Deal with ca and CA transparency operators in pdf. add comments to generated classes.

experimental/PdfViewer/SkPdfThreadActionDictionary_autogen.h

 #ifndef __DEFINED__SkPdfThreadActionDictionary
 #define __DEFINED__SkPdfThreadActionDictionary
 
 #include "SkPdfEnums_autogen.h"
 #include "SkPdfArray_autogen.h"
 #include "SkPdfDictionary_autogen.h"
 
+// Additional entries specific to a thread action
 class SkPdfThreadActionDictionary : public SkPdfDictionary {
 public:
   virtual SkPdfObjectType getType() const { return kThreadActionDictionary_SkPdfObjectType;}
   virtual SkPdfObjectType getTypeEnd() const { return (SkPdfObjectType)(kThreadActionDictionary_SkPdfObjectType + 1);}
 public:
   virtual SkPdfThreadActionDictionary* asThreadActionDictionary() {return this;}
   virtual const SkPdfThreadActionDictionary* asThreadActionDictionary() const {return this;}
 
 private:
   virtual SkPdfALinkAnnotationDictionary* asALinkAnnotationDictionary() {return NULL;}
@@ skipping 496 matching lines @@
 
 public:
 private:
 public:
   SkPdfThreadActionDictionary(const PdfMemDocument* podofoDoc = NULL, const PdfObject* podofoObj = NULL) : SkPdfDictionary(podofoDoc, podofoObj) {}
 
   virtual bool valid() const {return true;}
 
   SkPdfThreadActionDictionary& operator=(const SkPdfThreadActionDictionary& from) {this->fPodofoDoc = from.fPodofoDoc; this->fPodofoObj = from.fPodofoObj; return *this;}
 
+/** (Required) The type of action that this dictionary describes; must be Thread
+ *  for a thread action.
+**/
+  bool has_S() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "S", "", NULL));
+  }
+
   std::string S() const {
     std::string ret;
     if (NameFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "S", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return "";
   }
 
+/** (Optional) The file containing the desired thread. If this entry is absent, the
+ *  thread is in the current file.
+**/
+  bool has_F() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "F", "", NULL));
+  }
+
   SkPdfFileSpec F() const {
     SkPdfFileSpec ret;
     if (FileSpecFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "F", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return SkPdfFileSpec();
   }
 
+/** (Required) The desired destination thread, specified in one of the following
+ *  forms:
+ *  *  An indirect reference to a thread dictionary (see Section 8.3.2, "Articles").
+ *     In this case, the thread must be in the current file.
+ *  *  The index of the thread within the Threads array of its document's catalog
+ *     (see Section 3.6.1, "Document Catalog"). The first thread in the array has
+ *     index 0.
+ *  *  The title of the thread, as specified in its thread information dictionary (see
+ *     Table 8.7 on page 484). If two or more threads have the same title, the one
+ *     appearing first in the document catalog's Threads array will be used.
+**/
+  bool has_D() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "D", "", NULL));
+  }
+
   bool isDADictionary() const {
     SkPdfObject* ret = NULL;
     if (!ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "D", "", &ret)) return false;
     return ret->podofo()->GetDataType() == ePdfDataType_Dictionary;
   }
 
   SkPdfDictionary* getDAsDictionary() const {
     SkPdfDictionary* ret = NULL;
     if (DictionaryFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "D", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
@@ skipping 19 matching lines @@
     return ret->podofo()->GetDataType() == ePdfDataType_String || ret->podofo()->GetDataType() == ePdfDataType_HexString;
   }
 
   std::string getDAsString() const {
     std::string ret = "";
     if (StringFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "D", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return "";
   }
 
+/** (Optional) The desired bead in the destination thread, specified in one of the
+ *  following forms:
+ *  *  An indirect reference to a bead dictionary (see Section 8.3.2, "Articles"). In
+ *     this case, the thread must be in the current file.
+ *  *  The index of the bead within its thread. The first bead in a thread has
+ *     index 0.
+**/
+  bool has_B() const {
+    return (ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "B", "", NULL));
+  }
+
   bool isBADictionary() const {
     SkPdfObject* ret = NULL;
     if (!ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "B", "", &ret)) return false;
     return ret->podofo()->GetDataType() == ePdfDataType_Dictionary;
   }
 
   SkPdfDictionary* getBAsDictionary() const {
     SkPdfDictionary* ret = NULL;
     if (DictionaryFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "B", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return NULL;
   }
 
   bool isBAInteger() const {
     SkPdfObject* ret = NULL;
     if (!ObjectFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "B", "", &ret)) return false;
     return ret->podofo()->GetDataType() == ePdfDataType_Number;
   }
 
   long getBAsInteger() const {
     long ret = 0;
     if (LongFromDictionary(fPodofoDoc, fPodofoObj->GetDictionary(), "B", "", &ret)) return ret;
     // TODO(edisonn): warn about missing required field, assert for known good pdfs
     return 0;
   }
 
 };
 
 #endif  // __DEFINED__SkPdfThreadActionDictionary