Valentin Shergin a3f9ff4f93 Fabric: pointScaleFactor is now part of LayoutContext and LayoutMetrics
Summary:
@public
... and we initalize this in Surface.
We need this for requesting images with proper size/pixel-density, setup proper parameters for rasterizing CALayer's and rounding layout metric values.
Then we have to figure out how to wire this up with YGConfig.

Reviewed By: fkgozali

Differential Revision: D8475639

fbshipit-source-id: cec7af581b94efb4595dcf3f232252ce87a1fde3
2018-06-22 07:32:49 -07:00

47 lines
1.3 KiB
C++

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#pragma once
#include <fabric/core/LayoutPrimitives.h>
#include <fabric/graphics/Geometry.h>
namespace facebook {
namespace react {
/*
* Describes results of layout process for partucular shadow node.
*/
struct LayoutMetrics {
Rect frame;
EdgeInsets contentInsets {0};
EdgeInsets borderWidth {0};
DisplayType displayType {DisplayType::Flex};
LayoutDirection layoutDirection {LayoutDirection::Undefined};
Float pointScaleFactor {1.0};
Rect getContentFrame() const {
return Rect {
Point {contentInsets.left, contentInsets.top},
Size {frame.size.width - contentInsets.left - contentInsets.right, frame.size.height - contentInsets.top - contentInsets.bottom}
};
}
bool operator ==(const LayoutMetrics& rhs) const {
return
std::tie(this->frame, this->contentInsets, this->borderWidth, this->displayType, this->layoutDirection) ==
std::tie(rhs.frame, rhs.contentInsets, rhs.borderWidth, rhs.displayType, rhs.layoutDirection);
}
bool operator !=(const LayoutMetrics& rhs) const {
return !(*this == rhs);
}
};
} // namespace react
} // namespace facebook