Controller/BrowserWindowController.m
/* |
File: BrowserWindowController.m |
Abstract: Window Controller Class for CocoaSlides Browser Windows |
Version: 1.5 |
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*/ |
#import "BrowserWindowController.h" |
#import "Asset.h" |
#import "AssetCollection.h" |
#import "AssetCollectionView.h" |
@implementation BrowserWindowController |
- (id)initWithPath:(NSString *)newPath { |
self = [super initWithWindowNibName:@"BrowserWindow"]; |
if (self) { |
path = [newPath copy]; |
sortKey = [@"filename" copy]; |
sortsAscending = YES; |
} |
return self; |
} |
- (void)dealloc { |
[sortKey release]; |
[assetCollection release]; |
[path release]; |
[super dealloc]; |
} |
- (void)updateSortDescriptors { |
// Build a new NSSortDescriptor that we can use to order our image assets, according to the current "sortKey" and "sortsAscending" setting. |
NSString *effectiveSortKey = [[NSString alloc] initWithFormat:@"asset.%@", [self sortKey]]; |
NSSortDescriptor *sortDescriptor = nil; |
if ([[self sortKey] isEqualToString:@"filename"]) { |
sortDescriptor = [[NSSortDescriptor alloc] initWithKey:effectiveSortKey ascending:[self sortsAscending] selector:@selector(caseInsensitiveCompare:)]; |
} else { |
sortDescriptor = [[NSSortDescriptor alloc] initWithKey:effectiveSortKey ascending:[self sortsAscending]]; |
} |
// Tell our AssetCollectionView to use the new sort descriptor. |
[assetCollectionView setSortDescriptors:[NSArray arrayWithObject:sortDescriptor]]; |
[sortDescriptor release]; |
[effectiveSortKey release]; |
} |
- (NSString *)sortKey { |
return sortKey; |
} |
- (void)setSortKey:(NSString *)newSortKey { |
if (sortKey != newSortKey) { |
id old = sortKey; |
sortKey = [newSortKey copy]; |
[old release]; |
[self updateSortDescriptors]; |
} |
} |
- (BOOL)sortsAscending { |
return sortsAscending; |
} |
- (void)setSortsAscending:(BOOL)flag { |
if (sortsAscending != flag) { |
sortsAscending = flag; |
[self updateSortDescriptors]; |
} |
} |
- (void)windowDidLoad { |
// Ask for assetCollectionView and all its descendants to be rendered and animated |
// using layers. Note that this is the only part of this code sample that refers in |
// any way to the existence of layers. -- AppKit takes care of the implications of this |
// automatically! Interface Builder 3.0 even allows the per-view "wantsLayer" flag to |
// be set in the .nib, which would allow removing these two lines of code. |
// |
[assetCollectionView setWantsLayer:YES]; |
// Create an AssetCollection for browsing our assigned path. |
assetCollection = [[AssetCollection alloc] initWithRootURL:[NSURL fileURLWithPath:path]]; |
// Set the window's title to the name of the folder we're browsing. |
[[assetCollectionView window] setTitle:[path lastPathComponent]]; |
// Hook things up and start loading thumbnails. |
[self updateSortDescriptors]; |
[assetCollectionView setAssetCollection:assetCollection]; |
[assetCollection startRefresh]; |
} |
- (void)windowDidBecomeKey:(NSNotification *)notification { |
// Rescan for filesystem changes each time window becomes key again. |
[assetCollection startRefresh]; |
} |
- (void)refresh:(id)sender { |
// Ask our assetCollection to check for new, changed, and removed asset files. Our assetCollectionView will be automatically notified of any changes to the assetCollection via KVO. |
[assetCollection startRefresh]; |
} |
- (IBAction)showSlideshowWindow:(id)sender { |
[slideshowWindowController setAssetCollection:assetCollection]; |
[slideshowWindowController showWindow:self]; |
} |
@end |
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