dupeguru-cocoa/cocoa/DetailsPanelPicture.m

/* 
Copyright 2017 Virgil Dupras

This software is licensed under the "GPLv3" License as described in the "LICENSE" file, 
which should be included with this package. The terms are also available at 
http://www.gnu.org/licenses/gpl-3.0.html
*/

#import "Utils.h"
#import "NSNotificationAdditions.h"
#import "NSImageAdditions.h"
#import "PyDupeGuru.h"
#import "DetailsPanelPicture.h"
#import "Consts.h"

@implementation DetailsPanelPicture

@synthesize dupeImage;
@synthesize dupeProgressIndicator;
@synthesize refImage;
@synthesize refProgressIndicator;

- (id)initWithApp:(PyDupeGuru *)aApp
{
    self = [super initWithPyRef:[aApp detailsPanel]];
    pyApp = aApp;
    _needsRefresh = YES;
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(imageLoaded:) name:ImageLoadedNotification object:self];
    return self;
}

- (NSString *)getWindowNibName
{
    return @"DetailsPanelPicture";
}

- (void)loadImageAsync:(NSString *)imagePath
{
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    NSImage *image = [[NSImage alloc] initByReferencingFile:imagePath];
    NSImage *thumbnail = [image imageByScalingProportionallyToSize:NSMakeSize(512,512)];
    [image release];
    NSMutableDictionary *params = [NSMutableDictionary dictionary];
    [params setValue:imagePath forKey:@"imagePath"];
    [params setValue:thumbnail forKey:@"image"];
    [[NSNotificationCenter defaultCenter] postNotificationOnMainThreadWithName:ImageLoadedNotification object:self userInfo:params waitUntilDone:YES];
    [pool release];
}

- (void)refreshDetails
{
    if (!_needsRefresh)
        return;
    [detailsTable reloadData];
    
    NSString *refPath = [pyApp getSelectedDupeRefPath];
    if (_refPath != nil)
        [_refPath autorelease];
    _refPath = [refPath retain];
    [NSThread detachNewThreadSelector:@selector(loadImageAsync:) toTarget:self withObject:refPath];
    NSString *dupePath = [pyApp getSelectedDupePath];
    if (_dupePath != nil)
        [_dupePath autorelease];
    _dupePath = [dupePath retain];
    if (![dupePath isEqual: refPath])
        [NSThread detachNewThreadSelector:@selector(loadImageAsync:) toTarget:self withObject:dupePath];
    [refProgressIndicator startAnimation:nil];
    [dupeProgressIndicator startAnimation:nil];
    _needsRefresh = NO;
}

/* Notifications */
- (void)imageLoaded:(NSNotification *)aNotification
{
    NSString *imagePath = [[aNotification userInfo] valueForKey:@"imagePath"];
    NSImage *image = [[aNotification userInfo] valueForKey:@"image"];
    if ([imagePath isEqual: _refPath])
    {
        [refImage setImage:image];
        [refProgressIndicator stopAnimation:nil];
    }
    if ([imagePath isEqual: _dupePath])
    {
        [dupeImage setImage:image];
        [dupeProgressIndicator stopAnimation:nil];
    }
}

/* Python --> Cocoa */
- (void)refresh
{
    _needsRefresh = YES;
    [super refresh];
}
@end