unsafe public FontFace CreateFontFace(Uri filePathUri, uint faceIndex, FontSimulations fontSimulationFlags)
{
FontFile fontFile = CreateFontFile(filePathUri);
FontFileType dwriteFontFileType;
FontFaceType dwriteFontFaceType;
uint numberOfFaces = 0;
int hr;
if (fontFile.Analyze(
out dwriteFontFileType,
out dwriteFontFaceType,
out numberOfFaces,
out hr
))
{
if (faceIndex >= numberOfFaces)
{
throw new ArgumentOutOfRangeException("faceIndex");
}
IntPtr dwriteFontFace = IntPtr.Zero; // IDWriteFontFace
IntPtr dwriteFontFile = fontFile.DWriteFontFileIface;
try {
dwriteFontFace = _pFactory.CreateFontFace(
dwriteFontFaceType,
1,
&dwriteFontFile,
faceIndex,
fontSimulationFlags
);
}
finally {
Marshal.Release(dwriteFontFile);
}
return(new FontFace(dwriteFontFace));
}
// This path is here because there is a behavior mismatch between DWrite and WPF.
// If a directory was given instead of a font uri WPF previously throws
// System.UnauthorizedAccessException. We handle most of the exception behavior mismatch
// in FontFile^ Factory::CreateFontFile by opening the file using WPF's previous (prior to DWrite integration) logic if
// CreateFontFileReference fails (please see comments in FontFile^ Factory::CreateFontFile).
// However in this special case DWrite's CreateFontFileReference will succeed if given
// a directory instead of a font file and it is the Analyze() call will fail returning DWRITE_E_FILEFORMAT.
// Thus, incase the hr returned from Analyze() was DWRITE_E_FILEFORMAT we do as we did in FontFile^ Factory::CreateFontFile
// to try and open the file using WPF old logic and throw System.UnauthorizedAccessException as WPF used to do.
// If a file format exception is expected then opening the file should succeed and ConvertHresultToException()
// Should throw the correct exception.
// A final note would be that this overhead is only incurred in error conditions and so the normal execution path should
// not be affected.
else
{
if (hr == unchecked ((int)0x88985000)) // DWRITE_E_FILEFORMAT
{
IFontSource fontSource = _fontSourceFactory.Create(filePathUri.AbsoluteUri);
fontSource.TestFileOpenable();
}
Marshal.ThrowExceptionForHR(hr);
}
return(null);
}
/// <summary>
/// Creates an object that represents a font face.
/// </summary>
/// <param name="factory">A reference to a DirectWrite factory <see cref="Factory"/></param>
/// <param name="fontFaceType">A value that indicates the type of file format of the font face. </param>
/// <param name="fontFiles">A font file object representing the font face. Because<see cref="T:SharpDX.DirectWrite.FontFace" /> maintains its own references to the input font file objects, you may release them after this call. </param>
/// <param name="faceIndex">The zero-based index of a font face, in cases when the font files contain a collection of font faces. If the font files contain a single face, this value should be zero. </param>
/// <param name="fontFaceSimulationFlags">A value that indicates which, if any, font face simulation flags for algorithmic means of making text bold or italic are applied to the current font face. </param>
/// <unmanaged>HRESULT IDWriteFactory::CreateFontFace([None] DWRITE_FONT_FACE_TYPE fontFaceType,[None] int numberOfFiles,[In, Buffer] const IDWriteFontFile** fontFiles,[None] int faceIndex,[None] DWRITE_FONT_SIMULATIONS fontFaceSimulationFlags,[Out] IDWriteFontFace** fontFace)</unmanaged>
public FontFace(Factory factory, FontFaceType fontFaceType, FontFile[] fontFiles, int faceIndex, FontSimulations fontFaceSimulationFlags)
{
factory.CreateFontFace(fontFaceType, fontFiles.Length, fontFiles, faceIndex, fontFaceSimulationFlags, this);
}
/// <summary>
/// Creates an object that represents a font face.
/// </summary>
/// <param name="factory">A reference to a DirectWrite factory <see cref="Factory"/></param>
/// <param name="fontFaceType">A value that indicates the type of file format of the font face. </param>
/// <param name="fontFiles">A font file object representing the font face. Because<see cref="T:SharpDX.DirectWrite.FontFace" /> maintains its own references to the input font file objects, you may release them after this call. </param>
/// <param name="faceIndex">The zero-based index of a font face, in cases when the font files contain a collection of font faces. If the font files contain a single face, this value should be zero. </param>
/// <param name="fontFaceSimulationFlags">A value that indicates which, if any, font face simulation flags for algorithmic means of making text bold or italic are applied to the current font face. </param>
/// <unmanaged>HRESULT IDWriteFactory::CreateFontFace([None] DWRITE_FONT_FACE_TYPE fontFaceType,[None] int numberOfFiles,[In, Buffer] const IDWriteFontFile** fontFiles,[None] int faceIndex,[None] DWRITE_FONT_SIMULATIONS fontFaceSimulationFlags,[Out] IDWriteFontFace** fontFace)</unmanaged>
public FontFace(Factory factory, FontFaceType fontFaceType, FontFile[] fontFiles, int faceIndex, FontSimulations fontFaceSimulationFlags)
{
factory.CreateFontFace(fontFaceType, fontFiles.Length, fontFiles, faceIndex, fontFaceSimulationFlags, this);
}
/// <summary>
/// Creates an object that represents a font face.
/// </summary>
/// <param name="fontFaceType">A value that indicates the type of file format of the font face.</param>
/// <param name="fontFiles">A font file object representing the font face. Because <see cref="IDWriteFontFace"/> maintains its own references to the input font file objects, you may release them after this call.</param>
/// <param name="faceIndex">The zero-based index of a font face, in cases when the font files contain a collection of font faces. If the font files contain a single face, this value should be zero.</param>
/// <param name="fontFaceSimulationFlags">A value that indicates which, if any, font face simulation flags for algorithmic means of making text bold or italic are applied to the current font face.</param>
/// <returns>Instance of <see cref="IDWriteFontFace"/> or null if failed.</returns>
public IDWriteFontFace CreateFontFace(FontFaceType fontFaceType, IDWriteFontFile[] fontFiles, int faceIndex = 0, FontSimulations fontFaceSimulationFlags = FontSimulations.None)
{
Guard.NotNullOrEmpty(fontFiles, nameof(fontFiles));
var result = CreateFontFace(
fontFaceType,
fontFiles.Length, fontFiles,
faceIndex,
fontFaceSimulationFlags,
out IDWriteFontFace fontFace);
return(result.Failure ? null : fontFace);
}
internal FontFace CreateFontFace(Uri filePathUri, uint faceIndex, FontSimulations fontSimulationFlags)
{
}
/// <summary>
/// Creates an object that represents a font face.
/// </summary>
/// <param name="fontFaceType">A value that indicates the type of file format of the font face.</param>
/// <param name="fontFiles">A font file object representing the font face. Because <see cref="IDWriteFontFace"/> maintains its own references to the input font file objects, you may release them after this call.</param>
/// <param name="faceIndex">The zero-based index of a font face, in cases when the font files contain a collection of font faces. If the font files contain a single face, this value should be zero.</param>
/// <param name="fontFaceSimulationFlags">A value that indicates which, if any, font face simulation flags for algorithmic means of making text bold or italic are applied to the current font face.</param>
/// <returns>Instance of <see cref="IDWriteFontFace"/> or null if failed.</returns>
public IDWriteFontFace CreateFontFace(FontFaceType fontFaceType, IDWriteFontFile[] fontFiles, int faceIndex = 0, FontSimulations fontFaceSimulationFlags = FontSimulations.None)
{
var result = CreateFontFace(
fontFaceType,
fontFiles.Length, fontFiles,
faceIndex,
fontFaceSimulationFlags,
out var fontFace);
return(result.Failure ? null : fontFace);
}
internal FontFace CreateFontFace(Uri filePathUri, uint faceIndex, FontSimulations fontSimulationFlags)
{
throw new NotImplementedException();
}
internal static byte Convert(FontSimulations fontSimulations)
{
}
