Move annotations to canvas virtual (patchset #8 id:140001 of https://codereview.chromium.org/174410…

src/core/SkAnnotation.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkAnnotation.h"
-#include "SkData.h"
-#include "SkPaint.h"
+#include "SkAnnotationKeys.h"
+#include "SkCanvas.h"
 #include "SkPoint.h"
-#include "SkReadBuffer.h"
-#include "SkWriteBuffer.h"
-
-SkAnnotation::SkAnnotation(const char key[], SkData* value) : fKey(key) {
-    if (nullptr == value) {
-        value = SkData::NewEmpty();
-    } else {
-        value->ref();
-    }
-    fData = value;
-}
-
-SkAnnotation::~SkAnnotation() {
-    fData->unref();
-}
-
-SkData* SkAnnotation::find(const char key[]) const {
-    return fKey.equals(key) ? fData : nullptr;
-}
-
-SkAnnotation::SkAnnotation(SkReadBuffer& buffer) {
-    buffer.readString(&fKey);
-    fData = buffer.readByteArrayAsData();
-}
-
-void SkAnnotation::writeToBuffer(SkWriteBuffer& buffer) const {
-    buffer.writeString(fKey.c_str());
-    buffer.writeDataAsByteArray(fData);
-}
+#include "SkRect.h"
 
 const char* SkAnnotationKeys::URL_Key() {
     return "SkAnnotationKey_URL";
 };
 
 const char* SkAnnotationKeys::Define_Named_Dest_Key() {
     return "SkAnnotationKey_Define_Named_Dest";
 };
 
 const char* SkAnnotationKeys::Link_Named_Dest_Key() {
     return "SkAnnotationKey_Link_Named_Dest";
 };
 
-///////////////////////////////////////////////////////////////////////////////
-
-#include "SkCanvas.h"
-
-static void annotate_paint(SkPaint& paint, const char* key, SkData* value) {
-    paint.setAnnotation(SkAnnotation::Create(key, value))->unref();
-}
+//////////////////////////////////////////////////////////////////////////////////////////////////
 
 void SkAnnotateRectWithURL(SkCanvas* canvas, const SkRect& rect, SkData* value) {
     if (nullptr == value) {
         return;
     }
-    SkPaint paint;
-    annotate_paint(paint, SkAnnotationKeys::URL_Key(), value);
-    canvas->drawRect(rect, paint);
+    canvas->drawAnnotation(rect, SkAnnotationKeys::URL_Key(), value);
 }
 
 void SkAnnotateNamedDestination(SkCanvas* canvas, const SkPoint& point, SkData* name) {
     if (nullptr == name) {
         return;
     }
-    SkPaint paint;
-    annotate_paint(paint, SkAnnotationKeys::Define_Named_Dest_Key(), name);
-    canvas->drawPoint(point.x(), point.y(), paint);
+    const SkRect rect = SkRect::MakeXYWH(point.x(), point.y(), 0, 0);
+    canvas->drawAnnotation(rect, SkAnnotationKeys::Define_Named_Dest_Key(), name);
 }
 
 void SkAnnotateLinkToDestination(SkCanvas* canvas, const SkRect& rect, SkData* name) {
     if (nullptr == name) {
         return;
     }
-    SkPaint paint;
-    annotate_paint(paint, SkAnnotationKeys::Link_Named_Dest_Key(), name);
-    canvas->drawRect(rect, paint);
+    canvas->drawAnnotation(rect, SkAnnotationKeys::Link_Named_Dest_Key(), name);
 }