27 lines
421 B
Mathematica
27 lines
421 B
Mathematica
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// NSView+Visibility.m
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// Cog
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//
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// Created by Christopher Snowhill on 6/8/22.
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//
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#import "NSView+Visibility.h"
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@implementation NSView (Visibility)
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- (BOOL)visibleInWindow {
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if(self.window == nil) {
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return NO;
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}
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// Might have zero opacity.
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if(self.alphaValue == 0 || self.hiddenOrHasHiddenAncestor) {
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return NO;
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}
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// Might be clipped by an ancestor.
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return !NSIsEmptyRect(self.visibleRect);
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}
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@end
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