/*  GlobeRotateDelegate.h
 *  WhirlyGlobeLib
 *
 *  Created by Steve Gifford on 6/10/11.
 *  Copyright 2011-2022 mousebird consulting
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

#import <UIKit/UIKit.h>

@protocol WhirlyKitViewWrapper;

/** Rotation delegate 
    is for two fingered rotation around the axis at the middle of the screen
 */
@interface WhirlyGlobeRotateDelegate : NSObject <UIGestureRecognizerDelegate> 

/// If set, the rotation will occur around the center between the two fingers rather than the current viewpoint
@property (nonatomic) bool rotateAroundCenter;

/// Gesture recognizer attached to this delegate (or vice versa, actually)
@property (nonatomic,weak) UIGestureRecognizer *gestureRecognizer;

/// Can be called by a cooperating delegate (which is also messing with rotation) (HACK!)
- (void)updateWithCenter:(CGPoint)center touch:(CGPoint)touch wrapView:(UIView<WhirlyKitViewWrapper> *)glView;

@end