content/renderer/sad_plugin.cc

   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 #include "content/renderer/sad_plugin.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/memory/scoped_ptr.h"
  10 #include "skia/ext/platform_canvas.h"
  11 #include "ui/gfx/blit.h"
  12 #include "ui/gfx/geometry/rect.h"
  13
  14 namespace content {
  15
  16 void PaintSadPlugin(blink::WebCanvas* webcanvas,
  17                     const gfx::Rect& plugin_rect,
  18                     const SkBitmap& sad_plugin_bitmap) {
  19   const int width = plugin_rect.width();
  20   const int height = plugin_rect.height();
  21
  22   SkCanvas* canvas = webcanvas;
  23   SkAutoCanvasRestore auto_restore(canvas, true);
  24   // We draw the sad-plugin bitmap at the origin of canvas.
  25   // Add a translation so that it appears at the origin of plugin rect.
  26   canvas->translate(plugin_rect.x(), plugin_rect.y());
  27
  28   SkPaint paint;
  29   paint.setStyle(SkPaint::kFill_Style);
  30   paint.setColor(SK_ColorBLACK);
  31   canvas->drawRectCoords(0, 0, SkIntToScalar(width), SkIntToScalar(height),
  32                          paint);
  33   canvas->drawBitmap(
  34       sad_plugin_bitmap,
  35       SkIntToScalar(std::max(0, (width - sad_plugin_bitmap.width()) / 2)),
  36       SkIntToScalar(std::max(0, (height - sad_plugin_bitmap.height()) / 2)));
  37 }
  38
  39 }  // namespace content