[djohnson]

This may be a simple question, but how do you place items dynamically in a GUI? I need to find X amount of items, which can be changed, and place them in a window. I can set it up with a static amount no problem, but dont have a clue how to do it dynamically. I am trying to use Cocoa w/out Java. I can do it in Java via swing no problem. I need to do this in Objective-C.

Documentation link to developer.apple.com should be fine, unless you want to put code. Thanks!

[bone666]

NSWindow *window...
NSView *contentView = [window contentView];

NSButton *btn = [[NSButton alloc] initWithFrame: NSMakeRect(10, 10, 120, 30)];
[btn setTitle: @"Hello World!"];
[btn setBezelStyle: NSRoundedBezelStyle];

[contentView addSubview: btn];

[djohnson]

Thanks! How about a new NSTextField and possibly a new NSImageView? I will look in the documentation tonight and see if I can do the same thing.

[bone666]

This works in the exact same manner for all subclasses of NSView.

[djohnson]

Yes I see...

NSWindow *window...
NSTextView *textView = [window textView];

NSTextField *text = [[NSTextField alloc] initWithFrame: NSMakeRect(10, 10, 120, 30)];

[textView addSubview: text];

Does this sound like it would work? I will test it our in the morning when I am on my mac.

[bone666]

Nope

NSWindow *window...
NSView *contentView = [window contentView];
NSTextField *text = [[NSTextField alloc] initWithFrame: NSMakeRect(10, 10, 120, 30)];
[contentView addSubview: text];


The contentView method is equivalent to JFrames getContentPane() method. You can either add or remove subviews from this root view or you can set your own root view. E.g.

NSTextField *text = [[NSTextField alloc] initWithFrame: NSMakeRect(10, 10, 120, 30)];
[window setContentView: text];

The result is a window with a NSTextField which has the size of the window.

[djohnson]

Ah ha! I will try that tomorrow. I think it is exactly what I was needing!!! Thanks!

EDIT: How do you get the current window? ie:

NSWindow *window = [self window]; ???

Sorry for these easy questions, my next/better Cocoa book is still being ordered...

[bone666]

You can create it yourself...

NSWindow *window = [[NSWindow alloc]
initWithContentRect: NSMakeRect(10, 10, 100, 100)
styleMask: NSTitledWindowMask | NSClosableWindowMask
backing: NSBackingStoreBuffered
defer: NO];

...or you get it from IB as an outline or [NSApp keyWindow] which returs the NSWindow that receives keyboard events (i.e. the "current" window)...