ui/compositor/dip_util.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 "ui/compositor/dip_util.h"
   6
   7 #include "base/command_line.h"
   8 #include "ui/base/ui_base_switches.h"
   9 #include "ui/compositor/compositor.h"
  10 #include "ui/compositor/compositor_switches.h"
  11 #include "ui/compositor/layer.h"
  12 #include "ui/gfx/display.h"
  13 #include "ui/gfx/point.h"
  14 #include "ui/gfx/point_conversions.h"
  15 #include "ui/gfx/rect.h"
  16 #include "ui/gfx/rect_conversions.h"
  17 #include "ui/gfx/size.h"
  18 #include "ui/gfx/size_conversions.h"
  19
  20 namespace ui {
  21
  22 float GetDeviceScaleFactor(const Layer* layer) {
  23   return layer->device_scale_factor();
  24 }
  25
  26 gfx::Point ConvertPointToDIP(const Layer* layer,
  27                              const gfx::Point& point_in_pixel) {
  28   return gfx::ToFlooredPoint(
  29       gfx::ScalePoint(point_in_pixel, 1.0f / GetDeviceScaleFactor(layer)));
  30 }
  31
  32 gfx::PointF ConvertPointToDIP(const Layer* layer,
  33                               const gfx::PointF& point_in_pixel) {
  34   return gfx::ScalePoint(point_in_pixel, 1.0f / GetDeviceScaleFactor(layer));
  35 }
  36
  37 gfx::Size ConvertSizeToDIP(const Layer* layer,
  38                            const gfx::Size& size_in_pixel) {
  39   return gfx::ToFlooredSize(
  40       gfx::ScaleSize(size_in_pixel, 1.0f / GetDeviceScaleFactor(layer)));
  41 }
  42
  43 gfx::Rect ConvertRectToDIP(const Layer* layer,
  44                            const gfx::Rect& rect_in_pixel) {
  45   float scale = 1.0f / GetDeviceScaleFactor(layer);
  46   return gfx::ToFlooredRectDeprecated(gfx::ScaleRect(rect_in_pixel, scale));
  47 }
  48
  49 gfx::Point ConvertPointToPixel(const Layer* layer,
  50                                const gfx::Point& point_in_dip) {
  51   return gfx::ToFlooredPoint(
  52       gfx::ScalePoint(point_in_dip, GetDeviceScaleFactor(layer)));
  53 }
  54
  55 gfx::Size ConvertSizeToPixel(const Layer* layer,
  56                              const gfx::Size& size_in_dip) {
  57   return gfx::ToFlooredSize(
  58       gfx::ScaleSize(size_in_dip, GetDeviceScaleFactor(layer)));
  59 }
  60
  61 gfx::Rect ConvertRectToPixel(const Layer* layer,
  62                              const gfx::Rect& rect_in_dip) {
  63   float scale = GetDeviceScaleFactor(layer);
  64   return gfx::ToFlooredRectDeprecated(gfx::ScaleRect(rect_in_dip, scale));
  65 }
  66 }  // namespace ui