ui/android/resources/resource_manager.cc

   1 // Copyright 2014 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/android/resources/resource_manager.h"
   6
   7 #include "ui/gfx/geometry/insets_f.h"
   8
   9 namespace ui {
  10
  11 ResourceManager::Resource::Resource() {
  12 }
  13
  14 ResourceManager::Resource::~Resource() {
  15 }
  16
  17 gfx::Rect ResourceManager::Resource::Border(const gfx::Size& bounds) const {
  18   return Border(bounds, gfx::InsetsF(1.f, 1.f, 1.f, 1.f));
  19 }
  20
  21 gfx::Rect ResourceManager::Resource::Border(const gfx::Size& bounds,
  22                                             const gfx::InsetsF& scale) const {
  23   // Calculate whether or not we need to scale down the border if the bounds of
  24   // the layer are going to be smaller than the aperture padding.
  25   float x_scale = std::min((float)bounds.width() / size.width(), 1.f);
  26   float y_scale = std::min((float)bounds.height() / size.height(), 1.f);
  27
  28   float left_scale = std::min(x_scale * scale.left(), 1.f);
  29   float right_scale = std::min(x_scale * scale.right(), 1.f);
  30   float top_scale = std::min(y_scale * scale.top(), 1.f);
  31   float bottom_scale = std::min(y_scale * scale.bottom(), 1.f);
  32
  33   return gfx::Rect(aperture.x() * left_scale, aperture.y() * top_scale,
  34                    (size.width() - aperture.width()) * right_scale,
  35                    (size.height() - aperture.height()) * bottom_scale);
  36 }
  37
  38 }  // namespace ui