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-rw-r--r--Build/source/libs/icu/icu-4.6/layout/HanLayoutEngine.cpp84
1 files changed, 84 insertions, 0 deletions
diff --git a/Build/source/libs/icu/icu-4.6/layout/HanLayoutEngine.cpp b/Build/source/libs/icu/icu-4.6/layout/HanLayoutEngine.cpp
new file mode 100644
index 00000000000..31dc8187c43
--- /dev/null
+++ b/Build/source/libs/icu/icu-4.6/layout/HanLayoutEngine.cpp
@@ -0,0 +1,84 @@
+/*
+ * HanLayoutEngine.cpp: OpenType processing for Han fonts.
+ *
+ * (C) Copyright IBM Corp. 1998-2008 - All Rights Reserved.
+ */
+
+#include "LETypes.h"
+#include "LEScripts.h"
+#include "LELanguages.h"
+
+#include "LayoutEngine.h"
+#include "OpenTypeLayoutEngine.h"
+#include "HanLayoutEngine.h"
+#include "ScriptAndLanguageTags.h"
+#include "LEGlyphStorage.h"
+#include "OpenTypeTables.h"
+
+U_NAMESPACE_BEGIN
+
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(HanOpenTypeLayoutEngine)
+
+#define loclFeatureTag LE_LOCL_FEATURE_TAG
+#define smplFeatureTag LE_SMPL_FEATURE_TAG
+#define tradFeatureTag LE_TRAD_FEATURE_TAG
+
+#define loclFeatureMask 0x80000000UL
+#define smplFeatureMask 0x40000000UL
+#define tradFeatureMask 0x20000000UL
+
+static const FeatureMap featureMap[] =
+{
+ {loclFeatureTag, loclFeatureMask},
+ {smplFeatureTag, smplFeatureMask},
+ {tradFeatureTag, tradFeatureMask}
+};
+
+static const le_int32 featureMapCount = LE_ARRAY_SIZE(featureMap);
+
+#define features (loclFeatureMask)
+
+HanOpenTypeLayoutEngine::HanOpenTypeLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode,
+ le_int32 typoFlags, const GlyphSubstitutionTableHeader *gsubTable, LEErrorCode &success)
+ : OpenTypeLayoutEngine(fontInstance, scriptCode, languageCode, typoFlags, gsubTable, success)
+{
+ fFeatureMap = featureMap;
+ fFeatureMapCount = featureMapCount;
+}
+
+HanOpenTypeLayoutEngine::~HanOpenTypeLayoutEngine()
+{
+ // nothing to do
+}
+
+le_int32 HanOpenTypeLayoutEngine::characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool /*rightToLeft*/,
+ LEUnicode *&/*outChars*/, 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;
+ }
+
+ glyphStorage.allocateGlyphArray(count, FALSE, success);
+ glyphStorage.allocateAuxData(success);
+
+ if (LE_FAILURE(success)) {
+ return 0;
+ }
+
+ // FIXME: do we want to add the 'trad' feature for 'ZHT' and the
+ // 'smpl' feature for 'ZHS'? If we do this, we can remove the exact
+ // flag from the language tag lookups, so we can use these features
+ // with the default LangSys...
+ for (le_int32 i = 0; i < count; i += 1) {
+ glyphStorage.setAuxData(i, features, success);
+ }
+
+ return count;
+}
+
+U_NAMESPACE_END