--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fontservices/textshaperplugin/IcuSource/layout/SubstitutionLookups.cpp	Tue Feb 02 02:02:46 2010 +0200
@@ -0,0 +1,52 @@
+/*
+ *
+ * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
+ *
+ */
+
+#include "LETypes.h"
+#include "LEFontInstance.h"
+#include "OpenTypeTables.h"
+#include "GlyphSubstitutionTables.h"
+#include "GlyphIterator.h"
+#include "LookupProcessor.h"
+#include "SubstitutionLookups.h"
+#include "CoverageTables.h"
+#include "LESwaps.h"
+
+U_NAMESPACE_BEGIN
+
+/*
+    NOTE: This could be optimized somewhat by keeping track
+    of the previous sequenceIndex in the loop and doing next()
+    or prev() of the delta between that and the current
+    sequenceIndex instead of always resetting to the front.
+*/
+void SubstitutionLookup::applySubstitutionLookups(
+        LookupProcessor *lookupProcessor,
+        SubstitutionLookupRecord *substLookupRecordArray,
+        le_uint16 substCount,
+        GlyphIterator *glyphIterator,
+        const LEFontInstance *fontInstance,
+        le_int32 position,
+        LEErrorCode& success)
+{
+    if (LE_FAILURE(success)) {
+        return;
+    }
+
+    GlyphIterator tempIterator(*glyphIterator);
+
+    for (le_uint16 subst = 0; subst < substCount && LE_SUCCESS(success); subst += 1) {
+        le_uint16 sequenceIndex = SWAPW(substLookupRecordArray[subst].sequenceIndex);
+        le_uint16 lookupListIndex = SWAPW(substLookupRecordArray[subst].lookupListIndex);
+
+        tempIterator.setCurrStreamPosition(position);
+        tempIterator.next(sequenceIndex);
+
+        lookupProcessor->applySingleLookup(lookupListIndex, &tempIterator,
+            fontInstance, success);
+    }
+}
+
+U_NAMESPACE_END