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// DBPrefsWindowController.m
#import "DBPrefsWindowController.h"
static DBPrefsWindowController *_sharedPrefsWindowController = nil;
@implementation DBPrefsWindowController
#pragma mark -
#pragma mark Class Methods
+ (DBPrefsWindowController *)sharedPrefsWindowController
if (!_sharedPrefsWindowController) {
_sharedPrefsWindowController = [[self alloc] initWithWindowNibName:[self nibName]];
return _sharedPrefsWindowController;
+ (NSString *)nibName
// Subclasses can override this to use a nib with a different name.
return @"Preferences";
#pragma mark -
#pragma mark Setup & Teardown
- (id)initWithWindow:(NSWindow *)window
// -initWithWindow: is the designated initializer for NSWindowController.
self = [super initWithWindow:nil];
if (self != nil) {
// Set up an array and some dictionaries to keep track
// of the views we'll be displaying.
toolbarIdentifiers = [[NSMutableArray alloc] init];
toolbarViews = [[NSMutableDictionary alloc] init];
toolbarItems = [[NSMutableDictionary alloc] init];
// Set up an NSViewAnimation to animate the transitions.
viewAnimation = [[NSViewAnimation alloc] init];
[viewAnimation setAnimationBlockingMode:NSAnimationNonblocking];
[viewAnimation setAnimationCurve:NSAnimationEaseInOut];
[viewAnimation setDelegate:self];
[self setCrossFade:YES];
[self setShiftSlowsAnimation:YES];
return self;
(void)window; // To prevent compiler warnings.
- (void)windowDidLoad
// Create a new window to display the preference views.
// If the developer attached a window to this controller
// in Interface Builder, it gets replaced with this one.
NSPanel *panel = [[[NSPanel alloc] initWithContentRect:NSMakeRect(0,0,1000,1000)
styleMask:(NSTitledWindowMask |
NSClosableWindowMask |
defer:YES] autorelease];
[self setWindow:panel];
contentSubview = [[[NSView alloc] initWithFrame:[[[self window] contentView] frame]] autorelease];
[contentSubview setAutoresizingMask:(NSViewMinYMargin | NSViewWidthSizable)];
[[[self window] contentView] addSubview:contentSubview];
[[self window] setShowsToolbarButton:NO];
- (void) dealloc {
[toolbarIdentifiers release];
[toolbarViews release];
[toolbarItems release];
[viewAnimation release];
[super dealloc];
#pragma mark -
#pragma mark Configuration
- (void)setupToolbar
// Subclasses must override this method to add items to the
// toolbar by calling -addView:label: or -addView:label:image:.
- (void)addView:(NSView *)view label:(NSString *)label
[self addView:view
image:[NSImage imageNamed:label]];
- (void)addView:(NSView *)view label:(NSString *)label image:(NSImage *)image
NSAssert (view != nil,
@"Attempted to add a nil view when calling -addView:label:image:.");
NSString *identifier = [[label copy] autorelease];
[toolbarIdentifiers addObject:identifier];
[toolbarViews setObject:view forKey:identifier];
NSToolbarItem *item = [[[NSToolbarItem alloc] initWithItemIdentifier:identifier] autorelease];
[item setLabel:label];
[item setImage:image];
[item setTarget:self];
[item setAction:@selector(toggleActivePreferenceView:)];
[toolbarItems setObject:item forKey:identifier];
#pragma mark -
#pragma mark Accessor Methods
- (BOOL)crossFade
return _crossFade;
- (void)setCrossFade:(BOOL)fade
_crossFade = fade;
- (BOOL)shiftSlowsAnimation
return _shiftSlowsAnimation;
- (void)setShiftSlowsAnimation:(BOOL)slows
_shiftSlowsAnimation = slows;
#pragma mark -
#pragma mark Overriding Methods
- (IBAction)showWindow:(id)sender
// This forces the resources in the nib to load.
(void)[self window];
// Clear the last setup and get a fresh one.
[toolbarIdentifiers removeAllObjects];
[toolbarViews removeAllObjects];
[toolbarItems removeAllObjects];
[self setupToolbar];
NSAssert (([toolbarIdentifiers count] > 0),
@"No items were added to the toolbar in -setupToolbar.");
if ([[self window] toolbar] == nil) {
NSToolbar *toolbar = [[NSToolbar alloc] initWithIdentifier:@"DBPreferencesToolbar"];
[toolbar setAllowsUserCustomization:NO];
[toolbar setAutosavesConfiguration:NO];
[toolbar setSizeMode:NSToolbarSizeModeDefault];
[toolbar setDisplayMode:NSToolbarDisplayModeIconAndLabel];
[toolbar setDelegate:self];
[[self window] setToolbar:toolbar];
[toolbar release];
NSString *identifier = [self defaultViewIdentifier];
[[[self window] toolbar] setSelectedItemIdentifier:identifier];
[self displayViewForIdentifier:identifier animate:NO];
[[self window] center];
[super showWindow:sender];
#pragma mark -
#pragma mark Toolbar
- (NSArray *)toolbarDefaultItemIdentifiers:(NSToolbar*)toolbar
return toolbarIdentifiers;
- (NSArray *)toolbarAllowedItemIdentifiers:(NSToolbar*)toolbar
return toolbarIdentifiers;
- (NSArray *)toolbarSelectableItemIdentifiers:(NSToolbar *)toolbar
return toolbarIdentifiers;
- (NSToolbarItem *)toolbar:(NSToolbar *)toolbar itemForItemIdentifier:(NSString *)identifier willBeInsertedIntoToolbar:(BOOL)willBeInserted
return [toolbarItems objectForKey:identifier];
- (void)toggleActivePreferenceView:(NSToolbarItem *)toolbarItem
[self displayViewForIdentifier:[toolbarItem itemIdentifier] animate:YES];
- (void)displayViewForIdentifier:(NSString *)identifier animate:(BOOL)animate
// Find the view we want to display.
NSView *newView = [toolbarViews objectForKey:identifier];
// See if there are any visible views.
NSView *oldView = nil;
if ([[contentSubview subviews] count] > 0) {
// Get a list of all of the views in the window. Usually at this
// point there is just one visible view. But if the last fade
// hasn't finished, we need to get rid of it now before we move on.
NSEnumerator *subviewsEnum = [[contentSubview subviews] reverseObjectEnumerator];
// The first one (last one added) is our visible view.
oldView = [subviewsEnum nextObject];
// Remove any others.
NSView *reallyOldView = nil;
while ((reallyOldView = [subviewsEnum nextObject]) != nil) {
[reallyOldView removeFromSuperviewWithoutNeedingDisplay];
if (![newView isEqualTo:oldView]) {
NSRect frame = [newView bounds];
frame.origin.y = NSHeight([contentSubview frame]) - NSHeight([newView bounds]);
[newView setFrame:frame];
[contentSubview addSubview:newView];
[[self window] setInitialFirstResponder:newView];
if (animate && [self crossFade])
[self crossFadeView:oldView withView:newView];
else {
[oldView removeFromSuperviewWithoutNeedingDisplay];
[newView setHidden:NO];
[[self window] setFrame:[self frameForView:newView] display:YES animate:animate];
[[self window] setTitle:[[toolbarItems objectForKey:identifier] label]];
#pragma mark -
#pragma mark Cross-Fading Methods
- (void)crossFadeView:(NSView *)oldView withView:(NSView *)newView
[viewAnimation stopAnimation];
if ([self shiftSlowsAnimation] && [[[self window] currentEvent] modifierFlags] & NSShiftKeyMask)
[viewAnimation setDuration:1.25];
[viewAnimation setDuration:0.25];
NSDictionary *fadeOutDictionary = [NSDictionary dictionaryWithObjectsAndKeys:
oldView, NSViewAnimationTargetKey,
NSViewAnimationFadeOutEffect, NSViewAnimationEffectKey,
NSDictionary *fadeInDictionary = [NSDictionary dictionaryWithObjectsAndKeys:
newView, NSViewAnimationTargetKey,
NSViewAnimationFadeInEffect, NSViewAnimationEffectKey,
NSDictionary *resizeDictionary = [NSDictionary dictionaryWithObjectsAndKeys:
[self window], NSViewAnimationTargetKey,
[NSValue valueWithRect:[[self window] frame]], NSViewAnimationStartFrameKey,
[NSValue valueWithRect:[self frameForView:newView]], NSViewAnimationEndFrameKey,
NSArray *animationArray = [NSArray arrayWithObjects:
[viewAnimation setViewAnimations:animationArray];
[viewAnimation startAnimation];
- (void)animationDidEnd:(NSAnimation *)animation
NSView *subview;
// Get a list of all of the views in the window. Hopefully
// at this point there are two. One is visible and one is hidden.
NSEnumerator *subviewsEnum = [[contentSubview subviews] reverseObjectEnumerator];
// This is our visible view. Just get past it.
[subviewsEnum nextObject];
// Remove everything else. There should be just one, but
// if the user does a lot of fast clicking, we might have
// more than one to remove.
while ((subview = [subviewsEnum nextObject]) != nil) {
[subview removeFromSuperviewWithoutNeedingDisplay];
// This is a work-around that prevents the first
// toolbar icon from becoming highlighted.
[[self window] makeFirstResponder:nil];
- (NSRect)frameForView:(NSView *)view
// Calculate the window size for the new view.
NSRect windowFrame = [[self window] frame];
NSRect contentRect = [[self window] contentRectForFrameRect:windowFrame];
float windowTitleAndToolbarHeight = NSHeight(windowFrame) - NSHeight(contentRect);
windowFrame.size.height = NSHeight([view frame]) + windowTitleAndToolbarHeight;
windowFrame.size.width = NSWidth([view frame]);
windowFrame.origin.y = NSMaxY([[self window] frame]) - NSHeight(windowFrame);
return windowFrame;
#pragma mark -
#pragma mark Default View
- (NSString *)defaultViewIdentifier
return [toolbarIdentifiers objectAtIndex:0];
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