internal SCRIPT_ANALYSIS GetAs_SCRIPT_ANALYSIS()
{
SCRIPT_ANALYSIS result = default(SCRIPT_ANALYSIS);
result.word1 = (ushort)((eScript & 0x3FF) | ((fRTL & 1) << 10) | ((fLayoutRTL & 1) << 11) | ((fLinkBefore & 1) << 12) | ((fLinkAfter & 1) << 13) | ((fLogicalOrder & 1) << 14) | ((fNoGlyphIndex & 1) << 15));
result.state = s.GetAs_SCRIPT_STATE();
return(result);
}
public SCRIPT_ANALYSIS GetAs_SCRIPT_ANALYSIS()
{
SCRIPT_ANALYSIS result = default(SCRIPT_ANALYSIS);
result.word1 = (ushort)((this.eScript & 0x3FF) | (this.fRTL & 1) << 10 | (this.fLayoutRTL & 1) << 11 | (this.fLinkBefore & 1) << 12 | (this.fLinkAfter & 1) << 13 | (this.fLogicalOrder & 1) << 14 | (this.fNoGlyphIndex & 1) << 15);
result.state = this.s.GetAs_SCRIPT_STATE();
return(result);
}
public void InitializeTruncatedCopy(ScriptRun *scriptRun, int truncatedLeadingCharsCount, int truncatedTrailingCharsCount)
{
this.run = scriptRun->run;
if (this.run.RunKind == RunKind.Text)
{
this.run.CharCount = scriptRun->CharCount - truncatedLeadingCharsCount - truncatedTrailingCharsCount;
}
ScriptAnalysis = scriptRun->ScriptAnalysis;
CharIndexInParagraph = scriptRun->CharIndexInParagraph + truncatedLeadingCharsCount;
}
public void Initialize(Run *run, SCRIPT_ANALYSIS *scriptAnalysis, int charIndexInParagraph, int charCount)
{
this.run = *run;
if (this.run.RunKind == RunKind.Text)
{
this.run.CharCount = charCount;
}
CharIndexInParagraph = charIndexInParagraph;
ScriptAnalysis = *scriptAnalysis;
}
public static extern uint ScriptPlace(
IntPtr hdc,
ref IntPtr psc,
[MarshalAs(UnmanagedType.LPArray)] ushort[] pwGlyphs,
int cGlyphs,
[MarshalAs(UnmanagedType.LPArray)] SCRIPT_VISATTR[] psva,
ref SCRIPT_ANALYSIS psa,
[In, Out, MarshalAs(UnmanagedType.LPArray)] int[] piAdvance,
[In, Out, MarshalAs(UnmanagedType.LPArray)] GOFFSET[] pGoffset,
ref ABC pABC
);
public static extern uint ScriptShape(
IntPtr hdc,
ref IntPtr psc,
[MarshalAs(UnmanagedType.LPWStr)] string pwcChars,
int cChars,
int cMaxGlyphs,
ref SCRIPT_ANALYSIS psa,
[In, Out, MarshalAs(UnmanagedType.LPArray)] ushort[] pwOutGlyphs,
[In, Out, MarshalAs(UnmanagedType.LPArray)] ushort[] pwLogClust,
[In, Out, MarshalAs(UnmanagedType.LPArray)] SCRIPT_VISATTR[] psva,
ref int pcGlyphs
);
private int GetGlyphs(IntPtr hdc, Run run, ushort[] glyphs, int[] widths, int maxGlyphs, bool rtl)
{
// initialize structures
SCRIPT_ANALYSIS psa = run.analysis;
ushort[] pwLogClust = new ushort[maxGlyphs];
int pcGlyphs = 0;
SCRIPT_VISATTR[] psva = new SCRIPT_VISATTR[maxGlyphs];
GOFFSET[] pGoffset = new GOFFSET[maxGlyphs];
ABC pABC = new ABC();
// make glyphs
ScriptShape(hdc, ref FUSCache, run.text, run.text.Length, glyphs.Length, ref psa, glyphs, pwLogClust, psva, ref pcGlyphs);
// make widths
ScriptPlace(hdc, ref FUSCache, glyphs, pcGlyphs, psva, ref psa, widths, pGoffset, ref pABC);
return(pcGlyphs);
}
public static extern uint ScriptTextOut(
IntPtr hdc,
ref IntPtr psc,
int x,
int y,
uint fuOptions,
// Win32.RECT lprc,
// IntPtr lprc,
OptionalBase lprc,
SCRIPT_ANALYSIS psa,
IntPtr pwcReserved,
int iReserved,
[MarshalAs(UnmanagedType.LPArray)] ushort[] pwGlyphs,
int cGlyphs,
[MarshalAs(UnmanagedType.LPArray)] int[] piAdvance,
[MarshalAs(UnmanagedType.LPArray)] int[] piJustify,
[MarshalAs(UnmanagedType.LPArray)] GOFFSET[] pGoffset
);
public Run(string text, SCRIPT_ANALYSIS a)
{
this.text = text;
this.analysis = a;
}
public int ScriptShape(string inChars, int charPos, int length, SCRIPT_ITEM[] items, OPENTYPE_TAG[] scriptTags, int itemsCount, IntPtr hWnd, string faceName, int fontHeight, out ushort[] logClust, out SCRIPT_CHARPROP[] charProps, out ushort[] glyphs, out SCRIPT_GLYPHPROP[] glyphProps)
{
if (string.IsNullOrEmpty(inChars))
{
throw new ArgumentException("inChars");
}
if (items == null || items.Length <= 0)
{
throw new ArgumentException("items");
}
if (itemsCount >= items.Length)
{
throw new ArgumentException("itemsCount");
}
if (charPos < 0)
{
throw new ArgumentException("charPos");
}
if (charPos >= inChars.Length)
{
throw new ArgumentException("charPos");
}
if (length <= 0)
{
throw new ArgumentException("length");
}
if (charPos + length > inChars.Length)
{
throw new ArgumentOutOfRangeException("length");
}
if (string.IsNullOrEmpty(faceName))
{
throw new ArgumentException("faceName");
}
if (fontHeight <= 0)
{
throw new ArgumentException("fontHeight");
}
int itemIndex;
for (itemIndex = 0; itemIndex < itemsCount - 1; itemIndex++)
{
if (items[itemIndex].iCharPos <= charPos)
{
if (items[itemIndex + 1].iCharPos >= charPos + length)
{
break;
}
}
}
if (itemIndex == itemsCount - 1)
{
if (items[itemIndex].iCharPos > charPos)
{
throw new ArgumentOutOfRangeException("length");
}
}
SCRIPT_ANALYSIS psa = items[itemIndex].a;
string shapeChars = inChars.Substring(charPos, length);
OPENTYPE_TAG tagScript = scriptTags[itemIndex];
OPENTYPE_TAG tagLangSys = new OPENTYPE_TAG('\0', '\0', '\0', '\0');
int[] rangeChars = new int[]
{
length
};
logClust = new ushort[length];
charProps = new SCRIPT_CHARPROP[length];
glyphs = new ushort[length];
glyphProps = new SCRIPT_GLYPHPROP[length];
for (int index = 0; index < length; index++)
{
glyphProps[index] = default(SCRIPT_GLYPHPROP);
logClust[index] = 0;
charProps[index] = default(SCRIPT_CHARPROP);
glyphs[index] = 0;
}
int pcGlyphs = 0;
OPENTYPE_FEATURE_RECORD[] arRecord = new OPENTYPE_FEATURE_RECORD[1];
OPENTYPE_FEATURE_RECORD potfRecord = default(OPENTYPE_FEATURE_RECORD);
arRecord[0] = potfRecord;
potfRecord.tagFeature = new OPENTYPE_TAG('v', 'e', 'r', 't');
potfRecord.lParameter = 1u;
TEXTRANGE_PROPERTIES[] arRangeProperty = new TEXTRANGE_PROPERTIES[1];
TEXTRANGE_PROPERTIES rpRangeProperty = default(TEXTRANGE_PROPERTIES);
arRangeProperty[0] = rpRangeProperty;
rpRangeProperty.cotfRecords = 1;
int cRanges = 1;
IntPtr arRecordPtr = Marshal.AllocHGlobal(Marshal.SizeOf(potfRecord));
Marshal.StructureToPtr(potfRecord, arRecordPtr, false);
IntPtr arRangePtr = Marshal.AllocHGlobal(Marshal.SizeOf(rpRangeProperty));
rpRangeProperty.potfRecords = arRecordPtr;
Marshal.StructureToPtr(rpRangeProperty, arRangePtr, false);
IntPtr hDC = User32.GetDC(hWnd);
IntPtr font = Gdi32.CreateFontIndirect(new LOGFONT
{
lfCharSet = FontCharSet.DEFAULT_CHARSET,
lfHeight = fontHeight,
lfFaceName = faceName
});
IntPtr oldFont = Gdi32.SelectObject(hDC, font);
int hresult = Usp10.ScriptShapeOpenType(hDC, ref this._psc, ref psa, tagScript, tagLangSys, rangeChars, ref arRangePtr, cRanges, shapeChars, length, length, logClust, charProps, glyphs, glyphProps, ref pcGlyphs);
Gdi32.SelectObject(hDC, oldFont);
Gdi32.DeleteObject(font);
User32.ReleaseDC(hWnd, hDC);
Marshal.FreeHGlobal(arRecordPtr);
Marshal.FreeHGlobal(arRangePtr);
Marshal.ThrowExceptionForHR(hresult);
return(pcGlyphs);
}
public static extern uint ScriptBreak(
[MarshalAs(UnmanagedType.LPWStr)] string pwcChars,
int cChars,
SCRIPT_ANALYSIS psa,
[In, Out, MarshalAs(UnmanagedType.LPArray)] SCRIPT_LOGATTR[] psla
);
