static NativeFontFace LoadFreeTypeFontFace(InstalledFont installedFont)
{
//if not found
//then load it
byte[] fontFileContent = File.ReadAllBytes(installedFont.FontPath);
int filelen = fontFileContent.Length;
IntPtr unmanagedMem = Marshal.AllocHGlobal(filelen);
Marshal.Copy(fontFileContent, 0, unmanagedMem, filelen);
//---------------------------------------------------
//convert font point size to pixel size
//---------------------------------------------------
//load font from memory
IntPtr faceHandle = NativeMyFontsLib.MyFtNewMemoryFace(unmanagedMem, filelen);
if (faceHandle == IntPtr.Zero)
{
//error
//load font error
Marshal.FreeHGlobal(unmanagedMem);
return null;
}
//-------------------------------------------------------
NativeFontFace fontFace = new NativeFontFace(unmanagedMem, faceHandle, installedFont.FontName,
installedFont.FontPath, FontStyle.Regular);
fontFace.LoadFromFilename = installedFont.FontPath;
ExportTypeFaceInfo exportTypeInfo = new ExportTypeFaceInfo();
NativeMyFontsLib.MyFtGetFaceInfo(faceHandle, ref exportTypeInfo);
fontFace.HasKerning = exportTypeInfo.hasKerning;
//-------------------------------------------------------
return fontFace;
}
static NativeFontFace LoadFreeTypeFontFace(InstalledFont installedFont)
{
//if not found
//then load it
byte[] fontFileContent = File.ReadAllBytes(installedFont.FontPath);
int filelen = fontFileContent.Length;
IntPtr unmanagedMem = Marshal.AllocHGlobal(filelen);
Marshal.Copy(fontFileContent, 0, unmanagedMem, filelen);
//---------------------------------------------------
//convert font point size to pixel size
//---------------------------------------------------
//load font from memory
IntPtr faceHandle = NativeMyFontsLib.MyFtNewMemoryFace(unmanagedMem, filelen);
if (faceHandle == IntPtr.Zero)
{
//error
//load font error
Marshal.FreeHGlobal(unmanagedMem);
return(null);
}
//-------------------------------------------------------
NativeFontFace fontFace = new NativeFontFace(unmanagedMem, faceHandle, installedFont.FontName,
installedFont.FontPath, FontStyle.Regular);
fontFace.LoadFromFilename = installedFont.FontPath;
ExportTypeFaceInfo exportTypeInfo = new ExportTypeFaceInfo();
NativeMyFontsLib.MyFtGetFaceInfo(faceHandle, ref exportTypeInfo);
fontFace.HasKerning = exportTypeInfo.hasKerning;
//-------------------------------------------------------
return(fontFace);
}
public static FontFace LoadFont(InstalledFont installedFont, string lang, HBDirection direction, int defaultScriptCode = 0)
{
NativeFontFace fontFace = LoadFreeTypeFontFace(installedFont);
SetShapingEngine(fontFace, lang, direction, defaultScriptCode);
return(fontFace);
}
//static ActualFont LoadFont(InstalledFont installedFont,
// float sizeInPoints,
// string lang,
// HBDirection direction,
// int scriptCode)
//{
// //load font from specific file
// NativeFontFace fontFace;
// //if not found
// //then load it
// byte[] fontFileContent = File.ReadAllBytes(installedFont.FontPath);
// int filelen = fontFileContent.Length;
// IntPtr unmanagedMem = Marshal.AllocHGlobal(filelen);
// Marshal.Copy(fontFileContent, 0, unmanagedMem, filelen);
// //---------------------------------------------------
// //convert font point size to pixel size
// //---------------------------------------------------
// //load font from memory
// IntPtr faceHandle = NativeMyFontsLib.MyFtNewMemoryFace(unmanagedMem, filelen);
// if (faceHandle != IntPtr.Zero)
// {
// //ok pass
// //-------------------
// //test change font size
// //NativeMyFontsLib.MyFtSetCharSize(faceHandle,
// // 0, //char_width in 1/64th of points, value 0 => same as height
// // 16 * 64,//16 pt //char_height in 1*64 of ppoints
// // 96,//horizontal device resolution (eg screen resolution 96 dpi)
// // 96);// vertical device resolution
// //-------------------
// //TODO: review here
// fontFace = new NativeFontFace(unmanagedMem, faceHandle, installedFont.FontName, FontStyle.Regular);
// fontFace.LoadFromFilename = installedFont.FontPath;
// ExportTypeFaceInfo exportTypeInfo = new ExportTypeFaceInfo();
// NativeMyFontsLib.MyFtGetFaceInfo(faceHandle, ref exportTypeInfo);
// fontFace.HasKerning = exportTypeInfo.hasKerning;
// //for shaping engine***
// //SetShapingEngine(fontFace,
// // lang,
// // defaultHbDirection,
// // defaultScriptCode);
// //-------------------
// //uint glyphIndex1;
// //int char1 = NativeMyFontsLib.MyFtGetFirstChar(faceHandle, out glyphIndex1);
// //List<CharAndGlyphMap> charMap = new List<CharAndGlyphMap>();
// //while (char1 != 0)
// //{
// // char c = (char)char1;
// // charMap.Add(new CharAndGlyphMap(glyphIndex1, c));
// // char1 = NativeMyFontsLib.MyFtGetNextChar(faceHandle, char1, out glyphIndex1);
// //}
// //-------------------
// //load glyph map
// }
// else
// {
// //load font error
// Marshal.FreeHGlobal(unmanagedMem);
// }
// //-------------------------------------------------
// //get font that specific size from found font face
// //-------------------------------------------------
// NativeFont nativeFont = fontFace.GetFontAtPointSize(sizeInPoints);
// //TODO: review here again, not hard code
// var fontKey = new FontKey(installedFont.FontName, sizeInPoints, FontStyle.Regular);
// registerFonts.Add(fontKey, nativeFont);
// return nativeFont;
//}
static void SetShapingEngine(NativeFontFace fontFace, string lang, HBDirection hb_direction, int hb_scriptcode)
{
ExportTypeFaceInfo exportTypeInfo = new ExportTypeFaceInfo();
NativeMyFontsLib.MyFtSetupShapingEngine(fontFace.Handle,
lang,
lang.Length,
hb_direction,
hb_scriptcode,
ref exportTypeInfo);
fontFace.HBFont = exportTypeInfo.hb_font;
}
internal NativeFont(NativeFontFace ownerFace, string fontName, FontStyle fontStyle, int pixelSize)
{
this.fontName = fontName;
this.fontStyle = fontStyle;
//store unmanage font file information
this.ownerFace = ownerFace;
this.fontSizeInPixelUnit = pixelSize;
this.fontStyle = fontStyle;
int ascentEmSize = ownerFace.Ascent / ownerFace.UnitPerEm;
fontFaceAscentInPx = RequestFont.ConvEmSizeInPointsToPixels(ascentEmSize);
int descentEmSize = ownerFace.Descent / ownerFace.UnitPerEm;
fontFaceDescentInPx = RequestFont.ConvEmSizeInPointsToPixels(descentEmSize);
int lineGap = ownerFace.LineGapInDzUnit / ownerFace.UnitPerEm;
lineGapInPx = RequestFont.ConvEmSizeInPointsToPixels(lineGap);
}
internal NativeFont(NativeFontFace ownerFace, string fontName, FontStyle fontStyle, int pixelSize)
{
this.fontName = fontName;
this.fontStyle = fontStyle;
//store unmanage font file information
this.ownerFace = ownerFace;
this.fontSizeInPixelUnit = pixelSize;
this.fontStyle = fontStyle;
int ascentEmSize = ownerFace.Ascent / ownerFace.UnitPerEm;
fontFaceAscentInPx = RequestFont.ConvEmSizeInPointsToPixels(ascentEmSize);
int descentEmSize = ownerFace.Descent / ownerFace.UnitPerEm;
fontFaceDescentInPx = RequestFont.ConvEmSizeInPointsToPixels(descentEmSize);
int lineGap = ownerFace.LineGapInDzUnit / ownerFace.UnitPerEm;
lineGapInPx = RequestFont.ConvEmSizeInPointsToPixels(lineGap);
}
//static ActualFont LoadFont(InstalledFont installedFont,
// float sizeInPoints,
// string lang,
// HBDirection direction,
// int scriptCode)
//{
// //load font from specific file
// NativeFontFace fontFace;
// //if not found
// //then load it
// byte[] fontFileContent = File.ReadAllBytes(installedFont.FontPath);
// int filelen = fontFileContent.Length;
// IntPtr unmanagedMem = Marshal.AllocHGlobal(filelen);
// Marshal.Copy(fontFileContent, 0, unmanagedMem, filelen);
// //---------------------------------------------------
// //convert font point size to pixel size
// //---------------------------------------------------
// //load font from memory
// IntPtr faceHandle = NativeMyFontsLib.MyFtNewMemoryFace(unmanagedMem, filelen);
// if (faceHandle != IntPtr.Zero)
// {
// //ok pass
// //-------------------
// //test change font size
// //NativeMyFontsLib.MyFtSetCharSize(faceHandle,
// // 0, //char_width in 1/64th of points, value 0 => same as height
// // 16 * 64,//16 pt //char_height in 1*64 of ppoints
// // 96,//horizontal device resolution (eg screen resolution 96 dpi)
// // 96);// vertical device resolution
// //-------------------
// //TODO: review here
// fontFace = new NativeFontFace(unmanagedMem, faceHandle, installedFont.FontName, FontStyle.Regular);
// fontFace.LoadFromFilename = installedFont.FontPath;
// ExportTypeFaceInfo exportTypeInfo = new ExportTypeFaceInfo();
// NativeMyFontsLib.MyFtGetFaceInfo(faceHandle, ref exportTypeInfo);
// fontFace.HasKerning = exportTypeInfo.hasKerning;
// //for shaping engine***
// //SetShapingEngine(fontFace,
// // lang,
// // defaultHbDirection,
// // defaultScriptCode);
// //-------------------
// //uint glyphIndex1;
// //int char1 = NativeMyFontsLib.MyFtGetFirstChar(faceHandle, out glyphIndex1);
// //List<CharAndGlyphMap> charMap = new List<CharAndGlyphMap>();
// //while (char1 != 0)
// //{
// // char c = (char)char1;
// // charMap.Add(new CharAndGlyphMap(glyphIndex1, c));
// // char1 = NativeMyFontsLib.MyFtGetNextChar(faceHandle, char1, out glyphIndex1);
// //}
// //-------------------
// //load glyph map
// }
// else
// {
// //load font error
// Marshal.FreeHGlobal(unmanagedMem);
// }
// //-------------------------------------------------
// //get font that specific size from found font face
// //-------------------------------------------------
// NativeFont nativeFont = fontFace.GetFontAtPointSize(sizeInPoints);
// //TODO: review here again, not hard code
// var fontKey = new FontKey(installedFont.FontName, sizeInPoints, FontStyle.Regular);
// registerFonts.Add(fontKey, nativeFont);
// return nativeFont;
//}
static void SetShapingEngine(NativeFontFace fontFace, string lang, HBDirection hb_direction, int hb_scriptcode)
{
ExportTypeFaceInfo exportTypeInfo = new ExportTypeFaceInfo();
NativeMyFontsLib.MyFtSetupShapingEngine(fontFace.Handle,
lang,
lang.Length,
hb_direction,
hb_scriptcode,
ref exportTypeInfo);
fontFace.HBFont = exportTypeInfo.hb_font;
}