1 files changed, 161 insertions, 0 deletions
diff --git a/cocoa/PSMTabBarControl/PSMOverflowPopUpButton.m b/cocoa/PSMTabBarControl/PSMOverflowPopUpButton.m
new file mode 100644
index 000000000..cc96b910f
--- /dev/null
+++ b/cocoa/PSMTabBarControl/PSMOverflowPopUpButton.m
@@ -0,0 +1,161 @@
+//
+//  PSMOverflowPopUpButton.m
+//  PSMTabBarControl
+//
+//  Created by John Pannell on 11/4/05.
+//  Copyright 2005 Positive Spin Media. All rights reserved.
+//
+
+#import "PSMOverflowPopUpButton.h"
+#import "PSMTabBarControl.h"
+
+#define TIMER_INTERVAL 1.0 / 15.0
+#define ANIMATION_STEP 0.033f
+
+@implementation PSMOverflowPopUpButton
+
+- (id)initWithFrame:(NSRect)frameRect pullsDown:(BOOL)flag
+{
+    if (self = [super initWithFrame:frameRect pullsDown:YES]) {
+        [self setBezelStyle:NSRegularSquareBezelStyle];
+        [self setBordered:NO];
+        [self setTitle:@""];
+        [self setPreferredEdge:NSMaxXEdge];
+        _PSMTabBarOverflowPopUpImage = [[NSImage alloc] initByReferencingFile:[[PSMTabBarControl bundle] pathForImageResource:@"overflowImage"]];
+		_PSMTabBarOverflowDownPopUpImage = [[NSImage alloc] initByReferencingFile:[[PSMTabBarControl bundle] pathForImageResource:@"overflowImagePressed"]];
+		_animatingAlternateImage = NO;
+    }
+    return self;
+}
+
+- (void)dealloc
+{
+    [_PSMTabBarOverflowPopUpImage release];
+	[_PSMTabBarOverflowDownPopUpImage release];
+    [super dealloc];
+}
+
+- (void)drawRect:(NSRect)rect
+{
+    if(_PSMTabBarOverflowPopUpImage == nil){
+        [super drawRect:rect];
+        return;
+    }
+	
+    NSImage *image = (_down) ? _PSMTabBarOverflowDownPopUpImage : _PSMTabBarOverflowPopUpImage;
+	NSSize imageSize = [image size];
+	NSRect bounds = [self bounds];
+	
+	NSPoint drawPoint = NSMakePoint(NSMidX(bounds) - (imageSize.width * 0.5f), NSMidY(bounds) - (imageSize.height * 0.5f));
+	
+    if ([self isFlipped]) {
+        drawPoint.y += imageSize.height;
+    }
+	
+    [image compositeToPoint:drawPoint operation:NSCompositeSourceOver fraction:(_animatingAlternateImage ? 0.7f : 1.0f)];
+	
+	if (_animatingAlternateImage) {
+		NSImage *alternateImage = [self alternateImage];
+		NSSize altImageSize = [alternateImage size];
+		drawPoint = NSMakePoint(NSMidX(bounds) - (altImageSize.width * 0.5f), NSMidY(bounds) - (altImageSize.height * 0.5f));
+		
+		if ([self isFlipped]) {
+			drawPoint.y += altImageSize.height;
+		}
+		
+		[[self alternateImage] compositeToPoint:drawPoint operation:NSCompositeSourceOver fraction:sin(_animationValue * M_PI)];
+	}
+}
+
+- (void)mouseDown:(NSEvent *)event
+{
+	_down = YES;
+	[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(notificationReceived:) name:NSMenuDidEndTrackingNotification object:[self menu]];
+	[self setNeedsDisplay:YES];
+	[super mouseDown:event];
+}
+
+- (void)setHidden:(BOOL)value
+{
+	if ([self isHidden] != value) {
+		if (value) {
+			// Stop any animating alternate image if we hide
+			[_animationTimer invalidate], _animationTimer = nil;
+		} else if (_animatingAlternateImage) {
+			// Restart any animating alternate image if we unhide
+			_animationValue = ANIMATION_STEP;
+			_animationTimer = [NSTimer scheduledTimerWithTimeInterval:TIMER_INTERVAL target:self selector:@selector(animateStep:) userInfo:nil repeats:YES];
+			[[NSRunLoop currentRunLoop] addTimer:_animationTimer forMode:NSEventTrackingRunLoopMode];
+		}
+	}
+	
+	[super setHidden:value];
+}
+
+- (void)notificationReceived:(NSNotification *)notification
+{
+	_down = NO;
+	[self setNeedsDisplay:YES];
+	[[NSNotificationCenter defaultCenter] removeObserver:self];
+}
+
+- (void)setAnimatingAlternateImage:(BOOL)flag
+{
+	if (_animatingAlternateImage != flag) {
+		_animatingAlternateImage = flag;
+		
+		if (![self isHidden]) {
+			if (flag) {
+				_animationValue = ANIMATION_STEP;
+				_animationTimer = [NSTimer scheduledTimerWithTimeInterval:TIMER_INTERVAL target:self selector:@selector(animateStep:) userInfo:nil repeats:YES];
+				[[NSRunLoop currentRunLoop] addTimer:_animationTimer forMode:NSEventTrackingRunLoopMode];
+
+			} else {
+				[_animationTimer invalidate], _animationTimer = nil;
+			}
+
+			[self setNeedsDisplay:YES];
+		}
+	}
+}
+
+- (BOOL)animatingAlternateImage;
+{
+	return _animatingAlternateImage;
+}
+
+- (void)animateStep:(NSTimer *)timer
+{
+	_animationValue += ANIMATION_STEP;
+	
+	if (_animationValue >= 1) {
+		_animationValue = ANIMATION_STEP;
+	}
+	
+	[self setNeedsDisplay:YES];
+}
+
+#pragma mark -
+#pragma mark Archiving
+
+- (void)encodeWithCoder:(NSCoder *)aCoder {
+    [super encodeWithCoder:aCoder];
+    if ([aCoder allowsKeyedCoding]) {
+        [aCoder encodeObject:_PSMTabBarOverflowPopUpImage forKey:@"PSMTabBarOverflowPopUpImage"];
+        [aCoder encodeObject:_PSMTabBarOverflowDownPopUpImage forKey:@"PSMTabBarOverflowDownPopUpImage"];
+		[aCoder encodeBool:_animatingAlternateImage forKey:@"PSMTabBarOverflowAnimatingAlternateImage"];
+    }
+}
+
+- (id)initWithCoder:(NSCoder *)aDecoder {
+    if ( (self = [super initWithCoder:aDecoder]) ) {
+        if ([aDecoder allowsKeyedCoding]) {
+            _PSMTabBarOverflowPopUpImage = [[aDecoder decodeObjectForKey:@"PSMTabBarOverflowPopUpImage"] retain];
+            _PSMTabBarOverflowDownPopUpImage = [[aDecoder decodeObjectForKey:@"PSMTabBarOverflowDownPopUpImage"] retain];
+			[self setAnimatingAlternateImage:[aDecoder decodeBoolForKey:@"PSMTabBarOverflowAnimatingAlternateImage"]];
+        }
+    }
+    return self;
+}
+
+@end