/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
if (v.PerformTest(T.OS_2_Version))
{
if (version == 0 || version == 1 || version == 2)
{
v.Warning(T.OS_2_Version, W.OS_2_W_Version_old, m_tag, version.ToString());
}
else if (version == 3)
{
v.Pass(T.OS_2_Version, P.OS_2_P_Version, m_tag, version.ToString());
}
else
{
v.Error(T.OS_2_Version, E.OS_2_E_Version, m_tag, version.ToString());
bRet = false;
}
}
if (v.PerformTest(T.OS_2_TableLength))
{
uint len = GetLength();
if ((version == 0 && len == 78)
|| (version == 1 && len == 86)
|| (version == 2 && len == 96)
|| (version == 3 && len == 96))
{
v.Pass(T.OS_2_TableLength, P.OS_2_P_TableLength, m_tag);
}
else
{
v.Error(T.OS_2_TableLength, E.OS_2_E_TableLength, m_tag);
bRet = false;
}
}
if (!bRet)
{
v.Warning(T.T_NULL, W._TEST_W_OtherErrorsInTable, m_tag, "OS/2 table appears to be corrupt. No further tests will be performed.");
return bRet;
}
if (v.PerformTest(T.OS_2_xAvgCharWidth))
{
if (fontOwner.GetTable("maxp") == null)
{
v.Warning(T.OS_2_xAvgCharWidth, W._TEST_W_ErrorInAnotherTable, m_tag, "maxp table inaccessible, can't check Avg Char Width");
}
else
{
if (fontOwner.ContainsTrueTypeOutlines())
{
Table_hmtx hmtxTable = (Table_hmtx)fontOwner.GetTable("hmtx");
val_loca locaTable = (val_loca)fontOwner.GetTable("loca");
val_maxp maxpTable = (val_maxp)fontOwner.GetTable("maxp");
if (hmtxTable == null)
{
v.Error(T.OS_2_xAvgCharWidth, E._TEST_E_TableMissing, m_tag, "hmtx");
bRet = false;
}
else if (locaTable == null)
{
v.Error(T.OS_2_xAvgCharWidth, E._TEST_E_TableMissing, m_tag, "loca");
bRet = false;
}
else if (maxpTable == null)
{
v.Error(T.OS_2_xAvgCharWidth, E._TEST_E_TableMissing, m_tag, "maxp");
bRet = false;
}
else
{
if ( version == 3
|| fontOwner.ContainsMsSymbolEncodedCmap())
{
int nTotalWidth = 0;
int nTotalGlyphs = 0;
for (uint iGlyph=0; iGlyph<fontOwner.GetMaxpNumGlyphs(); iGlyph++)
{
Table_hmtx.longHorMetric hm = hmtxTable.GetOrMakeHMetric(iGlyph, fontOwner);
if (hm != null)
{
nTotalWidth += hm.advanceWidth;
// only average non-zero width glyphs
if (hm.advanceWidth > 0)
{
nTotalGlyphs ++;
}
}
}
short CalcAvgWidth = 0;
if (nTotalGlyphs > 0)
CalcAvgWidth = (short)(nTotalWidth / nTotalGlyphs);
if (xAvgCharWidth == CalcAvgWidth)
{
v.Pass(T.OS_2_xAvgCharWidth, P.OS_2_P_xAvgCharWidth, m_tag);
}
else
{
string s = "actual = " + xAvgCharWidth + ", calc = " + CalcAvgWidth;
v.Error(T.OS_2_xAvgCharWidth, E.OS_2_E_xAvgCharWidth, m_tag, s);
bRet = false;
}
}
else
{
// do weighed average
ushort [] weightLC = {
64, 14, 27, 35, 100, 20, 14, 42, 63, 3, 6, 35, 20,
56, 56, 17, 4, 49, 56, 71, 31, 10, 18, 3, 18, 2
};
ushort weightSpace = 166;
try
{
uint iSpaceGlyph = fontOwner.FastMapUnicodeToGlyphID(' ');
if (iSpaceGlyph >= fontOwner.GetMaxpNumGlyphs())
{
throw new ApplicationException("error in cmap table");
}
Table_hmtx.longHorMetric hmSpace = hmtxTable.GetOrMakeHMetric(iSpaceGlyph, fontOwner);
if (hmSpace != null)
{
int nTotalWeight = hmSpace.advanceWidth * weightSpace;
int nLowerCase = 0;
for (char c = 'a'; c <= 'z'; c++)
{
uint iGlyph = fontOwner.FastMapUnicodeToGlyphID(c);
if (iGlyph > 0
&& iGlyph < fontOwner.GetMaxpNumGlyphs())
{
nLowerCase ++;
Table_hmtx.longHorMetric hm = hmtxTable.GetOrMakeHMetric(iGlyph, fontOwner);
nTotalWeight += hm.advanceWidth * weightLC[c-'a'];
}
}
short CalcAvgWidth = 0;
if (nLowerCase == 26)
{
CalcAvgWidth = (short)(nTotalWeight / 1000);
}
else
{
int nTotalWidth = 0;
int nTotalGlyphs = 0;
for (uint iGlyph=0; iGlyph<fontOwner.GetMaxpNumGlyphs(); iGlyph++)
{
Table_hmtx.longHorMetric hm = hmtxTable.GetOrMakeHMetric(iGlyph, fontOwner);
nTotalWidth += hm.advanceWidth;
nTotalGlyphs ++;
}
CalcAvgWidth = (short)(nTotalWidth / nTotalGlyphs);
}
if (xAvgCharWidth == CalcAvgWidth)
{
v.Pass(T.OS_2_xAvgCharWidth, P.OS_2_P_xAvgCharWidth, m_tag);
}
else
{
string s = "actual = " + xAvgCharWidth + ", calc = " + CalcAvgWidth;
v.Error(T.OS_2_xAvgCharWidth, E.OS_2_E_xAvgCharWidth, m_tag, s);
bRet = false;
}
}
else
{
v.Warning(T.OS_2_xAvgCharWidth, W.OS_2_W_hmtx_invalid, m_tag, "unable to parse hmtx table");
}
}
catch (ApplicationException e)
{
v.Warning(T.OS_2_xAvgCharWidth, W._TEST_W_ErrorInAnotherTable, m_tag, "xAvgCharWidth cannot be validated due to " + e.Message);
}
}
}
}
else
{
// not a TT outline font - should embedded bitmap only font be handled here?
v.Info(T.OS_2_xAvgCharWidth, I._TEST_I_NotForCFF, m_tag, "test = OS/2_xAvgCharWidth");
}
}
}
if (v.PerformTest(T.OS_2_WeightClass))
{
if (usWeightClass >= 100 &&
usWeightClass <= 900 &&
usWeightClass% 100 == 0)
{
bool bWeightClassOk = true;
// compare to the PANOSE weight value
if (panose_byte1 == 2 || panose_byte1 == 3 || panose_byte1 == 4) // latin text, hand writing, or decorative
{
if (panose_byte3 > 1)
{
// convert PANOSE weight value from a range of [2..11] to a range of [100..900] (reasonably close anyway, given integer math)
int nConvertedPANOSE = (panose_byte3-2)*89+100;
int nDifference = Math.Abs(usWeightClass - nConvertedPANOSE);
if (nDifference < 200)
{
v.Pass(T.OS_2_WeightClass, P.OS_2_P_WeightClass_PANOSE, m_tag);
}
else
{
v.Warning(T.OS_2_WeightClass, W.OS_2_W_WeightClass_PANOSE, m_tag, "usWeightClass = " + usWeightClass + ", PANOSE weight = " + panose_byte3);
bWeightClassOk = false;
}
}
}
if (bWeightClassOk)
{
v.Pass(T.OS_2_WeightClass, P.OS_2_P_WeightClass, m_tag, usWeightClass.ToString());
}
}
else
{
v.Error(T.OS_2_WeightClass, E.OS_2_E_WeightClass, m_tag, usWeightClass.ToString());
bRet = false;
}
}
if (v.PerformTest(T.OS_2_WidthClass))
{
if (usWidthClass >=1 && usWidthClass <= 9)
{
v.Pass(T.OS_2_WidthClass, P.OS_2_P_WidthClass, m_tag, usWidthClass.ToString());
}
else
{
v.Error(T.OS_2_WidthClass, E.OS_2_E_WidthClass, m_tag, usWidthClass.ToString());
bRet = false;
}
}
if (v.PerformTest(T.OS_2_fsType))
{
bool bPass = true;
if ((fsType & 0xfcf1) != 0)
{
v.Error(T.OS_2_fsType, E.OS_2_E_fsTypeReserved, m_tag, "0x"+fsType.ToString("x4"));
bRet = false;
bPass = false;
}
else
{
int nExclusiveBits = 0;
if ((fsType & 0x0002) !=0) //Restricted License Embedding
{
nExclusiveBits++;
}
if ((fsType & 0x0004) != 0) // Preview and Print embedding
{
nExclusiveBits++;
}
if ((fsType & 0x0008) != 0) // Editable embedding
{
nExclusiveBits++;
}
if (nExclusiveBits > 1)
{
string sDetails = "0x"+fsType.ToString("x4");
if ((fsType & 0x0002) !=0)
{
sDetails += ", Restricted License Embedding";
}
if ((fsType & 0x0004) != 0)
{
sDetails += ", Preview and Print embedding";
}
if ((fsType & 0x0008) != 0)
{
sDetails += ", Editable embedding";
}
v.Error(T.OS_2_fsType, E.OS_2_E_fsTypeExclusiveBits, m_tag, sDetails);
bRet = false;
bPass = false;
}
}
if (bPass)
{
string sDetails = "0x"+fsType.ToString("x4");
if (fsType == 0)
{
sDetails += ", Installable Embedding";
}
if ((fsType & 0x0002) !=0)
{
sDetails += ", Restricted License Embedding";
}
if ((fsType & 0x0004) != 0)
{
sDetails += ", Preview and Print embedding";
}
if ((fsType & 0x0008) != 0)
{
sDetails += ", Editable embedding";
}
if ((fsType & 0x0100) != 0)
{
sDetails += ", No subsetting";
}
if ((fsType & 0x0200) != 0)
{
sDetails += ", Bitmap embedding only";
}
v.Pass(T.OS_2_fsType, P.OS_2_P_fsType, m_tag, sDetails);
}
}
if (v.PerformTest(T.OS_2_SubscriptSuperscript))
{
Table_head headTable = (Table_head)fontOwner.GetTable("head");
if (headTable != null)
{
ushort unitsPerEm = headTable.unitsPerEm;
ushort SmallestScript = (ushort)(unitsPerEm / 10);
bool bNoWarnOrErr = true;
if (ySubscriptXSize < SmallestScript ||
ySubscriptXSize > unitsPerEm )
{
v.Warning(T.OS_2_SubscriptSuperscript, W.OS_2_W_ySubscriptXSize_unlikely, m_tag, ySubscriptXSize.ToString());
bNoWarnOrErr = false;
}
if (ySubscriptYSize < SmallestScript ||
ySubscriptYSize > unitsPerEm )
{
v.Warning(T.OS_2_SubscriptSuperscript, W.OS_2_W_ySubscriptYSize_unlikely, m_tag, ySubscriptYSize.ToString());
bNoWarnOrErr = false;
}
if (ySubscriptYOffset < 0 )
{
v.Warning(T.OS_2_SubscriptSuperscript, W.OS_2_W_ySubscriptYOffset_LTZero, m_tag, ySubscriptYOffset.ToString());
bNoWarnOrErr = false;
}
if (ySuperscriptXSize < SmallestScript ||
ySuperscriptXSize > unitsPerEm )
{
v.Warning(T.OS_2_SubscriptSuperscript, W.OS_2_W_ySuperscriptXSize_unlikely, m_tag, ySuperscriptXSize.ToString());
bNoWarnOrErr = false;
}
if (ySuperscriptYSize < SmallestScript ||
ySuperscriptYSize > unitsPerEm )
{
v.Warning(T.OS_2_SubscriptSuperscript, W.OS_2_W_ySuperscriptYSize_unlikely, m_tag, ySuperscriptYSize.ToString());
bNoWarnOrErr = false;
}
if (ySuperscriptYOffset < 0 )
{
v.Warning(T.OS_2_SubscriptSuperscript, W.OS_2_W_ySuperscriptYOffset_unlikely, m_tag, ySuperscriptYOffset.ToString());
bNoWarnOrErr = false;
}
if (bNoWarnOrErr)
{
v.Pass(T.OS_2_SubscriptSuperscript, P.OS_2_P_SuperscriptSubscript, m_tag);
}
}
else
{
v.Error(T.OS_2_SubscriptSuperscript, E._TEST_E_TableMissing, m_tag, "head");
bRet = false;
}
}
if (v.PerformTest(T.OS_2_Strikeout))
{
Table_head headTable = (Table_head)fontOwner.GetTable("head");
if (headTable != null)
{
ushort unitsPerEm = headTable.unitsPerEm;
bool bNoWarnings = true;
if (yStrikeoutSize < 0 || yStrikeoutSize > unitsPerEm / 2 )
{
v.Warning(T.OS_2_Strikeout, W.OS_2_W_yStrikeoutSize_unlikely, m_tag, yStrikeoutSize.ToString());
bNoWarnings = false;
}
if (yStrikeoutPosition <= 0 )
{
v.Warning(T.OS_2_Strikeout, W.OS_2_W_yStrikeoutPosition_unlikely, m_tag, yStrikeoutPosition.ToString());
bNoWarnings = false;
}
if (bNoWarnings)
{
v.Pass(T.OS_2_Strikeout, P.OS_2_P_Strikeout, m_tag);
}
}
else
{
v.Error(T.OS_2_Strikeout, E._TEST_E_TableMissing, m_tag, "head");
bRet = false;
}
}
if (v.PerformTest(T.OS_2_FamilyClass))
{
bool bIDsOk = true;
byte ClassID = (byte)(sFamilyClass >> 8);
byte SubclassID = (byte)(sFamilyClass);
if (ClassID == 6 || ClassID == 11 || ClassID == 13 || ClassID == 14 )
{
v.Error(T.OS_2_FamilyClass, E.OS_2_E_sFamilyClass_classID_reserved, m_tag, ClassID.ToString());
bIDsOk = false;
bRet = false;
}
if (ClassID > 14 )
{
v.Error(T.OS_2_FamilyClass, E.OS_2_E_sFamilyClass_ClassID_undefined, m_tag, ClassID.ToString());
bIDsOk = false;
bRet = false;
}
if (SubclassID > 15 )
{
v.Error(T.OS_2_FamilyClass, E.OS_2_E_sFamilyClass_subclassID_undefined, m_tag, ClassID.ToString());
bIDsOk = false;
bRet = false;
}
if (bIDsOk)
{
v.Pass(T.OS_2_FamilyClass, P.OS_2_P_sFamilyClass, m_tag);
}
}
if (v.PerformTest(T.OS_2_Panose))
{
bool bPanoseOk = true;
if (panose_byte1 < 5) // panose kind valid, but not latin symbol
{
if (fontOwner.ContainsSymbolsOnly())
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_FamilyTypeNotSymbol, m_tag, "PANOSE byte 1 = " + panose_byte1.ToString());
bPanoseOk = false;
bRet = false;
}
}
else if (panose_byte1 == 5) // panose family kind == latin symbol
{
if (!fontOwner.ContainsSymbolsOnly())
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_FamilyTypeSymbol, m_tag, "PANOSE byte 1 = " + panose_byte1.ToString());
bPanoseOk = false;
bRet = false;
}
}
else if ( panose_byte1 > 5 ) // family kind is invalid
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bFamilyType, m_tag, panose_byte1.ToString());
bPanoseOk = false;
bRet = false;
}
if (panose_byte1 == 2) // family kind == latin text
{
if ( panose_byte2 > 15 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bSerifStyle, m_tag, panose_byte2.ToString());
bPanoseOk = false;
bRet = false;
}
}
if ( panose_byte3 > 11 ) // byte3 always means weight
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bWeight, m_tag, panose_byte3.ToString());
bPanoseOk = false;
bRet = false;
}
if (panose_byte1 == 5) // panose family kind == latin symbol
{
if (panose_byte3 != 1) // weight must be 1 for symbols
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_SymbolWeight, m_tag, panose_byte3.ToString());
bPanoseOk = false;
bRet = false;
}
if (panose_byte5 != 1) // aspect ratio & contrast must be 1 for symbols
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_SymbolAspectRatio, m_tag, panose_byte5.ToString());
bPanoseOk = false;
bRet = false;
}
}
if (panose_byte1 == 2) // family kind == latin text
{
// the following tests are only valid when family kind is latin text
if ( panose_byte4 > 9 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bProportion, m_tag, panose_byte4.ToString());
bPanoseOk = false;
bRet = false;
}
if ( panose_byte5 > 9 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bContrast, m_tag, panose_byte5.ToString());
bPanoseOk = false;
bRet = false;
}
if ( panose_byte6 > 10 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bStrokeVariation, m_tag, panose_byte6.ToString());
bPanoseOk = false;
bRet = false;
}
if ( panose_byte7 > 11 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bArmStyle, m_tag, panose_byte7.ToString());
bPanoseOk = false;
bRet = false;
}
if ( panose_byte8 > 15 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bLetterform, m_tag, panose_byte8.ToString());
bPanoseOk = false;
bRet = false;
}
if ( panose_byte9 > 13 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bMidline, m_tag, panose_byte9.ToString());
bPanoseOk = false;
bRet = false;
}
if ( panose_byte10 > 7 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bXHeight, m_tag, panose_byte10.ToString());
bPanoseOk = false;
bRet = false;
}
}
if (panose_byte1 == 0 &&
panose_byte2 == 0 &&
panose_byte3 == 0 &&
panose_byte4 == 0 &&
panose_byte5 == 0 &&
panose_byte6 == 0 &&
panose_byte7 == 0 &&
panose_byte8 == 0 &&
panose_byte9 == 0 &&
panose_byte10 == 0 )
{
v.Warning(T.OS_2_Panose, W.OS_2_W_Panose_undefined, m_tag);
bPanoseOk = false;
}
if (bPanoseOk)
{
v.Pass(T.OS_2_Panose, P.OS_2_P_Panose, m_tag);
}
}
if (v.PerformTest(T.OS_2_UnicodeRanges))
{
bRet &= CheckUnicodeRanges(v, fontOwner);
}
if (v.PerformTest(T.OS_2_fsSelection))
{
bool bSelOk = true;
Table_name nameTable = (Table_name)fontOwner.GetTable("name");
string sStyle = null;
string sStyleLower = null;
if (nameTable != null)
{
sStyle = nameTable.GetStyleString();
if (sStyle != null)
{
sStyleLower = sStyle.ToLower();
}
}
// reserved bits
if ( (fsSelection & 0xFF80 ) != 0 )
{
// we need to look for Win 3.1 font pages
// Fonts with these
const ushort HEBREW_FONT_PAGE = 0xB100;
const ushort SIMP_ARABIC_FONT_PAGE = 0xB200;
const ushort TRAD_ARABIC_FONT_PAGE = 0xB300;
const ushort OEM_ARABIC_FONT_PAGE = 0xB400;
const ushort SIMP_FARSI_FONT_PAGE = 0xBA00;
const ushort TRAD_FARSI_FONT_PAGE = 0xBB00;
const ushort THAI_FONT_PAGE = 0xDE00;
String sDetails = "Bit(s) ";
bool bFoundFirstBadBit = false;
if (version == 0)
{
switch (fsSelection & 0xFF00)
{
case HEBREW_FONT_PAGE:
sDetails = "Hebrew Windows 3.1 font page";
break;
case SIMP_ARABIC_FONT_PAGE:
sDetails = "Simplified Arabic Windows 3.1 font page";
break;
case TRAD_ARABIC_FONT_PAGE:
sDetails = "Traditional Arabic Windows 3.1 font page";
break;
case OEM_ARABIC_FONT_PAGE:
sDetails = "OEM Arabic Windows 3.1 font page";
break;
case SIMP_FARSI_FONT_PAGE:
sDetails = "Simplified Farsi Windows 3.1 font page";
break;
case TRAD_FARSI_FONT_PAGE:
sDetails = "Traditional Farsi Windows 3.1 font page";
break;
case THAI_FONT_PAGE:
sDetails = "Thai Windows 3.1 font page";
break;
default:
for (int i=0; i<16; i++)
{
int nBitValue = 1<<i;
if ((nBitValue & 0xFF80) != 0)
{
if ((fsSelection & nBitValue) != 0)
{
if (bFoundFirstBadBit)
{
sDetails += ", " + i;
}
else
{
sDetails += i.ToString();
bFoundFirstBadBit = true;
}
}
}
}
break;
}
}
else
{
for (int i=0; i<16; i++)
{
int nBitValue = 1<<i;
if ((nBitValue & 0xFF80) != 0)
{
if ((fsSelection & nBitValue) != 0)
{
if (bFoundFirstBadBit)
{
sDetails += ", " + i;
}
else
{
sDetails += i.ToString();
bFoundFirstBadBit = true;
}
}
}
}
}
v.Error(T.OS_2_fsSelection, E.OS_2_E_fsSelection_undefbits, m_tag, sDetails);
bSelOk = false;
bRet = false;
}
// compare to head.macStyle italic and bold bits
Table_head headTable = (Table_head)fontOwner.GetTable("head");
if (headTable != null)
{
bool bItalic = ((fsSelection & 0x01) != 0 );
bool bBold = ((fsSelection & 0x20) != 0 );
bool bMacBold = ((headTable.macStyle & 0x0001) != 0);
bool bMacItal = ((headTable.macStyle & 0x0002) != 0);
if (bItalic != bMacItal)
{
string sDetails = null;
if (bItalic) sDetails = "fsSelection italic bit is set, but macstyle italic bit is clear";
else sDetails = "fsSelection italic bit is clear, but macstyle italic bit is set";
v.Error(T.OS_2_fsSelection, E.OS_2_E_fsSelection_macStyle_italic, m_tag, sDetails);
bSelOk = false;
bRet = false;
}
if (bBold != bMacBold)
{
string sDetails = null;
if (bBold) sDetails = "fsSelection bold bit is set, but macstyle bold bit is clear";
else sDetails = "fsSelection bold bit is clear, but macstyle bold bit is set";
v.Error(T.OS_2_fsSelection, E.OS_2_E_fsSelection_macStyle_bold, m_tag, sDetails);
bSelOk = false;
bRet = false;
}
}
if ((fsSelection & 0x01) != 0 ) // italic bit
{
// compare to name subfamily
if (sStyleLower != null)
{
if (sStyleLower.IndexOf("italic") == -1 && sStyleLower.IndexOf("oblique") == -1)
{
v.Error(T.OS_2_fsSelection, E.OS_2_E_fsSelection_subfamily, m_tag, "fsSelection italic bit is set, but subfamily is " + sStyle);
bSelOk = false;
bRet = false;
}
}
}
if ((fsSelection & 0x20) != 0 ) // bold bit
{
// compare to name subfamily
if (sStyleLower != null)
{
if (sStyleLower.IndexOf("bold") == -1)
{
v.Error(T.OS_2_fsSelection, E.OS_2_E_fsSelection_subfamily, m_tag, "fsSelection bold bit is set, but subfamily is " + sStyle);
bSelOk = false;
bRet = false;
}
}
if (usWeightClass <= 500)
{
v.Warning(T.OS_2_fsSelection, W.OS_2_W_fsSelection_weight, m_tag, "usWeightClass = " + usWeightClass);
bSelOk = false;
}
}
if ((fsSelection & 0x40) != 0 ) // regular bit
{
if ((fsSelection & 0x20) != 0 )
{
v.Error(T.OS_2_fsSelection, E.OS_2_E_reg_bold, m_tag);
bSelOk = false;
bRet = false;
}
if ((fsSelection & 0x01) != 0)
{
v.Error(T.OS_2_fsSelection, E.OS_2_E_reg_ital, m_tag);
bSelOk = false;
bRet = false;
}
if (sStyleLower != null)
{
// compare to name subfamily
if (sStyleLower.CompareTo("regular") != 0)
{
v.Error(T.OS_2_fsSelection, E.OS_2_E_fsSelection_subfamily, m_tag, "fsSelection regular bit is set, but subfamily is " + sStyle);
bSelOk = false;
bRet = false;
}
}
}
if (bSelOk)
{
v.Pass(T.OS_2_fsSelection, P.OS_2_P_fsSelection, m_tag);
}
}
if (v.PerformTest(T.OS_2_CharIndexes))
{
Table_cmap cmapTable = (Table_cmap)fontOwner.GetTable("cmap");
if (cmapTable != null)
{
ushort charFirst = 0xffff;
ushort charLast = 0;
Table_cmap.EncodingTableEntry eteUni = cmapTable.GetEncodingTableEntry(3,1);
if (eteUni == null)
{
// presumably a symbol font
eteUni = cmapTable.GetEncodingTableEntry(3,0);
}
if (eteUni != null)
{
Table_cmap.Subtable st = cmapTable.GetSubtable(eteUni);
if (st != null)
{
bool bCmapOk = true;
byte[] charbuf = new byte[2];
// find the first char
for (ushort c=0; c<0xffff; c++)
{
charbuf[0] = (byte)c;
charbuf[1] = (byte)(c>>8);
uint glyphID;
try
{
glyphID = st.MapCharToGlyph(charbuf, 0);
}
catch
{
bCmapOk = false;
break;
}
if (glyphID != 0)
{
charFirst = c;
break;
}
}
// find the last char (start at fffd: fffe and ffff aren't legal characters)
if (bCmapOk)
{
for (ushort c=0xfffd; c>0; c--)
{
charbuf[0] = (byte)c;
charbuf[1] = (byte)(c>>8);
uint glyphID;
try
{
glyphID = st.MapCharToGlyph(charbuf, 0);
}
catch
{
bCmapOk = false;
break;
}
if (glyphID != 0)
{
charLast = c;
break;
}
}
}
if (!bCmapOk)
{
v.Warning(T.OS_2_CharIndexes, W._TEST_W_ErrorInAnotherTable, m_tag, "usFirstCharIndex and usLastCharIndex cannot be validated due to errors in the cmap table");
}
else if (usFirstCharIndex == charFirst && usLastCharIndex == charLast)
{
v.Pass(T.OS_2_CharIndexes, P.OS_2_P_CharIndexes, m_tag, "first = 0x" + usFirstCharIndex.ToString("x4") + ", last = 0x" + usLastCharIndex.ToString("x4"));
}
else
{
if (usFirstCharIndex != charFirst)
{
String sDetails = "actual = 0x" + usFirstCharIndex.ToString("x4") + ", calculated = 0x" + charFirst.ToString("x4");
v.Error(T.OS_2_CharIndexes, E.OS_2_E_usFirstCharIndex, m_tag, sDetails);
bRet = false;
}
if (usLastCharIndex != charLast)
{
String sDetails = "actual = 0x" + usLastCharIndex.ToString("x4") + ", calculated = 0x" + charLast.ToString("x4");
v.Error(T.OS_2_CharIndexes, E.OS_2_E_usLastCharIndex, m_tag, sDetails);
bRet = false;
}
}
}
else
{
v.Warning(T.OS_2_CharIndexes, W._TEST_W_ErrorInAnotherTable, m_tag, "usFirstCharIndex and usLastCharIndex cannot be validated due to errors in the cmap table");
}
}
}
else
{
v.Error(T.OS_2_CharIndexes, E._TEST_E_TableMissing, m_tag, "cmap");
bRet = false;
}
}
if (v.PerformTest(T.OS_2_TypoMetrics))
{
bool bOk = true;
if (sTypoAscender <= 0)
{
v.Error(T.OS_2_TypoMetrics, E.OS_2_E_sTypoAscender_notpositive, m_tag, sTypoAscender.ToString());
bOk = false;
bRet = false;
}
if (sTypoDescender > 0)
{
v.Error(T.OS_2_TypoMetrics, E.OS_2_E_sTypoDescender_positive, m_tag, sTypoDescender.ToString());
bOk = false;
bRet = false;
}
Table_head headTable = (Table_head)fontOwner.GetTable("head");
if (headTable != null)
{
if (sTypoAscender - sTypoDescender > headTable.unitsPerEm)
{
string sDetails = "sTypoAscender = " + sTypoAscender + ", sTypoDescender = " + sTypoDescender;
v.Warning(T.OS_2_TypoMetrics, W.OS_2_W_sTypoAscenderDescender_difference, m_tag, sDetails);
bOk = false;
}
}
else
{
v.Error(T.OS_2_TypoMetrics, E._TEST_E_TableMissing, m_tag, "head");
bRet = false;
}
if (bOk)
{
string sDetails = "sTypoAscender = " + sTypoAscender + ", sTypoDescender = " + sTypoDescender;
v.Pass(T.OS_2_TypoMetrics, P.OS_2_P_sTypoAscenderDescender, m_tag, sDetails);
}
}
if (v.PerformTest(T.OS_2_CodePageRanges))
{
if (version >= 1)
{
bRet &= CheckCodePageRanges(v, fontOwner);
}
}
if (v.PerformTest(T.OS_2_sxHeight))
{
if (version >= 2)
{
if (sxHeight == 0)
{
if (fontOwner.FastMapUnicodeToGlyphID((char)0x0078) != 0)
{
v.Error(T.OS_2_sxHeight, E.OS_2_E_sxHeight, m_tag);
bRet = false;
}
else
{
v.Pass(T.OS_2_sxHeight, P.OS_2_P_sxHeight_zero, m_tag, sxHeight.ToString());
}
}
else
{
v.Pass(T.OS_2_sxHeight, P.OS_2_P_sxHeight_nonzero, m_tag, sxHeight.ToString());
}
}
}
if (v.PerformTest(T.OS_2_sCapHeight))
{
if (version >= 2)
{
if (sCapHeight == 0)
{
if (fontOwner.FastMapUnicodeToGlyphID((char)0x0048) != 0)
{
v.Error(T.OS_2_sCapHeight, E.OS_2_E_sCapHeight, m_tag);
bRet = false;
}
else
{
v.Pass(T.OS_2_sCapHeight, P.OS_2_P_sCapHeight_zero, m_tag, sCapHeight.ToString());
}
}
else
{
v.Pass(T.OS_2_sCapHeight, P.OS_2_P_sCapHeight_nonzero, m_tag, sCapHeight.ToString());
}
}
}
if (v.PerformTest(T.OS_2_usDefaultChar))
{
if (version >= 2)
{
if (usDefaultChar == 0)
{
v.Pass(T.OS_2_usDefaultChar, P.OS_2_P_usDefaultChar_zero, m_tag);
}
else if (fontOwner.FastMapUnicodeToGlyphID((char)usDefaultChar) != 0)
{
v.Pass(T.OS_2_usDefaultChar, P.OS_2_P_usDefaultChar_nonzero, m_tag, "0x" + usDefaultChar.ToString("x4"));
}
else
{
v.Error(T.OS_2_usDefaultChar, E.OS_2_E_usDefaultChar_notmapped, m_tag, "0x" + usDefaultChar.ToString("x4"));
bRet = false;
}
}
}
if (v.PerformTest(T.OS_2_usBreakChar))
{
if (version >= 2)
{
if (fontOwner.FastMapUnicodeToGlyphID((char)usBreakChar) != 0)
{
v.Pass(T.OS_2_usBreakChar, P.OS_2_P_usBreakChar_mapped, m_tag);
}
else
{
v.Error(T.OS_2_usBreakChar, E.OS_2_E_usBreakChar_notmapped, m_tag, "0x" + usBreakChar.ToString("x4"));
bRet = false;
}
}
}
if (v.PerformTest(T.OS_2_usMaxContext))
{
if (version >= 2)
{
ushort GPOSMaxContext = 0;
Table_GPOS GPOSTable = (Table_GPOS)fontOwner.GetTable("GPOS");
if (GPOSTable != null)
{
GPOSMaxContext = GPOSTable.GetMaxContext();
}
ushort GSUBMaxContext = 0;
Table_GSUB GSUBTable = (Table_GSUB)fontOwner.GetTable("GSUB");
if (GSUBTable != null)
{
GSUBMaxContext = GSUBTable.GetMaxContext();
}
ushort CalcMaxContext = Math.Max(GPOSMaxContext, GSUBMaxContext);
if (usMaxContext == CalcMaxContext)
{
v.Pass(T.OS_2_usMaxContext, P.OS_2_P_usMaxContext, m_tag, usMaxContext.ToString());
}
else
{
v.Error(T.OS_2_usMaxContext, E.OS_2_E_usMaxContext, m_tag, "calc = " + CalcMaxContext + ", actual = " + usMaxContext);
bRet = false;
}
}
}
return bRet;
}
