1 files changed, 180 insertions, 0 deletions
diff --git a/frontends/cocoa/PSMTabBarControl/PSMRolloverButton.m b/frontends/cocoa/PSMTabBarControl/PSMRolloverButton.m
new file mode 100644
index 000000000..65df6aa0f
--- /dev/null
+++ b/frontends/cocoa/PSMTabBarControl/PSMRolloverButton.m
@@ -0,0 +1,180 @@
+//
+//  PSMOverflowPopUpButton.m
+//  NetScrape
+//
+//  Created by John Pannell on 8/4/04.
+//  Copyright 2004 Positive Spin Media. All rights reserved.
+//
+
+#import "PSMRolloverButton.h"
+
+@implementation PSMRolloverButton
+
+- (void)awakeFromNib
+{
+    if ([[self superclass] instancesRespondToSelector:@selector(awakeFromNib)]) {
+        [super awakeFromNib];
+    }
+
+    [[NSNotificationCenter defaultCenter] addObserver:self
+                                             selector:@selector(rolloverFrameDidChange:)
+                                                 name:NSViewFrameDidChangeNotification
+                                               object:self];
+    [self setPostsFrameChangedNotifications:YES];
+    [self resetCursorRects];
+
+    _myTrackingRectTag = -1;
+}
+
+- (void)dealloc
+{
+    [[NSNotificationCenter defaultCenter] removeObserver:self];
+
+    [self removeTrackingRect];
+}
+
+// the regular image
+- (void)setUsualImage:(NSImage *)newImage
+{
+    _usualImage = newImage;
+
+    [self setImage:_usualImage];
+}
+
+- (NSImage *)usualImage
+{
+    return _usualImage;
+}
+
+- (void)setRolloverImage:(NSImage *)newImage
+{
+    _rolloverImage = newImage;
+}
+
+- (NSImage *)rolloverImage
+{
+    return _rolloverImage;
+}
+
+//Remove old tracking rects when we change superviews
+- (void)viewWillMoveToSuperview:(NSView *)newSuperview
+{
+    [self removeTrackingRect];
+
+    [super viewWillMoveToSuperview:newSuperview];
+}
+
+- (void)viewDidMoveToSuperview
+{
+    [super viewDidMoveToSuperview];
+
+    [self resetCursorRects];
+}
+
+- (void)viewWillMoveToWindow:(NSWindow *)newWindow
+{
+    [self removeTrackingRect];
+
+    [super viewWillMoveToWindow:newWindow];
+}
+
+- (void)viewDidMoveToWindow
+{
+    [super viewDidMoveToWindow];
+
+    [self resetCursorRects];
+}
+
+- (void)rolloverFrameDidChange:(NSNotification *)inNotification
+{
+    [self resetCursorRects];
+}
+
+- (void)addTrackingRect
+{
+    // assign a tracking rect to watch for mouse enter/exit
+    NSRect trackRect = [self bounds];
+    NSPoint localPoint = [self convertPoint:NSPointFromCGPoint([self.window convertRectFromScreen:(NSRect){.origin = NSEvent.mouseLocation, .size = CGSizeMake(1, 1) }].origin) fromView:nil];
+    BOOL mouseInside = NSPointInRect(localPoint, trackRect);
+
+    _myTrackingRectTag = [self addTrackingRect:trackRect owner:self userData:nil assumeInside:mouseInside];
+    if (mouseInside) {
+        //[self mouseEntered:nil];
+        [self setImage:_rolloverImage];
+    } else {
+        //[self mouseExited:nil];
+        [self setImage:_usualImage];
+    }
+}
+
+- (void)removeTrackingRect
+{
+    if (_myTrackingRectTag != -1) {
+        [self removeTrackingRect:_myTrackingRectTag];
+    }
+    _myTrackingRectTag = -1;
+}
+
+// override for rollover effect
+- (void)mouseEntered:(NSEvent *)theEvent
+{
+    // set rollover image
+    [self setImage:_rolloverImage];
+
+    [super mouseEntered:theEvent];
+}
+
+- (void)mouseExited:(NSEvent *)theEvent
+{
+    // restore usual image
+    [self setImage:_usualImage];
+
+    [super mouseExited:theEvent];
+}
+
+- (void)resetCursorRects
+{
+    // called when the button rect has been changed
+    [self removeTrackingRect];
+    [self addTrackingRect];
+}
+
+- (void)setFrame:(NSRect)rect
+{
+    [super setFrame:rect];
+    [self resetCursorRects];
+}
+
+- (void)setBounds:(NSRect)rect
+{
+    [super setBounds:rect];
+    [self resetCursorRects];
+}
+
+#pragma mark -
+#pragma mark Archiving
+
+- (void)encodeWithCoder:(NSCoder *)aCoder
+{
+    [super encodeWithCoder:aCoder];
+    if ([aCoder allowsKeyedCoding]) {
+        [aCoder encodeObject:_rolloverImage forKey:@"rolloverImage"];
+        [aCoder encodeObject:_usualImage forKey:@"usualImage"];
+        [aCoder encodeInt64:_myTrackingRectTag forKey:@"myTrackingRectTag"];
+    }
+}
+
+- (id)initWithCoder:(NSCoder *)aDecoder
+{
+    self = [super initWithCoder:aDecoder];
+    if (self) {
+        if ([aDecoder allowsKeyedCoding]) {
+            _rolloverImage = [aDecoder decodeObjectForKey:@"rolloverImage"];
+            _usualImage = [aDecoder decodeObjectForKey:@"usualImage"];
+            _myTrackingRectTag = [aDecoder decodeInt64ForKey:@"myTrackingRectTag"];
+        }
+    }
+    return self;
+}
+
+@end