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54 lines
1.9 KiB
Objective-C
54 lines
1.9 KiB
Objective-C
//
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// GTMUIView+SubtreeDescription.h
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//
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// Copyright 2009 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy
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// of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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//
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#import <UIKit/UIKit.h>
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// This entire file, and the corresponding .m is DEBUG only.
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// But you can define INCLUDE_UIVIEW_SUBTREE_DESCRIPTION to no-zero to override.
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#if DEBUG || INCLUDE_UIVIEW_SUBTREE_DESCRIPTION
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// Example, in debugger, pause the program, then type:
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// po [[[UIApplication sharedApplication] keyWindow] subtreeDescription]
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@interface UIView (SubtreeDescription)
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// Returns one line, without leading indent, but with a trailing newline,
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// describing the view.
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// If you define a |myViewDescriptionLine| method in your own UIView classes,
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// this will append that result to its description.
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- (NSString *)gtm_subtreeDescriptionLine;
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// For debugging. Returns a nicely indented representation of this view's
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// subview hierarchy, each with frame and isHidden.
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- (NSString *)subtreeDescription;
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// For debugging. Returns a nicely indented representation of this view's
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// layer hierarchy, with frames and isHidden.
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// Requires QuartzCore to be useful, but your app will still link without it.
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// TODO: should there be an analog of myViewDescriptionLine for layers?
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- (NSString *)sublayersDescription;
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@end
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@protocol GTMUIViewSubtreeDescription
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// A UIView can implement this and it can add it's own custom description
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// in gtm_subtreeDescriptionLine.
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- (NSString *)myViewDescriptionLine;
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@end
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#endif // DEBUG
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