great thank you very much corbin!
________________________________ From: Corbin Dunn <corb...@apple.com> To: Rick C. <jo_p...@yahoo.com> Cc: Graham Cox <graham....@bigpond.com>; cocoa dev <cocoa-dev@lists.apple.com> Sent: Tuesday, August 18, 2009 10:05:19 PM Subject: Re: disabling tooltips table view On Aug 18, 2009, at 5:39 AM, Rick C. wrote: > thank you graham, > > upon closer look i was in error to use the word tooltip. i have seen this > method before and tried it again and it does work to change the tooltip or > disable it. what i'm seeing must be some form of highlighting. although i > have disabled the standard highlighting where when you click the rows it > highlights. this is not my issue. it seems the rows that are truncated with > a tail are the ones that highlight when i hover my mouse over the row. on a > row that is not truncated it does not highlight. i have coded into my custom > cell setLineBreakMode:NSLineBreakByTruncatingTail. Maybe the issue lies > somewhere here? > > edited: I just discovered this method: > > - (NSRect)expansionFrameWithFrame:(NSRect)cellFrame inView:(NSView *)view > > and returned NSZeroRect and seems that does the job. Assuming it does thank > you for your help you did get me on the right track! What you are seeing is called an "expansion tool tip". (they aren't highlighting -- that is confusing term to use for them). It is documented in our release notes: http://developer.apple.com/releasenotes/Cocoa/AppKit.html NSCell Automatic Expansion ToolTip Frame > NSCell has some new API to support expansion tool tips in certain controls: > - (NSRect)expansionFrameWithFrame:(NSRect)cellFrame inView:(NSView *)view; > - (void)drawWithExpansionFrame:(NSRect)cellFrame inView:(NSView *)view; > An expansion tool tip allows one to see truncated text in a special floating > window that is similar but different from a normal ToolTip. Currently, > NSTableView, NSOutlineView and NSBrowser display expansion tool tips when the > text is truncated. If you have a cell that will be displayed in one of these > controls, it is recommended that you implement the above methods to properly > support the expansion tool tip feature. By default, the methods are properly > implemented in NSTextFieldCell and NSBrowserCell. NSCell will always return > NSZeroRect, and prevent the expansion from happening. For an example of how > to implement it, see the SimpleBrowser demo app. > > Clients of NSTableView, NSOutlineView and NSBrowser can prevent the cell > expansion from happening on a particular row/column by using the new delegate > methods declared in the appropriate header files. > > Your work around is one way to turn them off; however, it is much easier to use this method: > > /* Optional - Expansion ToolTip support > Implement this method and return NO to prevent an expansion tooltip from > appearing for a particular cell in a given row and tableColumn. See NSCell.h > for more information on expansion tool tips. > */ > - (BOOL)tableView:(NSTableView *)tableView > shouldShowCellExpansionForTableColumn:(NSTableColumn *)tableColumn > row:(NSInteger)row AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER; > corbin _______________________________________________ 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
