFiles.TryGetValue(name, out files))
{
files = new FontGroup();
FontNameToFiles[name] = files;
}
files.Add(gtf, fontFile);
}
#endif
}
/// <summary>
/// Note: There is some performance overhead to initializing this.
/// </summary>
private void InitializeFontData()
{
FontNameToFiles = new Dictionary <string, FontGroup>();
FontsWeCantInstall = new HashSet <string>();
#if __MonoCS__
using (var lib = new SharpFont.Library())
{
// Find all the font files in the standard system location (/usr/share/font) and $HOME/.local/share/fonts (if it exists)
foreach (var fontFile in FindLinuxFonts())
{
try
{
using (var face = new SharpFont.Face(lib, fontFile))
{
var embeddingTypes = face.GetFSTypeFlags();
if ((embeddingTypes & EmbeddingTypes.RestrictedLicense) == EmbeddingTypes.RestrictedLicense ||
(embeddingTypes & EmbeddingTypes.BitmapOnly) == EmbeddingTypes.BitmapOnly)
{
// Our font UI allows any font on the computer, but gives the user indications that some are more
// useable in publishing Bloom books. The NoteFontsWeCantInstall prop is only true when we call this
// from BloomPubMaker so that it can note that certain fonts are unsuitable for embedding in ePUBs.
if (NoteFontsWeCantInstall)
{
FontsWeCantInstall.Add(face.FamilyName);
continue;
}
}
var name = face.FamilyName;
// If you care about bold, italic, etc, you can filter here.
FontGroup files;
if (!FontNameToFiles.TryGetValue(name, out files))
{
files = new FontGroup();
FontNameToFiles[name] = files;
}
files.Add(face, fontFile);
}
}
catch (Exception)
{
continue;
}
}
}
#else
foreach (var fontFile in FindWindowsFonts())
{
GlyphTypeface gtf;
try
{
gtf = new GlyphTypeface(new Uri("file:///" + fontFile));
}
catch (Exception)
{
continue; // file is somehow corrupt or not really a font file? Just ignore it.
}
// Our font UI allows any font on the computer, but gives the user indications that some are more
// useable in publishing Bloom books. The NoteFontsWeCantInstall prop is only true when we call this
// from BloomPubMaker so that it can note that certain fonts are unsuitable for embedding in ePUBs.
if (!FontIsEmbeddable(gtf.EmbeddingRights) && NoteFontsWeCantInstall)
{
string name1 = GetFontNameFromFile(fontFile);
if (name1 != null)
{
FontsWeCantInstall.Add(name1);
}
continue; // not allowed to embed in ePUB
}
string name = GetFontNameFromFile(fontFile);
if (name == null)
{
continue; // not sure how this can happen but I've seen it.
}
// If you care about bold, italic, etc, you can filter here.
FontGroup files;
if (!FontNameToFiles.TryGetValue(name, out files))
{
files = new FontGroup();
FontNameToFiles[name] = files;
}
files.Add(gtf, fontFile);
}
#endif
}
public FontGroup GetGroupForFont(string fontName)
{
// Review Linux: very likely something here is not portable.
if (FontNameToFiles == null)
{
FontNameToFiles = new Dictionary <string, FontGroup>();
#if __MonoCS__
using (var lib = new SharpFont.Library())
{
// Find all the font files in the standard system location (/usr/share/font) and $HOME/.font (if it exists)
foreach (var fontFile in FindLinuxFonts())
{
try
{
using (var face = new SharpFont.Face(lib, fontFile))
{
var embeddingTypes = face.GetFSTypeFlags();
if ((embeddingTypes & EmbeddingTypes.RestrictedLicense) == EmbeddingTypes.RestrictedLicense ||
(embeddingTypes & EmbeddingTypes.BitmapOnly) == EmbeddingTypes.BitmapOnly)
{
continue;
}
var name = face.FamilyName;
// If you care about bold, italic, etc, you can filter here.
FontGroup files;
if (!FontNameToFiles.TryGetValue(name, out files))
{
files = new FontGroup();
FontNameToFiles[name] = files;
}
files.Add(face, fontFile);
}
}
catch (Exception)
{
}
}
}
#else
foreach (var fontFile in Directory.GetFiles(Environment.GetFolderPath(Environment.SpecialFolder.Fonts)))
{
// ePUB only understands these types, so skip anything else.
switch (Path.GetExtension(fontFile))
{
case ".ttf":
case ".otf":
case ".woff":
break;
default:
continue;
}
GlyphTypeface gtf;
try
{
gtf = new GlyphTypeface(new Uri("file:///" + fontFile));
}
catch (Exception)
{
continue; // file is somehow corrupt or not really a font file? Just ignore it.
}
switch (gtf.EmbeddingRights)
{
case FontEmbeddingRight.Editable:
case FontEmbeddingRight.EditableButNoSubsetting:
case FontEmbeddingRight.Installable:
case FontEmbeddingRight.InstallableButNoSubsetting:
case FontEmbeddingRight.PreviewAndPrint:
case FontEmbeddingRight.PreviewAndPrintButNoSubsetting:
break;
default:
continue; // not allowed to embed (enhance: warn user?)
}
var fc = new PrivateFontCollection();
try
{
fc.AddFontFile(fontFile);
}
catch (FileNotFoundException)
{
continue; // not sure how this can happen but I've seen it.
}
var name = fc.Families[0].Name;
// If you care about bold, italic, etc, you can filter here.
FontGroup files;
if (!FontNameToFiles.TryGetValue(name, out files))
{
files = new FontGroup();
FontNameToFiles[name] = files;
}
files.Add(gtf, fontFile);
}
#endif
}
FontGroup result;
FontNameToFiles.TryGetValue(fontName, out result);
return(result);
}
public FontGroup GetGroupForFont(string fontName)
{
// Review Linux: very likely something here is not portable.
if (FontNameToFiles == null)
{
FontNameToFiles = new Dictionary<string, FontGroup>();
#if __MonoCS__
using (var lib = new SharpFont.Library())
{
// Find all the font files in the standard system location (/usr/share/font) and $HOME/.font (if it exists)
foreach (var fontFile in FindLinuxFonts())
{
try
{
using (var face = new SharpFont.Face(lib, fontFile))
{
var embeddingTypes = face.GetFSTypeFlags();
if ((embeddingTypes & EmbeddingTypes.RestrictedLicense) == EmbeddingTypes.RestrictedLicense ||
(embeddingTypes & EmbeddingTypes.BitmapOnly) == EmbeddingTypes.BitmapOnly)
{
continue;
}
var name = face.FamilyName;
// If you care about bold, italic, etc, you can filter here.
FontGroup files;
if (!FontNameToFiles.TryGetValue(name, out files))
{
files = new FontGroup();
FontNameToFiles[name] = files;
}
files.Add(face, fontFile);
}
}
catch (Exception)
{
}
}
}
#else
foreach (var fontFile in Directory.GetFiles(Environment.GetFolderPath(Environment.SpecialFolder.Fonts)))
{
// ePUB only understands these types, so skip anything else.
switch (Path.GetExtension(fontFile))
{
case ".ttf":
case ".otf":
case ".woff":
break;
default:
continue;
}
GlyphTypeface gtf;
try
{
gtf = new GlyphTypeface(new Uri("file:///" + fontFile));
}
catch (Exception)
{
continue; // file is somehow corrupt or not really a font file? Just ignore it.
}
switch (gtf.EmbeddingRights)
{
case FontEmbeddingRight.Editable:
case FontEmbeddingRight.EditableButNoSubsetting:
case FontEmbeddingRight.Installable:
case FontEmbeddingRight.InstallableButNoSubsetting:
case FontEmbeddingRight.PreviewAndPrint:
case FontEmbeddingRight.PreviewAndPrintButNoSubsetting:
break;
default:
continue; // not allowed to embed (enhance: warn user?)
}
var fc = new PrivateFontCollection();
try
{
fc.AddFontFile(fontFile);
}
catch (FileNotFoundException)
{
continue; // not sure how this can happen but I've seen it.
}
var name = fc.Families[0].Name;
// If you care about bold, italic, etc, you can filter here.
FontGroup files;
if (!FontNameToFiles.TryGetValue(name, out files))
{
files = new FontGroup();
FontNameToFiles[name] = files;
}
files.Add(gtf, fontFile);
}
#endif
}
FontGroup result;
FontNameToFiles.TryGetValue(fontName, out result);
return result;
}
