| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ui/compositor/dip_util.h" |
| |
| #include "base/command_line.h" |
| #include "ui/compositor/compositor.h" |
| #include "ui/compositor/compositor_switches.h" |
| #include "ui/compositor/layer.h" |
| #include "ui/gfx/display.h" |
| #include "ui/gfx/point.h" |
| #include "ui/gfx/point_conversions.h" |
| #include "ui/gfx/rect.h" |
| #include "ui/gfx/rect_conversions.h" |
| #include "ui/gfx/size.h" |
| #include "ui/gfx/size_conversions.h" |
| |
| namespace ui { |
| |
| float GetDeviceScaleFactor(const Layer* layer) { |
| return layer->device_scale_factor(); |
| } |
| |
| gfx::Point ConvertPointToDIP(const Layer* layer, |
| const gfx::Point& point_in_pixel) { |
| return gfx::ToFlooredPoint( |
| gfx::ScalePoint(point_in_pixel, 1.0f / GetDeviceScaleFactor(layer))); |
| } |
| |
| gfx::PointF ConvertPointToDIP(const Layer* layer, |
| const gfx::PointF& point_in_pixel) { |
| return gfx::ScalePoint(point_in_pixel, 1.0f / GetDeviceScaleFactor(layer)); |
| } |
| |
| gfx::Size ConvertSizeToDIP(const Layer* layer, |
| const gfx::Size& size_in_pixel) { |
| return gfx::ToFlooredSize( |
| gfx::ScaleSize(size_in_pixel, 1.0f / GetDeviceScaleFactor(layer))); |
| } |
| |
| gfx::Rect ConvertRectToDIP(const Layer* layer, |
| const gfx::Rect& rect_in_pixel) { |
| float scale = 1.0f / GetDeviceScaleFactor(layer); |
| return gfx::ToFlooredRectDeprecated(gfx::ScaleRect(rect_in_pixel, scale)); |
| } |
| |
| gfx::Point ConvertPointToPixel(const Layer* layer, |
| const gfx::Point& point_in_dip) { |
| return gfx::ToFlooredPoint( |
| gfx::ScalePoint(point_in_dip, GetDeviceScaleFactor(layer))); |
| } |
| |
| gfx::Size ConvertSizeToPixel(const Layer* layer, |
| const gfx::Size& size_in_dip) { |
| return gfx::ToFlooredSize( |
| gfx::ScaleSize(size_in_dip, GetDeviceScaleFactor(layer))); |
| } |
| |
| gfx::Rect ConvertRectToPixel(const Layer* layer, |
| const gfx::Rect& rect_in_dip) { |
| float scale = GetDeviceScaleFactor(layer); |
| // Use ToEnclosingRect() to ensure we paint all the possible pixels |
| // touched. ToEnclosingRect() floors the origin, and ceils the max |
| // coordinate. To do otherwise (such as flooring the size) potentially |
| // results in rounding down and not drawing all the pixels that are |
| // touched. |
| return gfx::ToEnclosingRect( |
| gfx::RectF(gfx::ScalePoint(rect_in_dip.origin(), scale), |
| gfx::ScaleSize(rect_in_dip.size(), scale))); |
| } |
| |
| } // namespace ui |