third_party/WebKit/public/web/WebGraphicsContext.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef WebGraphicsContext_h
   6 #define WebGraphicsContext_h
   7
   8 #include "public/platform/WebCanvas.h"
   9 #include "public/platform/WebFloatRect.h"
  10
  11 namespace blink {
  12
  13 // Wraps a blink::GraphicsContext.
  14 // Internal consumers can extract the underlying context (via WebGraphicsContextImpl).
  15 // External consumers can make a single drawing using a WebCanvas.
  16 class WebGraphicsContext {
  17 public:
  18     virtual WebCanvas* beginDrawing(const WebFloatRect& bounds) = 0;
  19     virtual void endDrawing() = 0;
  20
  21 protected:
  22     ~WebGraphicsContext() { }
  23 };
  24
  25 } // namespace blink
  26
  27 #endif