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 18 namespace content { 19 20 float GetScaleFactorForView(const RenderWidgetHostView* view) { 21 return ui::GetScaleFactorForNativeView(view ? view->GetNativeView() : NULL); 22 } 23 24 gfx::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 30 gfx::Size ConvertViewSizeToPixel(const RenderWidgetHostView* view, 31 const gfx::Size& size_in_dip) { 32 return ConvertSizeToPixel(GetScaleFactorForView(view), size_in_dip); 33 } 34 35 gfx::Rect ConvertViewRectToPixel(const RenderWidgetHostView* view, 36 const gfx::Rect& rect_in_dip) { 37 return ConvertRectToPixel(GetScaleFactorForView(view), rect_in_dip); 38 } 39 40 gfx::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 46 gfx::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 52 gfx::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 57 gfx::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