ui/views/window/window_shape.cc

   1 // Copyright (c) 2011 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 "ui/views/window/window_shape.h"
   6
   7 #include "ui/gfx/geometry/size.h"
   8 #include "ui/gfx/path.h"
   9
  10 namespace views {
  11
  12 void GetDefaultWindowMask(const gfx::Size &size, gfx::Path *window_mask) {
  13   // Redefine the window visible region for the new size.
  14   window_mask->moveTo(0, 3);
  15   window_mask->lineTo(1, 2);
  16   window_mask->lineTo(1, 1);
  17   window_mask->lineTo(2, 1);
  18   window_mask->lineTo(3, 0);
  19
  20   window_mask->lineTo(SkIntToScalar(size.width() - 3), 0);
  21   window_mask->lineTo(SkIntToScalar(size.width() - 2), 1);
  22   window_mask->lineTo(SkIntToScalar(size.width() - 1), 1);
  23   window_mask->lineTo(SkIntToScalar(size.width() - 1), 2);
  24   window_mask->lineTo(SkIntToScalar(size.width()), 3);
  25
  26   window_mask->lineTo(SkIntToScalar(size.width()),
  27                       SkIntToScalar(size.height() - 3));
  28   window_mask->lineTo(SkIntToScalar(size.width() - 1),
  29                       SkIntToScalar(size.height() - 3));
  30   window_mask->lineTo(SkIntToScalar(size.width() - 1),
  31                       SkIntToScalar(size.height() - 1));
  32   window_mask->lineTo(SkIntToScalar(size.width() - 3),
  33                       SkIntToScalar(size.height() - 2));
  34   window_mask->lineTo(SkIntToScalar(size.width() - 3),
  35                       SkIntToScalar(size.height()));
  36
  37   window_mask->lineTo(3, SkIntToScalar(size.height()));
  38   window_mask->lineTo(2, SkIntToScalar(size.height() - 2));
  39   window_mask->lineTo(1, SkIntToScalar(size.height() - 1));
  40   window_mask->lineTo(1, SkIntToScalar(size.height() - 3));
  41   window_mask->lineTo(0, SkIntToScalar(size.height() - 3));
  42
  43   window_mask->close();
  44 }
  45
  46 } // namespace views