/*

     File: SKTZoomingScrollView.h

 Abstract: A controller to manage zooming of a Sketch graphics view.

  Version: 1.8

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#import <Cocoa/Cocoa.h>

// The name of the binding supported by this class, in addition to the ones whose support is inherited from NSScrollView.

extern NSString *SKTZoomingScrollViewFactor;

@interface SKTZoomingScrollView : NSScrollView {

    @private

    // Every instance of this class creates a popup button with zoom factors in it and places it next to the horizontal scroll bar.

    NSPopUpButton *_factorPopUpButton;

    // The current zoom factor. This instance variable isn't actually read by any SKTZoomingScrollView code and wouldn't be necessary if it weren't for an oddity in the default implementation of key-value binding (KVB): -[NSObject(NSKeyValueBindingCreation) bind:toObject:withKeyPath:options:] sends the receiver a -valueForKeyPath: message, even though the returned value is typically not interesting. With this here key-value coding (KVC) direct instance variable access makes -valueForKeyPath: happy.

    CGFloat _factor;

}

@end