/usr/include/GNUstep/GNUstepGUI/GSAnimator.h is in libgnustep-gui-dev 0.24.0-3.
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GSAnimator.h
Author: Xavier Glattard (xgl) <xavier.glattard@online.fr>
Copyright (c) 2007 Free Software Foundation, Inc.
This file is part of the GNUstep GUI Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; see the file COPYING.LIB.
If not, see <http://www.gnu.org/licenses/> or write to the
Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef _GNUstep_H_GSAnimator_
#define _GNUstep_H_GSAnimator_
#import <Foundation/NSDate.h>
#import <Foundation/NSObject.h>
#import <Foundation/NSZone.h>
@class NSArray;
@class NSEvent;
@class NSRunLoop;
@class NSString;
@class NSTimer;
/**
* Protocol that needs to be adopted by classes that want to
* be animated by a GSAnimator.
*/
@protocol GSAnimation
/** Call back method indicating that the GSAnimator did start the
* animation loop. */
- (void) animatorDidStart;
/** Call back method indicating that the GSAnimator did stop the
* animation loop. */
- (void) animatorDidStop;
/** Call back method called for each animation loop. */
- (void) animatorStep: (NSTimeInterval)elapsedTime;
@end
/**
* GSAnimator is the front of a class cluster. Instances of a subclass of
* GSAnimator manage the timing of an animation.
*/
@interface GSAnimator : NSObject
{
id<GSAnimation> _animation; // The Object to be animated
BOOL _running; // Indicates that the animator is looping
NSTimeInterval _elapsed; // Elapsed time since the animator started
NSTimeInterval _lastFrame; // The time of the last animation loop
unsigned int _frameCount; // The number of loops since the start
NSArray *_runLoopModes;
NSTimer *_timer; // Timer used for looping
NSTimeInterval _timerInterval;
}
/** Returns a GSAnimator object initialized with the specified object
* to be animated as fast as possible. */
+ (GSAnimator*) animatorWithAnimation: (id<GSAnimation>)anAnimation;
/** Returns a GSAnimator object initialized with the specified object
* to be animated. */
+ (GSAnimator*) animatorWithAnimation: (id<GSAnimation>)anAnimation
frameRate: (float)fps;
/** Returns a GSAnimator object allocated in the given NSZone and
* initialized with the specified object to be animated. */
+ (GSAnimator*) animatorWithAnimation: (id<GSAnimation>)anAnimation
frameRate: (float)fps
zone: (NSZone*)aZone;
/** Returns a GSAnimator object initialized with the specified object
* to be animated. The given NSRunLoop is used in NSDefaultRunLoopMode.*/
- (GSAnimator*) initWithAnimation: (id<GSAnimation>)anAnimation
frameRate: (float)aFrameRate;
- (GSAnimator*) initWithAnimation: (id<GSAnimation>)anAnimation;
- (unsigned int) frameCount;
- (void) resetCounters;
- (float) frameRate;
- (NSArray*) runLoopModesForAnimating;
- (void) setRunLoopModesForAnimating: (NSArray*)modes;
- (void) startAnimation;
- (void) stopAnimation;
- (BOOL) isAnimationRunning;
- (void) startStopAnimation;
- (void) stepAnimation;
@end
#endif /* _GNUstep_H_GSAnimator_ */
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