iOS开发《涂鸦》源码

// // MBProgressHUD.h // Version 0.7 // Created by Matej Bukovinski on 2.4.09. // // This code is distributed under the terms and conditions of the MIT license. // Copyright (c) 2013 Matej Bukovinski // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. #import <Foundation/Foundation.h> #import <UIKit/UIKit.h> #import <CoreGraphics/CoreGraphics.h> @protocol MBProgressHUDDelegate; typedef enum { /** Progress is shown using an UIActivityIndicatorView. This is the default. */ MBProgressHUDModeIndeterminate, /** Progress is shown using a round, pie-chart like, progress view. */ MBProgressHUDModeDeterminate, /** Progress is shown using a horizontal progress bar */ MBProgressHUDModeDeterminateHorizontalBar, /** Progress is shown using a ring-shaped progress view. */ MBProgressHUDModeAnnularDeterminate, /** Shows a custom view */ MBProgressHUDModeCustomView, /** Shows only labels */ MBProgressHUDModeText } MBProgressHUDMode; typedef enum { /** Opacity animation */ MBProgressHUDAnimationFade, /** Opacity + scale animation */ MBProgressHUDAnimationZoom, MBProgressHUDAnimationZoomOut = MBProgressHUDAnimationZoom, MBProgressHUDAnimationZoomIn } MBProgressHUDAnimation; #ifndef MB_INSTANCETYPE #if __has_feature(objc_instancetype) #define MB_INSTANCETYPE instancetype #else #define MB_INSTANCETYPE id #endif #endif #ifndef MB_STRONG #if __has_feature(objc_arc) #define MB_STRONG strong #else #define MB_STRONG retain #endif #endif #ifndef MB_WEAK #if __has_feature(objc_arc_weak) #define MB_WEAK weak #elif __has_feature(objc_arc) #define MB_WEAK unsafe_unretained #else #define MB_WEAK assign #endif #endif #if NS_BLOCKS_AVAILABLE typedef void (^MBProgressHUDCompletionBlock)(); #endif /** * Displays a simple HUD window containing a progress indicator and two optional labels for short messages. * * This is a simple drop-in class for displaying a progress HUD view similar to Apple's private UIProgressHUD class. * The MBProgressHUD window spans over the entire space given to it by the initWithFrame constructor and catches all * user input on this region, thereby preventing the user operations on components below the view. The HUD itself is * drawn centered as a rounded semi-transparent view which resizes depending on the user specified content. * * This view supports four modes of operation: * - MBProgressHUDModeIndeterminate - shows a UIActivityIndicatorView * - MBProgressHUDModeDeterminate - shows a custom round progress indicator * - MBProgressHUDModeAnnularDeterminate - shows a custom annular progress indicator * - MBProgressHUDModeCustomView - shows an arbitrary, user specified view (@see customView) * * All three modes can have optional labels assigned: * - If the labelText property is set and non-empty then a label containing the provided content is placed below the * indicator view. * - If also the detailsLabelText property is set then another label is placed below the first label. */ @interface MBProgressHUD : UIView /** * Creates a new HUD, adds it to provided view and shows it. The counterpart to this method is hideHUDForView:animated:. * * @param view The view that the HUD will be added to * @param animated If set to YES the HUD will appear using the current animationType. If set to NO the HUD will not use * animations while appearing. * @return A reference to the created HUD. * * @see hideHUDForView:animated: * @see animationType */ + (MB_INSTANCETYPE)showHUDAddedTo:(UIView *)view animated:(BOOL)animated; /** * Finds the top-most HUD subview and hides it. The counterpart to this method is showHUDAddedTo:animated:. * * @param view The view that is going to be searched for a HUD subview. * @param animated If set to YES the HUD will disappear using the current animationType. If set to NO the HUD will not use * animations while disappearing. * @return YES if a HUD was found and removed, NO otherwise. * * @see showHUDAddedTo:animated: * @see animationType */ + (BOOL)hideHUDForView:(UIView *)view animated:(BOOL)animated; /** * Finds all the HUD subviews and hides them. * * @param view The view that is going to be searched for HUD subviews. * @param animated If set to YES the HUDs will disappear using the current animationType. If set to NO the HUDs will not use * animations while disappearing. * @return the number of HUDs found and removed. * * @see hideHUDForView:animated: * @see animationType */ + (NSUInteger)hideAllHUDsForView:(UIView *)view animated:(BOOL)animated; /** * Finds the top-most HUD subview and returns it. * * @param view The view that is going to be searched. * @return A reference to the last HUD subview discovered. */ + (MB_INSTANCETYPE)HUDForView:(UIView *)view; /** * Finds all HUD subviews and returns them. * * @param view The view that is going to be searched. * @return All found HUD views (array of MBProgressHUD objects). */ + (NSArray *)allHUDsForView:(UIView *)view; /** * A convenience constructor that initializes the HUD with the window's bounds. Calls the designated constructor with * window.bounds as the parameter. * * @param window The window instance that will provide the bounds for the HUD. Should be the same instance as * the HUD's superview (i.e., the window that the HUD will be added to). */ - (id)initWithWindow:(UIWindow *)window; /** * A convenience constructor that initializes the HUD with the view's bounds. Calls the designated constructor with * view.bounds as the parameter * * @param view The view instance that will provide the bounds for the HUD. Should be the same instance as * the HUD's superview (i.e., the view that the HUD will be added to). */ - (id)initWithView:(UIView *)view; /** * Display the HUD. You need to make sure that the main thread completes its run loop soon after this method call so * the user interface can be updated. Call this method when your task is already set-up to be executed in a new thread * (e.g., when using something like NSOperation or calling an asynchronous call like NSURLRequest). * * @param animated If set to YES the HUD will appear using the current animationType. If set to NO the HUD will not use * animations while appearing. * * @see animationType */ - (void)show:(BOOL)animated; /** * Hide the HUD. This still calls the hudWasHidden: delegate. This is the counterpart of the show: method. Use it to * hide the HUD when your task completes. * * @param animated If set to YES the HUD will disappear using the current animationType. If set to NO the HUD will not use * animations while disappearing. * * @see animationType */ - (void)hide:(BOOL)animated; /** * Hide the HUD after a delay. This still calls the hudWasHidden: delegate. This is the counterpart of the show: method. Use it to * hide the HUD when your task completes. * * @param animated If set to YES the HUD will disappear using the current animationType. If set to NO the HUD will not use