Add SkPDFResourceDict class, refactor existing code

src/pdf/SkPDFUtils.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkData.h"
 #include "SkGeometry.h"
 #include "SkPaint.h"
 #include "SkPath.h"
+#include "SkPDFResourceDict.h"
 #include "SkPDFUtils.h"
 #include "SkStream.h"
 #include "SkString.h"
 #include "SkPDFTypes.h"
 
 // static
 SkPDFArray* SkPDFUtils::MatrixToArray(const SkMatrix& matrix) {
     SkScalar values[6];
     if (!matrix.asAffine(values)) {
         SkMatrix::SetAffineIdentity(values);
@@ skipping 175 matching lines @@
 }
 
 // static
 void SkPDFUtils::StrokePath(SkWStream* content) {
     SkPDFUtils::PaintPath(
         SkPaint::kStroke_Style, SkPath::kWinding_FillType, content);
 }
 
 // static
 void SkPDFUtils::DrawFormXObject(int objectIndex, SkWStream* content) {
-    content->writeText("/X");
-    content->writeDecAsText(objectIndex);
+    content->writeText("/");
+    content->writeText(SkPDFResourceDict::getResourceName(
+            SkPDFResourceDict::kXObject_ResourceType,
+            objectIndex).c_str());
     content->writeText(" Do\n");
 }
 
 // static
 void SkPDFUtils::ApplyGraphicState(int objectIndex, SkWStream* content) {
-    content->writeText("/G");
-    content->writeDecAsText(objectIndex);
+    content->writeText("/");
+    content->writeText(SkPDFResourceDict::getResourceName(
+            SkPDFResourceDict::kExtGState_ResourceType,
+            objectIndex).c_str());
     content->writeText(" gs\n");
 }