fontservices/textshaperplugin/IcuSource/layout/ScriptAndLanguage.cpp
changeset 0 1fb32624e06b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fontservices/textshaperplugin/IcuSource/layout/ScriptAndLanguage.cpp	Tue Feb 02 02:02:46 2010 +0200
@@ -0,0 +1,61 @@
+/*
+ * %W% %E%
+ *
+ * (C) Copyright IBM Corp. 1998-2003 - All Rights Reserved
+ *
+ */
+
+#include "LETypes.h"
+#include "OpenTypeTables.h"
+#include "OpenTypeUtilities.h"
+#include "ScriptAndLanguage.h"
+#include "LESwaps.h"
+
+U_NAMESPACE_BEGIN
+
+const LangSysTable *ScriptTable::findLanguage(LETag languageTag, le_bool exactMatch) const
+{
+    le_uint16 count = SWAPW(langSysCount);
+    Offset langSysTableOffset = exactMatch? 0 : SWAPW(defaultLangSysTableOffset);
+
+    if (count > 0) {
+        Offset foundOffset =
+            OpenTypeUtilities::getTagOffset(languageTag, langSysRecordArray, count);
+
+        if (foundOffset != 0) {
+            langSysTableOffset = foundOffset;
+        }
+    }
+
+    if (langSysTableOffset != 0) {
+        return (const LangSysTable *) ((char *)this + langSysTableOffset);
+    }
+
+    return 0;
+}
+
+const ScriptTable *ScriptListTable::findScript(LETag scriptTag) const
+{
+    le_uint16 count = SWAPW(scriptCount);
+    Offset scriptTableOffset =
+        OpenTypeUtilities::getTagOffset(scriptTag, scriptRecordArray, count);
+
+    if (scriptTableOffset != 0) {
+        return (const ScriptTable *) ((char *)this + scriptTableOffset);
+    }
+
+    return 0;
+}
+
+const LangSysTable *ScriptListTable::findLanguage(LETag scriptTag, LETag languageTag, le_bool exactMatch) const
+{
+    const ScriptTable *scriptTable = findScript(scriptTag);
+
+    if (scriptTable == 0) {
+        return 0;
+    }
+
+    return scriptTable->findLanguage(languageTag, exactMatch);
+}
+
+U_NAMESPACE_END