1 files changed, 152 insertions, 0 deletions
diff --git a/frontends/cocoa/PSMTabBarControl/PSMOverflowPopUpButton.m b/frontends/cocoa/PSMTabBarControl/PSMOverflowPopUpButton.m
new file mode 100644
index 000000000..c316f6973
--- /dev/null
+++ b/frontends/cocoa/PSMTabBarControl/PSMOverflowPopUpButton.m
@@ -0,0 +1,152 @@
+//
+//  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]) != nil) {
+		[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