Implemented transparent gradients

src/pdf/SkPDFTypes.cpp

Index: src/pdf/SkPDFTypes.cpp
diff --git a/src/pdf/SkPDFTypes.cpp b/src/pdf/SkPDFTypes.cpp
index ed02d2bd12daf658bcd5c5bc7daaefa69dfbb79b..b10ab3d3db11078128cfd8dc9a58586da5ae334b 100644
--- a/src/pdf/SkPDFTypes.cpp
+++ b/src/pdf/SkPDFTypes.cpp
@@ -499,3 +499,49 @@ SkPDFName* SkPDFDict::Iter::next(SkPDFObject** value) {
     *value = NULL;
     return NULL;
 }
+
+///////////////////////////////////////////////////////////////////////////////
+SkPDFObject* SkPDFResourceDict::insertResource(
+        SkPDFName* type, SkPDFName* key, SkPDFObject* value) {
+    SkPDFDict* typeDict = getResourceTypeDict(type);
+    typeDict->insert(key, value);
+    return value;
+}
+
+SkPDFObject* SkPDFResourceDict::insertResource(
+        const char type[], const char key[], SkPDFObject* value) {
+    return insertResource(new SkPDFName(type), new SkPDFName(key), value);
+}
+
+SkPDFObject* SkPDFResourceDict::insertResourceAsRef(
+        const char type[], const char key[], SkPDFObject* value) {
+    SkAutoTUnref<SkPDFObjRef> ref( new SkPDFObjRef(value));
+    insertResource(new SkPDFName(type), new SkPDFName(key), ref);
+    fResources.add(value);
+
+    return value;
+}
+
+void SkPDFResourceDict::getResources(
+        const SkTSet<SkPDFObject*>& knownResourceObjects,
+        SkTSet<SkPDFObject*>* newResourceObjects) {
+    GetResourcesHelper(&fResources.toArray(),
+                       knownResourceObjects,
+                       newResourceObjects);
+}
+
+SkPDFDict* SkPDFResourceDict::getResourceTypeDict(SkPDFName* type) {
+    for (int i = 0; i < fTypes.count(); i++) {
+        if (*(fTypes[i].key) == *type) {
+            return fTypes[i].value;
+        }
+    }
+
+    // If not found, create a new record.
+    struct DictRec* newEntry = fTypes.append();
+    newEntry->key = type;
+    SkAutoTUnref<SkPDFDict> newDict(new SkPDFDict());
+    newEntry->value = newDict;
+    insert(type, newDict);  // ref counting handled in SkPDFDict::insert
+    return newDict.get();
+}