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-rw-r--r--Build/source/libs/icu/icu-xetex/layout/GXLayoutEngine.cpp69
1 files changed, 69 insertions, 0 deletions
diff --git a/Build/source/libs/icu/icu-xetex/layout/GXLayoutEngine.cpp b/Build/source/libs/icu/icu-xetex/layout/GXLayoutEngine.cpp
new file mode 100644
index 00000000000..4d596bb0f3d
--- /dev/null
+++ b/Build/source/libs/icu/icu-xetex/layout/GXLayoutEngine.cpp
@@ -0,0 +1,69 @@
+
+/*
+ *
+ * (C) Copyright IBM Corp. 1998-2007 - All Rights Reserved
+ *
+ */
+
+#include "LETypes.h"
+#include "LayoutEngine.h"
+#include "GXLayoutEngine.h"
+#include "LEGlyphStorage.h"
+
+#include "MorphTables.h"
+
+U_NAMESPACE_BEGIN
+
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(GXLayoutEngine)
+
+GXLayoutEngine::GXLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode, const MorphTableHeader *morphTable)
+ : LayoutEngine(fontInstance, scriptCode, languageCode, 0), fMorphTable(morphTable)
+{
+ // nothing else to do?
+}
+
+GXLayoutEngine::~GXLayoutEngine()
+{
+ reset();
+}
+
+// apply 'mort' table
+le_int32 GXLayoutEngine::computeGlyphs(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft, LEGlyphStorage &glyphStorage, LEErrorCode &success)
+{
+ if (LE_FAILURE(success)) {
+ return 0;
+ }
+
+ if (chars == NULL || offset < 0 || count < 0 || max < 0 || offset >= max || offset + count > max) {
+ success = LE_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
+ }
+
+ mapCharsToGlyphs(chars, offset, count, FALSE, rightToLeft, glyphStorage, success);
+
+ if (LE_FAILURE(success)) {
+ return 0;
+ }
+
+ fMorphTable->process(glyphStorage);
+
+ return count;
+}
+
+// apply positional tables
+void GXLayoutEngine::adjustGlyphPositions(const LEUnicode chars[], le_int32 offset, le_int32 count, le_bool /*reverse*/,
+ LEGlyphStorage &/*glyphStorage*/, LEErrorCode &success)
+{
+ if (LE_FAILURE(success)) {
+ return;
+ }
+
+ if (chars == NULL || offset < 0 || count < 0) {
+ success = LE_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
+
+ // FIXME: no positional processing yet...
+}
+
+U_NAMESPACE_END