Swiftgram/AsyncDisplayKit/AsyncDisplayKit+Debug.h

39 lines
1.5 KiB
Objective-C

//
// AsyncDisplayKit+Debug.h
// AsyncDisplayKit
//
// Created by Hannah Troisi on 3/7/16.
// Copyright © 2016 Facebook. All rights reserved.
//
#import "ASControlNode.h"
#import "ASImageNode.h"
@interface ASControlNode (Debugging)
/**
Class method to enable a visualization overlay of the tappable area on the ASControlNode. For app debugging purposes only.
NOTE: GESTURE RECOGNIZERS, (including tap gesture recognizers on a control node) WILL NOT BE VISUALIZED!!!
Overlay = translucent GREEN color,
edges that are clipped by the tappable area of any parent (their bounds + hitTestSlop) in the hierarchy = DARK GREEN BORDERED EDGE,
edges that are clipped by clipToBounds = YES of any parent in the hierarchy = ORANGE BORDERED EDGE (may still receive touches beyond
overlay rect, but can't be visualized).
@param enable Specify YES to make this debug feature enabled when messaging the ASControlNode class.
*/
+ (void)setEnableHitTestDebug:(BOOL)enable;
@end
@interface ASImageNode (Debugging)
/**
* Enables an ASImageNode debug label that shows the ratio of pixels in the source image to those in
* the displayed bounds (including cropRect). This helps detect excessive image fetching / downscaling,
* as well as upscaling (such as providing a URL not suitable for a Retina device). For dev purposes only.
* @param enabled Specify YES to show the label on all ASImageNodes with non-1.0x source-to-bounds pixel ratio.
*/
+ (void)setShouldShowImageScalingOverlay:(BOOL)show;
+ (BOOL)shouldShowImageScalingOverlay;
@end