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/browser/renderer_host/dip_util.h"
6
7#include "content/public/browser/render_widget_host_view.h"
8#include "ui/base/layout.h"
9#include "ui/gfx/display.h"
10#include "ui/gfx/point.h"
11#include "ui/gfx/point_conversions.h"
12#include "ui/gfx/rect.h"
13#include "ui/gfx/rect_conversions.h"
14#include "ui/gfx/screen.h"
15#include "ui/gfx/size.h"
16#include "ui/gfx/size_conversions.h"
17
18namespace content {
19
20float GetScaleFactorForView(const RenderWidgetHostView* view) {
21  return ui::GetScaleFactorForNativeView(view ? view->GetNativeView() : NULL);
22}
23
24gfx::Point ConvertViewPointToDIP(const RenderWidgetHostView* view,
25                                 const gfx::Point& point_in_pixel) {
26  return gfx::ToFlooredPoint(
27      gfx::ScalePoint(point_in_pixel, 1.0f / GetScaleFactorForView(view)));
28}
29
30gfx::Size ConvertViewSizeToPixel(const RenderWidgetHostView* view,
31                                 const gfx::Size& size_in_dip) {
32  return ConvertSizeToPixel(GetScaleFactorForView(view), size_in_dip);
33}
34
35gfx::Rect ConvertViewRectToPixel(const RenderWidgetHostView* view,
36                                 const gfx::Rect& rect_in_dip) {
37  return ConvertRectToPixel(GetScaleFactorForView(view), rect_in_dip);
38}
39
40gfx::Size ConvertSizeToDIP(float scale_factor,
41                           const gfx::Size& size_in_pixel) {
42  return gfx::ToFlooredSize(
43      gfx::ScaleSize(size_in_pixel, 1.0f / scale_factor));
44}
45
46gfx::Rect ConvertRectToDIP(float scale_factor,
47                           const gfx::Rect& rect_in_pixel) {
48  return gfx::ToFlooredRectDeprecated(
49      gfx::ScaleRect(rect_in_pixel, 1.0f / scale_factor));
50}
51
52gfx::Size ConvertSizeToPixel(float scale_factor,
53                             const gfx::Size& size_in_dip) {
54  return gfx::ToFlooredSize(gfx::ScaleSize(size_in_dip, scale_factor));
55}
56
57gfx::Rect ConvertRectToPixel(float scale_factor,
58                             const gfx::Rect& rect_in_dip) {
59    return gfx::ToFlooredRectDeprecated(
60        gfx::ScaleRect(rect_in_dip, scale_factor));
61}
62
63}  // namespace content
64