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/gfx/display.h"
9#include "ui/gfx/point.h"
10#include "ui/gfx/point_conversions.h"
11#include "ui/gfx/rect.h"
12#include "ui/gfx/rect_conversions.h"
13#include "ui/gfx/screen.h"
14#include "ui/gfx/size.h"
15#include "ui/gfx/size_conversions.h"
16
17namespace content {
18namespace {
19
20float GetScaleForView(const RenderWidgetHostView* view) {
21  return ui::GetScaleFactorScale(GetScaleFactorForView(view));
22}
23
24}  // namespace
25
26ui::ScaleFactor GetScaleFactorForView(const RenderWidgetHostView* view) {
27  return ui::GetScaleFactorForNativeView(view ? view->GetNativeView() : NULL);
28}
29
30gfx::Point ConvertViewPointToDIP(const RenderWidgetHostView* view,
31                                 const gfx::Point& point_in_pixel) {
32  return gfx::ToFlooredPoint(
33      gfx::ScalePoint(point_in_pixel, 1.0f / GetScaleForView(view)));
34}
35
36gfx::Size ConvertViewSizeToPixel(const RenderWidgetHostView* view,
37                                 const gfx::Size& size_in_dip) {
38  return gfx::ToFlooredSize(
39      gfx::ScaleSize(size_in_dip, GetScaleForView(view)));
40}
41
42gfx::Rect ConvertViewRectToPixel(const RenderWidgetHostView* view,
43                                 const gfx::Rect& rect_in_dip) {
44    return ConvertRectToPixel(GetScaleForView(view), rect_in_dip);
45}
46
47gfx::Size ConvertSizeToDIP(float scale_factor,
48                           const gfx::Size& size_in_pixel) {
49  return gfx::ToFlooredSize(
50      gfx::ScaleSize(size_in_pixel, 1.0f / scale_factor));
51}
52
53gfx::Rect ConvertRectToDIP(float scale_factor,
54                           const gfx::Rect& rect_in_pixel) {
55  return gfx::ToFlooredRectDeprecated(
56      gfx::ScaleRect(rect_in_pixel, 1.0f / scale_factor));
57}
58
59
60gfx::Rect ConvertRectToPixel(float scale_factor,
61                             const gfx::Rect& rect_in_dip) {
62    return gfx::ToFlooredRectDeprecated(
63        gfx::ScaleRect(rect_in_dip, scale_factor));
64}
65
66}  // namespace content
67