content/public/test/render_widget_test.h

   1 // Copyright (c) 2012 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 CONTENT_PUBLIC_TEST_RENDER_WIDGET_TEST_H_
   6 #define CONTENT_PUBLIC_TEST_RENDER_WIDGET_TEST_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/files/file_path.h"
  10 #include "content/public/test/render_view_test.h"
  11
  12 class SkBitmap;
  13
  14 namespace gfx {
  15 class Size;
  16 }
  17
  18 namespace content {
  19
  20 class RenderWidgetTest : public RenderViewTest {
  21  public:
  22   RenderWidgetTest();
  23
  24  protected:
  25   static const int kNumBytesPerPixel;
  26   static const int kLargeWidth;
  27   static const int kLargeHeight;
  28   static const int kSmallWidth;
  29   static const int kSmallHeight;
  30   static const int kTextPositionX;
  31   static const int kTextPositionY;
  32   static const uint32 kRedARGB;
  33
  34   // Helper function which calls OnMsgPaintAtSize and also paints the result
  35   // in the given bitmap.  The widget is resized to |page_size| before we paint
  36   // and the final image is resized to |desired_size|. This method is virtual so
  37   // that TestResizeAndPaint() can be reused by subclasses of this test class.
  38   virtual void ResizeAndPaint(const gfx::Size& page_size,
  39                               const gfx::Size& desired_size,
  40                               SkBitmap* snapshot);
  41
  42   // Test for ResizeAndPaint.
  43   void TestResizeAndPaint();
  44
  45   // Test for OnResize and Resize.
  46   void TestOnResize();
  47
  48   // Helper function which returns true if the given bitmap contains the given
  49   // ARGB color and false otherwise.
  50   bool ImageContainsColor(const SkBitmap& bitmap, uint32 argb_color);
  51
  52   // This can be used for debugging if you want to output a bitmap
  53   // image to a file.
  54   // FilePath tmp_path;
  55   // base::CreateTemporaryFile(&tmp_path);
  56   // OutputBitmapToFile(bitmap, tmp_path);
  57   // VLOG(0) << "Bitmap image stored at: " << tmp_path.value();
  58   void OutputBitmapToFile(const SkBitmap& bitmap,
  59                           const base::FilePath& file_path);
  60 };
  61
  62 }  // namespace content
  63
  64 #endif  // CONTENT_PUBLIC_TEST_RENDER_WIDGET_TEST_H_