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usp10: Rewrite ScriptStringXtoCP to make use of ScriptXtoCP.

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Aric Stewart 2011-03-18 12:22:42 -05:00 committed by Alexandre Julliard
parent d7ea24d56d
commit f026616c22
1 changed files with 26 additions and 20 deletions
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46
dlls/usp10/usp10.c
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@ -991,14 +991,11 @@ HRESULT WINAPI ScriptStringCPtoX(SCRIPT_STRING_ANALYSIS ssa, int icp, BOOL fTrai
* ScriptStringXtoCP (USP10.@)
*
*/
HRESULT WINAPI ScriptStringXtoCP(SCRIPT_STRING_ANALYSIS ssa, int iX, int* piCh, int* piTrailing)
HRESULT WINAPI ScriptStringXtoCP(SCRIPT_STRING_ANALYSIS ssa, int iX, int* piCh, int* piTrailing)
{
StringAnalysis* analysis = ssa;
int i;
int j;
int runningX = 0;
int runningCp = 0;
int width;
TRACE("(%p), %d, (%p), (%p)\n", ssa, iX, piCh, piTrailing);
@ -1022,24 +1019,33 @@ HRESULT WINAPI ScriptStringXtoCP(SCRIPT_STRING_ANALYSIS ssa, int iX, int* piCh,
for(i=0; i<analysis->numItems; i++)
{
for(j=0; j<analysis->glyphs[i].numGlyphs; j++)
int CP = analysis->pItem[i+1].iCharPos - analysis->pItem[i].iCharPos;
/* initialize max extents for uninitialized runs */
if (analysis->glyphs[i].iMaxPosX == -1)
{
width = analysis->glyphs[i].piAdvance[j];
if(iX < (runningX + width))
{
*piCh = runningCp;
if((iX - runningX) > width/2)
*piTrailing = TRUE;
else
*piTrailing = FALSE;
if (analysis->pItem[i].a.fRTL)
*piTrailing = !*piTrailing;
return S_OK;
}
runningX += width;
runningCp++;
if (analysis->pItem[i].a.fRTL)
ScriptCPtoX(0, FALSE, CP, analysis->glyphs[i].numGlyphs, analysis->glyphs[i].pwLogClust,
analysis->glyphs[i].psva, analysis->glyphs[i].piAdvance,
&analysis->pItem[i].a, &analysis->glyphs[i].iMaxPosX);
else
ScriptCPtoX(CP, TRUE, CP, analysis->glyphs[i].numGlyphs, analysis->glyphs[i].pwLogClust,
analysis->glyphs[i].psva, analysis->glyphs[i].piAdvance,
&analysis->pItem[i].a, &analysis->glyphs[i].iMaxPosX);
}
if (iX > analysis->glyphs[i].iMaxPosX)
{
iX -= analysis->glyphs[i].iMaxPosX;
runningCp += CP;
continue;
}
ScriptXtoCP(iX, CP, analysis->glyphs[i].numGlyphs, analysis->glyphs[i].pwLogClust,
analysis->glyphs[i].psva, analysis->glyphs[i].piAdvance,
&analysis->pItem[i].a, piCh, piTrailing);
*piCh += runningCp;
return S_OK;
}
/* out of range */