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// Copyright 2014 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/gfx/geometry/dip_util.h"
#include "ui/gfx/geometry/point.h"
#include "ui/gfx/geometry/point_conversions.h"
#include "ui/gfx/geometry/point_f.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/geometry/size_conversions.h"
namespace gfx {
gfx::Point ConvertPointToDIP(float scale_factor,
const gfx::Point& point_in_pixel) {
return gfx::ToFlooredPoint(
gfx::ScalePoint(point_in_pixel, 1.0f / scale_factor));
}
gfx::PointF ConvertPointToDIP(float scale_factor,
const gfx::PointF& point_in_pixel) {
return gfx::ScalePoint(point_in_pixel, 1.0f / scale_factor);
}
gfx::Size ConvertSizeToDIP(float scale_factor, const gfx::Size& size_in_pixel) {
return gfx::ToFlooredSize(gfx::ScaleSize(size_in_pixel, 1.0f / scale_factor));
}
gfx::Rect ConvertRectToDIP(float scale_factor, const gfx::Rect& rect_in_pixel) {
return gfx::ToFlooredRectDeprecated(
gfx::ScaleRect(rect_in_pixel, 1.0f / scale_factor));
}
gfx::Point ConvertPointToPixel(float scale_factor,
const gfx::Point& point_in_dip) {
return gfx::ToFlooredPoint(gfx::ScalePoint(point_in_dip, scale_factor));
}
gfx::Size ConvertSizeToPixel(float scale_factor, const gfx::Size& size_in_dip) {
return gfx::ToFlooredSize(gfx::ScaleSize(size_in_dip, scale_factor));
}
gfx::Rect ConvertRectToPixel(float scale_factor, const gfx::Rect& rect_in_dip) {
// 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_factor),
gfx::ScaleSize(rect_in_dip.size(), scale_factor)));
}
} // namespace gfx
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