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RCTUIUtils.m
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RCTUIUtils.m
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/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#import "RCTUIUtils.h"
#import "RCTUtils.h"
RCTDimensions RCTGetDimensions(CGFloat fontScale)
{
UIScreen *mainScreen = UIScreen.mainScreen;
CGSize screenSize = mainScreen.bounds.size;
UIView *mainWindow;
mainWindow = RCTKeyWindow();
CGSize windowSize = mainWindow.bounds.size;
RCTDimensions result;
typeof (result.screen) dimsScreen = {
.width = screenSize.width,
.height = screenSize.height,
.scale = mainScreen.scale,
.fontScale = fontScale
};
typeof (result.window) dimsWindow = {
.width = windowSize.width,
.height = windowSize.height,
.scale = mainScreen.scale,
.fontScale = fontScale
};
result.screen = dimsScreen;
result.window = dimsWindow;
return result;
}
CGFloat RCTGetMultiplierForContentSizeCategory(UIContentSizeCategory category)
{
static NSDictionary<NSString *, NSNumber *> *multipliers = nil;
static dispatch_once_t token;
dispatch_once(&token, ^{
multipliers = @{
UIContentSizeCategoryExtraSmall: @0.823,
UIContentSizeCategorySmall: @0.882,
UIContentSizeCategoryMedium: @0.941,
UIContentSizeCategoryLarge: @1.0,
UIContentSizeCategoryExtraLarge: @1.118,
UIContentSizeCategoryExtraExtraLarge: @1.235,
UIContentSizeCategoryExtraExtraExtraLarge: @1.353,
UIContentSizeCategoryAccessibilityMedium: @1.786,
UIContentSizeCategoryAccessibilityLarge: @2.143,
UIContentSizeCategoryAccessibilityExtraLarge: @2.643,
UIContentSizeCategoryAccessibilityExtraExtraLarge: @3.143,
UIContentSizeCategoryAccessibilityExtraExtraExtraLarge: @3.571
};
});
double value = multipliers[category].doubleValue;
return value > 0.0 ? value : 1.0;
}