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usp10: Determine glyph properties after shaping for Thai and other SE asian scrpts.

This commit is contained in:
Aric Stewart 2011-05-23 11:41:40 -05:00 committed by Alexandre Julliard
parent 38d4409641
commit 9dd700206a
1 changed files with 80 additions and 5 deletions
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85
dlls/usp10/shape.c
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@ -49,6 +49,7 @@ typedef VOID (*ShapeCharGlyphPropProc)( HDC , ScriptCache*, SCRIPT_ANALYSIS*, co
static void ShapeCharGlyphProp_Default( HDC hdc, ScriptCache* psc, SCRIPT_ANALYSIS* psa, const WCHAR* pwcChars, const INT cChars, const WORD* pwGlyphs, const INT cGlyphs, WORD* pwLogClust, SCRIPT_CHARPROP* pCharProp, SCRIPT_GLYPHPROP* pGlyphProp);
static void ShapeCharGlyphProp_Arabic( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, const WCHAR* pwcChars, const INT cChars, const WORD* pwGlyphs, const INT cGlyphs, WORD *pwLogClust, SCRIPT_CHARPROP* pCharProp, SCRIPT_GLYPHPROP *pGlyphProp );
static void ShapeCharGlyphProp_Thai( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, const WCHAR* pwcChars, const INT cChars, const WORD* pwGlyphs, const INT cGlyphs, WORD *pwLogClust, SCRIPT_CHARPROP *pCharProp, SCRIPT_GLYPHPROP *pGlyphProp );
extern const unsigned short wine_shaping_table[];
extern const unsigned short wine_shaping_forms[LAST_ARABIC_CHAR - FIRST_ARABIC_CHAR + 1][4];
@ -399,11 +400,11 @@ static const ScriptShapeData ShapingData[] =
{{ sinhala_features, 7}, NULL, "sinh", NULL, NULL},
{{ tibetan_features, 2}, NULL, "tibt", NULL, NULL},
{{ tibetan_features, 2}, NULL, "tibt", NULL, NULL},
{{ tibetan_features, 2}, NULL, "phag", ContextualShape_Phags_pa, NULL},
{{ thai_features, 1}, NULL, "thai", NULL, NULL},
{{ thai_features, 1}, NULL, "thai", NULL, NULL},
{{ thai_features, 1}, required_lao_features, "lao", NULL, NULL},
{{ thai_features, 1}, required_lao_features, "lao", NULL, NULL},
{{ tibetan_features, 2}, NULL, "phag", ContextualShape_Phags_pa, ShapeCharGlyphProp_Thai},
{{ thai_features, 1}, NULL, "thai", NULL, ShapeCharGlyphProp_Thai},
{{ thai_features, 1}, NULL, "thai", NULL, ShapeCharGlyphProp_Thai},
{{ thai_features, 1}, required_lao_features, "lao", NULL, ShapeCharGlyphProp_Thai},
{{ thai_features, 1}, required_lao_features, "lao", NULL, ShapeCharGlyphProp_Thai},
};
static INT GSUB_is_glyph_covered(LPCVOID table , UINT glyph)
@ -1628,6 +1629,80 @@ static void ShapeCharGlyphProp_Arabic( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSI
HeapFree(GetProcessHeap(),0,spaces);
}
static void ShapeCharGlyphProp_Thai( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, const WCHAR* pwcChars, const INT cChars, const WORD* pwGlyphs, const INT cGlyphs, WORD *pwLogClust, SCRIPT_CHARPROP *pCharProp, SCRIPT_GLYPHPROP *pGlyphProp )
{
int i,k;
int finaGlyph;
INT dirL;
BYTE *spaces;
spaces = HeapAlloc(GetProcessHeap(),0,cGlyphs);
memset(spaces,0,cGlyphs);
if (!psa->fLogicalOrder && psa->fRTL)
{
finaGlyph = 0;
dirL = -1;
}
else
{
finaGlyph = cGlyphs-1;
dirL = 1;
}
for (i = 0; i < cGlyphs; i++)
{
for (k = 0; k < cChars; k++)
if (pwLogClust[k] == i)
{
if (pwcChars[k] == 0x0020)
spaces[i] = 1;
}
}
for (i = 0; i < cGlyphs; i++)
{
int char_index[20];
int char_count = 0;
for (k = 0; k < cChars; k++)
{
if (pwLogClust[k] == i)
{
char_index[char_count] = k;
char_count++;
}
}
if (char_count == 0)
{
FIXME("No chars in this glyph? Must be an error\n");
continue;
}
if (char_count ==1 && pwcChars[char_index[0]] == 0x0020) /* space */
{
pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_CHARACTER;
pCharProp[char_index[0]].fCanGlyphAlone = 1;
}
else if (i == finaGlyph)
pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_NONE;
else
pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_CHARACTER;
}
HeapFree(GetProcessHeap(),0,spaces);
GDEF_UpdateGlyphProps(hdc, pwGlyphs, cGlyphs, pwLogClust, pGlyphProp);
UpdateClustersFromGlyphProp(cGlyphs, cChars, pwLogClust, pGlyphProp);
/* Do not allow justification between marks and their base */
for (i = 0; i < cGlyphs; i++)
{
if (!pGlyphProp[i].sva.fClusterStart)
pGlyphProp[i-dirL].sva.uJustification = SCRIPT_JUSTIFY_NONE;
}
}
void SHAPE_CharGlyphProp(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, const WCHAR* pwcChars, const INT cChars, const WORD* pwGlyphs, const INT cGlyphs, WORD *pwLogClust, SCRIPT_CHARPROP *pCharProp, SCRIPT_GLYPHPROP *pGlyphProp)
{
if (ShapingData[psa->eScript].charGlyphPropProc)