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/* HBPictureViewController.m $
This file is part of the HandBrake source code.
Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License. */
#import "HBPictureViewController.h"
@import HandBrakeKit.HBFilters;
@import HandBrakeKit.HBPicture;
static void *HBPictureViewControllerContext = &HBPictureViewControllerContext;
@interface HBPictureViewController ()
@property (weak) IBOutlet NSStepper *widthStepper;
@property (weak) IBOutlet NSStepper *heightStepper;
@property (nonatomic, readwrite) NSColor *labelColor;
@end
@implementation HBPictureViewController
- (instancetype)init
{
self = [super initWithNibName:@"HBPictureViewController" bundle:nil];
if (self)
{
_labelColor = [NSColor disabledControlTextColor];
[self addObserver:self forKeyPath:@"self.picture.modulus" options:NSKeyValueObservingOptionInitial context:HBPictureViewControllerContext];
}
return self;
}
- (void)dealloc
{
@try
{
[self removeObserver:self forKeyPath:@"self.picture.modulus" context:HBPictureViewControllerContext];
}
@catch (NSException * __unused exception) {}
}
- (void)setPicture:(HBPicture *)picture
{
_picture = picture;
if (_picture)
{
self.labelColor = [NSColor controlTextColor];
}
else
{
self.labelColor = [NSColor disabledControlTextColor];
}
}
#pragma mark - KVO
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
if (context == HBPictureViewControllerContext)
{
// Set the increment here, it's not possible with bindings.
if ([keyPath isEqualToString:@"self.picture.modulus"])
{
[self.widthStepper setIncrement:self.picture.modulus];
[self.heightStepper setIncrement:self.picture.modulus];
}
}
else
{
[super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
}
}
@end
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