Question

I am making an app that is a standalone menu item and the basis for the code is sample code I found on a website. The sample code uses a number as the menu icon, but I want to change it to an image.

I want it to be like other apps where it shows icon.png when not clicked and icon-active.png when clicked.

The current code is this:

- (void)drawRect:(NSRect)rect {
// Draw background if appropriate.
if (clicked) {
    [[NSColor selectedMenuItemColor] set];
    NSRectFill(rect);
}

// Draw some text, just to show how it's done.
NSString *text = @"3"; // whatever you want

NSColor *textColor = [NSColor controlTextColor];
if (clicked) {
    textColor = [NSColor selectedMenuItemTextColor];
}

NSFont *msgFont = [NSFont menuBarFontOfSize:15.0];
NSMutableParagraphStyle *paraStyle = [[NSMutableParagraphStyle alloc] init];
[paraStyle setParagraphStyle:[NSParagraphStyle defaultParagraphStyle]];
[paraStyle setAlignment:NSCenterTextAlignment];
[paraStyle setLineBreakMode:NSLineBreakByTruncatingTail];
NSMutableDictionary *msgAttrs = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                 msgFont, NSFontAttributeName,
                                 textColor, NSForegroundColorAttributeName,
                                 paraStyle, NSParagraphStyleAttributeName,
                                 nil];
[paraStyle release];

NSSize msgSize = [text sizeWithAttributes:msgAttrs];
NSRect msgRect = NSMakeRect(0, 0, msgSize.width, msgSize.height);
msgRect.origin.x = ([self frame].size.width - msgSize.width) / 2.0;
msgRect.origin.y = ([self frame].size.height - msgSize.height) / 2.0;

[text drawInRect:msgRect withAttributes:msgAttrs];
}

Also, I found a post describing a method on how to do this, but it did not work for me. The url to that is this: http://mattgemmell.com/2008/03/04/using-maattachedwindow-with-an-nsstatusitem/comment-page-1#comment-46501.

Thanks!

Answer 1

Use an NSImage and draw it where desired. For example:

NSString *name = clicked? @"icon-active" : @"icon";
NSImage *image = [NSImage imageNamed:name];
NSPoint p = [self bounds].origin;
[image drawAtPoint:p fromRect:NSZeroRect
         operation:NSCompositeSourceOver fraction:1.0];