Swiftgram/AsyncDisplayKit/AsyncDisplayKit+Debug.h
Hannah Troisi c857e809f4 Clean up header comments (for consistent Facebook licensing info) (#1741)
[Licensing] Clean up header comments (for consistent Facebook licensing info)
2016-06-11 23:31:39 -07:00

45 lines
1.8 KiB
Objective-C

//
// AsyncDisplayKit+Debug.h
// AsyncDisplayKit
//
// Created by Hannah Troisi on 3/7/16.
//
// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
#import "ASControlNode.h"
#import "ASImageNode.h"
@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
@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;
+ (BOOL)enableHitTestDebug;
@end