How to customize disclosure cell in view-based NSOutlineView

by

Solution 1:

Subclass NSOutlineView and override makeViewWithIdentifier:owner:

- (id)makeViewWithIdentifier:(NSString *)identifier owner:(id)owner {
    id view = [super makeViewWithIdentifier:identifier owner:owner];

    if ([identifier isEqualToString:NSOutlineViewDisclosureButtonKey]) {
        // Do your customization
    }

    return view;
}

For Source Lists use NSOutlineViewShowHideButtonKey.

Solution 2:

Interface Builder

The button is added to the column and the identifier set to NSOutlineViewDisclosureButtonKey.

enter image description here

Official documentation from NSOutlineView.h

/* The following NSOutlineView*Keys are used by the View Based NSOutlineView to create the "disclosure button" used to collapse and expand items. The NSOutlineView creates these buttons by calling [self makeViewWithIdentifier:owner:] passing in the key as the identifier and the delegate as the owner. Custom NSButtons (or subclasses thereof) can be provided for NSOutlineView to use in the following two ways:
 1. makeViewWithIdentifier:owner: can be overridden, and if the identifier is (for instance) NSOutlineViewDisclosureButtonKey, a custom NSButton can be configured and returned. Be sure to set the button.identifier to be NSOutlineViewDisclosureButtonKey.
 2. At design time, a button can be added to the outlineview which has this identifier, and it will be unarchived and used as needed.
 
 When a custom button is used, it is important to properly set up the target/action to do something (probably expand or collapse the rowForView: that the sender is located in). Or, one can call super to get the default button, and copy its target/action to get the normal default behavior.
 
 NOTE: These keys are backwards compatible to 10.7, however, the symbol is not exported prior to 10.9 and the regular string value must be used (i.e.: @"NSOutlineViewDisclosureButtonKey").
 */
APPKIT_EXTERN NSString *const NSOutlineViewDisclosureButtonKey NS_AVAILABLE_MAC(10_9); // The normal triangle disclosure button
APPKIT_EXTERN NSString *const NSOutlineViewShowHideButtonKey NS_AVAILABLE_MAC(10_9); // The show/hide button used in "Source Lists"

More Related Contents:

  1. Set environment variables on Mac OS X Lion
  2. How to convert an NSData into an NSString Hex string?
  3. View-based NSTableView with rows that have dynamic heights
  4. What is the “Illegal Instruction: 4” error and why does “-mmacosx-version-min=10.x” fix it?
  5. How to hide the Dock icon
  6. Why does cURL return error “(23) Failed writing body”?
  7. How to create a Menubar application for Mac
  8. How to handle with a default URL scheme
  9. Mac OSX Lion DNS lookup order [closed]
  10. Maven home (M2_HOME) not being picked up by IntelliJ IDEA
  11. check internet connection in cocoa application
  12. configure: error: C compiler cannot create executables
  13. Completely uninstall PostgreSQL 9.0.4 from Mac OSX Lion?
  14. How to detect if OS X is in dark mode?
  15. OSX application without storyboard or xib files using Swift
  16. How to get serial number from Mac hard disks?
  17. NSImage size not real size with some pictures?
  18. Codesign: What are unsealed contents?
  19. Convert Virtual Key Code to unicode string
  20. Adjust screen brightness in Mac OS X app
  21. Is there a way of getting a Mac’s icon given its model number?
  22. Where can I find “make” program for Mac OS X Lion?
  23. How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X Lion?
  24. How to save PNG file from NSImage (retina issues)
  25. How to grep or search .jar files for OpenSSL?
  26. How to check in AppleScript if an app is running, without launching it – via osascript utility
  27. Cannot find stdio.h
  28. uWSGI can not load libssl.1.0.0.dylib
  29. Make 2 contradictory methods work in drawRect
  30. How do I draw an NSString at an angle?

Leave a Comment