pdfviewer: debug the parameters for snc, and for resolveReference

Review URL: https://codereview.chromium.org/21604003

git-svn-id: http://skia.googlecode.com/svn/trunk@10498 2bbb7eff-a529-9590-31e7-b0007b416f81

3 files changed, 29 insertions, 5 deletions

diff --git a/experimental/PdfViewer/SkPdfRenderer.cpp b/experimental/PdfViewer/SkPdfRenderer.cpp
index e15f165185..bbd036a00b 100644
--- a/experimental/PdfViewer/SkPdfRenderer.cpp
+++ b/experimental/PdfViewer/SkPdfRenderer.cpp
@@ -1455,10 +1455,20 @@ static PdfResult PdfOp_sc(PdfContext* pdfContext, SkCanvas* canvas, PdfTokenLoop
 }
 
 static PdfResult PdfOp_SCN_scn(PdfContext* pdfContext, SkCanvas* canvas, SkPdfColorOperator* colorOperator) {
-    //SkPdfString* name;
     if (pdfContext->fObjectStack.top()->isName()) {
-        // TODO(edisonn): get name, pass it
-        pdfContext->fObjectStack.pop();
+        SkPdfObject* name = pdfContext->fObjectStack.top();    pdfContext->fObjectStack.pop();
+
+        //Next, get the ExtGState Dictionary from the Resource Dictionary:
+        SkPdfDictionary* extGStateDictionary = pdfContext->fGraphicsState.fResources->Pattern(pdfContext->fPdfDoc);
+
+        if (extGStateDictionary == NULL) {
+#ifdef PDF_TRACE
+            printf("ExtGState is NULL!\n");
+#endif
+            return kIgnoreError_PdfResult;
+        }
+
+        /*SkPdfObject* value = */pdfContext->fPdfDoc->resolveReference(extGStateDictionary->get(name));
     }
 
     // TODO(edisonn): SCN supports more color spaces than SCN. Read and implement spec.
diff --git a/experimental/PdfViewer/pdfparser/native/SkNativeParsedPDF.cpp b/experimental/PdfViewer/pdfparser/native/SkNativeParsedPDF.cpp
index 597dfcdb6c..306bf0716b 100644
--- a/experimental/PdfViewer/pdfparser/native/SkNativeParsedPDF.cpp
+++ b/experimental/PdfViewer/pdfparser/native/SkNativeParsedPDF.cpp
@@ -519,6 +519,11 @@ SkPdfObject* SkNativeParsedPDF::resolveReference(const SkPdfObject* ref) {
         }
 
         if (fObjects[id].fResolvedReference != NULL) {
+
+#ifdef PDF_TRACE
+            printf("\nresolve(%s) = %s\n", ref->toString(0).c_str(), fObjects[id].fResolvedReference->toString(0, ref->toString().size() + 13).c_str());
+#endif
+
             return fObjects[id].fResolvedReference;
         }
 
@@ -534,8 +539,14 @@ SkPdfObject* SkNativeParsedPDF::resolveReference(const SkPdfObject* ref) {
             }
         }
 
+#ifdef PDF_TRACE
+        printf("\nresolve(%s) = %s\n", ref->toString(0).c_str(), fObjects[id].fResolvedReference->toString(0, ref->toString().size() + 13).c_str());
+#endif
         return fObjects[id].fResolvedReference;
     }
+
+
+
     // TODO(edisonn): fix the mess with const, probably we need to remove it pretty much everywhere
     return (SkPdfObject*)ref;
 }
diff --git a/experimental/PdfViewer/pdfparser/native/SkPdfObject.h b/experimental/PdfViewer/pdfparser/native/SkPdfObject.h
index f3832b2854..5e3bcdbe1d 100644
--- a/experimental/PdfViewer/pdfparser/native/SkPdfObject.h
+++ b/experimental/PdfViewer/pdfparser/native/SkPdfObject.h
@@ -123,6 +123,7 @@ public:
             case kString_PdfObjectType:
             case kHexString_PdfObjectType:
             case kKeyword_PdfObjectType:
+            case kName_PdfObjectType:
                 return (const char*)fStr.fBuffer;
 
             default:
@@ -136,6 +137,7 @@ public:
             case kString_PdfObjectType:
             case kHexString_PdfObjectType:
             case kKeyword_PdfObjectType:
+            case kName_PdfObjectType:
                 return fStr.fBytes;
 
             default:
@@ -682,6 +684,7 @@ public:
             case kString_PdfObjectType:
             case kHexString_PdfObjectType:
             case kKeyword_PdfObjectType:
+            case kName_PdfObjectType:
                 return fStr;
 
             default:
@@ -830,13 +833,13 @@ public:
         return true;
     }
 
-    void appendSpaces(SkString* str, int level) {
+    static void appendSpaces(SkString* str, int level) {
         for (int i = 0 ; i < level; i++) {
             str->append(" ");
         }
     }
 
-    SkString toString(int firstRowLevel = 0, int level = 0) {
+    SkString toString(int firstRowLevel = 0, int level = 0) const {
         SkString str;
         appendSpaces(&str, firstRowLevel);
         switch (fObjectType) {