On Apr 18, 2011, at 5:37 AM, Дмитрий Николаев wrote: > Hi to all! > > I need to implement custom separator with custom width between two part of > paragraph in text view: > > AAAA AA A BBB BBBBB B > > This is separator must be included as non-editable character. So user can't > delete it or modify. > I understand, that i must overload standard behavior of textview in some > points (for example, when user press "delete" right after separator nothing > will be deleted)
The potential user interface you're describing sounds quite scary. Are you certain the end result is going to make sense to customers? But anyways, to get to where you want to be, look at the [NSTextViewDelegate textView: shouldChangeTextInRange: replacementString:] method or -- since you're likely to be subclassing NSTextView in order to do custom drawing of whatever character / thing you're going to use as a separator -- you can also look at [NSTextView shouldChangeTextInRange: replacementString:]. If these methods are called and the range crosses your "non-editable" character, you can return NO and disallow the user from deleting anything that includes that separator. m _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
